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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 "SampleCode.h"
#include "SkView.h"
#include "SkCanvas.h"
#include "SkPaint.h"
#include "SkRandom.h"
#include "SkString.h"
class EmptyPathView : public SampleView {
public:
EmptyPathView() {}
protected:
// overrides from SkEventSink
virtual bool onQuery(SkEvent* evt) {
if (SampleCode::TitleQ(*evt)) {
SampleCode::TitleR(evt, "EmptyPath");
return true;
}
return this->INHERITED::onQuery(evt);
}
void drawEmpty(SkCanvas* canvas,
SkColor color,
const SkRect& clip,
SkPaint::Style style,
SkPath::FillType fill) {
SkPath path;
path.setFillType(fill);
SkPaint paint;
paint.setColor(color);
paint.setStyle(style);
canvas->save();
canvas->clipRect(clip);
canvas->drawPath(path, paint);
canvas->restore();
}
virtual void onDrawContent(SkCanvas* canvas) {
struct FillAndName {
SkPath::FillType fFill;
const char* fName;
};
static const FillAndName gFills[] = {
{SkPath::kWinding_FillType, "Winding"},
{SkPath::kEvenOdd_FillType, "Even / Odd"},
{SkPath::kInverseWinding_FillType, "Inverse Winding"},
{SkPath::kInverseEvenOdd_FillType, "Inverse Even / Odd"},
};
struct StyleAndName {
SkPaint::Style fStyle;
const char* fName;
};
static const StyleAndName gStyles[] = {
{SkPaint::kFill_Style, "Fill"},
{SkPaint::kStroke_Style, "Stroke"},
{SkPaint::kStrokeAndFill_Style, "Stroke And Fill"},
};
SkPaint titlePaint;
titlePaint.setColor(SK_ColorBLACK);
titlePaint.setAntiAlias(true);
titlePaint.setLCDRenderText(true);
titlePaint.setTextSize(24 * SK_Scalar1);
const char title[] = "Empty Paths Drawn Into Rectangle Clips With Indicated Style and Fill";
canvas->drawText(title, strlen(title),
40 * SK_Scalar1,
100*SK_Scalar1,
titlePaint);
SkRandom rand;
SkRect rect = SkRect::MakeWH(125*SK_Scalar1, 100*SK_Scalar1);
int i = 0;
canvas->save();
canvas->translate(80 * SK_Scalar1, 0);
canvas->save();
for (size_t style = 0; style < SK_ARRAY_COUNT(gStyles); ++style) {
for (size_t fill = 0; fill < SK_ARRAY_COUNT(gFills); ++fill) {
if (0 == i % 4) {
canvas->restore();
canvas->translate(0, rect.height() + 50 * SK_Scalar1);
canvas->save();
} else {
canvas->translate(rect.width() + 100 * SK_Scalar1, 0);
}
++i;
SkColor color = rand.nextU();
color = 0xff000000| color; // force solid
this->drawEmpty(canvas, color, rect,
gStyles[style].fStyle, gFills[fill].fFill);
SkPaint rectPaint;
rectPaint.setColor(SK_ColorBLACK);
rectPaint.setStyle(SkPaint::kStroke_Style);
rectPaint.setStrokeWidth(-1);
rectPaint.setAntiAlias(true);
canvas->drawRect(rect, rectPaint);
SkString label;
label.appendf("%s, %s", gStyles[style].fName, gFills[fill].fName);
SkPaint labelPaint;
labelPaint.setColor(color);
labelPaint.setAntiAlias(true);
labelPaint.setLCDRenderText(true);
canvas->drawText(label.c_str(), label.size(),
0, rect.height() + 15 * SK_Scalar1,
labelPaint);
}
}
canvas->restore();
canvas->restore();
}
private:
typedef SampleView INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static SkView* MyFactory() { return new EmptyPathView; }
static SkViewRegister reg(MyFactory);
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