5fd9243fd6
git-svn-id: http://skia.googlecode.com/svn/trunk@1249 2bbb7eff-a529-9590-31e7-b0007b416f81
100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
#include "SampleCode.h"
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#include "SkView.h"
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#include "SkCanvas.h"
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#include "SkCamera.h"
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#include "SkEmbossMaskFilter.h"
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#include "SkGradientShader.h"
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#include "SkPath.h"
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#include "SkRegion.h"
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#include "SkShader.h"
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#include "SkUtils.h"
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#include "SkRandom.h"
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#include "SkImageDecoder.h"
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class CameraView : public SampleView {
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SkTDArray<SkShader*> fShaders;
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int fShaderIndex;
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bool fFrontFace;
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public:
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CameraView() {
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fRX = fRY = fRZ = 0;
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fShaderIndex = 0;
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fFrontFace = false;
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for (int i = 0;; i++) {
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SkString str;
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str.printf("/skimages/elephant%d.jpeg", i);
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SkBitmap bm;
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if (SkImageDecoder::DecodeFile(str.c_str(), &bm)) {
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SkShader* s = SkShader::CreateBitmapShader(bm,
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SkShader::kClamp_TileMode,
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SkShader::kClamp_TileMode);
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SkRect src = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) };
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SkRect dst = { -150, -150, 150, 150 };
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SkMatrix matrix;
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matrix.setRectToRect(src, dst, SkMatrix::kFill_ScaleToFit);
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s->setLocalMatrix(matrix);
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*fShaders.append() = s;
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} else {
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break;
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}
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}
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this->setBGColor(0xFFDDDDDD);
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}
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virtual ~CameraView() {
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fShaders.unrefAll();
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}
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protected:
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// overrides from SkEventSink
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virtual bool onQuery(SkEvent* evt) {
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if (SampleCode::TitleQ(*evt))
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{
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SampleCode::TitleR(evt, "Camera");
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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virtual void onDrawContent(SkCanvas* canvas) {
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canvas->translate(this->width()/2, this->height()/2);
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Sk3DView view;
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view.rotateX(fRX);
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view.rotateY(fRY);
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view.applyToCanvas(canvas);
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SkPaint paint;
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if (fShaders.count() > 0) {
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bool frontFace = view.dotWithNormal(0, 0, SK_Scalar1) < 0;
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if (frontFace != fFrontFace) {
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fFrontFace = frontFace;
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fShaderIndex = (fShaderIndex + 1) % fShaders.count();
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}
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paint.setAntiAlias(true);
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paint.setShader(fShaders[fShaderIndex]);
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SkRect r = { -150, -150, 150, 150 };
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canvas->drawRoundRect(r, 30, 30, paint);
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}
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fRY += SampleCode::GetAnimSecondsDelta() * 90;
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if (fRY >= SkIntToScalar(360)) {
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fRY = 0;
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}
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this->inval(NULL);
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}
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private:
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SkScalar fRX, fRY, fRZ;
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typedef SampleView INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static SkView* MyFactory() { return new CameraView; }
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static SkViewRegister reg(MyFactory);
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