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https://github.com/reactos/wine.git
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323 lines
8.9 KiB
C
323 lines
8.9 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 "windef.h"
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#include "wingdi.h"
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#include "heap.h"
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#include "user.h"
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#include "win.h"
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#include "controls.h"
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#include "wine/winuser16.h"
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typedef struct
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{
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HBRUSH hbrushPattern;
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HBITMAP hbitmapWallPaper;
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SIZE bitmapSize;
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BOOL fTileWallPaper;
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} DESKTOP;
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static LRESULT WINAPI DesktopWndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam );
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/*********************************************************************
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* desktop class descriptor
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*/
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const struct builtin_class_descr DESKTOP_builtin_class =
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{
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DESKTOP_CLASS_ATOM, /* name */
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CS_GLOBALCLASS, /* style */
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NULL, /* procA (winproc is Unicode only) */
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DesktopWndProc, /* procW */
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sizeof(DESKTOP), /* extra */
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IDC_ARROWA, /* cursor */
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COLOR_BACKGROUND+1 /* brush */
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};
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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 HBITMAP DESKTOP_LoadBitmap( HDC hdc, const char *filename )
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{
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BITMAPFILEHEADER *fileHeader;
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BITMAPINFO *bitmapInfo;
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HBITMAP hbitmap;
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HFILE 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 = _lopen( filename, OF_READ )) == HFILE_ERROR)
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{
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UINT len = GetWindowsDirectoryA( 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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GetWindowsDirectoryA( buffer, len + 1 );
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strcat( buffer, "\\" );
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strcat( buffer, filename );
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file = _lopen( buffer, OF_READ );
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HeapFree( GetProcessHeap(), 0, buffer );
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}
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if (file == HFILE_ERROR) return 0;
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size = _llseek( file, 0, 2 );
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if (!(buffer = HeapAlloc( GetProcessHeap(), 0, size )))
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{
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_lclose( file );
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return 0;
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}
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_llseek( file, 0, 0 );
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size = _lread( file, buffer, size );
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_lclose( 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 = CreateDIBitmap( 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( HWND hwnd, HDC hdc,
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DESKTOP *desktopPtr )
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{
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RECT rect;
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WND* Wnd = WIN_FindWndPtr( hwnd );
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if (Wnd->hrgnUpdate > 1) DeleteObject( Wnd->hrgnUpdate );
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Wnd->hrgnUpdate = 0;
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WIN_ReleaseWndPtr(Wnd);
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GetClientRect( hwnd, &rect );
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/* Paint desktop pattern (only if wall paper does not cover everything) */
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if (!desktopPtr->hbitmapWallPaper ||
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(!desktopPtr->fTileWallPaper && ((desktopPtr->bitmapSize.cx < rect.right) ||
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(desktopPtr->bitmapSize.cy < rect.bottom))))
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{
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HBRUSH brush = desktopPtr->hbrushPattern;
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if (!brush) brush = GetClassLongA( hwnd, GCL_HBRBACKGROUND );
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/* Set colors in case pattern is a monochrome bitmap */
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SetBkColor( hdc, RGB(0,0,0) );
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SetTextColor( hdc, GetSysColor(COLOR_BACKGROUND) );
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FillRect( hdc, &rect, brush );
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}
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/* Paint wall paper */
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if (desktopPtr->hbitmapWallPaper)
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{
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INT x, y;
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HDC hMemDC = CreateCompatibleDC( hdc );
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SelectObject( hMemDC, desktopPtr->hbitmapWallPaper );
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if (desktopPtr->fTileWallPaper)
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{
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for (y = 0; y < rect.bottom; y += desktopPtr->bitmapSize.cy)
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for (x = 0; x < rect.right; x += desktopPtr->bitmapSize.cx)
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BitBlt( hdc, x, y, desktopPtr->bitmapSize.cx,
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desktopPtr->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 - desktopPtr->bitmapSize.cx) / 2;
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y = (rect.top + rect.bottom - desktopPtr->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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BitBlt( hdc, x, y, desktopPtr->bitmapSize.cx,
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desktopPtr->bitmapSize.cy, hMemDC, 0, 0, SRCCOPY );
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}
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DeleteDC( hMemDC );
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}
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return 1;
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}
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/***********************************************************************
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* DesktopWndProc_locked
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*
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* Window procedure for the desktop window.
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*/
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static inline LRESULT WINAPI DesktopWndProc_locked( WND *wndPtr, UINT message,
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WPARAM wParam, LPARAM lParam )
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{
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DESKTOP *desktopPtr = (DESKTOP *)wndPtr->wExtra;
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HWND hwnd = wndPtr->hwndSelf;
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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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desktopPtr->hbrushPattern = 0;
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desktopPtr->hbitmapWallPaper = 0;
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SetDeskPattern();
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SetDeskWallPaper( (LPSTR)-1 );
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return 1;
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case WM_ERASEBKGND:
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if(!USER_Driver.pIsSingleWindow())
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return 1;
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return DESKTOP_DoEraseBkgnd( hwnd, (HDC)wParam, desktopPtr );
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case WM_SYSCOMMAND:
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if ((wParam & 0xfff0) != SC_CLOSE)
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return 0;
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ExitWindows16( 0, 0 );
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case WM_SETCURSOR:
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return (LRESULT)SetCursor( LoadCursorA( 0, IDC_ARROWA ) );
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}
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return 0;
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}
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/***********************************************************************
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* DesktopWndProc
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*
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* This is just a wrapper for the DesktopWndProc which does windows
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* locking and unlocking.
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*/
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static LRESULT WINAPI DesktopWndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
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{
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WND *wndPtr = WIN_FindWndPtr( hwnd );
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LRESULT retvalue = DesktopWndProc_locked(wndPtr,message,wParam,lParam);
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WIN_ReleaseWndPtr(wndPtr);
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return retvalue;
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}
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/***********************************************************************
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* PaintDesktop (USER32.@)
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*
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*/
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BOOL WINAPI PaintDesktop(HDC hdc)
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{
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BOOL retvalue;
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HWND hwnd = GetDesktopWindow();
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WND *wndPtr = WIN_FindWndPtr( hwnd );
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DESKTOP *desktopPtr = (DESKTOP *)wndPtr->wExtra;
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retvalue = DESKTOP_DoEraseBkgnd( hwnd, hdc, desktopPtr );
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WIN_ReleaseWndPtr(wndPtr);
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return retvalue;
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}
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/***********************************************************************
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* OldSetDeskPattern (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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GetProfileStringA( "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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* SetDeskWallPaper (USER.285)
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*/
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BOOL16 WINAPI SetDeskWallPaper16( LPCSTR filename )
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{
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return SetDeskWallPaper( filename );
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}
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/***********************************************************************
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* SetDeskWallPaper (USER32.@)
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*
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* FIXME: is there a unicode version?
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*/
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BOOL WINAPI SetDeskWallPaper( LPCSTR filename )
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{
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HBITMAP hbitmap;
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HDC hdc;
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char buffer[256];
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WND *wndPtr = WIN_GetDesktop();
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DESKTOP *desktopPtr = (DESKTOP *)wndPtr->wExtra;
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if (filename == (LPSTR)-1)
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{
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GetProfileStringA( "desktop", "WallPaper", "(None)", buffer, 256 );
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filename = buffer;
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}
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hdc = GetDC( 0 );
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hbitmap = DESKTOP_LoadBitmap( hdc, filename );
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ReleaseDC( 0, hdc );
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if (desktopPtr->hbitmapWallPaper) DeleteObject( desktopPtr->hbitmapWallPaper );
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desktopPtr->hbitmapWallPaper = hbitmap;
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desktopPtr->fTileWallPaper = GetProfileIntA( "desktop", "TileWallPaper", 0 );
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if (hbitmap)
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{
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BITMAP bmp;
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GetObjectA( hbitmap, sizeof(bmp), &bmp );
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desktopPtr->bitmapSize.cx = (bmp.bmWidth != 0) ? bmp.bmWidth : 1;
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desktopPtr->bitmapSize.cy = (bmp.bmHeight != 0) ? bmp.bmHeight : 1;
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}
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WIN_ReleaseDesktop();
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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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BOOL DESKTOP_SetPattern( LPCSTR pattern )
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{
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WND *wndPtr = WIN_GetDesktop();
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DESKTOP *desktopPtr = (DESKTOP *)wndPtr->wExtra;
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int pat[8];
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if (desktopPtr->hbrushPattern) DeleteObject( desktopPtr->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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HBITMAP 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 = CreateBitmap( 8, 8, 1, 1, (LPSTR)pattern );
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desktopPtr->hbrushPattern = CreatePatternBrush( hbitmap );
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DeleteObject( hbitmap );
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}
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else desktopPtr->hbrushPattern = 0;
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WIN_ReleaseDesktop();
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return TRUE;
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}
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