268 lines
7.5 KiB
C
268 lines
7.5 KiB
C
/*
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* Desktop window class.
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*
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* Copyright 1994 Alexandre Julliard
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*/
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "win.h"
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#include "desktop.h"
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#include "heap.h"
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#include "wine/winuser16.h"
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/***********************************************************************
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* DESKTOP_LoadBitmap
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*
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* Load a bitmap from a file. Used by SetDeskWallPaper().
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*/
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static HBITMAP32 DESKTOP_LoadBitmap( HDC32 hdc, const char *filename )
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{
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BITMAPFILEHEADER *fileHeader;
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BITMAPINFO *bitmapInfo;
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HBITMAP32 hbitmap;
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HFILE32 file;
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LPSTR buffer;
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LONG size;
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/* Read all the file into memory */
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if ((file = _lopen32( filename, OF_READ )) == HFILE_ERROR32)
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{
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UINT32 len = GetWindowsDirectory32A( NULL, 0 );
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if (!(buffer = HeapAlloc( GetProcessHeap(), 0,
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len + strlen(filename) + 2 )))
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return 0;
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GetWindowsDirectory32A( buffer, len + 1 );
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strcat( buffer, "\\" );
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strcat( buffer, filename );
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file = _lopen32( buffer, OF_READ );
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HeapFree( GetProcessHeap(), 0, buffer );
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}
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if (file == HFILE_ERROR32) return 0;
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size = _llseek32( file, 0, 2 );
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if (!(buffer = HeapAlloc( GetProcessHeap(), 0, size )))
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{
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_lclose32( file );
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return 0;
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}
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_llseek32( file, 0, 0 );
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size = _lread32( file, buffer, size );
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_lclose32( file );
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fileHeader = (BITMAPFILEHEADER *)buffer;
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bitmapInfo = (BITMAPINFO *)(buffer + sizeof(BITMAPFILEHEADER));
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/* Check header content */
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if ((fileHeader->bfType != 0x4d42) || (size < fileHeader->bfSize))
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{
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HeapFree( GetProcessHeap(), 0, buffer );
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return 0;
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}
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hbitmap = CreateDIBitmap32( hdc, &bitmapInfo->bmiHeader, CBM_INIT,
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buffer + fileHeader->bfOffBits,
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bitmapInfo, DIB_RGB_COLORS );
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HeapFree( GetProcessHeap(), 0, buffer );
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return hbitmap;
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}
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/***********************************************************************
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* DESKTOP_DoEraseBkgnd
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*
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* Handle the WM_ERASEBKGND message.
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*/
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static LRESULT DESKTOP_DoEraseBkgnd( HWND32 hwnd, HDC32 hdc,
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DESKTOPINFO *infoPtr )
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{
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RECT32 rect;
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WND* Wnd = WIN_FindWndPtr( hwnd );
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if (Wnd->hrgnUpdate > 1) DeleteObject32( Wnd->hrgnUpdate );
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Wnd->hrgnUpdate = 0;
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GetClientRect32( hwnd, &rect );
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/* Paint desktop pattern (only if wall paper does not cover everything) */
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if (!infoPtr->hbitmapWallPaper ||
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(!infoPtr->fTileWallPaper && ((infoPtr->bitmapSize.cx < rect.right) ||
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(infoPtr->bitmapSize.cy < rect.bottom))))
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{
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/* Set colors in case pattern is a monochrome bitmap */
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SetBkColor32( hdc, RGB(0,0,0) );
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SetTextColor32( hdc, GetSysColor32(COLOR_BACKGROUND) );
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FillRect32( hdc, &rect, infoPtr->hbrushPattern );
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}
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/* Paint wall paper */
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if (infoPtr->hbitmapWallPaper)
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{
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INT32 x, y;
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HDC32 hMemDC = CreateCompatibleDC32( hdc );
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SelectObject32( hMemDC, infoPtr->hbitmapWallPaper );
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if (infoPtr->fTileWallPaper)
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{
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for (y = 0; y < rect.bottom; y += infoPtr->bitmapSize.cy)
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for (x = 0; x < rect.right; x += infoPtr->bitmapSize.cx)
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BitBlt32( hdc, x, y, infoPtr->bitmapSize.cx,
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infoPtr->bitmapSize.cy, hMemDC, 0, 0, SRCCOPY );
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}
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else
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{
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x = (rect.left + rect.right - infoPtr->bitmapSize.cx) / 2;
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y = (rect.top + rect.bottom - infoPtr->bitmapSize.cy) / 2;
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if (x < 0) x = 0;
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if (y < 0) y = 0;
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BitBlt32( hdc, x, y, infoPtr->bitmapSize.cx,
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infoPtr->bitmapSize.cy, hMemDC, 0, 0, SRCCOPY );
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}
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DeleteDC32( hMemDC );
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}
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return 1;
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}
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/***********************************************************************
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* DesktopWndProc
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*
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* Window procedure for the desktop window.
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*/
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LRESULT WINAPI DesktopWndProc( HWND32 hwnd, UINT32 message,
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WPARAM32 wParam, LPARAM lParam )
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{
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WND *wndPtr = WIN_FindWndPtr( hwnd );
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DESKTOPINFO *infoPtr = (DESKTOPINFO *)wndPtr->wExtra;
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/* Most messages are ignored (we DON'T call DefWindowProc) */
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switch(message)
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{
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/* Warning: this message is sent directly by */
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/* WIN_CreateDesktopWindow() and does not contain a valid lParam */
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case WM_NCCREATE:
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infoPtr->hbrushPattern = 0;
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infoPtr->hbitmapWallPaper = 0;
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SetDeskPattern();
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SetDeskWallPaper32( (LPSTR)-1 );
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return 1;
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case WM_ERASEBKGND:
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if (rootWindow == DefaultRootWindow(display)) return 1;
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return DESKTOP_DoEraseBkgnd( hwnd, (HDC32)wParam, infoPtr );
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case WM_SYSCOMMAND:
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if ((wParam & 0xfff0) != SC_CLOSE) return 0;
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ExitWindows16( 0, 0 );
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case WM_SETCURSOR:
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return (LRESULT)SetCursor16( LoadCursor16( 0, IDC_ARROW16 ) );
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}
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return 0;
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}
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/***********************************************************************
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* PaintDesktop (USER32.415)
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*
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*/
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BOOL32 WINAPI PaintDesktop(HDC32 hdc)
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{
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HWND32 hwnd = GetDesktopWindow32();
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WND *wndPtr = WIN_FindWndPtr( hwnd );
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DESKTOPINFO *infoPtr = (DESKTOPINFO *)wndPtr->wExtra;
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return DESKTOP_DoEraseBkgnd( hwnd, hdc, infoPtr );
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}
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/***********************************************************************
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* SetDeskPattern (USER.279)
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*/
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BOOL16 WINAPI SetDeskPattern(void)
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{
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char buffer[100];
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GetProfileString32A( "desktop", "Pattern", "(None)", buffer, 100 );
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return DESKTOP_SetPattern( buffer );
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}
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/***********************************************************************
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* SetDeskWallPaper16 (USER.285)
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*/
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BOOL16 WINAPI SetDeskWallPaper16( LPCSTR filename )
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{
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return SetDeskWallPaper32( filename );
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}
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/***********************************************************************
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* SetDeskWallPaper32 (USER32.475)
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*
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* FIXME: is there a unicode version?
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*/
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BOOL32 WINAPI SetDeskWallPaper32( LPCSTR filename )
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{
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HBITMAP32 hbitmap;
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HDC32 hdc;
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char buffer[256];
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WND *wndPtr = WIN_GetDesktop();
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DESKTOPINFO *infoPtr = (DESKTOPINFO *)wndPtr->wExtra;
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if (filename == (LPSTR)-1)
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{
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GetProfileString32A( "desktop", "WallPaper", "(None)", buffer, 256 );
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filename = buffer;
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}
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hdc = GetDC32( 0 );
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hbitmap = DESKTOP_LoadBitmap( hdc, filename );
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ReleaseDC32( 0, hdc );
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if (infoPtr->hbitmapWallPaper) DeleteObject32( infoPtr->hbitmapWallPaper );
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infoPtr->hbitmapWallPaper = hbitmap;
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infoPtr->fTileWallPaper = GetProfileInt32A( "desktop", "TileWallPaper", 0 );
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if (hbitmap)
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{
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BITMAP32 bmp;
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GetObject32A( hbitmap, sizeof(bmp), &bmp );
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infoPtr->bitmapSize.cx = (bmp.bmWidth != 0) ? bmp.bmWidth : 1;
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infoPtr->bitmapSize.cy = (bmp.bmHeight != 0) ? bmp.bmHeight : 1;
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}
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return TRUE;
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}
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/***********************************************************************
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* DESKTOP_SetPattern
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*
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* Set the desktop pattern.
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*/
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BOOL32 DESKTOP_SetPattern( LPCSTR pattern )
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{
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WND *wndPtr = WIN_GetDesktop();
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DESKTOPINFO *infoPtr = (DESKTOPINFO *)wndPtr->wExtra;
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int pat[8];
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if (infoPtr->hbrushPattern) DeleteObject32( infoPtr->hbrushPattern );
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memset( pat, 0, sizeof(pat) );
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if (pattern && sscanf( pattern, " %d %d %d %d %d %d %d %d",
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&pat[0], &pat[1], &pat[2], &pat[3],
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&pat[4], &pat[5], &pat[6], &pat[7] ))
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{
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WORD pattern[8];
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HBITMAP32 hbitmap;
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int i;
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for (i = 0; i < 8; i++) pattern[i] = pat[i] & 0xffff;
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hbitmap = CreateBitmap32( 8, 8, 1, 1, (LPSTR)pattern );
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infoPtr->hbrushPattern = CreatePatternBrush32( hbitmap );
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DeleteObject32( hbitmap );
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}
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else infoPtr->hbrushPattern = CreateSolidBrush32( GetSysColor32(COLOR_BACKGROUND) );
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return TRUE;
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}
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