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91 lines
3.3 KiB
C++
91 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 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 Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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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.org code.
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*
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* The Initial Developer of the Original Code is
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* Vladimir Vukicevic <vladimir@pobox.com>
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* Portions created by the Initial Developer are Copyright (C) 2005
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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 MPL, 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 MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsICanvasElementExternal_h___
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#define nsICanvasElementExternal_h___
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#include "nsISupports.h"
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#include "gfxPattern.h"
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class gfxContext;
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class nsIFrame;
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struct gfxRect;
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#define NS_ICANVASELEMENTEXTERNAL_IID \
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{ 0x51870f54, 0x6c4c, 0x469a, {0xad, 0x46, 0xf0, 0xa9, 0x8e, 0x32, 0xa7, 0xe2 } }
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class nsRenderingContext;
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class nsICanvasRenderingContextInternal;
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struct _cairo_surface;
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/*
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* This interface contains methods that are needed outside of the content/layout
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* modules, specifically widget. It should eventually go away when we support
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* libxul builds, and nsHTMLCanvasElement be used directly.
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*
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* Code internal to content/layout should /never/ use this interface; if the
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* same functionality is needed in both places, two separate methods should be
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* used.
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*/
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class nsICanvasElementExternal : public nsISupports {
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_ICANVASELEMENTEXTERNAL_IID)
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enum {
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RenderFlagPremultAlpha = 0x1
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};
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/**
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* Get the size in pixels of this canvas element
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*/
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NS_IMETHOD_(nsIntSize) GetSizeExternal() = 0;
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/*
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* Ask the canvas element to tell the contexts to render themselves
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* to the given gfxContext at the origin of its coordinate space.
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*/
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NS_IMETHOD RenderContextsExternal(gfxContext *ctx,
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gfxPattern::GraphicsFilter aFilter,
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PRUint32 aFlags = RenderFlagPremultAlpha) = 0;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsICanvasElementExternal, NS_ICANVASELEMENTEXTERNAL_IID)
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#endif /* nsICanvasElementExternal_h___ */
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