Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-10-06 09:24:11 +00:00
Code Issues Packages Projects Releases Wiki Activity
reactos/reactos/lib/user32/controls/scrollbar.c
Thomas Bluemel 76286b9a50 renamed and fixed a few functions regarding scrollbars 
svn path=/trunk/; revision=6004
2003-09-07 09:55:52 +00:00

465 lines
12 KiB
C
Raw Blame History

/* $Id: scrollbar.c,v 1.12 2003/09/07 09:55:52 weiden Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* PURPOSE: Windows
* FILE: subsys/win32k/ntuser/window.c
* PROGRAMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
* REVISION HISTORY:
* 06-06-2001 CSH Created
*/
/* INCLUDES ******************************************************************/
#include <windows.h>
#include <user32.h>
#include <debug.h>
#include <draw.h>
#include <stdlib.h>
#include <string.h>
/* GLOBAL VARIABLES **********************************************************/
/*
static HBITMAP hUpArrow;
static HBITMAP hDnArrow;
static HBITMAP hLfArrow;
static HBITMAP hRgArrow;
static HBITMAP hUpArrowD;
static HBITMAP hDnArrowD;
static HBITMAP hLfArrowD;
static HBITMAP hRgArrowD;
static HBITMAP hUpArrowI;
static HBITMAP hDnArrowI;
static HBITMAP hLfArrowI;
static HBITMAP hRgArrowI;
*/
#define TOP_ARROW(flags,pressed) \
(((flags)&ESB_DISABLE_UP) ? hUpArrowI : ((pressed) ? hUpArrowD:hUpArrow))
#define BOTTOM_ARROW(flags,pressed) \
(((flags)&ESB_DISABLE_DOWN) ? hDnArrowI : ((pressed) ? hDnArrowD:hDnArrow))
#define LEFT_ARROW(flags,pressed) \
(((flags)&ESB_DISABLE_LEFT) ? hLfArrowI : ((pressed) ? hLfArrowD:hLfArrow))
#define RIGHT_ARROW(flags,pressed) \
(((flags)&ESB_DISABLE_RIGHT) ? hRgArrowI : ((pressed) ? hRgArrowD:hRgArrow))
#define SCROLL_ARROW_THUMB_OVERLAP 0 /* Overlap between arrows and thumb */
#define SCROLL_MIN_THUMB 6 /* Minimum size of the thumb in pixels */
#define SCROLL_FIRST_DELAY 200 /* Delay (in ms) before first repetition when holding the button down */
#define SCROLL_REPEAT_DELAY 50 /* Delay (in ms) between scroll repetitions */
#define SCROLL_TIMER 0 /* Scroll timer id */
/* What to do after SCROLL_SetScrollInfo() */
#define SA_SSI_HIDE 0x0001
#define SA_SSI_SHOW 0x0002
#define SA_SSI_REFRESH 0x0004
#define SA_SSI_REPAINT_ARROWS 0x0008
/* Scroll-bar hit testing */
#define SCROLL_NOWHERE 0x01 /* Outside the scroll bar */
#define SCROLL_TOP_ARROW 0x02 /* Top or left arrow */
#define SCROLL_TOP_RECT 0x04 /* Rectangle between the top arrow and the thumb */
#define SCROLL_THUMB 0x08 /* Thumb rectangle */
#define SCROLL_BOTTOM_RECT 0x10 /* Rectangle between the thumb and the bottom arrow */
#define SCROLL_BOTTOM_ARROW 0x20 /* Bottom or right arrow */
static BOOL SCROLL_MovingThumb = FALSE; /* Is the moving thumb being displayed? */
/* Thumb-tracking info */
static HWND SCROLL_TrackingWin = 0;
static INT SCROLL_TrackingBar = 0;
static INT SCROLL_TrackingPos = 0;
/* static INT SCROLL_TrackingVal = 0; */
static DWORD SCROLL_trackHitTest; /* Hit test code of the last button-down event */
static BOOL SCROLL_trackVertical;
/* INTERNAL FUNCTIONS *********************************************************/
HBRUSH DefWndControlColor (HDC hDC, UINT ctlType);
DWORD FASTCALL
SCROLL_HitTest(HWND hwnd, LONG idObject, POINT Point)
{
RECT WindowRect;
GetWindowRect(hwnd, &WindowRect);
if (!PtInRect(&WindowRect, Point))
{
return(SCROLL_NOWHERE);
}
return SCROLL_NOWHERE;
}
/* Ported from WINE20020904 */
/* Draw the scroll bar interior (everything except the arrows). */
static void
SCROLL_DrawInterior (HWND hwnd, HDC hdc, INT nBar, BOOL vertical, INT
arrowSize, PSCROLLBARINFO psbi)
{
INT thumbSize = psbi->xyThumbBottom - psbi->xyThumbTop;
HPEN hSavePen;
HBRUSH hSaveBrush, hBrush;
BOOLEAN top_selected = FALSE, bottom_selected = FALSE;
DbgPrint("[SCROLL_DrawInterior:%d]\n", nBar);
if(psbi->rgstate[2] & STATE_SYSTEM_PRESSED)
{
top_selected = TRUE;
}
if(psbi->rgstate[4] & STATE_SYSTEM_PRESSED)
{
bottom_selected = TRUE;
}
/* Only scrollbar controls send WM_CTLCOLORSCROLLBAR.
* The window-owned scrollbars need to call DefWndControlColor
* to correctly setup default scrollbar colors
*/
if ( nBar == SB_CTL )
{
hBrush = (HBRUSH) NtUserSendMessage (GetParent (hwnd), WM_CTLCOLORSCROLLBAR, (WPARAM) hdc, (LPARAM) hwnd);
if(!hBrush)
hBrush = GetSysColorBrush(COLOR_SCROLLBAR);
}
else
{
/* hBrush = NtUserGetControlColor (hdc, CTLCOLOR_SCROLLBAR); FIXME
*/ /* DefWndControlColor */
hBrush = GetSysColorBrush(COLOR_SCROLLBAR);
}
hSavePen = SelectObject (hdc, GetSysColorPen (COLOR_WINDOWFRAME));
hSaveBrush = SelectObject (hdc, hBrush);
/* Calculate the scroll rectangle */
if (vertical)
{
psbi->rcScrollBar.top += arrowSize - SCROLL_ARROW_THUMB_OVERLAP;
psbi->rcScrollBar.bottom -= (arrowSize - SCROLL_ARROW_THUMB_OVERLAP);
}
else
{
psbi->rcScrollBar.left += arrowSize - SCROLL_ARROW_THUMB_OVERLAP;
psbi->rcScrollBar.right -= (arrowSize - SCROLL_ARROW_THUMB_OVERLAP);
}
/* Draw the scroll rectangles and thumb */
if (!psbi->dxyLineButton) /* No thumb to draw */
{
PatBlt (hdc,
psbi->rcScrollBar.left,
psbi->rcScrollBar.top,
psbi->rcScrollBar.right - psbi->rcScrollBar.left,
psbi->rcScrollBar.bottom - psbi->rcScrollBar.top,
PATCOPY);
/* cleanup and return */
SelectObject (hdc, hSavePen);
SelectObject (hdc, hSaveBrush);
return;
}
if (vertical)
{
PatBlt (hdc,
psbi->rcScrollBar.left,
psbi->rcScrollBar.top,
psbi->rcScrollBar.right - psbi->rcScrollBar.left,
psbi->dxyLineButton - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP),
top_selected ? 0x0f0000 : PATCOPY);
psbi->rcScrollBar.top += psbi->dxyLineButton - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP);
PatBlt (hdc,
psbi->rcScrollBar.left,
psbi->rcScrollBar.top + thumbSize,
psbi->rcScrollBar.right - psbi->rcScrollBar.left,
psbi->rcScrollBar.bottom - psbi->rcScrollBar.top - thumbSize,
bottom_selected ? 0x0f0000 : PATCOPY);
psbi->rcScrollBar.bottom = psbi->rcScrollBar.top + thumbSize;
}
else
{
PatBlt (hdc,
psbi->rcScrollBar.left,
psbi->rcScrollBar.top,
psbi->dxyLineButton - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP),
psbi->rcScrollBar.bottom - psbi->rcScrollBar.top,
top_selected ? 0x0f0000 : PATCOPY);
psbi->rcScrollBar.left += psbi->dxyLineButton - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP);
PatBlt (hdc,
psbi->rcScrollBar.left + thumbSize,
psbi->rcScrollBar.top,
psbi->rcScrollBar.right - psbi->rcScrollBar.left - thumbSize,
psbi->rcScrollBar.bottom - psbi->rcScrollBar.top,
bottom_selected ? 0x0f0000 : PATCOPY);
psbi->rcScrollBar.right = psbi->rcScrollBar.left + thumbSize;
}
/* Draw the thumb */
DrawEdge (hdc, &psbi->rcScrollBar, EDGE_RAISED, BF_RECT | BF_MIDDLE);
/* cleanup */
SelectObject (hdc, hSavePen);
SelectObject (hdc, hSaveBrush);
}
/* Ported from WINE20020904 */
static void
SCROLL_DrawMovingThumb (HDC hdc, RECT * rect, BOOL vertical, int arrowSize, int thumbSize, PSCROLLBARINFO psbi)
{
INT pos = SCROLL_TrackingPos;
INT max_size;
if ( vertical )
max_size = psbi->rcScrollBar.bottom - psbi->rcScrollBar.top;
else
max_size = psbi->rcScrollBar.right - psbi->rcScrollBar.left;
max_size -= (arrowSize - SCROLL_ARROW_THUMB_OVERLAP) + thumbSize;
if (pos < (arrowSize - SCROLL_ARROW_THUMB_OVERLAP))
pos = (arrowSize - SCROLL_ARROW_THUMB_OVERLAP);
else if (pos > max_size)
pos = max_size;
SCROLL_DrawInterior (SCROLL_TrackingWin, hdc, SCROLL_TrackingBar, vertical, arrowSize, psbi);
SCROLL_MovingThumb = !SCROLL_MovingThumb;
}
/* Ported from WINE20020904 */
/* Draw the scroll bar arrows. */
static void
SCROLL_DrawArrows (HDC hdc, PSCROLLBARINFO info,
RECT * rect, INT arrowSize, BOOL vertical,
BOOL top_pressed, BOOL bottom_pressed)
{
RECT r1, r2;
int scrollDirFlag1, scrollDirFlag2;
r1 = r2 = *rect;
if (vertical)
{
scrollDirFlag1 = DFCS_SCROLLUP;
scrollDirFlag2 = DFCS_SCROLLDOWN;
r1.bottom = r1.top + arrowSize;
r2.top = r2.bottom - arrowSize;
}
else
{
scrollDirFlag1 = DFCS_SCROLLLEFT;
scrollDirFlag2 = DFCS_SCROLLRIGHT;
r1.right = r1.left + arrowSize;
r2.left = r2.right - arrowSize;
}
DrawFrameControl (hdc, &r1, DFC_SCROLL,
scrollDirFlag1 | (top_pressed ? (DFCS_PUSHED | DFCS_FLAT) : 0)
/* | (info.flags&ESB_DISABLE_LTUP ? DFCS_INACTIVE : 0) */
);
DrawFrameControl (hdc, &r2, DFC_SCROLL,
scrollDirFlag2 | (bottom_pressed ? (DFCS_PUSHED | DFCS_FLAT) : 0)
/* | (info.flags&ESB_DISABLE_RTDN ? DFCS_INACTIVE : 0) */
);
}
/* Ported from WINE20020904 */
/* Redraw the whole scrollbar. */
void
SCROLL_DrawScrollBar (HWND hwnd, HDC hdc, INT nBar,
BOOL arrows, BOOL interior)
{
INT arrowSize = 0;
INT thumbSize;
SCROLLBARINFO info;
BOOL Save_SCROLL_MovingThumb = SCROLL_MovingThumb;
BOOL vertical;
info.cbSize = sizeof(SCROLLBARINFO);
NtUserGetScrollBarInfo (hwnd, nBar, &info);
thumbSize = info.xyThumbBottom - info.xyThumbTop;
switch ( nBar )
{
case SB_HORZ:
vertical = FALSE;
break;
case SB_VERT:
vertical = TRUE;
break;
case SB_CTL:
vertical = (GetWindowLongW(hwnd,GWL_STYLE)&SBS_VERT) != 0;
break;
#ifdef DBG
default:
DASSERT(!"SCROLL_DrawScrollBar() called with invalid nBar");
break;
#endif /* DBG */
}
if (vertical)
arrowSize = GetSystemMetrics(SM_CXVSCROLL);
else
arrowSize = GetSystemMetrics(SM_CYHSCROLL);
if (IsRectEmpty (&(info.rcScrollBar))) goto END;
if (Save_SCROLL_MovingThumb && (SCROLL_TrackingWin == hwnd) && (SCROLL_TrackingBar == nBar))
{
SCROLL_DrawMovingThumb (hdc, &(info.rcScrollBar), vertical, arrowSize, thumbSize, &info);
}
/* Draw the arrows */
if (arrows && arrowSize)
{
if (SCROLL_trackVertical == TRUE /* && GetCapture () == hwnd */)
{
SCROLL_DrawArrows (hdc, &info, &(info.rcScrollBar), arrowSize, vertical,
(SCROLL_trackHitTest == SCROLL_TOP_ARROW),
(SCROLL_trackHitTest == SCROLL_BOTTOM_ARROW));
}
else
{
SCROLL_DrawArrows (hdc, &info, &(info.rcScrollBar), arrowSize, vertical, FALSE, FALSE);
}
}
if (interior)
{
SCROLL_DrawInterior (hwnd, hdc, nBar, vertical, arrowSize, &info);
}
if (Save_SCROLL_MovingThumb &&
(SCROLL_TrackingWin == hwnd) && (SCROLL_TrackingBar == nBar))
SCROLL_DrawMovingThumb (hdc, &info.rcScrollBar, vertical, arrowSize, thumbSize, &info);
/* if scroll bar has focus, reposition the caret */
/* if (hwnd == GetFocus () && (nBar == SB_CTL))
{
if (nBar == SB_HORZ)
{
SetCaretPos (info.dxyLineButton + 1, info.rcScrollBar.top + 1);
}
else if (nBAR == SB_VERT)
{
SetCaretPos (info.rcScrollBar.top + 1, info.dxyLineButton + 1);
}
} */
END:;
/* WIN_ReleaseWndPtr(wndPtr); */
}
/* FUNCTIONS ******************************************************************/
/*
* @unimplemented
*/
WINBOOL STDCALL
EnableScrollBar(HWND hWnd, UINT wSBflags, UINT wArrows)
{
UNIMPLEMENTED;
return FALSE;
}
/*
* @implemented
*/
WINBOOL STDCALL
GetScrollBarInfo(HWND hwnd, LONG idObject, PSCROLLBARINFO psbi)
{
SCROLLBARINFO sbi;
WINBOOL ret;
if(!psbi)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
RtlCopyMemory(&sbi, psbi, sizeof(SCROLLBARINFO));
ret = NtUserGetScrollBarInfo (hwnd, idObject, psbi);
if(ret)
RtlCopyMemory(psbi, &sbi, sizeof(SCROLLBARINFO));
return ret;
}
/*
* @unimplemented
*/
WINBOOL STDCALL
GetScrollInfo (HWND hwnd, int fnBar, LPSCROLLINFO lpsi)
{
UNIMPLEMENTED;
return FALSE;
}
/*
* @unimplemented
*/
int STDCALL
GetScrollPos (HWND hWnd, int nBar)
{
UNIMPLEMENTED;
return 0;
}
/*
* @unimplemented
*/
WINBOOL STDCALL
GetScrollRange (HWND hWnd, int nBar, LPINT lpMinPos, LPINT lpMaxPos)
{
UNIMPLEMENTED;
return FALSE;
}
/*
* @unimplemented
*/
int STDCALL
SetScrollInfo (HWND hwnd, int fnBar, LPCSCROLLINFO lpsi, WINBOOL fRedraw)
{
UNIMPLEMENTED;
return 0;
}
/*
* @unimplemented
*/
int STDCALL
SetScrollPos (HWND hWnd, int nBar, int nPos, WINBOOL bRedraw)
{
UNIMPLEMENTED;
return 0;
}
/*
* @unimplemented
*/
WINBOOL STDCALL
SetScrollRange (HWND hWnd,
int nBar, int nMinPos, int nMaxPos, WINBOOL bRedraw)
{
UNIMPLEMENTED;
return FALSE;
}
/*
* @implemented
*/
WINBOOL STDCALL
ShowScrollBar (HWND hWnd, int wBar, WINBOOL bShow)
{
return (WINBOOL)NtUserShowScrollBar (hWnd, wBar, bShow);
}
Reference in a new issue View git blame Copy permalink