2 * Desktop window class.
4 * Copyright 1994 Alexandre Julliard
6 static char Copyright[] = "Copyright Alexandre Julliard, 1994";
20 /***********************************************************************
23 * Load a bitmap from a file. Used by SetDeskWallPaper().
25 static HBITMAP DESKTOP_LoadBitmap( HDC hdc, char *filename )
27 BITMAPFILEHEADER *fileHeader;
28 BITMAPINFO *bitmapInfo;
30 char *unixFileName, *buffer;
34 /* Read all the file into memory */
36 if (!(unixFileName = DOS_GetUnixFileName( filename ))) return 0;
37 if ((file = open( unixFileName, O_RDONLY )) == -1) return 0;
38 size = lseek( file, 0, SEEK_END );
39 if (!(buffer = (char *)malloc( size )))
44 lseek( file, 0, SEEK_SET );
45 size = read( file, buffer, size );
47 fileHeader = (BITMAPFILEHEADER *)buffer;
48 bitmapInfo = (BITMAPINFO *)(buffer + sizeof(BITMAPFILEHEADER));
50 /* Check header content */
51 if ((fileHeader->bfType != 0x4d42) || (size < fileHeader->bfSize))
56 hbitmap = CreateDIBitmap( hdc, &bitmapInfo->bmiHeader, CBM_INIT,
57 buffer + fileHeader->bfOffBits,
58 bitmapInfo, DIB_RGB_COLORS );
64 /***********************************************************************
65 * DESKTOP_DoEraseBkgnd
67 * Handle the WM_ERASEBKGND message.
69 static LONG DESKTOP_DoEraseBkgnd( HWND hwnd, HDC hdc, DESKTOPINFO *infoPtr )
72 GetClientRect( hwnd, &rect );
74 /* Paint desktop pattern (only if wall paper does not cover everything) */
76 if (!infoPtr->hbitmapWallPaper ||
77 (!infoPtr->fTileWallPaper && ((infoPtr->bitmapSize.cx < rect.right) ||
78 (infoPtr->bitmapSize.cy < rect.bottom))))
80 /* Set colors in case pattern is a monochrome bitmap */
81 SetBkColor( hdc, RGB(0,0,0) );
82 SetTextColor( hdc, GetSysColor(COLOR_BACKGROUND) );
83 FillRect( hdc, &rect, infoPtr->hbrushPattern );
86 /* Paint wall paper */
88 if (infoPtr->hbitmapWallPaper)
92 if (infoPtr->fTileWallPaper)
94 for (y = 0; y < rect.bottom; y += infoPtr->bitmapSize.cy)
95 for (x = 0; x < rect.right; x += infoPtr->bitmapSize.cx)
96 GRAPH_DrawBitmap( hdc, infoPtr->hbitmapWallPaper,
98 infoPtr->bitmapSize.cx,
99 infoPtr->bitmapSize.cy );
103 x = (rect.left + rect.right - infoPtr->bitmapSize.cx) / 2;
104 y = (rect.top + rect.bottom - infoPtr->bitmapSize.cy) / 2;
107 GRAPH_DrawBitmap( hdc, infoPtr->hbitmapWallPaper, x, y, 0, 0,
108 infoPtr->bitmapSize.cx, infoPtr->bitmapSize.cy );
116 /***********************************************************************
119 * Initialize the desktop window private information.
123 HWND hwnd = GetDesktopWindow();
124 WND *wndPtr = WIN_FindWndPtr( hwnd );
125 DESKTOPINFO *infoPtr = (DESKTOPINFO *)wndPtr->wExtra;
127 infoPtr->hbrushPattern = 0;
128 infoPtr->hbitmapWallPaper = 0;
130 SetDeskWallPaper( (LPSTR)-1 );
131 if (rootWindow != DefaultRootWindow(display))
133 HDC hdc = GetDC( hwnd );
134 DESKTOP_DoEraseBkgnd( hwnd, hdc, infoPtr );
135 ReleaseDC( hwnd, hdc );
141 /***********************************************************************
144 * Window procedure for the desktop window.
146 LONG DesktopWndProc ( HWND hwnd, WORD message, WORD wParam, LONG lParam )
148 WND *wndPtr = WIN_FindWndPtr( hwnd );
149 DESKTOPINFO *infoPtr = (DESKTOPINFO *)wndPtr->wExtra;
151 /* Most messages are ignored (we DON'T call DefWindowProc) */
155 /* Warning: this message is sent directly by */
156 /* WIN_CreateDesktopWindow() and does not contain a valid lParam */
158 infoPtr->hbrushPattern = 0;
159 infoPtr->hbitmapWallPaper = 0;
161 SetDeskWallPaper( (LPSTR)-1 );
165 if (rootWindow == DefaultRootWindow(display)) return 1;
166 return DESKTOP_DoEraseBkgnd( hwnd, (HDC)wParam, infoPtr );
173 /***********************************************************************
174 * SetDeskPattern (USER.279)
176 BOOL SetDeskPattern(void)
179 GetProfileString( "desktop", "Pattern", "(None)", buffer, 100 );
180 return DESKTOP_SetPattern( buffer );
184 /***********************************************************************
185 * SetDeskWallPaper (USER.285)
187 BOOL SetDeskWallPaper( LPSTR filename )
192 WND *wndPtr = WIN_FindWndPtr( GetDesktopWindow() );
193 DESKTOPINFO *infoPtr = (DESKTOPINFO *)wndPtr->wExtra;
195 if (filename == (LPSTR)-1)
197 GetProfileString( "desktop", "WallPaper", "(None)", buffer, 256 );
201 hbitmap = DESKTOP_LoadBitmap( hdc, filename );
203 if (infoPtr->hbitmapWallPaper) DeleteObject( infoPtr->hbitmapWallPaper );
204 infoPtr->hbitmapWallPaper = hbitmap;
205 infoPtr->fTileWallPaper = GetProfileInt( "desktop", "TileWallPaper", 0 );
209 GetObject( hbitmap, sizeof(bmp), (LPSTR)&bmp );
210 infoPtr->bitmapSize.cx = (bmp.bmWidth != 0) ? bmp.bmWidth : 1;
211 infoPtr->bitmapSize.cy = (bmp.bmHeight != 0) ? bmp.bmHeight : 1;
217 /***********************************************************************
220 * Set the desktop pattern.
222 BOOL DESKTOP_SetPattern(char *pattern )
224 WND *wndPtr = WIN_FindWndPtr( GetDesktopWindow() );
225 DESKTOPINFO *infoPtr = (DESKTOPINFO *)wndPtr->wExtra;
228 if (infoPtr->hbrushPattern) DeleteObject( infoPtr->hbrushPattern );
229 memset( pat, 0, sizeof(pat) );
230 if (pattern && sscanf( pattern, " %d %d %d %d %d %d %d %d",
231 &pat[0], &pat[1], &pat[2], &pat[3],
232 &pat[4], &pat[5], &pat[6], &pat[7] ))
238 for (i = 0; i < 8; i++) pattern[i] = pat[i] & 0xffff;
239 hbitmap = CreateBitmap( 8, 8, 1, 1, (LPSTR)pattern );
240 infoPtr->hbrushPattern = CreatePatternBrush( hbitmap );
241 DeleteObject( hbitmap );
243 else infoPtr->hbrushPattern = CreateSolidBrush( GetSysColor(COLOR_BACKGROUND) );