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reactos/rosapps/regedit/treeview.c
Robert Dickenson cc89fd7bba Updates with progress on TreeView, ChildWnd type and more... 
svn path=/trunk/; revision=3232
2002-07-15 20:00:02 +00:00

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/*
* ReactOS regedit
*
* treeview.c
*
* Copyright (C) 2002 Robert Dickenson <robd@reactos.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef _MSC_VER
#include "stdafx.h"
#else
#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
#include <windows.h>
#include <commctrl.h>
#include <stdlib.h>
#include <malloc.h>
#include <memory.h>
#include <tchar.h>
#include <process.h>
#include <stdio.h>
#endif
#include <windowsx.h>
#include <assert.h>
#define ASSERT assert
#include "main.h"
#include "treeview.h"
#include "trace.h"
// Global variables and constants
// Image_Open, Image_Closed, and Image_Root - integer variables for
// indexes of the images.
// CX_BITMAP and CY_BITMAP - width and height of an icon.
// NUM_BITMAPS - number of bitmaps to add to the image list.
int Image_Open;
int Image_Closed;
int Image_Root;
#define CX_BITMAP 16
#define CY_BITMAP 16
#define NUM_BITMAPS 3
#if 0
/*
// AddItemToTree - adds items to a tree view control.
// Returns the handle to the newly added item.
// hwndTV - handle to the tree view control.
// lpszItem - text of the item to add.
// nLevel - level at which to add the item.
HTREEITEM AddItemToTree(HWND hwndTV, LPTSTR lpszItem, int nLevel)
{
TVITEM tvi;
TVINSERTSTRUCT tvins;
static HTREEITEM hPrev = (HTREEITEM)TVI_FIRST;
static HTREEITEM hPrevRootItem = NULL;
static HTREEITEM hPrevLev2Item = NULL;
HTREEITEM hti;
tvi.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
// Set the text of the item.
tvi.pszText = lpszItem;
tvi.cchTextMax = lstrlen(lpszItem);
// Assume the item is not a parent item, so give it an image.
tvi.iImage = Image_Root;
tvi.iSelectedImage = Image_Root;
tvi.cChildren = 1;
// Save the heading level in the item's application-defined data area.
tvi.lParam = (LPARAM)nLevel;
tvins.item = tvi;
tvins.hInsertAfter = hPrev;
// Set the parent item based on the specified level.
if (nLevel == 1)
tvins.hParent = TVI_ROOT;
else if (nLevel == 2)
tvins.hParent = hPrevRootItem;
else
tvins.hParent = hPrevLev2Item;
// Add the item to the tree view control.
hPrev = (HTREEITEM)SendMessage(hwndTV, TVM_INSERTITEM, 0, (LPARAM)(LPTVINSERTSTRUCT)&tvins);
// Save the handle to the item.
if (nLevel == 1)
hPrevRootItem = hPrev;
else if (nLevel == 2)
hPrevLev2Item = hPrev;
// The new item is a child item. Give the parent item a
// closed folder bitmap to indicate it now has child items.
if (nLevel > 1) {
hti = TreeView_GetParent(hwndTV, hPrev);
tvi.mask = TVIF_IMAGE | TVIF_SELECTEDIMAGE;
tvi.hItem = hti;
tvi.iImage = Image_Closed;
tvi.iSelectedImage = Image_Closed;
TreeView_SetItem(hwndTV, &tvi);
}
return hPrev;
}
*/
#endif
static void init_output(HWND hWnd)
{
// TCHAR b[16];
// HFONT old_font;
HDC hdc = GetDC(hWnd);
// if (GetNumberFormat(LOCALE_USER_DEFAULT, 0, _T("1000"), 0, b, 16) > 4)
// Globals.num_sep = b[1];
// else
// Globals.num_sep = _T('.');
// old_font = SelectFont(hdc, Globals.hFont);
// GetTextExtentPoint32(hdc, _T(" "), 1, &Globals.spaceSize);
// SelectFont(hdc, old_font);
ReleaseDC(hWnd, hdc);
}
static HTREEITEM AddEntryToTree(HWND hwndTV, Entry* entry, LPTSTR label)
{
HTREEITEM hItem = 0;
TVITEM tvi;
TVINSERTSTRUCT tvins;
static HTREEITEM hPrev = (HTREEITEM)TVI_FIRST;
static HTREEITEM hPrevRootItem = NULL;
static HTREEITEM hPrevLev2Item = NULL;
//TRACE("AddEntryToTree(level:%u - %s)\n", entry->level, entry->data.cFileName);
tvi.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
/*
// Set the text of the item.
tvi.pszText = entry->data.cFileName;
tvi.cchTextMax = lstrlen(entry->data.cFileName);
// Assume the item is not a parent item, so give it an image.
tvi.iImage = Image_Root;
tvi.iSelectedImage = Image_Root;
tvi.cChildren = 1;
// Save the heading level in the item's application-defined data area.
//tvi.lParam = (LPARAM)entry->level;
*/
if (label != NULL) {
tvi.pszText = label;
tvi.cchTextMax = _tcslen(label);
} else {
tvi.pszText = LPSTR_TEXTCALLBACK;
tvi.cchTextMax = 0;
}
tvi.iImage = I_IMAGECALLBACK;
tvi.iSelectedImage = I_IMAGECALLBACK;
tvi.cChildren = I_CHILDRENCALLBACK;
// Save the entry pointer in the item's application-defined data area.
tvi.lParam = (LPARAM)entry;
tvins.item = tvi;
tvins.hInsertAfter = hPrev;
// Set the parent item based on the specified level.
if (entry->level == 0) {
tvins.hParent = TVI_ROOT;
} else if (entry->level == 1) {
tvins.hParent = hPrevRootItem;
} else {
tvins.hParent = hPrevLev2Item;
if (hPrevLev2Item) {
tvins.hParent = entry->up->hTreeItem;
}
}
// Add the item to the tree view control.
hPrev = (HTREEITEM)SendMessage(hwndTV, TVM_INSERTITEM, 0, (LPARAM)(LPTVINSERTSTRUCT)&tvins);
// Save the handle to the item.
if (entry->level == 0)
hPrevRootItem = hPrev;
else if (entry->level == 1)
hPrevLev2Item = hPrev;
/*
// The new item is a child item. Give the parent item a
// closed folder bitmap to indicate it now has child items.
if (entry->level > 1) {
HTREEITEM hti;
hti = TreeView_GetParent(hwndTV, hPrev);
tvi.mask = TVIF_IMAGE | TVIF_SELECTEDIMAGE;
tvi.hItem = hti;
tvi.iImage = Image_Closed;
tvi.iSelectedImage = Image_Closed;
TreeView_SetItem(hwndTV, &tvi);
}
*/
hItem = hPrev;
return hItem;
}
// insert treectrl entries after index idx
static void insert_tree_entries(HWND hWnd, Entry* entry, int idx)
{
static HTREEITEM hItemVisible;
static int hItemVisibleIdx;
if (!entry)
return;
if (entry->hTreeItem)
return;
ShowWindow(hWnd, SW_HIDE);
for(; entry; entry=entry->next) {
/*
#ifndef _LEFT_FILES
if (!(entry->data.dwFileAttributes&FILE_ATTRIBUTE_DIRECTORY))
continue;
#endif
// don't display entries "." and ".." in the left pane
if ((entry->data.dwFileAttributes&FILE_ATTRIBUTE_DIRECTORY) && entry->data.cFileName[0]==_T('.')) {
if (entry->data.cFileName[1] == _T('\0') ||
(entry->data.cFileName[1] == _T('.') &&
entry->data.cFileName[2] == _T('\0'))) {
continue;
}
}
//TRACE("Adding item %u [level:%u] - %s\n", ++idx, entry->level, entry->data.cFileName);
*/
if (entry->hTreeItem) continue;
entry->hTreeItem = AddEntryToTree(hWnd, entry, NULL);
if (entry->expanded) {
insert_tree_entries(hWnd, entry->down, idx + 1);
TreeView_Expand(hWnd, entry->hTreeItem, TVE_EXPAND);
}
if (idx > hItemVisibleIdx) {
hItemVisibleIdx = idx;
hItemVisible = entry->hTreeItem;
}
}
if (hItemVisible && idx == 0) {
TreeView_SelectSetFirstVisible(hWnd, hItemVisible);
}
ShowWindow(hWnd, SW_SHOW);
}
static BOOL InitTreeViewItems(HWND hwndTV, Root* pRoot/*LPCTSTR pHostName*/)
{
// HRESULT key;
//HRESULT openKey(LPSTR stdInput)
// key = openKey("HKEY_CLASSES_ROOT");
//LPSTR getRegKeyName(LPSTR lpLine);
//HKEY getRegClass(LPSTR lpLine);
// closeKey();
#define MAX_NAME_LEN 500
HKEY hKey;
LONG errCode;
Entry* pPrevEntry;
Entry* pEntry = &pRoot->entry;
HTREEITEM hRootItem;
// TCHAR* pHostName = _T("My Computer");
// HTREEITEM hRootItem = AddItemToTree(hwndTV, pHostName, 1);
// pEntry = malloc(sizeof(Entry));
// memset(pEntry, 0, sizeof(Entry));
// memset(pEntry, 0, sizeof(Entry));
//insert_tree_entries(hwndTV, pEntry, 0);
pEntry->level = 0;
pEntry->hTreeItem = AddEntryToTree(hwndTV, pEntry, pRoot->path);
hRootItem = pEntry->hTreeItem;
pPrevEntry = pEntry;
//HTREEITEM AddItemToTree(HWND hwndTV, LPTSTR lpszItem, int nLevel)
//HTREEITEM AddEntryToTree(HWND hwndTV, Entry* entry)
//static void insert_tree_entries(HWND hWnd, Entry* entry, int idx)
pEntry = malloc(sizeof(Entry));
memset(pEntry, 0, sizeof(Entry));
pEntry->up = &pRoot->entry;
pEntry->level = 1;
pEntry->hTreeItem = AddEntryToTree(hwndTV, pEntry, _T("HKEY_CLASSES_ROOT"));
pEntry = malloc(sizeof(Entry));
memset(pEntry, 0, sizeof(Entry));
pEntry->up = &pRoot->entry;
pEntry->level = 1;
pEntry->hTreeItem = AddEntryToTree(hwndTV, pEntry, _T("HKEY_CURRENT_USER"));
pEntry = malloc(sizeof(Entry));
memset(pEntry, 0, sizeof(Entry));
pEntry->up = &pRoot->entry;
pEntry->level = 1;
pEntry->hTreeItem = AddEntryToTree(hwndTV, pEntry, _T("HKEY_LOCAL_MACHINE"));
pPrevEntry = pEntry;
errCode = RegOpenKeyEx(HKEY_LOCAL_MACHINE, NULL, 0, KEY_READ, &hKey);
if (errCode == ERROR_SUCCESS) {
TCHAR Name[MAX_NAME_LEN];
TCHAR Class[MAX_NAME_LEN];
FILETIME LastWriteTime;
DWORD dwIndex = 0L;
DWORD cName = MAX_NAME_LEN;
DWORD cClass = MAX_NAME_LEN;
while (RegEnumKeyEx(hKey, dwIndex, Name, &cName, NULL, Class, &cClass, &LastWriteTime) == ERROR_SUCCESS) {
//AddItemToTree(hwndTV, Name, 2);
pEntry = malloc(sizeof(Entry));
memset(pEntry, 0, sizeof(Entry));
pEntry->up = pPrevEntry;
pEntry->hKey = hKey;
pEntry->bKey = TRUE;
//insert_tree_entries(hwndTV, pEntry, 0);
pEntry->level = 2;
// pEntry->hTreeItem = AddEntryToTree(hwndTV, pEntry, Name);
pEntry->hTreeItem = AddEntryToTree(hwndTV, pEntry, NULL);
cName = MAX_NAME_LEN;
cClass = MAX_NAME_LEN;
++dwIndex;
}
RegCloseKey(hKey);
TreeView_Expand(hwndTV, hRootItem, TVE_EXPAND);
}
pEntry = malloc(sizeof(Entry));
memset(pEntry, 0, sizeof(Entry));
pEntry->up = &pRoot->entry;
pEntry->level = 1;
pEntry->hTreeItem = AddEntryToTree(hwndTV, pEntry, _T("HKEY_USERS"));
pEntry = malloc(sizeof(Entry));
memset(pEntry, 0, sizeof(Entry));
pEntry->up = &pRoot->entry;
pEntry->level = 1;
pEntry->hTreeItem = AddEntryToTree(hwndTV, pEntry, _T("HKEY_CURRENT_CONFIG"));
return TRUE;
}
/*
AddItemToTree(hwndTV, _T("HKEY_CLASSES_ROOT"), 2);
AddItemToTree(hwndTV, _T("HKEY_CURRENT_USER"), 2);
AddItemToTree(hwndTV, _T("HKEY_LOCAL_MACHINE"), 2);
AddItemToTree(hwndTV, _T("HKEY_USERS"), 2);
AddItemToTree(hwndTV, _T("HKEY_CURRENT_CONFIG"), 2);
*/
/*
LONG RegOpenKeyEx(
HKEY hKey, // handle to open key
LPCTSTR lpSubKey, // subkey name
DWORD ulOptions, // reserved
REGSAM samDesired, // security access mask
PHKEY phkResult // handle to open key
);
LONG RegEnumKey(
HKEY hKey, // handle to key to query
DWORD dwIndex, // index of subkey to query
LPTSTR lpName, // buffer for subkey name
DWORD cbName // size of subkey name buffer
);
LONG RegEnumKeyEx(
HKEY hKey, // handle to key to enumerate
DWORD dwIndex, // subkey index
LPTSTR lpName, // subkey name
LPDWORD lpcName, // size of subkey buffer
LPDWORD lpReserved, // reserved
LPTSTR lpClass, // class string buffer
LPDWORD lpcClass, // size of class string buffer
PFILETIME lpftLastWriteTime // last write time
);
*/
/*
RegCloseKey
RegConnectRegistryW
RegCreateKeyW
RegDeleteKeyW
RegDeleteValueW
RegEnumKeyW
RegEnumValueW
RegFlushKey
RegOpenKeyExA
RegOpenKeyExW
RegOpenKeyW
RegQueryInfoKeyW
RegQueryValueExA
RegQueryValueExW
RegSetValueExA
RegSetValueExW
RegSetValueW
*/
// InitTreeViewImageLists - creates an image list, adds three bitmaps
// to it, and associates the image list with a tree view control.
// Returns TRUE if successful, or FALSE otherwise.
// hwndTV - handle to the tree view control.
static BOOL InitTreeViewImageLists(HWND hwndTV)
{
HIMAGELIST himl; // handle to image list
HBITMAP hbmp; // handle to bitmap
// Create the image list.
if ((himl = ImageList_Create(CX_BITMAP, CY_BITMAP,
FALSE, NUM_BITMAPS, 0)) == NULL)
return FALSE;
// Add the open file, closed file, and document bitmaps.
hbmp = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_OPEN_FILE));
Image_Open = ImageList_Add(himl, hbmp, (HBITMAP) NULL);
DeleteObject(hbmp);
hbmp = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_CLOSED_FILE));
Image_Closed = ImageList_Add(himl, hbmp, (HBITMAP) NULL);
DeleteObject(hbmp);
hbmp = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_ROOT));
Image_Root = ImageList_Add(himl, hbmp, (HBITMAP) NULL);
DeleteObject(hbmp);
// Fail if not all of the images were added.
if (ImageList_GetImageCount(himl) < 3)
return FALSE;
// Associate the image list with the tree view control.
TreeView_SetImageList(hwndTV, himl, TVSIL_NORMAL);
return TRUE;
}
#ifndef _MSC_VER
#define NMTVDISPINFO TV_DISPINFO
#define NMTVDISPINFO TV_DISPINFO
#endif
static void OnGetDispInfo(NMTVDISPINFO* ptvdi)
{
FILETIME LastWriteTime;
TCHAR Class[MAX_NAME_LEN];
DWORD cClass = MAX_NAME_LEN;
// TCHAR Name[MAX_NAME_LEN];
// DWORD cName = MAX_NAME_LEN;
// DWORD dwIndex = 0L;
Entry* pEntry = (Entry*)ptvdi->item.lParam;
ASSERT(pEntry);
if (ptvdi->item.mask & TVIF_CHILDREN ) {
ptvdi->item.cChildren = 5;
}
if (ptvdi->item.mask & TVIF_IMAGE) {
ptvdi->item.iImage = Image_Root;
}
if (ptvdi->item.mask & TVIF_SELECTEDIMAGE) {
ptvdi->item.iSelectedImage = Image_Closed;
}
if (ptvdi->item.mask & TVIF_TEXT) {
ptvdi->item.pszText = _T("Unknown");
ptvdi->item.cchTextMax = _tcslen(ptvdi->item.pszText);
if (pEntry->bKey == TRUE) {
DWORD nSubKeys;
DWORD MaxSubKeyLen;
DWORD MaxClassLen;
DWORD ValueCount;
DWORD MaxValueNameLen;
DWORD MaxValueLen;
DWORD SecurityDescriptorLen;
HKEY hKey = pEntry->hKey;
LONG result = RegQueryInfoKey(pEntry->hKey, Class, &cClass, 0,
&nSubKeys, &MaxSubKeyLen, &MaxClassLen, &ValueCount,
&MaxValueNameLen, &MaxValueLen, &SecurityDescriptorLen,
&LastWriteTime);
if (result == ERROR_SUCCESS) {
// ptvdi->item.pszText = Class;
// ptvdi->item.cchTextMax = cClass;
}
}
// ptvdi->item.pszText = entry->data.cFileName;
// ptvdi->item.cchTextMax = lstrlen(entry->data.cFileName);
}
}
// OnEndLabelEdit - processes the LVN_ENDLABELEDIT notification message.
// Returns TRUE if the label is changed, or FALSE otherwise.
static BOOL OnEndLabelEdit(NMTVDISPINFO* ptvdi)
{
// if (ptvdi->item.iItem == -1)
// return FALSE;
// Copy the new label text to the application-defined structure.
// lstrcpyn(rgPetInfo[ptvdi->item.iItem].szKind, ptvdi->item.pszText, 10);
return TRUE;
// To make a more robust application you should send an EM_LIMITTEXT
// message to the edit control to prevent the user from entering too
// many characters in the field.
}
static BOOL OnExpand(int flag, HTREEITEM* pti)
{
TRACE(_T("TreeWndProc(...) OnExpand()\n"));
//TRACE("OnExpand(...) entry name: %s\n", entry->data.cFileName);
/*
TVE_COLLAPSE Collapses the list.
TVE_COLLAPSERESET Collapses the list and removes the child items. The TVIS_EXPANDEDONCE state flag is reset. This flag must be used with the TVE_COLLAPSE flag.
TVE_EXPAND Expands the list.
TVE_EXPANDPARTIAL Version 4.70. Partially expands the list. In this state, the child items are visible and the parent item's plus symbol is displayed. This flag must be used in combination with the TVE_EXPAND flag.
TVE_TOGGLE Collapses the list if it is expanded or expands it if it is collapsed.
*/
return TRUE;
}
static BOOL OnExpanding(HWND hWnd, NMTREEVIEW* pnmtv)
{
static int expanding;
Entry* entry = (Entry*)pnmtv->itemNew.lParam;
TRACE(_T("TreeWndProc(...) OnExpanding() entry: %p\n"), entry);
if (expanding) return FALSE;
expanding = TRUE;
if (entry) {
insert_tree_entries(hWnd, entry->down, 0);
// insert_tree_entries(hWnd, entry, 0);
}
expanding = FALSE;
return TRUE;
}
/*
static BOOL OnSelChanged(NMTREEVIEW* pnmtv)
{
LPARAM parm = pnmtv->itemNew.lParam;
ChildWnd* child = (ChildWnd*)pnmtv->itemNew.lParam;
return TRUE;
}
*/
////////////////////////////////////////////////////////////////////////////////
static WNDPROC g_orgTreeWndProc;
static LRESULT CALLBACK TreeWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
// ChildWnd* child = (ChildWnd*)GetWindowLong(GetParent(hWnd), GWL_USERDATA);
// Pane* pane = (Pane*)GetWindowLong(hWnd, GWL_USERDATA);
// ASSERT(child);
switch (message) {
case WM_NOTIFY:
switch (((LPNMHDR)lParam)->code) {
case TVM_EXPAND:
//return OnExpand((int)wParam, (HTREEITEM*)lParam);
OnExpand((int)wParam, (HTREEITEM*)lParam);
break;
case TVN_GETDISPINFO:
OnGetDispInfo((NMTVDISPINFO*)lParam);
break;
case TVN_ITEMEXPANDING:
return OnExpanding(hWnd, (NMTREEVIEW*)lParam);
break;
case TVN_SELCHANGED:
// return OnSelChanged((NMTREEVIEW*)lParam);
// break;
#if 0
case TVN_SINGLEEXPAND:
TRACE("TreeWndProc(...) TVN_SINGLEEXPAND\n");
//lpnmtv = (LPNMTREEVIEW)lParam;
//return TVNRET_DEFAULT;
// return TVNRET_SKIPOLD; // Skip default processing of the item being unselected.
// return TVNRET_SKIPNEW; // Skip default processing of the item being selected.
break;
#endif
case TVN_ENDLABELEDIT:
return OnEndLabelEdit((NMTVDISPINFO*)lParam);
break;
}
return 0;
break;
case WM_SETFOCUS:
//child->nFocusPanel = pane == &child->right? 1: 0;
//TODO: check menu items
break;
case WM_KEYDOWN:
if (wParam == VK_TAB) {
//SetFocus(child->nFocusPanel ? child->left.hWnd: child->right.hWnd);
}
break;
}
return CallWindowProc(g_orgTreeWndProc, hWnd, message, wParam, lParam);
}
// CreateTreeView - creates a tree view control.
// Returns the handle to the new control if successful,
// or NULL otherwise.
// hwndParent - handle to the control's parent window.
HWND CreateTreeView(HWND hwndParent/*, Pane* pane*/, int id, Root* pRoot/*LPTSTR lpszPathName*/)
{
RECT rcClient; // dimensions of client area
HWND hwndTV; // handle to tree view control
// static int s_init = 0;
// Entry* entry = pane->root;
// pane->treePane = 1;
// Get the dimensions of the parent window's client area, and create
// the tree view control.
GetClientRect(hwndParent, &rcClient);
hwndTV = CreateWindowEx(0, WC_TREEVIEW, _T("Tree View"),
WS_VISIBLE | WS_CHILD | WS_BORDER | TVS_HASLINES | TVS_HASBUTTONS | TVS_LINESATROOT,
0, 0, rcClient.right, rcClient.bottom,
hwndParent, (HMENU)id, hInst, NULL);
// Initialize the image list, and add items to the control.
if (!InitTreeViewImageLists(hwndTV) || !InitTreeViewItems(hwndTV, pRoot)) {
DestroyWindow(hwndTV);
return NULL;
}
SetWindowLong(hwndTV, GWL_USERDATA, (LPARAM)0);
g_orgTreeWndProc = SubclassWindow(hwndTV, TreeWndProc);
//SendMessage(hwndTV, WM_SETFONT, (WPARAM)Globals.hFont, FALSE);
// insert entries into treectrl
// if (entry) {
// insert_tree_entries(hwndTV, entry, 0);
// }
// calculate column widths
// if (!s_init) {
// s_init = 1;
// init_output(hwndTV);
// }
return hwndTV;
}
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