2 * Theming - Initialization
4 * Copyright (c) 2005 by Frank Richter
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.
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.
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
30 #include "wine/debug.h"
32 WINE_DEFAULT_DEBUG_CHANNEL(theming);
34 typedef LRESULT (CALLBACK* THEMING_SUBCLASSPROC)(HWND, UINT, WPARAM, LPARAM,
37 extern LRESULT CALLBACK THEMING_ButtonSubclassProc (HWND, UINT, WPARAM, LPARAM,
38 ULONG_PTR) DECLSPEC_HIDDEN;
39 extern LRESULT CALLBACK THEMING_ComboSubclassProc (HWND, UINT, WPARAM, LPARAM,
40 ULONG_PTR) DECLSPEC_HIDDEN;
41 extern LRESULT CALLBACK THEMING_DialogSubclassProc (HWND, UINT, WPARAM, LPARAM,
42 ULONG_PTR) DECLSPEC_HIDDEN;
43 extern LRESULT CALLBACK THEMING_EditSubclassProc (HWND, UINT, WPARAM, LPARAM,
44 ULONG_PTR) DECLSPEC_HIDDEN;
45 extern LRESULT CALLBACK THEMING_ListBoxSubclassProc (HWND, UINT, WPARAM, LPARAM,
46 ULONG_PTR) DECLSPEC_HIDDEN;
48 static const WCHAR dialogClass[] = {'#','3','2','7','7','0',0};
49 static const WCHAR comboLboxClass[] = {'C','o','m','b','o','L','b','o','x',0};
51 static const struct ThemingSubclass
53 const WCHAR* className;
54 THEMING_SUBCLASSPROC subclassProc;
56 /* Note: list must be sorted by class name */
57 {dialogClass, THEMING_DialogSubclassProc},
58 {WC_BUTTONW, THEMING_ButtonSubclassProc},
59 {WC_COMBOBOXW, THEMING_ComboSubclassProc},
60 {comboLboxClass, THEMING_ListBoxSubclassProc},
61 {WC_EDITW, THEMING_EditSubclassProc},
62 {WC_LISTBOXW, THEMING_ListBoxSubclassProc}
65 #define NUM_SUBCLASSES (sizeof(subclasses)/sizeof(subclasses[0]))
67 static WNDPROC originalProcs[NUM_SUBCLASSES];
68 static ATOM atRefDataProp;
69 static ATOM atSubclassProp;
71 /* Generate a number of subclass window procs.
72 * With a single proc alone, we can't really reliably find out the superclass,
73 * so have one for each subclass. The subclass number is also stored in a prop
74 * since it's needed by THEMING_CallOriginalClass(). Then, the subclass
75 * proc and ref data are fetched and the proc called.
77 #define MAKE_SUBCLASS_PROC(N) \
78 static LRESULT CALLBACK subclass_proc ## N (HWND wnd, UINT msg, \
79 WPARAM wParam, LPARAM lParam) \
83 SetPropW (wnd, (LPCWSTR)MAKEINTATOM(atSubclassProp), (HANDLE)N); \
84 refData = (ULONG_PTR)GetPropW (wnd, (LPCWSTR)MAKEINTATOM(atRefDataProp)); \
85 TRACE ("%d; (%p, %x, %lx, %lx, %lx)\n", N, wnd, msg, wParam, lParam, \
87 result = subclasses[N].subclassProc (wnd, msg, wParam, lParam, refData);\
88 TRACE ("result = %lx\n", result); \
99 static const WNDPROC subclassProcs[NUM_SUBCLASSES] = {
108 /***********************************************************************
111 * Register classes for standard controls that will shadow the system
114 void THEMING_Initialize (void)
117 static const WCHAR subclassPropName[] =
118 { 'C','C','3','2','T','h','e','m','i','n','g','S','u','b','C','l',0 };
119 static const WCHAR refDataPropName[] =
120 { 'C','C','3','2','T','h','e','m','i','n','g','D','a','t','a',0 };
122 if (!IsThemeActive()) return;
124 atSubclassProp = GlobalAddAtomW (subclassPropName);
125 atRefDataProp = GlobalAddAtomW (refDataPropName);
127 for (i = 0; i < NUM_SUBCLASSES; i++)
131 class.cbSize = sizeof(class);
132 if (!GetClassInfoExW (NULL, subclasses[i].className, &class))
134 ERR("Could not retrieve information for class %s\n",
135 debugstr_w (subclasses[i].className));
138 originalProcs[i] = class.lpfnWndProc;
139 class.lpfnWndProc = subclassProcs[i];
141 if (!class.lpfnWndProc)
143 ERR("Missing proc for class %s\n",
144 debugstr_w (subclasses[i].className));
148 if (!RegisterClassExW (&class))
150 ERR("Could not re-register class %s: %x\n",
151 debugstr_w (subclasses[i].className), GetLastError ());
155 TRACE("Re-registered class %s\n",
156 debugstr_w (subclasses[i].className));
161 /***********************************************************************
162 * THEMING_Uninitialize
164 * Unregister shadow classes for standard controls.
166 void THEMING_Uninitialize (void)
170 if (!atSubclassProp) return; /* not initialized */
172 for (i = 0; i < NUM_SUBCLASSES; i++)
174 UnregisterClassW (subclasses[i].className, NULL);
178 /***********************************************************************
179 * THEMING_CallOriginalClass
181 * Determines the original window proc and calls it.
183 LRESULT THEMING_CallOriginalClass (HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam)
185 INT_PTR subclass = (INT_PTR)GetPropW (wnd, (LPCWSTR)MAKEINTATOM(atSubclassProp));
186 WNDPROC oldProc = originalProcs[subclass];
187 return CallWindowProcW (oldProc, wnd, msg, wParam, lParam);
190 /***********************************************************************
191 * THEMING_SetSubclassData
193 * Update the "refData" value of the subclassed window.
195 void THEMING_SetSubclassData (HWND wnd, ULONG_PTR refData)
197 SetPropW (wnd, (LPCWSTR)MAKEINTATOM(atRefDataProp), (HANDLE)refData);