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lightning-sunbird  0.9+nobinonly
nsHTMLCanvasFrame.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  *   Vladimir Vukicevic <vladimir@pobox.com>
00019  * Portions created by the Initial Developer are Copyright (C) 2005
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either of the GNU General Public License Version 2 or later (the "GPL"),
00026  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
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00033  * the provisions above, a recipient may use your version of this file under
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00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 #ifndef nsHTMLCanvasFrame_h___
00038 #define nsHTMLCanvasFrame_h___
00039 
00040 #include "nsSplittableFrame.h"
00041 #include "nsString.h"
00042 #include "nsAString.h"
00043 #include "nsPresContext.h"
00044 #include "nsIIOService.h"
00045 
00046 nsresult NS_NewHTMLCanvasFrame (nsIPresShell* aPresShell, nsIFrame** aNewFrame);
00047 
00048 class nsHTMLCanvasFrame : public nsSplittableFrame
00049 {
00050 public:
00051   nsHTMLCanvasFrame();
00052 
00053   NS_IMETHOD Paint(nsPresContext*      aPresContext,
00054                    nsIRenderingContext& aRenderingContext,
00055                    const nsRect&        aDirtyRect,
00056                    nsFramePaintLayer    aWhichLayer,
00057                    PRUint32             aFlags = 0);
00058   NS_IMETHOD Reflow(nsPresContext*          aPresContext,
00059                     nsHTMLReflowMetrics&     aDesiredSize,
00060                     const nsHTMLReflowState& aReflowState,
00061                     nsReflowStatus&          aStatus);
00062   
00063   NS_IMETHOD CanContinueTextRun(PRBool& aContinueTextRun) const;
00064 
00065 
00066   NS_IMETHOD GetContentForEvent(nsPresContext* aPresContext,
00067                                 nsEvent* aEvent,
00068                                 nsIContent** aContent);
00069 
00070   nsRect GetInnerArea() const;
00071 
00072 #ifdef ACCESSIBILITY
00073   NS_IMETHOD GetAccessible(nsIAccessible** aAccessible);
00074 #endif
00075 
00076   virtual nsIAtom* GetType() const;
00077 #ifdef DEBUG
00078   NS_IMETHOD GetFrameName(nsAString& aResult) const;
00079   NS_IMETHOD List(nsPresContext* aPresContext, FILE* out, PRInt32 aIndent) const;
00080 #endif
00081 
00082 protected:
00083   virtual ~nsHTMLCanvasFrame();
00084 
00085   nscoord GetContinuationOffset(nscoord* aWidth = 0) const;
00086 
00087   nsMargin mBorderPadding;
00088   nsSize mCanvasSize;
00089 };
00090 
00091 #endif /* nsHTMLCanvasFrame_h___ */