406 lines
10 KiB
C
406 lines
10 KiB
C
/*
|
|
* Window painting functions
|
|
*
|
|
* Copyright 1993 Alexandre Julliard
|
|
*/
|
|
|
|
static char Copyright[] = "Copyright Alexandre Julliard, 1993";
|
|
|
|
#include <X11/Xlib.h>
|
|
|
|
#include "win.h"
|
|
#include "message.h"
|
|
|
|
/* Last CTLCOLOR id */
|
|
#define CTLCOLOR_MAX CTLCOLOR_STATIC
|
|
|
|
|
|
/***********************************************************************
|
|
* BeginPaint (USER.39)
|
|
*/
|
|
HDC BeginPaint( HWND hwnd, LPPAINTSTRUCT lps )
|
|
{
|
|
HRGN hrgnUpdate;
|
|
WND * wndPtr = WIN_FindWndPtr( hwnd );
|
|
if (!wndPtr) return 0;
|
|
|
|
hrgnUpdate = wndPtr->hrgnUpdate; /* Save update region */
|
|
if (!hrgnUpdate) /* Create an empty region */
|
|
if (!(hrgnUpdate = CreateRectRgn( 0, 0, 0, 0 ))) return 0;
|
|
|
|
if (!(lps->hdc = GetDCEx( hwnd, hrgnUpdate,
|
|
DCX_INTERSECTRGN | DCX_USESTYLE ))) return 0;
|
|
GetRgnBox( InquireVisRgn(lps->hdc), &lps->rcPaint );
|
|
|
|
if (wndPtr->hrgnUpdate || (wndPtr->flags & WIN_INTERNAL_PAINT))
|
|
MSG_DecPaintCount( wndPtr->hmemTaskQ );
|
|
|
|
wndPtr->hrgnUpdate = 0;
|
|
wndPtr->flags &= ~(WIN_NEEDS_BEGINPAINT | WIN_INTERNAL_PAINT);
|
|
|
|
SendMessage( hwnd, WM_NCPAINT, hrgnUpdate, 0 );
|
|
DeleteObject( hrgnUpdate );
|
|
|
|
if (!(wndPtr->flags & WIN_ERASE_UPDATERGN)) lps->fErase = TRUE;
|
|
else lps->fErase = !SendMessage( hwnd, WM_ERASEBKGND, lps->hdc, 0 );
|
|
|
|
return lps->hdc;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* EndPaint (USER.40)
|
|
*/
|
|
void EndPaint( HWND hwnd, LPPAINTSTRUCT lps )
|
|
{
|
|
ReleaseDC( hwnd, lps->hdc );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* FillWindow (USER.324)
|
|
*/
|
|
void FillWindow( HWND hwndParent, HWND hwnd, HDC hdc, HBRUSH hbrush )
|
|
{
|
|
RECT rect;
|
|
GetClientRect( hwnd, &rect );
|
|
PaintRect( hwndParent, hwnd, hdc, hbrush, &rect );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* PaintRect (USER.325)
|
|
*/
|
|
void PaintRect(HWND hwndParent, HWND hwnd, HDC hdc, HBRUSH hbrush, LPRECT rect)
|
|
{
|
|
/* Send WM_CTLCOLOR message if needed */
|
|
|
|
if (hbrush <= CTLCOLOR_MAX)
|
|
{
|
|
if (!hwndParent) return;
|
|
hbrush = (HBRUSH)SendMessage( hwndParent, WM_CTLCOLOR,
|
|
hdc, hwnd | (hbrush << 16) );
|
|
}
|
|
if (hbrush) FillRect( hdc, rect, hbrush );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* RedrawWindow (USER.290)
|
|
*/
|
|
BOOL RedrawWindow( HWND hwnd, LPRECT rectUpdate, HRGN hrgnUpdate, UINT flags )
|
|
{
|
|
HRGN tmpRgn, hrgn = 0;
|
|
RECT rectClient, rectWindow;
|
|
WND * wndPtr;
|
|
|
|
if (!hwnd) hwnd = GetDesktopWindow();
|
|
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
|
|
|
|
GetClientRect( hwnd, &rectClient );
|
|
rectWindow = wndPtr->rectWindow;
|
|
OffsetRect(&rectWindow, -wndPtr->rectClient.left, -wndPtr->rectClient.top);
|
|
|
|
if (flags & RDW_INVALIDATE) /* Invalidate */
|
|
{
|
|
if (flags & RDW_ERASE) wndPtr->flags |= WIN_ERASE_UPDATERGN;
|
|
|
|
if (hrgnUpdate) /* Invalidate a region */
|
|
{
|
|
if (flags & RDW_FRAME) tmpRgn = CreateRectRgnIndirect(&rectWindow);
|
|
else tmpRgn = CreateRectRgnIndirect( &rectClient );
|
|
if (!tmpRgn) return FALSE;
|
|
hrgn = CreateRectRgn( 0, 0, 0, 0 );
|
|
if (CombineRgn( hrgn, hrgnUpdate, tmpRgn, RGN_AND ) == NULLREGION)
|
|
{
|
|
DeleteObject( hrgn );
|
|
hrgn = 0;
|
|
}
|
|
DeleteObject( tmpRgn );
|
|
}
|
|
else /* Invalidate a rectangle */
|
|
{
|
|
RECT rect;
|
|
if (flags & RDW_FRAME)
|
|
{
|
|
if (rectUpdate) IntersectRect( &rect, rectUpdate, &rectWindow);
|
|
else rect = rectWindow;
|
|
}
|
|
else
|
|
{
|
|
if (rectUpdate) IntersectRect( &rect, rectUpdate, &rectClient);
|
|
else rect = rectClient;
|
|
}
|
|
if (!IsRectEmpty(&rect)) hrgn = CreateRectRgnIndirect( &rect );
|
|
}
|
|
|
|
/* Set update region */
|
|
|
|
if (hrgn)
|
|
{
|
|
if (!wndPtr->hrgnUpdate)
|
|
{
|
|
wndPtr->hrgnUpdate = hrgn;
|
|
if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
|
|
MSG_IncPaintCount( wndPtr->hmemTaskQ );
|
|
}
|
|
else
|
|
{
|
|
tmpRgn = CreateRectRgn( 0, 0, 0, 0 );
|
|
CombineRgn( tmpRgn, wndPtr->hrgnUpdate, hrgn, RGN_OR );
|
|
DeleteObject( wndPtr->hrgnUpdate );
|
|
DeleteObject( hrgn );
|
|
wndPtr->hrgnUpdate = tmpRgn;
|
|
}
|
|
}
|
|
flags |= RDW_FRAME; /* Force invalidating the frame of children */
|
|
}
|
|
else if (flags & RDW_VALIDATE) /* Validate */
|
|
{
|
|
if (flags & RDW_NOERASE) wndPtr->flags &= ~WIN_ERASE_UPDATERGN;
|
|
if (!(hrgn = CreateRectRgn( 0, 0, 0, 0 ))) return FALSE;
|
|
|
|
/* Remove frame from update region */
|
|
|
|
if (wndPtr->hrgnUpdate && (flags & RDW_NOFRAME))
|
|
{
|
|
if (!(tmpRgn = CreateRectRgnIndirect( &rectClient )))
|
|
return FALSE;
|
|
if (CombineRgn(hrgn,tmpRgn,wndPtr->hrgnUpdate,RGN_AND) == NULLREGION)
|
|
{
|
|
DeleteObject( hrgn );
|
|
hrgn = 0;
|
|
}
|
|
DeleteObject( tmpRgn );
|
|
DeleteObject( wndPtr->hrgnUpdate );
|
|
wndPtr->hrgnUpdate = hrgn;
|
|
hrgn = CreateRectRgn( 0, 0, 0, 0 );
|
|
}
|
|
|
|
/* Set update region */
|
|
|
|
if (wndPtr->hrgnUpdate)
|
|
{
|
|
int res;
|
|
if (hrgnUpdate) /* Validate a region */
|
|
{
|
|
res = CombineRgn(hrgn,wndPtr->hrgnUpdate,hrgnUpdate,RGN_DIFF);
|
|
}
|
|
else /* Validate a rectangle */
|
|
{
|
|
if (rectUpdate) tmpRgn = CreateRectRgnIndirect( rectUpdate );
|
|
else tmpRgn = CreateRectRgnIndirect( &rectWindow );
|
|
res = CombineRgn( hrgn, wndPtr->hrgnUpdate, tmpRgn, RGN_DIFF );
|
|
DeleteObject( tmpRgn );
|
|
}
|
|
DeleteObject( wndPtr->hrgnUpdate );
|
|
if (res == NULLREGION)
|
|
{
|
|
DeleteObject( hrgn );
|
|
wndPtr->hrgnUpdate = 0;
|
|
if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
|
|
MSG_DecPaintCount( wndPtr->hmemTaskQ );
|
|
}
|
|
else wndPtr->hrgnUpdate = hrgn;
|
|
}
|
|
}
|
|
|
|
/* Set/clear internal paint flag */
|
|
|
|
if (flags & RDW_INTERNALPAINT)
|
|
{
|
|
if (!wndPtr->hrgnUpdate && !(wndPtr->flags & WIN_INTERNAL_PAINT))
|
|
MSG_IncPaintCount( wndPtr->hmemTaskQ );
|
|
wndPtr->flags |= WIN_INTERNAL_PAINT;
|
|
}
|
|
else if (flags & RDW_NOINTERNALPAINT)
|
|
{
|
|
if (!wndPtr->hrgnUpdate && (wndPtr->flags & WIN_INTERNAL_PAINT))
|
|
MSG_DecPaintCount( wndPtr->hmemTaskQ );
|
|
wndPtr->flags &= ~WIN_INTERNAL_PAINT;
|
|
}
|
|
|
|
/* Erase/update window */
|
|
|
|
if (flags & RDW_UPDATENOW) UpdateWindow( hwnd );
|
|
else if (flags & RDW_ERASENOW)
|
|
{
|
|
HDC hdc = GetDCEx( hwnd, wndPtr->hrgnUpdate,
|
|
DCX_INTERSECTRGN | DCX_USESTYLE );
|
|
if (hdc)
|
|
{
|
|
SendMessage( hwnd, WM_NCPAINT, wndPtr->hrgnUpdate, 0 );
|
|
SendMessage( hwnd, WM_ERASEBKGND, hdc, 0 );
|
|
ReleaseDC( hwnd, hdc );
|
|
}
|
|
}
|
|
|
|
/* Recursively process children */
|
|
|
|
if (!(flags & RDW_NOCHILDREN) &&
|
|
((flags && RDW_ALLCHILDREN) || (wndPtr->dwStyle & WS_CLIPCHILDREN)))
|
|
{
|
|
if (hrgnUpdate)
|
|
{
|
|
HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
|
|
if (!hrgn) return TRUE;
|
|
for (hwnd = wndPtr->hwndChild; (hwnd); hwnd = wndPtr->hwndNext)
|
|
{
|
|
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) break;
|
|
CombineRgn( hrgn, hrgnUpdate, 0, RGN_COPY );
|
|
OffsetRgn( hrgn, -wndPtr->rectClient.left,
|
|
-wndPtr->rectClient.top );
|
|
RedrawWindow( hwnd, NULL, hrgn, flags );
|
|
}
|
|
DeleteObject( hrgn );
|
|
}
|
|
else
|
|
{
|
|
RECT rect;
|
|
for (hwnd = wndPtr->hwndChild; (hwnd); hwnd = wndPtr->hwndNext)
|
|
{
|
|
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) break;
|
|
if (rectUpdate)
|
|
{
|
|
rect = *rectUpdate;
|
|
OffsetRect( &rect, -wndPtr->rectClient.left,
|
|
-wndPtr->rectClient.top );
|
|
RedrawWindow( hwnd, &rect, 0, flags );
|
|
}
|
|
else RedrawWindow( hwnd, NULL, 0, flags );
|
|
}
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* UpdateWindow (USER.124)
|
|
*/
|
|
void UpdateWindow( HWND hwnd )
|
|
{
|
|
if (GetUpdateRect( hwnd, NULL, FALSE ))
|
|
{
|
|
if (IsWindowVisible( hwnd )) SendMessage( hwnd, WM_PAINT, 0, 0 );
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* InvalidateRgn (USER.126)
|
|
*/
|
|
void InvalidateRgn( HWND hwnd, HRGN hrgn, BOOL erase )
|
|
{
|
|
RedrawWindow( hwnd, NULL, hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* InvalidateRect (USER.125)
|
|
*/
|
|
void InvalidateRect( HWND hwnd, LPRECT rect, BOOL erase )
|
|
{
|
|
RedrawWindow( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* ValidateRgn (USER.128)
|
|
*/
|
|
void ValidateRgn( HWND hwnd, HRGN hrgn )
|
|
{
|
|
RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE | RDW_NOCHILDREN );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* ValidateRect (USER.127)
|
|
*/
|
|
void ValidateRect( HWND hwnd, LPRECT rect )
|
|
{
|
|
RedrawWindow( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetUpdateRect (USER.190)
|
|
*/
|
|
BOOL GetUpdateRect( HWND hwnd, LPRECT rect, BOOL erase )
|
|
{
|
|
WND * wndPtr = WIN_FindWndPtr( hwnd );
|
|
if (!wndPtr) return FALSE;
|
|
|
|
if (rect)
|
|
{
|
|
if (wndPtr->hrgnUpdate)
|
|
{
|
|
HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
|
|
if (GetUpdateRgn( hwnd, hrgn, erase ) == ERROR) return FALSE;
|
|
GetRgnBox( hrgn, rect );
|
|
DeleteObject( hrgn );
|
|
}
|
|
else SetRectEmpty( rect );
|
|
}
|
|
return (wndPtr->hrgnUpdate != 0);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetUpdateRgn (USER.237)
|
|
*/
|
|
int GetUpdateRgn( HWND hwnd, HRGN hrgn, BOOL erase )
|
|
{
|
|
HRGN hrgnClip;
|
|
int retval;
|
|
WND * wndPtr = WIN_FindWndPtr( hwnd );
|
|
if (!wndPtr) return ERROR;
|
|
|
|
if (!wndPtr->hrgnUpdate)
|
|
{
|
|
if (!(hrgnClip = CreateRectRgn( 0, 0, 0, 0 ))) return ERROR;
|
|
retval = CombineRgn( hrgn, hrgnClip, 0, RGN_COPY );
|
|
}
|
|
else
|
|
{
|
|
hrgnClip = CreateRectRgn( 0, 0,
|
|
wndPtr->rectClient.right-wndPtr->rectClient.left,
|
|
wndPtr->rectClient.bottom-wndPtr->rectClient.top );
|
|
if (!hrgnClip) return ERROR;
|
|
retval = CombineRgn( hrgn, wndPtr->hrgnUpdate, hrgnClip, RGN_AND );
|
|
if (erase)
|
|
{
|
|
HDC hdc = GetDCEx( hwnd, wndPtr->hrgnUpdate,
|
|
DCX_INTERSECTRGN | DCX_USESTYLE );
|
|
if (hdc)
|
|
{
|
|
SendMessage( hwnd, WM_ERASEBKGND, hdc, 0 );
|
|
ReleaseDC( hwnd, hdc );
|
|
}
|
|
}
|
|
}
|
|
DeleteObject( hrgnClip );
|
|
return retval;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* ExcludeUpdateRgn (USER.238)
|
|
*/
|
|
int ExcludeUpdateRgn( HDC hdc, HWND hwnd )
|
|
{
|
|
int retval;
|
|
HRGN hrgn;
|
|
WND * wndPtr;
|
|
|
|
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return ERROR;
|
|
if ((hrgn = CreateRectRgn( 0, 0, 0, 0 )) != 0)
|
|
{
|
|
retval = CombineRgn( hrgn, InquireVisRgn(hdc),
|
|
wndPtr->hrgnUpdate, RGN_DIFF );
|
|
if (retval) SelectVisRgn( hdc, hrgn );
|
|
DeleteObject( hrgn );
|
|
}
|
|
return retval;
|
|
}
|