162 lines
5.8 KiB
C++
162 lines
5.8 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: NPL 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 Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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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 the GNU General Public License Version 2 or later (the "GPL"), or
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* 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 NPL, 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 NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsImageBoxFrame_h___
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#define nsImageBoxFrame_h___
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#include "nsLeafBoxFrame.h"
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#include "imgILoader.h"
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#include "imgIRequest.h"
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#include "imgIContainer.h"
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#include "imgIDecoderObserver.h"
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class nsImageBoxFrame;
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class nsImageBoxListener : imgIDecoderObserver
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{
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public:
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nsImageBoxListener();
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virtual ~nsImageBoxListener();
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NS_DECL_ISUPPORTS
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NS_DECL_IMGIDECODEROBSERVER
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NS_DECL_IMGICONTAINEROBSERVER
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void SetFrame(nsImageBoxFrame *frame) { mFrame = frame; }
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private:
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nsImageBoxFrame *mFrame;
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};
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class nsImageBoxFrame : public nsLeafBoxFrame
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{
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public:
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// nsIBox
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NS_IMETHOD GetPrefSize(nsBoxLayoutState& aBoxLayoutState, nsSize& aSize);
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NS_IMETHOD GetMinSize(nsBoxLayoutState& aBoxLayoutState, nsSize& aSize);
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NS_IMETHOD GetAscent(nsBoxLayoutState& aBoxLayoutState, nscoord& aAscent);
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NS_IMETHOD DoLayout(nsBoxLayoutState& aBoxLayoutState);
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NS_IMETHOD NeedsRecalc();
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friend nsresult NS_NewImageBoxFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame);
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// nsIBox frame interface
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NS_IMETHOD Init(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsIStyleContext* aContext,
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nsIFrame* asPrevInFlow);
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NS_IMETHOD AttributeChanged(nsIPresContext* aPresContext,
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nsIContent* aChild,
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PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aModType,
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PRInt32 aHint);
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NS_IMETHOD DidSetStyleContext (nsIPresContext* aPresContext);
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NS_IMETHOD Destroy(nsIPresContext* aPresContext);
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#ifdef DEBUG
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NS_IMETHOD GetFrameName(nsAString& aResult) const;
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#endif
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void UpdateAttributes(nsIPresContext* aPresContext, nsIAtom* aAttribute, PRBool& aResize, PRBool& aRedraw);
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void UpdateImage(nsIPresContext* aPresContext, PRBool& aResize);
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void UpdateLoadFlags();
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NS_IMETHOD Paint(nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer,
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PRUint32 aFlags = 0);
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NS_IMETHOD OnStartDecode(imgIRequest *request, nsIPresContext *cx);
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NS_IMETHOD OnStartContainer(imgIRequest *request, nsIPresContext *cx, imgIContainer *image);
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NS_IMETHOD OnStartFrame(imgIRequest *request, nsIPresContext *cx, gfxIImageFrame *frame);
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NS_IMETHOD OnDataAvailable(imgIRequest *request, nsIPresContext *cx, gfxIImageFrame *frame, const nsRect * rect);
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NS_IMETHOD OnStopFrame(imgIRequest *request, nsIPresContext *cx, gfxIImageFrame *frame);
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NS_IMETHOD OnStopContainer(imgIRequest *request, nsIPresContext *cx, imgIContainer *image);
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NS_IMETHOD OnStopDecode(imgIRequest *request, nsIPresContext *cx, nsresult status, const PRUnichar *statusArg);
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NS_IMETHOD FrameChanged(imgIContainer *container, nsIPresContext *cx, gfxIImageFrame *newframe, nsRect * dirtyRect);
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virtual ~nsImageBoxFrame();
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protected:
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void CacheImageSize(nsBoxLayoutState& aBoxLayoutState);
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NS_IMETHOD PaintImage(nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer);
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nsImageBoxFrame(nsIPresShell* aShell);
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void GetImageSource();
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void GetBaseURI(nsIURI **uri);
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void GetLoadGroup(nsIPresContext *aPresContext, nsILoadGroup **group);
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virtual void GetImageSize(nsIPresContext* aPresContext);
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private:
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nsCOMPtr<imgIRequest> mImageRequest;
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nsCOMPtr<imgIDecoderObserver> mListener;
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nsString mSrc; // The raw image source.
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PRPackedBool mUseSrcAttr; // Whether or not the image src comes from an attribute.
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PRPackedBool mSizeFrozen;
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PRPackedBool mHasImage;
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nsRect mSubRect; // If set, indicates that only the portion of the image specified by the rect should be used.
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nsSize mIntrinsicSize;
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PRInt32 mLoadFlags;
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nsSize mImageSize;
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PRBool mSuppressStyleCheck;
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}; // class nsImageBoxFrame
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#endif /* nsImageBoxFrame_h___ */
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