The Tor Browser: image/src/ImageOps.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-

     2  *

     3  * This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 #ifndef MOZILLA_IMAGELIB_IMAGEOPS_H_

     8 #define MOZILLA_IMAGELIB_IMAGEOPS_H_

    10 #include "nsCOMPtr.h"

    12 class imgIContainer;

    13 struct nsIntRect;

    15 namespace mozilla {

    16 namespace image {

    18 class Image;

    19 class Orientation;

    21 class ImageOps

    22 {

    23 public:

    24   /**

    25    * Creates a version of an existing image which does not animate and is frozen

    26    * at the first frame.

    27    *

    28    * @param aImage         The existing image.

    29    */

    30   static already_AddRefed<Image> Freeze(Image* aImage);

    31   static already_AddRefed<imgIContainer> Freeze(imgIContainer* aImage);

    33   /**

    34    * Creates a clipped version of an existing image. Animation is unaffected.

    35    *

    36    * @param aImage         The existing image.

    37    * @param aClip          The rectangle to clip the image against.

    38    */

    39   static already_AddRefed<Image> Clip(Image* aImage, nsIntRect aClip);

    40   static already_AddRefed<imgIContainer> Clip(imgIContainer* aImage, nsIntRect aClip);

    42   /**

    43    * Creates a version of an existing image which is rotated and/or flipped to

    44    * the specified orientation.

    45    *

    46    * @param aImage         The existing image.

    47    * @param aOrientation   The desired orientation.

    48    */

    49   static already_AddRefed<Image> Orient(Image* aImage, Orientation aOrientation);

    50   static already_AddRefed<imgIContainer> Orient(imgIContainer* aImage, Orientation aOrientation);

    52 private:

    53   // This is a static utility class, so disallow instantiation.

    54   virtual ~ImageOps() = 0;

    55 };

    57 } // namespace image

    58 } // namespace mozilla

    60 #endif // MOZILLA_IMAGELIB_IMAGEOPS_H_

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