Example usage for android.graphics RectF RectF

Introduction

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

Prototype

public RectF(float left, float top, float right, float bottom) 

Source Link

Document

Create a new rectangle with the specified coordinates.

Usage

From source file:Main.java

public static Bitmap createRoundedBitmap(Context context, Bitmap bitmap, int radiusDP) {
    Bitmap bmp;/*from w w w  .  j  av  a  2s.c o  m*/

    bmp = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
    BitmapShader shader = new BitmapShader(bitmap, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP);

    float radius = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, radiusDP,
            context.getResources().getDisplayMetrics());
    Canvas canvas = new Canvas(bmp);
    Paint paint = new Paint();
    paint.setAntiAlias(true);
    paint.setShader(shader);

    RectF rect = new RectF(0, 0, bitmap.getWidth(), bitmap.getHeight());
    canvas.drawRoundRect(rect, radius, radius, paint);

    return bmp;
}

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From source file:Main.java

public static Bitmap roundCorners(final Bitmap bitmap, final int radiusX, final int radiusY) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();

    Paint paint = new Paint();
    paint.setAntiAlias(true);/*from   ww  w .j  ava2s.  c  o m*/
    paint.setColor(Color.WHITE);

    Bitmap clipped = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    Canvas canvas = new Canvas(clipped);
    canvas.drawRoundRect(new RectF(0, 0, width, height), radiusX, radiusY, paint);
    paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));

    Bitmap rounded = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    canvas = new Canvas(rounded);
    canvas.drawBitmap(bitmap, 0, 0, null);
    canvas.drawBitmap(clipped, 0, 0, paint);

    return rounded;
}

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From source file:Main.java

static private Bitmap smallCoverPostProc(Bitmap smallBitmap) {
    try {//from  w  ww.jav a 2s  .c o m
        Bitmap smallBitmapPostProc = Bitmap.createBitmap(smallBitmap.getWidth(), smallBitmap.getHeight(),
                Bitmap.Config.RGB_565);
        Canvas canvas = new Canvas();
        canvas.setBitmap(smallBitmapPostProc);
        Paint paint = new Paint();
        paint.setAntiAlias(true);
        Bitmap bitmapToShade = Bitmap.createBitmap(smallBitmap, 2, 2, smallBitmap.getWidth() - 4,
                smallBitmap.getHeight() - 4);
        BitmapShader bmShader = new BitmapShader(bitmapToShade, TileMode.CLAMP, TileMode.CLAMP);
        paint.setShader(bmShader);
        canvas.drawRoundRect(new RectF(2, 2, smallBitmap.getWidth() - 2, smallBitmap.getHeight() - 2), 4, 4,
                paint);
        return smallBitmapPostProc;
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

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From source file:Main.java

public static Bitmap scale(Bitmap b, int reqWidth, int reqHeight) {
    Matrix m = new Matrix();
    if (b.getWidth() > b.getHeight()) {
        reqWidth = (int) (reqHeight * (1.0 * b.getWidth() / b.getHeight()));
    } else {/*from  www  .  j  a v a2 s  .  co  m*/
        reqHeight = (int) (reqWidth * (1.0 * b.getHeight() / b.getWidth()));
    }
    m.setRectToRect(new RectF(0, 0, b.getWidth(), b.getHeight()), new RectF(0, 0, reqWidth, reqHeight),
            Matrix.ScaleToFit.CENTER);
    return Bitmap.createBitmap(b, 0, 0, b.getWidth(), b.getHeight(), m, true);
}

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From source file:Main.java

public static Bitmap getRoundBitmap(Bitmap bmp, float roundDP) {
    //      roundDP *= Constants.screen_density;
    Bitmap bmpOut = Bitmap.createBitmap(bmp.getWidth(), bmp.getHeight(), Config.ARGB_8888);
    Canvas c = new Canvas(bmpOut);
    final Paint p = new Paint();
    final RectF rectF = new RectF(0, 0, bmp.getWidth(), bmp.getHeight());

    p.setAntiAlias(true);/*from  w ww  .ja v  a  2  s  . co m*/
    c.drawARGB(0, 0, 0, 0);
    p.setColor(Color.BLACK);
    c.drawRoundRect(rectF, roundDP, roundDP, p);
    p.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    c.drawBitmap(bmp, 0, 0, p);
    return bmpOut;
}

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From source file:Main.java

private static Rect calculateTapArea(float x, float y, int width, int height, float coefficient) {
    float focusAreaSize = 200;
    int areaSize = Float.valueOf(focusAreaSize * coefficient).intValue();
    int centerX = (int) ((x / width) * 2000 - 1000);
    int centerY = (int) ((y / height) * 2000 - 1000);
    int left = clamp(centerX - (areaSize / 2), -1000, 1000);
    int top = clamp(centerY - (areaSize / 2), -1000, 1000);
    RectF rectF = new RectF(left, top, left + areaSize, top + areaSize);
    return new Rect(Math.round(rectF.left), Math.round(rectF.top), Math.round(rectF.right),
            Math.round(rectF.bottom));
}

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From source file:Main.java

public static void drawWallpaperSelectionFrame(Canvas canvas, RectF cropBounds, float spotX, float spotY,
        Paint p, Paint shadowPaint) {
    float sx = cropBounds.width() * spotX;
    float sy = cropBounds.height() * spotY;
    float cx = cropBounds.centerX();
    float cy = cropBounds.centerY();
    RectF r1 = new RectF(cx - sx / 2, cy - sy / 2, cx + sx / 2, cy + sy / 2);
    float temp = sx;
    sx = sy;/*from w w w  .j  a v a 2  s.  co m*/
    sy = temp;
    RectF r2 = new RectF(cx - sx / 2, cy - sy / 2, cx + sx / 2, cy + sy / 2);
    canvas.save();
    canvas.clipRect(cropBounds);
    canvas.clipRect(r1, Region.Op.DIFFERENCE);
    canvas.clipRect(r2, Region.Op.DIFFERENCE);
    canvas.drawPaint(shadowPaint);
    canvas.restore();
    Path path = new Path();
    path.moveTo(r1.left, r1.top);
    path.lineTo(r1.right, r1.top);
    path.moveTo(r1.left, r1.top);
    path.lineTo(r1.left, r1.bottom);
    path.moveTo(r1.left, r1.bottom);
    path.lineTo(r1.right, r1.bottom);
    path.moveTo(r1.right, r1.top);
    path.lineTo(r1.right, r1.bottom);
    path.moveTo(r2.left, r2.top);
    path.lineTo(r2.right, r2.top);
    path.moveTo(r2.right, r2.top);
    path.lineTo(r2.right, r2.bottom);
    path.moveTo(r2.left, r2.bottom);
    path.lineTo(r2.right, r2.bottom);
    path.moveTo(r2.left, r2.top);
    path.lineTo(r2.left, r2.bottom);
    canvas.drawPath(path, p);
}

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From source file:Main.java

/**
 * Creates a mutable bitmap from subset of source bitmap, transformed by the optional matrix.
 *//*  w w w  . j av  a 2 s  .  co m*/
private static Bitmap createBitmap(Bitmap source, int x, int y, int width, int height, Matrix m) {
    // Re-implement Bitmap createBitmap() to always return a mutable bitmap.
    Canvas canvas = new Canvas();

    Bitmap bitmap;
    Paint paint;
    if ((m == null) || m.isIdentity()) {
        bitmap = Bitmap.createBitmap(width, height, source.getConfig());
        paint = null;
    } else {
        RectF rect = new RectF(0, 0, width, height);
        m.mapRect(rect);
        bitmap = Bitmap.createBitmap(Math.round(rect.width()), Math.round(rect.height()), source.getConfig());

        canvas.translate(-rect.left, -rect.top);
        canvas.concat(m);

        paint = new Paint(Paint.FILTER_BITMAP_FLAG);
        if (!m.rectStaysRect()) {
            paint.setAntiAlias(true);
        }
    }
    bitmap.setDensity(source.getDensity());
    canvas.setBitmap(bitmap);

    Rect srcBounds = new Rect(x, y, x + width, y + height);
    RectF dstBounds = new RectF(0, 0, width, height);
    canvas.drawBitmap(source, srcBounds, dstBounds, paint);
    return bitmap;
}

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From source file:Main.java

public static Bitmap scaleCenterCrop(Bitmap source, int newHeight, int newWidth) {
    int sourceWidth = source.getWidth();
    int sourceHeight = source.getHeight();

    // Compute the scaling factors to fit the new height and width, respectively.
    // To cover the final image, the final scaling will be the bigger
    // of these two.
    float xScale = (float) newWidth / sourceWidth;
    float yScale = (float) newHeight / sourceHeight;
    float scale = Math.max(xScale, yScale);

    // Now get the size of the source bitmap when scaled
    float scaledWidth = scale * sourceWidth;
    float scaledHeight = scale * sourceHeight;

    // Let's find out the upper left coordinates if the scaled bitmap
    // should be centered in the new size give by the parameters
    float left = (newWidth - scaledWidth) / 2;
    float top = (newHeight - scaledHeight) / 2;

    // The target rectangle for the new, scaled version of the source bitmap will now
    // be/*from   w  ww.  j  a  va 2 s . c  o  m*/
    RectF targetRect = new RectF(left, top, left + scaledWidth, top + scaledHeight);

    // Finally, we create a new bitmap of the specified size and draw our new,
    // scaled bitmap onto it.
    Bitmap dest = Bitmap.createBitmap(newWidth, newHeight, CONFIG);
    Canvas canvas = new Canvas(dest);
    Paint paint = new Paint();
    paint.setAntiAlias(true);
    paint.setFilterBitmap(true);
    paint.setDither(true);
    canvas.drawBitmap(source, null, targetRect, paint);

    return dest;
}

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From source file:Main.java

/**
 * Convert touch position x:y to {@link Camera.Area} position -1000:-1000 to 1000:1000.
 *//*from w ww. j a  v  a  2 s.  com*/
private static Rect calculateTapArea(Camera camera, float x, float y, float coefficient) {
    float focusAreaSize = 300;
    int areaSize = Float.valueOf(focusAreaSize * coefficient).intValue();

    int centerX = (int) (x / getResolution(camera).width - 1000);
    int centerY = (int) (y / getResolution(camera).height - 1000);

    int left = clamp(centerX - areaSize / 2, -1000, 1000);
    int top = clamp(centerY - areaSize / 2, -1000, 1000);

    RectF rectF = new RectF(left, top, left + areaSize, top + areaSize);

    return new Rect(Math.round(rectF.left), Math.round(rectF.top), Math.round(rectF.right),
            Math.round(rectF.bottom));
}

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