f005c25684
Lock to SVG 1.1, where they were originally pointing. Change-Id: I9c770983137375f1daa84a2d0927b5e44f93e7b1 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/282264 Commit-Queue: Florin Malita <fmalita@chromium.org> Commit-Queue: Tyler Denniston <tdenniston@google.com> Auto-Submit: Florin Malita <fmalita@chromium.org> Reviewed-by: Tyler Denniston <tdenniston@google.com>
110 lines
3.1 KiB
C++
110 lines
3.1 KiB
C++
/*
|
|
* Copyright 2016 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include "experimental/svg/model/SkSVGRenderContext.h"
|
|
#include "experimental/svg/model/SkSVGSVG.h"
|
|
#include "experimental/svg/model/SkSVGValue.h"
|
|
#include "include/core/SkCanvas.h"
|
|
|
|
SkSVGSVG::SkSVGSVG() : INHERITED(SkSVGTag::kSvg) { }
|
|
|
|
bool SkSVGSVG::onPrepareToRender(SkSVGRenderContext* ctx) const {
|
|
auto viewPortRect = ctx->lengthContext().resolveRect(fX, fY, fWidth, fHeight);
|
|
auto contentMatrix = SkMatrix::MakeTrans(viewPortRect.x(), viewPortRect.y());
|
|
auto viewPort = SkSize::Make(viewPortRect.width(), viewPortRect.height());
|
|
|
|
if (fViewBox.isValid()) {
|
|
const SkRect& viewBox = *fViewBox.get();
|
|
|
|
// An empty viewbox disables rendering.
|
|
if (viewBox.isEmpty()) {
|
|
return false;
|
|
}
|
|
|
|
// A viewBox overrides the intrinsic viewport.
|
|
viewPort = SkSize::Make(viewBox.width(), viewBox.height());
|
|
|
|
contentMatrix.preConcat(
|
|
SkMatrix::MakeRectToRect(viewBox, viewPortRect, SkMatrix::kFill_ScaleToFit));
|
|
}
|
|
|
|
if (!contentMatrix.isIdentity()) {
|
|
ctx->saveOnce();
|
|
ctx->canvas()->concat(contentMatrix);
|
|
}
|
|
|
|
if (viewPort != ctx->lengthContext().viewPort()) {
|
|
ctx->writableLengthContext()->setViewPort(viewPort);
|
|
}
|
|
|
|
return this->INHERITED::onPrepareToRender(ctx);
|
|
}
|
|
|
|
void SkSVGSVG::setX(const SkSVGLength& x) {
|
|
fX = x;
|
|
}
|
|
|
|
void SkSVGSVG::setY(const SkSVGLength& y) {
|
|
fY = y;
|
|
}
|
|
|
|
void SkSVGSVG::setWidth(const SkSVGLength& w) {
|
|
fWidth = w;
|
|
}
|
|
|
|
void SkSVGSVG::setHeight(const SkSVGLength& h) {
|
|
fHeight = h;
|
|
}
|
|
|
|
void SkSVGSVG::setViewBox(const SkSVGViewBoxType& vb) {
|
|
fViewBox.set(vb);
|
|
}
|
|
|
|
void SkSVGSVG::onSetAttribute(SkSVGAttribute attr, const SkSVGValue& v) {
|
|
switch (attr) {
|
|
case SkSVGAttribute::kX:
|
|
if (const auto* x = v.as<SkSVGLengthValue>()) {
|
|
this->setX(*x);
|
|
}
|
|
break;
|
|
case SkSVGAttribute::kY:
|
|
if (const auto* y = v.as<SkSVGLengthValue>()) {
|
|
this->setY(*y);
|
|
}
|
|
break;
|
|
case SkSVGAttribute::kWidth:
|
|
if (const auto* w = v.as<SkSVGLengthValue>()) {
|
|
this->setWidth(*w);
|
|
}
|
|
break;
|
|
case SkSVGAttribute::kHeight:
|
|
if (const auto* h = v.as<SkSVGLengthValue>()) {
|
|
this->setHeight(*h);
|
|
}
|
|
break;
|
|
case SkSVGAttribute::kViewBox:
|
|
if (const auto* vb = v.as<SkSVGViewBoxValue>()) {
|
|
this->setViewBox(*vb);
|
|
}
|
|
break;
|
|
default:
|
|
this->INHERITED::onSetAttribute(attr, v);
|
|
}
|
|
}
|
|
|
|
// https://www.w3.org/TR/SVG11/coords.html#IntrinsicSizing
|
|
SkSize SkSVGSVG::intrinsicSize(const SkSVGLengthContext& lctx) const {
|
|
// Percentage values do not provide an intrinsic size.
|
|
if (fWidth.unit() == SkSVGLength::Unit::kPercentage ||
|
|
fHeight.unit() == SkSVGLength::Unit::kPercentage) {
|
|
return SkSize::Make(0, 0);
|
|
}
|
|
|
|
return SkSize::Make(lctx.resolve(fWidth, SkSVGLengthContext::LengthType::kHorizontal),
|
|
lctx.resolve(fHeight, SkSVGLengthContext::LengthType::kVertical));
|
|
}
|