blob: fb80269af75104f4e8dce11474e8caa68b60deea [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/SkBlurTypes.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:
using INHERITED = GM;
};
DEF_GM( return new PointsGM; )
} // namespace skiagm
#include "include/core/SkMaskFilter.h"
DEF_SIMPLE_GM(points_maskfilter, canvas, 512, 256) {
constexpr int N = 30;
SkPoint pts[N];
SkRandom rand;
for (SkPoint& p : pts) {
p.fX = rand.nextF() * 220 + 18;
p.fY = rand.nextF() * 220 + 18;
}
auto mf = SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, 6);
const SkPaint::Cap caps[] = { SkPaint::kSquare_Cap, SkPaint::kRound_Cap };
SkPaint paint;
paint.setAntiAlias(true);
paint.setStroke(true);
paint.setStrokeWidth(10);
for (auto cap : caps) {
paint.setStrokeCap(cap);
paint.setMaskFilter(mf);
paint.setColor(SK_ColorBLACK);
canvas->drawPoints(SkCanvas::kPoints_PointMode, N, pts, paint);
paint.setMaskFilter(nullptr);
paint.setColor(SK_ColorRED);
canvas->drawPoints(SkCanvas::kPoints_PointMode, N, pts, paint);
canvas->translate(256, 0);
}
}