mirror of
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148 lines
4.5 KiB
Plaintext
148 lines
4.5 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; 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 the Mozilla SVG project.
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*
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* The Initial Developer of the Original Code is
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* Crocodile Clips Ltd.
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* Portions created by the Initial Developer are Copyright (C) 2002
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Alex Fritze <alex.fritze@crocodile-clips.com> (original author)
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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 of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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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#include "nsISupports.idl"
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%{C++
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struct nsRect;
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%}
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[ref] native nsRectRef(nsRect);
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typedef PRUint32 nscolor;
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interface nsIRenderingContext;
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interface nsPresContext;
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interface nsIDOMSVGMatrix;
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interface nsISVGRendererSurface;
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/**
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* \addtogroup renderer_interfaces Rendering Engine Interfaces
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* @{
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*/
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/**
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* One of a number of interfaces (all starting with nsISVGRenderer*)
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* to be implemented by an SVG rendering engine. See nsISVGRenderer
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* for more details.
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*
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* This interface abstracts a rendering engine-native canvas object
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* onto which path and glyph geometries can be painted.
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*
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* A canvas object is instantiated by the backend for a given
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* Mozilla-native rendering object with a call to
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* nsISVGRenderer::createCanvas().
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*/
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[uuid(2e64a227-de4b-4a69-ab82-5dda1579e90f)]
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interface nsISVGRendererCanvas : nsISupports
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{
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/**
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* Lock a portion of the canvas and obtain a rendering context onto
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* which Mozilla can paint non-svg content. This is needed for
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* (partial) foreignObject support.
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*
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* lockRenderingContext() calls are paired with
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* unlockRenderingContext() calls.
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*
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* @param rect Area to be locked.
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* @return Mozilla-native rendering context for the locked area.
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*/
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[noscript] nsIRenderingContext lockRenderingContext([const] in nsRectRef rect);
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/**
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* Unlock the canvas portion locked with a previous call to
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* lockRenderingContext().
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*/
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void unlockRenderingContext();
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// XXX do we need this?
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nsPresContext getPresContext();
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/**
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* Fill the canvas with the given color.
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*
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* @param color Fill color.
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*/
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void clear(in nscolor color);
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/**
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* Ensure that all renderings on the canvas have been flushed to the
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* Mozilla-native rendering context.
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*/
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void flush();
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/**
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* Set render mode (clipping or normal draw)
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*/
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const unsigned short SVG_RENDER_MODE_NORMAL = 0;
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const unsigned short SVG_RENDER_MODE_CLIP = 1;
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attribute unsigned short renderMode;
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/**
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* Push/Pop clip path.
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*/
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void pushClip();
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void popClip();
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/**
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* Set rectangular clip region.
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*/
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void setClipRect(in nsIDOMSVGMatrix canvasTM, in float x, in float y,
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in float width, in float height);
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/**
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* Push/Pop surface as primary drawing surface.
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*/
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void pushSurface(in nsISVGRendererSurface surface);
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void popSurface();
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/**
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* Surface composition.
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*/
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void compositeSurface(in nsISVGRendererSurface surface,
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in unsigned long x, in unsigned long y,
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in float opacity);
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void compositeSurfaceMatrix(in nsISVGRendererSurface surface,
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in nsIDOMSVGMatrix canvasTM,
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in float opacity);
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};
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/** @} */
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