Example usage for android.graphics Canvas drawBitmap

Introduction

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

Prototype

public void drawBitmap(@NonNull Bitmap bitmap, @Nullable Rect src, @NonNull Rect dst, @Nullable Paint paint) 

Source Link

Document

Draw the specified bitmap, scaling/translating automatically to fill the destination rectangle.

Usage

From source file:Main.java

/**
 * draw the image to viewBitmap in fill mode.
 * @param viewBitmap Bitmap to be displayed on the device.
 * @param bitmap Bitmap image.//  w  w  w. j  a v a 2s. co m
 */
public static void drawImageForFillsMode(final Bitmap viewBitmap, final Bitmap bitmap) {

    float getSizeW = bitmap.getWidth();
    float getSizeH = bitmap.getHeight();

    Canvas canvas = new Canvas(viewBitmap);

    final int width = viewBitmap.getWidth();
    final int height = viewBitmap.getHeight();
    for (int drawY = 0; drawY <= height; drawY += getSizeH) {
        for (int drawX = 0; drawX <= width; drawX += getSizeW) {
            canvas.drawBitmap(bitmap, drawX, drawY, null);
        }
    }
}

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From source file:Main.java

/**
 * Use touch-icon or higher-resolution favicon and round the corners.
 * @param context    Context used to get resources.
 * @param touchIcon  Touch icon bitmap.//  w w w  .  ja v a2 s.c  o m
 * @param canvas     Canvas that holds the touch icon.
 */
private static void drawTouchIconToCanvas(Context context, Bitmap touchIcon, Canvas canvas) {
    Rect iconBounds = new Rect(0, 0, canvas.getWidth(), canvas.getHeight());
    Rect src = new Rect(0, 0, touchIcon.getWidth(), touchIcon.getHeight());
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setFilterBitmap(true);
    canvas.drawBitmap(touchIcon, src, iconBounds, paint);
    // Convert dp to px.
    int borderRadii = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, TOUCHICON_BORDER_RADII,
            context.getResources().getDisplayMetrics());
    Path path = new Path();
    path.setFillType(Path.FillType.INVERSE_WINDING);
    RectF rect = new RectF(iconBounds);
    rect.inset(INSET_DIMENSION_FOR_TOUCHICON, INSET_DIMENSION_FOR_TOUCHICON);
    path.addRoundRect(rect, borderRadii, borderRadii, Path.Direction.CW);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
    canvas.drawPath(path, paint);
}

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From source file:Main.java

static Bitmap generatorContactCountIcon(Context context, Bitmap icon) {
    int iconSize = (int) context.getResources().getDimension(android.R.dimen.app_icon_size);
    Bitmap contactIcon = Bitmap.createBitmap(iconSize, iconSize, Config.ARGB_8888);
    Canvas canvas = new Canvas(contactIcon);

    Paint iconPaint = new Paint();
    iconPaint.setDither(true);/*from   w  w  w.  j a  v  a2s. c om*/
    iconPaint.setFilterBitmap(true);
    Rect src = new Rect(0, 0, icon.getWidth(), icon.getHeight());
    Rect dst = new Rect(0, 0, iconSize, iconSize);
    canvas.drawBitmap(icon, src, dst, iconPaint);
    int contacyCount = 11;
    Paint countPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);
    countPaint.setColor(Color.RED);
    countPaint.setTextSize(20f);
    countPaint.setTypeface(Typeface.DEFAULT_BOLD);
    canvas.drawText(String.valueOf(contacyCount), iconSize - 18, 25, countPaint);
    return contactIcon;
}

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From source file:Main.java

public static final Bitmap complementedBitmapByColor(Bitmap bitmap, int color) {
    if (null == bitmap) {
        return null;
    }//from w  ww  .  j a  v a 2 s .  co m

    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    if (width == height) {
        return bitmap;
    }

    int len = width > height ? width : height;
    Bitmap output = Bitmap.createBitmap(len, len, Config.ARGB_8888);
    Canvas canvas = new Canvas(output);
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    // paint.setAlpha(0);
    paint.setColor(color);
    canvas.drawPaint(paint);

    if (width > height) {
        int devide = (width - height) / 2;
        canvas.drawBitmap(bitmap, 0, devide, paint_comm);
    } else {
        int devide = (height - width) / 2;
        canvas.drawBitmap(bitmap, devide, 0, paint_comm);
    }
    return output;
}

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From source file:com.kabootar.GlassMemeGenerator.ImageOverlay.java

public static Bitmap overlay(Bitmap image, String topCaption, String bottomCaption, Context baseContext)
        throws IOException, InterruptedException {

    Canvas graphics = new Canvas(image);
    graphics.drawBitmap(image, 0, 0, null);
    drawStringCentered(graphics, topCaption, image, true, baseContext);
    graphics.drawBitmap(image, 0, 0, null);
    drawStringCentered(graphics, bottomCaption, image, false, baseContext);
    return image;
}

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From source file:Main.java

public static final Bitmap grey(Bitmap bitmap) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    Bitmap greyBitmap = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    Canvas canvas = new Canvas(greyBitmap);
    Paint paint = new Paint();
    ColorMatrix colorMatrix = new ColorMatrix();
    colorMatrix.setSaturation(0);/* w  w  w  .  j  a  v a  2s.c om*/
    ColorMatrixColorFilter colorMatrixFilter = new ColorMatrixColorFilter(colorMatrix);
    paint.setColorFilter(colorMatrixFilter);
    canvas.drawBitmap(bitmap, 0, 0, paint);
    return greyBitmap;
}

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From source file:Main.java

public static Bitmap resizeAndCropCenterExt(Bitmap bitmap, int size, boolean recycle) {
    int w = bitmap.getWidth();
    int h = bitmap.getHeight();
    if (w == size && h == size)
        return bitmap;

    // scale the image so that the shorter side equals to the target;
    // the longer side will be center-cropped.
    float scale = (float) size / Math.min(w, h);

    int width = Math.round(scale * bitmap.getWidth());
    int height = Math.round(scale * bitmap.getHeight());
    if (width > height) {
        int largeSize = (int) (width <= size * 1.5 ? width : size * 1.5);
        Bitmap target = Bitmap.createBitmap(largeSize, size, getConfig(bitmap));
        Canvas canvas = new Canvas(target);
        canvas.translate((largeSize - width) / 2f, (size - height) / 2f);
        canvas.scale(scale, scale);/* w  ww.jav  a  2 s  . c o m*/
        Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
        canvas.drawBitmap(bitmap, 0, 0, paint);
        if (recycle)
            bitmap.recycle();
        return target;
    } else {
        int largeSize = (int) (height <= size * 1.5 ? height : size * 1.5);
        Bitmap target = Bitmap.createBitmap(size, largeSize, getConfig(bitmap));
        Canvas canvas = new Canvas(target);
        canvas.translate((size - width) / 2f, (largeSize - height) / 2f);
        canvas.scale(scale, scale);
        Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
        canvas.drawBitmap(bitmap, 0, 0, paint);
        if (recycle)
            bitmap.recycle();
        return target;
    }
}

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From source file:Main.java

private static void drawTouchIconToCanvas(Bitmap touchIcon, Canvas canvas, Rect iconBounds) {
    Rect src = new Rect(0, 0, touchIcon.getWidth(), touchIcon.getHeight());

    // Paint used for scaling the bitmap and drawing the rounded rect.
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setFilterBitmap(true);/*from   w w  w .j a  v  a 2  s . c om*/
    canvas.drawBitmap(touchIcon, src, iconBounds, paint);

    // Construct a path from a round rect. This will allow drawing with
    // an inverse fill so we can punch a hole using the round rect.
    Path path = new Path();
    path.setFillType(Path.FillType.INVERSE_WINDING);
    RectF rect = new RectF(iconBounds);
    rect.inset(1, 1);
    path.addRoundRect(rect, 8f, 8f, Path.Direction.CW);

    // Reuse the paint and clear the outside of the rectangle.
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
    canvas.drawPath(path, paint);
}

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From source file:Main.java

public static Bitmap getSaturationBitmap(Bitmap bitmap) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    Bitmap faceIconGreyBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(faceIconGreyBitmap);
    Paint paint = new Paint();
    ColorMatrix colorMatrix = new ColorMatrix();
    colorMatrix.setSaturation(0);//w w w  .ja v  a2 s.com
    ColorMatrixColorFilter colorMatrixFilter = new ColorMatrixColorFilter(colorMatrix);
    paint.setColorFilter(colorMatrixFilter);
    canvas.drawBitmap(bitmap, 0, 0, paint);
    return faceIconGreyBitmap;
}

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From source file:Main.java

/**
 * Crop bitmap image into a round shape/*from  w  w  w  .j  a v a 2  s .c  o m*/
 *
 * @param bitmap   the bitmap
 * @param diameter the diameter of the resulting image
 * @return the rounded bitmap
 */
private static Bitmap getRoundedShape(@NonNull Bitmap bitmap, int diameter) {

    Bitmap resultBitmap = Bitmap.createBitmap(diameter, diameter, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(resultBitmap);
    Path path = new Path();
    path.addCircle(((float) diameter - 1) / 2, ((float) diameter - 1) / 2, (((float) diameter) / 2),
            Path.Direction.CCW);

    canvas.clipPath(path);
    resultBitmap.setHasAlpha(true);
    canvas.drawBitmap(bitmap, new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()),
            new Rect(0, 0, diameter, diameter), null);
    return resultBitmap;
}

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