Examples with Transform org.eclipse.swt.graphics.Transform used on opensource projects

Example 11 with Transform

use of org.eclipse.swt.graphics.Transform in project netxms by netxms.

the class Title method drawVerticalTitle.

/**
 * Draws the vertical title.
 *
 * @param gc
 *            The graphics context
 */
private void drawVerticalTitle(GC gc) {
    boolean useStyleRanges = styleRanges != null;
    int textWidth;
    int textHeight;
    if (useStyleRanges) {
        textWidth = textLayout.getBounds().width;
        textHeight = textLayout.getBounds().height;
    } else {
        textWidth = gc.textExtent(text).x;
        textHeight = gc.textExtent(text).y;
    }
    // create image to draw text
    Image image = new Image(Display.getCurrent(), textWidth, textHeight);
    GC tmpGc = new GC(image);
    if (useStyleRanges) {
        textLayout.draw(tmpGc, 0, 0);
    } else {
        tmpGc.setForeground(getForeground());
        tmpGc.setBackground(getBackground());
        tmpGc.setFont(getFont());
        tmpGc.drawText(text, 0, 0);
    }
    // set transform to rotate
    Transform transform = new Transform(gc.getDevice());
    transform.translate(0, textWidth);
    transform.rotate(270);
    gc.setTransform(transform);
    // draw the image on the rotated graphics context
    int height = getSize().y;
    int y = (int) (height / 2d - textWidth / 2d);
    if (y < 0) {
        y = 0;
    }
    gc.drawImage(image, -y, 0);
    // dispose resources
    tmpGc.dispose();
    transform.dispose();
    image.dispose();
}

Example 12 with Transform

use of org.eclipse.swt.graphics.Transform in project SIMVA-SoS by SESoS.

the class SWTGraphics2D method scale.

/**
 * Applies a scale transform.
 *
 * @param scaleX  the scale factor along the x-axis.
 * @param scaleY  the scale factor along the y-axis.
 */
public void scale(double scaleX, double scaleY) {
    Transform swtTransform = new Transform(this.gc.getDevice());
    this.gc.getTransform(swtTransform);
    swtTransform.scale((float) scaleX, (float) scaleY);
    this.gc.setTransform(swtTransform);
    swtTransform.dispose();
}

Example 13 with Transform

use of org.eclipse.swt.graphics.Transform in project SIMVA-SoS by SESoS.

the class SWTGraphics2D method translate.

/**
 * Applies a translation.
 *
 * @param x  the translation along the x-axis.
 * @param y  the translation along the y-axis.
 */
public void translate(int x, int y) {
    Transform swtTransform = new Transform(this.gc.getDevice());
    this.gc.getTransform(swtTransform);
    swtTransform.translate(x, y);
    this.gc.setTransform(swtTransform);
    swtTransform.dispose();
}

Example 14 with Transform

use of org.eclipse.swt.graphics.Transform in project SIMVA-SoS by SESoS.

the class SWTGraphics2D method getSwtTransformFromPool.

/**
 * Internal method to convert a AWT transform object into
 * a SWT transform resource. If a corresponding SWT transform
 * instance is already in the pool, it will be used
 * instead of creating a new one. This is used in
 * {@link #setTransform()} for instance.
 *
 * @param awtTransform The AWT transform to convert.
 * @return A SWT transform instance.
 */
private Transform getSwtTransformFromPool(AffineTransform awtTransform) {
    Transform t = (Transform) this.transformsPool.get(awtTransform);
    if (t == null) {
        t = new Transform(this.gc.getDevice());
        double[] matrix = new double[6];
        awtTransform.getMatrix(matrix);
        t.setElements((float) matrix[0], (float) matrix[1], (float) matrix[2], (float) matrix[3], (float) matrix[4], (float) matrix[5]);
        addToResourcePool(t);
        this.transformsPool.put(awtTransform, t);
    }
    return t;
}

Example 15 with Transform

use of org.eclipse.swt.graphics.Transform in project SIMVA-SoS by SESoS.

the class SWTGraphics2D method getTransform.

/**
 * Returns the current transform.
 *
 * @return The current transform.
 */
public AffineTransform getTransform() {
    Transform swtTransform = new Transform(this.gc.getDevice());
    this.gc.getTransform(swtTransform);
    AffineTransform awtTransform = toAwtTransform(swtTransform);
    swtTransform.dispose();
    return awtTransform;
}