java类android.graphics.Picture的实例源码

public boolean checkRenderView(WebView view)
{
    if(state == null)
    {
        setBitmap(view);
        return false;
    }
    else
    {
        Picture p = view.capturePicture();
        Bitmap newState = Bitmap.createBitmap(p.getWidth(), p.getHeight(), Bitmap.Config.ARGB_8888);
        boolean result = newState.equals(state);
        newState.recycle();
        return result;
    }
}

public static Picture createCompassRosePicture(final int mCompassRadius, final float displayDensity, final int northTriangleColor, final int southTriangleColor, final int dotMiddleColor) {
    // Paint design of north triangle (it's common to paint north in red
    // color)
    final Paint northPaint = new Paint();
    northPaint.setColor(northTriangleColor);
    northPaint.setAntiAlias(true);
    northPaint.setStyle(Style.FILL);
    northPaint.setAlpha(220);

    // Paint design of south triangle (black)
    final Paint southPaint = new Paint();
    southPaint.setColor(southTriangleColor);
    southPaint.setAntiAlias(true);
    southPaint.setStyle(Style.FILL);
    southPaint.setAlpha(220);

    // Create a little white dot in the middle of the compass rose
    final Paint centerPaint = new Paint();
    centerPaint.setColor(dotMiddleColor);
    centerPaint.setAntiAlias(true);
    centerPaint.setStyle(Style.FILL);
    centerPaint.setAlpha(220);
    // Create Compass
    return createCompassRosePicture(mCompassRadius, displayDensity, northPaint, southPaint, centerPaint);
}

public boolean checkRenderView(WebView view)
{
    if(state == null)
    {
        setBitmap(view);
        return false;
    }
    else
    {
        Picture p = view.capturePicture();
        Bitmap newState = Bitmap.createBitmap(p.getWidth(), p.getHeight(), Bitmap.Config.ARGB_8888);
        boolean result = newState.equals(state);
        newState.recycle();
        return result;
    }
}

/**
 * 截取所有网页内容到 Bitmap
 *
 * @return Bitmap
 */
Bitmap genCaptureBitmap() throws OutOfMemoryError {
    // @todo Future versions of WebView may not support use on other threads.
    try {
        Picture picture = getWebView().capturePicture();
        int height = picture.getHeight(), width = picture.getWidth();
        if (height == 0 || width == 0) {
            return null;
        }
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        picture.draw(canvas);
        return bitmap;
    } catch (NullPointerException e) {
        return null;
    }
}

@Override
public Bitmap onLoadBitmap(final Config pBitmapConfig) {
    final Picture picture = this.mPicture;
    if(picture == null) {
        Debug.e("Failed loading Bitmap in " + this.getClass().getSimpleName() + ".");
        return null;
    }

    final Bitmap bitmap = Bitmap.createBitmap(this.mTextureWidth, this.mTextureHeight, pBitmapConfig);
    final Canvas canvas = new Canvas(bitmap);

    final float scaleX = (float)this.mTextureWidth / this.mPicture.getWidth();
    final float scaleY = (float)this.mTextureHeight / this.mPicture.getHeight();
    canvas.scale(scaleX, scaleY, 0, 0);

    picture.draw(canvas);

    return bitmap;
}

private static SVG parse(InputStream in, Integer searchColor, Integer replaceColor, boolean whiteMode,
                             int targetWidth, int targetHeight) throws SVGParseException {
//        Util.debug("Parsing SVG...");
        try {
            long start = System.currentTimeMillis();
            SAXParserFactory spf = SAXParserFactory.newInstance();
            SAXParser sp = spf.newSAXParser();
            XMLReader xr = sp.getXMLReader();
            final Picture picture = new Picture();
            SVGHandler handler = new SVGHandler(picture, targetWidth, targetHeight);
            handler.setColorSwap(searchColor, replaceColor);
            handler.setWhiteMode(whiteMode);
            xr.setContentHandler(handler);
            xr.parse(new InputSource(in));
//        Util.debug("Parsing complete in " + (System.currentTimeMillis() - start) + " millis.");
            SVG result = new SVG(picture, handler.bounds);
            // Skip bounds if it was an empty pic
            if (!Float.isInfinite(handler.limits.top)) {
                result.setLimits(handler.limits);
            }
            return result;
        } catch (Exception e) {
            throw new SVGParseException(e);
        }
    }

private static SVG parse(InputStream in, Integer searchColor, Integer replaceColor, boolean whiteMode,
                             int targetWidth, int targetHeight) throws SVGParseException {
//        Util.debug("Parsing SVG...");
        try {
            long start = System.currentTimeMillis();
            SAXParserFactory spf = SAXParserFactory.newInstance();
            SAXParser sp = spf.newSAXParser();
            XMLReader xr = sp.getXMLReader();
            final Picture picture = new Picture();
            SVGHandler handler = new SVGHandler(picture, targetWidth, targetHeight);
            handler.setColorSwap(searchColor, replaceColor);
            handler.setWhiteMode(whiteMode);
            xr.setContentHandler(handler);
            xr.parse(new InputSource(in));
//        Util.debug("Parsing complete in " + (System.currentTimeMillis() - start) + " millis.");
            SVG result = new SVG(picture, handler.bounds);
            // Skip bounds if it was an empty pic
            if (!Float.isInfinite(handler.limits.top)) {
                result.setLimits(handler.limits);
            }
            return result;
        } catch (Exception e) {
            throw new SVGParseException(e);
        }
    }

@Before
public void setUp() throws Exception {
    canvas = mock(Canvas.class);
    PowerMockito.whenNew(Canvas.class).withNoArguments().thenReturn(canvas);

    picture = mock(Picture.class);
    PowerMockito.whenNew(Picture.class).withNoArguments().thenReturn(picture);
    when(picture.beginRecording(anyInt(), anyInt())).thenReturn(canvas);

    paint = mock(Paint.class);
    PowerMockito.whenNew(Paint.class).withNoArguments().thenReturn(paint);

    mockStatic(Log.class);

    matrix = mock(android.graphics.Matrix.class);
    PowerMockito.whenNew(android.graphics.Matrix.class).withNoArguments().thenReturn(matrix);

    path = mock(Path.class);
    PowerMockito.whenNew(Path.class).withNoArguments().thenReturn(path);
}

@Override
public Bitmap onLoadBitmap(final Config pBitmapConfig) {
    final Picture picture = this.mPicture;
    if (picture == null) {
        Debug.e("Failed loading Bitmap in " + this.getClass().getSimpleName() + ".");
        return null;
    }

    final Bitmap bitmap = Bitmap.createBitmap(this.mTextureWidth, this.mTextureHeight, pBitmapConfig);
    final Canvas canvas = new Canvas(bitmap);

    final float scaleX = (float)this.mTextureWidth / this.mPicture.getWidth();
    final float scaleY = (float)this.mTextureHeight / this.mPicture.getHeight();
    canvas.scale(scaleX, scaleY, 0, 0);

    picture.draw(canvas);

    return bitmap;
}

private void delaySetup(){
    Log.i("WebImage","delaySetup");
    wv.setPictureListener(new PictureListener() {


        @Override
        public void onNewPicture(WebView view, Picture picture) {
            Log.i("WebImage","onNewPicture");
            wv.setPictureListener(null);
            setup();
        }


    });

    //wv.setInitialScale(100);
    wv.loadData("<html></html>", "text/html", "utf-8");
    wv.setBackgroundColor(color);

}