2 * Desktop window class.
4 * Copyright 1994 Alexandre Julliard
16 /***********************************************************************
19 * Load a bitmap from a file. Used by SetDeskWallPaper().
21 static HBITMAP32
DESKTOP_LoadBitmap( HDC32 hdc
, const char *filename
)
23 BITMAPFILEHEADER
*fileHeader
;
24 BITMAPINFO
*bitmapInfo
;
30 /* Read all the file into memory */
32 if ((file
= _lopen32( filename
, OF_READ
)) == HFILE_ERROR32
)
34 UINT32 len
= GetWindowsDirectory32A( NULL
, 0 );
35 if (!(buffer
= HeapAlloc( SystemHeap
, 0, len
+ strlen(filename
) + 2 )))
37 GetWindowsDirectory32A( buffer
, len
+ 1 );
38 strcat( buffer
, "\\" );
39 strcat( buffer
, filename
);
40 file
= _lopen32( buffer
, OF_READ
);
41 HeapFree( SystemHeap
, 0, buffer
);
43 if (file
== HFILE_ERROR32
) return 0;
44 size
= _llseek32( file
, 0, 2 );
45 if (!(buffer
= HeapAlloc( SystemHeap
, 0, size
)))
50 _llseek32( file
, 0, 0 );
51 size
= _lread32( file
, buffer
, size
);
53 fileHeader
= (BITMAPFILEHEADER
*)buffer
;
54 bitmapInfo
= (BITMAPINFO
*)(buffer
+ sizeof(BITMAPFILEHEADER
));
56 /* Check header content */
57 if ((fileHeader
->bfType
!= 0x4d42) || (size
< fileHeader
->bfSize
))
59 HeapFree( SystemHeap
, 0, buffer
);
62 hbitmap
= CreateDIBitmap32( hdc
, &bitmapInfo
->bmiHeader
, CBM_INIT
,
63 buffer
+ fileHeader
->bfOffBits
,
64 bitmapInfo
, DIB_RGB_COLORS
);
65 HeapFree( SystemHeap
, 0, buffer
);
70 /***********************************************************************
71 * DESKTOP_DoEraseBkgnd
73 * Handle the WM_ERASEBKGND message.
75 static LRESULT
DESKTOP_DoEraseBkgnd( HWND32 hwnd
, HDC32 hdc
,
76 DESKTOPINFO
*infoPtr
)
79 WND
* Wnd
= WIN_FindWndPtr( hwnd
);
81 if (Wnd
->hrgnUpdate
> 1) DeleteObject32( Wnd
->hrgnUpdate
);
84 GetClientRect32( hwnd
, &rect
);
86 /* Paint desktop pattern (only if wall paper does not cover everything) */
88 if (!infoPtr
->hbitmapWallPaper
||
89 (!infoPtr
->fTileWallPaper
&& ((infoPtr
->bitmapSize
.cx
< rect
.right
) ||
90 (infoPtr
->bitmapSize
.cy
< rect
.bottom
))))
92 /* Set colors in case pattern is a monochrome bitmap */
93 SetBkColor32( hdc
, RGB(0,0,0) );
94 SetTextColor32( hdc
, GetSysColor32(COLOR_BACKGROUND
) );
95 FillRect32( hdc
, &rect
, infoPtr
->hbrushPattern
);
98 /* Paint wall paper */
100 if (infoPtr
->hbitmapWallPaper
)
104 if (infoPtr
->fTileWallPaper
)
106 for (y
= 0; y
< rect
.bottom
; y
+= infoPtr
->bitmapSize
.cy
)
107 for (x
= 0; x
< rect
.right
; x
+= infoPtr
->bitmapSize
.cx
)
108 GRAPH_DrawBitmap( hdc
, infoPtr
->hbitmapWallPaper
,
110 infoPtr
->bitmapSize
.cx
,
111 infoPtr
->bitmapSize
.cy
);
115 x
= (rect
.left
+ rect
.right
- infoPtr
->bitmapSize
.cx
) / 2;
116 y
= (rect
.top
+ rect
.bottom
- infoPtr
->bitmapSize
.cy
) / 2;
119 GRAPH_DrawBitmap( hdc
, infoPtr
->hbitmapWallPaper
, x
, y
, 0, 0,
120 infoPtr
->bitmapSize
.cx
, infoPtr
->bitmapSize
.cy
);
128 /***********************************************************************
131 * Window procedure for the desktop window.
133 LRESULT
DesktopWndProc( HWND32 hwnd
, UINT32 message
,
134 WPARAM32 wParam
, LPARAM lParam
)
136 WND
*wndPtr
= WIN_FindWndPtr( hwnd
);
137 DESKTOPINFO
*infoPtr
= (DESKTOPINFO
*)wndPtr
->wExtra
;
139 /* Most messages are ignored (we DON'T call DefWindowProc) */
143 /* Warning: this message is sent directly by */
144 /* WIN_CreateDesktopWindow() and does not contain a valid lParam */
146 infoPtr
->hbrushPattern
= 0;
147 infoPtr
->hbitmapWallPaper
= 0;
149 SetDeskWallPaper32( (LPSTR
)-1 );
153 if (rootWindow
== DefaultRootWindow(display
)) return 1;
154 return DESKTOP_DoEraseBkgnd( hwnd
, (HDC32
)wParam
, infoPtr
);
157 if ((wParam
& 0xfff0) != SC_CLOSE
) return 0;
158 ExitWindows16( 0, 0 );
161 return (LRESULT
)SetCursor16( LoadCursor16( 0, IDC_ARROW
) );
168 /***********************************************************************
169 * SetDeskPattern (USER.279)
171 BOOL16
SetDeskPattern(void)
174 GetProfileString32A( "desktop", "Pattern", "(None)", buffer
, 100 );
175 return DESKTOP_SetPattern( buffer
);
179 /***********************************************************************
180 * SetDeskWallPaper16 (USER.285)
182 BOOL16
SetDeskWallPaper16( LPCSTR filename
)
184 return SetDeskWallPaper32( filename
);
188 /***********************************************************************
189 * SetDeskWallPaper32 (USER32.475)
191 * FIXME: is there a unicode version?
193 BOOL32
SetDeskWallPaper32( LPCSTR filename
)
198 WND
*wndPtr
= WIN_GetDesktop();
199 DESKTOPINFO
*infoPtr
= (DESKTOPINFO
*)wndPtr
->wExtra
;
201 if (filename
== (LPSTR
)-1)
203 GetProfileString32A( "desktop", "WallPaper", "(None)", buffer
, 256 );
207 hbitmap
= DESKTOP_LoadBitmap( hdc
, filename
);
208 ReleaseDC32( 0, hdc
);
209 if (infoPtr
->hbitmapWallPaper
) DeleteObject32( infoPtr
->hbitmapWallPaper
);
210 infoPtr
->hbitmapWallPaper
= hbitmap
;
211 infoPtr
->fTileWallPaper
= GetProfileInt32A( "desktop", "TileWallPaper", 0 );
215 GetObject32A( hbitmap
, sizeof(bmp
), &bmp
);
216 infoPtr
->bitmapSize
.cx
= (bmp
.bmWidth
!= 0) ? bmp
.bmWidth
: 1;
217 infoPtr
->bitmapSize
.cy
= (bmp
.bmHeight
!= 0) ? bmp
.bmHeight
: 1;
223 /***********************************************************************
226 * Set the desktop pattern.
228 BOOL32
DESKTOP_SetPattern( LPCSTR pattern
)
230 WND
*wndPtr
= WIN_GetDesktop();
231 DESKTOPINFO
*infoPtr
= (DESKTOPINFO
*)wndPtr
->wExtra
;
234 if (infoPtr
->hbrushPattern
) DeleteObject32( infoPtr
->hbrushPattern
);
235 memset( pat
, 0, sizeof(pat
) );
236 if (pattern
&& sscanf( pattern
, " %d %d %d %d %d %d %d %d",
237 &pat
[0], &pat
[1], &pat
[2], &pat
[3],
238 &pat
[4], &pat
[5], &pat
[6], &pat
[7] ))
244 for (i
= 0; i
< 8; i
++) pattern
[i
] = pat
[i
] & 0xffff;
245 hbitmap
= CreateBitmap32( 8, 8, 1, 1, (LPSTR
)pattern
);
246 infoPtr
->hbrushPattern
= CreatePatternBrush32( hbitmap
);
247 DeleteObject32( hbitmap
);
249 else infoPtr
->hbrushPattern
= CreateSolidBrush32( GetSysColor32(COLOR_BACKGROUND
) );