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reactos/dll/win32/comctl32/treeview.c
Giannis Adamopoulos b3fb8555bf [COMCTL32] Sync with Wine Staging 3.3. CORE-14434
2018-04-20 16:27:17 +02:00

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/* Treeview control
*
* Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
* Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
* Copyright 1999 Sylvain St-Germain
* Copyright 2002 CodeWeavers, Aric Stewart
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* NOTES
*
* Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
*
* Note2: If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
* of size TEXT_CALLBACK_SIZE in DoSetItem.
* We use callbackMask to keep track of fields to be updated.
*
* TODO:
* missing notifications: TVN_GETINFOTIP, TVN_KEYDOWN,
* TVN_SETDISPINFO
*
* missing styles: TVS_INFOTIP, TVS_RTLREADING,
*
* missing item styles: TVIS_EXPANDPARTIAL, TVIS_EX_FLAT,
* TVIS_EX_DISABLED
*
* Make the insertion mark look right.
* Scroll (instead of repaint) as much as possible.
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <ctype.h>
#include <stdarg.h>
#include <string.h>
#include <limits.h>
#include <stdlib.h>
#define NONAMELESSUNION
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winnls.h"
#include "commctrl.h"
#include "comctl32.h"
#include "uxtheme.h"
#include "vssym32.h"
#include "wine/unicode.h"
#include "wine/debug.h"
#include "wine/exception.h"
#include "wine/heap.h"
WINE_DEFAULT_DEBUG_CHANNEL(treeview);
/* internal structures */
typedef struct tagTREEVIEW_INFO
{
HWND hwnd;
HWND hwndNotify; /* Owner window to send notifications to */
DWORD dwStyle;
HTREEITEM root;
UINT uInternalStatus;
INT Timer;
UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
INT cdmode; /* last custom draw setting */
UINT uScrollTime; /* max. time for scrolling in milliseconds */
BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
UINT uItemHeight; /* item height */
BOOL bHeightSet;
LONG clientWidth; /* width of control window */
LONG clientHeight; /* height of control window */
LONG treeWidth; /* width of visible tree items */
LONG treeHeight; /* height of visible tree items */
UINT uIndent; /* indentation in pixels */
HTREEITEM selectedItem; /* handle to selected item or 0 if none */
HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
HTREEITEM editItem; /* item being edited with builtin edit box */
HTREEITEM firstVisible; /* handle to item whose top edge is at y = 0 */
LONG maxVisibleOrder;
HTREEITEM dropItem; /* handle to item selected by drag cursor */
HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
HIMAGELIST dragList; /* Bitmap of dragged item */
LONG scrollX;
INT wheelRemainder;
COLORREF clrBk;
COLORREF clrText;
COLORREF clrLine;
COLORREF clrInsertMark;
HFONT hFont;
HFONT hDefaultFont;
HFONT hBoldFont;
HFONT hUnderlineFont;
HFONT hBoldUnderlineFont;
HCURSOR hcurHand;
HWND hwndToolTip;
HWND hwndEdit;
WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
BOOL bIgnoreEditKillFocus;
BOOL bLabelChanged;
BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
HIMAGELIST himlNormal;
int normalImageHeight;
int normalImageWidth;
HIMAGELIST himlState;
int stateImageHeight;
int stateImageWidth;
HDPA items;
DWORD lastKeyPressTimestamp;
WPARAM charCode;
INT nSearchParamLength;
WCHAR szSearchParam[ MAX_PATH ];
} TREEVIEW_INFO;
typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
{
HTREEITEM parent; /* handle to parent or 0 if at root */
HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
HTREEITEM firstChild; /* handle to first child or 0 if no child */
UINT callbackMask;
UINT state;
UINT stateMask;
LPWSTR pszText;
int cchTextMax;
int iImage;
int iSelectedImage;
int iExpandedImage;
int cChildren;
LPARAM lParam;
int iIntegral; /* item height multiplier (1 is normal) */
int iLevel; /* indentation level:0=root level */
HTREEITEM lastChild;
HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
RECT rect;
LONG linesOffset;
LONG stateOffset;
LONG imageOffset;
LONG textOffset;
LONG textWidth; /* horizontal text extent for pszText */
LONG visibleOrder; /* Depth-first numbering of the items whose ancestors are all expanded,
corresponding to a top-to-bottom ordering in the tree view.
Each item takes up "item.iIntegral" spots in the visible order.
0 is the root's first child. */
const TREEVIEW_INFO *infoPtr; /* tree data this item belongs to */
} TREEVIEW_ITEM;
/******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
#define KEY_DELAY 450
/* bitflags for infoPtr->uInternalStatus */
#define TV_HSCROLL 0x01 /* treeview too large to fit in window */
#define TV_VSCROLL 0x02 /* (horizontal/vertical) */
#define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
#define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
#define TV_RDRAG 0x10 /* ditto Rbutton */
#define TV_RDRAGGING 0x20
/* bitflags for infoPtr->timer */
#define TV_EDIT_TIMER 2
#define TV_EDIT_TIMER_SET 2
#define TEXT_CALLBACK_SIZE 260
#define TREEVIEW_LEFT_MARGIN 8
#define MINIMUM_INDENT 19
#define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
#define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
#define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
#define ISVISIBLE(x) ((x)->visibleOrder >= 0)
#define GETLINECOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrGrayText : (x))
#define GETBKCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindow : (x))
#define GETTXTCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindowText : (x))
#define GETINSCOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrBtnText : (x))
static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
/* Random Utilities *****************************************************/
static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
/* Returns the treeview private data if hwnd is a treeview.
* Otherwise returns an undefined value. */
static inline TREEVIEW_INFO *
TREEVIEW_GetInfoPtr(HWND hwnd)
{
return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
}
/* Don't call this. Nothing wants an item index. */
static inline int
TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
{
return DPA_GetPtrIndex(infoPtr->items, handle);
}
/* Checks if item has changed and needs to be redrawn */
static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
const TVITEMEXW *tvChange)
{
/* Number of children has changed */
if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
return TRUE;
/* Image has changed and it's not a callback */
if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
tiNew->iImage != I_IMAGECALLBACK)
return TRUE;
/* Selected image has changed and it's not a callback */
if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
tiNew->iSelectedImage != I_IMAGECALLBACK)
return TRUE;
if ((tvChange->mask & TVIF_EXPANDEDIMAGE) && (tiOld->iExpandedImage != tiNew->iExpandedImage) &&
tiNew->iExpandedImage != I_IMAGECALLBACK)
return TRUE;
/* Text has changed and it's not a callback */
if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
tiNew->pszText != LPSTR_TEXTCALLBACKW)
return TRUE;
/* Indent has changed */
if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
return TRUE;
/* Item state has changed */
if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
return TRUE;
return FALSE;
}
/***************************************************************************
* This method checks that handle is an item for this tree.
*/
static BOOL
TREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
{
if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
{
TRACE("invalid item %p\n", handle);
return FALSE;
}
else
return TRUE;
}
static HFONT
TREEVIEW_CreateBoldFont(HFONT hOrigFont)
{
LOGFONTW font;
GetObjectW(hOrigFont, sizeof(font), &font);
font.lfWeight = FW_BOLD;
return CreateFontIndirectW(&font);
}
static HFONT
TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
{
LOGFONTW font;
GetObjectW(hOrigFont, sizeof(font), &font);
font.lfUnderline = TRUE;
return CreateFontIndirectW(&font);
}
static HFONT
TREEVIEW_CreateBoldUnderlineFont(HFONT hfont)
{
LOGFONTW font;
GetObjectW(hfont, sizeof(font), &font);
font.lfWeight = FW_BOLD;
font.lfUnderline = TRUE;
return CreateFontIndirectW(&font);
}
static inline HFONT
TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
{
if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
return item->state & TVIS_BOLD ? infoPtr->hBoldUnderlineFont : infoPtr->hUnderlineFont;
if (item->state & TVIS_BOLD)
return infoPtr->hBoldFont;
return infoPtr->hFont;
}
/* for trace/debugging purposes only */
static const char *
TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
{
if (item == NULL) return "<null item>";
if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
if (item->pszText == NULL) return "<null>";
return debugstr_w(item->pszText);
}
/* An item is not a child of itself. */
static BOOL
TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
{
do
{
child = child->parent;
if (child == parent) return TRUE;
} while (child != NULL);
return FALSE;
}
static BOOL
TREEVIEW_IsFullRowSelect(const TREEVIEW_INFO *infoPtr)
{
return !(infoPtr->dwStyle & TVS_HASLINES) && (infoPtr->dwStyle & TVS_FULLROWSELECT);
}
static BOOL
TREEVIEW_IsItemHit(const TREEVIEW_INFO *infoPtr, const TVHITTESTINFO *ht)
{
if (TREEVIEW_IsFullRowSelect(infoPtr))
return ht->flags & (TVHT_ONITEMINDENT | TVHT_ONITEMBUTTON | TVHT_ONITEM | TVHT_ONITEMRIGHT);
else
return ht->flags & TVHT_ONITEM;
}
/* Tree Traversal *******************************************************/
/***************************************************************************
* This method returns the last expanded sibling or child child item
* of a tree node
*/
static TREEVIEW_ITEM *
TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
if (!item) return NULL;
while (item->lastChild)
{
if (item->state & TVIS_EXPANDED)
item = item->lastChild;
else
break;
}
if (item == infoPtr->root)
return NULL;
return item;
}
/***************************************************************************
* This method returns the previous non-hidden item in the list not
* considering the tree hierarchy.
*/
static TREEVIEW_ITEM *
TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
{
if (tvItem->prevSibling)
{
/* This item has a prevSibling, get the last item in the sibling's tree. */
TREEVIEW_ITEM *upItem = tvItem->prevSibling;
if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
else
return upItem;
}
else
{
/* this item does not have a prevSibling, get the parent */
return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
}
}
/***************************************************************************
* This method returns the next physical item in the treeview not
* considering the tree hierarchy.
*/
static TREEVIEW_ITEM *
TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
{
/*
* If this item has children and is expanded, return the first child
*/
if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
{
return tvItem->firstChild;
}
/*
* try to get the sibling
*/
if (tvItem->nextSibling)
return tvItem->nextSibling;
/*
* Otherwise, get the parent's sibling.
*/
while (tvItem->parent)
{
tvItem = tvItem->parent;
if (tvItem->nextSibling)
return tvItem->nextSibling;
}
return NULL;
}
/***************************************************************************
* This method returns the nth item starting at the given item. It returns
* the last item (or first) we we run out of items.
*
* Will scroll backward if count is <0.
* forward if count is >0.
*/
static TREEVIEW_ITEM *
TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
LONG count)
{
TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
TREEVIEW_ITEM *previousItem;
assert(item != NULL);
if (count > 0)
{
next_item = TREEVIEW_GetNextListItem;
}
else if (count < 0)
{
count = -count;
next_item = TREEVIEW_GetPrevListItem;
}
else
return item;
do
{
previousItem = item;
item = next_item(infoPtr, item);
} while (--count && item != NULL);
return item ? item : previousItem;
}
/* Notifications ************************************************************/
static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
{
if (!infoPtr->bNtfUnicode) {
switch (code) {
case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
case TVN_DELETEITEMW: return TVN_DELETEITEMA;
case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
}
}
return code;
}
static inline BOOL
TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, UINT code, NMHDR *hdr)
{
TRACE("code=%d, hdr=%p\n", code, hdr);
hdr->hwndFrom = infoPtr->hwnd;
hdr->idFrom = GetWindowLongPtrW(infoPtr->hwnd, GWLP_ID);
hdr->code = get_notifycode(infoPtr, code);
return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, hdr->idFrom, (LPARAM)hdr);
}
static BOOL
TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
{
NMHDR hdr;
return TREEVIEW_SendRealNotify(infoPtr, code, &hdr);
}
static VOID
TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
{
tvItem->mask = mask;
tvItem->hItem = item;
tvItem->state = item->state;
tvItem->stateMask = 0;
tvItem->iImage = item->iImage;
tvItem->iSelectedImage = item->iSelectedImage;
tvItem->cChildren = item->cChildren;
tvItem->lParam = item->lParam;
if(mask & TVIF_TEXT)
{
if (!infoPtr->bNtfUnicode)
{
tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
tvItem->pszText = heap_alloc (tvItem->cchTextMax);
WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
}
else
{
tvItem->cchTextMax = item->cchTextMax;
tvItem->pszText = item->pszText;
}
}
else
{
tvItem->cchTextMax = 0;
tvItem->pszText = NULL;
}
}
static BOOL
TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
{
NMTREEVIEWW nmhdr;
BOOL ret;
TRACE("code:%d action:0x%x olditem:%p newitem:%p\n",
code, action, oldItem, newItem);
memset(&nmhdr, 0, sizeof(NMTREEVIEWW));
nmhdr.action = action;
if (oldItem)
TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
if (newItem)
TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
nmhdr.ptDrag.x = 0;
nmhdr.ptDrag.y = 0;
ret = TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
if (!infoPtr->bNtfUnicode)
{
heap_free(nmhdr.itemOld.pszText);
heap_free(nmhdr.itemNew.pszText);
}
return ret;
}
static BOOL
TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
HTREEITEM dragItem, POINT pt)
{
NMTREEVIEWW nmhdr;
TRACE("code:%d dragitem:%p\n", code, dragItem);
nmhdr.action = 0;
nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
nmhdr.itemNew.hItem = dragItem;
nmhdr.itemNew.state = dragItem->state;
nmhdr.itemNew.lParam = dragItem->lParam;
nmhdr.ptDrag.x = pt.x;
nmhdr.ptDrag.y = pt.y;
return TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
}
static BOOL
TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
HDC hdc, RECT rc)
{
NMTVCUSTOMDRAW nmcdhdr;
NMCUSTOMDRAW *nmcd;
TRACE("drawstage:0x%x hdc:%p\n", dwDrawStage, hdc);
nmcd = &nmcdhdr.nmcd;
nmcd->dwDrawStage = dwDrawStage;
nmcd->hdc = hdc;
nmcd->rc = rc;
nmcd->dwItemSpec = 0;
nmcd->uItemState = 0;
nmcd->lItemlParam = 0;
nmcdhdr.clrText = infoPtr->clrText;
nmcdhdr.clrTextBk = infoPtr->clrBk;
nmcdhdr.iLevel = 0;
return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr.nmcd.hdr);
}
/* FIXME: need to find out when the flags in uItemState need to be set */
static BOOL
TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
TREEVIEW_ITEM *item, UINT uItemDrawState,
NMTVCUSTOMDRAW *nmcdhdr)
{
NMCUSTOMDRAW *nmcd;
DWORD dwDrawStage;
DWORD_PTR dwItemSpec;
UINT uItemState;
dwDrawStage = CDDS_ITEM | uItemDrawState;
dwItemSpec = (DWORD_PTR)item;
uItemState = 0;
if (item->state & TVIS_SELECTED)
uItemState |= CDIS_SELECTED;
if (item == infoPtr->selectedItem)
uItemState |= CDIS_FOCUS;
if (item == infoPtr->hotItem)
uItemState |= CDIS_HOT;
nmcd = &nmcdhdr->nmcd;
nmcd->dwDrawStage = dwDrawStage;
nmcd->hdc = hdc;
nmcd->rc = item->rect;
nmcd->dwItemSpec = dwItemSpec;
nmcd->uItemState = uItemState;
nmcd->lItemlParam = item->lParam;
nmcdhdr->iLevel = item->iLevel;
TRACE("drawstage:0x%x hdc:%p item:%lx, itemstate:0x%x, lItemlParam:0x%lx\n",
nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
nmcd->uItemState, nmcd->lItemlParam);
return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr->nmcd.hdr);
}
static BOOL
TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
{
NMTVDISPINFOW tvdi;
BOOL ret;
TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
&tvdi.item, editItem);
ret = TREEVIEW_SendRealNotify(infoPtr, TVN_BEGINLABELEDITW, &tvdi.hdr);
if (!infoPtr->bNtfUnicode)
heap_free(tvdi.item.pszText);
return ret;
}
static void
TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
UINT mask)
{
NMTVDISPINFOEXW callback;
TRACE("mask=0x%x, callbackmask=0x%x\n", mask, item->callbackMask);
mask &= item->callbackMask;
if (mask == 0) return;
/* 'state' always contains valid value, as well as 'lParam'.
* All other parameters are uninitialized.
*/
callback.item.pszText = item->pszText;
callback.item.cchTextMax = item->cchTextMax;
callback.item.mask = mask;
callback.item.hItem = item;
callback.item.state = item->state;
callback.item.lParam = item->lParam;
/* If text is changed we need to recalculate textWidth */
if (mask & TVIF_TEXT)
item->textWidth = 0;
TREEVIEW_SendRealNotify(infoPtr, TVN_GETDISPINFOW, &callback.hdr);
TRACE("resulting code 0x%08x\n", callback.hdr.code);
/* It may have changed due to a call to SetItem. */
mask &= item->callbackMask;
if ((mask & TVIF_TEXT) && callback.item.pszText != item->pszText)
{
/* Instead of copying text into our buffer user specified his own */
if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
LPWSTR newText;
int buflen;
int len = MultiByteToWideChar( CP_ACP, 0,
(LPSTR)callback.item.pszText, -1,
NULL, 0);
buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
newText = heap_realloc(item->pszText, buflen);
TRACE("returned str %s, len=%d, buflen=%d\n",
debugstr_a((LPSTR)callback.item.pszText), len, buflen);
if (newText)
{
item->pszText = newText;
MultiByteToWideChar( CP_ACP, 0,
(LPSTR)callback.item.pszText, -1,
item->pszText, buflen/sizeof(WCHAR));
item->cchTextMax = buflen/sizeof(WCHAR);
}
/* If realloc fails we have nothing to do, but keep original text */
}
else {
int len = max(lstrlenW(callback.item.pszText) + 1,
TEXT_CALLBACK_SIZE);
LPWSTR newText = heap_realloc(item->pszText, len);
TRACE("returned wstr %s, len=%d\n",
debugstr_w(callback.item.pszText), len);
if (newText)
{
item->pszText = newText;
strcpyW(item->pszText, callback.item.pszText);
item->cchTextMax = len;
}
/* If realloc fails we have nothing to do, but keep original text */
}
}
else if (mask & TVIF_TEXT) {
/* User put text into our buffer, that is ok unless A string */
if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
LPWSTR newText;
int buflen;
int len = MultiByteToWideChar( CP_ACP, 0,
(LPSTR)callback.item.pszText, -1,
NULL, 0);
buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
newText = heap_alloc(buflen);
TRACE("same buffer str %s, len=%d, buflen=%d\n",
debugstr_a((LPSTR)callback.item.pszText), len, buflen);
if (newText)
{
LPWSTR oldText = item->pszText;
item->pszText = newText;
MultiByteToWideChar( CP_ACP, 0,
(LPSTR)callback.item.pszText, -1,
item->pszText, buflen/sizeof(WCHAR));
item->cchTextMax = buflen/sizeof(WCHAR);
heap_free(oldText);
}
}
}
if (mask & TVIF_IMAGE)
item->iImage = callback.item.iImage;
if (mask & TVIF_SELECTEDIMAGE)
item->iSelectedImage = callback.item.iSelectedImage;
if (mask & TVIF_EXPANDEDIMAGE)
item->iExpandedImage = callback.item.iExpandedImage;
if (mask & TVIF_CHILDREN)
item->cChildren = callback.item.cChildren;
if (callback.item.mask & TVIF_STATE)
{
item->state &= ~callback.item.stateMask;
item->state |= (callback.item.state & callback.item.stateMask);
}
/* These members are now permanently set. */
if (callback.item.mask & TVIF_DI_SETITEM)
item->callbackMask &= ~callback.item.mask;
}
/***************************************************************************
* This function uses cChildren field to decide whether the item has
* children or not.
* Note: if this returns TRUE, the child items may not actually exist,
* they could be virtual.
*
* Just use item->firstChild to check for physical children.
*/
static BOOL
TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_CHILDREN);
/* Protect for a case when callback field is not changed by a host,
otherwise negative values trigger normal notifications. */
return item->cChildren != 0 && item->cChildren != I_CHILDRENCALLBACK;
}
static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
{
INT format;
TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
if (nCommand != NF_REQUERY) return 0;
format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
TRACE("format=%d\n", format);
/* Invalid format returned by NF_QUERY defaults to ANSI*/
if (format != NFR_ANSI && format != NFR_UNICODE)
format = NFR_ANSI;
infoPtr->bNtfUnicode = (format == NFR_UNICODE);
return format;
}
/* Item Position ********************************************************/
/* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
static VOID
TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
/* has TVS_LINESATROOT and (TVS_HASLINES|TVS_HASBUTTONS) */
BOOL lar = ((infoPtr->dwStyle & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
> TVS_LINESATROOT);
item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
- infoPtr->scrollX;
item->stateOffset = item->linesOffset + infoPtr->uIndent;
item->imageOffset = item->stateOffset
+ (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
}
static VOID
TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
{
HDC hdc;
HFONT hOldFont=0;
SIZE sz;
/* DRAW's OM docker creates items like this */
if (item->pszText == NULL)
{
item->textWidth = 0;
return;
}
if (hDC != 0)
{
hdc = hDC;
}
else
{
hdc = GetDC(infoPtr->hwnd);
hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
}
GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
item->textWidth = sz.cx;
if (hDC == 0)
{
SelectObject(hdc, hOldFont);
ReleaseDC(0, hdc);
}
}
static VOID
TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
item->rect.top = infoPtr->uItemHeight *
(item->visibleOrder - infoPtr->firstVisible->visibleOrder);
item->rect.bottom = item->rect.top
+ infoPtr->uItemHeight * item->iIntegral - 1;
item->rect.left = 0;
item->rect.right = infoPtr->clientWidth;
}
/* We know that only items after start need their order updated. */
static void
TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
{
TREEVIEW_ITEM *item;
int order;
if (!start)
{
start = infoPtr->root->firstChild;
order = 0;
}
else
order = start->visibleOrder;
for (item = start; item != NULL;
item = TREEVIEW_GetNextListItem(infoPtr, item))
{
if (!ISVISIBLE(item) && order > 0)
TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
item->visibleOrder = order;
order += item->iIntegral;
}
infoPtr->maxVisibleOrder = order;
for (item = start; item != NULL;
item = TREEVIEW_GetNextListItem(infoPtr, item))
{
TREEVIEW_ComputeItemRect(infoPtr, item);
}
}
/* Update metrics of all items in selected subtree.
* root must be expanded
*/
static VOID
TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
{
TREEVIEW_ITEM *sibling;
HDC hdc;
HFONT hOldFont;
if (!root->firstChild || !(root->state & TVIS_EXPANDED))
return;
root->state &= ~TVIS_EXPANDED;
sibling = TREEVIEW_GetNextListItem(infoPtr, root);
root->state |= TVIS_EXPANDED;
hdc = GetDC(infoPtr->hwnd);
hOldFont = SelectObject(hdc, infoPtr->hFont);
for (; root != sibling;
root = TREEVIEW_GetNextListItem(infoPtr, root))
{
TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
if (root->callbackMask & TVIF_TEXT)
TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
if (root->textWidth == 0)
{
SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
}
}
SelectObject(hdc, hOldFont);
ReleaseDC(infoPtr->hwnd, hdc);
}
/* Item Allocation **********************************************************/
static TREEVIEW_ITEM *
TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
{
TREEVIEW_ITEM *newItem = heap_alloc_zero(sizeof(*newItem));
if (!newItem)
return NULL;
/* I_IMAGENONE would make more sense but this is neither what is
* documented (MSDN doesn't specify) nor what Windows actually does
* (it sets it to zero)... and I can so imagine an application using
* inc/dec to toggle the images. */
newItem->iImage = 0;
newItem->iSelectedImage = 0;
newItem->iExpandedImage = (WORD)I_IMAGENONE;
newItem->infoPtr = infoPtr;
if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
{
heap_free(newItem);
return NULL;
}
return newItem;
}
/* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
* free item->pszText. */
static void
TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
if (infoPtr->selectedItem == item)
infoPtr->selectedItem = NULL;
if (infoPtr->hotItem == item)
infoPtr->hotItem = NULL;
if (infoPtr->focusedItem == item)
infoPtr->focusedItem = NULL;
if (infoPtr->firstVisible == item)
infoPtr->firstVisible = NULL;
if (infoPtr->dropItem == item)
infoPtr->dropItem = NULL;
if (infoPtr->insertMarkItem == item)
infoPtr->insertMarkItem = NULL;
heap_free(item);
}
/* Item Insertion *******************************************************/
/***************************************************************************
* This method inserts newItem before sibling as a child of parent.
* sibling can be NULL, but only if parent has no children.
*/
static void
TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
TREEVIEW_ITEM *parent)
{
assert(parent != NULL);
if (sibling != NULL)
{
assert(sibling->parent == parent);
if (sibling->prevSibling != NULL)
sibling->prevSibling->nextSibling = newItem;
newItem->prevSibling = sibling->prevSibling;
sibling->prevSibling = newItem;
}
else
newItem->prevSibling = NULL;
newItem->nextSibling = sibling;
if (parent->firstChild == sibling)
parent->firstChild = newItem;
if (parent->lastChild == NULL)
parent->lastChild = newItem;
}
/***************************************************************************
* This method inserts newItem after sibling as a child of parent.
* sibling can be NULL, but only if parent has no children.
*/
static void
TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
TREEVIEW_ITEM *parent)
{
assert(parent != NULL);
if (sibling != NULL)
{
assert(sibling->parent == parent);
if (sibling->nextSibling != NULL)
sibling->nextSibling->prevSibling = newItem;
newItem->nextSibling = sibling->nextSibling;
sibling->nextSibling = newItem;
}
else
newItem->nextSibling = NULL;
newItem->prevSibling = sibling;
if (parent->lastChild == sibling)
parent->lastChild = newItem;
if (parent->firstChild == NULL)
parent->firstChild = newItem;
}
static BOOL
TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
const TVITEMEXW *tvItem, BOOL isW)
{
UINT callbackClear = 0;
UINT callbackSet = 0;
TRACE("item %p\n", item);
/* Do this first in case it fails. */
if (tvItem->mask & TVIF_TEXT)
{
item->textWidth = 0; /* force width recalculation */
if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) /* covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
{
int len;
LPWSTR newText;
if (isW)
len = lstrlenW(tvItem->pszText) + 1;
else
len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
newText = heap_realloc(item->pszText, len * sizeof(WCHAR));
if (newText == NULL) return FALSE;
callbackClear |= TVIF_TEXT;
item->pszText = newText;
item->cchTextMax = len;
if (isW)
lstrcpynW(item->pszText, tvItem->pszText, len);
else
MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
item->pszText, len);
TRACE("setting text %s, item %p\n", debugstr_w(item->pszText), item);
}
else
{
callbackSet |= TVIF_TEXT;
item->pszText = heap_realloc(item->pszText, TEXT_CALLBACK_SIZE * sizeof(WCHAR));
item->cchTextMax = TEXT_CALLBACK_SIZE;
TRACE("setting callback, item %p\n", item);
}
}
if (tvItem->mask & TVIF_CHILDREN)
{
item->cChildren = tvItem->cChildren;
if (item->cChildren == I_CHILDRENCALLBACK)
callbackSet |= TVIF_CHILDREN;
else
callbackClear |= TVIF_CHILDREN;
}
if (tvItem->mask & TVIF_IMAGE)
{
item->iImage = tvItem->iImage;
if (item->iImage == I_IMAGECALLBACK)
callbackSet |= TVIF_IMAGE;
else
callbackClear |= TVIF_IMAGE;
}
if (tvItem->mask & TVIF_SELECTEDIMAGE)
{
item->iSelectedImage = tvItem->iSelectedImage;
if (item->iSelectedImage == I_IMAGECALLBACK)
callbackSet |= TVIF_SELECTEDIMAGE;
else
callbackClear |= TVIF_SELECTEDIMAGE;
}
if (tvItem->mask & TVIF_EXPANDEDIMAGE)
{
item->iExpandedImage = tvItem->iExpandedImage;
if (item->iExpandedImage == I_IMAGECALLBACK)
callbackSet |= TVIF_EXPANDEDIMAGE;
else
callbackClear |= TVIF_EXPANDEDIMAGE;
}
if (tvItem->mask & TVIF_PARAM)
item->lParam = tvItem->lParam;
/* If the application sets TVIF_INTEGRAL without
* supplying a TVITEMEX structure, it's toast. */
if (tvItem->mask & TVIF_INTEGRAL)
item->iIntegral = tvItem->iIntegral;
if (tvItem->mask & TVIF_STATE)
{
TRACE("prevstate 0x%x, state 0x%x, mask 0x%x\n", item->state, tvItem->state,
tvItem->stateMask);
item->state &= ~tvItem->stateMask;
item->state |= (tvItem->state & tvItem->stateMask);
}
if (tvItem->mask & TVIF_STATEEX)
{
FIXME("New extended state: 0x%x\n", tvItem->uStateEx);
}
item->callbackMask |= callbackSet;
item->callbackMask &= ~callbackClear;
return TRUE;
}
/* Note that the new item is pre-zeroed. */
static LRESULT
TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
{
const TVITEMEXW *tvItem = &ptdi->u.itemex;
HTREEITEM insertAfter;
TREEVIEW_ITEM *newItem, *parentItem;
BOOL bTextUpdated = FALSE;
if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
{
parentItem = infoPtr->root;
}
else
{
parentItem = ptdi->hParent;
if (!TREEVIEW_ValidItem(infoPtr, parentItem))
{
WARN("invalid parent %p\n", parentItem);
return 0;
}
}
insertAfter = ptdi->hInsertAfter;
/* Validate this now for convenience. */
switch ((DWORD_PTR)insertAfter)
{
case (DWORD_PTR)TVI_FIRST:
case (DWORD_PTR)TVI_LAST:
case (DWORD_PTR)TVI_SORT:
break;
default:
if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
insertAfter->parent != parentItem)
{
WARN("invalid insert after %p\n", insertAfter);
insertAfter = TVI_LAST;
}
}
TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
(tvItem->mask & TVIF_TEXT)
? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
: (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
: "<no label>");
newItem = TREEVIEW_AllocateItem(infoPtr);
if (newItem == NULL)
return 0;
newItem->parent = parentItem;
newItem->iIntegral = 1;
newItem->visibleOrder = -1;
if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
return 0;
/* After this point, nothing can fail. (Except for TVI_SORT.) */
infoPtr->uNumItems++;
switch ((DWORD_PTR)insertAfter)
{
case (DWORD_PTR)TVI_FIRST:
{
TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
if (infoPtr->firstVisible == originalFirst)
TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
}
break;
case (DWORD_PTR)TVI_LAST:
TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
break;
/* hInsertAfter names a specific item we want to insert after */
default:
TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
break;
case (DWORD_PTR)TVI_SORT:
{
TREEVIEW_ITEM *aChild;
TREEVIEW_ITEM *previousChild = NULL;
TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
BOOL bItemInserted = FALSE;
aChild = parentItem->firstChild;
bTextUpdated = TRUE;
TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
/* Iterate the parent children to see where we fit in */
while (aChild != NULL)
{
INT comp;
TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
comp = lstrcmpW(newItem->pszText, aChild->pszText);
if (comp < 0) /* we are smaller than the current one */
{
TREEVIEW_InsertBefore(newItem, aChild, parentItem);
if (infoPtr->firstVisible == originalFirst &&
aChild == originalFirst)
TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
bItemInserted = TRUE;
break;
}
else if (comp > 0) /* we are bigger than the current one */
{
previousChild = aChild;
/* This will help us to exit if there is no more sibling */
aChild = (aChild->nextSibling == 0)
? NULL
: aChild->nextSibling;
/* Look at the next item */
continue;
}
else if (comp == 0)
{
/*
* An item with this name is already existing, therefore,
* we add after the one we found
*/
TREEVIEW_InsertAfter(newItem, aChild, parentItem);
bItemInserted = TRUE;
break;
}
}
/*
* we reach the end of the child list and the item has not
* yet been inserted, therefore, insert it after the last child.
*/
if ((!bItemInserted) && (aChild == NULL))
TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
break;
}
}
TRACE("new item %p; parent %p, mask 0x%x\n", newItem,
newItem->parent, tvItem->mask);
newItem->iLevel = newItem->parent->iLevel + 1;
if (newItem->parent->cChildren == 0)
newItem->parent->cChildren = 1;
if (infoPtr->dwStyle & TVS_CHECKBOXES)
{
if (STATEIMAGEINDEX(newItem->state) == 0)
newItem->state |= INDEXTOSTATEIMAGEMASK(1);
}
if (infoPtr->firstVisible == NULL)
infoPtr->firstVisible = newItem;
TREEVIEW_VerifyTree(infoPtr);
if (!infoPtr->bRedraw) return (LRESULT)newItem;
if (parentItem == infoPtr->root ||
(ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
{
TREEVIEW_ITEM *item;
TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
if (!bTextUpdated)
TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
TREEVIEW_UpdateScrollBars(infoPtr);
/*
* if the item was inserted in a visible part of the tree,
* invalidate it, as well as those after it
*/
for (item = newItem;
item != NULL;
item = TREEVIEW_GetNextListItem(infoPtr, item))
TREEVIEW_Invalidate(infoPtr, item);
}
else
{
/* refresh treeview if newItem is the first item inserted under parentItem */
if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
{
/* parent got '+' - update it */
TREEVIEW_Invalidate(infoPtr, parentItem);
}
}
return (LRESULT)newItem;
}
/* Item Deletion ************************************************************/
static void
TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
static void
TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
{
TREEVIEW_ITEM *kill = parentItem->firstChild;
while (kill != NULL)
{
TREEVIEW_ITEM *next = kill->nextSibling;
TREEVIEW_RemoveItem(infoPtr, kill);
kill = next;
}
assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
assert(parentItem->firstChild == NULL);
assert(parentItem->lastChild == NULL);
}
static void
TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
{
TREEVIEW_ITEM *parentItem;
assert(item != NULL);
assert(item->parent != NULL); /* i.e. it must not be the root */
parentItem = item->parent;
if (parentItem->firstChild == item)
parentItem->firstChild = item->nextSibling;
if (parentItem->lastChild == item)
parentItem->lastChild = item->prevSibling;
if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
&& parentItem->cChildren > 0)
parentItem->cChildren = 0;
if (item->prevSibling)
item->prevSibling->nextSibling = item->nextSibling;
if (item->nextSibling)
item->nextSibling->prevSibling = item->prevSibling;
}
static void
TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
TRACE("%p, (%s)\n", item, TREEVIEW_ItemName(item));
if (item->firstChild)
TREEVIEW_RemoveAllChildren(infoPtr, item);
TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
TVIF_HANDLE | TVIF_PARAM, item, 0);
TREEVIEW_UnlinkItem(item);
infoPtr->uNumItems--;
if (item->pszText != LPSTR_TEXTCALLBACKW)
heap_free(item->pszText);
TREEVIEW_FreeItem(infoPtr, item);
}
/* Empty out the tree. */
static void
TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
{
TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
}
static LRESULT
TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM item)
{
TREEVIEW_ITEM *newSelection = NULL;
TREEVIEW_ITEM *newFirstVisible = NULL;
TREEVIEW_ITEM *parent, *prev = NULL;
BOOL visible = FALSE;
if (item == TVI_ROOT || !item)
{
TRACE("TVI_ROOT\n");
parent = infoPtr->root;
newSelection = NULL;
visible = TRUE;
TREEVIEW_RemoveTree(infoPtr);
}
else
{
if (!TREEVIEW_ValidItem(infoPtr, item))
return FALSE;
TRACE("%p (%s)\n", item, TREEVIEW_ItemName(item));
parent = item->parent;
if (ISVISIBLE(item))
{
prev = TREEVIEW_GetPrevListItem(infoPtr, item);
visible = TRUE;
}
if (infoPtr->selectedItem != NULL
&& (item == infoPtr->selectedItem
|| TREEVIEW_IsChildOf(item, infoPtr->selectedItem)))
{
if (item->nextSibling)
newSelection = item->nextSibling;
else if (item->parent != infoPtr->root)
newSelection = item->parent;
else
newSelection = item->prevSibling;
TRACE("newSelection = %p\n", newSelection);
}
if (infoPtr->firstVisible == item)
{
visible = TRUE;
if (item->nextSibling)
newFirstVisible = item->nextSibling;
else if (item->prevSibling)
newFirstVisible = item->prevSibling;
else if (item->parent != infoPtr->root)
newFirstVisible = item->parent;
TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
}
else
newFirstVisible = infoPtr->firstVisible;
TREEVIEW_RemoveItem(infoPtr, item);
}
/* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
if (!infoPtr->selectedItem && newSelection)
{
if (TREEVIEW_ValidItem(infoPtr, newSelection))
TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
}
/* Validate insertMark dropItem.
* hotItem ??? - used for comparison only.
*/
if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
infoPtr->insertMarkItem = 0;
if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
infoPtr->dropItem = 0;
if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
newFirstVisible = infoPtr->root->firstChild;
TREEVIEW_VerifyTree(infoPtr);
if (visible)
TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
if (!infoPtr->bRedraw) return TRUE;
if (visible)
{
TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL);
}
else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
{
/* parent lost '+/-' - update it */
TREEVIEW_Invalidate(infoPtr, parent);
}
return TRUE;
}
/* Get/Set Messages *********************************************************/
static LRESULT
TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
{
infoPtr->bRedraw = wParam != 0;
if (infoPtr->bRedraw)
{
TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL);
}
return 0;
}
static LRESULT
TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
return infoPtr->uIndent;
}
static LRESULT
TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
{
TRACE("\n");
if (newIndent < MINIMUM_INDENT)
newIndent = MINIMUM_INDENT;
if (infoPtr->uIndent != newIndent)
{
infoPtr->uIndent = newIndent;
TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL);
}
return 0;
}
static LRESULT
TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
return (LRESULT)infoPtr->hwndToolTip;
}
static LRESULT
TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
{
HWND prevToolTip;
TRACE("\n");
prevToolTip = infoPtr->hwndToolTip;
infoPtr->hwndToolTip = hwndTT;
return (LRESULT)prevToolTip;
}
static LRESULT
TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
{
BOOL rc = infoPtr->bNtfUnicode;
infoPtr->bNtfUnicode = fUnicode;
return rc;
}
static LRESULT
TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
{
return infoPtr->bNtfUnicode;
}
static LRESULT
TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
{
return infoPtr->uScrollTime;
}
static LRESULT
TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
{
UINT uOldScrollTime = infoPtr->uScrollTime;
infoPtr->uScrollTime = min(uScrollTime, 100);
return uOldScrollTime;
}
static LRESULT
TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
{
TRACE("\n");
switch (wParam)
{
case TVSIL_NORMAL:
return (LRESULT)infoPtr->himlNormal;
case TVSIL_STATE:
return (LRESULT)infoPtr->himlState;
default:
return 0;
}
}
#define TVHEIGHT_MIN 16
#define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
/* Compute the natural height for items. */
static UINT
TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
{
TEXTMETRICW tm;
HDC hdc = GetDC(0);
HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
UINT height;
/* Height is the maximum of:
* 16 (a hack because our fonts are tiny), and
* The text height + border & margin, and
* The size of the normal image list
*/
GetTextMetricsW(hdc, &tm);
SelectObject(hdc, hOldFont);
ReleaseDC(0, hdc);
height = TVHEIGHT_MIN;
if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
if (height < infoPtr->normalImageHeight)
height = infoPtr->normalImageHeight;
/* Round down, unless we support odd ("non even") heights. */
if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
height &= ~1;
return height;
}
static LRESULT
TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, UINT type, HIMAGELIST himlNew)
{
HIMAGELIST himlOld = 0;
int oldWidth = infoPtr->normalImageWidth;
int oldHeight = infoPtr->normalImageHeight;
TRACE("%u,%p\n", type, himlNew);
switch (type)
{
case TVSIL_NORMAL:
himlOld = infoPtr->himlNormal;
infoPtr->himlNormal = himlNew;
if (himlNew)
ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
&infoPtr->normalImageHeight);
else
{
infoPtr->normalImageWidth = 0;
infoPtr->normalImageHeight = 0;
}
break;
case TVSIL_STATE:
himlOld = infoPtr->himlState;
infoPtr->himlState = himlNew;
if (himlNew)
ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
&infoPtr->stateImageHeight);
else
{
infoPtr->stateImageWidth = 0;
infoPtr->stateImageHeight = 0;
}
break;
default:
ERR("unknown imagelist type %u\n", type);
}
if (oldWidth != infoPtr->normalImageWidth ||
oldHeight != infoPtr->normalImageHeight)
{
BOOL bRecalcVisible = FALSE;
if (oldHeight != infoPtr->normalImageHeight &&
!infoPtr->bHeightSet)
{
infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
bRecalcVisible = TRUE;
}
if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
infoPtr->normalImageWidth != infoPtr->uIndent)
{
infoPtr->uIndent = infoPtr->normalImageWidth;
bRecalcVisible = TRUE;
}
if (bRecalcVisible)
TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
TREEVIEW_UpdateScrollBars(infoPtr);
}
TREEVIEW_Invalidate(infoPtr, NULL);
return (LRESULT)himlOld;
}
static LRESULT
TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
{
INT prevHeight = infoPtr->uItemHeight;
TRACE("new=%d, old=%d\n", newHeight, prevHeight);
if (newHeight == -1)
{
infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
infoPtr->bHeightSet = FALSE;
}
else
{
if (newHeight == 0) newHeight = 1;
infoPtr->uItemHeight = newHeight;
infoPtr->bHeightSet = TRUE;
}
/* Round down, unless we support odd ("non even") heights. */
if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT) && infoPtr->uItemHeight != 1)
{
infoPtr->uItemHeight &= ~1;
TRACE("after rounding=%d\n", infoPtr->uItemHeight);
}
if (infoPtr->uItemHeight != prevHeight)
{
TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL);
}
return prevHeight;
}
static LRESULT
TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
return infoPtr->uItemHeight;
}
static LRESULT
TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
{
TRACE("%p\n", infoPtr->hFont);
return (LRESULT)infoPtr->hFont;
}
static INT CALLBACK
TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
{
(void)unused;
((TREEVIEW_ITEM *)pItem)->textWidth = 0;
return 1;
}
static LRESULT
TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
{
UINT uHeight = infoPtr->uItemHeight;
TRACE("%p %i\n", hFont, bRedraw);
infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
DeleteObject(infoPtr->hBoldFont);
DeleteObject(infoPtr->hUnderlineFont);
DeleteObject(infoPtr->hBoldUnderlineFont);
infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
if (!infoPtr->bHeightSet)
infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
if (uHeight != infoPtr->uItemHeight)
TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
TREEVIEW_UpdateScrollBars(infoPtr);
if (bRedraw)
TREEVIEW_Invalidate(infoPtr, NULL);
return 0;
}
static LRESULT
TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
return (LRESULT)infoPtr->clrLine;
}
static LRESULT
TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
{
COLORREF prevColor = infoPtr->clrLine;
TRACE("\n");
infoPtr->clrLine = color;
return (LRESULT)prevColor;
}
static LRESULT
TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
return (LRESULT)infoPtr->clrText;
}
static LRESULT
TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
{
COLORREF prevColor = infoPtr->clrText;
TRACE("\n");
infoPtr->clrText = color;
if (infoPtr->clrText != prevColor)
TREEVIEW_Invalidate(infoPtr, NULL);
return (LRESULT)prevColor;
}
static LRESULT
TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
return (LRESULT)infoPtr->clrBk;
}
static LRESULT
TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
{
COLORREF prevColor = infoPtr->clrBk;
TRACE("\n");
infoPtr->clrBk = newColor;
if (newColor != prevColor)
TREEVIEW_Invalidate(infoPtr, NULL);
return (LRESULT)prevColor;
}
static LRESULT
TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
return (LRESULT)infoPtr->clrInsertMark;
}
static LRESULT
TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
{
COLORREF prevColor = infoPtr->clrInsertMark;
TRACE("0x%08x\n", color);
infoPtr->clrInsertMark = color;
return (LRESULT)prevColor;
}
static LRESULT
TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
{
TRACE("%d %p\n", wParam, item);
if (!TREEVIEW_ValidItem(infoPtr, item))
return 0;
infoPtr->insertBeforeorAfter = wParam;
infoPtr->insertMarkItem = item;
TREEVIEW_Invalidate(infoPtr, NULL);
return 1;
}
/************************************************************************
* Some serious braindamage here. lParam is a pointer to both the
* input HTREEITEM and the output RECT.
*/
static LRESULT
TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
{
TREEVIEW_ITEM *item;
const HTREEITEM *pItem = (HTREEITEM *)lpRect;
TRACE("\n");
if (pItem == NULL)
return FALSE;
item = *pItem;
if (!TREEVIEW_ValidItem(infoPtr, item) || !ISVISIBLE(item))
return FALSE;
/*
* If wParam is TRUE return the text size otherwise return
* the whole item size
*/
if (fTextRect)
{
/* Windows does not send TVN_GETDISPINFO here. */
lpRect->top = item->rect.top;
lpRect->bottom = item->rect.bottom;
lpRect->left = item->textOffset;
if (!item->textWidth)
TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
lpRect->right = item->textOffset + item->textWidth + 4;
}
else
{
*lpRect = item->rect;
}
TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
return TRUE;
}
static inline LRESULT
TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
{
/* Surprise! This does not take integral height into account. */
TRACE("client=%d, item=%d\n", infoPtr->clientHeight, infoPtr->uItemHeight);
return infoPtr->clientHeight / infoPtr->uItemHeight;
}
static LRESULT
TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
{
TREEVIEW_ITEM *item = tvItem->hItem;
if (!TREEVIEW_ValidItem(infoPtr, item))
{
BOOL valid_item = FALSE;
if (!item) return FALSE;
__TRY
{
infoPtr = item->infoPtr;
TRACE("got item from different tree %p, called from %p\n", item->infoPtr, infoPtr);
valid_item = TREEVIEW_ValidItem(infoPtr, item);
}
__EXCEPT_PAGE_FAULT
{
}
__ENDTRY
if (!valid_item) return FALSE;
}
TREEVIEW_UpdateDispInfo(infoPtr, item, tvItem->mask);
if (tvItem->mask & TVIF_CHILDREN)
{
if (item->cChildren==I_CHILDRENCALLBACK)
FIXME("I_CHILDRENCALLBACK not supported\n");
tvItem->cChildren = item->cChildren;
}
if (tvItem->mask & TVIF_HANDLE)
tvItem->hItem = item;
if (tvItem->mask & TVIF_IMAGE)
tvItem->iImage = item->iImage;
if (tvItem->mask & TVIF_INTEGRAL)
tvItem->iIntegral = item->iIntegral;
/* undocumented: (mask & TVIF_PARAM) ignored and lParam is always set */
tvItem->lParam = item->lParam;
if (tvItem->mask & TVIF_SELECTEDIMAGE)
tvItem->iSelectedImage = item->iSelectedImage;
if (tvItem->mask & TVIF_EXPANDEDIMAGE)
tvItem->iExpandedImage = item->iExpandedImage;
/* undocumented: stateMask and (state & TVIF_STATE) ignored, so state is always set */
tvItem->state = item->state;
if (tvItem->mask & TVIF_TEXT)
{
if (item->pszText == NULL)
{
if (tvItem->cchTextMax > 0)
tvItem->pszText[0] = '\0';
}
else if (isW)
{
if (item->pszText == LPSTR_TEXTCALLBACKW)
{
tvItem->pszText = LPSTR_TEXTCALLBACKW;
FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
}
else
{
lstrcpynW(tvItem->pszText, item->pszText, tvItem->cchTextMax);
}
}
else
{
if (item->pszText == LPSTR_TEXTCALLBACKW)
{
tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
}
else
{
WideCharToMultiByte(CP_ACP, 0, item->pszText, -1,
(LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
}
}
}
if (tvItem->mask & TVIF_STATEEX)
{
FIXME("Extended item state not supported, returning 0.\n");
tvItem->uStateEx = 0;
}
TRACE("item <%p>, txt %p, img %d, mask 0x%x\n",
item, tvItem->pszText, tvItem->iImage, tvItem->mask);
return TRUE;
}
/* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
* which is wrong. */
static LRESULT
TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
{
TREEVIEW_ITEM *item;
TREEVIEW_ITEM originalItem;
item = tvItem->hItem;
TRACE("item %d, mask 0x%x\n", TREEVIEW_GetItemIndex(infoPtr, item),
tvItem->mask);
if (!TREEVIEW_ValidItem(infoPtr, item))
return FALSE;
/* store the original item values */
originalItem = *item;
if (!TREEVIEW_DoSetItemT(infoPtr, item, tvItem, isW))
return FALSE;
/* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
if ((tvItem->mask & TVIF_TEXT
|| (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
&& ISVISIBLE(item))
{
TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_TEXT);
TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
}
if (tvItem->mask != 0 && ISVISIBLE(item))
{
/* The refresh updates everything, but we can't wait until then. */
TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
/* if any of the item's values changed and it's not a callback, redraw the item */
if (item_changed(&originalItem, item, tvItem))
{
if (tvItem->mask & TVIF_INTEGRAL)
{
TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL);
}
else
{
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, item);
}
}
}
return TRUE;
}
static LRESULT
TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM item, UINT mask)
{
TRACE("\n");
if (!item || !TREEVIEW_ValidItem(infoPtr, item))
return 0;
return (item->state & mask);
}
static LRESULT
TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM item)
{
TREEVIEW_ITEM *retval;
retval = 0;
/* handle all the global data here */
switch (which)
{
case TVGN_CHILD: /* Special case: child of 0 is root */
if (item)
break;
/* fall through */
case TVGN_ROOT:
retval = infoPtr->root->firstChild;
break;
case TVGN_CARET:
retval = infoPtr->selectedItem;
break;
case TVGN_FIRSTVISIBLE:
retval = infoPtr->firstVisible;
break;
case TVGN_DROPHILITE:
retval = infoPtr->dropItem;
break;
case TVGN_LASTVISIBLE:
retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
break;
}
if (retval)
{
TRACE("flags:0x%x, returns %p\n", which, retval);
return (LRESULT)retval;
}
if (item == TVI_ROOT) item = infoPtr->root;
if (!TREEVIEW_ValidItem(infoPtr, item))
return FALSE;
switch (which)
{
case TVGN_NEXT:
retval = item->nextSibling;
break;
case TVGN_PREVIOUS:
retval = item->prevSibling;
break;
case TVGN_PARENT:
retval = (item->parent != infoPtr->root) ? item->parent : NULL;
break;
case TVGN_CHILD:
retval = item->firstChild;
break;
case TVGN_NEXTVISIBLE:
retval = TREEVIEW_GetNextListItem(infoPtr, item);
break;
case TVGN_PREVIOUSVISIBLE:
retval = TREEVIEW_GetPrevListItem(infoPtr, item);
break;
default:
TRACE("Unknown msg 0x%x, item %p\n", which, item);
break;
}
TRACE("flags: 0x%x, item %p;returns %p\n", which, item, retval);
return (LRESULT)retval;
}
static LRESULT
TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
{
TRACE(" %d\n", infoPtr->uNumItems);
return (LRESULT)infoPtr->uNumItems;
}
static VOID
TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
if (infoPtr->dwStyle & TVS_CHECKBOXES)
{
static const unsigned int state_table[] = { 0, 2, 1 };
unsigned int state;
state = STATEIMAGEINDEX(item->state);
TRACE("state: 0x%x\n", state);
item->state &= ~TVIS_STATEIMAGEMASK;
if (state < 3)
state = state_table[state];
item->state |= INDEXTOSTATEIMAGEMASK(state);
TRACE("state: 0x%x\n", state);
TREEVIEW_Invalidate(infoPtr, item);
}
}
/* Painting *************************************************************/
/* Draw the lines and expand button for an item. Also draws one section
* of the line from item's parent to item's parent's next sibling. */
static void
TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
{
LONG centerx, centery;
BOOL lar = ((infoPtr->dwStyle
& (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
> TVS_LINESATROOT);
HBRUSH hbr, hbrOld;
COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
if (!lar && item->iLevel == 0)
return;
hbr = CreateSolidBrush(clrBk);
hbrOld = SelectObject(hdc, hbr);
centerx = (item->linesOffset + item->stateOffset) / 2;
centery = (item->rect.top + item->rect.bottom) / 2;
if (infoPtr->dwStyle & TVS_HASLINES)
{
HPEN hOldPen, hNewPen;
HTREEITEM parent;
LOGBRUSH lb;
/* Get a dotted grey pen */
lb.lbStyle = BS_SOLID;
lb.lbColor = GETLINECOLOR(infoPtr->clrLine);
hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
hOldPen = SelectObject(hdc, hNewPen);
/* Make sure the center is on a dot (using +2 instead
* of +1 gives us pixel-by-pixel compat with native) */
centery = (centery + 2) & ~1;
MoveToEx(hdc, item->stateOffset, centery, NULL);
LineTo(hdc, centerx - 1, centery);
if (item->prevSibling || item->parent != infoPtr->root)
{
MoveToEx(hdc, centerx, item->rect.top, NULL);
LineTo(hdc, centerx, centery);
}
if (item->nextSibling)
{
MoveToEx(hdc, centerx, centery, NULL);
LineTo(hdc, centerx, item->rect.bottom + 1);
}
/* Draw the line from our parent to its next sibling. */
parent = item->parent;
while (parent != infoPtr->root)
{
int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
if (parent->nextSibling
/* skip top-levels unless TVS_LINESATROOT */
&& parent->stateOffset > parent->linesOffset)
{
MoveToEx(hdc, pcenterx, item->rect.top, NULL);
LineTo(hdc, pcenterx, item->rect.bottom + 1);
}
parent = parent->parent;
}
SelectObject(hdc, hOldPen);
DeleteObject(hNewPen);
}
/*
* Display the (+/-) signs
*/
if (infoPtr->dwStyle & TVS_HASBUTTONS)
{
if (item->cChildren)
{
HTHEME theme = GetWindowTheme(infoPtr->hwnd);
if (theme)
{
RECT glyphRect = item->rect;
glyphRect.left = item->linesOffset;
glyphRect.right = item->stateOffset;
DrawThemeBackground (theme, hdc, TVP_GLYPH,
(item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
&glyphRect, NULL);
}
else
{
LONG height = item->rect.bottom - item->rect.top;
LONG width = item->stateOffset - item->linesOffset;
LONG rectsize = min(height, width) / 4;
/* plussize = ceil(rectsize * 3/4) */
LONG plussize = (rectsize + 1) * 3 / 4;
HPEN new_pen = CreatePen(PS_SOLID, 0, GETLINECOLOR(infoPtr->clrLine));
HPEN old_pen = SelectObject(hdc, new_pen);
Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
centerx + rectsize + 2, centery + rectsize + 2);
SelectObject(hdc, old_pen);
DeleteObject(new_pen);
/* draw +/- signs with current text color */
new_pen = CreatePen(PS_SOLID, 0, GETTXTCOLOR(infoPtr->clrText));
old_pen = SelectObject(hdc, new_pen);
if (height < 18 || width < 18)
{
MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
LineTo(hdc, centerx + plussize, centery);
if (!(item->state & TVIS_EXPANDED) ||
(item->state & TVIS_EXPANDPARTIAL))
{
MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
LineTo(hdc, centerx, centery + plussize);
}
}
else
{
Rectangle(hdc, centerx - plussize + 1, centery - 1,
centerx + plussize, centery + 2);
if (!(item->state & TVIS_EXPANDED) ||
(item->state & TVIS_EXPANDPARTIAL))
{
Rectangle(hdc, centerx - 1, centery - plussize + 1,
centerx + 2, centery + plussize);
SetPixel(hdc, centerx - 1, centery, clrBk);
SetPixel(hdc, centerx + 1, centery, clrBk);
}
}
SelectObject(hdc, old_pen);
DeleteObject(new_pen);
}
}
}
SelectObject(hdc, hbrOld);
DeleteObject(hbr);
}
static void
TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
{
INT cditem;
HFONT hOldFont;
COLORREF oldTextColor, oldTextBkColor;
int centery;
BOOL inFocus = (GetFocus() == infoPtr->hwnd);
NMTVCUSTOMDRAW nmcdhdr;
TREEVIEW_UpdateDispInfo(infoPtr, item, CALLBACK_MASK_ALL);
/* - If item is drop target or it is selected and window is in focus -
* use blue background (COLOR_HIGHLIGHT).
* - If item is selected, window is not in focus, but it has style
* TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
* - Otherwise - use background color
*/
if ((item->state & TVIS_DROPHILITED) || ((item == infoPtr->focusedItem) && !(item->state & TVIS_SELECTED)) ||
((item->state & TVIS_SELECTED) && (!infoPtr->focusedItem || item == infoPtr->focusedItem) &&
(inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
{
if ((item->state & TVIS_DROPHILITED) || inFocus)
{
nmcdhdr.clrTextBk = comctl32_color.clrHighlight;
nmcdhdr.clrText = comctl32_color.clrHighlightText;
}
else
{
nmcdhdr.clrTextBk = comctl32_color.clrBtnFace;
nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
}
}
else
{
nmcdhdr.clrTextBk = GETBKCOLOR(infoPtr->clrBk);
if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
nmcdhdr.clrText = comctl32_color.clrHighlight;
else
nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
}
hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
/* The custom draw handler can query the text rectangle,
* so get ready. */
/* should already be known, set to 0 when changed */
if (!item->textWidth)
TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
cditem = 0;
if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
{
cditem = TREEVIEW_SendCustomDrawItemNotify
(infoPtr, hdc, item, CDDS_ITEMPREPAINT, &nmcdhdr);
TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
if (cditem & CDRF_SKIPDEFAULT)
{
SelectObject(hdc, hOldFont);
return;
}
}
if (cditem & CDRF_NEWFONT)
TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
if (TREEVIEW_IsFullRowSelect(infoPtr))
{
HBRUSH brush = CreateSolidBrush(nmcdhdr.clrTextBk);
FillRect(hdc, &item->rect, brush);
DeleteObject(brush);
}
TREEVIEW_DrawItemLines(infoPtr, hdc, item);
/* reset colors. Custom draw handler can change them */
SetTextColor(hdc, nmcdhdr.clrText);
SetBkColor(hdc, nmcdhdr.clrTextBk);
centery = (item->rect.top + item->rect.bottom) / 2;
/*
* Display the images associated with this item
*/
{
INT imageIndex;
/* State images are displayed to the left of the Normal image
* image number is in state; zero should be `display no image'.
*/
imageIndex = STATEIMAGEINDEX(item->state);
if (infoPtr->himlState && imageIndex)
{
ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
item->stateOffset,
centery - infoPtr->stateImageHeight / 2,
ILD_NORMAL);
}
/* Now, draw the normal image; can be either selected,
* non-selected or expanded image.
*/
if ((item->state & TVIS_SELECTED) && (item->iSelectedImage >= 0))
{
/* The item is currently selected */
imageIndex = item->iSelectedImage;
}
else if ((item->state & TVIS_EXPANDED) && (item->iExpandedImage != (WORD)I_IMAGENONE))
{
/* The item is currently not selected but expanded */
imageIndex = item->iExpandedImage;
}
else
{
/* The item is not selected and not expanded */
imageIndex = item->iImage;
}
if (infoPtr->himlNormal)
{
UINT style = item->state & TVIS_CUT ? ILD_SELECTED : ILD_NORMAL;
style |= item->state & TVIS_OVERLAYMASK;
ImageList_DrawEx(infoPtr->himlNormal, imageIndex, hdc,
item->imageOffset, centery - infoPtr->normalImageHeight / 2,
0, 0, infoPtr->clrBk, item->state & TVIS_CUT ? GETBKCOLOR(infoPtr->clrBk) : CLR_DEFAULT,
style);
}
}
/*
* Display the text associated with this item
*/
/* Don't paint item's text if it's being edited */
if (!infoPtr->hwndEdit || (infoPtr->selectedItem != item))
{
if (item->pszText)
{
RECT rcText;
UINT align;
SIZE sz;
rcText.top = item->rect.top;
rcText.bottom = item->rect.bottom;
rcText.left = item->textOffset;
rcText.right = rcText.left + item->textWidth + 4;
TRACE("drawing text %s at (%s)\n",
debugstr_w(item->pszText), wine_dbgstr_rect(&rcText));
/* Draw it */
GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
align = SetTextAlign(hdc, TA_LEFT | TA_TOP);
ExtTextOutW(hdc, rcText.left + 2, (rcText.top + rcText.bottom - sz.cy) / 2,
ETO_CLIPPED | ETO_OPAQUE,
&rcText,
item->pszText,
lstrlenW(item->pszText),
NULL);
SetTextAlign(hdc, align);
/* Draw focus box around the selected item */
if ((item == infoPtr->selectedItem) && inFocus)
{
DrawFocusRect(hdc,&rcText);
}
}
}
/* Draw insertion mark if necessary */
if (infoPtr->insertMarkItem)
TRACE("item:%d,mark:%p\n",
TREEVIEW_GetItemIndex(infoPtr, item),
infoPtr->insertMarkItem);
if (item == infoPtr->insertMarkItem)
{
HPEN hNewPen, hOldPen;
int offset;
int left, right;
hNewPen = CreatePen(PS_SOLID, 2, GETINSCOLOR(infoPtr->clrInsertMark));
hOldPen = SelectObject(hdc, hNewPen);
if (infoPtr->insertBeforeorAfter)
offset = item->rect.bottom - 1;
else
offset = item->rect.top + 1;
left = item->textOffset - 2;
right = item->textOffset + item->textWidth + 2;
MoveToEx(hdc, left, offset - 3, NULL);
LineTo(hdc, left, offset + 4);
MoveToEx(hdc, left, offset, NULL);
LineTo(hdc, right + 1, offset);
MoveToEx(hdc, right, offset + 3, NULL);
LineTo(hdc, right, offset - 4);
SelectObject(hdc, hOldPen);
DeleteObject(hNewPen);
}
/* Restore the hdc state */
SetTextColor(hdc, oldTextColor);
SetBkColor(hdc, oldTextBkColor);
SelectObject(hdc, hOldFont);
if (cditem & CDRF_NOTIFYPOSTPAINT)
{
cditem = TREEVIEW_SendCustomDrawItemNotify
(infoPtr, hdc, item, CDDS_ITEMPOSTPAINT, &nmcdhdr);
TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
}
}
/* Computes treeHeight and treeWidth and updates the scroll bars.
*/
static void
TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
{
TREEVIEW_ITEM *item;
HWND hwnd = infoPtr->hwnd;
BOOL vert = FALSE;
BOOL horz = FALSE;
SCROLLINFO si;
LONG scrollX = infoPtr->scrollX;
infoPtr->treeWidth = 0;
infoPtr->treeHeight = 0;
/* We iterate through all visible items in order to get the tree height
* and width */
item = infoPtr->root->firstChild;
while (item != NULL)
{
if (ISVISIBLE(item))
{
/* actually we draw text at textOffset + 2 */
if (2+item->textOffset+item->textWidth > infoPtr->treeWidth)
infoPtr->treeWidth = item->textOffset+item->textWidth+2;
/* This is scroll-adjusted, but we fix this below. */
infoPtr->treeHeight = item->rect.bottom;
}
item = TREEVIEW_GetNextListItem(infoPtr, item);
}
/* Fix the scroll adjusted treeHeight and treeWidth. */
if (infoPtr->root->firstChild)
infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
infoPtr->treeWidth += infoPtr->scrollX;
if (infoPtr->dwStyle & TVS_NOSCROLL) return;
/* Adding one scroll bar may take up enough space that it forces us
* to add the other as well. */
if (infoPtr->treeHeight > infoPtr->clientHeight)
{
vert = TRUE;
if (infoPtr->treeWidth
> infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
horz = TRUE;
}
else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
horz = TRUE;
if (!vert && horz && infoPtr->treeHeight
> infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
vert = TRUE;
if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
si.cbSize = sizeof(SCROLLINFO);
si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
si.nMin = 0;
if (vert)
{
si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
if ( si.nPage && NULL != infoPtr->firstVisible)
{
si.nPos = infoPtr->firstVisible->visibleOrder;
si.nMax = infoPtr->maxVisibleOrder - 1;
SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
if (!(infoPtr->uInternalStatus & TV_VSCROLL))
ShowScrollBar(hwnd, SB_VERT, TRUE);
infoPtr->uInternalStatus |= TV_VSCROLL;
}
else
{
if (infoPtr->uInternalStatus & TV_VSCROLL)
ShowScrollBar(hwnd, SB_VERT, FALSE);
infoPtr->uInternalStatus &= ~TV_VSCROLL;
}
}
else
{
if (infoPtr->uInternalStatus & TV_VSCROLL)
ShowScrollBar(hwnd, SB_VERT, FALSE);
infoPtr->uInternalStatus &= ~TV_VSCROLL;
}
if (horz)
{
si.nPage = infoPtr->clientWidth;
si.nPos = infoPtr->scrollX;
si.nMax = infoPtr->treeWidth - 1;
if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
{
si.nPos = si.nMax - max( si.nPage-1, 0 );
scrollX = si.nPos;
}
if (!(infoPtr->uInternalStatus & TV_HSCROLL))
ShowScrollBar(hwnd, SB_HORZ, TRUE);
infoPtr->uInternalStatus |= TV_HSCROLL;
SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
TREEVIEW_HScroll(infoPtr,
MAKEWPARAM(SB_THUMBPOSITION, scrollX));
}
else
{
if (infoPtr->uInternalStatus & TV_HSCROLL)
ShowScrollBar(hwnd, SB_HORZ, FALSE);
infoPtr->uInternalStatus &= ~TV_HSCROLL;
scrollX = 0;
if (infoPtr->scrollX != 0)
{
TREEVIEW_HScroll(infoPtr,
MAKEWPARAM(SB_THUMBPOSITION, scrollX));
}
}
if (!horz)
infoPtr->uInternalStatus &= ~TV_HSCROLL;
}
static void
TREEVIEW_FillBkgnd(const TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
{
HBRUSH hBrush;
COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
hBrush = CreateSolidBrush(clrBk);
FillRect(hdc, rc, hBrush);
DeleteObject(hBrush);
}
/* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
static LRESULT
TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hdc)
{
RECT rect;
TRACE("%p\n", infoPtr);
GetClientRect(infoPtr->hwnd, &rect);
TREEVIEW_FillBkgnd(infoPtr, hdc, &rect);
return 1;
}
static void
TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
{
HWND hwnd = infoPtr->hwnd;
RECT rect = *rc;
TREEVIEW_ITEM *item;
if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
{
TRACE("empty window\n");
return;
}
infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
hdc, rect);
if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
{
ReleaseDC(hwnd, hdc);
return;
}
for (item = infoPtr->root->firstChild;
item != NULL;
item = TREEVIEW_GetNextListItem(infoPtr, item))
{
if (ISVISIBLE(item))
{
/* Avoid unneeded calculations */
if (item->rect.top > rect.bottom)
break;
if (item->rect.bottom < rect.top)
continue;
TREEVIEW_DrawItem(infoPtr, hdc, item);
}
}
//
// FIXME: This is correct, but is causes and infinite loop of WM_PAINT
// messages, resulting in continuous painting of the scroll bar in reactos.
// Comment out until the real bug is found. CORE-4912
//
#ifndef __REACTOS__
TREEVIEW_UpdateScrollBars(infoPtr);
#endif
if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
infoPtr->cdmode =
TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
}
static inline void
TREEVIEW_InvalidateItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
{
if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
}
static void
TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
{
if (item)
InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
else
InvalidateRect(infoPtr->hwnd, NULL, TRUE);
}
static void
TREEVIEW_InitCheckboxes(TREEVIEW_INFO *infoPtr)
{
RECT rc;
HBITMAP hbm, hbmOld;
HDC hdc, hdcScreen;
int nIndex;
infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
hdcScreen = GetDC(0);
hdc = CreateCompatibleDC(hdcScreen);
hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
hbmOld = SelectObject(hdc, hbm);
SetRect(&rc, 0, 0, 48, 16);
FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
SetRect(&rc, 18, 2, 30, 14);
DrawFrameControl(hdc, &rc, DFC_BUTTON,
DFCS_BUTTONCHECK|DFCS_FLAT);
SetRect(&rc, 34, 2, 46, 14);
DrawFrameControl(hdc, &rc, DFC_BUTTON,
DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
SelectObject(hdc, hbmOld);
nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
comctl32_color.clrWindow);
TRACE("checkbox index %d\n", nIndex);
DeleteObject(hbm);
DeleteDC(hdc);
ReleaseDC(0, hdcScreen);
infoPtr->stateImageWidth = 16;
infoPtr->stateImageHeight = 16;
}
static void
TREEVIEW_ResetImageStateIndex(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
TREEVIEW_ITEM *child = item->firstChild;
item->state &= ~TVIS_STATEIMAGEMASK;
item->state |= INDEXTOSTATEIMAGEMASK(1);
while (child)
{
TREEVIEW_ITEM *next = child->nextSibling;
TREEVIEW_ResetImageStateIndex(infoPtr, child);
child = next;
}
}
static LRESULT
TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, HDC hdc_ref)
{
HDC hdc;
PAINTSTRUCT ps;
RECT rc;
TRACE("(%p %p)\n", infoPtr, hdc_ref);
if ((infoPtr->dwStyle & TVS_CHECKBOXES) && !infoPtr->himlState)
{
TREEVIEW_InitCheckboxes(infoPtr);
TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL);
}
if (hdc_ref)
{
hdc = hdc_ref;
GetClientRect(infoPtr->hwnd, &rc);
TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
}
else
{
hdc = BeginPaint(infoPtr->hwnd, &ps);
rc = ps.rcPaint;
if(ps.fErase)
TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
}
if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
TREEVIEW_Refresh(infoPtr, hdc, &rc);
if (!hdc_ref)
EndPaint(infoPtr->hwnd, &ps);
return 0;
}
static LRESULT
TREEVIEW_PrintClient(TREEVIEW_INFO *infoPtr, HDC hdc, DWORD options)
{
FIXME("Partial Stub: (hdc=%p options=0x%08x)\n", hdc, options);
if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwnd))
return 0;
if (options & PRF_ERASEBKGND)
TREEVIEW_EraseBackground(infoPtr, hdc);
if (options & PRF_CLIENT)
{
RECT rc;
GetClientRect(infoPtr->hwnd, &rc);
TREEVIEW_Refresh(infoPtr, hdc, &rc);
}
return 0;
}
/* Sorting **************************************************************/
/***************************************************************************
* Forward the DPA local callback to the treeview owner callback
*/
static INT WINAPI
TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
const TVSORTCB *pCallBackSort)
{
/* Forward the call to the client-defined callback */
return pCallBackSort->lpfnCompare(first->lParam,
second->lParam,
pCallBackSort->lParam);
}
/***************************************************************************
* Treeview native sort routine: sort on item text.
*/
static INT WINAPI
TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
const TREEVIEW_INFO *infoPtr)
{
TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
if(first->pszText && second->pszText)
return lstrcmpiW(first->pszText, second->pszText);
else if(first->pszText)
return -1;
else if(second->pszText)
return 1;
else
return 0;
}
/* Returns the number of physical children belonging to item. */
static INT
TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
{
INT cChildren = 0;
HTREEITEM hti;
for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
cChildren++;
return cChildren;
}
/* Returns a DPA containing a pointer to each physical child of item in
* sibling order. If item has no children, an empty DPA is returned. */
static HDPA
TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
{
HTREEITEM child;
HDPA list = DPA_Create(8);
if (list == 0) return NULL;
for (child = item->firstChild; child != NULL; child = child->nextSibling)
{
if (DPA_InsertPtr(list, INT_MAX, child) == -1)
{
DPA_Destroy(list);
return NULL;
}
}
return list;
}
/***************************************************************************
* Setup the treeview structure with regards of the sort method
* and sort the children of the TV item specified in lParam
* fRecurse: currently unused. Should be zero.
* parent: if pSort!=NULL, should equal pSort->hParent.
* otherwise, item which child items are to be sorted.
* pSort: sort method info. if NULL, sort on item text.
* if non-NULL, sort on item's lParam content, and let the
* application decide what that means. See also TVM_SORTCHILDRENCB.
*/
static LRESULT
TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
LPTVSORTCB pSort)
{
INT cChildren;
PFNDPACOMPARE pfnCompare;
LPARAM lpCompare;
/* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
if (parent == TVI_ROOT || parent == NULL)
parent = infoPtr->root;
/* Check for a valid handle to the parent item */
if (!TREEVIEW_ValidItem(infoPtr, parent))
{
ERR("invalid item hParent=%p\n", parent);
return FALSE;
}
if (pSort)
{
pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
lpCompare = (LPARAM)pSort;
}
else
{
pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
lpCompare = (LPARAM)infoPtr;
}
cChildren = TREEVIEW_CountChildren(parent);
/* Make sure there is something to sort */
if (cChildren > 1)
{
/* TREEVIEW_ITEM rechaining */
INT count = 0;
HTREEITEM item = 0;
HTREEITEM nextItem = 0;
HTREEITEM prevItem = 0;
HDPA sortList = TREEVIEW_BuildChildDPA(parent);
if (sortList == NULL)
return FALSE;
/* let DPA sort the list */
DPA_Sort(sortList, pfnCompare, lpCompare);
/* The order of DPA entries has been changed, so fixup the
* nextSibling and prevSibling pointers. */
item = DPA_GetPtr(sortList, count++);
while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
{
/* link the two current item together */
item->nextSibling = nextItem;
nextItem->prevSibling = item;
if (prevItem == NULL)
{
/* this is the first item, update the parent */
parent->firstChild = item;
item->prevSibling = NULL;
}
else
{
/* fix the back chaining */
item->prevSibling = prevItem;
}
/* get ready for the next one */
prevItem = item;
item = nextItem;
}
/* the last item is pointed to by item and never has a sibling */
item->nextSibling = NULL;
parent->lastChild = item;
DPA_Destroy(sortList);
TREEVIEW_VerifyTree(infoPtr);
if (parent->state & TVIS_EXPANDED)
{
int visOrder = infoPtr->firstVisible->visibleOrder;
if (parent == infoPtr->root)
TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
else
TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
{
TREEVIEW_ITEM *item;
for (item = infoPtr->root->firstChild; item != NULL;
item = TREEVIEW_GetNextListItem(infoPtr, item))
{
if (item->visibleOrder == visOrder)
break;
}
if (!item) item = parent->firstChild;
TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
}
TREEVIEW_Invalidate(infoPtr, NULL);
}
return TRUE;
}
return FALSE;
}
/***************************************************************************
* Setup the treeview structure with regards of the sort method
* and sort the children of the TV item specified in lParam
*/
static LRESULT
TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
{
return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
}
/***************************************************************************
* Sort the children of the TV item specified in lParam.
*/
static LRESULT
TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
{
return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
}
/* Expansion/Collapse ***************************************************/
static BOOL
TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
UINT action)
{
return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
| TVIF_IMAGE | TVIF_SELECTEDIMAGE,
0, item);
}
static VOID
TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
UINT action)
{
TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
| TVIF_IMAGE | TVIF_SELECTEDIMAGE,
0, item);
}
/* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
* bRemoveChildren corresponds to TVE_COLLAPSERESET. */
static BOOL
TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
BOOL bRemoveChildren, BOOL bUser)
{
UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
BOOL bSetSelection, bSetFirstVisible;
RECT scrollRect;
LONG scrollDist = 0;
TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
BOOL wasExpanded;
TRACE("TVE_COLLAPSE %p %s\n", item, TREEVIEW_ItemName(item));
if (!TREEVIEW_HasChildren(infoPtr, item))
return FALSE;
if (bUser)
TREEVIEW_SendExpanding(infoPtr, item, action);
if (item->firstChild == NULL)
return FALSE;
wasExpanded = (item->state & TVIS_EXPANDED) != 0;
item->state &= ~TVIS_EXPANDED;
if (wasExpanded && bUser)
TREEVIEW_SendExpanded(infoPtr, item, action);
bSetSelection = (infoPtr->selectedItem != NULL
&& TREEVIEW_IsChildOf(item, infoPtr->selectedItem));
bSetFirstVisible = (infoPtr->firstVisible != NULL
&& TREEVIEW_IsChildOf(item, infoPtr->firstVisible));
tmpItem = item;
while (tmpItem)
{
if (tmpItem->nextSibling)
{
nextItem = tmpItem->nextSibling;
break;
}
tmpItem = tmpItem->parent;
}
if (nextItem)
scrollDist = nextItem->rect.top;
if (bRemoveChildren)
{
INT old_cChildren = item->cChildren;
TRACE("TVE_COLLAPSERESET\n");
item->state &= ~TVIS_EXPANDEDONCE;
TREEVIEW_RemoveAllChildren(infoPtr, item);
item->cChildren = old_cChildren;
}
if (!wasExpanded)
return FALSE;
if (item->firstChild)
{
TREEVIEW_ITEM *i, *sibling;
sibling = TREEVIEW_GetNextListItem(infoPtr, item);
for (i = item->firstChild; i != sibling;
i = TREEVIEW_GetNextListItem(infoPtr, i))
{
i->visibleOrder = -1;
}
}
TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
if (nextItem)
scrollDist = -(scrollDist - nextItem->rect.top);
if (bSetSelection)
{
/* Don't call DoSelectItem, it sends notifications. */
if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
infoPtr->selectedItem->state &= ~TVIS_SELECTED;
item->state |= TVIS_SELECTED;
infoPtr->selectedItem = item;
}
TREEVIEW_UpdateScrollBars(infoPtr);
scrollRect.left = 0;
scrollRect.right = infoPtr->clientWidth;
scrollRect.bottom = infoPtr->clientHeight;
if (nextItem)
{
scrollRect.top = nextItem->rect.top;
ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
NULL, NULL, SW_ERASE | SW_INVALIDATE);
TREEVIEW_Invalidate(infoPtr, item);
} else {
scrollRect.top = item->rect.top;
InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
}
TREEVIEW_SetFirstVisible(infoPtr,
bSetFirstVisible ? item : infoPtr->firstVisible,
TRUE);
return wasExpanded;
}
static BOOL
TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
BOOL partial, BOOL user)
{
LONG scrollDist;
LONG orgNextTop = 0;
RECT scrollRect;
TREEVIEW_ITEM *nextItem, *tmpItem;
BOOL sendsNotifications;
TRACE("(%p, %p, partial=%d, %d)\n", infoPtr, item, partial, user);
if (!TREEVIEW_HasChildren(infoPtr, item))
return FALSE;
tmpItem = item; nextItem = NULL;
while (tmpItem)
{
if (tmpItem->nextSibling)
{
nextItem = tmpItem->nextSibling;
break;
}
tmpItem = tmpItem->parent;
}
if (nextItem)
orgNextTop = nextItem->rect.top;
TRACE("TVE_EXPAND %p %s\n", item, TREEVIEW_ItemName(item));
sendsNotifications = user || ((item->cChildren != 0) &&
!(item->state & TVIS_EXPANDEDONCE));
if (sendsNotifications)
{
if (!TREEVIEW_SendExpanding(infoPtr, item, TVE_EXPAND))
{
TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
return FALSE;
}
}
if (!item->firstChild)
return FALSE;
item->state |= TVIS_EXPANDED;
if (partial)
FIXME("TVE_EXPANDPARTIAL not implemented\n");
if (ISVISIBLE(item))
{
TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
TREEVIEW_UpdateSubTree(infoPtr, item);
TREEVIEW_UpdateScrollBars(infoPtr);
scrollRect.left = 0;
scrollRect.bottom = infoPtr->treeHeight;
scrollRect.right = infoPtr->clientWidth;
if (nextItem)
{
scrollDist = nextItem->rect.top - orgNextTop;
scrollRect.top = orgNextTop;
ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
NULL, NULL, SW_ERASE | SW_INVALIDATE);
TREEVIEW_Invalidate (infoPtr, item);
} else {
scrollRect.top = item->rect.top;
InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
}
/* Scroll up so that as many children as possible are visible.
* This fails when expanding causes an HScroll bar to appear, but we
* don't know that yet, so the last item is obscured. */
if (item->firstChild != NULL)
{
int nChildren = item->lastChild->visibleOrder
- item->firstChild->visibleOrder + 1;
int visible_pos = item->visibleOrder
- infoPtr->firstVisible->visibleOrder;
int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
if (visible_pos > 0 && nChildren > rows_below)
{
int scroll = nChildren - rows_below;
if (scroll > visible_pos)
scroll = visible_pos;
if (scroll > 0)
{
TREEVIEW_ITEM *newFirstVisible
= TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
scroll);
TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
}
}
}
}
if (sendsNotifications) {
TREEVIEW_SendExpanded(infoPtr, item, TVE_EXPAND);
item->state |= TVIS_EXPANDEDONCE;
}
return TRUE;
}
/* Handler for TVS_SINGLEEXPAND behaviour. Used on response
to mouse messages and TVM_SELECTITEM.
selection - previously selected item, used to collapse a part of a tree
item - new selected item
*/
static void TREEVIEW_SingleExpand(TREEVIEW_INFO *infoPtr,
HTREEITEM selection, HTREEITEM item)
{
TREEVIEW_ITEM *prev, *curr;
if ((infoPtr->dwStyle & TVS_SINGLEEXPAND) == 0 || infoPtr->hwndEdit || !item) return;
TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, item, 0);
/*
* Close the previous item and its ancestors as long as they are not
* ancestors of the current item
*/
for (prev = selection; prev && TREEVIEW_ValidItem(infoPtr, prev); prev = prev->parent)
{
for (curr = item; curr && TREEVIEW_ValidItem(infoPtr, curr); curr = curr->parent)
{
if (curr == prev)
goto finish;
}
TREEVIEW_Collapse(infoPtr, prev, FALSE, TRUE);
}
finish:
/*
* Expand the current item
*/
TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
}
static BOOL
TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, BOOL user)
{
TRACE("item=%p, user=%d\n", item, user);
if (item->state & TVIS_EXPANDED)
return TREEVIEW_Collapse(infoPtr, item, FALSE, user);
else
return TREEVIEW_Expand(infoPtr, item, FALSE, user);
}
static VOID
TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
for (item = item->firstChild; item != NULL; item = item->nextSibling)
{
if (TREEVIEW_HasChildren(infoPtr, item))
TREEVIEW_ExpandAll(infoPtr, item);
}
}
/* Note:If the specified item is the child of a collapsed parent item,
the parent's list of child items is (recursively) expanded to reveal the
specified item. This is mentioned for TREEVIEW_SelectItem; don't
know if it also applies here.
*/
static LRESULT
TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM item)
{
if (!TREEVIEW_ValidItem(infoPtr, item))
return 0;
TRACE("For (%s) item:%d, flags 0x%x, state:%d\n",
TREEVIEW_ItemName(item), TREEVIEW_GetItemIndex(infoPtr, item),
flag, item->state);
switch (flag & TVE_TOGGLE)
{
case TVE_COLLAPSE:
return TREEVIEW_Collapse(infoPtr, item, flag & TVE_COLLAPSERESET,
FALSE);
case TVE_EXPAND:
return TREEVIEW_Expand(infoPtr, item, flag & TVE_EXPANDPARTIAL,
FALSE);
case TVE_TOGGLE:
return TREEVIEW_Toggle(infoPtr, item, FALSE);
default:
return 0;
}
}
/* Hit-Testing **********************************************************/
static TREEVIEW_ITEM *
TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
{
TREEVIEW_ITEM *item;
LONG row;
if (!infoPtr->firstVisible)
return NULL;
row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
for (item = infoPtr->firstVisible; item != NULL;
item = TREEVIEW_GetNextListItem(infoPtr, item))
{
if (row >= item->visibleOrder
&& row < item->visibleOrder + item->iIntegral)
break;
}
return item;
}
static TREEVIEW_ITEM *
TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
{
TREEVIEW_ITEM *item;
RECT rect;
UINT status;
LONG x, y;
lpht->hItem = 0;
GetClientRect(infoPtr->hwnd, &rect);
status = 0;
x = lpht->pt.x;
y = lpht->pt.y;
if (x < rect.left)
{
status |= TVHT_TOLEFT;
}
else if (x > rect.right)
{
status |= TVHT_TORIGHT;
}
if (y < rect.top)
{
status |= TVHT_ABOVE;
}
else if (y > rect.bottom)
{
status |= TVHT_BELOW;
}
if (status)
{
lpht->flags = status;
return NULL;
}
item = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
if (!item)
{
lpht->flags = TVHT_NOWHERE;
return NULL;
}
if (!item->textWidth)
TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
if (x >= item->textOffset + item->textWidth)
{
lpht->flags = TVHT_ONITEMRIGHT;
}
else if (x >= item->textOffset)
{
lpht->flags = TVHT_ONITEMLABEL;
}
else if (x >= item->imageOffset)
{
lpht->flags = TVHT_ONITEMICON;
}
else if (x >= item->stateOffset)
{
lpht->flags = TVHT_ONITEMSTATEICON;
}
else if (x >= item->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
{
lpht->flags = TVHT_ONITEMBUTTON;
}
else
{
lpht->flags = TVHT_ONITEMINDENT;
}
lpht->hItem = item;
TRACE("(%d,%d):result 0x%x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
return item;
}
/* Item Label Editing ***************************************************/
static LRESULT
TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
{
return (LRESULT)infoPtr->hwndEdit;
}
static LRESULT CALLBACK
TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
BOOL bCancel = FALSE;
LRESULT rc;
switch (uMsg)
{
case WM_PAINT:
TRACE("WM_PAINT start\n");
rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
lParam);
TRACE("WM_PAINT done\n");
return rc;
case WM_KILLFOCUS:
if (infoPtr->bIgnoreEditKillFocus)
return TRUE;
break;
case WM_DESTROY:
{
WNDPROC editProc = infoPtr->wpEditOrig;
infoPtr->wpEditOrig = 0;
SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (DWORD_PTR)editProc);
return CallWindowProcW(editProc, hwnd, uMsg, wParam, lParam);
}
case WM_GETDLGCODE:
return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
case WM_KEYDOWN:
if (wParam == VK_ESCAPE)
{
bCancel = TRUE;
break;
}
else if (wParam == VK_RETURN)
{
break;
}
/* fall through */
default:
return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
}
/* Processing TVN_ENDLABELEDIT message could kill the focus */
/* eg. Using a messagebox */
infoPtr->bIgnoreEditKillFocus = TRUE;
TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
infoPtr->bIgnoreEditKillFocus = FALSE;
return 0;
}
/* should handle edit control messages here */
static LRESULT
TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
TRACE("code=0x%x, id=0x%x, handle=0x%lx\n", HIWORD(wParam), LOWORD(wParam), lParam);
switch (HIWORD(wParam))
{
case EN_UPDATE:
{
/*
* Adjust the edit window size
*/
WCHAR buffer[1024];
TREEVIEW_ITEM *editItem = infoPtr->editItem;
HDC hdc = GetDC(infoPtr->hwndEdit);
SIZE sz;
HFONT hFont, hOldFont = 0;
TRACE("edit=%p\n", infoPtr->hwndEdit);
if (!IsWindow(infoPtr->hwndEdit) || !hdc) return FALSE;
infoPtr->bLabelChanged = TRUE;
GetWindowTextW(infoPtr->hwndEdit, buffer, ARRAY_SIZE(buffer));
/* Select font to get the right dimension of the string */
hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
if (hFont != 0)
{
hOldFont = SelectObject(hdc, hFont);
}
if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
{
TEXTMETRICW textMetric;
/* Add Extra spacing for the next character */
GetTextMetricsW(hdc, &textMetric);
sz.cx += (textMetric.tmMaxCharWidth * 2);
sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
sz.cx = min(sz.cx,
infoPtr->clientWidth - editItem->textOffset + 2);
SetWindowPos(infoPtr->hwndEdit,
HWND_TOP,
0,
0,
sz.cx,
editItem->rect.bottom - editItem->rect.top + 3,
SWP_NOMOVE | SWP_DRAWFRAME);
}
if (hFont != 0)
{
SelectObject(hdc, hOldFont);
}
ReleaseDC(infoPtr->hwnd, hdc);
break;
}
case EN_KILLFOCUS:
/* apparently we should respect passed handle value */
if (infoPtr->hwndEdit != (HWND)lParam) return FALSE;
TREEVIEW_EndEditLabelNow(infoPtr, FALSE);
break;
default:
return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
}
return 0;
}
static HWND
TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
{
HWND hwnd = infoPtr->hwnd;
HWND hwndEdit;
SIZE sz;
HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
HDC hdc;
HFONT hOldFont=0;
TEXTMETRICW textMetric;
TRACE("%p %p\n", hwnd, hItem);
if (!(infoPtr->dwStyle & TVS_EDITLABELS))
return NULL;
if (!TREEVIEW_ValidItem(infoPtr, hItem))
return NULL;
if (infoPtr->hwndEdit)
return infoPtr->hwndEdit;
infoPtr->bLabelChanged = FALSE;
/* make edit item visible */
TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
TREEVIEW_UpdateDispInfo(infoPtr, hItem, TVIF_TEXT);
hdc = GetDC(hwnd);
/* Select the font to get appropriate metric dimensions */
if (infoPtr->hFont != 0)
{
hOldFont = SelectObject(hdc, infoPtr->hFont);
}
/* Get string length in pixels */
if (hItem->pszText)
GetTextExtentPoint32W(hdc, hItem->pszText, strlenW(hItem->pszText),
&sz);
else
GetTextExtentPoint32A(hdc, "", 0, &sz);
/* Add Extra spacing for the next character */
GetTextMetricsW(hdc, &textMetric);
sz.cx += (textMetric.tmMaxCharWidth * 2);
sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
sz.cx = min(sz.cx, infoPtr->clientWidth - hItem->textOffset + 2);
if (infoPtr->hFont != 0)
{
SelectObject(hdc, hOldFont);
}
ReleaseDC(hwnd, hdc);
infoPtr->editItem = hItem;
hwndEdit = CreateWindowExW(WS_EX_LEFT,
WC_EDITW,
0,
WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
WS_CLIPSIBLINGS | ES_WANTRETURN |
ES_LEFT, hItem->textOffset - 2,
hItem->rect.top - 1, sz.cx + 3,
hItem->rect.bottom -
hItem->rect.top + 3, hwnd, 0, hinst, 0);
/* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
infoPtr->hwndEdit = hwndEdit;
/* Get a 2D border. */
SetWindowLongW(hwndEdit, GWL_EXSTYLE,
GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
SetWindowLongW(hwndEdit, GWL_STYLE,
GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
SendMessageW(hwndEdit, WM_SETFONT,
(WPARAM)TREEVIEW_FontForItem(infoPtr, hItem), FALSE);
infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
(DWORD_PTR)
TREEVIEW_Edit_SubclassProc);
if (hItem->pszText)
SetWindowTextW(hwndEdit, hItem->pszText);
if (TREEVIEW_BeginLabelEditNotify(infoPtr, hItem))
{
DestroyWindow(hwndEdit);
infoPtr->hwndEdit = 0;
infoPtr->editItem = NULL;
return NULL;
}
SetFocus(hwndEdit);
SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
ShowWindow(hwndEdit, SW_SHOW);
return hwndEdit;
}
static LRESULT
TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
{
TREEVIEW_ITEM *editedItem = infoPtr->editItem;
NMTVDISPINFOW tvdi;
BOOL bCommit;
WCHAR tmpText[1024] = { '\0' };
WCHAR *newText = tmpText;
int iLength = 0;
if (!IsWindow(infoPtr->hwndEdit)) return FALSE;
tvdi.item.mask = 0;
tvdi.item.hItem = editedItem;
tvdi.item.state = editedItem->state;
tvdi.item.lParam = editedItem->lParam;
if (!bCancel)
{
if (!infoPtr->bNtfUnicode)
iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
else
iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
if (iLength >= 1023)
{
ERR("Insufficient space to retrieve new item label\n");
}
tvdi.item.mask = TVIF_TEXT;
tvdi.item.pszText = tmpText;
tvdi.item.cchTextMax = iLength + 1;
}
else
{
tvdi.item.pszText = NULL;
tvdi.item.cchTextMax = 0;
}
bCommit = TREEVIEW_SendRealNotify(infoPtr, TVN_ENDLABELEDITW, &tvdi.hdr);
if (!bCancel && bCommit) /* Apply the changes */
{
if (!infoPtr->bNtfUnicode)
{
DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
newText = heap_alloc(len * sizeof(WCHAR));
MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
iLength = len - 1;
}
if (strcmpW(newText, editedItem->pszText) != 0)
{
WCHAR *ptr = heap_realloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1));
if (ptr == NULL)
{
ERR("OutOfMemory, cannot allocate space for label\n");
if (newText != tmpText) heap_free(newText);
DestroyWindow(infoPtr->hwndEdit);
infoPtr->hwndEdit = 0;
infoPtr->editItem = NULL;
return FALSE;
}
else
{
editedItem->pszText = ptr;
editedItem->cchTextMax = iLength + 1;
strcpyW(editedItem->pszText, newText);
TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0);
}
}
if (newText != tmpText) heap_free(newText);
}
ShowWindow(infoPtr->hwndEdit, SW_HIDE);
DestroyWindow(infoPtr->hwndEdit);
infoPtr->hwndEdit = 0;
infoPtr->editItem = NULL;
return TRUE;
}
static LRESULT
TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
{
if (wParam != TV_EDIT_TIMER)
{
ERR("got unknown timer\n");
return 1;
}
KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
return 0;
}
/* Mouse Tracking/Drag **************************************************/
/***************************************************************************
* This is quite unusual piece of code, but that's how it's implemented in
* Windows.
*/
static LRESULT
TREEVIEW_TrackMouse(const TREEVIEW_INFO *infoPtr, POINT pt)
{
INT cxDrag = GetSystemMetrics(SM_CXDRAG);
INT cyDrag = GetSystemMetrics(SM_CYDRAG);
RECT r;
MSG msg;
r.top = pt.y - cyDrag;
r.left = pt.x - cxDrag;
r.bottom = pt.y + cyDrag;
r.right = pt.x + cxDrag;
SetCapture(infoPtr->hwnd);
while (1)
{
if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
{
if (msg.message == WM_MOUSEMOVE)
{
pt.x = (short)LOWORD(msg.lParam);
pt.y = (short)HIWORD(msg.lParam);
if (PtInRect(&r, pt))
continue;
else
{
ReleaseCapture();
return 1;
}
}
else if (msg.message >= WM_LBUTTONDOWN &&
msg.message <= WM_RBUTTONDBLCLK)
{
break;
}
DispatchMessageW(&msg);
}
if (GetCapture() != infoPtr->hwnd)
return 0;
}
ReleaseCapture();
return 0;
}
static LRESULT
TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
{
TREEVIEW_ITEM *item;
TVHITTESTINFO hit;
TRACE("\n");
SetFocus(infoPtr->hwnd);
if (infoPtr->Timer & TV_EDIT_TIMER_SET)
{
/* If there is pending 'edit label' event - kill it now */
KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
}
hit.pt.x = (short)LOWORD(lParam);
hit.pt.y = (short)HIWORD(lParam);
item = TREEVIEW_HitTest(infoPtr, &hit);
if (!item)
return 0;
TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, item));
if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
{ /* FIXME! */
switch (hit.flags)
{
case TVHT_ONITEMRIGHT:
/* FIXME: we should not have sent NM_DBLCLK in this case. */
break;
case TVHT_ONITEMINDENT:
if (!(infoPtr->dwStyle & TVS_HASLINES))
{
break;
}
else
{
int level = hit.pt.x / infoPtr->uIndent;
if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
while (item->iLevel > level)
{
item = item->parent;
}
/* fall through */
}
case TVHT_ONITEMLABEL:
case TVHT_ONITEMICON:
case TVHT_ONITEMBUTTON:
TREEVIEW_Toggle(infoPtr, item, TRUE);
break;
case TVHT_ONITEMSTATEICON:
if (infoPtr->dwStyle & TVS_CHECKBOXES)
TREEVIEW_ToggleItemState(infoPtr, item);
else
TREEVIEW_Toggle(infoPtr, item, TRUE);
break;
}
}
return TRUE;
}
static LRESULT
TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
{
BOOL do_track, do_select, bDoLabelEdit;
HWND hwnd = infoPtr->hwnd;
TVHITTESTINFO ht;
/* If Edit control is active - kill it and return.
* The best way to do it is to set focus to itself.
* Edit control subclassed procedure will automatically call
* EndEditLabelNow.
*/
if (infoPtr->hwndEdit)
{
SetFocus(hwnd);
return 0;
}
ht.pt.x = (short)LOWORD(lParam);
ht.pt.y = (short)HIWORD(lParam);
TREEVIEW_HitTest(infoPtr, &ht);
TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
/* update focusedItem and redraw both items */
if (ht.hItem)
{
BOOL do_focus;
if (TREEVIEW_IsFullRowSelect(infoPtr))
do_focus = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEM | TVHT_ONITEMRIGHT);
else
do_focus = ht.flags & TVHT_ONITEM;
if (do_focus)
{
infoPtr->focusedItem = ht.hItem;
TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
}
}
if (!(infoPtr->dwStyle & TVS_DISABLEDRAGDROP))
{
if (TREEVIEW_IsFullRowSelect(infoPtr))
do_track = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEM | TVHT_ONITEMRIGHT);
else
do_track = ht.flags & TVHT_ONITEM;
}
else
do_track = FALSE;
/*
* If the style allows editing and the node is already selected
* and the click occurred on the item label...
*/
bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
(ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
/* Send NM_CLICK right away */
if (!do_track && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
goto setfocus;
if (ht.flags & TVHT_ONITEMBUTTON)
{
TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
goto setfocus;
}
else if (do_track)
{ /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
{
TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
infoPtr->dropItem = ht.hItem;
/* clean up focusedItem as we dragged and won't select this item */
if(infoPtr->focusedItem)
{
/* refresh the item that was focused */
TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
infoPtr->focusedItem = NULL;
/* refresh the selected item to return the filled background */
TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
}
return 0;
}
}
if (do_track && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
goto setfocus;
if (TREEVIEW_IsFullRowSelect(infoPtr))
do_select = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEMICON | TVHT_ONITEMLABEL | TVHT_ONITEMRIGHT);
else
do_select = ht.flags & (TVHT_ONITEMICON | TVHT_ONITEMLABEL);
if (bDoLabelEdit)
{
if (infoPtr->Timer & TV_EDIT_TIMER_SET)
KillTimer(hwnd, TV_EDIT_TIMER);
SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
infoPtr->Timer |= TV_EDIT_TIMER_SET;
}
else if (do_select)
{
TREEVIEW_ITEM *selection = infoPtr->selectedItem;
/* Select the current item */
TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
TREEVIEW_SingleExpand(infoPtr, selection, ht.hItem);
}
else if (ht.flags & TVHT_ONITEMSTATEICON)
{
/* TVS_CHECKBOXES requires us to toggle the current state */
if (infoPtr->dwStyle & TVS_CHECKBOXES)
TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
}
setfocus:
SetFocus(hwnd);
return 0;
}
static LRESULT
TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
{
TVHITTESTINFO ht;
if (infoPtr->hwndEdit)
{
SetFocus(infoPtr->hwnd);
return 0;
}
ht.pt.x = (short)LOWORD(lParam);
ht.pt.y = (short)HIWORD(lParam);
if (TREEVIEW_HitTest(infoPtr, &ht))
{
infoPtr->focusedItem = ht.hItem;
TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
}
if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
{
if (ht.hItem)
{
TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
infoPtr->dropItem = ht.hItem;
}
}
else
{
SetFocus(infoPtr->hwnd);
if(!TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK))
{
/* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
SendMessageW(infoPtr->hwndNotify, WM_CONTEXTMENU,
(WPARAM)infoPtr->hwnd, (LPARAM)GetMessagePos());
}
}
if (ht.hItem)
{
TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
infoPtr->focusedItem = infoPtr->selectedItem;
TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
}
return 0;
}
static LRESULT
TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, LPARAM lParam)
{
TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
INT cx, cy;
HDC hdc, htopdc;
HWND hwtop;
HBITMAP hbmp, hOldbmp;
SIZE size;
RECT rc;
HFONT hOldFont;
TRACE("\n");
if (!(infoPtr->himlNormal))
return 0;
if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
return 0;
TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
hwtop = GetDesktopWindow();
htopdc = GetDC(hwtop);
hdc = CreateCompatibleDC(htopdc);
hOldFont = SelectObject(hdc, infoPtr->hFont);
if (dragItem->pszText)
GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
&size);
else
GetTextExtentPoint32A(hdc, "", 0, &size);
TRACE("%d %d %s\n", size.cx, size.cy, debugstr_w(dragItem->pszText));
hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
hOldbmp = SelectObject(hdc, hbmp);
ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
size.cx += cx;
if (cy > size.cy)
size.cy = cy;
infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
ILD_NORMAL);
/*
ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
*/
/* draw item text */
SetRect(&rc, cx, 0, size.cx, size.cy);
if (dragItem->pszText)
DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
DT_LEFT);
SelectObject(hdc, hOldFont);
SelectObject(hdc, hOldbmp);
ImageList_Add(infoPtr->dragList, hbmp, 0);
DeleteDC(hdc);
DeleteObject(hbmp);
ReleaseDC(hwtop, htopdc);
return (LRESULT)infoPtr->dragList;
}
/* Selection ************************************************************/
static LRESULT
TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
INT cause)
{
TREEVIEW_ITEM *prevSelect;
assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
TRACE("Entering item %p (%s), flag 0x%x, cause 0x%x, state 0x%x\n",
newSelect, TREEVIEW_ItemName(newSelect), action, cause,
newSelect ? newSelect->state : 0);
/* reset and redraw focusedItem if focusedItem was set so we don't */
/* have to worry about the previously focused item when we set a new one */
TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
infoPtr->focusedItem = NULL;
switch (action)
{
case TVGN_CARET|TVSI_NOSINGLEEXPAND:
FIXME("TVSI_NOSINGLEEXPAND specified.\n");
/* Fall through */
case TVGN_CARET:
prevSelect = infoPtr->selectedItem;
if (prevSelect == newSelect) {
TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
break;
}
if (TREEVIEW_SendTreeviewNotify(infoPtr,
TVN_SELCHANGINGW,
cause,
TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
prevSelect,
newSelect))
return FALSE;
if (prevSelect)
prevSelect->state &= ~TVIS_SELECTED;
if (newSelect)
newSelect->state |= TVIS_SELECTED;
infoPtr->selectedItem = newSelect;
TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
TREEVIEW_InvalidateItem(infoPtr, prevSelect);
TREEVIEW_InvalidateItem(infoPtr, newSelect);
TREEVIEW_SendTreeviewNotify(infoPtr,
TVN_SELCHANGEDW,
cause,
TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
prevSelect,
newSelect);
break;
case TVGN_DROPHILITE:
prevSelect = infoPtr->dropItem;
if (prevSelect)
prevSelect->state &= ~TVIS_DROPHILITED;
infoPtr->dropItem = newSelect;
if (newSelect)
newSelect->state |= TVIS_DROPHILITED;
TREEVIEW_Invalidate(infoPtr, prevSelect);
TREEVIEW_Invalidate(infoPtr, newSelect);
break;
case TVGN_FIRSTVISIBLE:
if (newSelect != NULL)
{
TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
TREEVIEW_Invalidate(infoPtr, NULL);
}
break;
}
TRACE("Leaving state 0x%x\n", newSelect ? newSelect->state : 0);
return TRUE;
}
/* FIXME: handle NM_KILLFOCUS etc */
static LRESULT
TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
{
TREEVIEW_ITEM *selection = infoPtr->selectedItem;
if (item && !TREEVIEW_ValidItem(infoPtr, item))
return FALSE;
if (item == infoPtr->selectedItem)
return TRUE;
TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
return FALSE;
TREEVIEW_SingleExpand(infoPtr, selection, item);
return TRUE;
}
/*************************************************************************
* TREEVIEW_ProcessLetterKeys
*
* Processes keyboard messages generated by pressing the letter keys
* on the keyboard.
* What this does is perform a case insensitive search from the
* current position with the following quirks:
* - If two chars or more are pressed in quick succession we search
* for the corresponding string (e.g. 'abc').
* - If there is a delay we wipe away the current search string and
* restart with just that char.
* - If the user keeps pressing the same character, whether slowly or
* fast, so that the search string is entirely composed of this
* character ('aaaaa' for instance), then we search for first item
* that starting with that character.
* - If the user types the above character in quick succession, then
* we must also search for the corresponding string ('aaaaa'), and
* go to that string if there is a match.
*
* RETURNS
*
* Zero.
*
* BUGS
*
* - The current implementation has a list of characters it will
* accept and it ignores everything else. In particular it will
* ignore accentuated characters which seems to match what
* Windows does. But I'm not sure it makes sense to follow
* Windows there.
* - We don't sound a beep when the search fails.
* - The search should start from the focused item, not from the selected
* item. One reason for this is to allow for multiple selections in trees.
* But currently infoPtr->focusedItem does not seem very usable.
*
* SEE ALSO
*
* TREEVIEW_ProcessLetterKeys
*/
static INT TREEVIEW_ProcessLetterKeys(TREEVIEW_INFO *infoPtr, WPARAM charCode, LPARAM keyData)
{
HTREEITEM nItem;
HTREEITEM endidx,idx;
TVITEMEXW item;
WCHAR buffer[MAX_PATH];
DWORD timestamp,elapsed;
/* simple parameter checking */
if (!charCode || !keyData) return 0;
/* only allow the valid WM_CHARs through */
if (!isalnum(charCode) &&
charCode != '.' && charCode != '`' && charCode != '!' &&
charCode != '@' && charCode != '#' && charCode != '$' &&
charCode != '%' && charCode != '^' && charCode != '&' &&
charCode != '*' && charCode != '(' && charCode != ')' &&
charCode != '-' && charCode != '_' && charCode != '+' &&
charCode != '=' && charCode != '\\'&& charCode != ']' &&
charCode != '}' && charCode != '[' && charCode != '{' &&
charCode != '/' && charCode != '?' && charCode != '>' &&
charCode != '<' && charCode != ',' && charCode != '~')
return 0;
/* compute how much time elapsed since last keypress */
timestamp = GetTickCount();
if (timestamp > infoPtr->lastKeyPressTimestamp) {
elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
} else {
elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
}
/* update the search parameters */
infoPtr->lastKeyPressTimestamp=timestamp;
if (elapsed < KEY_DELAY) {
if (infoPtr->nSearchParamLength < ARRAY_SIZE(infoPtr->szSearchParam)) {
infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
}
if (infoPtr->charCode != charCode) {
infoPtr->charCode=charCode=0;
}
} else {
infoPtr->charCode=charCode;
infoPtr->szSearchParam[0]=charCode;
infoPtr->nSearchParamLength=1;
/* Redundant with the 1 char string */
charCode=0;
}
/* and search from the current position */
nItem=NULL;
if (infoPtr->selectedItem != NULL) {
endidx=infoPtr->selectedItem;
/* if looking for single character match,
* then we must always move forward
*/
if (infoPtr->nSearchParamLength == 1)
idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
else
idx=endidx;
} else {
endidx=NULL;
idx=infoPtr->root->firstChild;
}
do {
/* At the end point, sort out wrapping */
if (idx == NULL) {
/* If endidx is null, stop at the last item (ie top to bottom) */
if (endidx == NULL)
break;
/* Otherwise, start again at the very beginning */
idx=infoPtr->root->firstChild;
/* But if we are stopping on the first child, end now! */
if (idx == endidx) break;
}
/* get item */
ZeroMemory(&item, sizeof(item));
item.mask = TVIF_TEXT;
item.hItem = idx;
item.pszText = buffer;
item.cchTextMax = sizeof(buffer);
TREEVIEW_GetItemT( infoPtr, &item, TRUE );
/* check for a match */
if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
nItem=idx;
break;
} else if ( (charCode != 0) && (nItem == NULL) &&
(nItem != infoPtr->selectedItem) &&
(strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
/* This would work but we must keep looking for a longer match */
nItem=idx;
}
idx=TREEVIEW_GetNextListItem(infoPtr,idx);
} while (idx != endidx);
if (nItem != NULL) {
if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
}
}
return 0;
}
/* Scrolling ************************************************************/
static LRESULT
TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
{
int viscount;
BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
HTREEITEM newFirstVisible = NULL;
int visible_pos = -1;
if (!TREEVIEW_ValidItem(infoPtr, item))
return FALSE;
if (!ISVISIBLE(item))
{
/* Expand parents as necessary. */
HTREEITEM parent;
/* see if we are trying to ensure that root is visible */
if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
parent = item->parent;
else
parent = item; /* this item is the topmost item */
while (parent != infoPtr->root)
{
if (!(parent->state & TVIS_EXPANDED))
TREEVIEW_Expand(infoPtr, parent, FALSE, TRUE);
parent = parent->parent;
}
}
viscount = TREEVIEW_GetVisibleCount(infoPtr);
TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
if (hasFirstVisible)
visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
if (visible_pos < 0)
{
/* item is before the start of the list: put it at the top. */
newFirstVisible = item;
}
else if (visible_pos >= viscount
/* Sometimes, before we are displayed, GVC is 0, causing us to
* spuriously scroll up. */
&& visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
{
/* item is past the end of the list. */
int scroll = visible_pos - viscount;
newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
scroll + 1);
}
if (bHScroll)
{
/* Scroll window so item's text is visible as much as possible */
/* Calculation of amount of extra space is taken from EditLabel code */
INT pos, x;
TEXTMETRICW textMetric;
HDC hdc = GetWindowDC(infoPtr->hwnd);
x = item->textWidth;
GetTextMetricsW(hdc, &textMetric);
ReleaseDC(infoPtr->hwnd, hdc);
x += (textMetric.tmMaxCharWidth * 2);
x = max(x, textMetric.tmMaxCharWidth * 3);
if (item->textOffset < 0)
pos = item->textOffset;
else if (item->textOffset + x > infoPtr->clientWidth)
{
if (x > infoPtr->clientWidth)
pos = item->textOffset;
else
pos = item->textOffset + x - infoPtr->clientWidth;
}
else
pos = 0;
TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
}
if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
{
TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
return TRUE;
}
return FALSE;
}
static VOID
TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
TREEVIEW_ITEM *newFirstVisible,
BOOL bUpdateScrollPos)
{
int gap_size;
TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
if (newFirstVisible != NULL)
{
/* Prevent an empty gap from appearing at the bottom... */
gap_size = TREEVIEW_GetVisibleCount(infoPtr)
- infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
if (gap_size > 0)
{
newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
-gap_size);
/* ... unless we just don't have enough items. */
if (newFirstVisible == NULL)
newFirstVisible = infoPtr->root->firstChild;
}
}
if (infoPtr->firstVisible != newFirstVisible)
{
if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
{
infoPtr->firstVisible = newFirstVisible;
TREEVIEW_Invalidate(infoPtr, NULL);
}
else
{
TREEVIEW_ITEM *item;
int scroll = infoPtr->uItemHeight *
(infoPtr->firstVisible->visibleOrder
- newFirstVisible->visibleOrder);
infoPtr->firstVisible = newFirstVisible;
for (item = infoPtr->root->firstChild; item != NULL;
item = TREEVIEW_GetNextListItem(infoPtr, item))
{
item->rect.top += scroll;
item->rect.bottom += scroll;
}
if (bUpdateScrollPos)
SetScrollPos(infoPtr->hwnd, SB_VERT,
newFirstVisible->visibleOrder, TRUE);
ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
}
}
}
/************************************************************************
* VScroll is always in units of visible items. i.e. we always have a
* visible item aligned to the top of the control. (Unless we have no
* items at all.)
*/
static LRESULT
TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
{
TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
TREEVIEW_ITEM *newFirstVisible = NULL;
int nScrollCode = LOWORD(wParam);
TRACE("wp %lx\n", wParam);
if (!(infoPtr->uInternalStatus & TV_VSCROLL))
return 0;
if (!oldFirstVisible)
{
assert(infoPtr->root->firstChild == NULL);
return 0;
}
switch (nScrollCode)
{
case SB_TOP:
newFirstVisible = infoPtr->root->firstChild;
break;
case SB_BOTTOM:
newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
break;
case SB_LINEUP:
newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
break;
case SB_LINEDOWN:
newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
break;
case SB_PAGEUP:
newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
-max(1, TREEVIEW_GetVisibleCount(infoPtr)));
break;
case SB_PAGEDOWN:
newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
max(1, TREEVIEW_GetVisibleCount(infoPtr)));
break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
newFirstVisible = TREEVIEW_GetListItem(infoPtr,
infoPtr->root->firstChild,
(LONG)(SHORT)HIWORD(wParam));
break;
case SB_ENDSCROLL:
return 0;
}
if (newFirstVisible != NULL)
{
if (newFirstVisible != oldFirstVisible)
TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
nScrollCode != SB_THUMBTRACK);
else if (nScrollCode == SB_THUMBPOSITION)
SetScrollPos(infoPtr->hwnd, SB_VERT,
newFirstVisible->visibleOrder, TRUE);
}
return 0;
}
static LRESULT
TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
{
int maxWidth;
int scrollX = infoPtr->scrollX;
int nScrollCode = LOWORD(wParam);
TRACE("wp %lx\n", wParam);
if (!(infoPtr->uInternalStatus & TV_HSCROLL))
return FALSE;
maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
/* shall never occur */
if (maxWidth <= 0)
{
scrollX = 0;
goto scroll;
}
switch (nScrollCode)
{
case SB_LINELEFT:
scrollX -= infoPtr->uItemHeight;
break;
case SB_LINERIGHT:
scrollX += infoPtr->uItemHeight;
break;
case SB_PAGELEFT:
scrollX -= infoPtr->clientWidth;
break;
case SB_PAGERIGHT:
scrollX += infoPtr->clientWidth;
break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
scrollX = (int)(SHORT)HIWORD(wParam);
break;
case SB_ENDSCROLL:
return 0;
}
if (scrollX > maxWidth)
scrollX = maxWidth;
else if (scrollX < 0)
scrollX = 0;
scroll:
if (scrollX != infoPtr->scrollX)
{
TREEVIEW_ITEM *item;
LONG scroll_pixels = infoPtr->scrollX - scrollX;
for (item = infoPtr->root->firstChild; item != NULL;
item = TREEVIEW_GetNextListItem(infoPtr, item))
{
item->linesOffset += scroll_pixels;
item->stateOffset += scroll_pixels;
item->imageOffset += scroll_pixels;
item->textOffset += scroll_pixels;
}
ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
infoPtr->scrollX = scrollX;
UpdateWindow(infoPtr->hwnd);
}
if (nScrollCode != SB_THUMBTRACK)
SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
return 0;
}
static LRESULT
TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
short wheelDelta;
UINT pulScrollLines = 3;
if (wParam & (MK_SHIFT | MK_CONTROL))
return DefWindowProcW(infoPtr->hwnd, WM_MOUSEWHEEL, wParam, lParam);
if (infoPtr->firstVisible == NULL)
return TRUE;
SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
wheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
/* if scrolling changes direction, ignore left overs */
if ((wheelDelta < 0 && infoPtr->wheelRemainder < 0) ||
(wheelDelta > 0 && infoPtr->wheelRemainder > 0))
infoPtr->wheelRemainder += wheelDelta;
else
infoPtr->wheelRemainder = wheelDelta;
if (infoPtr->wheelRemainder && pulScrollLines)
{
int newDy;
int maxDy;
int lineScroll;
lineScroll = pulScrollLines * (float)infoPtr->wheelRemainder / WHEEL_DELTA;
infoPtr->wheelRemainder -= WHEEL_DELTA * lineScroll / (int)pulScrollLines;
newDy = infoPtr->firstVisible->visibleOrder - lineScroll;
maxDy = infoPtr->maxVisibleOrder;
if (newDy > maxDy)
newDy = maxDy;
if (newDy < 0)
newDy = 0;
TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
}
return TRUE;
}
/* Create/Destroy *******************************************************/
static LRESULT
TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
{
RECT rcClient;
TREEVIEW_INFO *infoPtr;
LOGFONTW lf;
TRACE("wnd %p, style 0x%x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
infoPtr = heap_alloc_zero(sizeof(TREEVIEW_INFO));
if (infoPtr == NULL)
{
ERR("could not allocate info memory!\n");
return 0;
}
SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
infoPtr->hwnd = hwnd;
infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
infoPtr->Timer = 0;
infoPtr->uNumItems = 0;
infoPtr->cdmode = 0;
infoPtr->uScrollTime = 300; /* milliseconds */
infoPtr->bRedraw = TRUE;
GetClientRect(hwnd, &rcClient);
/* No scroll bars yet. */
infoPtr->clientWidth = rcClient.right;
infoPtr->clientHeight = rcClient.bottom;
infoPtr->uInternalStatus = 0;
infoPtr->treeWidth = 0;
infoPtr->treeHeight = 0;
infoPtr->uIndent = MINIMUM_INDENT;
infoPtr->selectedItem = NULL;
infoPtr->focusedItem = NULL;
infoPtr->hotItem = NULL;
infoPtr->editItem = NULL;
infoPtr->firstVisible = NULL;
infoPtr->maxVisibleOrder = 0;
infoPtr->dropItem = NULL;
infoPtr->insertMarkItem = NULL;
infoPtr->insertBeforeorAfter = 0;
/* dragList */
infoPtr->scrollX = 0;
infoPtr->wheelRemainder = 0;
infoPtr->clrBk = CLR_NONE; /* use system color */
infoPtr->clrText = CLR_NONE; /* use system color */
infoPtr->clrLine = CLR_DEFAULT;
infoPtr->clrInsertMark = CLR_DEFAULT;
/* hwndToolTip */
infoPtr->hwndEdit = NULL;
infoPtr->wpEditOrig = NULL;
infoPtr->bIgnoreEditKillFocus = FALSE;
infoPtr->bLabelChanged = FALSE;
infoPtr->himlNormal = NULL;
infoPtr->himlState = NULL;
infoPtr->normalImageWidth = 0;
infoPtr->normalImageHeight = 0;
infoPtr->stateImageWidth = 0;
infoPtr->stateImageHeight = 0;
infoPtr->items = DPA_Create(16);
SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
infoPtr->root->state = TVIS_EXPANDED;
infoPtr->root->iLevel = -1;
infoPtr->root->visibleOrder = -1;
infoPtr->hwndNotify = lpcs->hwndParent;
infoPtr->hwndToolTip = 0;
/* Determine what type of notify should be issued (sets infoPtr->bNtfUnicode) */
TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
hwnd, 0, 0, 0);
/* Make sure actual scrollbar state is consistent with uInternalStatus */
ShowScrollBar(hwnd, SB_VERT, FALSE);
ShowScrollBar(hwnd, SB_HORZ, FALSE);
OpenThemeData (hwnd, themeClass);
return 0;
}
static LRESULT
TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
/* free item data */
TREEVIEW_RemoveTree(infoPtr);
/* root isn't freed with other items */
TREEVIEW_FreeItem(infoPtr, infoPtr->root);
DPA_Destroy(infoPtr->items);
/* Restore original wndproc */
if (infoPtr->hwndEdit)
SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
(DWORD_PTR)infoPtr->wpEditOrig);
CloseThemeData (GetWindowTheme (infoPtr->hwnd));
/* Deassociate treeview from the window before doing anything drastic. */
SetWindowLongPtrW(infoPtr->hwnd, 0, 0);
DeleteObject(infoPtr->hDefaultFont);
DeleteObject(infoPtr->hBoldFont);
DeleteObject(infoPtr->hUnderlineFont);
DeleteObject(infoPtr->hBoldUnderlineFont);
DestroyWindow(infoPtr->hwndToolTip);
heap_free(infoPtr);
return 0;
}
/* Miscellaneous Messages ***********************************************/
static LRESULT
TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
{
static const struct
{
unsigned char code;
}
scroll[] =
{
#define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
#undef SCROLL_ENTRY
};
if (key >= VK_PRIOR && key <= VK_DOWN)
{
unsigned char code = scroll[key - VK_PRIOR].code;
(((code & (1 << 7)) == (SB_HORZ << 7))
? TREEVIEW_HScroll
: TREEVIEW_VScroll)(infoPtr, code & 0x7F);
}
return 0;
}
/************************************************************************
* TREEVIEW_KeyDown
*
* VK_UP Move selection to the previous non-hidden item.
* VK_DOWN Move selection to the next non-hidden item.
* VK_HOME Move selection to the first item.
* VK_END Move selection to the last item.
* VK_LEFT If expanded then collapse, otherwise move to parent.
* VK_RIGHT If collapsed then expand, otherwise move to first child.
* VK_ADD Expand.
* VK_SUBTRACT Collapse.
* VK_MULTIPLY Expand all.
* VK_PRIOR Move up GetVisibleCount items.
* VK_NEXT Move down GetVisibleCount items.
* VK_BACK Move to parent.
* CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
*/
static LRESULT
TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
{
/* If it is non-NULL and different, it will be selected and visible. */
TREEVIEW_ITEM *newSelection = NULL;
TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
NMTVKEYDOWN nmkeydown;
TRACE("%lx\n", wParam);
nmkeydown.wVKey = wParam;
nmkeydown.flags = 0;
TREEVIEW_SendRealNotify(infoPtr, TVN_KEYDOWN, &nmkeydown.hdr);
if (prevItem == NULL)
return FALSE;
if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
switch (wParam)
{
case VK_UP:
newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
if (!newSelection)
newSelection = infoPtr->root->firstChild;
break;
case VK_DOWN:
newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
break;
case VK_RETURN:
TREEVIEW_SendSimpleNotify(infoPtr, NM_RETURN);
break;
case VK_HOME:
newSelection = infoPtr->root->firstChild;
break;
case VK_END:
newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
break;
case VK_LEFT:
if (prevItem->state & TVIS_EXPANDED)
{
TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
}
else if (prevItem->parent != infoPtr->root)
{
newSelection = prevItem->parent;
}
break;
case VK_RIGHT:
if (TREEVIEW_HasChildren(infoPtr, prevItem))
{
if (!(prevItem->state & TVIS_EXPANDED))
TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
else
{
newSelection = prevItem->firstChild;
}
}
break;
case VK_MULTIPLY:
TREEVIEW_ExpandAll(infoPtr, prevItem);
break;
case VK_ADD:
TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
break;
case VK_SUBTRACT:
TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
break;
case VK_PRIOR:
newSelection
= TREEVIEW_GetListItem(infoPtr, prevItem,
-TREEVIEW_GetVisibleCount(infoPtr));
break;
case VK_NEXT:
newSelection
= TREEVIEW_GetListItem(infoPtr, prevItem,
TREEVIEW_GetVisibleCount(infoPtr));
break;
case VK_BACK:
newSelection = prevItem->parent;
if (newSelection == infoPtr->root)
newSelection = NULL;
break;
case VK_SPACE:
if (infoPtr->dwStyle & TVS_CHECKBOXES)
TREEVIEW_ToggleItemState(infoPtr, prevItem);
break;
}
if (newSelection && newSelection != prevItem)
{
if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
TVC_BYKEYBOARD))
{
TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
}
}
return FALSE;
}
static LRESULT
TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
{
/* remove hot effect from item */
TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
infoPtr->hotItem = NULL;
return 0;
}
static LRESULT
TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, LPARAM lParam)
{
TRACKMOUSEEVENT trackinfo;
TREEVIEW_ITEM * item;
TVHITTESTINFO ht;
BOOL item_hit;
if (!(infoPtr->dwStyle & TVS_TRACKSELECT)) return 0;
/* fill in the TRACKMOUSEEVENT struct */
trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
trackinfo.dwFlags = TME_QUERY;
trackinfo.hwndTrack = infoPtr->hwnd;
/* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
_TrackMouseEvent(&trackinfo);
/* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
if(!(trackinfo.dwFlags & TME_LEAVE))
{
trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
trackinfo.hwndTrack = infoPtr->hwnd;
/* do it as fast as possible, minimal systimer latency will be used */
trackinfo.dwHoverTime = 1;
/* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
/* and can properly deactivate the hot item */
_TrackMouseEvent(&trackinfo);
}
ht.pt.x = (short)LOWORD(lParam);
ht.pt.y = (short)HIWORD(lParam);
item = TREEVIEW_HitTest(infoPtr, &ht);
item_hit = TREEVIEW_IsItemHit(infoPtr, &ht);
if ((item != infoPtr->hotItem) || !item_hit)
{
/* redraw old hot item */
TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
infoPtr->hotItem = NULL;
if (item && item_hit)
{
infoPtr->hotItem = item;
/* redraw new hot item */
TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
}
}
return 0;
}
/* Draw themed border */
static BOOL TREEVIEW_NCPaint (const TREEVIEW_INFO *infoPtr, HRGN region, LPARAM lParam)
{
HTHEME theme = GetWindowTheme (infoPtr->hwnd);
HDC dc;
RECT r;
HRGN cliprgn;
int cxEdge = GetSystemMetrics (SM_CXEDGE),
cyEdge = GetSystemMetrics (SM_CYEDGE);
if (!theme)
return DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)region, lParam);
GetWindowRect(infoPtr->hwnd, &r);
cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
r.right - cxEdge, r.bottom - cyEdge);
if (region != (HRGN)1)
CombineRgn (cliprgn, cliprgn, region, RGN_AND);
OffsetRect(&r, -r.left, -r.top);
#ifdef __REACTOS__ /* r73789 */
dc = GetWindowDC(infoPtr->hwnd);
/* Exclude client part */
ExcludeClipRect(dc, r.left + cxEdge, r.top + cyEdge,
r.right - cxEdge, r.bottom -cyEdge);
#else
dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
OffsetRect(&r, -r.left, -r.top);
#endif
if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
DrawThemeBackground (theme, dc, 0, 0, &r, 0);
ReleaseDC(infoPtr->hwnd, dc);
/* Call default proc to get the scrollbars etc. painted */
DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
return TRUE;
}
static LRESULT
TREEVIEW_Notify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
LPNMHDR lpnmh = (LPNMHDR)lParam;
if (lpnmh->code == PGN_CALCSIZE) {
LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
if (lppgc->dwFlag == PGF_CALCWIDTH) {
lppgc->iWidth = infoPtr->treeWidth;
TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
infoPtr->treeWidth, infoPtr->clientWidth);
}
else {
lppgc->iHeight = infoPtr->treeHeight;
TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
infoPtr->treeHeight, infoPtr->clientHeight);
}
return 0;
}
return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
}
static LRESULT
TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
if (wParam == SIZE_RESTORED)
{
infoPtr->clientWidth = (short)LOWORD(lParam);
infoPtr->clientHeight = (short)HIWORD(lParam);
TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
TREEVIEW_UpdateScrollBars(infoPtr);
}
else
{
FIXME("WM_SIZE flag %lx %lx not handled\n", wParam, lParam);
}
TREEVIEW_Invalidate(infoPtr, NULL);
return 0;
}
static LRESULT
TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
TRACE("(%lx %lx)\n", wParam, lParam);
if (wParam == GWL_STYLE)
{
DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_CHECKBOXES)
{
if (dwNewStyle & TVS_CHECKBOXES)
{
TREEVIEW_InitCheckboxes(infoPtr);
TRACE("checkboxes enabled\n");
/* set all items to state image index 1 */
TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
}
else
{
FIXME("tried to disable checkboxes\n");
}
}
if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
{
if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
{
infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
TRACE("tooltips enabled\n");
}
else
{
DestroyWindow(infoPtr->hwndToolTip);
infoPtr->hwndToolTip = 0;
TRACE("tooltips disabled\n");
}
}
infoPtr->dwStyle = dwNewStyle;
}
TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL);
return 0;
}
static LRESULT
TREEVIEW_SetCursor(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
TREEVIEW_ITEM * item;
TVHITTESTINFO ht;
NMMOUSE nmmouse;
GetCursorPos(&ht.pt);
ScreenToClient(infoPtr->hwnd, &ht.pt);
item = TREEVIEW_HitTest(infoPtr, &ht);
memset(&nmmouse, 0, sizeof(nmmouse));
if (item)
{
nmmouse.dwItemSpec = (DWORD_PTR)item;
nmmouse.dwItemData = item->lParam;
}
nmmouse.pt.x = 0;
nmmouse.pt.y = 0;
nmmouse.dwHitInfo = lParam;
if (TREEVIEW_SendRealNotify(infoPtr, NM_SETCURSOR, &nmmouse.hdr))
return 0;
if (item && (infoPtr->dwStyle & TVS_TRACKSELECT) && TREEVIEW_IsItemHit(infoPtr, &ht))
{
SetCursor(infoPtr->hcurHand);
return 0;
}
else
return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
}
static LRESULT
TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
if (!infoPtr->selectedItem)
{
TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
TVC_UNKNOWN);
}
TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
return 0;
}
static LRESULT
TREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
UpdateWindow(infoPtr->hwnd);
TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
return 0;
}
/* update theme after a WM_THEMECHANGED message */
static LRESULT TREEVIEW_ThemeChanged(const TREEVIEW_INFO *infoPtr)
{
HTHEME theme = GetWindowTheme (infoPtr->hwnd);
CloseThemeData (theme);
OpenThemeData (infoPtr->hwnd, themeClass);
return 0;
}
static LRESULT WINAPI
TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
TRACE("hwnd %p msg %04x wp=%08lx lp=%08lx\n", hwnd, uMsg, wParam, lParam);
if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
else
{
if (uMsg == WM_CREATE)
TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
else
goto def;
}
switch (uMsg)
{
case TVM_CREATEDRAGIMAGE:
return TREEVIEW_CreateDragImage(infoPtr, lParam);
case TVM_DELETEITEM:
return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
case TVM_EDITLABELA:
case TVM_EDITLABELW:
return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
case TVM_ENDEDITLABELNOW:
return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
case TVM_ENSUREVISIBLE:
return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
case TVM_EXPAND:
return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
case TVM_GETBKCOLOR:
return TREEVIEW_GetBkColor(infoPtr);
case TVM_GETCOUNT:
return TREEVIEW_GetCount(infoPtr);
case TVM_GETEDITCONTROL:
return TREEVIEW_GetEditControl(infoPtr);
case TVM_GETIMAGELIST:
return TREEVIEW_GetImageList(infoPtr, wParam);
case TVM_GETINDENT:
return TREEVIEW_GetIndent(infoPtr);
case TVM_GETINSERTMARKCOLOR:
return TREEVIEW_GetInsertMarkColor(infoPtr);
case TVM_GETISEARCHSTRINGA:
FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
return 0;
case TVM_GETISEARCHSTRINGW:
FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
return 0;
case TVM_GETITEMA:
case TVM_GETITEMW:
return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam,
uMsg == TVM_GETITEMW);
case TVM_GETITEMHEIGHT:
return TREEVIEW_GetItemHeight(infoPtr);
case TVM_GETITEMRECT:
return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
case TVM_GETITEMSTATE:
return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
case TVM_GETLINECOLOR:
return TREEVIEW_GetLineColor(infoPtr);
case TVM_GETNEXTITEM:
return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
case TVM_GETSCROLLTIME:
return TREEVIEW_GetScrollTime(infoPtr);
case TVM_GETTEXTCOLOR:
return TREEVIEW_GetTextColor(infoPtr);
case TVM_GETTOOLTIPS:
return TREEVIEW_GetToolTips(infoPtr);
case TVM_GETUNICODEFORMAT:
return TREEVIEW_GetUnicodeFormat(infoPtr);
case TVM_GETVISIBLECOUNT:
return TREEVIEW_GetVisibleCount(infoPtr);
case TVM_HITTEST:
return (LRESULT)TREEVIEW_HitTest(infoPtr, (TVHITTESTINFO*)lParam);
case TVM_INSERTITEMA:
case TVM_INSERTITEMW:
return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam,
uMsg == TVM_INSERTITEMW);
case TVM_SELECTITEM:
return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
case TVM_SETBKCOLOR:
return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
case TVM_SETIMAGELIST:
return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
case TVM_SETINDENT:
return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
case TVM_SETINSERTMARK:
return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
case TVM_SETINSERTMARKCOLOR:
return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
case TVM_SETITEMA:
case TVM_SETITEMW:
return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam,
uMsg == TVM_SETITEMW);
case TVM_SETLINECOLOR:
return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
case TVM_SETITEMHEIGHT:
return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
case TVM_SETSCROLLTIME:
return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
case TVM_SETTEXTCOLOR:
return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
case TVM_SETTOOLTIPS:
return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
case TVM_SETUNICODEFORMAT:
return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
case TVM_SORTCHILDREN:
return TREEVIEW_SortChildren(infoPtr, lParam);
case TVM_SORTCHILDRENCB:
return TREEVIEW_SortChildrenCB(infoPtr, (LPTVSORTCB)lParam);
case WM_CHAR:
return TREEVIEW_ProcessLetterKeys(infoPtr, wParam, lParam);
case WM_COMMAND:
return TREEVIEW_Command(infoPtr, wParam, lParam);
case WM_DESTROY:
return TREEVIEW_Destroy(infoPtr);
/* WM_ENABLE */
case WM_ERASEBKGND:
return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
case WM_GETDLGCODE:
return DLGC_WANTARROWS | DLGC_WANTCHARS;
case WM_GETFONT:
return TREEVIEW_GetFont(infoPtr);
case WM_HSCROLL:
return TREEVIEW_HScroll(infoPtr, wParam);
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
return TREEVIEW_KeyDown(infoPtr, wParam);
case WM_KILLFOCUS:
return TREEVIEW_KillFocus(infoPtr);
case WM_LBUTTONDBLCLK:
return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
case WM_LBUTTONDOWN:
return TREEVIEW_LButtonDown(infoPtr, lParam);
/* WM_MBUTTONDOWN */
case WM_MOUSELEAVE:
return TREEVIEW_MouseLeave(infoPtr);
case WM_MOUSEMOVE:
return TREEVIEW_MouseMove(infoPtr, lParam);
case WM_NCLBUTTONDOWN:
if (infoPtr->hwndEdit)
SetFocus(infoPtr->hwnd);
goto def;
case WM_NCPAINT:
return TREEVIEW_NCPaint (infoPtr, (HRGN)wParam, lParam);
case WM_NOTIFY:
return TREEVIEW_Notify(infoPtr, wParam, lParam);
case WM_NOTIFYFORMAT:
return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
case WM_PRINTCLIENT:
return TREEVIEW_PrintClient(infoPtr, (HDC)wParam, lParam);
case WM_PAINT:
return TREEVIEW_Paint(infoPtr, (HDC)wParam);
case WM_RBUTTONDOWN:
return TREEVIEW_RButtonDown(infoPtr, lParam);
case WM_SETCURSOR:
return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
case WM_SETFOCUS:
return TREEVIEW_SetFocus(infoPtr);
case WM_SETFONT:
return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
case WM_SETREDRAW:
return TREEVIEW_SetRedraw(infoPtr, wParam);
case WM_SIZE:
return TREEVIEW_Size(infoPtr, wParam, lParam);
case WM_STYLECHANGED:
return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
case WM_SYSCOLORCHANGE:
COMCTL32_RefreshSysColors();
return 0;
case WM_TIMER:
return TREEVIEW_HandleTimer(infoPtr, wParam);
case WM_THEMECHANGED:
return TREEVIEW_ThemeChanged (infoPtr);
case WM_VSCROLL:
return TREEVIEW_VScroll(infoPtr, wParam);
/* WM_WININICHANGE */
case WM_MOUSEWHEEL:
return TREEVIEW_MouseWheel(infoPtr, wParam, lParam);
case WM_DRAWITEM:
TRACE("drawItem\n");
goto def;
default:
/* This mostly catches MFC and Delphi messages. :( */
if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
TRACE("Unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
def:
return DefWindowProcW(hwnd, uMsg, wParam, lParam);
}
}
/* Class Registration ***************************************************/
VOID
TREEVIEW_Register(void)
{
WNDCLASSW wndClass;
TRACE("\n");
ZeroMemory(&wndClass, sizeof(WNDCLASSW));
wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
wndClass.lpfnWndProc = TREEVIEW_WindowProc;
wndClass.cbClsExtra = 0;
wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
wndClass.hbrBackground = 0;
wndClass.lpszClassName = WC_TREEVIEWW;
RegisterClassW(&wndClass);
}
VOID
TREEVIEW_Unregister(void)
{
UnregisterClassW(WC_TREEVIEWW, NULL);
}
/* Tree Verification ****************************************************/
static inline void
TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item);
static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
const TREEVIEW_ITEM *item)
{
assert(infoPtr != NULL);
assert(item != NULL);
/* both NULL, or both non-null */
assert((item->firstChild == NULL) == (item->lastChild == NULL));
assert(item->firstChild != item);
assert(item->lastChild != item);
if (item->firstChild)
{
assert(item->firstChild->parent == item);
assert(item->firstChild->prevSibling == NULL);
}
if (item->lastChild)
{
assert(item->lastChild->parent == item);
assert(item->lastChild->nextSibling == NULL);
}
assert(item->nextSibling != item);
if (item->nextSibling)
{
assert(item->nextSibling->parent == item->parent);
assert(item->nextSibling->prevSibling == item);
}
assert(item->prevSibling != item);
if (item->prevSibling)
{
assert(item->prevSibling->parent == item->parent);
assert(item->prevSibling->nextSibling == item);
}
}
static inline void
TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
{
assert(item != NULL);
assert(item->parent != NULL);
assert(item->parent != item);
assert(item->iLevel == item->parent->iLevel + 1);
assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
TREEVIEW_VerifyItemCommon(infoPtr, item);
TREEVIEW_VerifyChildren(infoPtr, item);
}
static inline void
TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
{
const TREEVIEW_ITEM *child;
assert(item != NULL);
for (child = item->firstChild; child != NULL; child = child->nextSibling)
TREEVIEW_VerifyItem(infoPtr, child);
}
static inline void
TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
{
TREEVIEW_ITEM *root = infoPtr->root;
assert(root != NULL);
assert(root->iLevel == -1);
assert(root->parent == NULL);
assert(root->prevSibling == NULL);
TREEVIEW_VerifyItemCommon(infoPtr, root);
TREEVIEW_VerifyChildren(infoPtr, root);
}
static void
TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
{
if (!TRACE_ON(treeview)) return;
assert(infoPtr != NULL);
TREEVIEW_VerifyRoot(infoPtr);
}
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