dlls/comctl32/theme_dialog.c

   1 /*
   2  * Theming - Dialogs
   3  *
   4  * Copyright (c) 2005 by Frank Richter
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  *
  20  */
  21
  22 #include <stdarg.h>
  23 #include <string.h>
  24 #include <stdlib.h>
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "wingdi.h"
  29 #include "winuser.h"
  30 #include "uxtheme.h"
  31 #include "tmschema.h"
  32 #include "comctl32.h"
  33 #include "wine/debug.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(themingdialog);
  36
  37 /**********************************************************************
  38  * The dialog subclass window proc.
  39  */
  40 LRESULT CALLBACK THEMING_DialogSubclassProc (HWND hWnd, UINT msg,
  41                                              WPARAM wParam, LPARAM lParam,
  42                                              ULONG_PTR dwRefData)
  43 {
  44     HTHEME theme = GetWindowTheme ( hWnd );
  45     static const WCHAR themeClass[] = { 'W','i','n','d','o','w',0 };
  46     BOOL themingActive = IsThemeDialogTextureEnabled (hWnd);
  47     BOOL doTheming = themingActive && (theme != NULL);
  48     LRESULT result;
  49
  50     switch (msg)
  51     {
  52     case WM_CREATE:
  53         result = THEMING_CallOriginalClass (hWnd, msg, wParam, lParam);
  54         theme = OpenThemeData( hWnd, themeClass );
  55         return result;
  56
  57     case WM_DESTROY:
  58         CloseThemeData ( theme );
  59         return THEMING_CallOriginalClass (hWnd, msg, wParam, lParam);
  60
  61     case WM_THEMECHANGED:
  62         CloseThemeData ( theme );
  63         OpenThemeData( hWnd, themeClass );
  64         InvalidateRect( hWnd, NULL, TRUE );
  65         return 0;
  66
  67     case WM_SYSCOLORCHANGE:
  68         if (!doTheming) return THEMING_CallOriginalClass (hWnd, msg, wParam, lParam);
  69         /* Do nothing. When themed, a WM_THEMECHANGED will be received, too,
  70          * which will do the repaint. */
  71         break;
  72
  73     case WM_ERASEBKGND:
  74         if (!doTheming) return THEMING_CallOriginalClass (hWnd, msg, wParam, lParam);
  75         {
  76             RECT rc;
  77             WNDPROC dlgp = (WNDPROC)GetWindowLongPtrW (hWnd, DWLP_DLGPROC);
  78             if (!CallWindowProcW(dlgp, hWnd, msg, wParam, lParam))
  79             {
  80                 /* Draw background*/
  81                 GetClientRect (hWnd, &rc);
  82                 if (IsThemePartDefined (theme, WP_DIALOG, 0))
  83                     /* Although there is a theme for the WINDOW class/DIALOG part,
  84                      * but I[res] haven't seen Windows using it yet... Even when
  85                      * dialog theming is activated, the good ol' BTNFACE
  86                      * background seems to be used. */
  87 #if 0
  88                     DrawThemeBackground (theme, (HDC)wParam, WP_DIALOG, 0, &rc,
  89                         NULL);
  90 #endif
  91                     return THEMING_CallOriginalClass (hWnd, msg, wParam, lParam);
  92                 else
  93                 /* We might have gotten a TAB theme class, so check if we can
  94                  * draw as a tab page. */
  95                 if (IsThemePartDefined (theme, TABP_BODY, 0))
  96                     DrawThemeBackground (theme, (HDC)wParam, TABP_BODY, 0, &rc,
  97                         NULL);
  98                 else
  99                     return THEMING_CallOriginalClass (hWnd, msg, wParam, lParam);
 100             }
 101             return 1;
 102         }
 103
 104     case WM_CTLCOLORSTATIC:
 105         if (!doTheming) return THEMING_CallOriginalClass (hWnd, msg, wParam, lParam);
 106         {
 107             WNDPROC dlgp = (WNDPROC)GetWindowLongPtrW (hWnd, DWLP_DLGPROC);
 108             LRESULT result = CallWindowProcW(dlgp, hWnd, msg, wParam, lParam);
 109             if (!result)
 110             {
 111                 /* Override defaults with more suitable values when themed */
 112                 HDC controlDC = (HDC)wParam;
 113                 HWND controlWnd = (HWND)lParam;
 114                 WCHAR controlClass[32];
 115                 RECT rc;
 116
 117                 GetClassNameW (controlWnd, controlClass,
 118                     sizeof(controlClass) / sizeof(controlClass[0]));
 119                 if (lstrcmpiW (controlClass, WC_STATICW) == 0)
 120                 {
 121                     /* Static control - draw parent background and set text to
 122                      * transparent, so it looks right on tab pages. */
 123                     GetClientRect (controlWnd, &rc);
 124                     DrawThemeParentBackground (controlWnd, controlDC, &rc);
 125                     SetBkMode (controlDC, TRANSPARENT);
 126
 127                     /* Return NULL brush since we painted the BG already */
 128                     return (LRESULT)GetStockObject (NULL_BRUSH);
 129                 }
 130                 else
 131                     return THEMING_CallOriginalClass (hWnd, msg, wParam, lParam);
 132
 133             }
 134             return result;
 135         }
 136
 137     default:
 138         /* Call old proc */
 139         return THEMING_CallOriginalClass (hWnd, msg, wParam, lParam);
 140     }
 141     return 0;
 142 }