/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#include "mozilla/dom/SVGPathSegment.h"
#include "mozilla/dom/SVGPathElementBinding.h"
#include "SVGPathSegUtils.h"
namespace mozilla::dom {
JSObject* SVGPathSegment::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return SVGPathSegment_Binding::Wrap(aCx,
this, aGivenProto);
}
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(SVGPathSegment, mSVGPathElement)
//----------------------------------------------------------------------
// Implementation
SVGPathSegment::SVGPathSegment(SVGPathElement* aSVGPathElement,
const StylePathCommand& aCommand)
: mSVGPathElement(aSVGPathElement) {
switch (aCommand.tag) {
case StylePathCommand::Tag::Close:
mCommand.AssignLiteral(
"Z");
break;
case StylePathCommand::Tag::Move:
mCommand.AssignLiteral(aCommand.move.by_to == StyleByTo::To ?
"M" :
"m");
mValues.AppendElement(aCommand.move.point.x);
mValues.AppendElement(aCommand.move.point.y);
break;
case StylePathCommand::Tag::Line:
mCommand.AssignLiteral(aCommand.line.by_to == StyleByTo::To ?
"L" :
"l");
mValues.AppendElement(aCommand.line.point.x);
mValues.AppendElement(aCommand.line.point.y);
break;
case StylePathCommand::Tag::CubicCurve:
mCommand.AssignLiteral(aCommand.cubic_curve.by_to == StyleByTo::To ?
"C"
:
"c");
mValues.AppendElement(aCommand.cubic_curve.control1.x);
mValues.AppendElement(aCommand.cubic_curve.control1.y);
mValues.AppendElement(aCommand.cubic_curve.control2.x);
mValues.AppendElement(aCommand.cubic_curve.control2.y);
mValues.AppendElement(aCommand.cubic_curve.point.x);
mValues.AppendElement(aCommand.cubic_curve.point.y);
break;
case StylePathCommand::Tag::QuadCurve:
mCommand.AssignLiteral(aCommand.quad_curve.by_to == StyleByTo::To ?
"Q"
:
"q");
mValues.AppendElement(aCommand.quad_curve.control1.x);
mValues.AppendElement(aCommand.quad_curve.control1.y);
mValues.AppendElement(aCommand.quad_curve.point.x);
mValues.AppendElement(aCommand.quad_curve.point.y);
break;
case StylePathCommand::Tag::Arc:
mCommand.AssignLiteral(aCommand.arc.by_to == StyleByTo::To ?
"A" :
"a");
mValues.AppendElement(aCommand.arc.radii.x);
mValues.AppendElement(aCommand.arc.radii.y);
mValues.AppendElement(aCommand.arc.rotate);
mValues.AppendElement(aCommand.arc.arc_size == StyleArcSize::Large);
mValues.AppendElement(aCommand.arc.arc_sweep == StyleArcSweep::Cw);
mValues.AppendElement(aCommand.arc.point.x);
mValues.AppendElement(aCommand.arc.point.y);
break;
case StylePathCommand::Tag::HLine:
mCommand.AssignLiteral(aCommand.h_line.by_to == StyleByTo::To ?
"H"
:
"h");
mValues.AppendElement(aCommand.h_line.x);
break;
case StylePathCommand::Tag::VLine:
mCommand.AssignLiteral(aCommand.v_line.by_to == StyleByTo::To ?
"V"
:
"v");
mValues.AppendElement(aCommand.v_line.y);
break;
case StylePathCommand::Tag::SmoothCubic:
mCommand.AssignLiteral(
aCommand.smooth_cubic.by_to == StyleByTo::To ?
"S" :
"s");
mValues.AppendElement(aCommand.smooth_cubic.control2.x);
mValues.AppendElement(aCommand.smooth_cubic.control2.y);
mValues.AppendElement(aCommand.smooth_cubic.point.x);
mValues.AppendElement(aCommand.smooth_cubic.point.y);
break;
case StylePathCommand::Tag::SmoothQuad:
mCommand.AssignLiteral(aCommand.smooth_quad.by_to == StyleByTo::To ?
"T"
:
"t");
mValues.AppendElement(aCommand.smooth_quad.point.x);
mValues.AppendElement(aCommand.smooth_quad.point.y);
break;
}
}
static int32_t ArgCountForType(
char aType) {
switch (ToLowerCase(aType)) {
case 'z':
return 0;
case 'm':
case 'l':
return 2;
case 'c':
return 6;
case 'q':
return 4;
case 'a':
return 7;
case 'h':
case 'v':
return 1;
case 's':
return 4;
case 't':
return 2;
}
return -1;
}
bool SVGPathSegment::IsMove()
const {
return mCommand.EqualsLiteral(
"M") || mCommand.EqualsLiteral(
"m");
}
bool SVGPathSegment::IsArc()
const {
return mCommand.EqualsLiteral(
"A") || mCommand.EqualsLiteral(
"a");
}
bool IsValidFlag(
float aFlag) {
return aFlag == 0.0f || aFlag == 1.0f; }
bool SVGPathSegment::IsValid()
const {
if (mCommand.Length() != 1) {
return false;
}
auto expectedArgCount = ArgCountForType(mCommand.First());
if (expectedArgCount < 0 || mValues.Length() != uint32_t(expectedArgCount)) {
return false;
}
if (IsArc() && !(IsValidFlag(mValues[3]) && IsValidFlag(mValues[4]))) {
return false;
}
return true;
}
StylePathCommand SVGPathSegment::ToStylePathCommand()
const {
MOZ_ASSERT(IsValid(),
"Trying to convert invalid SVGPathSegment");
switch (mCommand.First()) {
case 'M':
return StylePathCommand::Move(StyleByTo::To, {mValues[0], mValues[1]});
case 'm':
return StylePathCommand::Move(StyleByTo::By, {mValues[0], mValues[1]});
case 'L':
return StylePathCommand::Line(StyleByTo::To, {mValues[0], mValues[1]});
case 'l':
return StylePathCommand::Line(StyleByTo::By, {mValues[0], mValues[1]});
case 'C':
return StylePathCommand::CubicCurve(
StyleByTo::To, {mValues[4], mValues[5]}, {mValues[0], mValues[1]},
{mValues[2], mValues[3]});
case 'c':
return StylePathCommand::CubicCurve(
StyleByTo::By, {mValues[4], mValues[5]}, {mValues[0], mValues[1]},
{mValues[2], mValues[3]});
case 'Q':
return StylePathCommand::QuadCurve(
StyleByTo::To, {mValues[2], mValues[3]}, {mValues[0], mValues[1]});
case 'q':
return StylePathCommand::QuadCurve(
StyleByTo::By, {mValues[2], mValues[3]}, {mValues[0], mValues[1]});
case 'A':
return StylePathCommand::Arc(
StyleByTo::To, {mValues[5], mValues[6]}, {mValues[0], mValues[1]},
mValues[3] ? StyleArcSweep::Cw : StyleArcSweep::Ccw,
mValues[4] ? StyleArcSize::Large : StyleArcSize::Small, mValues[2]);
case 'a':
return StylePathCommand::Arc(
StyleByTo::By, {mValues[5], mValues[6]}, {mValues[0], mValues[1]},
mValues[3] ? StyleArcSweep::Cw : StyleArcSweep::Ccw,
mValues[4] ? StyleArcSize::Large : StyleArcSize::Small, mValues[2]);
case 'H':
return StylePathCommand::HLine(StyleByTo::To, mValues[0]);
case 'h':
return StylePathCommand::HLine(StyleByTo::By, mValues[0]);
case 'V':
return StylePathCommand::VLine(StyleByTo::To, mValues[0]);
case 'v':
return StylePathCommand::VLine(StyleByTo::By, mValues[0]);
case 'S':
return StylePathCommand::SmoothCubic(
StyleByTo::To, {mValues[2], mValues[3]}, {mValues[0], mValues[1]});
case 's':
return StylePathCommand::SmoothCubic(
StyleByTo::By, {mValues[2], mValues[3]}, {mValues[0], mValues[1]});
case 'T':
return StylePathCommand::SmoothQuad(StyleByTo::To,
{mValues[0], mValues[1]});
case 't':
return StylePathCommand::SmoothQuad(StyleByTo::By,
{mValues[0], mValues[1]});
}
return StylePathCommand::Close();
}
void SVGPathSegment::GetType(DOMString& aType) {
aType.SetKnownLiveString(mCommand);
}
void SVGPathSegment::SetType(
const nsAString& aType) { mCommand = aType; }
void SVGPathSegment::GetValues(nsTArray<
float>& aValues) {
aValues = mValues.Clone();
}
void SVGPathSegment::SetValues(
const nsTArray<
float>& aValues) {
mValues = aValues.Clone();
}
}
// namespace mozilla::dom
