2 * Desktop window class.
4 * Copyright 1994 Alexandre Julliard
17 #include "wine/winuser16.h"
22 HBITMAP hbitmapWallPaper
;
27 static LRESULT WINAPI
DesktopWndProc( HWND hwnd
, UINT message
, WPARAM wParam
, LPARAM lParam
);
30 /*********************************************************************
31 * desktop class descriptor
33 const struct builtin_class_descr DESKTOP_builtin_class
=
35 DESKTOP_CLASS_ATOM
, /* name */
36 CS_GLOBALCLASS
, /* style */
37 NULL
, /* procA (winproc is Unicode only) */
38 DesktopWndProc
, /* procW */
39 sizeof(DESKTOP
), /* extra */
40 IDC_ARROWA
, /* cursor */
41 COLOR_BACKGROUND
+1 /* brush */
45 /***********************************************************************
48 * Load a bitmap from a file. Used by SetDeskWallPaper().
50 static HBITMAP
DESKTOP_LoadBitmap( HDC hdc
, const char *filename
)
52 BITMAPFILEHEADER
*fileHeader
;
53 BITMAPINFO
*bitmapInfo
;
59 /* Read all the file into memory */
61 if ((file
= _lopen( filename
, OF_READ
)) == HFILE_ERROR
)
63 UINT len
= GetWindowsDirectoryA( NULL
, 0 );
64 if (!(buffer
= HeapAlloc( GetProcessHeap(), 0,
65 len
+ strlen(filename
) + 2 )))
67 GetWindowsDirectoryA( buffer
, len
+ 1 );
68 strcat( buffer
, "\\" );
69 strcat( buffer
, filename
);
70 file
= _lopen( buffer
, OF_READ
);
71 HeapFree( GetProcessHeap(), 0, buffer
);
73 if (file
== HFILE_ERROR
) return 0;
74 size
= _llseek( file
, 0, 2 );
75 if (!(buffer
= HeapAlloc( GetProcessHeap(), 0, size
)))
80 _llseek( file
, 0, 0 );
81 size
= _lread( file
, buffer
, size
);
83 fileHeader
= (BITMAPFILEHEADER
*)buffer
;
84 bitmapInfo
= (BITMAPINFO
*)(buffer
+ sizeof(BITMAPFILEHEADER
));
86 /* Check header content */
87 if ((fileHeader
->bfType
!= 0x4d42) || (size
< fileHeader
->bfSize
))
89 HeapFree( GetProcessHeap(), 0, buffer
);
92 hbitmap
= CreateDIBitmap( hdc
, &bitmapInfo
->bmiHeader
, CBM_INIT
,
93 buffer
+ fileHeader
->bfOffBits
,
94 bitmapInfo
, DIB_RGB_COLORS
);
95 HeapFree( GetProcessHeap(), 0, buffer
);
101 /***********************************************************************
104 static LRESULT WINAPI
DesktopWndProc( HWND hwnd
, UINT message
, WPARAM wParam
, LPARAM lParam
)
106 LRESULT retvalue
= 0;
107 WND
*wndPtr
= WIN_FindWndPtr( hwnd
);
108 DESKTOP
*desktopPtr
= (DESKTOP
*)wndPtr
->wExtra
;
110 if (message
== WM_NCCREATE
)
112 desktopPtr
->hbrushPattern
= 0;
113 desktopPtr
->hbitmapWallPaper
= 0;
115 SetDeskWallPaper( (LPSTR
)-1 );
118 /* all other messages are ignored */
120 WIN_ReleaseWndPtr(wndPtr
);
124 /***********************************************************************
125 * PaintDesktop (USER32.@)
128 BOOL WINAPI
PaintDesktop(HDC hdc
)
130 HWND hwnd
= GetDesktopWindow();
131 WND
*wndPtr
= WIN_FindWndPtr( hwnd
);
132 DESKTOP
*desktopPtr
= (DESKTOP
*)wndPtr
->wExtra
;
134 /* check for a queue; otherwise don't paint anything (non-desktop mode) */
135 if (wndPtr
->hmemTaskQ
)
139 GetClientRect( hwnd
, &rect
);
141 /* Paint desktop pattern (only if wall paper does not cover everything) */
143 if (!desktopPtr
->hbitmapWallPaper
||
144 (!desktopPtr
->fTileWallPaper
&& ((desktopPtr
->bitmapSize
.cx
< rect
.right
) ||
145 (desktopPtr
->bitmapSize
.cy
< rect
.bottom
))))
147 HBRUSH brush
= desktopPtr
->hbrushPattern
;
148 if (!brush
) brush
= GetClassLongA( hwnd
, GCL_HBRBACKGROUND
);
149 /* Set colors in case pattern is a monochrome bitmap */
150 SetBkColor( hdc
, RGB(0,0,0) );
151 SetTextColor( hdc
, GetSysColor(COLOR_BACKGROUND
) );
152 FillRect( hdc
, &rect
, brush
);
155 /* Paint wall paper */
157 if (desktopPtr
->hbitmapWallPaper
)
160 HDC hMemDC
= CreateCompatibleDC( hdc
);
162 SelectObject( hMemDC
, desktopPtr
->hbitmapWallPaper
);
164 if (desktopPtr
->fTileWallPaper
)
166 for (y
= 0; y
< rect
.bottom
; y
+= desktopPtr
->bitmapSize
.cy
)
167 for (x
= 0; x
< rect
.right
; x
+= desktopPtr
->bitmapSize
.cx
)
168 BitBlt( hdc
, x
, y
, desktopPtr
->bitmapSize
.cx
,
169 desktopPtr
->bitmapSize
.cy
, hMemDC
, 0, 0, SRCCOPY
);
173 x
= (rect
.left
+ rect
.right
- desktopPtr
->bitmapSize
.cx
) / 2;
174 y
= (rect
.top
+ rect
.bottom
- desktopPtr
->bitmapSize
.cy
) / 2;
177 BitBlt( hdc
, x
, y
, desktopPtr
->bitmapSize
.cx
,
178 desktopPtr
->bitmapSize
.cy
, hMemDC
, 0, 0, SRCCOPY
);
183 WIN_ReleaseWndPtr(wndPtr
);
187 /***********************************************************************
188 * OldSetDeskPattern (USER.279)
190 BOOL16 WINAPI
SetDeskPattern(void)
193 GetProfileStringA( "desktop", "Pattern", "(None)", buffer
, 100 );
194 return DESKTOP_SetPattern( buffer
);
198 /***********************************************************************
199 * SetDeskWallPaper (USER.285)
201 BOOL16 WINAPI
SetDeskWallPaper16( LPCSTR filename
)
203 return SetDeskWallPaper( filename
);
207 /***********************************************************************
208 * SetDeskWallPaper (USER32.@)
210 * FIXME: is there a unicode version?
212 BOOL WINAPI
SetDeskWallPaper( LPCSTR filename
)
217 WND
*wndPtr
= WIN_GetDesktop();
218 DESKTOP
*desktopPtr
= (DESKTOP
*)wndPtr
->wExtra
;
220 if (filename
== (LPSTR
)-1)
222 GetProfileStringA( "desktop", "WallPaper", "(None)", buffer
, 256 );
226 hbitmap
= DESKTOP_LoadBitmap( hdc
, filename
);
228 if (desktopPtr
->hbitmapWallPaper
) DeleteObject( desktopPtr
->hbitmapWallPaper
);
229 desktopPtr
->hbitmapWallPaper
= hbitmap
;
230 desktopPtr
->fTileWallPaper
= GetProfileIntA( "desktop", "TileWallPaper", 0 );
234 GetObjectA( hbitmap
, sizeof(bmp
), &bmp
);
235 desktopPtr
->bitmapSize
.cx
= (bmp
.bmWidth
!= 0) ? bmp
.bmWidth
: 1;
236 desktopPtr
->bitmapSize
.cy
= (bmp
.bmHeight
!= 0) ? bmp
.bmHeight
: 1;
238 WIN_ReleaseDesktop();
243 /***********************************************************************
246 * Set the desktop pattern.
248 BOOL
DESKTOP_SetPattern( LPCSTR pattern
)
250 WND
*wndPtr
= WIN_GetDesktop();
251 DESKTOP
*desktopPtr
= (DESKTOP
*)wndPtr
->wExtra
;
254 if (desktopPtr
->hbrushPattern
) DeleteObject( desktopPtr
->hbrushPattern
);
255 memset( pat
, 0, sizeof(pat
) );
256 if (pattern
&& sscanf( pattern
, " %d %d %d %d %d %d %d %d",
257 &pat
[0], &pat
[1], &pat
[2], &pat
[3],
258 &pat
[4], &pat
[5], &pat
[6], &pat
[7] ))
264 for (i
= 0; i
< 8; i
++) pattern
[i
] = pat
[i
] & 0xffff;
265 hbitmap
= CreateBitmap( 8, 8, 1, 1, (LPSTR
)pattern
);
266 desktopPtr
->hbrushPattern
= CreatePatternBrush( hbitmap
);
267 DeleteObject( hbitmap
);
269 else desktopPtr
->hbrushPattern
= 0;
270 WIN_ReleaseDesktop();