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