/**
* Translates current screen tiles grid to avoid actual view point transformation. Such grid
* translating leads to view point changing without any geo recalculations. This method also fires
* view point changed event if <code>isLast</code> param is true.
*
* @param x Amount of offset in screen coordinate space along horizontal axis.
* @param y Amount of offset in screen coordinate space along vertical axis.
* @param isLast Flag, indicating that this translate call is last call in some sequence. If true,
* view point change event will be fired.
* @throws Exception
*/
@Override
public void translateGrid(int x, int y, boolean isLast) throws Exception {
super.translateGrid(x, y, isLast);
if (isLast) {
Point2D.Double screenCenterBefore = screen2Cartesian(new Point(0, 0));
Point2D.Double screenCenterAfter = screen2Cartesian(new Point(x, y));
fireViewTranslated(
screenCenterAfter.x - screenCenterBefore.x,
screenCenterAfter.y - screenCenterBefore.y,
aoiToGeoGeometry(),
aoiToCartesianGeometry());
}
}
@Override
protected void paintScreenContext(Graphics2D g) {
if (screenContext != null) {
synchronized (screenContext) {
try {
// let's paint selection and phanton layers
screenRenderer.setMapContent(screenContext);
Rectangle clip = g.getClipBounds();
Point2D.Double lu = screen2Cartesian(clip.getLocation());
Point2D.Double br =
screen2Cartesian(new Point(clip.x + clip.width, clip.y + clip.height));
Geometry aoiGeometry = constructRectyPolygonGeometry(lu, br);
Envelope aoiEnvelope =
new ReferencedEnvelope(
aoiGeometry.getEnvelopeInternal(), screenContext.getCoordinateReferenceSystem());
screenRenderer.paint(g, clip, aoiEnvelope, cartesian2Screen);
} catch (NoninvertibleTransformException ex) {
Logger.getLogger(JGeoPane.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
super.paintScreenContext(g);
}
@Override
public synchronized void repaint() {
super.repaint();
}