Example usage for android.graphics Canvas drawOval

Introduction

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

Prototype

public void drawOval(@NonNull RectF oval, @NonNull Paint paint) 

Source Link

Document

Draw the specified oval using the specified paint.

Usage

From source file:Main.java

/**
 * clip source bitmap into a circle bitmap
 *
 * @param src     the source bitmap/*  www  . j  av a  2 s.  c o  m*/
 * @param recycle whether recycle the source bitmap
 * @param config  bitmap config
 * @return clipped  circle bitmap
 */
public static Bitmap createCircleBitmap(Bitmap src, boolean recycle, Bitmap.Config config) {
    if (src == null) {
        return null;
    }
    if (config == null) {
        config = Bitmap.Config.ARGB_8888;
    }
    Bitmap out = Bitmap.createBitmap(src.getWidth(), src.getHeight(), config);
    final Rect rect = new Rect(0, 0, Math.min(src.getWidth(), src.getHeight()),
            Math.min(src.getWidth(), src.getHeight()));
    Paint paint = new Paint();
    paint.setAntiAlias(true);
    Canvas canvas = new Canvas(out);
    canvas.drawARGB(0, 0, 0, 0);
    RectF rectF = new RectF(rect);
    canvas.drawOval(rectF, paint);

    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(src, rect, rect, paint);

    if (recycle) {
        src.recycle();
    }

    return out;

}

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From source file:Main.java

public static Bitmap toOvalBitmap(Bitmap bitmap) {
    Bitmap output = Bitmap.createBitmap(bitmap.getHeight(), bitmap.getHeight(), Config.ARGB_8888);
    Canvas canvas = new Canvas(output);
    Paint paint = new Paint();
    paint.setAntiAlias(true);//from w  w  w  .  ja  v a2  s  .  c  o  m
    Rect rect = new Rect(0, 0, bitmap.getHeight(), bitmap.getHeight());
    RectF rectF = new RectF(rect);

    canvas.drawOval(rectF, paint);
    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rectF, paint);
    return output;
}

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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  a  va 2 s .co  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);
    final RectF dst = new RectF(0, 0, targetWidth, targetHeight);
    canvas.drawOval(dst, 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);

    canvas.drawBitmap(input, src, dst, paint);
    return result;
}

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From source file:Main.java

public static Bitmap getCircularBitmap(Bitmap srcBitmap) {
    // Calculate the circular bitmap width with border
    int squareBitmapWidth = Math.min(srcBitmap.getWidth(), srcBitmap.getHeight());

    //int squareBitmapWidth = 300;

    // Initialize a new instance of Bitmap
    Bitmap dstBitmap = Bitmap.createBitmap(squareBitmapWidth, // Width
            squareBitmapWidth, // Height
            Bitmap.Config.ARGB_8888 // Config
    );/*from w  w  w. j a  v  a2 s  .c  o  m*/

    Canvas canvas = new Canvas(dstBitmap);

    // Initialize a new Paint instance
    Paint paint = new Paint();
    paint.setAntiAlias(true);

    Rect rect = new Rect(0, 0, squareBitmapWidth, squareBitmapWidth);

    RectF rectF = new RectF(rect);

    canvas.drawOval(rectF, paint);

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

    // Calculate the left and top of copied bitmap
    float left = (squareBitmapWidth - srcBitmap.getWidth()) / 2;
    float top = (squareBitmapWidth - srcBitmap.getHeight()) / 2;

    canvas.drawBitmap(srcBitmap, left, top, paint);

    srcBitmap.recycle();

    return dstBitmap;
}

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From source file:Main.java

public static Bitmap getCircleBitmap(Bitmap bitmap) {
    final Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
    final Canvas canvas = new Canvas(output);

    final int color = Color.WHITE;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
    final RectF rectF = new RectF(rect);

    paint.setAntiAlias(true);/*ww w.j  a  v  a  2s .c o  m*/
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawOval(rectF, paint);

    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);

    bitmap.recycle();

    return output;
}

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From source file:Main.java

public static Bitmap getCircleBitmap(Bitmap bitmap, boolean recycleable) {
    final Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
    final Canvas canvas = new Canvas(output);

    final int color = Color.RED;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
    final RectF rectF = new RectF(rect);

    paint.setAntiAlias(true);/* w  ww . java  2  s. c  o  m*/
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawOval(rectF, paint);

    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);
    if (recycleable) {
        bitmap.recycle();
    }
    return output;
}

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From source file:Main.java

public static Bitmap circleBitmap(Bitmap source, boolean recycle) {
    if (source == null) {
        return null;
    }/*from   w w w.  j  a va2  s .com*/

    // Create custom bitmap
    Bitmap output = Bitmap.createBitmap(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    // Compute sizes
    final int color = Color.RED;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, source.getWidth(), source.getHeight());
    final RectF rectF = new RectF(rect);

    paint.setAntiAlias(true);
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawOval(rectF, paint);

    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(source, rect, rect, paint);

    if (recycle) {
        source.recycle();
    }

    return output;
}

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From source file:Main.java

public static Bitmap getCircularBitmap(Bitmap bm) {
    int size = 192;

    Bitmap bitmap = ThumbnailUtils.extractThumbnail(bm, size, size);

    Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);

    Canvas canvas = new Canvas(output);

    final int color = 0xffff0000;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
    final RectF rectF = new RectF(rect);

    paint.setAntiAlias(true);//from   w  w  w . ja v  a 2 s .  c  o m
    paint.setDither(true);
    paint.setFilterBitmap(true);
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawOval(rectF, paint);

    paint.setColor(Color.BLUE);
    paint.setStyle(Paint.Style.STROKE);
    paint.setStrokeWidth((float) 4);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);

    return output;
}

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From source file:csci310.parkhere.ui.fragments.PublicProfileFragment.java

public static Bitmap getRoundedBitmap(Bitmap bitmap) {
    final Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
    final Canvas canvas = new Canvas(output);

    final int color = Color.RED;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
    final RectF rectF = new RectF(rect);

    paint.setAntiAlias(true);/*from ww w .j  av a2s. c  o  m*/
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawOval(rectF, paint);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);

    bitmap.recycle();

    return output;
}

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From source file:ar.uba.fi.splitapp.MockServer.java

private static Bitmap getCircleBitmap(Bitmap bitmap) {
    final Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
    final Canvas canvas = new Canvas(output);

    final int color = Color.RED;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
    final RectF rectF = new RectF(rect);

    paint.setAntiAlias(true);/*from  w w  w.  j a va  2 s.co m*/
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawOval(rectF, paint);

    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);

    bitmap.recycle();

    return output;
}

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