gecko-dev/layout/svg/nsSVGTextPathFrame.cpp
Alexandre Dumont 9bb8822425 Bug 596753: Flatten layout/svg/base/src into layout/svg. r=dholbert
--HG--
rename : layout/svg/base/src/Makefile.in => layout/svg/Makefile.in
rename : layout/svg/base/src/SVGFEContainerFrame.cpp => layout/svg/SVGFEContainerFrame.cpp
rename : layout/svg/base/src/SVGFEImageFrame.cpp => layout/svg/SVGFEImageFrame.cpp
rename : layout/svg/base/src/SVGFELeafFrame.cpp => layout/svg/SVGFELeafFrame.cpp
rename : layout/svg/base/src/SVGFEUnstyledLeafFrame.cpp => layout/svg/SVGFEUnstyledLeafFrame.cpp
rename : layout/svg/base/src/SVGViewFrame.cpp => layout/svg/SVGViewFrame.cpp
rename : layout/svg/base/src/nsISVGChildFrame.h => layout/svg/nsISVGChildFrame.h
rename : layout/svg/base/src/nsISVGGlyphFragmentNode.h => layout/svg/nsISVGGlyphFragmentNode.h
rename : layout/svg/base/src/nsISVGSVGFrame.h => layout/svg/nsISVGSVGFrame.h
rename : layout/svg/base/src/nsSVGAFrame.cpp => layout/svg/nsSVGAFrame.cpp
rename : layout/svg/base/src/nsSVGClipPathFrame.cpp => layout/svg/nsSVGClipPathFrame.cpp
rename : layout/svg/base/src/nsSVGClipPathFrame.h => layout/svg/nsSVGClipPathFrame.h
rename : layout/svg/base/src/nsSVGContainerFrame.cpp => layout/svg/nsSVGContainerFrame.cpp
rename : layout/svg/base/src/nsSVGContainerFrame.h => layout/svg/nsSVGContainerFrame.h
rename : layout/svg/base/src/nsSVGEffects.cpp => layout/svg/nsSVGEffects.cpp
rename : layout/svg/base/src/nsSVGEffects.h => layout/svg/nsSVGEffects.h
rename : layout/svg/base/src/nsSVGFilterFrame.cpp => layout/svg/nsSVGFilterFrame.cpp
rename : layout/svg/base/src/nsSVGFilterFrame.h => layout/svg/nsSVGFilterFrame.h
rename : layout/svg/base/src/nsSVGFilterInstance.cpp => layout/svg/nsSVGFilterInstance.cpp
rename : layout/svg/base/src/nsSVGFilterInstance.h => layout/svg/nsSVGFilterInstance.h
rename : layout/svg/base/src/nsSVGFilterPaintCallback.h => layout/svg/nsSVGFilterPaintCallback.h
rename : layout/svg/base/src/nsSVGForeignObjectFrame.cpp => layout/svg/nsSVGForeignObjectFrame.cpp
rename : layout/svg/base/src/nsSVGForeignObjectFrame.h => layout/svg/nsSVGForeignObjectFrame.h
rename : layout/svg/base/src/nsSVGGFrame.cpp => layout/svg/nsSVGGFrame.cpp
rename : layout/svg/base/src/nsSVGGFrame.h => layout/svg/nsSVGGFrame.h
rename : layout/svg/base/src/nsSVGGenericContainerFrame.cpp => layout/svg/nsSVGGenericContainerFrame.cpp
rename : layout/svg/base/src/nsSVGGenericContainerFrame.h => layout/svg/nsSVGGenericContainerFrame.h
rename : layout/svg/base/src/nsSVGGeometryFrame.cpp => layout/svg/nsSVGGeometryFrame.cpp
rename : layout/svg/base/src/nsSVGGeometryFrame.h => layout/svg/nsSVGGeometryFrame.h
rename : layout/svg/base/src/nsSVGGlyphFrame.cpp => layout/svg/nsSVGGlyphFrame.cpp
rename : layout/svg/base/src/nsSVGGlyphFrame.h => layout/svg/nsSVGGlyphFrame.h
rename : layout/svg/base/src/nsSVGGradientFrame.cpp => layout/svg/nsSVGGradientFrame.cpp
rename : layout/svg/base/src/nsSVGGradientFrame.h => layout/svg/nsSVGGradientFrame.h
rename : layout/svg/base/src/nsSVGImageFrame.cpp => layout/svg/nsSVGImageFrame.cpp
rename : layout/svg/base/src/nsSVGInnerSVGFrame.cpp => layout/svg/nsSVGInnerSVGFrame.cpp
rename : layout/svg/base/src/nsSVGInnerSVGFrame.h => layout/svg/nsSVGInnerSVGFrame.h
rename : layout/svg/base/src/nsSVGIntegrationUtils.cpp => layout/svg/nsSVGIntegrationUtils.cpp
rename : layout/svg/base/src/nsSVGIntegrationUtils.h => layout/svg/nsSVGIntegrationUtils.h
rename : layout/svg/base/src/nsSVGMarkerFrame.cpp => layout/svg/nsSVGMarkerFrame.cpp
rename : layout/svg/base/src/nsSVGMarkerFrame.h => layout/svg/nsSVGMarkerFrame.h
rename : layout/svg/base/src/nsSVGMaskFrame.cpp => layout/svg/nsSVGMaskFrame.cpp
rename : layout/svg/base/src/nsSVGMaskFrame.h => layout/svg/nsSVGMaskFrame.h
rename : layout/svg/base/src/nsSVGOuterSVGFrame.cpp => layout/svg/nsSVGOuterSVGFrame.cpp
rename : layout/svg/base/src/nsSVGOuterSVGFrame.h => layout/svg/nsSVGOuterSVGFrame.h
rename : layout/svg/base/src/nsSVGPaintServerFrame.cpp => layout/svg/nsSVGPaintServerFrame.cpp
rename : layout/svg/base/src/nsSVGPaintServerFrame.h => layout/svg/nsSVGPaintServerFrame.h
rename : layout/svg/base/src/nsSVGPathGeometryFrame.cpp => layout/svg/nsSVGPathGeometryFrame.cpp
rename : layout/svg/base/src/nsSVGPathGeometryFrame.h => layout/svg/nsSVGPathGeometryFrame.h
rename : layout/svg/base/src/nsSVGPatternFrame.cpp => layout/svg/nsSVGPatternFrame.cpp
rename : layout/svg/base/src/nsSVGPatternFrame.h => layout/svg/nsSVGPatternFrame.h
rename : layout/svg/base/src/nsSVGStopFrame.cpp => layout/svg/nsSVGStopFrame.cpp
rename : layout/svg/base/src/nsSVGSwitchFrame.cpp => layout/svg/nsSVGSwitchFrame.cpp
rename : layout/svg/base/src/nsSVGTSpanFrame.cpp => layout/svg/nsSVGTSpanFrame.cpp
rename : layout/svg/base/src/nsSVGTSpanFrame.h => layout/svg/nsSVGTSpanFrame.h
rename : layout/svg/base/src/nsSVGTextContainerFrame.cpp => layout/svg/nsSVGTextContainerFrame.cpp
rename : layout/svg/base/src/nsSVGTextContainerFrame.h => layout/svg/nsSVGTextContainerFrame.h
rename : layout/svg/base/src/nsSVGTextFrame.cpp => layout/svg/nsSVGTextFrame.cpp
rename : layout/svg/base/src/nsSVGTextFrame.h => layout/svg/nsSVGTextFrame.h
rename : layout/svg/base/src/nsSVGTextPathFrame.cpp => layout/svg/nsSVGTextPathFrame.cpp
rename : layout/svg/base/src/nsSVGTextPathFrame.h => layout/svg/nsSVGTextPathFrame.h
rename : layout/svg/base/src/nsSVGUseFrame.cpp => layout/svg/nsSVGUseFrame.cpp
rename : layout/svg/base/src/nsSVGUtils.cpp => layout/svg/nsSVGUtils.cpp
rename : layout/svg/base/src/nsSVGUtils.h => layout/svg/nsSVGUtils.h
rename : layout/svg/base/src/resources/content/svgBindings.xml => layout/svg/resources/content/svgBindings.xml
rename : layout/svg/base/src/svg.css => layout/svg/svg.css
2012-09-24 23:01:21 +02:00

172 lines
4.9 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// Main header first:
#include "nsSVGTextPathFrame.h"
// Keep others in (case-insensitive) order:
#include "nsContentUtils.h"
#include "nsIDOMSVGTextPathElement.h"
#include "nsSVGEffects.h"
#include "nsSVGLength2.h"
#include "nsSVGPathElement.h"
#include "nsSVGTextPathElement.h"
#include "SVGLengthList.h"
using namespace mozilla;
//----------------------------------------------------------------------
// Implementation
nsIFrame*
NS_NewSVGTextPathFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
return new (aPresShell) nsSVGTextPathFrame(aContext);
}
NS_IMPL_FRAMEARENA_HELPERS(nsSVGTextPathFrame)
#ifdef DEBUG
NS_IMETHODIMP
nsSVGTextPathFrame::Init(nsIContent* aContent,
nsIFrame* aParent,
nsIFrame* aPrevInFlow)
{
NS_ASSERTION(aParent, "null parent");
nsIFrame* ancestorFrame = nsSVGUtils::GetFirstNonAAncestorFrame(aParent);
NS_ASSERTION(ancestorFrame, "Must have ancestor");
NS_ASSERTION(ancestorFrame->GetType() == nsGkAtoms::svgTextFrame,
"trying to construct an SVGTextPathFrame for an invalid "
"container");
nsCOMPtr<nsIDOMSVGTextPathElement> textPath = do_QueryInterface(aContent);
NS_ASSERTION(textPath, "Content is not an SVG textPath");
return nsSVGTextPathFrameBase::Init(aContent, aParent, aPrevInFlow);
}
#endif /* DEBUG */
nsIAtom *
nsSVGTextPathFrame::GetType() const
{
return nsGkAtoms::svgTextPathFrame;
}
void
nsSVGTextPathFrame::GetXY(SVGUserUnitList *aX, SVGUserUnitList *aY)
{
// 'x' and 'y' don't apply to 'textPath'
aX->Clear();
aY->Clear();
}
void
nsSVGTextPathFrame::GetDxDy(SVGUserUnitList *aDx, SVGUserUnitList *aDy)
{
// 'dx' and 'dy' don't apply to 'textPath'
aDx->Clear();
aDy->Clear();
}
const SVGNumberList*
nsSVGTextPathFrame::GetRotate()
{
return nullptr;
}
//----------------------------------------------------------------------
// nsSVGTextPathFrame methods:
nsIFrame *
nsSVGTextPathFrame::GetPathFrame()
{
nsSVGTextPathProperty *property = static_cast<nsSVGTextPathProperty*>
(Properties().Get(nsSVGEffects::HrefProperty()));
if (!property) {
nsSVGTextPathElement *tp = static_cast<nsSVGTextPathElement*>(mContent);
nsAutoString href;
tp->mStringAttributes[nsSVGTextPathElement::HREF].GetAnimValue(href, tp);
if (href.IsEmpty()) {
return nullptr; // no URL
}
nsCOMPtr<nsIURI> targetURI;
nsCOMPtr<nsIURI> base = mContent->GetBaseURI();
nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(targetURI), href,
mContent->GetCurrentDoc(), base);
property =
nsSVGEffects::GetTextPathProperty(targetURI, this, nsSVGEffects::HrefProperty());
if (!property)
return nullptr;
}
return property->GetReferencedFrame(nsGkAtoms::svgPathGeometryFrame, nullptr);
}
already_AddRefed<gfxFlattenedPath>
nsSVGTextPathFrame::GetFlattenedPath()
{
nsIFrame *path = GetPathFrame();
if (path) {
nsSVGPathGeometryElement *element =
static_cast<nsSVGPathGeometryElement*>(path->GetContent());
return element->GetFlattenedPath(element->PrependLocalTransformsTo(gfxMatrix()));
}
return nullptr;
}
gfxFloat
nsSVGTextPathFrame::GetStartOffset()
{
nsSVGTextPathElement *tp = static_cast<nsSVGTextPathElement*>(mContent);
nsSVGLength2 *length = &tp->mLengthAttributes[nsSVGTextPathElement::STARTOFFSET];
if (length->IsPercentage()) {
nsRefPtr<gfxFlattenedPath> data = GetFlattenedPath();
return data ? (length->GetAnimValInSpecifiedUnits() * data->GetLength() / 100.0) : 0.0;
}
return length->GetAnimValue(tp) * GetOffsetScale();
}
gfxFloat
nsSVGTextPathFrame::GetOffsetScale()
{
nsIFrame *pathFrame = GetPathFrame();
if (!pathFrame)
return 1.0;
return static_cast<nsSVGPathElement*>(pathFrame->GetContent())->
GetPathLengthScale(nsSVGPathElement::eForTextPath);
}
//----------------------------------------------------------------------
// nsIFrame methods
NS_IMETHODIMP
nsSVGTextPathFrame::AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType)
{
if (aNameSpaceID == kNameSpaceID_None &&
aAttribute == nsGkAtoms::startOffset) {
nsSVGUtils::InvalidateAndScheduleReflowSVG(this);
NotifyGlyphMetricsChange();
} else if (aNameSpaceID == kNameSpaceID_XLink &&
aAttribute == nsGkAtoms::href) {
nsSVGUtils::InvalidateAndScheduleReflowSVG(this);
// Blow away our reference, if any
Properties().Delete(nsSVGEffects::HrefProperty());
NotifyGlyphMetricsChange();
}
return NS_OK;
}