| /* |
| Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| 2004, 2005, 2007 Rob Buis <buis@kde.org> |
| 2007 Eric Seidel <eric@webkit.org> |
| 2009 Google, Inc. |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public |
| License as published by the Free Software Foundation; either |
| version 2 of the License, or (at your option) any later version. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public License |
| aint with this library; see the file COPYING.LIB. If not, write to |
| the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| |
| #if ENABLE(SVG) |
| #include "RenderSVGViewportContainer.h" |
| |
| #include "GraphicsContext.h" |
| |
| #include "RenderView.h" |
| #include "SVGMarkerElement.h" |
| #include "SVGSVGElement.h" |
| |
| namespace WebCore { |
| |
| RenderSVGViewportContainer::RenderSVGViewportContainer(SVGStyledElement* node) |
| : RenderSVGContainer(node) |
| { |
| } |
| |
| FloatRect RenderSVGViewportContainer::markerBoundaries(const AffineTransform& markerTransformation) const |
| { |
| FloatRect coordinates = repaintRectInLocalCoordinates(); |
| |
| // Map repaint rect into parent coordinate space, in which the marker boundaries have to be evaluated |
| coordinates = localToParentTransform().mapRect(coordinates); |
| |
| return markerTransformation.mapRect(coordinates); |
| } |
| |
| AffineTransform RenderSVGViewportContainer::markerContentTransformation(const AffineTransform& contentTransformation, const FloatPoint& origin, float strokeWidth) const |
| { |
| // The 'origin' coordinate maps to SVGs refX/refY, given in coordinates relative to the viewport established by the marker |
| FloatPoint mappedOrigin = viewportTransform().mapPoint(origin); |
| |
| AffineTransform transformation = contentTransformation; |
| if (strokeWidth != -1) |
| transformation.scaleNonUniform(strokeWidth, strokeWidth); |
| |
| transformation.translate(-mappedOrigin.x(), -mappedOrigin.y()); |
| return transformation; |
| } |
| |
| void RenderSVGViewportContainer::applyViewportClip(PaintInfo& paintInfo) |
| { |
| if (SVGRenderBase::isOverflowHidden(this)) |
| paintInfo.context->clip(m_viewport); |
| } |
| |
| void RenderSVGViewportContainer::calcViewport() |
| { |
| SVGElement* svgelem = static_cast<SVGElement*>(node()); |
| if (svgelem->hasTagName(SVGNames::svgTag)) { |
| SVGSVGElement* svg = static_cast<SVGSVGElement*>(node()); |
| |
| if (!selfNeedsLayout() && !svg->hasRelativeValues()) |
| return; |
| |
| float x = svg->x().value(svg); |
| float y = svg->y().value(svg); |
| float w = svg->width().value(svg); |
| float h = svg->height().value(svg); |
| m_viewport = FloatRect(x, y, w, h); |
| } else if (svgelem->hasTagName(SVGNames::markerTag)) { |
| if (!selfNeedsLayout()) |
| return; |
| |
| SVGMarkerElement* svg = static_cast<SVGMarkerElement*>(node()); |
| float w = svg->markerWidth().value(svg); |
| float h = svg->markerHeight().value(svg); |
| m_viewport = FloatRect(0, 0, w, h); |
| } |
| } |
| |
| AffineTransform RenderSVGViewportContainer::viewportTransform() const |
| { |
| if (node()->hasTagName(SVGNames::svgTag)) { |
| SVGSVGElement* svg = static_cast<SVGSVGElement*>(node()); |
| return svg->viewBoxToViewTransform(m_viewport.width(), m_viewport.height()); |
| } else if (node()->hasTagName(SVGNames::markerTag)) { |
| SVGMarkerElement* marker = static_cast<SVGMarkerElement*>(node()); |
| return marker->viewBoxToViewTransform(m_viewport.width(), m_viewport.height()); |
| } |
| |
| return AffineTransform(); |
| } |
| |
| const AffineTransform& RenderSVGViewportContainer::localToParentTransform() const |
| { |
| AffineTransform viewportTranslation(viewportTransform()); |
| m_localToParentTransform = viewportTranslation.translateRight(m_viewport.x(), m_viewport.y()); |
| return m_localToParentTransform; |
| // If this class were ever given a localTransform(), then the above would read: |
| // return viewportTransform() * localTransform() * viewportTranslation; |
| } |
| |
| bool RenderSVGViewportContainer::pointIsInsideViewportClip(const FloatPoint& pointInParent) |
| { |
| // Respect the viewport clip (which is in parent coords) |
| if (!SVGRenderBase::isOverflowHidden(this)) |
| return true; |
| |
| return m_viewport.contains(pointInParent); |
| } |
| |
| } |
| |
| #endif // ENABLE(SVG) |