skia2/samplecode/SampleAvoid.cpp

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Automatic update of all copyright notices to reflect new license terms. I have manually examined all of these diffs and restored a few files that seem to require manual adjustment. The following files still need to be modified manually, in a separate CL: android_sample/SampleApp/AndroidManifest.xml android_sample/SampleApp/res/layout/layout.xml android_sample/SampleApp/res/menu/sample.xml android_sample/SampleApp/res/values/strings.xml android_sample/SampleApp/src/com/skia/sampleapp/SampleApp.java android_sample/SampleApp/src/com/skia/sampleapp/SampleView.java experimental/CiCarbonSampleMain.c experimental/CocoaDebugger/main.m experimental/FileReaderApp/main.m experimental/SimpleCocoaApp/main.m experimental/iOSSampleApp/Shared/SkAlertPrompt.h experimental/iOSSampleApp/Shared/SkAlertPrompt.m experimental/iOSSampleApp/SkiOSSampleApp-Base.xcconfig experimental/iOSSampleApp/SkiOSSampleApp-Debug.xcconfig experimental/iOSSampleApp/SkiOSSampleApp-Release.xcconfig gpu/src/android/GrGLDefaultInterface_android.cpp gyp/common.gypi gyp_skia include/ports/SkHarfBuzzFont.h include/views/SkOSWindow_wxwidgets.h make.bat make.py src/opts/memset.arm.S src/opts/memset16_neon.S src/opts/memset32_neon.S src/opts/opts_check_arm.cpp src/ports/SkDebug_brew.cpp src/ports/SkMemory_brew.cpp src/ports/SkOSFile_brew.cpp src/ports/SkXMLParser_empty.cpp src/utils/ios/SkImageDecoder_iOS.mm src/utils/ios/SkOSFile_iOS.mm src/utils/ios/SkStream_NSData.mm tests/FillPathTest.cpp Review URL: http://codereview.appspot.com/4816058 git-svn-id: http://skia.googlecode.com/svn/trunk@1982 2bbb7eff-a529-9590-31e7-b0007b416f81
2011-07-28 14:26:00 +00:00
/*
* 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 "SkGradientShader.h"
#include "SkAvoidXfermode.h"
///////////////////////////////////////////////////////////////////////////////
class AvoidView : public SampleView {
SkShader* fShader;
enum {
W = 480,
H = 320
};
public:
AvoidView() {
SkColor colors[] = { SK_ColorRED, SK_ColorYELLOW, SK_ColorGREEN, SK_ColorCYAN, SK_ColorBLUE };
#if 0
SkPoint pts[] = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) };
fShader = SkGradientShader::CreateLinear(pts, colors, NULL,
SK_ARRAY_COUNT(colors),
SkShader::kMirror_TileMode);
#else
SkPoint pts[] = { { SkIntToScalar(W)/2, SkIntToScalar(H)/2 } };
fShader = SkGradientShader::CreateRadial(pts[0], SkIntToScalar(H)/5,
colors, NULL,
SK_ARRAY_COUNT(colors),
SkShader::kMirror_TileMode);
#endif
}
virtual ~AvoidView() {
fShader->unref();
}
protected:
virtual bool onQuery(SkEvent* evt) {
if (SampleCode::TitleQ(*evt)) {
SampleCode::TitleR(evt, "AvoidXfermode");
return true;
}
return this->INHERITED::onQuery(evt);
}
virtual void onDrawContent(SkCanvas* canvas) {
SkPaint paint;
SkRect r = { 0, 0, SkIntToScalar(W), SkIntToScalar(H) };
canvas->translate(r.width() / 6, r.height() / 6);
paint.setShader(fShader);
canvas->drawRect(r, paint);
static const struct {
int fTolerance;
SkAvoidXfermode::Mode fMode;
float fDX, fDY;
} gData[] = {
{ 16, SkAvoidXfermode::kAvoidColor_Mode, 0, 0 },
{ 255-16, SkAvoidXfermode::kAvoidColor_Mode, 1, 0 },
{ 16, SkAvoidXfermode::kTargetColor_Mode, 0, 1 },
{ 255-16, SkAvoidXfermode::kTargetColor_Mode, 1, 1 },
};
paint.setShader(NULL);
paint.setColor(SK_ColorMAGENTA);
SkPaint frameP;
frameP.setStyle(SkPaint::kStroke_Style);
for (size_t i = 0; i < SK_ARRAY_COUNT(gData); i++) {
SkAvoidXfermode mode(SK_ColorGREEN, gData[i].fTolerance,
gData[i].fMode);
paint.setXfermode(&mode);
int div = 3;
SkRect rr = { 0, 0, r.width()/div, r.height()/div };
rr.offset(r.width()/4 - rr.width()/2, r.height()/4 - rr.height()/2);
rr.offset(r.width() * gData[i].fDX/2, r.height() * gData[i].fDY/2);
canvas->drawRect(rr, paint);
paint.setXfermode(NULL);
canvas->drawRect(rr, frameP);
}
}
private:
typedef SampleView INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static SkView* MyFactory() {
return new AvoidView;
}
static SkViewRegister reg(MyFactory);