2 * Desktop window class.
4 * Copyright 1994 Alexandre Julliard
17 #include "wine/winuser16.h"
19 /**********************************************************************/
21 DESKTOP_DRIVER *DESKTOP_Driver = NULL;
23 /***********************************************************************
24 * DESKTOP_IsSingleWindow
26 BOOL DESKTOP_IsSingleWindow(void)
29 DESKTOP *pDesktop = (DESKTOP *) WIN_GetDesktop()->wExtra;
30 retvalue = MONITOR_IsSingleWindow(pDesktop->pPrimaryMonitor);
35 /***********************************************************************
36 * DESKTOP_GetScreenWidth
38 * Return the width of the screen associated to the current desktop.
40 int DESKTOP_GetScreenWidth()
43 DESKTOP *pDesktop = (DESKTOP *) WIN_GetDesktop()->wExtra;
44 retvalue = MONITOR_GetWidth(pDesktop->pPrimaryMonitor);
50 /***********************************************************************
51 * DESKTOP_GetScreenHeight
53 * Return the height of the screen associated to the current desktop.
55 int DESKTOP_GetScreenHeight()
58 DESKTOP *pDesktop = (DESKTOP *) WIN_GetDesktop()->wExtra;
59 retvalue = MONITOR_GetHeight(pDesktop->pPrimaryMonitor);
65 /***********************************************************************
66 * DESKTOP_GetScreenDepth
68 * Return the depth of the screen associated to the current desktop.
70 int DESKTOP_GetScreenDepth()
73 DESKTOP *pDesktop = (DESKTOP *) WIN_GetDesktop()->wExtra;
74 retvalue = MONITOR_GetDepth(pDesktop->pPrimaryMonitor);
80 /***********************************************************************
83 * Load a bitmap from a file. Used by SetDeskWallPaper().
85 static HBITMAP DESKTOP_LoadBitmap( HDC hdc, const char *filename )
87 BITMAPFILEHEADER *fileHeader;
88 BITMAPINFO *bitmapInfo;
94 /* Read all the file into memory */
96 if ((file = _lopen( filename, OF_READ )) == HFILE_ERROR)
98 UINT len = GetWindowsDirectoryA( NULL, 0 );
99 if (!(buffer = HeapAlloc( GetProcessHeap(), 0,
100 len + strlen(filename) + 2 )))
102 GetWindowsDirectoryA( buffer, len + 1 );
103 strcat( buffer, "\\" );
104 strcat( buffer, filename );
105 file = _lopen( buffer, OF_READ );
106 HeapFree( GetProcessHeap(), 0, buffer );
108 if (file == HFILE_ERROR) return 0;
109 size = _llseek( file, 0, 2 );
110 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, size )))
115 _llseek( file, 0, 0 );
116 size = _lread( file, buffer, size );
118 fileHeader = (BITMAPFILEHEADER *)buffer;
119 bitmapInfo = (BITMAPINFO *)(buffer + sizeof(BITMAPFILEHEADER));
121 /* Check header content */
122 if ((fileHeader->bfType != 0x4d42) || (size < fileHeader->bfSize))
124 HeapFree( GetProcessHeap(), 0, buffer );
127 hbitmap = CreateDIBitmap( hdc, &bitmapInfo->bmiHeader, CBM_INIT,
128 buffer + fileHeader->bfOffBits,
129 bitmapInfo, DIB_RGB_COLORS );
130 HeapFree( GetProcessHeap(), 0, buffer );
135 /***********************************************************************
136 * DESKTOP_DoEraseBkgnd
138 * Handle the WM_ERASEBKGND message.
140 static LRESULT DESKTOP_DoEraseBkgnd( HWND hwnd, HDC hdc,
141 DESKTOP *desktopPtr )
144 WND* Wnd = WIN_FindWndPtr( hwnd );
146 if (Wnd->hrgnUpdate > 1) DeleteObject( Wnd->hrgnUpdate );
149 WIN_ReleaseWndPtr(Wnd);
151 GetClientRect( hwnd, &rect );
153 /* Paint desktop pattern (only if wall paper does not cover everything) */
155 if (!desktopPtr->hbitmapWallPaper ||
156 (!desktopPtr->fTileWallPaper && ((desktopPtr->bitmapSize.cx < rect.right) ||
157 (desktopPtr->bitmapSize.cy < rect.bottom))))
159 /* Set colors in case pattern is a monochrome bitmap */
160 SetBkColor( hdc, RGB(0,0,0) );
161 SetTextColor( hdc, GetSysColor(COLOR_BACKGROUND) );
162 FillRect( hdc, &rect, desktopPtr->hbrushPattern );
165 /* Paint wall paper */
167 if (desktopPtr->hbitmapWallPaper)
170 HDC hMemDC = CreateCompatibleDC( hdc );
172 SelectObject( hMemDC, desktopPtr->hbitmapWallPaper );
174 if (desktopPtr->fTileWallPaper)
176 for (y = 0; y < rect.bottom; y += desktopPtr->bitmapSize.cy)
177 for (x = 0; x < rect.right; x += desktopPtr->bitmapSize.cx)
178 BitBlt( hdc, x, y, desktopPtr->bitmapSize.cx,
179 desktopPtr->bitmapSize.cy, hMemDC, 0, 0, SRCCOPY );
183 x = (rect.left + rect.right - desktopPtr->bitmapSize.cx) / 2;
184 y = (rect.top + rect.bottom - desktopPtr->bitmapSize.cy) / 2;
187 BitBlt( hdc, x, y, desktopPtr->bitmapSize.cx,
188 desktopPtr->bitmapSize.cy, hMemDC, 0, 0, SRCCOPY );
197 /***********************************************************************
198 * DesktopWndProc_locked
200 * Window procedure for the desktop window.
202 static inline LRESULT WINAPI DesktopWndProc_locked( WND *wndPtr, UINT message,
203 WPARAM wParam, LPARAM lParam )
205 DESKTOP *desktopPtr = (DESKTOP *)wndPtr->wExtra;
206 HWND hwnd = wndPtr->hwndSelf;
208 /* Most messages are ignored (we DON'T call DefWindowProc) */
212 /* Warning: this message is sent directly by */
213 /* WIN_CreateDesktopWindow() and does not contain a valid lParam */
215 desktopPtr->hbrushPattern = 0;
216 desktopPtr->hbitmapWallPaper = 0;
218 SetDeskWallPaper( (LPSTR)-1 );
222 if(!DESKTOP_IsSingleWindow())
224 return DESKTOP_DoEraseBkgnd( hwnd, (HDC)wParam, desktopPtr );
227 if ((wParam & 0xfff0) != SC_CLOSE)
229 ExitWindows16( 0, 0 );
232 return (LRESULT)SetCursor16( LoadCursor16( 0, IDC_ARROW16 ) );
238 /***********************************************************************
241 * This is just a wrapper for the DesktopWndProc which does windows
242 * locking and unlocking.
244 LRESULT WINAPI DesktopWndProc( HWND hwnd, UINT message,
245 WPARAM wParam, LPARAM lParam )
247 WND *wndPtr = WIN_FindWndPtr( hwnd );
248 LRESULT retvalue = DesktopWndProc_locked(wndPtr,message,wParam,lParam);
250 WIN_ReleaseWndPtr(wndPtr);
254 /***********************************************************************
255 * PaintDesktop (USER32.415)
258 BOOL WINAPI PaintDesktop(HDC hdc)
261 HWND hwnd = GetDesktopWindow();
262 WND *wndPtr = WIN_FindWndPtr( hwnd );
263 DESKTOP *desktopPtr = (DESKTOP *)wndPtr->wExtra;
264 retvalue = DESKTOP_DoEraseBkgnd( hwnd, hdc, desktopPtr );
265 WIN_ReleaseWndPtr(wndPtr);
270 /***********************************************************************
271 * SetDeskPattern (USER.279)
273 BOOL16 WINAPI SetDeskPattern(void)
276 GetProfileStringA( "desktop", "Pattern", "(None)", buffer, 100 );
277 return DESKTOP_SetPattern( buffer );
281 /***********************************************************************
282 * SetDeskWallPaper16 (USER.285)
284 BOOL16 WINAPI SetDeskWallPaper16( LPCSTR filename )
286 return SetDeskWallPaper( filename );
290 /***********************************************************************
291 * SetDeskWallPaper32 (USER32.475)
293 * FIXME: is there a unicode version?
295 BOOL WINAPI SetDeskWallPaper( LPCSTR filename )
300 WND *wndPtr = WIN_GetDesktop();
301 DESKTOP *desktopPtr = (DESKTOP *)wndPtr->wExtra;
303 if (filename == (LPSTR)-1)
305 GetProfileStringA( "desktop", "WallPaper", "(None)", buffer, 256 );
309 hbitmap = DESKTOP_LoadBitmap( hdc, filename );
311 if (desktopPtr->hbitmapWallPaper) DeleteObject( desktopPtr->hbitmapWallPaper );
312 desktopPtr->hbitmapWallPaper = hbitmap;
313 desktopPtr->fTileWallPaper = GetProfileIntA( "desktop", "TileWallPaper", 0 );
317 GetObjectA( hbitmap, sizeof(bmp), &bmp );
318 desktopPtr->bitmapSize.cx = (bmp.bmWidth != 0) ? bmp.bmWidth : 1;
319 desktopPtr->bitmapSize.cy = (bmp.bmHeight != 0) ? bmp.bmHeight : 1;
321 WIN_ReleaseDesktop();
326 /***********************************************************************
329 * Set the desktop pattern.
331 BOOL DESKTOP_SetPattern( LPCSTR pattern )
333 WND *wndPtr = WIN_GetDesktop();
334 DESKTOP *desktopPtr = (DESKTOP *)wndPtr->wExtra;
337 if (desktopPtr->hbrushPattern) DeleteObject( desktopPtr->hbrushPattern );
338 memset( pat, 0, sizeof(pat) );
339 if (pattern && sscanf( pattern, " %d %d %d %d %d %d %d %d",
340 &pat[0], &pat[1], &pat[2], &pat[3],
341 &pat[4], &pat[5], &pat[6], &pat[7] ))
347 for (i = 0; i < 8; i++) pattern[i] = pat[i] & 0xffff;
348 hbitmap = CreateBitmap( 8, 8, 1, 1, (LPSTR)pattern );
349 desktopPtr->hbrushPattern = CreatePatternBrush( hbitmap );
350 DeleteObject( hbitmap );
352 else desktopPtr->hbrushPattern = CreateSolidBrush( GetSysColor(COLOR_BACKGROUND) );
353 WIN_ReleaseDesktop();