/**
* @see
* net.refractions.udig.project.ui.tool.AbstractTool#mouseDragged(net.refractions.udig.project.render.displayAdapter.MapMouseEvent)
*/
public void mouseDragged(MapMouseEvent e) {
// update the glasspane if dragging
if (dragging && activeGlassPane != null && draggingPlaceMarker != null) {
Point point = null;
if (draggingPlaceMarker.isBasemapMarker() && draggingPlaceMarker.getCoord() != null) {
point = getContext().worldToPixel(draggingPlaceMarker.getCoord());
} else {
point = draggingPlaceMarker.getPoint();
}
int x = point.x + (e.x - mouseStart.x);
int y = point.y + (e.y - mouseStart.y);
// make sure any image markers stay within the bounds of the image
Point validatedPoint = new Point(x, y);
if (!draggingPlaceMarker.isBasemapMarker() && draggingPlaceMarker.getImage() != null) {
GeoReferenceImage image = draggingPlaceMarker.getImage();
validatedPoint = validateImagePoint(image, x, y);
}
activeGlassPane.setDragTranslation(validatedPoint.x, validatedPoint.y);
context.getViewportPane().repaint();
}
}
/**
* @see
* net.refractions.udig.project.ui.tool.AbstractTool#mouseReleased(net.refractions.udig.project.render.displayAdapter.MapMouseEvent)
*/
public void mouseReleased(MapMouseEvent e) {
// turn dragging off
if (dragging) {
if (activeGlassPane != null) {
Point point = null;
if (draggingPlaceMarker.isBasemapMarker() && draggingPlaceMarker.getCoord() != null) {
point = getContext().worldToPixel(draggingPlaceMarker.getCoord());
} else {
point = draggingPlaceMarker.getPoint();
}
int x = point.x + (e.x - mouseStart.x);
int y = point.y + (e.y - mouseStart.y);
// make sure any image markers stay within the bounds of the image
Point validatedPoint = new Point(x, y);
if (!draggingPlaceMarker.isBasemapMarker() && draggingPlaceMarker.getImage() != null) {
GeoReferenceImage image = draggingPlaceMarker.getImage();
validatedPoint = validateImagePoint(image, x, y);
}
activeGlassPane.endDraggingMarker(validatedPoint.x, validatedPoint.y);
}
// clear any events before we try to pan. This dramatically reduces the number
// of images drawn to the screen in the wrong spot
((ViewportPane) getContext().getMapDisplay()).update();
dragging = false;
if (draggingPlaceMarker != null) {
draggingPlaceMarker.setDragging(false);
}
}
// refresh the layer
if (activeMapGraphic != null) {
activeMapGraphic.getLayer(getContext().getMap()).refresh(null); // refresh to ensure the
// dragged placemarker
// reappears
}
}
/**
* @see
* net.refractions.udig.project.ui.tool.AbstractTool#mousePressed(net.refractions.udig.project.render.displayAdapter.MapMouseEvent)
*/
public void mousePressed(MapMouseEvent e) {
// validate the mouse click (only left mouse clicks should work for dragging)
if (!validModifierButtonCombo(e)) {
return;
}
// set the active objects and also force a redraw of
// the composed map image before panning so that we can
// remove the placemarker being dragged
List<ILayer> mapLayers = getContext().getMap().getMapLayers();
Iterator<ILayer> iterator = mapLayers.iterator();
while (iterator.hasNext()) {
ILayer layer = iterator.next();
GeoReferenceMapGraphic mapGraphic;
try {
mapGraphic = layer.getResource(GeoReferenceMapGraphic.class, null);
if (mapGraphic != null) {
activeMapGraphic = mapGraphic;
GlassPane glass = getContext().getViewportPane().getGlass();
if (glass instanceof GeoReferenceGlassPane) {
activeGlassPane = (GeoReferenceGlassPane) glass;
}
layer.refresh(null); // refresh to ensure the selected graphic disappears
break;
}
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
// determine if the user clicked on a placemarker or not. If multiple
// placemarkers are clicked on, choose the closest one to the click
draggingPlaceMarker = null;
if (activeMapGraphic != null) {
Point point = e.getPoint();
List<PlaceMarker> imageMarkers = activeMapGraphic.getImageMarkers();
List<PlaceMarker> basemapMarkers = activeMapGraphic.getBasemapMarkers();
if (imageMarkers == null || imageMarkers.size() < 1) {
return;
}
double currentdistance = PlaceMarker.DRAWING_SIZE + 1;
for (PlaceMarker marker : imageMarkers) {
Point markerPoint = marker.getPoint();
if (markerPoint != null) {
double distance = point.distance(markerPoint.x, markerPoint.y);
if (distance <= PlaceMarker.DRAWING_SIZE && distance < currentdistance) {
draggingPlaceMarker = marker;
currentdistance = distance;
}
}
}
// check basemap markers if we haven't matched one yet
if (draggingPlaceMarker == null && basemapMarkers != null) {
for (PlaceMarker marker : basemapMarkers) {
// compare the map coordinate not the screen point since
// the screen point could be out of whack if the user
// panned/zoomed the map
Coordinate markerCoord = marker.getCoord();
if (markerCoord != null) {
Point markerPoint = getContext().worldToPixel(markerCoord);
if (markerPoint != null) {
double distance = point.distance(markerPoint.x, markerPoint.y);
if (distance <= PlaceMarker.DRAWING_SIZE && distance < currentdistance) {
draggingPlaceMarker = marker;
currentdistance = distance;
}
}
}
}
}
}
// did we find a marker?
if (draggingPlaceMarker == null) {
return;
}
// marker found, set dragging vars
dragging = true;
draggingPlaceMarker.setDragging(true);
mouseStart = e.getPoint();
if (activeGlassPane != null && draggingPlaceMarker != null) {
Point point = null;
if (draggingPlaceMarker.isBasemapMarker() && draggingPlaceMarker.getCoord() != null) {
point = getContext().worldToPixel(draggingPlaceMarker.getCoord());
} else {
point = draggingPlaceMarker.getPoint();
}
activeGlassPane.startDraggingMarker(draggingPlaceMarker, point.x, point.y);
}
}