Package org.apache.batik.dom.events

Examples of org.apache.batik.dom.events.DOMMouseEvent

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   * @param evt Mouse event.
   * @return Input mode
   */
  private Mode getInputMode(Event evt) {
    if(evt instanceof DOMMouseEvent) {
      DOMMouseEvent domme = (DOMMouseEvent) evt;
      // TODO: visual indication of mode possible?
      if(domme.getShiftKey()) {
        return Mode.ADD;
      }
      else if(domme.getCtrlKey()) {
        return Mode.INVERT;
      }
      else {
        return Mode.REPLACE;
      }
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   * @param evt Event to interpret
   * @return coordinates
   */
  public static SVGPoint elementCoordinatesFromEvent(Document doc, Element tag, Event evt) {
    try {
      DOMMouseEvent gnme = (DOMMouseEvent) evt;
      SVGMatrix mat = ((SVGLocatable) tag).getScreenCTM();
      SVGMatrix imat = mat.inverse();
      SVGPoint cPt = ((SVGDocument) doc).getRootElement().createSVGPoint();
      cPt.setX(gnme.getClientX());
      cPt.setY(gnme.getClientY());
      return cPt.matrixTransform(imat);
    }
    catch(Exception e) {
      LoggingUtil.warning("Error getting coordinates from SVG event.", e);
      return null;
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   * @param evt Mouse event.
   * @return current input mode
   */
  private Mode getInputMode(Event evt) {
    if(evt instanceof DOMMouseEvent) {
      DOMMouseEvent domme = (DOMMouseEvent) evt;
      // TODO: visual indication of mode possible?
      if(domme.getShiftKey()) {
        return Mode.ADD;
      }
      else if(domme.getCtrlKey()) {
        return Mode.INVERT;
      }
      else {
        return Mode.REPLACE;
      }
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   * @param evt Event to interpret
   * @return coordinates
   */
  public static SVGPoint elementCoordinatesFromEvent(Document doc, Element tag, Event evt) {
    try {
      DOMMouseEvent gnme = (DOMMouseEvent) evt;
      SVGMatrix mat = ((SVGLocatable) tag).getScreenCTM();
      SVGMatrix imat = mat.inverse();
      SVGPoint cPt = ((SVGDocument) doc).getRootElement().createSVGPoint();
      cPt.setX(gnme.getClientX());
      cPt.setY(gnme.getClientY());
      return cPt.matrixTransform(imat);
    }
    catch(Exception e) {
      LoggingUtil.warning("Error getting coordinates from SVG event.", e);
      return null;
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   * @return Array containing the X and Y values
   */
  public static double[] getRelativeCoordinates(Event evt, Element reference) {
    if(evt instanceof DOMMouseEvent && reference instanceof SVGLocatable && reference instanceof SVGElement) {
      // Get the screen (pixel!) coordinates
      DOMMouseEvent gnme = (DOMMouseEvent) evt;
      SVGMatrix mat = ((SVGLocatable) reference).getScreenCTM();
      SVGMatrix imat = mat.inverse();
      SVGPoint cPt = ((SVGElement) reference).getOwnerSVGElement().createSVGPoint();
      cPt.setX(gnme.getClientX());
      cPt.setY(gnme.getClientY());
      // Have Batik transform the screen (pixel!) coordinates into SVG element
      // coordinates
      cPt = cPt.matrixTransform(imat);

      return new double[] { cPt.getX(), cPt.getY() };
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