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fix wallpaper style center and implement tile.

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svn path=/trunk/; revision=19714
This commit is contained in:
Brandon Turner 2005-11-28 01:09:27 +00:00
parent 305379b387
commit ce6ccd9bb5
1 changed files with 99 additions and 16 deletions
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115
reactos/subsys/win32k/ntuser/desktop.c
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@ -1227,35 +1227,118 @@ NtUserPaintDesktop(HDC hDC)
sz.cx = DeskWin->WindowRect.right - DeskWin->WindowRect.left;
sz.cy = DeskWin->WindowRect.bottom - DeskWin->WindowRect.top;
x = (sz.cx / 2) - (WinSta->cxWallpaper / 2);
y = (sz.cy / 2) - (WinSta->cyWallpaper / 2);
if(WinSta->WallpaperMode == wmStretch ||
WinSta->WallpaperMode == wmTile)
{
x = 0;
y = 0;
}
else
{
x = (sz.cx / 2) - (WinSta->cxWallpaper / 2);
y = (sz.cy / 2) - (WinSta->cyWallpaper / 2);
}
hWallpaperDC = NtGdiCreateCompatibleDC(hDC);
if(hWallpaperDC != NULL)
{
HBITMAP hOldBitmap;
if(x > 0 || y > 0)
{
/* FIXME - clip out the bitmap */
PreviousBrush = NtGdiSelectObject(hDC, DesktopBrush);
NtGdiPatBlt(hDC, Rect.left, Rect.top, Rect.right, Rect.bottom, PATCOPY);
NtGdiSelectObject(hDC, PreviousBrush);
/* FIXME - clip out the bitmap
can be replaced with "NtGdiPatBlt(hDC, x, y, WinSta->cxWallpaper, WinSta->cyWallpaper, PATCOPY | DSTINVERT);"
once we support DSTINVERT */
PreviousBrush = NtGdiSelectObject(hDC, DesktopBrush);
NtGdiPatBlt(hDC, Rect.left, Rect.top, Rect.right, Rect.bottom, PATCOPY);
NtGdiSelectObject(hDC, PreviousBrush);
}
//Do not fill the background after it is painted no matter the size of the picture
doPatBlt = FALSE;
hOldBitmap = NtGdiSelectObject(hWallpaperDC, WinSta->hbmWallpaper);
if(WinSta->WallpaperMode == wmStretch)
{
#if 0 //Broken Stretch Code
/* Fix me, stretch the bitmap to fit the screen. I'm not smart enough to do this :( */
BITMAPINFO bmINFO;
LPVOID pBits;
bmINFO.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
/* Get bits */
NtGdiGetDIBits(hDC,
WinSta->hbmWallpaper,
0,
WinSta->cyWallpaper,
NULL, // what goes here?
&bmINFO,
DIB_RGB_COLORS);
bmINFO.bmiHeader.biCompression = BI_RGB;
pBits = ExAllocatePool(PagedPool,bmINFO.bmiHeader.biSizeImage);
if(pBits == NULL)
{
doPatBlt = TRUE;
}
else
{
NtGdiGetDIBits(hDC,
WinSta->hbmWallpaper,
0,
WinSta->cyWallpaper,
(LPVOID)pBits, // what goes here?
&bmINFO,
DIB_RGB_COLORS);
DPRINT1("Before Draw\n");
/* Stretch it to fit the screen */
NtGdiStretchDIBits(hDC,
0,
0,
Rect.right,
Rect.bottom,
0,
0,
WinSta->cxWallpaper,
WinSta->cyWallpaper,
(LPVOID)pBits, // get this from NtGdiGetDiBits?
&bmINFO, // get this from NtGdiGetDiBits?
DIB_RGB_COLORS,
SRCCOPY);
ExFreePool(pBits);
}
#else
/* Draw nothing */
doPatBlt = TRUE;
#endif //Broken Stretch Code
}
else if(WinSta->WallpaperMode == wmTile)
{
for(y = 0; y < Rect.bottom; y += WinSta->cyWallpaper)
{
for(x = 0; x < Rect.right; x += WinSta->cxWallpaper)
{
NtGdiBitBlt(hDC, x, y, WinSta->cxWallpaper, WinSta->cyWallpaper, hWallpaperDC, 0, 0, SRCCOPY);
}
}
}
else
doPatBlt = FALSE;
hOldBitmap = NtGdiSelectObject(hWallpaperDC, WinSta->hbmWallpaper);
NtGdiBitBlt(hDC, x, y, WinSta->cxWallpaper, WinSta->cyWallpaper, hWallpaperDC, 0, 0, SRCCOPY);
NtGdiSelectObject(hWallpaperDC, hOldBitmap);
{
NtGdiBitBlt(hDC, x, y, WinSta->cxWallpaper, WinSta->cyWallpaper, hWallpaperDC, 0, 0, SRCCOPY);
}
NtGdiSelectObject(hWallpaperDC, hOldBitmap);
NtGdiDeleteDC(hWallpaperDC);
}
}
}
/* Back ground is set to none, clear the screen */
if (doPatBlt)
{
PreviousBrush = NtGdiSelectObject(hDC, DesktopBrush);