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126 lines
4.6 KiB
C++
126 lines
4.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/* rendering object for list-item bullets */
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#ifndef nsBulletFrame_h___
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#define nsBulletFrame_h___
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#include "nsFrame.h"
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#include "nsStyleContext.h"
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#include "imgIRequest.h"
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#include "imgIDecoderObserver.h"
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/**
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* A simple class that manages the layout and rendering of html bullets.
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* This class also supports the CSS list-style properties.
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*/
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class nsBulletFrame : public nsFrame {
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public:
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NS_DECL_FRAMEARENA_HELPERS
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nsBulletFrame(nsStyleContext* aContext) : nsFrame(aContext) {}
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virtual ~nsBulletFrame();
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// nsIFrame
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virtual void DestroyFrom(nsIFrame* aDestructRoot);
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NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists);
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virtual nsIAtom* GetType() const;
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virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext);
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#ifdef NS_DEBUG
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NS_IMETHOD GetFrameName(nsAString& aResult) const;
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#endif
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// nsIHTMLReflow
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NS_IMETHOD Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aMetrics,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus);
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virtual nscoord GetMinWidth(nsIRenderingContext *aRenderingContext);
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virtual nscoord GetPrefWidth(nsIRenderingContext *aRenderingContext);
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// nsBulletFrame
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PRInt32 SetListItemOrdinal(PRInt32 aNextOrdinal, PRBool* aChanged);
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NS_IMETHOD OnStartContainer(imgIRequest *aRequest, imgIContainer *aImage);
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NS_IMETHOD OnDataAvailable(imgIRequest *aRequest,
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PRBool aCurrentFrame,
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const nsIntRect *aRect);
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NS_IMETHOD OnStopDecode(imgIRequest *aRequest,
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nsresult aStatus,
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const PRUnichar *aStatusArg);
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NS_IMETHOD FrameChanged(imgIContainer *aContainer,
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nsIntRect *aDirtyRect);
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/* get list item text, without '.' */
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static PRBool AppendCounterText(PRInt32 aListStyleType,
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PRInt32 aOrdinal,
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nsString& aResult);
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/* get list item text, with '.' */
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PRBool GetListItemText(const nsStyleList& aStyleList,
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nsString& aResult);
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void PaintBullet(nsIRenderingContext& aRenderingContext, nsPoint aPt,
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const nsRect& aDirtyRect);
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virtual PRBool IsEmpty();
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virtual PRBool IsSelfEmpty();
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protected:
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void GetDesiredSize(nsPresContext* aPresContext,
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nsIRenderingContext *aRenderingContext,
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nsHTMLReflowMetrics& aMetrics);
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void GetLoadGroup(nsPresContext *aPresContext, nsILoadGroup **aLoadGroup);
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nsMargin mPadding;
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nsCOMPtr<imgIRequest> mImageRequest;
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nsCOMPtr<imgIDecoderObserver> mListener;
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nsSize mIntrinsicSize;
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nsSize mComputedSize;
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PRInt32 mOrdinal;
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PRBool mTextIsRTL;
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};
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#endif /* nsBulletFrame_h___ */
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