grab from latest android
git-svn-id: http://skia.googlecode.com/svn/trunk@27 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleImageDir.cpp b/samplecode/SampleImageDir.cpp
new file mode 100644
index 0000000..2c55ab0
--- /dev/null
+++ b/samplecode/SampleImageDir.cpp
@@ -0,0 +1,319 @@
+#include "SampleCode.h"
+#include "SkView.h"
+#include "SkCanvas.h"
+#include "SkGradientShader.h"
+#include "SkGraphics.h"
+#include "SkImageDecoder.h"
+#include "SkPath.h"
+#include "SkPorterDuff.h"
+#include "SkRegion.h"
+#include "SkShader.h"
+#include "SkUtils.h"
+#include "SkXfermode.h"
+#include "SkShaderExtras.h"
+#include "SkColorPriv.h"
+#include "SkColorFilter.h"
+#include "SkTime.h"
+#include "SkTypeface.h"
+
+#include "SkImageRef_GlobalPool.h"
+#include "SkOSFile.h"
+#include "SkStream.h"
+
+#include "SkBlurDrawLooper.h"
+#include "SkColorMatrixFilter.h"
+
+static void drawmarshmallow(SkCanvas* canvas) {
+ SkBitmap bitmap;
+ SkPaint paint;
+ SkRect r;
+ SkMatrix m;
+
+ SkImageDecoder::DecodeFile("/Users/reed/Downloads/3elfs.jpg", &bitmap);
+ SkShader* s = SkShader::CreateBitmapShader(bitmap,
+ SkShader::kRepeat_TileMode,
+ SkShader::kRepeat_TileMode);
+ paint.setShader(s)->unref();
+ m.setTranslate(SkIntToScalar(250), SkIntToScalar(134));
+ s->setLocalMatrix(m);
+
+ r.set(SkIntToScalar(250),
+ SkIntToScalar(134),
+ SkIntToScalar(250 + 449),
+ SkIntToScalar(134 + 701));
+ paint.setFlags(2);
+
+ canvas->drawRect(r, paint);
+}
+
+static void DrawRoundRect(SkCanvas& canvas) {
+ bool ret = false;
+ SkPaint paint;
+ SkBitmap bitmap;
+ SkMatrix matrix;
+ matrix.reset();
+
+ bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1370, 812);
+ bitmap.allocPixels();
+#if 0
+ SkCanvas canvas;
+ canvas.setBitmapDevice(bitmap);
+#endif
+
+ // set up clipper
+ SkRect skclip;
+ skclip.set(SkIntToFixed(284), SkIntToFixed(40), SkIntToFixed(1370), SkIntToFixed(708));
+
+// ret = canvas.clipRect(skclip);
+// SkASSERT(ret);
+
+ matrix.set(SkMatrix::kMTransX, SkFloatToFixed(-1153.28));
+ matrix.set(SkMatrix::kMTransY, SkFloatToFixed(1180.50));
+
+ matrix.set(SkMatrix::kMScaleX, SkFloatToFixed(0.177171));
+ matrix.set(SkMatrix::kMScaleY, SkFloatToFixed(0.177043));
+
+ matrix.set(SkMatrix::kMSkewX, SkFloatToFixed(0.126968));
+ matrix.set(SkMatrix::kMSkewY, SkFloatToFixed(-0.126876));
+
+ matrix.set(SkMatrix::kMPersp0, SkFloatToFixed(0.0));
+ matrix.set(SkMatrix::kMPersp1, SkFloatToFixed(0.0));
+
+ ret = canvas.concat(matrix);
+
+ paint.setAntiAlias(true);
+ paint.setColor(0xb2202020);
+ paint.setStyle(SkPaint::kStroke_Style);
+ paint.setStrokeWidth(SkFloatToFixed(68.13));
+
+ SkRect r;
+ r.set(SkFloatToFixed(-313.714417), SkFloatToFixed(-4.826389), SkFloatToFixed(18014.447266), SkFloatToFixed(1858.154541));
+ canvas.drawRoundRect(r, SkFloatToFixed(91.756363), SkFloatToFixed(91.756363), paint);
+}
+
+// ownership of the stream is transferred
+static bool SetImageRef(SkBitmap* bitmap, SkStream* stream,
+ SkBitmap::Config pref, const char name[] = NULL) {
+#if 0
+ // test buffer streams
+ SkStream* str = new SkBufferStream(stream, 717);
+ stream->unref();
+ stream = str;
+#endif
+
+ SkImageRef* ref = new SkImageRef_GlobalPool(stream, pref, 1);
+ ref->setURI(name);
+ if (!ref->getInfo(bitmap)) {
+ delete ref;
+ return false;
+ }
+ bitmap->setPixelRef(ref)->unref();
+ return true;
+}
+
+//#define SPECIFIC_IMAGE "/skimages/72.jpg"
+#define SPECIFIC_IMAGE "/Users/reed/Downloads/3elfs.jpg"
+
+#define IMAGE_DIR "/skimages/"
+#define IMAGE_SUFFIX ".gif"
+
+class ImageDirView : public SkView {
+public:
+ SkBitmap* fBitmaps;
+ SkString* fStrings;
+ int fBitmapCount;
+ int fCurrIndex;
+ SkScalar fSaturation;
+ SkScalar fAngle;
+
+ ImageDirView() {
+ SkImageRef_GlobalPool::SetRAMBudget(320 * 1024);
+
+#ifdef SPECIFIC_IMAGE
+ fBitmaps = new SkBitmap[3];
+ fStrings = new SkString[3];
+ fBitmapCount = 3;
+ const SkBitmap::Config configs[] = {
+ SkBitmap::kARGB_8888_Config,
+ SkBitmap::kRGB_565_Config,
+ SkBitmap::kARGB_4444_Config
+ };
+ for (int i = 0; i < fBitmapCount; i++) {
+#if 1
+ SkStream* stream = new SkFILEStream(SPECIFIC_IMAGE);
+ SetImageRef(&fBitmaps[i], stream, configs[i], SPECIFIC_IMAGE);
+#else
+ SkImageDecoder::DecodeFile(SPECIFIC_IMAGE, &fBitmaps[i]);
+#endif
+ }
+#else
+ int i, N = 0;
+ SkOSFile::Iter iter(IMAGE_DIR, IMAGE_SUFFIX);
+ SkString name;
+ while (iter.next(&name)) {
+ N += 1;
+ }
+ fBitmaps = new SkBitmap[N];
+ fStrings = new SkString[N];
+ iter.reset(IMAGE_DIR, IMAGE_SUFFIX);
+ for (i = 0; i < N; i++) {
+ iter.next(&name);
+ SkString path(IMAGE_DIR);
+ path.append(name);
+ SkStream* stream = new SkFILEStream(path.c_str());
+
+ SetImageRef(&fBitmaps[i], stream, SkBitmap::kNo_Config,
+ name.c_str());
+ fStrings[i] = name;
+ }
+ fBitmapCount = N;
+#endif
+ fCurrIndex = 0;
+ fDX = fDY = 0;
+
+ fSaturation = SK_Scalar1;
+ fAngle = 0;
+
+ fScale = SK_Scalar1;
+ }
+
+ virtual ~ImageDirView() {
+ delete[] fBitmaps;
+ delete[] fStrings;
+
+ SkImageRef_GlobalPool::DumpPool();
+ }
+
+protected:
+ // overrides from SkEventSink
+ virtual bool onQuery(SkEvent* evt) {
+ if (SampleCode::TitleQ(*evt)) {
+ SkString str("ImageDir: ");
+#ifdef SPECIFIC_IMAGE
+ str.append(SPECIFIC_IMAGE);
+#else
+ str.append(IMAGE_DIR);
+#endif
+ SampleCode::TitleR(evt, str.c_str());
+ return true;
+ }
+ return this->INHERITED::onQuery(evt);
+ }
+
+ void drawBG(SkCanvas* canvas) {
+// canvas->drawColor(0xFFDDDDDD);
+ canvas->drawColor(SK_ColorGRAY);
+ canvas->drawColor(SK_ColorWHITE);
+ }
+
+ SkScalar fScale;
+ virtual void onDraw(SkCanvas* canvas) {
+ this->drawBG(canvas);
+
+ if (true) {
+ canvas->scale(SkIntToScalar(2), SkIntToScalar(2));
+ drawmarshmallow(canvas);
+ return;
+ }
+
+ if (false) {
+ SkPaint p;
+ p.setStyle(SkPaint::kStroke_Style);
+ p.setStrokeWidth(SkIntToScalar(4));
+ canvas->drawCircle(SkIntToScalar(100), SkIntToScalar(100), SkIntToScalar(50), p);
+ p.setAntiAlias(true);
+ canvas->drawCircle(SkIntToScalar(300), SkIntToScalar(100), SkIntToScalar(50), p);
+ }
+ if (false) {
+ SkScalar cx = this->width()/2;
+ SkScalar cy = this->height()/2;
+ canvas->translate(cx, cy);
+ canvas->scale(fScale, fScale);
+ canvas->translate(-cx, -cy);
+ DrawRoundRect(*canvas);
+ return;
+ }
+
+ SkScalar scale = SK_Scalar1 * 999/1000;
+// scale = SK_Scalar1/2;
+
+ canvas->translate(SkIntToScalar(10), SkIntToScalar(10));
+ // canvas->scale(scale, scale);
+
+ SkScalar x = SkIntToScalar(32), y = SkIntToScalar(32);
+ SkPaint paint;
+
+ // x += fDX;
+ // y += fDY;
+
+// paint.setLooper(new SkBlurDrawLooper(SkIntToScalar(12), 0, 0, 0xDD000000))->unref();
+
+#if 0
+ for (int i = 0; i < fBitmapCount; i++) {
+ SkPaint p;
+
+#if 1
+ const SkScalar cm[] = {
+ SkIntToScalar(2), 0, 0, 0, SkIntToScalar(-255),
+ 0, SkIntToScalar(2), 0, 0, SkIntToScalar(-255),
+ 0, 0, SkIntToScalar(2), 0, SkIntToScalar(-255),
+ 0, 0, 0, SkIntToScalar(1), 0
+ };
+ SkColorFilter* cf = new SkColorMatrixFilter(cm);
+ p.setColorFilter(cf)->unref();
+#endif
+
+ canvas->drawBitmap(fBitmaps[i], x, y, &p);
+ x += SkIntToScalar(fBitmaps[i].width() + 10);
+ }
+ return;
+#endif
+
+ canvas->drawBitmap(fBitmaps[fCurrIndex], x, y, &paint);
+#ifndef SPECIFIC_IMAGE
+ if (true) {
+ fCurrIndex += 1;
+ if (fCurrIndex >= fBitmapCount) {
+ fCurrIndex = 0;
+ }
+ this->inval(NULL);
+ }
+#endif
+ }
+
+ virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
+ if (true) {
+ fCurrIndex += 1;
+ if (fCurrIndex >= fBitmapCount)
+ fCurrIndex = 0;
+ this->inval(NULL);
+ }
+ return new Click(this);
+ }
+
+ virtual bool onClick(Click* click) {
+ SkScalar center = this->width()/2;
+ fSaturation = SkScalarDiv(click->fCurr.fX - center, center/2);
+ center = this->height()/2;
+ fAngle = SkScalarDiv(click->fCurr.fY - center, center) * 180;
+
+ fDX += click->fCurr.fX - click->fPrev.fX;
+ fDY += click->fCurr.fY - click->fPrev.fY;
+
+ fScale = SkScalarDiv(click->fCurr.fX, this->width());
+
+ this->inval(NULL);
+ return true;
+ return this->INHERITED::onClick(click);
+ }
+
+private:
+ SkScalar fDX, fDY;
+ typedef SkView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new ImageDirView; }
+static SkViewRegister reg(MyFactory);
+