зеркало из https://github.com/mozilla/pjs.git
209 строки
7.1 KiB
C++
209 строки
7.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#ifndef nsImageFrame_h___
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#define nsImageFrame_h___
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#include "nsLeafFrame.h"
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#include "nsString.h"
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#include "nsAReadableString.h"
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#include "nsIPresContext.h"
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#include "nsIImageFrame.h"
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#include "nsTransform2D.h"
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#include "imgIRequest.h"
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#include "imgIDecoderObserver.h"
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#include "imgIContainerObserver.h"
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class nsIFrame;
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class nsImageMap;
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class nsIURI;
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class nsILoadGroup;
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struct nsHTMLReflowState;
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struct nsHTMLReflowMetrics;
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struct nsSize;
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class nsImageFrame;
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class nsImageListener : imgIDecoderObserver
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{
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public:
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nsImageListener(nsImageFrame *aFrame);
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virtual ~nsImageListener();
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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(nsImageFrame *frame) { mFrame = frame; }
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private:
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nsImageFrame *mFrame;
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};
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#define ImageFrameSuper nsLeafFrame
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class nsImageFrame : public ImageFrameSuper, public nsIImageFrame {
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public:
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nsImageFrame();
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// nsISupports
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NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
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NS_IMETHOD Destroy(nsIPresContext* aPresContext);
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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* aPrevInFlow);
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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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NS_IMETHOD Reflow(nsIPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus);
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NS_IMETHOD GetContentForEvent(nsIPresContext* aPresContext,
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nsEvent* aEvent,
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nsIContent** aContent);
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NS_IMETHOD HandleEvent(nsIPresContext* aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus* aEventStatus);
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NS_IMETHOD GetCursor(nsIPresContext* aPresContext,
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nsPoint& aPoint,
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PRInt32& aCursor);
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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 aHint);
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NS_IMETHOD GetAccessible(nsIAccessible** aAccessible);
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NS_IMETHOD GetFrameType(nsIAtom** aResult) const;
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NS_IMETHOD GetIntrinsicImageSize(nsSize& aSize);
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NS_IMETHOD GetNaturalImageSize(PRUint32* naturalWidth,
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PRUint32 *naturalHeight);
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NS_IMETHOD GetImageRequest(imgIRequest **aRequest);
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NS_IMETHOD IsImageComplete(PRBool* aComplete);
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#ifdef DEBUG
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NS_IMETHOD SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const;
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#endif
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NS_IMETHOD OnStartDecode(imgIRequest *aRequest, nsIPresContext *aCX);
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NS_IMETHOD OnStartContainer(imgIRequest *aRequest, nsIPresContext *aCX, imgIContainer *aImage);
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NS_IMETHOD OnStartFrame(imgIRequest *aRequest, nsIPresContext *aCX, gfxIImageFrame *aFrame);
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NS_IMETHOD OnDataAvailable(imgIRequest *aRequest, nsIPresContext *aCX, gfxIImageFrame *aFrame, const nsRect * rect);
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NS_IMETHOD OnStopFrame(imgIRequest *aRequest, nsIPresContext *aCX, gfxIImageFrame *aFrame);
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NS_IMETHOD OnStopContainer(imgIRequest *aRequest, nsIPresContext *aCX, imgIContainer *aImage);
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NS_IMETHOD OnStopDecode(imgIRequest *aRequest, nsIPresContext *aCX, nsresult aStatus, const PRUnichar *aStatusArg);
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NS_IMETHOD FrameChanged(imgIContainer *aContainer, nsIPresContext *aCX, gfxIImageFrame *aNewframe, nsRect *aDirtyRect);
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protected:
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// nsISupports
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NS_IMETHOD_(nsrefcnt) AddRef(void);
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NS_IMETHOD_(nsrefcnt) Release(void);
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virtual ~nsImageFrame();
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virtual void GetDesiredSize(nsIPresContext* aPresContext,
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const nsHTMLReflowState& aReflowState,
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nsHTMLReflowMetrics& aDesiredSize);
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nsImageMap* GetImageMap(nsIPresContext* aPresContext);
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void TriggerLink(nsIPresContext* aPresContext,
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const nsString& aURLSpec,
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const nsString& aTargetSpec,
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PRBool aClick);
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PRBool IsServerImageMap();
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void TranslateEventCoords(nsIPresContext* aPresContext,
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const nsPoint& aPoint,
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nsPoint& aResult);
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PRBool GetAnchorHREFAndTarget(nsString& aHref, nsString& aTarget);
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PRIntn GetSuppress();
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void MeasureString(const PRUnichar* aString,
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PRInt32 aLength,
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nscoord aMaxWidth,
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PRUint32& aMaxFit,
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nsIRenderingContext& aContext);
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void DisplayAltText(nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsString& aAltText,
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const nsRect& aRect);
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void DisplayAltFeedback(nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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PRInt32 aIconId);
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void GetInnerArea(nsIPresContext* aPresContext,
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nsRect& aInnerArea) const;
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nsresult LoadImage(const nsAReadableString& aSpec, nsIPresContext *aPresContext, imgIRequest **aRequest);
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inline PRBool CanLoadImage(nsIURI *aURI);
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inline void GetURI(const nsAReadableString& aSpec, nsIURI **aURI);
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inline void GetRealURI(const nsAReadableString& aSpec, nsIURI **aURI);
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inline void GetBaseURI(nsIURI **uri);
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inline void GetLoadGroup(nsIPresContext *aPresContext, nsILoadGroup **aLoadGroup);
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void FireDOMEvent(PRUint32 aMessage);
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nsImageMap* mImageMap;
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nsCOMPtr<imgIRequest> mImageRequest;
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nsCOMPtr<imgIRequest> mLowImageRequest;
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nsCOMPtr<imgIDecoderObserver> mListener;
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nsSize mComputedSize;
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nsSize mIntrinsicSize;
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nsTransform2D mTransform;
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PRPackedBool mSizeConstrained;
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PRPackedBool mGotInitialReflow;
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PRPackedBool mInitialLoadCompleted;
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PRPackedBool mCanSendLoadEvent;
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PRBool mFailureReplace;
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nsMargin mBorderPadding;
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PRUint32 mNaturalImageWidth,
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mNaturalImageHeight;
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};
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#endif /* nsImageFrame_h___ */
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