キャンバスを右クリックしたときに表示されるポップアップ メニューを作成したいと考えています。これどうやってするの？どの関数を変更する必要がありますか? どんな助けでも大歓迎です。
1704 次
4 に答える
2
protected class PopupGraphMousePlugin extends AbstractPopupGraphMousePlugin implements MouseListener {
public PopupGraphMousePlugin() {
this(MouseEvent.BUTTON3_MASK);
}
public PopupGraphMousePlugin(int modifiers) {
super(modifiers);
}
/**
* If this event is over a station (vertex), pop up a menu to
* allow the user to perform a few actions; else, pop up a menu over the layout/canvas
*
* @param e
*/
@SuppressWarnings("unchecked")
protected void handlePopup(MouseEvent e) {
final VisualizationViewer<String,String> vv =(VisualizationViewer<String,String>)e.getSource();
final Point2D p = e.getPoint();
final Point2D ivp = p;
JPopupMenu popup = new JPopupMenu();
System.out.println("mouse event!");
GraphElementAccessor<String,String> pickSupport = vv.getPickSupport();
System.out.println("GraphElementAccessor!");
if(pickSupport != null) {
final String pickV = pickSupport.getVertex(vv.getGraphLayout(), ivp.getX(), ivp.getY());
if(pickV != null) {
System.out.println("pickVisnotNull");
popup.add(new AbstractAction("Add New") {
/**
*
*/
public void actionPerformed(ActionEvent e) {
System.out.println("person added");
}
});//new abstraction
}
}///if picksupport
}//handlePopup(MouseEvent e)
}//PopupGraphMousePlugin
それはあなたの最初のコードのものです
これは第2部です
/Next, let's just build a simple mouse, to allow picking, translating, and zooming.
AbstractModalGraphMouse gMouse = new DefaultModalGraphMouse<Object, Object>();
vv.setGraphMouse(gMouse); //Add the mouse to our Visualization-Viewer.
//PluggableGraphMouse pgm = new PluggableGraphMouse();
gMouse.add(new PickingGraphMousePlugin<Object, Object>());
//pgm.add(new TranslatingGraphMousePlugin(MouseEvent.BUTTON3_MASK));
gMouse.add(new PopupGraphMousePlugin());
gMouse.add(new ScalingGraphMousePlugin(new CrossoverScalingControl(), 0, 1 / 1.1f, 1.1f));
于 2012-05-22T16:24:22.583 に答える
1
次のコードは、頂点またはキャンバスを右クリックしたときにポップアップ メニューを作成します...
/**
* a GraphMousePlugin that offers popup
* menu support
*/
protected class PopupGraphMousePlugin extends AbstractPopupGraphMousePlugin
implements MouseListener {
public PopupGraphMousePlugin() {
this(MouseEvent.BUTTON3_MASK);
}
public PopupGraphMousePlugin(int modifiers) {
super(modifiers);
}
/**
* If this event is over a station (vertex), pop up a menu to
* allow the user to perform a few actions; else, pop up a menu over the layout/canvas
*
* @param e
*/
protected void handlePopup(MouseEvent e) {
final VisualizationViewer<GeoLocation.Station,GeoLocation.Link> vv =
(VisualizationViewer<GeoLocation.Station,GeoLocation.Link>)e.getSource();
final Point2D p = e.getPoint();
final Point2D ivp = p;
GraphElementAccessor<GeoLocation.Station,GeoLocation.Link> pickSupport = vv.getPickSupport();
if(pickSupport != null) {
JPopupMenu popup = new JPopupMenu();
final GeoLocation.Station station = pickSupport.getVertex(vv.getGraphLayout(), ivp.getX(), ivp.getY());
if(station != null) {
boolean isRadio = station.getParentSet().contains(STATION_IDENTIFIER_KEY);
if(isRadio)
if (station.getId().equalsIgnoreCase(SneakPeek.getUsername())){
String follow = "Follow " + station.getId();
if (followLocal){
follow = "Do not follow " + station.getId();
}
else {
follow = "Follow " + station.getId();
}
popup.add(new AbstractAction("<html><center>" + follow) {
public void actionPerformed(ActionEvent e) {
followLocal = !followLocal;
}
});
}
if(popup.getComponentCount() > 0) {
popup.show(vv, e.getX(), e.getY());
}
}
}
else { //to pop-up over the canvas/layout rather than over the station
popup.add(new AbstractAction("Create Unit") {
public void actionPerformed(ActionEvent e) {
//do something here
}
});
if(popup.getComponentCount() > 0) {
popup.show(vv, e.getX(), e.getY());
}
}
}
}
AbstractModalGraphMouseマウスリスナーを処理するクラスにクラスを追加して、それを機能させます。
private AbstractModalGraphMouse graphMouse;
...
graphMouse = new DefaultModalGraphMouse<Object, Object>();
vvMap.setGraphMouse(graphMouse);
graphMouse.add(new PopupGraphMousePlugin());
上記のコードは機能します。ただし、ジェネリック パーツに別のユーザー データを使用する場合は、設計に合わせてコードを変更する必要があります。
于 2012-05-19T01:19:50.550 に答える
0
これは特に JUNG の質問ではありません。キャンバスは、いくつかの追加機能が移植された標準発行の Swing キャンバスであり、グラフ要素をクリックしているわけではありませんが、GraphEditorDemo と PluggableRendererDemo は似たようなことを示しています。
于 2012-05-11T17:17:36.373 に答える
0
protected void handlePopup(MouseEvent e) {
final VisualizationViewer<Integer,Number> vv = (VisualizationViewer<Integer,Number>)e.getSource();
Point2D p = e.getPoint();
//vv.getRenderContext().getBasicTransformer().inverseViewTransform(e.getPoint());
GraphElementAccessor<Integer,Number> pickSupport = vv.getPickSupport();
if(pickSupport != null) {
System.out.println("POPUP MOUSE is not NULL!");
final Integer v = pickSupport.getVertex(vv.getGraphLayout(), p.getX(), p.getY());
if(v != null) {
JPopupMenu popup = new JPopupMenu();
popup.add(new AbstractAction("Decrease Transparency") {
public void actionPerformed(ActionEvent e) {
Double value = Math.min(1,transparency.get(v).doubleValue()+0.1);
transparency.put(v, value);//vertex, value
vv.repaint();
}
});
popup.add(new AbstractAction("Increase Transparency"){
public void actionPerformed(ActionEvent e) {
Double value = Math.max(0,
transparency.get(v).doubleValue()-0.1);
transparency.put(v, value);
vv.repaint();
}
});
popup.show(vv, e.getX(), e.getY());
}
else {
final Number edge = pickSupport.getEdge(vv.getGraphLayout(), p.getX(), p.getY());
if(edge != null) {
JPopupMenu popup = new JPopupMenu();
popup.add(new AbstractAction(edge.toString()) {
public void actionPerformed(ActionEvent e) {
System.err.println("got "+edge);
}
});//popup.add
popup.show(vv, e.getX(), e.getY());
}//if edge != null)
}
}// if(pickSupport != null)
//rightclicked on Canvas
else{
System.out.println("On Canvas!");
}
}//handlePopup(MouseEvent e)
于 2012-06-06T08:31:02.760 に答える