48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
/*
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* Copyright 2022 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/SkPaint.h"
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#include "include/effects/SkGradientShader.h"
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DEF_SIMPLE_GM(drawlines_with_local_matrix, canvas, 500, 500) {
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canvas->clipRect({0,0,500,500});
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SkPaint grad;
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grad.setAntiAlias(true);
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grad.setStrokeCap(SkPaint::kSquare_Cap);
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float pos[6] = {0, 2/6.f, 3/6.f, 4/6.f, 5/6.f, 1};
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constexpr SkColor indigo = SkColorSetARGB(0xFF, 0x4b, 0x00, 0x82);
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constexpr SkColor violet = SkColorSetARGB(0xFF, 0xee, 0x82, 0xee);
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SkColor colors[6] = {SK_ColorRED, SK_ColorYELLOW, SK_ColorGREEN, SK_ColorBLUE, indigo, violet};
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grad.setShader(SkGradientShader::MakeRadial({250,250}, 280, colors, pos, 6,SkTileMode::kClamp));
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canvas->drawPaint(grad);
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SkPaint white;
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white.setAntiAlias(true);
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white.setStrokeCap(SkPaint::kSquare_Cap);
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white.setColor(SK_ColorWHITE);
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auto drawLine = [&](float x0, float y0, float x1, float y1, float w) {
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SkPoint p[2] = {{x0, y0}, {x1, y1}};
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white.setStrokeWidth(w);
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canvas->drawPoints(SkCanvas::kLines_PointMode, 2, p, white);
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grad.setStrokeWidth(w - 4);
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canvas->drawPoints(SkCanvas::kLines_PointMode, 2, p, grad);
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};
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drawLine(20, 20, 200, 120, 20);
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drawLine(20, 200, 20, 100, 20);
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drawLine(480, 20, 400, 400, 20);
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drawLine(50, 480, 260, 100, 20);
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drawLine(270, 20, 380, 210, 20);
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drawLine(280, 280, 400, 480, 20);
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drawLine(160, 375, 280, 375, 20);
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drawLine(220, 410, 220, 470, 20);
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drawLine(250, 250, 250, 250, 20);
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}
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