gecko-dev/modules/libpr0n/public/imgIContainer.idl

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/** -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 2001 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Stuart Parmenter <pavlov@netscape.com>
*/
#include "nsISupports.idl"
#include "gfxtypes.idl"
#include "gfxIFormats.idl"
interface gfxIImageFrame;
interface nsIEnumerator;
interface imgIContainerObserver;
/**
* gfxIImageContainer interface
*
* @author Stuart Parmenter <pavlov@netscape.com>
* @version 0.1
* @see "gfx2"
*/
[scriptable, uuid(5e8405a4-1dd2-11b2-8385-bc8e3446cad3)]
interface imgIContainer : nsISupports
{
/**
* Create a new \a aWidth x \a aHeight sized image container.
*
* @param aWidth The width of the container in which all the
* gfxIImageFrame children will fit.
* @param aHeight The height of the container in which all the
* gfxIImageFrame children will fit.
* @param aObserver Observer to send animation notifications to.
*/
void init(in nscoord aWidth,
in nscoord aHeight,
in imgIContainerObserver aObserver);
/* this should probably be on the device context (or equiv) */
readonly attribute gfx_format preferredAlphaChannelFormat;
/**
* The width of the container rectangle.
*/
readonly attribute nscoord width;
/**
* The height of the container rectangle.
*/
readonly attribute nscoord height;
/**
* Get the current frame that would be drawn if the image was to be drawn now
*/
readonly attribute gfxIImageFrame currentFrame;
readonly attribute unsigned long numFrames;
/**
* Animation mode.
* 0 = normal
* 1 = don't animate
* 2 = loop once
*/
attribute unsigned short animationMode;
gfxIImageFrame getFrameAt(in unsigned long index);
/**
* Adds \a item to the end of the list of frames.
* @param item frame to add.
*/
void appendFrame(in gfxIImageFrame item);
void removeFrame(in gfxIImageFrame item);
/* notification when the current frame is done decoding */
void endFrameDecode(in unsigned long framenumber, in unsigned long timeout);
/* notification that the entire image has been decoded */
void decodingComplete();
nsIEnumerator enumerate();
void clear();
void startAnimation();
void stopAnimation();
/* animation stuff */
/**
* number of times to loop the image.
* @note -1 means forever.
*/
attribute long loopCount;
};