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123 lines
3.9 KiB
C++
123 lines
3.9 KiB
C++
/* -*- Mode: C++; 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) 2001
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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 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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#include "nsIDOMSVGTransformable.h"
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#include "nsSVGGFrame.h"
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#include "nsIFrame.h"
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#include "nsSVGMatrix.h"
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#include "nsGkAtoms.h"
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#include "nsSVGUtils.h"
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#include "nsSVGGraphicElement.h"
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//----------------------------------------------------------------------
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// Implementation
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nsIFrame*
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NS_NewSVGGFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsSVGGFrame(aContext);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsSVGGFrame)
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#ifdef DEBUG
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NS_IMETHODIMP
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nsSVGGFrame::Init(nsIContent* aContent,
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nsIFrame* aParent,
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nsIFrame* aPrevInFlow)
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{
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nsCOMPtr<nsIDOMSVGTransformable> transformable = do_QueryInterface(aContent);
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NS_ASSERTION(transformable,
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"The element doesn't support nsIDOMSVGTransformable\n");
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return nsSVGGFrameBase::Init(aContent, aParent, aPrevInFlow);
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}
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#endif /* DEBUG */
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nsIAtom *
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nsSVGGFrame::GetType() const
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{
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return nsGkAtoms::svgGFrame;
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}
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//----------------------------------------------------------------------
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// nsISVGChildFrame methods
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void
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nsSVGGFrame::NotifySVGChanged(PRUint32 aFlags)
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{
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if (aFlags & TRANSFORM_CHANGED) {
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// make sure our cached transform matrix gets (lazily) updated
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mCanvasTM = nsnull;
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}
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nsSVGGFrameBase::NotifySVGChanged(aFlags);
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}
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gfxMatrix
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nsSVGGFrame::GetCanvasTM()
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{
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if (!mCanvasTM) {
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NS_ASSERTION(mParent, "null parent");
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nsSVGContainerFrame *parent = static_cast<nsSVGContainerFrame*>(mParent);
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nsSVGGraphicElement *content = static_cast<nsSVGGraphicElement*>(mContent);
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gfxMatrix tm = content->PrependLocalTransformTo(parent->GetCanvasTM());
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mCanvasTM = NS_NewSVGMatrix(tm);
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}
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return nsSVGUtils::ConvertSVGMatrixToThebes(mCanvasTM);
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}
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NS_IMETHODIMP
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nsSVGGFrame::AttributeChanged(PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aModType)
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{
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if (aNameSpaceID == kNameSpaceID_None &&
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aAttribute == nsGkAtoms::transform) {
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// make sure our cached transform matrix gets (lazily) updated
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mCanvasTM = nsnull;
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nsSVGUtils::NotifyChildrenOfSVGChange(this, TRANSFORM_CHANGED);
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}
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return NS_OK;
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}
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