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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 "SkPath.h"
#include "SkRandom.h"
namespace skiagm {
class ComplexClip2GM : public GM {
public:
ComplexClip2GM(bool doPaths, bool antiAlias)
: fDoPaths(doPaths)
, fAntiAlias(antiAlias) {
this->setBGColor(SkColorSetRGB(0xDD,0xA0,0xDD));
// offset the rects a bit so we get antialiasing even in the rect case
SkScalar xA = 0.65f;
SkScalar xB = 10.65f;
SkScalar xC = 20.65f;
SkScalar xD = 30.65f;
SkScalar xE = 40.65f;
SkScalar xF = 50.65f;
SkScalar yA = 0.65f;
SkScalar yB = 10.65f;
SkScalar yC = 20.65f;
SkScalar yD = 30.65f;
SkScalar yE = 40.65f;
SkScalar yF = 50.65f;
fWidth = xF - xA;
fHeight = yF - yA;
fRects[0].set(xB, yB, xE, yE);
fPaths[0].addRoundRect(fRects[0], SkIntToScalar(5), SkIntToScalar(5));
fRectColors[0] = SK_ColorRED;
fRects[1].set(xA, yA, xD, yD);
fPaths[1].addRoundRect(fRects[1], SkIntToScalar(5), SkIntToScalar(5));
fRectColors[1] = SK_ColorGREEN;
fRects[2].set(xC, yA, xF, yD);
fPaths[2].addRoundRect(fRects[2], SkIntToScalar(5), SkIntToScalar(5));
fRectColors[2] = SK_ColorBLUE;
fRects[3].set(xA, yC, xD, yF);
fPaths[3].addRoundRect(fRects[3], SkIntToScalar(5), SkIntToScalar(5));
fRectColors[3] = SK_ColorYELLOW;
fRects[4].set(xC, yC, xF, yF);
fPaths[4].addRoundRect(fRects[4], SkIntToScalar(5), SkIntToScalar(5));
fRectColors[4] = SK_ColorCYAN;
fTotalWidth = kCols * fWidth + SK_Scalar1 * (kCols + 1) * kPadX;
fTotalHeight = kRows * fHeight + SK_Scalar1 * (kRows + 1) * kPadY;
SkRegion::Op ops[] = {
SkRegion::kDifference_Op,
SkRegion::kIntersect_Op,
SkRegion::kUnion_Op,
SkRegion::kXOR_Op,
SkRegion::kReverseDifference_Op,
SkRegion::kReplace_Op,
};
SkLCGRandom r;
for (int i = 0; i < kRows; ++i) {
for (int j = 0; j < kCols; ++j) {
for (int k = 0; k < 5; ++k) {
fOps[j*kRows+i][k] = ops[r.nextU() % SK_ARRAY_COUNT(ops)];
}
}
}
}
protected:
static const int kRows = 5;
static const int kCols = 5;
static const int kPadX = 20;
static const int kPadY = 20;
virtual SkString onShortName() {
if (!fDoPaths && !fAntiAlias) {
return SkString("complexclip2");
}
SkString str;
str.printf("complexclip2_%s_%s",
fDoPaths ? "path" : "rect",
fAntiAlias ? "aa" : "bw");
return str;
}
virtual SkISize onISize() {
return make_isize(SkScalarRoundToInt(fTotalWidth),
SkScalarRoundToInt(fTotalHeight));
}
virtual void onDraw(SkCanvas* canvas) {
SkPaint rectPaint;
rectPaint.setStyle(SkPaint::kStroke_Style);
rectPaint.setStrokeWidth(-1);
SkPaint fillPaint;
fillPaint.setColor(SkColorSetRGB(0xA0,0xDD,0xA0));
for (int i = 0; i < kRows; ++i) {
for (int j = 0; j < kCols; ++j) {
canvas->save();
canvas->translate(kPadX * SK_Scalar1 + (fWidth + kPadX * SK_Scalar1)*j,
kPadY * SK_Scalar1 + (fHeight + kPadY * SK_Scalar1)*i);
// draw the original shapes first so we can see the
// antialiasing on the clipped draw
for (int k = 0; k < 5; ++k) {
rectPaint.setColor(fRectColors[k]);
if (fDoPaths) {
canvas->drawPath(fPaths[k], rectPaint);
} else {
canvas->drawRect(fRects[k], rectPaint);
}
}
for (int k = 0; k < 5; ++k) {
if (fDoPaths) {
canvas->clipPath(fPaths[k],
fOps[j*kRows+i][k],
fAntiAlias);
} else {
canvas->clipRect(fRects[k],
fOps[j*kRows+i][k],
fAntiAlias);
}
}
canvas->drawRect(SkRect::MakeWH(fWidth, fHeight), fillPaint);
canvas->restore();
}
}
}
private:
bool fDoPaths;
bool fAntiAlias;
SkRect fRects[5];
SkPath fPaths[5];
SkColor fRectColors[5];
SkRegion::Op fOps[kRows * kCols][5];
SkScalar fWidth;
SkScalar fHeight;
SkScalar fTotalWidth;
SkScalar fTotalHeight;
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
// bw rects
static GM* MyFactory(void*) { return new ComplexClip2GM(false, false); }
static GMRegistry reg(MyFactory);
// bw paths
static GM* MyFactory2(void*) { return new ComplexClip2GM(true, false); }
static GMRegistry reg2(MyFactory2);
// aa rects
static GM* MyFactory3(void*) { return new ComplexClip2GM(false, true); }
static GMRegistry reg3(MyFactory3);
// aa paths
static GM* MyFactory4(void*) { return new ComplexClip2GM(true, true); }
static GMRegistry reg4(MyFactory4);
}
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