| #include "SampleCode.h" |
| #include "SkView.h" |
| #include "SkCanvas.h" |
| #include "SkPaint.h" |
| #include "SkPath.h" |
| #include "SkRegion.h" |
| #include "SkShader.h" |
| #include "SkUtils.h" |
| #include "SkColorPriv.h" |
| #include "SkColorFilter.h" |
| #include "SkPicture.h" |
| #include "SkTypeface.h" |
| |
| // effects |
| #include "SkGradientShader.h" |
| #include "SkUnitMappers.h" |
| #include "SkBlurDrawLooper.h" |
| |
| static void makebm(SkBitmap* bm, SkBitmap::Config config, int w, int h) { |
| bm->setConfig(config, w, h); |
| bm->allocPixels(); |
| bm->eraseColor(0); |
| |
| SkCanvas canvas(*bm); |
| SkPoint pts[] = { 0, 0, SkIntToScalar(w), SkIntToScalar(h) }; |
| SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE }; |
| SkScalar pos[] = { 0, SK_Scalar1/2, SK_Scalar1 }; |
| SkPaint paint; |
| |
| SkUnitMapper* um = NULL; |
| |
| um = new SkCosineMapper; |
| // um = new SkDiscreteMapper(12); |
| |
| SkAutoUnref au(um); |
| |
| paint.setDither(true); |
| paint.setShader(SkGradientShader::CreateLinear(pts, colors, pos, |
| SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode, um))->unref(); |
| canvas.drawPaint(paint); |
| } |
| |
| static void setup(SkPaint* paint, const SkBitmap& bm, bool filter, |
| SkShader::TileMode tmx, SkShader::TileMode tmy) { |
| SkShader* shader = SkShader::CreateBitmapShader(bm, tmx, tmy); |
| paint->setShader(shader)->unref(); |
| paint->setFilterBitmap(filter); |
| } |
| |
| static const SkBitmap::Config gConfigs[] = { |
| SkBitmap::kARGB_8888_Config, |
| SkBitmap::kRGB_565_Config, |
| SkBitmap::kARGB_4444_Config |
| }; |
| static const int gWidth = 32; |
| static const int gHeight = 32; |
| |
| class TilingView : public SkView { |
| SkPicture fTextPicture; |
| SkBlurDrawLooper fLooper; |
| public: |
| TilingView() |
| : fLooper(SkIntToScalar(1), SkIntToScalar(2), SkIntToScalar(2), |
| 0x88000000) { |
| for (int i = 0; i < SK_ARRAY_COUNT(gConfigs); i++) { |
| makebm(&fTexture[i], gConfigs[i], gWidth, gHeight); |
| } |
| } |
| |
| SkBitmap fTexture[SK_ARRAY_COUNT(gConfigs)]; |
| |
| protected: |
| // overrides from SkEventSink |
| virtual bool onQuery(SkEvent* evt) { |
| if (SampleCode::TitleQ(*evt)) { |
| SampleCode::TitleR(evt, "Tiling"); |
| return true; |
| } |
| return this->INHERITED::onQuery(evt); |
| } |
| |
| void drawBG(SkCanvas* canvas) { |
| canvas->drawColor(SK_ColorWHITE); |
| } |
| |
| virtual void onDraw(SkCanvas* canvas) { |
| this->drawBG(canvas); |
| |
| SkRect r = { 0, 0, SkIntToScalar(gWidth*2), SkIntToScalar(gHeight*2) }; |
| |
| static const char* gConfigNames[] = { "8888", "565", "4444" }; |
| |
| static const bool gFilters[] = { false, true }; |
| static const char* gFilterNames[] = { "point", "bilinear" }; |
| |
| static const SkShader::TileMode gModes[] = { SkShader::kClamp_TileMode, SkShader::kRepeat_TileMode, SkShader::kMirror_TileMode }; |
| static const char* gModeNames[] = { "C", "R", "M" }; |
| |
| SkScalar y = SkIntToScalar(24); |
| SkScalar x = SkIntToScalar(10); |
| |
| SkCanvas* textCanvas = NULL; |
| if (fTextPicture.width() == 0) { |
| textCanvas = fTextPicture.beginRecording(1000, 1000); |
| } |
| |
| if (textCanvas) { |
| for (int kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) { |
| for (int ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) { |
| SkPaint p; |
| SkString str; |
| p.setAntiAlias(true); |
| p.setDither(true); |
| p.setLooper(&fLooper); |
| str.printf("[%s,%s]", gModeNames[kx], gModeNames[ky]); |
| |
| p.setTextAlign(SkPaint::kCenter_Align); |
| textCanvas->drawText(str.c_str(), str.size(), x + r.width()/2, y, p); |
| |
| x += r.width() * 4 / 3; |
| } |
| } |
| } |
| |
| y += SkIntToScalar(16); |
| |
| for (int i = 0; i < SK_ARRAY_COUNT(gConfigs); i++) { |
| for (int j = 0; j < SK_ARRAY_COUNT(gFilters); j++) { |
| x = SkIntToScalar(10); |
| for (int kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) { |
| for (int ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) { |
| SkPaint paint; |
| setup(&paint, fTexture[i], gFilters[j], gModes[kx], gModes[ky]); |
| paint.setDither(true); |
| |
| canvas->save(); |
| canvas->translate(x, y); |
| canvas->drawRect(r, paint); |
| canvas->restore(); |
| |
| x += r.width() * 4 / 3; |
| } |
| } |
| if (textCanvas) { |
| SkPaint p; |
| SkString str; |
| p.setAntiAlias(true); |
| p.setLooper(&fLooper); |
| str.printf("%s, %s", gConfigNames[i], gFilterNames[j]); |
| textCanvas->drawText(str.c_str(), str.size(), x, y + r.height() * 2 / 3, p); |
| } |
| |
| y += r.height() * 4 / 3; |
| } |
| } |
| |
| canvas->drawPicture(fTextPicture); |
| } |
| |
| virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) { |
| this->inval(NULL); |
| return this->INHERITED::onFindClickHandler(x, y); |
| } |
| |
| virtual bool onClick(Click* click) { |
| return this->INHERITED::onClick(click); |
| } |
| |
| private: |
| typedef SkView INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static SkView* MyFactory() { return new TilingView; } |
| static SkViewRegister reg(MyFactory); |
| |