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 addWhiteBorder(Bitmap bmp, int borderSize) {
    Bitmap bmpWithBorder = Bitmap.createBitmap(bmp.getWidth() + borderSize * 2,
            bmp.getHeight() + borderSize * 2, bmp.getConfig());
    Canvas canvas = new Canvas(bmpWithBorder);
    canvas.drawColor(Color.WHITE);
    canvas.drawBitmap(bmp, borderSize, borderSize, null);
    return bmpWithBorder;
}

---

From source file:Main.java

public static Bitmap cropJpgFile(String inFl, String outFl) throws IOException {
    Bitmap bmpIn = BitmapFactory.decodeFile(inFl);
    Bitmap bmOverlay = Bitmap.createBitmap(bmpIn.getWidth(), bmpIn.getHeight(), Bitmap.Config.ARGB_8888);
    Paint p = new Paint();
    p.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
    Canvas c = new Canvas(bmOverlay);
    c.drawBitmap(bmpIn, 0, 0, null);
    //c.drawRect(30, 30, 100, 100, p);
    File fileOut = new File(outFl);
    FileOutputStream out = new FileOutputStream(fileOut);
    bmOverlay = drawTextToBitmap(bmOverlay, "Image Viewer");
    bmOverlay.compress(Bitmap.CompressFormat.JPEG, 100, out);
    return bmOverlay;
}

---

From source file:Main.java

/**
 * Method to combine images side by side.
 *
 * @param leftBmp  The left Bitmap./*from  w ww.  ja  v a  2 s. c o  m*/
 * @param rightBmp The right Bitmap.
 * @return A Bitmap with left and right bitmap are glued side by side.
 */
public static Bitmap combineImagesSideBySide(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

public static Bitmap createScaledBitmap(Bitmap unscaledBitmap, int dstWidth, int dstHeight,
        ScaleType scalingLogic) {/*w w  w .  ja v a2  s. c om*/
    Rect srcRect = calculateSrcRect(unscaledBitmap.getWidth(), unscaledBitmap.getHeight(), dstWidth, dstHeight,
            scalingLogic);
    Rect dstRect = calculateDstRect(unscaledBitmap.getWidth(), unscaledBitmap.getHeight(), dstWidth, dstHeight,
            scalingLogic);
    Bitmap scaledBitmap = Bitmap.createBitmap(dstRect.width(), dstRect.height(), Config.ARGB_8888);
    Canvas canvas = new Canvas(scaledBitmap);
    canvas.drawBitmap(unscaledBitmap, srcRect, dstRect, new Paint(Paint.FILTER_BITMAP_FLAG));
    return scaledBitmap;
}

---

From source file:Main.java

public static Bitmap punchAHoleInABitmap(Context context, Bitmap foreground, float x1, float y1) {
    Bitmap bitmap = Bitmap.createBitmap(foreground.getWidth(), foreground.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint();
    canvas.drawBitmap(foreground, 0, 0, paint);
    paint.setAntiAlias(true);//from   w  w w. j  a  va2 s.  c  o  m
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
    float radius = (float) (getScreenSize(context).x * .06);
    canvas.drawCircle(x1, y1 - 450, radius, paint);
    return bitmap;
}

---

From source file:Main.java

public static Bitmap GetBitmapClippedCircle(Bitmap bitmap) {

    final int width = bitmap.getWidth();
    final int height = bitmap.getHeight();
    final Bitmap outputBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);

    final Path path = new Path();
    path.addCircle((float) (width / 2), (float) (height / 2), (float) Math.min(width, (height / 2)),
            Path.Direction.CCW);/* w ww  .  j  ava 2 s  .c  om*/

    final Canvas canvas = new Canvas(outputBitmap);
    canvas.clipPath(path);
    canvas.drawBitmap(bitmap, 0, 0, null);
    return outputBitmap;
}

---

From source file:Main.java

public static Bitmap setReflection(Bitmap bitmap, int distance, float ratio) {
    final int reflectionGap = distance;
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    Matrix matrix = new Matrix();
    matrix.preScale(1, -1);//from  w w w  .j av  a2s.  c  o m
    Bitmap reflectionBitmap = Bitmap.createBitmap(bitmap, 0, height / 2, width, (int) (height * ratio), matrix,
            false);
    Bitmap withReflectionBitmap = Bitmap.createBitmap(width, (height + (int) (height * ratio) + reflectionGap),
            Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(withReflectionBitmap);
    canvas.drawBitmap(bitmap, 0, 0, null);
    Paint defaultPaint = new Paint();
    defaultPaint.setColor(Color.TRANSPARENT);
    canvas.drawRect(0, height, width, height + reflectionGap, defaultPaint);
    canvas.drawBitmap(reflectionBitmap, 0, height + reflectionGap, null);

    Paint paint = new Paint();
    LinearGradient shader = new LinearGradient(0, bitmap.getHeight(), 0, withReflectionBitmap.getHeight(),
            0x70ffffff, 0x00ffffff, Shader.TileMode.MIRROR);
    paint.setShader(shader);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));

    canvas.drawRect(0, height, width, withReflectionBitmap.getHeight(), paint);
    return withReflectionBitmap;
}

---

From source file:Main.java

static public void setImageColor(ImageView view, Bitmap sourceBitmap, int rgbcolor)// ,Bitmap sourceBitmap)
{
    if (sourceBitmap != null) {
        float R = Color.red(rgbcolor);
        float G = Color.green(rgbcolor);
        float B = Color.blue(rgbcolor);

        Log.v("R:G:B", R + ":" + G + ":" + B); //

        float[] colorTransform = { R / 255f, 0, 0, 0, 0, // R color
                0, G / 255f, 0, 0, 0 // G color
                , 0, 0, B / 255f, 0, 0 // B color
                , 0, 0, 0, 1f, 0f };//from w  w  w.  j  ava2 s  .  c o  m

        ColorMatrix colorMatrix = new ColorMatrix();
        colorMatrix.setSaturation(0f); // Remove Colour

        colorMatrix.set(colorTransform);
        ColorMatrixColorFilter colorFilter = new ColorMatrixColorFilter(colorMatrix);
        Paint paint = new Paint();
        paint.setColorFilter(colorFilter);

        Bitmap mutableBitmap = sourceBitmap.copy(Bitmap.Config.ARGB_8888, true);
        view.setImageBitmap(mutableBitmap);
        Canvas canvas = new Canvas(mutableBitmap);
        canvas.drawBitmap(mutableBitmap, 0, 0, paint);

    }
}

---

From source file:Main.java

/**
 * Adds the white border to the specifed bitmap image using specified border size.
 * /* w  w  w. j av a2s.  com*/
 * @param bmp to add border
 * @param borderSize
 * @return bitmap image with border.
 */
public static Bitmap addWhiteBorder(Bitmap bmp, int borderSize, int imgSize) {

    Bitmap bmpWithBorder = Bitmap.createBitmap(bmp.getWidth() + borderSize * 2,
            bmp.getHeight() + borderSize * 2, bmp.getConfig());
    Canvas canvas = new Canvas(bmpWithBorder);
    canvas.drawColor(Color.WHITE);
    canvas.drawBitmap(bmp, borderSize, borderSize, null);

    return bmpWithBorder;
}

---

From source file:Main.java

public static Bitmap applyReflection(Bitmap originalImage) {
    final int reflectionGap = 4;
    int width = originalImage.getWidth();
    int height = originalImage.getHeight();

    Matrix matrix = new Matrix();
    matrix.preScale(1, -1);//from  w  w  w .  ja  v a2 s  . co  m

    Bitmap reflectionImage = Bitmap.createBitmap(originalImage, 0, height / 2, width, height / 2, matrix,
            false);

    Bitmap bitmapWithReflection = Bitmap.createBitmap(width, (height + height / 2), Bitmap.Config.ARGB_8888);

    Canvas canvas = new Canvas(bitmapWithReflection);
    canvas.drawBitmap(originalImage, 0, 0, null);
    Paint defaultPaint = new Paint();
    canvas.drawRect(0, height, width, height + reflectionGap, defaultPaint);
    canvas.drawBitmap(reflectionImage, 0, height + reflectionGap, null);

    Paint paint = new Paint();
    LinearGradient shader = new LinearGradient(0, originalImage.getHeight(), 0,
            bitmapWithReflection.getHeight() + reflectionGap, 0x70ffffff, 0x00ffffff, Shader.TileMode.CLAMP);
    paint.setShader(shader);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
    canvas.drawRect(0, height, width, bitmapWithReflection.getHeight() + reflectionGap, paint);

    return bitmapWithReflection;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• »