93 lines
2.8 KiB
C++
93 lines
2.8 KiB
C++
/*
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* Copyright 2018 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 "gm/gm.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkColor.h"
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#include "include/core/SkFont.h"
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#include "include/core/SkFontMetrics.h"
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#include "include/core/SkFontStyle.h"
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#include "include/core/SkFontTypes.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkRefCnt.h"
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#include "include/core/SkScalar.h"
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#include "include/core/SkSize.h"
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#include "include/core/SkString.h"
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#include "include/core/SkTypeface.h"
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#include "tools/Resources.h"
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#include "tools/ToolUtils.h"
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#include <string.h>
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#include <initializer_list>
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namespace skiagm {
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class ScaledEmojiRenderingGM : public GM {
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public:
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ScaledEmojiRenderingGM() {}
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protected:
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sk_sp<SkTypeface> typefaces[4];
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void onOnceBeforeDraw() override {
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typefaces[0] = MakeResourceAsTypeface("fonts/colr.ttf");
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typefaces[1] = MakeResourceAsTypeface("fonts/sbix.ttf");
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typefaces[2] = MakeResourceAsTypeface("fonts/cbdt.ttf");
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typefaces[3] = ToolUtils::create_portable_typeface("Emoji", SkFontStyle());
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}
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SkString onShortName() override {
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return SkString("scaledemoji_rendering");
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}
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SkISize onISize() override { return SkISize::Make(1200, 1200); }
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void onDraw(SkCanvas* canvas) override {
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canvas->drawColor(SK_ColorGRAY);
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SkPaint paint;
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paint.setColor(SK_ColorCYAN);
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SkScalar y = 0;
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for (const auto& typeface: typefaces) {
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SkFont font(typeface);
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font.setEdging(SkFont::Edging::kAlias);
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const char* text = ToolUtils::emoji_sample_text();
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SkFontMetrics metrics;
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for (SkScalar textSize : { 70, 150 }) {
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font.setSize(textSize);
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font.getMetrics(&metrics);
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// All typefaces should support subpixel mode
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font.setSubpixel(true);
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y += -metrics.fAscent;
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SkScalar x = 0;
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for (bool fakeBold : { false, true }) {
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font.setEmbolden(fakeBold);
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SkRect bounds;
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font.measureText(text, strlen(text), SkTextEncoding::kUTF8, &bounds, &paint);
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canvas->drawSimpleText(text, strlen(text), SkTextEncoding::kUTF8,
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x + bounds.left(), y, font, paint);
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x += bounds.width() * 1.2;
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}
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y += metrics.fDescent + metrics.fLeading;
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x = 0;
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}
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}
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}
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private:
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using INHERITED = GM;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_GM(return new ScaledEmojiRenderingGM;)
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} // namespace skiagm
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