dlls/comctl32/theme_edit.c

   1 /*
   2  * Theming - Edit control
   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 /* Draw themed border */
  36 static void nc_paint (HTHEME theme, HWND hwnd, HRGN region)
  37 {
  38     HRGN cliprgn = region;
  39     DWORD exStyle = GetWindowLongW (hwnd, GWL_EXSTYLE);
  40     if (exStyle & WS_EX_CLIENTEDGE)
  41     {
  42         HDC dc;
  43         RECT r;
  44         int cxEdge = GetSystemMetrics (SM_CXEDGE),
  45             cyEdge = GetSystemMetrics (SM_CYEDGE);
  46         int part = EP_EDITTEXT;
  47         int state = ETS_NORMAL;
  48         DWORD dwStyle = GetWindowLongW (hwnd, GWL_STYLE);
  49
  50         if (!IsWindowEnabled (hwnd))
  51             state = ETS_DISABLED;
  52         else if (dwStyle & ES_READONLY)
  53             state = ETS_READONLY;
  54         else if (GetFocus() == hwnd)
  55             state = ETS_FOCUSED;
  56
  57         GetWindowRect(hwnd, &r);
  58
  59         /* New clipping region passed to default proc to exclude border */
  60         cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
  61             r.right - cxEdge, r.bottom - cyEdge);
  62         if (region != (HRGN)1)
  63             CombineRgn (cliprgn, cliprgn, region, RGN_AND);
  64         OffsetRect(&r, -r.left, -r.top);
  65
  66         dc = GetDCEx(hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
  67         OffsetRect(&r, -r.left, -r.top);
  68
  69         if (IsThemeBackgroundPartiallyTransparent (theme, part, state))
  70             DrawThemeParentBackground(hwnd, dc, &r);
  71         DrawThemeBackground (theme, dc, part, state, &r, 0);
  72         ReleaseDC(hwnd, dc);
  73     }
  74
  75     /* Call default proc to get the scrollbars etc. also painted */
  76     DefWindowProcW (hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
  77 }
  78
  79 /**********************************************************************
  80  * The edit control subclass window proc.
  81  */
  82 LRESULT CALLBACK THEMING_EditSubclassProc (HWND hwnd, UINT msg,
  83                                            WPARAM wParam, LPARAM lParam,
  84                                            ULONG_PTR dwRefData)
  85 {
  86     const WCHAR* themeClass = WC_EDITW;
  87     HTHEME theme;
  88     LRESULT result;
  89
  90     switch (msg)
  91     {
  92     case WM_CREATE:
  93         result = THEMING_CallOriginalClass  (hwnd, msg, wParam, lParam);
  94         OpenThemeData( hwnd, themeClass );
  95         return result;
  96
  97     case WM_DESTROY:
  98         theme = GetWindowTheme( hwnd );
  99         CloseThemeData ( theme );
 100         return THEMING_CallOriginalClass (hwnd, msg, wParam, lParam);
 101
 102     case WM_THEMECHANGED:
 103         theme = GetWindowTheme( hwnd );
 104         CloseThemeData ( theme );
 105         OpenThemeData( hwnd, themeClass );
 106         break;
 107
 108     case WM_SYSCOLORCHANGE:
 109         theme = GetWindowTheme( hwnd );
 110         if (!theme) return THEMING_CallOriginalClass (hwnd, msg, wParam, lParam);
 111         /* Do nothing. When themed, a WM_THEMECHANGED will be received, too,
 112          * which will do the repaint. */
 113         break;
 114
 115     case WM_NCPAINT:
 116         theme = GetWindowTheme( hwnd );
 117         if (!theme) return THEMING_CallOriginalClass (hwnd, msg, wParam, lParam);
 118         nc_paint (theme, hwnd, (HRGN)wParam);
 119         break;
 120
 121     case WM_ENABLE:
 122         theme = GetWindowTheme( hwnd );
 123         if (theme) RedrawWindow (hwnd, NULL, NULL,
 124             RDW_FRAME | RDW_INVALIDATE | RDW_UPDATENOW);
 125         return THEMING_CallOriginalClass (hwnd, msg, wParam, lParam);
 126
 127     default:
 128         /* Call old proc */
 129         return THEMING_CallOriginalClass (hwnd, msg, wParam, lParam);
 130     }
 131     return 0;
 132 }