ea60b951d7
Change-Id: Ieac05047826b1fb80950d65573d38494a1a5c5e7 Reviewed-on: https://skia-review.googlesource.com/148383 Commit-Queue: Hal Canary <halcanary@google.com> Commit-Queue: Ben Wagner <bungeman@google.com> Auto-Submit: Hal Canary <halcanary@google.com> Reviewed-by: Ben Wagner <bungeman@google.com>
142 lines
4.8 KiB
C++
142 lines
4.8 KiB
C++
/*
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* Copyright 2011 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 "Sample.h"
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#include "SkCanvas.h"
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#include "SkGradientShader.h"
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#include "SkGraphics.h"
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#include "SkPath.h"
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#include "SkRegion.h"
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#include "SkShader.h"
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#include "SkUTF.h"
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#include "SkColorPriv.h"
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#include "SkColorFilter.h"
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#include "SkParsePath.h"
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#include "SkTime.h"
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#include "SkTypeface.h"
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#include "SkGeometry.h"
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class ConcavePathView : public Sample {
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public:
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ConcavePathView() {}
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protected:
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virtual bool onQuery(Sample::Event* evt) {
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if (Sample::TitleQ(*evt)) {
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Sample::TitleR(evt, "ConcavePaths");
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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virtual void onDrawContent(SkCanvas* canvas) {
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setStyle(SkPaint::kFill_Style);
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// Concave test
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if (1) {
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SkPath path;
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canvas->translate(0, 0);
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path.moveTo(SkIntToScalar(20), SkIntToScalar(20));
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path.lineTo(SkIntToScalar(80), SkIntToScalar(20));
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path.lineTo(SkIntToScalar(30), SkIntToScalar(30));
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path.lineTo(SkIntToScalar(20), SkIntToScalar(80));
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canvas->drawPath(path, paint);
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}
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// Reverse concave test
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if (1) {
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SkPath path;
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canvas->save();
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canvas->translate(100, 0);
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path.moveTo(SkIntToScalar(20), SkIntToScalar(20));
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path.lineTo(SkIntToScalar(20), SkIntToScalar(80));
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path.lineTo(SkIntToScalar(30), SkIntToScalar(30));
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path.lineTo(SkIntToScalar(80), SkIntToScalar(20));
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canvas->drawPath(path, paint);
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canvas->restore();
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}
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// Bowtie (intersection)
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if (1) {
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SkPath path;
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canvas->save();
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canvas->translate(200, 0);
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path.moveTo(SkIntToScalar(20), SkIntToScalar(20));
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path.lineTo(SkIntToScalar(80), SkIntToScalar(80));
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path.lineTo(SkIntToScalar(80), SkIntToScalar(20));
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path.lineTo(SkIntToScalar(20), SkIntToScalar(80));
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canvas->drawPath(path, paint);
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canvas->restore();
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}
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// "fake" bowtie (concave, but no intersection)
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if (1) {
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SkPath path;
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canvas->save();
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canvas->translate(300, 0);
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path.moveTo(SkIntToScalar(20), SkIntToScalar(20));
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path.lineTo(SkIntToScalar(50), SkIntToScalar(40));
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path.lineTo(SkIntToScalar(80), SkIntToScalar(20));
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path.lineTo(SkIntToScalar(80), SkIntToScalar(80));
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path.lineTo(SkIntToScalar(50), SkIntToScalar(60));
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path.lineTo(SkIntToScalar(20), SkIntToScalar(80));
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canvas->drawPath(path, paint);
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canvas->restore();
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}
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// Fish test (intersection/concave)
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if (1) {
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SkPath path;
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canvas->save();
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canvas->translate(0, 100);
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path.moveTo(SkIntToScalar(20), SkIntToScalar(20));
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path.lineTo(SkIntToScalar(80), SkIntToScalar(80));
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path.lineTo(SkIntToScalar(70), SkIntToScalar(50));
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path.lineTo(SkIntToScalar(80), SkIntToScalar(20));
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path.lineTo(SkIntToScalar(20), SkIntToScalar(80));
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path.lineTo(SkIntToScalar(0), SkIntToScalar(50));
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canvas->drawPath(path, paint);
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canvas->restore();
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}
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// Collinear test
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if (1) {
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SkPath path;
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canvas->save();
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canvas->translate(100, 100);
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path.moveTo(SkIntToScalar(20), SkIntToScalar(20));
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path.lineTo(SkIntToScalar(50), SkIntToScalar(20));
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path.lineTo(SkIntToScalar(80), SkIntToScalar(20));
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path.lineTo(SkIntToScalar(50), SkIntToScalar(80));
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canvas->drawPath(path, paint);
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canvas->restore();
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}
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// Hole test
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if (1) {
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SkPath path;
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canvas->save();
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canvas->translate(200, 100);
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path.moveTo(SkIntToScalar(20), SkIntToScalar(20));
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path.lineTo(SkIntToScalar(80), SkIntToScalar(20));
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path.lineTo(SkIntToScalar(80), SkIntToScalar(80));
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path.lineTo(SkIntToScalar(20), SkIntToScalar(80));
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path.moveTo(SkIntToScalar(30), SkIntToScalar(30));
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path.lineTo(SkIntToScalar(30), SkIntToScalar(70));
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path.lineTo(SkIntToScalar(70), SkIntToScalar(70));
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path.lineTo(SkIntToScalar(70), SkIntToScalar(30));
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canvas->drawPath(path, paint);
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canvas->restore();
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}
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}
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private:
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typedef Sample INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_SAMPLE( return new ConcavePathView(); )
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