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lightning-sunbird  0.9+nobinonly
nsNativeThemeGTK.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 2002
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *  Brian Ryner <bryner@brianryner.com>  (Original Author)
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either the GNU General Public License Version 2 or later (the "GPL"), or
00027  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
00029  * of those above. If you wish to allow use of your version of this file only
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00033  * and other provisions required by the GPL or the LGPL. If you do not delete
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00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 #include "nsITheme.h"
00040 #include "nsCOMPtr.h"
00041 #include "nsIAtom.h"
00042 #include "nsIObserver.h"
00043 #include "nsNativeTheme.h"
00044 
00045 #include <gtk/gtkwidget.h>
00046 #include "gtkdrawing.h"
00047 
00048 class nsNativeThemeGTK: private nsNativeTheme,
00049                         public nsITheme,
00050                         public nsIObserver {
00051 public:
00052   NS_DECL_ISUPPORTS
00053 
00054   NS_DECL_NSIOBSERVER
00055 
00056   // The nsITheme interface.
00057   NS_IMETHOD DrawWidgetBackground(nsIRenderingContext* aContext,
00058                                   nsIFrame* aFrame, PRUint8 aWidgetType,
00059                                   const nsRect& aRect,
00060                                   const nsRect& aClipRect);
00061 
00062   NS_IMETHOD GetWidgetBorder(nsIDeviceContext* aContext, nsIFrame* aFrame,
00063                              PRUint8 aWidgetType, nsMargin* aResult);
00064 
00065   virtual NS_HIDDEN_(PRBool) GetWidgetPadding(nsIDeviceContext* aContext,
00066                                               nsIFrame* aFrame,
00067                                               PRUint8 aWidgetType,
00068                                               nsMargin* aResult);
00069 
00070   virtual NS_HIDDEN_(PRBool) GetWidgetOverflow(nsIDeviceContext* aContext,
00071                                                nsIFrame* aFrame,
00072                                                PRUint8 aWidgetType,
00073                                                nsRect* aResult);
00074 
00075   NS_IMETHOD GetMinimumWidgetSize(nsIRenderingContext* aContext,
00076                                   nsIFrame* aFrame, PRUint8 aWidgetType,
00077                                   nsSize* aResult, PRBool* aIsOverridable);
00078 
00079   NS_IMETHOD WidgetStateChanged(nsIFrame* aFrame, PRUint8 aWidgetType, 
00080                                 nsIAtom* aAttribute, PRBool* aShouldRepaint);
00081 
00082   NS_IMETHOD ThemeChanged();
00083 
00084   NS_IMETHOD_(PRBool) ThemeSupportsWidget(nsPresContext* aPresContext,
00085                                           nsIFrame* aFrame,
00086                                           PRUint8 aWidgetType);
00087 
00088   NS_IMETHOD_(PRBool) WidgetIsContainer(PRUint8 aWidgetType);
00089 
00090   nsNativeThemeGTK();
00091   virtual ~nsNativeThemeGTK();
00092 
00093 private:
00094   PRBool GetGtkWidgetAndState(PRUint8 aWidgetType, nsIFrame* aFrame,
00095                               GtkThemeWidgetType& aGtkWidgetType,
00096                               GtkWidgetState* aState, gint* aWidgetFlags);
00097 
00098   void RefreshWidgetWindow(nsIFrame* aFrame);
00099 
00100   nsCOMPtr<nsIAtom> mTypeAtom;
00101   nsCOMPtr<nsIAtom> mInputCheckedAtom;
00102   nsCOMPtr<nsIAtom> mInputAtom;
00103   nsCOMPtr<nsIAtom> mCurPosAtom;
00104   nsCOMPtr<nsIAtom> mMaxPosAtom;
00105   nsCOMPtr<nsIAtom> mMenuActiveAtom;
00106 
00107   PRUint8 mDisabledWidgetTypes[32];
00108   PRUint8 mSafeWidgetStates[1024];    // 256 widgets * 32 bits per widget
00109   static const char* sDisabledEngines[];
00110 };