Sweden-Number/controls/desktop.c

268 lines
7.5 KiB
C

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