Example usage for android.graphics PorterDuffXfermode PorterDuffXfermode

Introduction

In this page you can find the example usage for android.graphics PorterDuffXfermode PorterDuffXfermode.

Prototype

public PorterDuffXfermode(PorterDuff.Mode mode) 

Source Link

Document

Create an xfermode that uses the specified porter-duff mode.

Usage

From source file:Main.java

/**
 * cut a circle from a bitmap// w  w w  .  j a v  a  2 s  .  c  o  m
 *
 * @param picturePath complete path name for the file.
 * @param destCube the cube dimension of dest bitmap
 * @return the bitmap
 */
public static Bitmap cutCircleFromBitmap(String picturePath, int destCube) {
    BitmapFactory.Options opts = new BitmapFactory.Options();

    opts.inDither = false; //Disable Dithering mode
    opts.inPurgeable = true; //Tell to gc that whether it needs free memory, the Bitmap can be cleared
    opts.inInputShareable = true; //Which kind of reference will be used to recover the Bitmap data after being clear, when it will be used in the future
    opts.inTempStorage = new byte[32 * 1024];

    Bitmap bitmapImg = BitmapFactory.decodeFile(picturePath, opts);

    int cube = destCube;

    if (bitmapImg == null)
        return null;

    int smallest = Math.min(bitmapImg.getWidth(), bitmapImg.getHeight());

    Bitmap output = Bitmap.createBitmap(cube, cube, Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    final int color = 0xff424242;
    final Paint paint = new Paint();

    int left = (int) ((bitmapImg.getWidth() - smallest) * 0.5);
    int top = (int) ((bitmapImg.getHeight() - smallest) * 0.5);

    final Rect rectSrc = new Rect(left, top, left + smallest, top + smallest);
    final Rect rectDest = new Rect(0, 0, cube, cube);

    paint.setAntiAlias(true);

    canvas.drawARGB(0, 0, 0, 0);

    paint.setColor(color);

    canvas.drawCircle(cube / 2, cube / 2, cube / 2, paint);

    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));

    canvas.drawBitmap(bitmapImg, rectSrc, rectDest, paint);

    bitmapImg.recycle();

    return output;
}

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From source file:Main.java

/**
 * This method takes a square bitmap and clips it into a circle
 *
 * @param bitmap : the image to clip//ww  w . ja v  a  2  s  . co m
 * @return the clipped bitmap
 */
public static Bitmap getCroppedBitmap(Bitmap bitmap) {
    Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    final int color = 0xff424242;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());

    paint.setAntiAlias(true);
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    // canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
    canvas.drawCircle(bitmap.getWidth() / 2, bitmap.getHeight() / 2, bitmap.getWidth() / 2, paint);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);
    //Bitmap _bmp = Bitmap.createScaledBitmap(output, 60, 60, false);
    //return _bmp;
    return output;
}

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From source file:Main.java

/**
 * Frames the input bitmap in a circle./* w  ww .j  ava2 s.  c  o  m*/
 */
public static Bitmap frameBitmapInCircle(Bitmap input) {
    if (input == null) {
        return null;
    }

    // Crop the image if not squared.
    int inputWidth = input.getWidth();
    int inputHeight = input.getHeight();
    int targetX, targetY, targetSize;
    if (inputWidth >= inputHeight) {
        targetX = inputWidth / 2 - inputHeight / 2;
        targetY = 0;
        targetSize = inputHeight;
    } else {
        targetX = 0;
        targetY = inputHeight / 2 - inputWidth / 2;
        targetSize = inputWidth;
    }

    // Create an output bitmap and a canvas to draw on it.
    Bitmap output = Bitmap.createBitmap(targetSize, targetSize, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    // Create a black paint to draw the mask.
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setColor(Color.BLACK);

    // Draw a circle.
    canvas.drawCircle(targetSize / 2, targetSize / 2, targetSize / 2, paint);

    // Replace the black parts of the mask with the input image.
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(input, targetX /* left */, targetY /* top */, paint);

    return output;
}

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From source file:Main.java

public static Bitmap createReflectionImageWithOrigin(Bitmap bitmap) {
    final int reflectionGap = 4;
    int w = bitmap.getWidth();
    int h = bitmap.getHeight();
    Matrix matrix = new Matrix();
    matrix.preScale(1, -1);//  ww w . ja  v a2  s  .c  o m
    Bitmap reflectionImage = Bitmap.createBitmap(bitmap, 0, h / 2, w, h / 2, matrix, false);
    Bitmap bitmapWithReflection = Bitmap.createBitmap(w, (h + h / 2), Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmapWithReflection);
    canvas.drawBitmap(bitmap, 0, 0, null);
    Paint deafalutPaint = new Paint();
    canvas.drawRect(0, h, w, h + reflectionGap, deafalutPaint);
    canvas.drawBitmap(reflectionImage, 0, h + reflectionGap, null);
    Paint paint = new Paint();
    LinearGradient shader = new LinearGradient(0, bitmap.getHeight(), 0,
            bitmapWithReflection.getHeight() + reflectionGap, 0x70ffffff, 0x00ffffff, TileMode.CLAMP);
    paint.setShader(shader);
    // Set the Transfer mode to be porter duff and destination in
    paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));
    // Draw a rectangle using the paint with our linear gradient
    canvas.drawRect(0, h, w, bitmapWithReflection.getHeight() + reflectionGap, paint);
    return bitmapWithReflection;
}

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From source file:Main.java

public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, int pixels) {
    if (bitmap == null)
        return null;
    Bitmap output;// ww w. java  2  s .c  o m
    try {
        output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(output);

        final int color = 0xff424242;
        final Paint paint = new Paint();
        final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
        final RectF rectF = new RectF(rect);
        final float roundPx = pixels;

        paint.setAntiAlias(true);
        canvas.drawARGB(0, 0, 0, 0);

        paint.setColor(color);
        canvas.drawRoundRect(rectF, roundPx, roundPx, paint);

        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
        canvas.drawBitmap(bitmap, rect, rect, paint);
    } catch (Exception ex) {

        //adding as a precaution because finding a few crashes in bitmap modification
        return bitmap;
    }
    return output;
}

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From source file:Main.java

public static Bitmap createReflectionBitmap(Bitmap bitmap) {
    final int reflectionGap = 4;
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();

    Matrix matrix = new Matrix();
    matrix.preScale(1, -1);//from   ww  w  .j a v  a2s. co  m

    Bitmap reflectionImage = Bitmap.createBitmap(bitmap, 0, height / 2, width, height / 2, matrix, false);

    Bitmap bitmapWithReflection = Bitmap.createBitmap(width, (height + height / 2), Config.ARGB_8888);

    Canvas canvas = new Canvas(bitmapWithReflection);
    canvas.drawBitmap(bitmap, 0, 0, null);
    Paint deafalutPaint = new Paint();
    canvas.drawRect(0, height, width, height + reflectionGap, deafalutPaint);

    canvas.drawBitmap(reflectionImage, 0, height + reflectionGap, null);

    Paint paint = new Paint();
    LinearGradient shader = new LinearGradient(0, bitmap.getHeight(), 0,
            bitmapWithReflection.getHeight() + reflectionGap, 0x70ffffff, 0x00ffffff, Shader.TileMode.CLAMP);
    paint.setShader(shader);
    // Set the Transfer mode to be porter duff and destination in
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
    // Draw a rectangle using the paint with our linear gradient
    canvas.drawRect(0, height, width, bitmapWithReflection.getHeight() + reflectionGap, paint);

    return bitmapWithReflection;
}

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From source file:Main.java

public static Bitmap createReflectionBitmap(Bitmap bitmap) {
    final int reflectionGap = 4;
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();

    Matrix matrix = new Matrix();
    matrix.preScale(1, -1);//from   w w  w  . j  a  va  2  s  .  c  o m

    Bitmap reflectionImage = Bitmap.createBitmap(bitmap, 0, height / 2, width, height / 2, matrix, false);

    Bitmap bitmapWithReflection = Bitmap.createBitmap(width, (height + height / 2), Config.ARGB_8888);

    Canvas canvas = new Canvas(bitmapWithReflection);
    canvas.drawBitmap(bitmap, 0, 0, null);
    Paint deafalutPaint = new Paint();
    canvas.drawRect(0, height, width, height + reflectionGap, deafalutPaint);

    canvas.drawBitmap(reflectionImage, 0, height + reflectionGap, null);

    Paint paint = new Paint();
    LinearGradient shader = new LinearGradient(0, bitmap.getHeight(), 0,
            bitmapWithReflection.getHeight() + reflectionGap, 0x70ffffff, 0x00ffffff, TileMode.CLAMP);
    paint.setShader(shader);
    // Set the Transfer mode to be porter duff and destination in
    paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));
    // Draw a rectangle using the paint with our linear gradient
    canvas.drawRect(0, height, width, bitmapWithReflection.getHeight() + reflectionGap, paint);

    return bitmapWithReflection;
}

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From source file:Main.java

public static Bitmap toRoundBitmap(Bitmap bitmap, int round) {
    if (bitmap == null)
        return null;
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    float roundPx;
    float left, top, right, bottom, dst_left, dst_top, dst_right, dst_bottom;
    if (width <= height) {
        if (round != 0)
            roundPx = round;/*from  ww w  .j  a v  a  2 s.  c o m*/
        else
            roundPx = width / 2;
        top = 0;
        bottom = width;
        left = 0;
        right = width;
        height = width;
        dst_left = 0;
        dst_top = 0;
        dst_right = width;
        dst_bottom = width;
    } else {
        if (round != 0)
            roundPx = round;
        else
            roundPx = height / 2;
        float clip = (width - height) / 2;
        left = clip;
        right = width - clip;
        top = 0;
        bottom = height;
        width = height;
        dst_left = 0;
        dst_top = 0;
        dst_right = height;
        dst_bottom = height;
    }

    Bitmap output = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    final int color = 0xff424242;
    final Paint paint = new Paint();

    final Rect src = new Rect((int) left, (int) top, (int) right, (int) bottom);
    final Rect dst = new Rect((int) dst_left, (int) dst_top, (int) dst_right, (int) dst_bottom);
    final RectF rectF = new RectF(dst);

    paint.setAntiAlias(true);
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
    canvas.drawBitmap(bitmap, src, dst, paint);
    return output;
}

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From source file:Main.java

public static Bitmap createReflectedBitmap(Bitmap srcBitmap, float reflectHeight) {
    if (null == srcBitmap) {
        return null;
    }//w  w  w . j a va 2  s .co  m

    int srcWidth = srcBitmap.getWidth();
    int srcHeight = srcBitmap.getHeight();
    int reflectionWidth = srcBitmap.getWidth();
    int reflectionHeight = reflectHeight == 0 ? srcHeight / 3 : (int) (reflectHeight * srcHeight);

    if (0 == srcWidth || srcHeight == 0) {
        return null;
    }

    // The matrix
    Matrix matrix = new Matrix();
    matrix.preScale(1, -1);

    try {
        // The reflection bitmap, width is same with original's
        Bitmap reflectionBitmap = Bitmap.createBitmap(srcBitmap, 0, srcHeight - reflectionHeight,
                reflectionWidth, reflectionHeight, matrix, false);

        if (null == reflectionBitmap) {
            return null;
        }

        Canvas canvas = new Canvas(reflectionBitmap);

        Paint paint = new Paint();
        paint.setAntiAlias(true);

        LinearGradient shader = new LinearGradient(0, 0, 0, reflectionBitmap.getHeight(), 0x70FFFFFF,
                0x00FFFFFF, TileMode.MIRROR);
        paint.setShader(shader);

        paint.setXfermode(new PorterDuffXfermode(android.graphics.PorterDuff.Mode.DST_IN));

        // Draw the linear shader.
        canvas.drawRect(0, 0, reflectionBitmap.getWidth(), reflectionBitmap.getHeight(), paint);

        return reflectionBitmap;
    } catch (Exception e) {
        e.printStackTrace();
    }

    return null;
}

---

From source file:Main.java

/**
 * Given an input bitmap, scales it to the given width/height and makes it round.
 *
 * @param input {@link Bitmap} to scale and crop
 * @param targetWidth desired output width
 * @param targetHeight desired output height
 * @return output bitmap scaled to the target width/height and cropped to an oval. The
 *         cropping algorithm will try to fit as much of the input into the output as possible,
 *         while preserving the target width/height ratio.
 *///from   w  ww  .j  av  a 2 s.  c  o m
public static Bitmap getRoundedBitmap(Bitmap input, int targetWidth, int targetHeight) {
    if (input == null) {
        return null;
    }
    final Bitmap.Config inputConfig = input.getConfig();
    final Bitmap result = Bitmap.createBitmap(targetWidth, targetHeight,
            inputConfig != null ? inputConfig : Bitmap.Config.ARGB_8888);
    final Canvas canvas = new Canvas(result);
    final Paint paint = new Paint();
    canvas.drawARGB(0, 0, 0, 0);
    paint.setAntiAlias(true);
    canvas.drawOval(0, 0, targetWidth, targetHeight, paint);

    // Specifies that only pixels present in the destination (i.e. the drawn oval) should
    // be overwritten with pixels from the input bitmap.
    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));

    final int inputWidth = input.getWidth();
    final int inputHeight = input.getHeight();

    // Choose the largest scale factor that will fit inside the dimensions of the
    // input bitmap.
    final float scaleBy = Math.min((float) inputWidth / targetWidth, (float) inputHeight / targetHeight);

    final int xCropAmountHalved = (int) (scaleBy * targetWidth / 2);
    final int yCropAmountHalved = (int) (scaleBy * targetHeight / 2);

    final Rect src = new Rect(inputWidth / 2 - xCropAmountHalved, inputHeight / 2 - yCropAmountHalved,
            inputWidth / 2 + xCropAmountHalved, inputHeight / 2 + yCropAmountHalved);

    final RectF dst = new RectF(0, 0, targetWidth, targetHeight);
    canvas.drawBitmap(input, src, dst, paint);
    return result;
}

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