blob: 6dd0dcb1633b7538769d3b6087efe2f404ca62be [file] [log] [blame]
/*
* 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 "gm/gm.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPoint.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/utils/SkRandom.h"
#include <stddef.h>
namespace skiagm {
class PointsGM : public GM {
public:
PointsGM() {}
protected:
SkString onShortName() override {
return SkString("points");
}
SkISize onISize() override {
return SkISize::Make(640, 490);
}
static void fill_pts(SkPoint pts[], size_t n, SkRandom* rand) {
for (size_t i = 0; i < n; i++) {
// Compute these independently and store in variables, rather
// than in the parameter-passing expression, to get consistent
// evaluation order across compilers.
SkScalar y = rand->nextUScalar1() * 480;
SkScalar x = rand->nextUScalar1() * 640;
pts[i].set(x, y);
}
}
void onDraw(SkCanvas* canvas) override {
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 GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM( return new PointsGM; )
}