81 lines
2.0 KiB
C++
81 lines
2.0 KiB
C++
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/*
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* Copyright 2012 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 "SkCanvas.h"
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#include "SkPaint.h"
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#include "SkDashPathEffect.h"
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static void drawline(SkCanvas* canvas, int on, int off, const SkPaint& paint) {
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SkPaint p(paint);
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const SkScalar intervals[] = {
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SkIntToScalar(on),
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SkIntToScalar(off),
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};
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p.setPathEffect(new SkDashPathEffect(intervals, 2, 0))->unref();
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canvas->drawLine(0, 0, SkIntToScalar(600), 0, p);
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}
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namespace skiagm {
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class DashingGM : public GM {
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public:
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DashingGM() {}
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protected:
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SkString onShortName() {
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return SkString("dashing");
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}
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SkISize onISize() { return make_isize(640, 300); }
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virtual void onDraw(SkCanvas* canvas) {
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static const struct {
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int fOnInterval;
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int fOffInterval;
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} gData[] = {
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{ 1, 1 },
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{ 4, 1 },
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};
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SkPaint paint;
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paint.setStyle(SkPaint::kStroke_Style);
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canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
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canvas->translate(0, SK_ScalarHalf);
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for (int width = 0; width <= 2; ++width) {
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for (size_t data = 0; data < SK_ARRAY_COUNT(gData); ++data) {
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for (int aa = 0; aa <= 1; ++aa) {
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int w = width * width * width;
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paint.setAntiAlias(SkToBool(aa));
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paint.setStrokeWidth(SkIntToScalar(w));
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int scale = w ? w : 1;
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drawline(canvas, gData[data].fOnInterval * scale,
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gData[data].fOffInterval * scale,
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paint);
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canvas->translate(0, SkIntToScalar(20));
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}
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}
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}
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}
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private:
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static GM* gF(void*) { return new DashingGM; }
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static GMRegistry gR(gF);
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}
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