skia2/experimental/svg/model/SkSVGText.cpp
Tyler Freeman e9663db508 SVG: Added font-size and font-weight attributes to Text node
Change-Id: Ic929cb0119aefae490110648df6e9ea57700c6db
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/281838
Reviewed-by: Ben Wagner <bungeman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
2020-04-22 01:24:03 +00:00

133 lines
3.7 KiB
C++

/*
* Copyright 2019 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/SkSVGText.h"
#include "experimental/svg/model/SkSVGRenderContext.h"
#include "experimental/svg/model/SkSVGValue.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkFontStyle.h"
#include "include/core/SkString.h"
SkSVGText::SkSVGText() : INHERITED(SkSVGTag::kText) {}
void SkSVGText::setX(const SkSVGLength& x) { fX = x; }
void SkSVGText::setY(const SkSVGLength& y) { fY = y; }
void SkSVGText::setFontFamily(const SkSVGStringType& font_family) {
if (fFontFamily != font_family) {
fFontFamily = font_family;
this->loadFont();
}
}
void SkSVGText::loadFont() {
SkFontStyle style;
if (fFontWeight.equals("bold")) {
if (fFontStyle.equals("italic")) {
style = SkFontStyle::BoldItalic();
} else {
style = SkFontStyle::Bold();
}
} else if (fFontStyle.equals("italic")) {
style = SkFontStyle::Italic();
}
fTypeface = SkTypeface::MakeFromName(fFontFamily.c_str(), style);
}
void SkSVGText::setFontSize(const SkSVGLength& size) { fFontSize = size; }
void SkSVGText::setFontStyle(const SkSVGStringType& font_style) {
if (fFontStyle != font_style) {
fFontStyle = font_style;
this->loadFont();
}
}
void SkSVGText::setFontWeight(const SkSVGStringType& font_weight) {
if (fFontWeight != font_weight) {
fFontWeight = font_weight;
this->loadFont();
}
}
void SkSVGText::setText(const SkSVGStringType& text) { fText = text; }
void SkSVGText::setTextAnchor(const SkSVGStringType& text_anchor) {
if (strcmp(text_anchor.c_str(), "start") == 0) {
fTextAlign = SkTextUtils::Align::kLeft_Align;
} else if (strcmp(text_anchor.c_str(), "middle") == 0) {
fTextAlign = SkTextUtils::Align::kCenter_Align;
} else if (strcmp(text_anchor.c_str(), "end") == 0) {
fTextAlign = SkTextUtils::Align::kRight_Align;
}
}
void SkSVGText::onDraw(SkCanvas* canvas, const SkSVGLengthContext& lctx,
const SkPaint& paint, SkPathFillType) const {
SkFont font(fTypeface, fFontSize.value());
SkTextUtils::DrawString(canvas, fText.c_str(), fX.value(), fY.value(),
font, paint, fTextAlign);
}
SkPath SkSVGText::onAsPath(const SkSVGRenderContext& ctx) const {
SkPath path;
return path;
}
void SkSVGText::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::kText:
if (const auto* text = v.as<SkSVGStringValue>()) {
this->setText(*text);
}
break;
case SkSVGAttribute::kTextAnchor:
if (const auto* text_anchor = v.as<SkSVGStringValue>()) {
this->setTextAnchor(*text_anchor);
}
break;
case SkSVGAttribute::kFontFamily:
if (const auto* font_family = v.as<SkSVGStringValue>()) {
this->setFontFamily(*font_family);
}
break;
case SkSVGAttribute::kFontWeight:
if (const auto* font_weight = v.as<SkSVGStringValue>()) {
this->setFontWeight(*font_weight);
}
break;
case SkSVGAttribute::kFontSize:
if (const auto* font_size = v.as<SkSVGLengthValue>()) {
this->setFontSize(*font_size);
}
break;
case SkSVGAttribute::kFontStyle:
if (const auto* font_style = v.as<SkSVGStringValue>()) {
this->setFontStyle(*font_style);
}
break;
default:
this->INHERITED::onSetAttribute(attr, v);
}
}