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

public static Bitmap cropWithCanvas(Bitmap bitmap, Rect cropRect) {
    Rect destRect = new Rect(0, 0, cropRect.width(), cropRect.height());
    Bitmap cropped = Bitmap.createBitmap(cropRect.width(), cropRect.height(), Bitmap.Config.RGB_565);
    Canvas canvas = new Canvas(cropped);
    canvas.drawBitmap(bitmap, cropRect, destRect, null);
    return cropped;
}

From source file:Main.java

public static Bitmap tintBitmap(Bitmap src, int color) {
    Paint paint = new Paint();
    paint.setColorFilter(new PorterDuffColorFilter(color, PorterDuff.Mode.SRC_IN));
    Bitmap dst = Bitmap.createBitmap(src.getWidth(), src.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(dst);
    canvas.drawBitmap(src, 0, 0, paint);
    return dst;//from  ww  w. java  2s .c  o m
}

From source file:Main.java

public static Bitmap setSaturation(Bitmap srcBitmap, float sat) {
    Bitmap bitmap = Bitmap.createBitmap(srcBitmap);
    ColorMatrix cm = new ColorMatrix();
    cm.setSaturation(sat);/* w  ww.  java  2  s.  c  om*/
    Paint paint = new Paint();
    paint.setColorFilter(new ColorMatrixColorFilter(cm));
    Canvas canvas = new Canvas(bitmap);
    canvas.drawBitmap(srcBitmap, 0, 0, paint);
    return bitmap;
}

From source file:Main.java

public static Bitmap changeBitmapColor(@NonNull Bitmap sourceBitmap, @IntegerRes int color) {

    Bitmap resultBitmap = Bitmap.createBitmap(sourceBitmap, 0, 0, sourceBitmap.getWidth() - 1,
            sourceBitmap.getHeight() - 1);
    Paint p = new Paint();
    ColorFilter filter = new LightingColorFilter(color, 1);
    p.setColorFilter(filter);//w  ww  .j a v a  2 s .c om

    Canvas canvas = new Canvas(resultBitmap);
    canvas.drawBitmap(resultBitmap, 0, 0, p);
    return resultBitmap;
}

From source file:Main.java

public static Bitmap setupFrame(Bitmap bitmap, int width, int color) {
    if (bitmap.getWidth() <= width * 2 || bitmap.getHeight() <= width * 2) {
        return bitmap;
    }//from  www .  j  av a  2  s.  c  om

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

    Canvas canvas = new Canvas(bp);
    canvas.drawBitmap(bitmap, 0, 0, new Paint());
    Paint paint = new Paint();
    paint.setColor(color);
    paint.setStrokeWidth(width);
    paint.setStyle(Style.STROKE);
    canvas.drawRect(0, 0, canvas.getWidth() - width, canvas.getHeight() - width, paint);

    bitmap.recycle();
    return bp;
}

From source file:Main.java

public static Bitmap setContrast(Bitmap srcBitmap, float contrast) {
    Bitmap bitmap = Bitmap.createBitmap(srcBitmap);
    ColorMatrix cm = new ColorMatrix(
            new float[] { contrast, 0, 0, 0, 0, 0, contrast, 0, 0, 0, 0, 0, contrast, 0, 0, 0, 0, 0, 1, 0 });
    cm.setSaturation(contrast);//from   w w w.j  a v a2s  . c  om
    Paint paint = new Paint();
    paint.setColorFilter(new ColorMatrixColorFilter(cm));
    Canvas canvas = new Canvas(bitmap);
    canvas.drawBitmap(srcBitmap, 0, 0, paint);
    return bitmap;
}

From source file:Main.java

/**
 * Draw the image to viewBitmap at the same scale drawing mode.
 * @param viewBitmap Bitmap to be displayed on the device.
 * @param bitmap Bitmap image.//from   w w  w . ja  v a 2 s  .co m
 * @param x x
 * @param y y
 */
public static void drawImageForNonScalesMode(final Bitmap viewBitmap, final Bitmap bitmap, final double x,
        final double y) {

    float startGridX = (float) x;
    float startGridY = (float) y;

    Canvas canvas = new Canvas(viewBitmap);

    canvas.drawBitmap(bitmap, startGridX, startGridY, null);
}

From source file:Main.java

public static Bitmap scale(Bitmap b, float scale) {
    Bitmap res = Bitmap.createBitmap((int) (b.getWidth() * scale + .5f), (int) (b.getHeight() * scale + .5f),
            b.getConfig());//from  www . j a  v a2  s. c om
    Canvas c = new Canvas(res);
    c.scale(scale, scale);
    c.drawBitmap(b, 0, 0, scalePaint);
    return res;
}

From source file:Main.java

public static Bitmap combineDrawables(Resources resources, int head, int body, int legs) {
    Bitmap headBitmap = getBitmap(resources, head);
    Bitmap bodyBitmap = getBitmap(resources, body);
    Bitmap legsBitmap = getBitmap(resources, legs);

    int height = headBitmap.getHeight() + bodyBitmap.getHeight() + legsBitmap.getHeight();
    int width = Math.max(headBitmap.getWidth(), Math.max(bodyBitmap.getWidth(), legsBitmap.getWidth()));

    Bitmap result = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas comboImage = new Canvas(result);
    comboImage.drawBitmap(headBitmap, 0f, 0f, null);
    comboImage.drawBitmap(bodyBitmap, 0f, headBitmap.getHeight(), null);
    comboImage.drawBitmap(legsBitmap, 0f, headBitmap.getHeight() + bodyBitmap.getHeight(), null);

    return result;
}

From source file:Main.java

/**
 * Method to remove colors in a Bitmap, creating a gray scale image.
 *
 * @param source The original Bitmap.//from   w  w w.  j  av  a  2  s  . c om
 * @return The gray scale Bitmap.
 */
public static Bitmap toGrayscale(Bitmap source) {
    Bitmap bmpGrayscale = Bitmap.createBitmap(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bmpGrayscale);
    canvas.drawBitmap(source, 0, 0, getGrayScalePaint());
    return bmpGrayscale;
}