blob: 13cdd5dbdf3c3213e41de3065f848a40a238353f [file] [log] [blame]
/*
* Copyright 2012 Intel 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/SkDrawLooper.h"
#include "include/core/SkMaskFilter.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPoint.h"
#include "include/core/SkScalar.h"
#include "include/core/SkShader.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkTileMode.h"
#include "include/core/SkTypes.h"
#include "include/effects/SkBlurDrawLooper.h"
#include "include/effects/SkGradientShader.h"
#include "include/private/SkTArray.h"
#include "include/utils/SkRandom.h"
#include "src/core/SkBlurMask.h"
namespace skiagm {
class CircleGM : public GM {
sk_sp<SkDrawLooper> fLooper;
enum {
kLooperColorSentinel = 0x01020304
};
public:
CircleGM() {
this->setBGColor(0xFF000000);
this->makePaints();
this->makeMatrices();
}
protected:
SkString onShortName() override {
return SkString("circles");
}
SkISize onISize() override {
return SkISize::Make(1200, 900);
}
void makePaints() {
{
// no AA
SkPaint p;
fPaints.push_back(p);
}
{
// AA
SkPaint p;
p.setAntiAlias(true);
fPaints.push_back(p);
}
{
// AA with mask filter
SkPaint p;
p.setAntiAlias(true);
p.setMaskFilter(SkMaskFilter::MakeBlur(
kNormal_SkBlurStyle,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5))));
fPaints.push_back(p);
}
{
// AA with radial shader
SkPaint p;
p.setAntiAlias(true);
SkPoint center = SkPoint::Make(SkIntToScalar(40), SkIntToScalar(40));
SkColor colors[] = { SK_ColorBLUE, SK_ColorRED, SK_ColorGREEN };
SkScalar pos[] = { 0, SK_ScalarHalf, SK_Scalar1 };
p.setShader(SkGradientShader::MakeRadial(center, 20, colors, pos, SK_ARRAY_COUNT(colors),
SkTileMode::kClamp));
fPaints.push_back(p);
}
fLooper = SkBlurDrawLooper::Make(SK_ColorBLUE, SkBlurMask::ConvertRadiusToSigma(10),5,10);
{
SkPaint p;
p.setColor(kLooperColorSentinel);
p.setAntiAlias(true);
fPaints.push_back(p);
}
{
// AA with stroke style
SkPaint p;
p.setAntiAlias(true);
p.setStroke(true);
p.setStrokeWidth(SkIntToScalar(3));
fPaints.push_back(p);
}
{
// AA with stroke style, width = 0
SkPaint p;
p.setAntiAlias(true);
p.setStroke(true);
fPaints.push_back(p);
}
{
// AA with stroke and fill style
SkPaint p;
p.setAntiAlias(true);
p.setStyle(SkPaint::kStrokeAndFill_Style);
p.setStrokeWidth(SkIntToScalar(2));
fPaints.push_back(p);
}
}
void makeMatrices() {
{
SkMatrix m;
m.setScale(SkIntToScalar(2), SkIntToScalar(3));
fMatrices.push_back(m);
}
{
SkMatrix m;
m.setScale(SkIntToScalar(2), SkIntToScalar(2));
fMatrices.push_back(m);
}
{
SkMatrix m;
m.setSkew(SkIntToScalar(2), SkIntToScalar(3));
fMatrices.push_back(m);
}
{
SkMatrix m;
m.setSkew(SkIntToScalar(2), SkIntToScalar(2));
fMatrices.push_back(m);
}
{
SkMatrix m;
m.setRotate(SkIntToScalar(30));
fMatrices.push_back(m);
}
}
void onDraw(SkCanvas* canvas) override {
// Draw a giant AA circle as the background.
SkISize size = this->getISize();
SkScalar giantRadius = std::min(SkIntToScalar(size.fWidth),
SkIntToScalar(size.fHeight)) / 2.f;
SkPoint giantCenter = SkPoint::Make(SkIntToScalar(size.fWidth/2),
SkIntToScalar(size.fHeight/2));
SkPaint giantPaint;
giantPaint.setAntiAlias(true);
giantPaint.setColor(0x80808080);
canvas->drawCircle(giantCenter, giantRadius, giantPaint);
SkRandom rand;
canvas->translate(20 * SK_Scalar1, 20 * SK_Scalar1);
int i;
for (i = 0; i < fPaints.count(); ++i) {
canvas->save();
// position the path, and make it at off-integer coords.
canvas->translate(SK_Scalar1 * 200 * (i % 5) + SK_Scalar1 / 4,
SK_Scalar1 * 200 * (i / 5) + 3 * SK_Scalar1 / 4);
SkPaint p = fPaints[i];
p.setColor(rand.nextU() | 0xff000000);
if (fPaints[i].getColor() == kLooperColorSentinel) {
fLooper->apply(canvas, p, [](SkCanvas* c, const SkPaint& p) {
c->drawCircle(40, 40, 20, p);
});
} else {
canvas->drawCircle(40, 40, 20, p);
}
canvas->restore();
}
for (int j = 0; j < fMatrices.count(); ++j, ++i) {
canvas->save();
canvas->translate(SK_Scalar1 * 200 * (i % 5) + SK_Scalar1 / 4,
SK_Scalar1 * 200 * (i / 5) + 3 * SK_Scalar1 / 4);
canvas->concat(fMatrices[j]);
SkPaint paint;
paint.setAntiAlias(true);
paint.setColor(rand.nextU() | 0xff000000);
canvas->drawCircle(40, 40, 20, paint);
canvas->restore();
}
}
private:
using INHERITED = GM;
SkTArray<SkPaint> fPaints;
SkTArray<SkMatrix> fMatrices;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM( return new CircleGM; )
} // namespace skiagm