Java Code Examples for android.graphics.Matrix.ScaleToFit

The following are Jave code examples for showing how to use ScaleToFit of the android.graphics.Matrix class. You can vote up the examples you like. Your votes will be used in our system to get more good examples.

Example 1

Project: PlusGram File: AndroidUtilities.java Source Code and License

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public static void setRectToRect(Matrix matrix, RectF src, RectF dst, int rotation, Matrix.ScaleToFit align) {
    float tx, sx;
    float ty, sy;
    if (rotation == 90 || rotation == 270) {
        sx = dst.height() / src.width();
        sy = dst.width() / src.height();
    } else {
        sx = dst.width() / src.width();
        sy = dst.height() / src.height();
    }
    if (align != Matrix.ScaleToFit.FILL) {
        if (sx > sy) {
            sx = sy;
        } else {
            sy = sx;
        }
    }
    tx = -src.left * sx;
    ty = -src.top * sy;

    matrix.setTranslate(dst.left, dst.top);
    if (rotation == 90) {
        matrix.preRotate(90);
        matrix.preTranslate(0, -dst.width());
    } else if (rotation == 180) {
        matrix.preRotate(180);
        matrix.preTranslate(-dst.width(), -dst.height());
    } else if (rotation == 270) {
        matrix.preRotate(270);
        matrix.preTranslate(-dst.height(), 0);
    }

    matrix.preScale(sx, sy);
    matrix.preTranslate(tx, ty);
}