grab from latest android

git-svn-id: http://skia.googlecode.com/svn/trunk@27 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 319 insertions, 0 deletions

diff --git a/samplecode/SampleImageDir.cpp b/samplecode/SampleImageDir.cpp
new file mode 100644
index 0000000000..2c55ab05fa
--- /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);
+