| #include "SampleCode.h" |
| #include "SkView.h" |
| #include "SkCanvas.h" |
| #include "SkCamera.h" |
| #include "SkEmbossMaskFilter.h" |
| #include "SkGradientShader.h" |
| #include "SkPath.h" |
| #include "SkRegion.h" |
| #include "SkShader.h" |
| #include "SkUtils.h" |
| #include "SkRandom.h" |
| #include "SkImageDecoder.h" |
| |
| class CameraView : public SampleView { |
| SkTDArray<SkShader*> fShaders; |
| int fShaderIndex; |
| bool fFrontFace; |
| public: |
| CameraView() { |
| fRX = fRY = fRZ = 0; |
| fShaderIndex = 0; |
| fFrontFace = false; |
| |
| for (int i = 0;; i++) { |
| SkString str; |
| str.printf("/skimages/elephant%d.jpeg", i); |
| SkBitmap bm; |
| if (SkImageDecoder::DecodeFile(str.c_str(), &bm)) { |
| SkShader* s = SkShader::CreateBitmapShader(bm, |
| SkShader::kClamp_TileMode, |
| SkShader::kClamp_TileMode); |
| |
| SkRect src = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) }; |
| SkRect dst = { -150, -150, 150, 150 }; |
| SkMatrix matrix; |
| matrix.setRectToRect(src, dst, SkMatrix::kFill_ScaleToFit); |
| s->setLocalMatrix(matrix); |
| *fShaders.append() = s; |
| } else { |
| break; |
| } |
| } |
| this->setBGColor(0xFFDDDDDD); |
| } |
| |
| virtual ~CameraView() { |
| fShaders.unrefAll(); |
| } |
| |
| protected: |
| // overrides from SkEventSink |
| virtual bool onQuery(SkEvent* evt) { |
| if (SampleCode::TitleQ(*evt)) |
| { |
| SampleCode::TitleR(evt, "Camera"); |
| return true; |
| } |
| return this->INHERITED::onQuery(evt); |
| } |
| |
| virtual void onDrawContent(SkCanvas* canvas) { |
| canvas->translate(this->width()/2, this->height()/2); |
| |
| Sk3DView view; |
| view.rotateX(fRX); |
| view.rotateY(fRY); |
| view.applyToCanvas(canvas); |
| |
| SkPaint paint; |
| if (fShaders.count() > 0) { |
| bool frontFace = view.dotWithNormal(0, 0, SK_Scalar1) < 0; |
| if (frontFace != fFrontFace) { |
| fFrontFace = frontFace; |
| fShaderIndex = (fShaderIndex + 1) % fShaders.count(); |
| } |
| |
| paint.setAntiAlias(true); |
| paint.setShader(fShaders[fShaderIndex]); |
| SkRect r = { -150, -150, 150, 150 }; |
| canvas->drawRoundRect(r, 30, 30, paint); |
| } |
| |
| fRY += SampleCode::GetAnimSecondsDelta() * 90; |
| if (fRY >= SkIntToScalar(360)) { |
| fRY = 0; |
| } |
| this->inval(NULL); |
| } |
| |
| private: |
| SkScalar fRX, fRY, fRZ; |
| typedef SampleView INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static SkView* MyFactory() { return new CameraView; } |
| static SkViewRegister reg(MyFactory); |
| |