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98 lines
2.7 KiB
98 lines
2.7 KiB
/*
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* Copyright 2020 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/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 ColrV1GM : public GM {
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public:
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ColrV1GM(SkScalar skewX, SkScalar rotateDeg) : fSkewX(skewX), fRotateDeg(rotateDeg) { }
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protected:
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struct EmojiFont {
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sk_sp<SkTypeface> fTypeface;
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const uint16_t fGlyphs[10] = { 19, 33, 34, 35, 20, 21, 22, 23, 24, 25 };
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const size_t fGlyphs_bytesize =
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SK_ARRAY_COUNT(fGlyphs) * sizeof(uint16_t);
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} fEmojiFont;
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void onOnceBeforeDraw() override {
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fEmojiFont.fTypeface =
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MakeResourceAsTypeface("fonts/colrv1_samples.ttf");
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}
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SkString onShortName() override {
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if (fSkewX != 0 || fRotateDeg != 0) {
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return SkStringPrintf("colrv1_skew_%g_rotate_%g",
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fSkewX,
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fRotateDeg);
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}
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return SkString("colrv1");
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}
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SkISize onISize() override { return SkISize::Make(1400, 600); }
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DrawResult onDraw(SkCanvas* canvas, SkString* errorMsg) override {
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canvas->drawColor(SK_ColorWHITE);
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SkPaint paint;
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canvas->translate(200, 20);
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if (!fEmojiFont.fTypeface) {
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*errorMsg = "Did not recognize COLR v1 font format.";
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return DrawResult::kSkip;
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}
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canvas->rotate(fRotateDeg);
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canvas->skew(fSkewX, 0);
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SkFont font(fEmojiFont.fTypeface);
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SkFontMetrics metrics;
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SkScalar y = 0;
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for (SkScalar textSize : { 12, 18, 30, 120 }) {
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font.setSize(textSize);
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font.getMetrics(&metrics);
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y += -metrics.fAscent;
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canvas->drawSimpleText(fEmojiFont.fGlyphs,
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fEmojiFont.fGlyphs_bytesize,
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SkTextEncoding::kGlyphID,
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10, y, font, paint);
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y += metrics.fDescent + metrics.fLeading;
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}
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return DrawResult::kOk;
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}
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private:
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using INHERITED = GM;
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SkScalar fSkewX;
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SkScalar fRotateDeg;
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};
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DEF_GM(return new ColrV1GM(0.f, 0.f);)
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DEF_GM(return new ColrV1GM(-0.5f, 0.f);)
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DEF_GM(return new ColrV1GM(0.f, 20.f);)
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DEF_GM(return new ColrV1GM(-0.5f, 20.f);)
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} // namespace skiagm
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