72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
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/*
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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.h"
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#include "sk_tool_utils.h"
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#include "Resources.h"
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#include "SkCanvas.h"
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#include "SkStream.h"
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#include "SkTypeface.h"
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namespace skiagm {
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class ScaledEmojiGM : public GM {
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public:
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ScaledEmojiGM() { }
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protected:
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struct EmojiFont {
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sk_sp<SkTypeface> fTypeface;
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const char* fText;
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} fEmojiFont;
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void onOnceBeforeDraw() override {
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fEmojiFont.fTypeface = sk_tool_utils::emoji_typeface();
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fEmojiFont.fText = sk_tool_utils::emoji_sample_text();
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}
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SkString onShortName() override {
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SkString name("scaledemoji");
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name.append(sk_tool_utils::platform_font_manager());
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return name;
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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_tool_utils::color_to_565(SK_ColorGRAY));
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SkPaint paint;
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paint.setTypeface(fEmojiFont.fTypeface);
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const char* text = fEmojiFont.fText;
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// draw text at different point sizes
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// Testing GPU bitmap path, SDF path with no scaling,
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// SDF path with scaling, path rendering with scaling
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SkPaint::FontMetrics metrics;
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SkScalar y = 0;
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for (SkScalar textSize : { 70, 180, 270, 340 }) {
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paint.setTextSize(textSize);
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paint.getFontMetrics(&metrics);
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y += -metrics.fAscent;
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canvas->drawString(text, 10, y, paint);
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y += metrics.fDescent + metrics.fLeading;
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}
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}
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_GM(return new ScaledEmojiGM;)
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}
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