/** {@inheritDoc} */
@Override
public void mouseDragged(final MouseEvent aEvent) {
final MouseEvent event = convertEvent(aEvent);
final Point point = event.getPoint();
// Update the selected channel while dragging...
this.controller.setSelectedChannel(point);
if (getModel().isCursorMode() && (this.movingCursor >= 0)) {
this.controller.moveCursor(this.movingCursor, getCursorDropPoint(point));
aEvent.consume();
} else {
if ((this.lastClickPosition == null)
&& ((aEvent.getModifiersEx() & InputEvent.BUTTON1_DOWN_MASK) != 0)) {
this.lastClickPosition = new Point(point);
}
final JScrollPane scrollPane =
getAncestorOfClass(JScrollPane.class, (Component) aEvent.getSource());
if ((scrollPane != null) && (this.lastClickPosition != null)) {
final JViewport viewPort = scrollPane.getViewport();
final Component signalView = this.controller.getSignalDiagram().getSignalView();
boolean horizontalOnly = (aEvent.getModifiersEx() & InputEvent.ALT_DOWN_MASK) != 0;
boolean verticalOnly =
horizontalOnly && ((aEvent.getModifiersEx() & InputEvent.SHIFT_DOWN_MASK) != 0);
int dx = aEvent.getX() - this.lastClickPosition.x;
int dy = aEvent.getY() - this.lastClickPosition.y;
Point scrollPosition = viewPort.getViewPosition();
int newX = scrollPosition.x;
if (!verticalOnly) {
newX -= dx;
}
int newY = scrollPosition.y;
if (verticalOnly || !horizontalOnly) {
newY -= dy;
}
int diagramWidth = signalView.getWidth();
int viewportWidth = viewPort.getWidth();
int maxX = diagramWidth - viewportWidth - 1;
scrollPosition.x = Math.max(0, Math.min(maxX, newX));
int diagramHeight = signalView.getHeight();
int viewportHeight = viewPort.getHeight();
int maxY = diagramHeight - viewportHeight;
scrollPosition.y = Math.max(0, Math.min(maxY, newY));
viewPort.setViewPosition(scrollPosition);
}
// Use UNCONVERTED/ORIGINAL mouse event!
handleZoomRegion(aEvent, this.lastClickPosition);
}
}
/**
* @param aEvent
* @param aStartPoint
*/
protected void handleZoomRegion(final MouseEvent aEvent, final Point aStartPoint) {
// For now, disabled by default as it isn't 100% working yet...
if (Boolean.FALSE.equals(Boolean.valueOf(System.getProperty("zoomregionenabled", "false")))) {
return;
}
final JComponent source = (JComponent) aEvent.getComponent();
final boolean dragging = (aEvent.getID() == MouseEvent.MOUSE_DRAGGED);
final GhostGlassPane glassPane =
(GhostGlassPane) SwingUtilities.getRootPane(source).getGlassPane();
Rectangle viewRect;
final JScrollPane scrollPane =
SwingComponentUtils.getAncestorOfClass(JScrollPane.class, source);
if (scrollPane != null) {
final JViewport viewport = scrollPane.getViewport();
viewRect = SwingUtilities.convertRectangle(viewport, viewport.getVisibleRect(), glassPane);
} else {
viewRect = SwingUtilities.convertRectangle(source, source.getVisibleRect(), glassPane);
}
final Point start = SwingUtilities.convertPoint(source, aStartPoint, glassPane);
final Point current = SwingUtilities.convertPoint(source, aEvent.getPoint(), glassPane);
if (dragging) {
if (!glassPane.isVisible()) {
glassPane.setVisible(true);
glassPane.setRenderer(new RubberBandRenderer(), start, current, viewRect);
} else {
glassPane.updateRenderer(start, current, viewRect);
}
glassPane.repaintPartially();
} else
/* if ( !dragging ) */
{
// Fire off a signal to the zoom controller to do its job...
this.controller.getZoomController().zoomRegion(aStartPoint, aEvent.getPoint());
glassPane.setVisible(false);
}
}