86 lines
2.3 KiB
C++
86 lines
2.3 KiB
C++
/*
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* Copyright 2013 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/SkPaint.h"
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#include "include/core/SkRect.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/SkTypes.h"
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namespace skiagm {
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// Draw rects with various stroke widths at 1/8 pixel increments
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class ThinStrokedRectsGM : public GM {
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public:
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ThinStrokedRectsGM() {
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this->setBGColor(0xFF000000);
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}
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protected:
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SkString onShortName() override {
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return SkString("thinstrokedrects");
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}
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SkISize onISize() override {
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return SkISize::Make(240, 320);
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}
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void onDraw(SkCanvas* canvas) override {
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SkPaint paint;
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paint.setColor(SK_ColorWHITE);
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setAntiAlias(true);
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constexpr SkRect rect = { 0, 0, 10, 10 };
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constexpr SkRect rect2 = { 0, 0, 20, 20 };
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constexpr SkScalar gStrokeWidths[] = {
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4, 2, 1, 0.5f, 0.25f, 0.125f, 0
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};
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canvas->translate(5, 5);
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for (int i = 0; i < 8; ++i) {
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canvas->save();
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canvas->translate(i*0.125f, i*30.0f);
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for (size_t j = 0; j < SK_ARRAY_COUNT(gStrokeWidths); ++j) {
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paint.setStrokeWidth(gStrokeWidths[j]);
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canvas->drawRect(rect, paint);
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canvas->translate(15, 0);
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}
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canvas->restore();
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}
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// Draw a second time in red with a scale
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paint.setColor(SK_ColorRED);
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canvas->translate(0, 15);
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for (int i = 0; i < 8; ++i) {
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canvas->save();
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canvas->translate(i*0.125f, i*30.0f);
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canvas->scale(0.5f, 0.5f);
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for (size_t j = 0; j < SK_ARRAY_COUNT(gStrokeWidths); ++j) {
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paint.setStrokeWidth(2.0f * gStrokeWidths[j]);
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canvas->drawRect(rect2, paint);
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canvas->translate(30, 0);
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}
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canvas->restore();
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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 ThinStrokedRectsGM;)
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} // namespace skiagm
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