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/*
* Copyright 2012 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 "SkBlurMaskFilter.h"
#include "SkCanvas.h"
#include "SkPath.h"
#define STROKE_WIDTH SkIntToScalar(10)
typedef void (*Proc)(SkCanvas*, const SkRect&, const SkPaint&);
static void fill_rect(SkCanvas* canvas, const SkRect& r, const SkPaint& p) {
canvas->drawRect(r, p);
}
static void stroke_rect(SkCanvas* canvas, const SkRect& r, const SkPaint& p) {
SkPaint paint(p);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(STROKE_WIDTH);
canvas->drawRect(r, paint);
}
static void draw_donut(SkCanvas* canvas, const SkRect& r, const SkPaint& p) {
SkRect rect;
SkPath path;
rect = r;
rect.outset(STROKE_WIDTH/2, STROKE_WIDTH/2);
path.addRect(rect);
rect = r;
rect.inset(STROKE_WIDTH/2, STROKE_WIDTH/2);
path.addRect(rect);
path.setFillType(SkPath::kEvenOdd_FillType);
canvas->drawPath(path, p);
}
static void draw_donut_skewed(SkCanvas* canvas, const SkRect& r, const SkPaint& p) {
SkRect rect;
SkPath path;
rect = r;
rect.outset(STROKE_WIDTH/2, STROKE_WIDTH/2);
path.addRect(rect);
rect = r;
rect.inset(STROKE_WIDTH/2, STROKE_WIDTH/2);
rect.offset(7, -7);
path.addRect(rect);
path.setFillType(SkPath::kEvenOdd_FillType);
canvas->drawPath(path, p);
}
class BlurRectGM : public skiagm::GM {
SkAutoTUnref<SkMaskFilter> fMaskFilter;
public:
BlurRectGM() :
fMaskFilter(SkBlurMaskFilter::Create(STROKE_WIDTH/2,
SkBlurMaskFilter::kNormal_BlurStyle,
SkBlurMaskFilter::kHighQuality_BlurFlag))
{}
protected:
virtual SkString onShortName() {
return SkString("blurrect");
}
virtual SkISize onISize() {
return SkISize::Make(640, 480);
}
virtual void onDraw(SkCanvas* canvas) {
canvas->translate(STROKE_WIDTH*3/2, STROKE_WIDTH*3/2);
SkPaint paint;
paint.setMaskFilter(fMaskFilter);
static const Proc procs[] = {
fill_rect, draw_donut, draw_donut_skewed
};
SkRect r = { 0, 0, 250, 120 };
this->drawProcs(canvas, r, paint, false, procs, SK_ARRAY_COUNT(procs));
canvas->translate(r.width() * 4/3, 0);
this->drawProcs(canvas, r, paint, true, procs, SK_ARRAY_COUNT(procs));
}
virtual uint32_t onGetFlags() const { return kSkipPipe_Flag; }
private:
void drawProcs(SkCanvas* canvas, const SkRect& r, const SkPaint& paint,
bool doClip, const Proc procs[], size_t procsCount) {
SkAutoCanvasRestore acr(canvas, true);
for (size_t i = 0; i < procsCount; ++i) {
if (doClip) {
SkRect clipRect(r);
clipRect.inset(STROKE_WIDTH/2, STROKE_WIDTH/2);
canvas->save();
canvas->clipRect(r);
}
procs[i](canvas, r, paint);
if (doClip) {
canvas->restore();
}
canvas->translate(0, r.height() * 4/3);
}
}
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return new BlurRectGM;)
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