13cba49982
also, re-enable warnings. motivation: used by me for PDF testing. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2201153002 Review-Url: https://codereview.chromium.org/2201153002
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkShaper.h"
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#include "SkStream.h"
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#include "SkTextBlob.h"
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#include "SkTypeface.h"
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struct SkShaper::Impl {
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sk_sp<SkTypeface> fTypeface;
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};
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SkShaper::SkShaper(sk_sp<SkTypeface> tf) : fImpl(new Impl) {
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fImpl->fTypeface = tf ? std::move(tf) : SkTypeface::MakeDefault();
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}
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SkShaper::~SkShaper() {}
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bool SkShaper::good() const { return true; }
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SkScalar SkShaper::shape(SkTextBlobBuilder* builder,
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const SkPaint& srcPaint,
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const char* utf8text,
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size_t textBytes,
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SkPoint point) const {
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SkPaint paint(srcPaint);
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paint.setTypeface(fImpl->fTypeface);
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paint.setTextEncoding(SkPaint::kUTF8_TextEncoding);
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int glyphCount = paint.countText(utf8text, textBytes);
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if (glyphCount <= 0) {
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return 0;
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}
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SkRect bounds;
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(void)paint.measureText(utf8text, textBytes, &bounds);
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paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
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const SkTextBlobBuilder::RunBuffer& runBuffer = builder->allocRunPosH(
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paint, glyphCount, point.y(), &bounds);
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paint.setTextEncoding(SkPaint::kUTF8_TextEncoding);
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(void)paint.textToGlyphs(utf8text, textBytes, runBuffer.glyphs);
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(void)paint.getTextWidths(utf8text, textBytes, runBuffer.pos);
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SkScalar x = point.x();
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for (int i = 0; i < glyphCount; ++i) {
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SkScalar w = runBuffer.pos[i];
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runBuffer.pos[i] = x;
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x += w;
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}
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return (SkScalar)x;
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}
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