import jalview.viewmodel.ViewportListenerI;
import java.awt.BorderLayout;
+import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
private boolean showHidden = true;
+ private boolean draggingBox = false;
+
/**
* Creates a new OverviewPanel object.
*
@Override
public void mouseDragged(MouseEvent evt)
{
- if (!SwingUtilities.isRightMouseButton(evt)
- && !av.getWrapAlignment())
+ if (!SwingUtilities.isRightMouseButton(evt))
{
- od.updateViewportFromMouse(evt.getX(), evt.getY(), av
+ if (draggingBox)
+ {
+ // set the mouse position as a fixed point in the box
+ // and drag relative to that position
+ od.adjustViewportFromMouse(evt.getX(),
+ evt.getY(), av.getAlignment().getHiddenSequences(),
+ av.getAlignment().getHiddenColumns());
+ }
+ else
+ {
+ od.updateViewportFromMouse(evt.getX(), evt.getY(), av
.getAlignment().getHiddenSequences(), av.getAlignment()
.getHiddenColumns());
-
+ }
}
}
if (od.isPositionInBox(evt.getX(), evt.getY()))
{
// display drag cursor at mouse position
-
+ setCursor(Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR));
}
else
{
// reset cursor
-
+ setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
}
}
});
showPopupMenu(evt);
}
}
- else if (!av.getWrapAlignment())
+ else
+ // if (!av.getWrapAlignment())
{
if (!od.isPositionInBox(evt.getX(), evt.getY()))
{
av.getAlignment().getHiddenSequences(),
av.getAlignment().getHiddenColumns());
}
+ else
+ {
+ draggingBox = true;
+ od.setDragPoint(evt.getX(), evt.getY(),
+ av.getAlignment().getHiddenSequences(),
+ av.getAlignment().getHiddenColumns());
+ }
+ }
+ }
+
+ @Override
+ public void mouseReleased(MouseEvent evt)
+ {
+ if (draggingBox)
+ {
+ draggingBox = false;
}
}
showPopupMenu(evt);
}
}
-
-
});
-
updateOverviewImage();
}
*/
public void updateOverviewImage()
{
+ if (oviewCanvas == null)
+ {
+ /*
+ * panel has been disposed
+ */
+ return;
+ }
+
if ((getWidth() > 0) && (getHeight() > 0))
{
od.setWidth(getWidth());
Thread thread = new Thread(this);
thread.start();
repaint();
-
}
@Override
{
setBoxPosition();
}
+
+ /**
+ * Removes this object as a property change listener, and nulls references
+ */
+ protected void dispose()
+ {
+ try
+ {
+ av.getRanges().removePropertyChangeListener(this);
+ } finally
+ {
+ av = null;
+ oviewCanvas = null;
+ ap = null;
+ od = null;
+ }
+ }
}