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 setShadow(Bitmap bitmap, int radius) {
    BlurMaskFilter blurFilter = new BlurMaskFilter(radius, BlurMaskFilter.Blur.OUTER);
    Paint shadowPaint = new Paint();
    shadowPaint.setAlpha(50);/* w ww .jav a2s  .  co  m*/
    shadowPaint.setColor(0xff424242);
    shadowPaint.setMaskFilter(blurFilter);
    int[] offsetXY = new int[2];
    Bitmap shadowBitmap = bitmap.extractAlpha(shadowPaint, offsetXY);
    Bitmap shadowImage32 = shadowBitmap.copy(Bitmap.Config.ARGB_8888, true);
    Canvas c = new Canvas(shadowImage32);
    c.drawBitmap(bitmap, -offsetXY[0], -offsetXY[1], null);
    return shadowImage32;
}

From source file:Main.java

public static Bitmap createWatermark(Bitmap src, Bitmap watermark, int direction, int spacing) {
    final int w = src.getWidth();
    final int h = src.getHeight();
    Bitmap bitmap = Bitmap.createBitmap(w, h, Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    canvas.drawBitmap(src, 0, 0, null);
    if (direction == LEFT_TOP) {
        canvas.drawBitmap(watermark, spacing, spacing, null);
    } else if (direction == LEFT_BOTTOM) {
        canvas.drawBitmap(watermark, spacing, h - watermark.getHeight() - spacing, null);
    } else if (direction == RIGHT_TOP) {
        canvas.drawBitmap(watermark, w - watermark.getWidth() - spacing, spacing, null);
    } else if (direction == RIGHT_BOTTOM) {
        canvas.drawBitmap(watermark, w - watermark.getWidth() - spacing, h - watermark.getHeight() - spacing,
                null);// w  w w.  j ava2 s  . c om
    }
    return bitmap;
}

From source file:Main.java

public static Bitmap createReflectionImageWithOrigin(Bitmap bitmap) {
    int i = bitmap.getWidth();
    int j = bitmap.getHeight();
    Matrix matrix = new Matrix();
    matrix.preScale(1.0F, -1F);//from  ww w  .j av a  2s .  c o  m
    Bitmap bitmap1 = Bitmap.createBitmap(bitmap, 0, j / 2, i, j / 2, matrix, false);
    Bitmap bitmap2 = Bitmap.createBitmap(i, j + j / 2, android.graphics.Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap2);
    canvas.drawBitmap(bitmap, 0.0F, 0.0F, null);
    Paint paint = new Paint();
    canvas.drawRect(0.0F, j, i, j + 4, paint);
    canvas.drawBitmap(bitmap1, 0.0F, j + 4, null);
    Paint paint1 = new Paint();
    paint1.setShader(new LinearGradient(0.0F, bitmap.getHeight(), 0.0F, 4 + bitmap2.getHeight(), 0x70ffffff,
            0xffffff, android.graphics.Shader.TileMode.CLAMP));
    paint1.setXfermode(new PorterDuffXfermode(android.graphics.PorterDuff.Mode.DST_IN));
    canvas.drawRect(0.0F, j, i, 4 + bitmap2.getHeight(), paint1);
    return bitmap2;
}

From source file:Main.java

/**
 * Method to combine two images side by side.
 *
 * @param leftBmp  The left Bitmap./*from  w  w w .j a  v a 2s.com*/
 * @param rightBmp The right Bitmap.
 * @return A Bitmap with left and right bitmap are glued side by side.
 */
public static Bitmap combineTwoImagesSideBySide(Bitmap leftBmp, Bitmap rightBmp) {
    int width;
    int height = leftBmp.getHeight();

    if (leftBmp.getWidth() > rightBmp.getWidth()) {
        width = leftBmp.getWidth() + rightBmp.getWidth();
    } else {
        width = rightBmp.getWidth() + rightBmp.getWidth();
    }

    Bitmap cs = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);

    Canvas comboImage = new Canvas(cs);
    comboImage.drawBitmap(leftBmp, 0f, 0f, null);
    comboImage.drawBitmap(rightBmp, leftBmp.getWidth(), 0f, null);

    return cs;
}

From source file:Main.java

/**
 * Makes a texture from any bitmap. /*from   w  ww.j  av a2  s  . co  m*/
 * (Texture should have size that is power of 2) 
 * @param bmp bitmap
 * @return BitmapDrawable that has size that is power of 2. Bitmap is not stretched, free space 
 * is filled with default color.
 */
public static Bitmap makeTexture(Resources res, Bitmap bmp) {
    if (bmp == null) {
        throw new IllegalArgumentException("Bitmap can't be null");
    }

    int height = (int) roundPower2(bmp.getHeight());
    int width = (int) roundPower2(bmp.getWidth());

    Bitmap result = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);

    Canvas canvas = new Canvas(result);
    canvas.drawBitmap(bmp, 0, 0, null);

    return result;
}

From source file:Main.java

public static Bitmap combineImages(Bitmap bgd, Bitmap fg) {
    Bitmap bmp;//w w  w .j  a  v a 2  s . com

    int width = bgd.getWidth() > fg.getWidth() ? bgd.getWidth() : fg.getWidth();
    int height = bgd.getHeight() > fg.getHeight() ? bgd.getHeight() : fg.getHeight();

    bmp = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    Paint paint = new Paint();
    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_ATOP));

    Canvas canvas = new Canvas(bmp);
    canvas.drawBitmap(bgd, 0, 0, null);
    canvas.drawBitmap(fg, 0, 0, paint);

    return bmp;
}

From source file:Main.java

public static Bitmap combineImages(Bitmap bgd, Bitmap fg) {
    Bitmap bmp;/*from  w ww . j a v  a  2  s .c  o  m*/

    int width = bgd.getWidth() > fg.getWidth() ? bgd.getWidth() : fg.getWidth();
    int height = bgd.getHeight() > fg.getHeight() ? bgd.getHeight() : fg.getHeight();

    bmp = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    Paint paint = new Paint();
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_ATOP));

    Canvas canvas = new Canvas(bmp);
    canvas.drawBitmap(bgd, 0, 0, null);
    canvas.drawBitmap(fg, 0, 0, paint);

    return bmp;
}

From source file:Main.java

/**
 * Adds tint effect to target bitmap.// w  w w. j  a v  a2  s . com
 *
 * @param src
 *            PNG bitmap to apply tint affect
 * @param argb
 *            tint color
 * @return bitmap with tint affect
 */
public static Bitmap addTintEffect(Bitmap src, int argb) {
    Paint paint = new Paint();
    paint.setColorFilter(new PorterDuffColorFilter(argb, PorterDuff.Mode.SRC_OVER));

    Canvas bottomCanvas = new Canvas(src);
    bottomCanvas.drawBitmap(src, 0, 0, paint);

    return src;
}

From source file:Main.java

public static Bitmap mergeBitmap(Bitmap oriBmp, Bitmap subBmp, final Rect oriRect, final Rect subRect) {
    if (subBmp == null) {
        return oriBmp;
    }//w w  w  .  j  av  a  2  s. co  m

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

    if (!oriBmp.isMutable()) {
        oriBmp = createMutableBitmap(oriBmp);
    }

    Canvas canvas = new Canvas(oriBmp);
    canvas.drawBitmap(subBmp, subRect, oriRect, null);
    return oriBmp;
}

From source file:Main.java

public static Bitmap getColoredBitmap(Bitmap colorBitmap, int color) {
    Bitmap grayscaleBitmap = toGrayscale(colorBitmap);
    Paint pp = new Paint();
    PorterDuffColorFilter frontFilter = new PorterDuffColorFilter(color, PorterDuff.Mode.MULTIPLY);
    pp.setColorFilter(frontFilter);//from   w w w . j a  va 2 s  .com
    Canvas cc = new Canvas(grayscaleBitmap);
    cc.drawBitmap(grayscaleBitmap, 0, 0, pp);
    return grayscaleBitmap;
}