Examples with AffineTransform java.awt.geom.AffineTransform used on opensource projects

Example 21 with AffineTransform

use of java.awt.geom.AffineTransform in project hid-serial by rayshobby.

the class GAbstractControl method setRotation.

/**
	 * Set the rotation to apply when displaying this control. The center of 
	 * rotation is determined by the mode parameter parameter.
	 * 
	 * @param angle clockwise angle in radians
	 * @param mode PApplet.CORNER / CORNERS / CENTER
	 */
public void setRotation(float angle, GControlMode mode) {
    rotAngle = angle;
    AffineTransform aff = new AffineTransform();
    aff.setToRotation(angle);
    switch(mode) {
        case CORNER:
        case CORNERS:
            // Rotate about top corner
            temp[0] = halfWidth;
            temp[1] = halfHeight;
            aff.transform(temp, 0, temp, 0, 1);
            // - halfWidth;
            cx = (float) temp[0] + x;
            // - halfHeight;
            cy = (float) temp[1] + y;
            break;
        case CENTER:
        default:
            // Rotate about centre
            temp[0] = -halfWidth;
            temp[1] = -halfHeight;
            aff.transform(temp, 0, temp, 0, 1);
            x = cx + (float) temp[0];
            // should this be minus?? I don't think so
            y = cy + (float) temp[1];
            break;
    }
}

Example 22 with AffineTransform

use of java.awt.geom.AffineTransform in project scriptographer by scriptographer.

the class TransformStackElement method matrixMultiply.

/**
     *  Multiplies two 2x3 matrices of double precision values
     */
private double[] matrixMultiply(double[] matrix1, double[] matrix2) {
    double[] product = new double[6];
    AffineTransform transform1 = new AffineTransform(matrix1);
    transform1.concatenate(new AffineTransform(matrix2));
    transform1.getMatrix(product);
    return product;
}

Example 23 with AffineTransform

use of java.awt.geom.AffineTransform in project dbeaver by serge-rider.

the class ImageViewCanvas method syncScrollBars.

/**
	 * Synchronize the scrollbar with the image. If the transform is out
	 * of range, it will correct it. This function considers only following
	 * factors :<b> transform, image size, client area</b>.
	 */
public void syncScrollBars() {
    if (sourceImage == null) {
        redraw();
        return;
    }
    AffineTransform af = transform;
    double sx = af.getScaleX(), sy = af.getScaleY();
    double tx = af.getTranslateX(), ty = af.getTranslateY();
    if (tx > 0)
        tx = 0;
    if (ty > 0)
        ty = 0;
    ScrollBar horizontal = getHorizontalBar();
    horizontal.setIncrement(getClientArea().width / 100);
    horizontal.setPageIncrement(getClientArea().width);
    Rectangle imageBound = sourceImage.getBounds();
    int cw = getClientArea().width, ch = getClientArea().height;
    if (imageBound.width * sx > cw) {
        /* image is wider than client area */
        horizontal.setMaximum((int) (imageBound.width * sx));
        horizontal.setEnabled(true);
        if (((int) -tx) > horizontal.getMaximum() - cw)
            tx = -horizontal.getMaximum() + cw;
    } else {
        /* image is narrower than client area */
        horizontal.setEnabled(false);
        //center if too small.
        tx = (cw - imageBound.width * sx) / 2;
    }
    horizontal.setSelection((int) (-tx));
    horizontal.setThumb(getClientArea().width);
    ScrollBar vertical = getVerticalBar();
    vertical.setIncrement(getClientArea().height / 100);
    vertical.setPageIncrement(getClientArea().height);
    if (imageBound.height * sy > ch) {
        /* image is higher than client area */
        vertical.setMaximum((int) (imageBound.height * sy));
        vertical.setEnabled(true);
        if (((int) -ty) > vertical.getMaximum() - ch)
            ty = -vertical.getMaximum() + ch;
    } else {
        /* image is less higher than client area */
        vertical.setEnabled(false);
        //center if too small.
        ty = (ch - imageBound.height * sy) / 2;
    }
    vertical.setSelection((int) (-ty));
    vertical.setThumb(getClientArea().height);
    /* update transform. */
    af = AffineTransform.getScaleInstance(sx, sy);
    af.preConcatenate(AffineTransform.getTranslateInstance(tx, ty));
    transform = af;
    redraw();
}

Example 24 with AffineTransform

use of java.awt.geom.AffineTransform in project dbeaver by serge-rider.

the class ImageViewCanvas method scrollVertically.

/* Scroll vertically */
private void scrollVertically(ScrollBar scrollBar) {
    if (sourceImage == null)
        return;
    AffineTransform af = transform;
    double ty = af.getTranslateY();
    double select = -scrollBar.getSelection();
    af.preConcatenate(AffineTransform.getTranslateInstance(0, select - ty));
    transform = af;
    syncScrollBars();
}

Example 25 with AffineTransform

use of java.awt.geom.AffineTransform in project dbeaver by serge-rider.

the class ImageViewCanvas method fitCanvas.

/**
	 * Fit the image onto the canvas
	 */
public void fitCanvas() {
    if (sourceImage == null)
        return;
    Rectangle imageBound = sourceImage.getBounds();
    Rectangle destRect = getClientArea();
    double sx = (double) destRect.width / (double) imageBound.width;
    double sy = (double) destRect.height / (double) imageBound.height;
    double s = Math.min(sx, sy);
    double dx = 0.5 * destRect.width;
    double dy = 0.5 * destRect.height;
    centerZoom(dx, dy, s, new AffineTransform());
}