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/*
* 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.h"
#include "SkCanvas.h"
#include "SkCullPoints.h"
#include "SkPath.h"
#include "SkRandom.h"
static void test_hittest(SkCanvas* canvas, const SkPath& path) {
SkPaint paint;
SkRect r = path.getBounds();
paint.setColor(SK_ColorRED);
canvas->drawPath(path, paint);
const SkScalar MARGIN = SkIntToScalar(4);
paint.setColor(0x800000FF);
for (SkScalar y = r.fTop + SK_ScalarHalf - MARGIN; y < r.fBottom + MARGIN; y += SK_Scalar1) {
for (SkScalar x = r.fLeft + SK_ScalarHalf - MARGIN; x < r.fRight + MARGIN; x += SK_Scalar1) {
if (path.contains(x, y)) {
canvas->drawPoint(x, y, paint);
}
}
}
}
class HitTestPathGM : public skiagm::GM {
public:
HitTestPathGM () {}
protected:
SkString onShortName() override {
return SkString("hittestpath");
}
SkISize onISize() override { return SkISize::Make(700, 460); }
void onDraw(SkCanvas* canvas) override {
SkPath path;
SkRandom rand;
int scale = 300;
for (int i = 0; i < 4; ++i) {
// get the random values deterministically
SkScalar randoms[12];
for (int index = 0; index < (int) SK_ARRAY_COUNT(randoms); ++index) {
randoms[index] = rand.nextUScalar1();
}
path.lineTo(randoms[0] * scale, randoms[1] * scale);
path.quadTo(randoms[2] * scale, randoms[3] * scale,
randoms[4] * scale, randoms[5] * scale);
path.cubicTo(randoms[6] * scale, randoms[7] * scale,
randoms[8] * scale, randoms[9] * scale,
randoms[10] * scale, randoms[11] * scale);
}
path.setFillType(SkPath::kEvenOdd_FillType);
path.offset(SkIntToScalar(20), SkIntToScalar(20));
test_hittest(canvas, path);
canvas->translate(SkIntToScalar(scale), 0);
path.setFillType(SkPath::kWinding_FillType);
test_hittest(canvas, path);
}
private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static skiagm::GM* MyFactory(void*) { return new HitTestPathGM; }
static skiagm::GMRegistry reg(MyFactory);
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