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 WINE_DEFAULT_DEBUG_CHANNEL(themingedit);
  36
  37 /* Draw themed border */
  38 static void nc_paint (HTHEME theme, HWND hwnd, HRGN region)
  39 {
  40     HRGN cliprgn = region;
  41     DWORD exStyle = GetWindowLongW (hwnd, GWL_EXSTYLE);
  42     if (exStyle & WS_EX_CLIENTEDGE)
  43     {
  44         HDC dc;
  45         RECT r;
  46         int cxEdge = GetSystemMetrics (SM_CXEDGE),
  47             cyEdge = GetSystemMetrics (SM_CYEDGE);
  48         int part = EP_EDITTEXT;
  49         int state = ETS_NORMAL;
  50         DWORD dwStyle = GetWindowLongW (hwnd, GWL_STYLE);
  51
  52         if (!IsWindowEnabled (hwnd))
  53             state = ETS_DISABLED;
  54         else if (dwStyle & ES_READONLY)
  55             state = ETS_READONLY;
  56         else if (GetFocus() == hwnd)
  57             state = ETS_FOCUSED;
  58
  59         GetWindowRect(hwnd, &r);
  60
  61         /* New clipping region passed to default proc to exclude border */
  62         cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
  63             r.right - cxEdge, r.bottom - cyEdge);
  64         if (region != (HRGN)1)
  65             CombineRgn (cliprgn, cliprgn, region, RGN_AND);
  66         OffsetRect(&r, -r.left, -r.top);
  67
  68         dc = GetDCEx(hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
  69         OffsetRect(&r, -r.left, -r.top);
  70
  71         if (IsThemeBackgroundPartiallyTransparent (theme, part, state))
  72             DrawThemeParentBackground(hwnd, dc, &r);
  73         DrawThemeBackground (theme, dc, part, state, &r, 0);
  74         ReleaseDC(hwnd, dc);
  75     }
  76
  77     /* Call default proc to get the scrollbars etc. also painted */
  78     DefWindowProcW (hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
  79 }
  80
  81 /**********************************************************************
  82  * The edit control subclass window proc.
  83  */
  84 LRESULT CALLBACK THEMING_EditSubclassProc (HWND hwnd, UINT msg,
  85                                            WPARAM wParam, LPARAM lParam,
  86                                            ULONG_PTR dwRefData)
  87 {
  88     const WCHAR* themeClass = WC_EDITW;
  89     HTHEME theme;
  90     LRESULT result;
  91
  92     switch (msg)
  93     {
  94     case WM_CREATE:
  95         result = THEMING_CallOriginalClass  (hwnd, msg, wParam, lParam);
  96         OpenThemeData( hwnd, themeClass );
  97         return result;
  98
  99     case WM_DESTROY:
 100         theme = GetWindowTheme( hwnd );
 101         CloseThemeData ( theme );
 102         return THEMING_CallOriginalClass (hwnd, msg, wParam, lParam);
 103
 104     case WM_THEMECHANGED:
 105         theme = GetWindowTheme( hwnd );
 106         CloseThemeData ( theme );
 107         OpenThemeData( hwnd, themeClass );
 108         break;
 109
 110     case WM_SYSCOLORCHANGE:
 111         theme = GetWindowTheme( hwnd );
 112         if (!theme) return THEMING_CallOriginalClass (hwnd, msg, wParam, lParam);
 113         /* Do nothing. When themed, a WM_THEMECHANGED will be received, too,
 114          * which will do the repaint. */
 115         break;
 116
 117     case WM_NCPAINT:
 118         theme = GetWindowTheme( hwnd );
 119         if (!theme) return THEMING_CallOriginalClass (hwnd, msg, wParam, lParam);
 120         nc_paint (theme, hwnd, (HRGN)wParam);
 121         break;
 122
 123     case WM_ENABLE:
 124         theme = GetWindowTheme( hwnd );
 125         if (theme) RedrawWindow (hwnd, NULL, NULL,
 126             RDW_FRAME | RDW_INVALIDATE | RDW_UPDATENOW);
 127         return THEMING_CallOriginalClass (hwnd, msg, wParam, lParam);
 128
 129     default:
 130         /* Call old proc */
 131         return THEMING_CallOriginalClass (hwnd, msg, wParam, lParam);
 132     }
 133     return 0;
 134 }