skia2/samplecode/SamplePoints.cpp
Hal Canary ea60b951d7 IWYU: SkUtils.h
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>
2018-08-21 16:05:44 +00:00

76 lines
1.9 KiB
C++

/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Sample.h"
#include "SkCanvas.h"
#include "SkGradientShader.h"
#include "SkGraphics.h"
#include "SkPath.h"
#include "SkRandom.h"
#include "SkRegion.h"
#include "SkShader.h"
#include "SkUTF.h"
#include "SkColorPriv.h"
#include "SkColorFilter.h"
#include "SkTime.h"
#include "SkTypeface.h"
#include "SkStream.h"
class PointsView : public Sample {
public:
PointsView() {}
protected:
virtual bool onQuery(Sample::Event* evt) {
if (Sample::TitleQ(*evt)) {
Sample::TitleR(evt, "Points");
return true;
}
return this->INHERITED::onQuery(evt);
}
static void fill_pts(SkPoint pts[], size_t n, SkRandom* rand) {
for (size_t i = 0; i < n; i++)
pts[i].set(rand->nextUScalar1() * 640, rand->nextUScalar1() * 480);
}
virtual void onDrawContent(SkCanvas* canvas) {
canvas->translate(SK_Scalar1, SK_Scalar1);
SkRandom rand;
SkPaint p0, p1, p2, p3;
const size_t n = 99;
p0.setColor(SK_ColorRED);
p1.setColor(SK_ColorGREEN);
p2.setColor(SK_ColorBLUE);
p3.setColor(SK_ColorWHITE);
p0.setStrokeWidth(SkIntToScalar(4));
p2.setStrokeCap(SkPaint::kRound_Cap);
p2.setStrokeWidth(SkIntToScalar(6));
SkPoint* pts = new SkPoint[n];
fill_pts(pts, n, &rand);
canvas->drawPoints(SkCanvas::kPolygon_PointMode, n, pts, p0);
canvas->drawPoints(SkCanvas::kLines_PointMode, n, pts, p1);
canvas->drawPoints(SkCanvas::kPoints_PointMode, n, pts, p2);
canvas->drawPoints(SkCanvas::kPoints_PointMode, n, pts, p3);
delete[] pts;
}
private:
typedef Sample INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_SAMPLE( return new PointsView(); )