DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139
/* -*- 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
 * the Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Daniel Holbert <dholbert@mozilla.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either 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 ***** */

#ifndef mozilla_imagelib_VectorImage_h_
#define mozilla_imagelib_VectorImage_h_

#include "Image.h"
#include "nsIStreamListener.h"
#include "nsWeakReference.h"
#include "mozilla/TimeStamp.h"

class imgIDecoderObserver;

namespace mozilla {
namespace layers {
class LayerManager;
class ImageContainer;
}
namespace image {

class SVGDocumentWrapper;
class SVGRootRenderingObserver;

class VectorImage : public Image,
                    public nsIStreamListener
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIREQUESTOBSERVER
  NS_DECL_NSISTREAMLISTENER

  // BEGIN NS_DECL_IMGICONTAINER (minus GetAnimationMode/SetAnimationMode)
  // ** Don't edit this chunk except to mirror changes in imgIContainer.idl **
  NS_SCRIPTABLE NS_IMETHOD GetWidth(PRInt32 *aWidth);
  NS_SCRIPTABLE NS_IMETHOD GetHeight(PRInt32 *aHeight);
  NS_SCRIPTABLE NS_IMETHOD GetType(PRUint16 *aType);
  NS_IMETHOD_(PRUint16) GetType(void);
  NS_SCRIPTABLE NS_IMETHOD GetAnimated(bool *aAnimated);
  NS_SCRIPTABLE NS_IMETHOD GetCurrentFrameIsOpaque(bool *aCurrentFrameIsOpaque);
  NS_IMETHOD GetFrame(PRUint32 aWhichFrame, PRUint32 aFlags, gfxASurface **_retval NS_OUTPARAM);
  NS_IMETHOD GetImageContainer(mozilla::layers::ImageContainer **_retval NS_OUTPARAM) { *_retval = NULL; return NS_OK; }
  NS_IMETHOD CopyFrame(PRUint32 aWhichFrame, PRUint32 aFlags, gfxImageSurface **_retval NS_OUTPARAM);
  NS_IMETHOD ExtractFrame(PRUint32 aWhichFrame, const nsIntRect & aRect, PRUint32 aFlags, imgIContainer **_retval NS_OUTPARAM);
  NS_IMETHOD Draw(gfxContext *aContext, gfxPattern::GraphicsFilter aFilter, const gfxMatrix & aUserSpaceToImageSpace, const gfxRect & aFill, const nsIntRect & aSubimage, const nsIntSize & aViewportSize, PRUint32 aFlags);
  NS_IMETHOD_(nsIFrame *) GetRootLayoutFrame(void);
  NS_SCRIPTABLE NS_IMETHOD RequestDecode(void);
  NS_SCRIPTABLE NS_IMETHOD LockImage(void);
  NS_SCRIPTABLE NS_IMETHOD UnlockImage(void);
  NS_SCRIPTABLE NS_IMETHOD RequestDiscard(void);
  NS_SCRIPTABLE NS_IMETHOD ResetAnimation(void);
  NS_IMETHOD_(void) RequestRefresh(const mozilla::TimeStamp& aTime);
  // END NS_DECL_IMGICONTAINER

  VectorImage(imgStatusTracker* aStatusTracker = nsnull);
  virtual ~VectorImage();

  // Methods inherited from Image
  nsresult Init(imgIDecoderObserver* aObserver,
                const char* aMimeType,
                const char* aURIString,
                PRUint32 aFlags);
  void GetCurrentFrameRect(nsIntRect& aRect);

  virtual size_t HeapSizeOfSourceWithComputedFallback(nsMallocSizeOfFun aMallocSizeOf) const;
  virtual size_t HeapSizeOfDecodedWithComputedFallback(nsMallocSizeOfFun aMallocSizeOf) const;
  virtual size_t NonHeapSizeOfDecoded() const;
  virtual size_t OutOfProcessSizeOfDecoded() const;

  // Callback for SVGRootRenderingObserver
  void InvalidateObserver();

protected:
  virtual nsresult StartAnimation();
  virtual nsresult StopAnimation();
  virtual bool     ShouldAnimate();

private:
  nsWeakPtr                          mObserver;   //! imgIDecoderObserver
  nsRefPtr<SVGDocumentWrapper>       mSVGDocumentWrapper;
  nsRefPtr<SVGRootRenderingObserver> mRenderingObserver;

  nsIntRect      mRestrictedRegion;       // If we were created by
                                          // ExtractFrame, this is the region
                                          // that we're restricted to using.
                                          // Otherwise, this is ignored.

  nsIntSize      mLastRenderedSize;       // The viewport-size that we've
                                          // most recently passed to
                                          // mSVGDocumentWrapper as its
                                          // viewport-bounds.

  bool           mIsInitialized:1;        // Have we been initalized?
  bool           mIsFullyLoaded:1;        // Has OnStopRequest been called?
  bool           mIsDrawing:1;            // Are we currently drawing?
  bool           mHaveAnimations:1;       // Is our SVG content SMIL-animated?
                                          // (Only set after mIsFullyLoaded.)
  bool           mHaveRestrictedRegion:1; // Are we a restricted-region clone
                                          // created via ExtractFrame?
};

} // namespace image
} // namespace mozilla

#endif // mozilla_imagelib_VectorImage_h_