git.oblomov.eu Git - wine/blob - windows/painting.c

   1 /*
   2  * Window painting functions
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  */
   6
   7 static char Copyright[] = "Copyright  Alexandre Julliard, 1993";
   8
   9 #include <math.h>
  10 #include <X11/Xlib.h>
  11
  12 #include "win.h"
  13
  14   /* Last CTLCOLOR id */
  15 #define CTLCOLOR_MAX   CTLCOLOR_STATIC
  16
  17
  18 /***********************************************************************
  19  *           BeginPaint    (USER.39)
  20  */
  21 HDC BeginPaint( HWND hwnd, LPPAINTSTRUCT lps )
  22 {
  23     WND * wndPtr = WIN_FindWndPtr( hwnd );
  24     if (!wndPtr) return 0;
  25
  26     lps->hdc = GetDC( hwnd );
  27     if (!lps->hdc) return 0;
  28
  29     SelectVisRgn( lps->hdc, wndPtr->hrgnUpdate );
  30     if (wndPtr->hrgnUpdate)
  31     {
  32         GetRgnBox( wndPtr->hrgnUpdate, &lps->rcPaint );
  33         DeleteObject( wndPtr->hrgnUpdate );
  34         wndPtr->hrgnUpdate = 0;
  35     }
  36     else
  37     {
  38         lps->rcPaint.left   = 0;
  39         lps->rcPaint.top    = 0;
  40         lps->rcPaint.right  = wndPtr->rectClient.right-wndPtr->rectClient.left;
  41         lps->rcPaint.bottom = wndPtr->rectClient.bottom-wndPtr->rectClient.top;
  42     }
  43
  44     if (!(wndPtr->flags & WIN_ERASE_UPDATERGN)) lps->fErase = TRUE;
  45     else lps->fErase = !SendMessage( hwnd, WM_ERASEBKGND, lps->hdc, 0 );
  46
  47     GlobalUnlock( hwnd );
  48     return lps->hdc;
  49 }
  50
  51
  52 /***********************************************************************
  53  *           EndPaint    (USER.40)
  54  */
  55 void EndPaint( HWND hwnd, LPPAINTSTRUCT lps )
  56 {
  57     ReleaseDC( hwnd, lps->hdc );
  58 }
  59
  60
  61 /***********************************************************************
  62  *           FillWindow    (USER.324)
  63  */
  64 void FillWindow( HWND hwndParent, HWND hwnd, HDC hdc, HBRUSH hbrush )
  65 {
  66     RECT rect;
  67     WND * wndPtr = WIN_FindWndPtr( hwnd );
  68     if (!wndPtr) return;
  69     rect.left   = 0;
  70     rect.top    = 0;
  71     rect.right  = wndPtr->rectClient.right - wndPtr->rectClient.left;
  72     rect.bottom = wndPtr->rectClient.bottom - wndPtr->rectClient.top;
  73     PaintRect( hwndParent, hwnd, hdc, hbrush, &rect );
  74     GlobalUnlock( hwnd );
  75 }
  76
  77
  78 /***********************************************************************
  79  *           PaintRect    (USER.325)
  80  */
  81 void PaintRect(HWND hwndParent, HWND hwnd, HDC hdc, HBRUSH hbrush, LPRECT rect)
  82 {
  83       /* Send WM_CTLCOLOR message if needed */
  84
  85     if (hbrush <= CTLCOLOR_MAX)
  86     {
  87         if (!hwndParent) return;
  88         hbrush = (HBRUSH)SendMessage( hwndParent, WM_CTLCOLOR,
  89                                       hdc, hwnd | (hbrush << 16) );
  90     }
  91     if (hbrush) FillRect( hdc, rect, hbrush );
  92 }