зеркало из https://github.com/mozilla/pjs.git
111 строки
4.0 KiB
C++
111 строки
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Vladimir Vukicevic <vladimir@pobox.com>
|
|
* Portions created by the Initial Developer are Copyright (C) 2005
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
/* rendering object for the HTML <canvas> element */
|
|
|
|
#ifndef nsHTMLCanvasFrame_h___
|
|
#define nsHTMLCanvasFrame_h___
|
|
|
|
#include "nsSplittableFrame.h"
|
|
#include "nsString.h"
|
|
#include "nsAString.h"
|
|
#include "nsPresContext.h"
|
|
#include "nsIIOService.h"
|
|
|
|
nsIFrame* NS_NewHTMLCanvasFrame (nsIPresShell* aPresShell, nsStyleContext* aContext);
|
|
|
|
class nsHTMLCanvasFrame : public nsSplittableFrame
|
|
{
|
|
public:
|
|
nsHTMLCanvasFrame(nsStyleContext* aContext) : nsSplittableFrame(aContext) {}
|
|
|
|
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aDirtyRect,
|
|
const nsDisplayListSet& aLists);
|
|
|
|
void PaintCanvas(nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect, nsPoint aPt);
|
|
|
|
/* get the size of the canvas's image */
|
|
nsSize GetCanvasSize();
|
|
|
|
virtual nscoord GetMinWidth(nsIRenderingContext *aRenderingContext);
|
|
virtual nscoord GetPrefWidth(nsIRenderingContext *aRenderingContext);
|
|
virtual nsSize GetIntrinsicRatio();
|
|
|
|
virtual nsSize ComputeSize(nsIRenderingContext *aRenderingContext,
|
|
nsSize aCBSize, nscoord aAvailableWidth,
|
|
nsSize aMargin, nsSize aBorder, nsSize aPadding,
|
|
PRBool aShrinkWrap);
|
|
|
|
NS_IMETHOD Reflow(nsPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus);
|
|
|
|
NS_IMETHOD GetContentForEvent(nsPresContext* aPresContext,
|
|
nsEvent* aEvent,
|
|
nsIContent** aContent);
|
|
|
|
nsRect GetInnerArea() const;
|
|
|
|
#ifdef ACCESSIBILITY
|
|
NS_IMETHOD GetAccessible(nsIAccessible** aAccessible);
|
|
#endif
|
|
|
|
virtual nsIAtom* GetType() const;
|
|
|
|
virtual PRBool IsFrameOfType(PRUint32 aFlags) const
|
|
{
|
|
return nsSplittableFrame::IsFrameOfType(aFlags & ~(nsIFrame::eReplaced));
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
NS_IMETHOD GetFrameName(nsAString& aResult) const;
|
|
NS_IMETHOD List(FILE* out, PRInt32 aIndent) const;
|
|
#endif
|
|
|
|
protected:
|
|
virtual ~nsHTMLCanvasFrame();
|
|
|
|
nscoord GetContinuationOffset(nscoord* aWidth = 0) const;
|
|
|
|
nsMargin mBorderPadding;
|
|
};
|
|
|
|
#endif /* nsHTMLCanvasFrame_h___ */
|