Example usage for javafx.scene.control ContextMenu isShowing

List of usage examples for javafx.scene.control ContextMenu isShowing

Introduction

In this page you can find the example usage for javafx.scene.control ContextMenu isShowing.

Prototype

public final boolean isShowing() 

Source Link

Usage

From source file:snpviewer.SnpViewer.java

@Override
public void initialize(URL url, ResourceBundle rb) {
    labelSplitPane.setDividerPositions();
    chromSplitPane.setDividerPositions();
    Pane lpane = (Pane) horizontalSplit.getItems().get(0);
    SplitPane.setResizableWithParent(lpane, false);
    //mnemonics/shortcuts for menus        
    mainMenu.useSystemMenuBarProperty().set(true);
    fileMenu.setMnemonicParsing(true);/*from  w ww  . ja  va 2 s .c  o m*/
    sampleMenu.setMnemonicParsing(true);
    goMenu.setMnemonicParsing(true);
    helpMenu.setMnemonicParsing(true);
    newProjectMenu.setAccelerator(new KeyCodeCombination(KeyCode.N, KeyCombination.SHORTCUT_DOWN));
    loadProjectMenu.setAccelerator(new KeyCodeCombination(KeyCode.L, KeyCombination.SHORTCUT_DOWN));
    addAffSampleMenu.setAccelerator(
            new KeyCodeCombination(KeyCode.A, KeyCombination.SHORTCUT_DOWN, KeyCombination.SHIFT_DOWN));
    addUnSampleMenu.setAccelerator(
            new KeyCodeCombination(KeyCode.U, KeyCombination.SHORTCUT_DOWN, KeyCombination.SHIFT_DOWN));
    nextChromMenu.setAccelerator(new KeyCodeCombination(KeyCode.EQUALS, KeyCombination.SHORTCUT_DOWN));
    prevChromMenu.setAccelerator(new KeyCodeCombination(KeyCode.MINUS, KeyCombination.SHORTCUT_DOWN));
    firstChromMenu.setAccelerator(new KeyCodeCombination(KeyCode.DIGIT1, KeyCombination.SHORTCUT_DOWN));
    lastChromMenu.setAccelerator(new KeyCodeCombination(KeyCode.DIGIT0, KeyCombination.SHORTCUT_DOWN));
    redrawMenu.setAccelerator(new KeyCodeCombination(KeyCode.R, KeyCombination.SHORTCUT_DOWN));
    cacheChromsMenu.setAccelerator(
            new KeyCodeCombination(KeyCode.C, KeyCombination.SHORTCUT_DOWN, KeyCombination.SHIFT_DOWN));
    saveToPngMenu.setAccelerator(
            new KeyCodeCombination(KeyCode.S, KeyCombination.SHORTCUT_DOWN, KeyCombination.SHIFT_DOWN));
    autoFindRegions.setAccelerator(new KeyCodeCombination(KeyCode.F, KeyCombination.SHORTCUT_DOWN));
    //need to disable hideSavedRegionsMenu accelerator for linux - doesn't work for check menus
    hideSavedRegionsMenu.setAccelerator(
            new KeyCodeCombination(KeyCode.H, KeyCombination.SHORTCUT_DOWN, KeyCombination.SHIFT_DOWN));
    clearSavedRegionsMenu.setAccelerator(
            new KeyCodeCombination(KeyCode.X, KeyCombination.SHORTCUT_DOWN, KeyCombination.SHIFT_DOWN));
    displaySavedsRegionsMenu.setAccelerator(new KeyCodeCombination(KeyCode.T, KeyCombination.SHORTCUT_DOWN));
    outputSavedRegionsMenu.setAccelerator(new KeyCodeCombination(KeyCode.O, KeyCombination.SHORTCUT_DOWN));
    removeSampleMenu.setAccelerator(
            new KeyCodeCombination(KeyCode.R, KeyCombination.SHORTCUT_DOWN, KeyCombination.SHIFT_DOWN));
    //set radio menu item toggle group
    ArrayList<RadioMenuItem> callQualityRadios = new ArrayList<>(
            Arrays.asList(noFilteringRadio, filter99, filter95, filter90, filter85));
    ToggleGroup callQualityToggle = new ToggleGroup();
    for (RadioMenuItem r : callQualityRadios) {
        r.setToggleGroup(callQualityToggle);
    }
    noFilteringRadio.setOnAction(new EventHandler() {
        @Override
        public void handle(Event ev) {
            setQualityFilter(null);
        }
    });

    filter99.setOnAction(new EventHandler() {
        @Override
        public void handle(Event ev) {
            setQualityFilter(0.01);
        }
    });

    filter95.setOnAction(new EventHandler() {
        @Override
        public void handle(Event ev) {
            setQualityFilter(0.05);
        }
    });

    filter90.setOnAction(new EventHandler() {
        @Override
        public void handle(Event ev) {
            setQualityFilter(0.10);
        }
    });

    filter85.setOnAction(new EventHandler() {
        @Override
        public void handle(Event ev) {
            setQualityFilter(0.15);
        }
    });

    nextChromMenu.setOnAction(new EventHandler() {
        @Override
        public void handle(Event ev) {
            selectNextChromosome(true);
        }
    });

    prevChromMenu.setOnAction(new EventHandler() {
        @Override
        public void handle(Event ev) {
            selectNextChromosome(false);
        }
    });

    firstChromMenu.setOnAction(new EventHandler() {
        @Override
        public void handle(Event ev) {
            if (!cancelButton.isDisabled()) {
                cancelButton.fire();
            }
            if (!chromosomeSelector.isDisabled()) {

                chromosomeSelector.getSelectionModel().selectFirst();
            }
        }
    });

    lastChromMenu.setOnAction(new EventHandler() {
        @Override
        public void handle(Event ev) {
            if (!cancelButton.isDisabled()) {
                cancelButton.fire();
            }
            if (!chromosomeSelector.isDisabled()) {
                chromosomeSelector.getSelectionModel().selectLast();
            }
        }
    });

    hideSavedRegionsMenu.setOnAction(new EventHandler() {
        @Override
        public void handle(Event ev) {
            showHideSavedRegions();
        }
    });

    colorComp.addAll(Arrays.asList(colorComponants));

    //selection context menu
    final ContextMenu scm = new ContextMenu();
    final MenuItem scmItem1 = new MenuItem("Display Flanking SNP IDs");
    scmItem1.setOnAction(new EventHandler<ActionEvent>() {
        @Override
        public void handle(ActionEvent e) {
            /* get coordinates of selection and report back
             * flanking snp ids and coordinates
             */
            displayFlankingSnpIDs(dragSelectRectangle);

        }
    });
    final MenuItem scmItem2 = new MenuItem("Write Selected Region to File");
    scmItem2.setOnAction(new EventHandler<ActionEvent>() {
        @Override
        public void handle(ActionEvent e) {
            Platform.runLater(new Runnable() {
                @Override
                public void run() {
                    /* get coordinates of selection and report back
                     * write SNPs in region to file
                     */
                    writeRegionToFile(dragSelectRectangle);
                }
            });
        }
    });
    final MenuItem scmItem3 = new MenuItem("Add To Saved Regions");
    scmItem3.setOnAction(new EventHandler<ActionEvent>() {
        @Override
        public void handle(ActionEvent e) {
            /* get coordinates of selection and report back
             * write SNPs in region to file
             */
            saveSelection();
        }
    });
    final MenuItem scmItem4 = new MenuItem("Show/Hide Saved Regions");
    scmItem4.setOnAction(new EventHandler<ActionEvent>() {
        @Override
        public void handle(ActionEvent e) {
            /* get coordinates of selection and report back
             * write SNPs in region to file
             */
            hideSavedRegionsMenu.selectedProperty().setValue(!hideSavedRegionsMenu.isSelected());
            hideSavedRegionsMenu.fire();
        }
    });
    final MenuItem scmItem5 = new MenuItem("Zoom Region");
    scmItem5.setOnAction(new EventHandler<ActionEvent>() {
        @Override
        public void handle(ActionEvent e) {
            Platform.runLater(new Runnable() {
                @Override
                public void run() {
                    /* get coordinates of selection and report back
                     * write SNPs in region to file
                     */
                    zoomRegion(dragSelectRectangle);
                }
            });
        }
    });
    final MenuItem scmItem6 = new MenuItem("Write Saved Regions to File");
    scmItem6.setOnAction(new EventHandler<ActionEvent>() {
        @Override
        public void handle(ActionEvent e) {
            Platform.runLater(new Runnable() {
                @Override
                public void run() {
                    /* get coordinates of selection and report back
                     * write SNPs in region to file
                     */
                    writeSavedRegionsToFile();
                }
            });
        }
    });

    scm.getItems().add(scmItem1);
    scm.getItems().add(scmItem2);
    scm.getItems().add(scmItem3);
    scm.getItems().add(scmItem4);
    scm.getItems().add(scmItem5);
    scm.getItems().add(scmItem6);
    //overlayPane context menu
    ocm = new ContextMenu();
    final MenuItem ocmItem1 = new MenuItem("Save Image to File");
    ocmItem1.setOnAction(new EventHandler<ActionEvent>() {
        @Override
        public void handle(ActionEvent e) {
            Platform.runLater(new Runnable() {
                @Override
                public void run() {
                    drawPaneToPng();
                }
            });
        }
    });

    ocm.getItems().add(ocmItem1);
    ocm.getItems().add(scmItem4);
    ocm.getItems().add(scmItem6);

    //color selections
    colorComponantSelector.getItems().clear();
    colorComponantSelector.getItems().add("AA");
    colorComponantSelector.getItems().add("BB");
    colorComponantSelector.getItems().add("AB");
    colorComponantSelector.getItems().add("Selection Outline");
    colorComponantSelector.getItems().add("Selection Fill");
    colorComponantSelector.getItems().add("Saved Region Outline");
    colorComponantSelector.getItems().add("Saved Region Fill");
    colorComponantSelector.getSelectionModel().selectFirst();
    colorPicker.setValue(colorComponants[0]);
    colorComponantSelector.getSelectionModel().selectedIndexProperty()
            .addListener(new ChangeListener<Number>() {
                @Override
                public void changed(ObservableValue ov, Number value, Number new_value) {
                    colorPicker.setValue(colorComp.get(new_value.intValue()));
                    colorPicker.fireEvent(new ActionEvent());
                }
            });
    colorPicker.setOnAction(new EventHandler() {
        @Override
        public void handle(Event t) {
            if (!colorComp.get(colorComponantSelector.getSelectionModel().getSelectedIndex())
                    .equals(colorPicker.getValue())) {
                colorComp.set(colorComponantSelector.getSelectionModel().getSelectedIndex(),
                        colorPicker.getValue());
                saveProject();
                //colorComponants[colorComponantSelector.getSelectionModel().getSelectedIndex()] = colorPicker.getValue();
                if (colorComponantSelector.getSelectionModel().getSelectedIndex() == Colors.fill.value) {
                    dragSelectRectangle.setFill(colorPicker.getValue());
                } else if (colorComponantSelector.getSelectionModel().getSelectedIndex() == Colors.line.value) {
                    dragSelectRectangle.setStroke(colorPicker.getValue());
                } else if (colorComponantSelector.getSelectionModel()
                        .getSelectedIndex() == Colors.saveLine.value) {
                    for (Rectangle r : savedRegionsDisplay) {
                        r.setStroke(colorPicker.getValue());
                    }
                } else if (colorComponantSelector.getSelectionModel()
                        .getSelectedIndex() == Colors.saveFill.value) {
                    for (Rectangle r : savedRegionsDisplay) {
                        r.setFill(colorPicker.getValue());
                    }
                } else {
                    removeSavedChromosomeImages();
                    if (redrawCheckBox.isSelected()) {
                        refreshView(null, true);
                    }
                }
            }
        }
    });

    /*perform appropriate action when user selects a chromosome
     * from the chromosome choice box
     */
    chromosomeSelector.getSelectionModel().selectedIndexProperty().addListener(new ChangeListener<Number>() {
        @Override
        public void changed(ObservableValue ov, Number value, Number new_value) {
            chromosomeBoxList = chromosomeSelector.getItems().toArray();

            if (new_value.intValue() > -1) {
                chromosomeSelected((String) chromosomeBoxList[new_value.intValue()]);
            }
        }
    });

    chromosomeSelector.addEventFilter(KeyEvent.ANY, new EventHandler<KeyEvent>() {
        @Override
        public void handle(KeyEvent ke) {
            if (ke.getCode() == KeyCode.UP) {
                ke.consume();
                chromosomeSelector.show();
            }
        }
    });

    selectionOverlayPane.heightProperty().addListener(new ChangeListener<Number>() {
        @Override
        public void changed(ObservableValue<? extends Number> observableValue, Number oldSceneWidth,
                Number newSceneWidth) {
            windowResized(new ActionEvent());

        }
    });

    selectionOverlayPane.widthProperty().addListener(new ChangeListener<Number>() {
        @Override
        public void changed(ObservableValue<? extends Number> observableValue, Number oldSceneWidth,
                Number newSceneWidth) {
            windowResized(new ActionEvent());
        }
    });

    /*upon addition of a new affected file adjust components accordingly
     * i.e. ensure appropriate chromosomes are in the choice box
     * adjust the split panes to fit all files and redisplay
     */

    affObserve.addListener(new ListChangeListener() {
        @Override
        public void onChanged(ListChangeListener.Change change) {
            change.next();/*from the javadoc 
                          * 'Go to the next change. In initial state is invalid a require 
                          * a call to next() before calling other methods. The first 
                          * next() call will make this object represent the first change.
                          */
            if (change.getRemovedSize() > 0) {
                List<SnpFile> both = new ArrayList<>(unFiles);
                both.addAll(affFiles);
                recheckChromosomeSelector(both);//need to check all files again, not just affFiles
            } else if (change.getAddedSize() > 0) {
                addToChromosomeSelector(affFiles);
            }
        }
    });

    /*as above 
     * but for unaffected files
     */
    unObserve.addListener(new ListChangeListener() {
        @Override
        public void onChanged(ListChangeListener.Change change) {
            change.next();
            if (change.getRemovedSize() > 0) {
                List<SnpFile> both = new ArrayList<>(unFiles);
                both.addAll(affFiles);
                recheckChromosomeSelector(both);//need to check all files again, not just unFiles
            } else if (change.getAddedSize() > 0) {
                addToChromosomeSelector(unFiles);
            }

        }
    });

    selectionOverlayPane.addEventHandler(MouseEvent.MOUSE_MOVED, new EventHandler<MouseEvent>() {
        @Override
        public void handle(MouseEvent e) {
            if (!genomeVersion.equals("") && chromosomeSelector.getSelectionModel().getSelectedIndex() > -1) {
                try {
                    ChromosomeLength chromLength = new ChromosomeLength(genomeVersion);
                    String currentChrom = (String) chromosomeBoxList[chromosomeSelector.getSelectionModel()
                            .getSelectedIndex()];
                    double coordinate = chromLength.getLength(currentChrom) / chromSplitPane.getWidth()
                            * e.getX();
                    positionIndicator.setText(nf.format(coordinate));

                } catch (Exception ex) {
                    positionIndicator.setText("Build Error!");
                }

            }
        }
    });
    /*handle mouse dragging and effect on dragSelectRectangle
     * 
     */
    dragSelectRectangle.widthProperty().bind(dragSelectRectX.subtract(dragSelectRectInitX));
    dragSelectRectangle.heightProperty().bind(selectionOverlayPane.heightProperty());
    //dragSelectRectangle.strokeProperty().set(colorComponants[Colors.line.value]);
    dragSelectRectangle.setStrokeWidth(4.0);

    //dragSelectRectangle.setBlendMode(BlendMode.SCREEN);
    dragSelectRectangle.setOpacity(0.45);
    dragSelectRectangle.setVisible(false);
    selectionOverlayPane.getChildren().add(dragSelectRectangle);

    selectionOverlayPane.addEventHandler(MouseEvent.MOUSE_PRESSED, new EventHandler<MouseEvent>() {
        @Override
        public void handle(MouseEvent e) {
            if (scm.isShowing()) {
                scm.hide();
            }
            if (!e.isPrimaryButtonDown()) {
                if (e.isSecondaryButtonDown()) {
                    //check we're not overlapping selection
                    if (e.getX() >= dragSelectRectangle.getX()
                            && e.getX() <= (dragSelectRectangle.getX() + dragSelectRectangle.getWidth())) {
                        return;
                    }
                    //check we're not overlapping saved regions
                    for (Rectangle r : savedRegionsDisplay) {
                        if (r.isVisible() && e.getX() >= r.getX() && e.getX() <= r.getX() + r.getWidth()) {
                            return;
                        }
                    }
                    if (chromosomeSelector.getSelectionModel().isEmpty()) {
                        ocmItem1.setDisable(true);
                    } else {
                        ocmItem1.setDisable(false);
                    }
                    ocm.show(selectionOverlayPane, e.getScreenX(), e.getScreenY());

                    return;
                }
            }
            if (ocm.isShowing()) {
                ocm.hide();
            }

            dragSelectRectangle.strokeProperty().set(colorComp.get(Colors.line.value));
            dragSelectRectangle.fillProperty().set(colorComp.get(Colors.fill.value));
            dragSelectRectX.set(0);
            dragSelectRectangle.setVisible(true);
            dragSelectRectangle.setX(e.getX());
            dragSelectRectangle.setY(0);
            dragSelectRectInitX.set(e.getX());
            anchorInitX.set(e.getX());

        }
    });
    selectionOverlayPane.addEventHandler(MouseEvent.MOUSE_DRAGGED, new EventHandler<MouseEvent>() {
        @Override
        public void handle(MouseEvent e) {
            if (!e.isPrimaryButtonDown()) {
                return;
            }
            dragSelectRectangle.setVisible(true);
            if (e.getX() > anchorInitX.doubleValue()) {//dragging to the right
                if (e.getX() <= selectionOverlayPane.getLayoutX() + selectionOverlayPane.getWidth()) {
                    //mouse is before the edge of the pane
                    dragSelectRectInitX.set(anchorInitX.doubleValue());
                    dragSelectRectX.set(e.getX());
                } else {
                    //mouse is over the edge
                    dragSelectRectX.set(selectionOverlayPane.getWidth());
                }
            } else {
                if (e.getX() > selectionOverlayPane.getLayoutX()) {
                    dragSelectRectInitX.set(e.getX());
                    dragSelectRectangle.setX(e.getX());
                    dragSelectRectX.set(anchorInitX.doubleValue());
                } else {
                    dragSelectRectInitX.set(0);
                    dragSelectRectangle.setX(0);
                    /* the two lines below are just to trigger 
                    * dragSelectRectangle.widthProperty listener 
                    * so that start coordinate changes to 1
                    */
                    dragSelectRectX.set(anchorInitX.doubleValue() + 1);
                    dragSelectRectX.set(anchorInitX.doubleValue() + 1);

                }
            }
        }
    });

    selectionOverlayPane.addEventHandler(MouseEvent.MOUSE_RELEASED, new EventHandler<MouseEvent>() {
        @Override
        public void handle(MouseEvent e) {
            //dragSelectRectX.set(e.getX());
            if (!e.isPrimaryButtonDown()) {
                return;
            }
            dragSelectRectangle.setVisible(true);
            if (dragSelectRectangle.getWidth() == 0) {
                clearDragSelectRectangle();
            }
        }
    });

    dragSelectRectangle.widthProperty().addListener(new ChangeListener() {
        @Override
        public void changed(ObservableValue observableValue, Object oldValue, Object newRectWidth) {
            if (!genomeVersion.equals("") && chromosomeSelector.getSelectionModel().getSelectedIndex() > -1
                    && dragSelectRectangle.getWidth() > 0) {
                try {
                    ChromosomeLength chromLength = new ChromosomeLength(genomeVersion);
                    String currentChrom = (String) chromosomeBoxList[chromosomeSelector.getSelectionModel()
                            .getSelectedIndex()];
                    double startCoordinate = chromLength.getLength(currentChrom)
                            / selectionOverlayPane.getWidth() * dragSelectRectangle.getX();
                    double selectionWidth = chromLength.getLength(currentChrom)
                            / selectionOverlayPane.getWidth() * dragSelectRectangle.getWidth();
                    if (dragSelectRectangle.getX() == 0) {
                        startCoordinate = 1;
                    }
                    selectionIndicator.setText("chr" + currentChrom + ":" + nf.format(startCoordinate) + "-"
                            + nf.format(startCoordinate + selectionWidth));
                } catch (Exception ex) {
                    selectionIndicator.setText("Build Error!");
                }
            } else {
                selectionIndicator.setText("");
            }

        }
    });

    dragSelectRectangle.addEventHandler(MouseEvent.MOUSE_CLICKED, new EventHandler<MouseEvent>() {
        @Override
        public void handle(MouseEvent e) {
            if (e.getButton() == MouseButton.SECONDARY) {
                if (chromosomeSelector.getSelectionModel().isEmpty()) {
                    scmItem1.setDisable(true);
                    scmItem2.setDisable(true);
                } else {
                    scmItem1.setDisable(false);
                    scmItem2.setDisable(false);
                }
                if (ocm.isShowing()) {
                    ocm.hide();
                }

                scm.show(selectionOverlayPane, e.getScreenX(), e.getScreenY());
            }
        }
    });

}

From source file:snpviewer.SnpViewer.java

private void drawSavedRegions(String chrom) {
    selectionOverlayPane.getChildren().clear();
    if (savedRegions.isEmpty()) {
        selectionOverlayPane.getChildren().add(dragSelectRectangle);
        return;//from   w ww .j a  v  a 2  s  .  c om
    }
    for (RegionSummary r : savedRegions) {
        if (r.getChromosome() == null) {
            selectionOverlayPane.getChildren().add(dragSelectRectangle);
            return;
        }
        if (r.getChromosome().equalsIgnoreCase(chrom)) {
            drawRegionSummary(r, chrom);
        }
    }
    int rectCounter = 0;
    for (final Rectangle rect : savedRegionsDisplay) {
        final int counter = rectCounter;
        final ContextMenu scm = new ContextMenu();
        final MenuItem scmItem1 = new MenuItem("Display Flanking SNP IDs");
        scmItem1.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent e) {
                /* get coordinates of selection and report back
                 * flanking snp ids and coordinates
                 */
                displayFlankingSnpIDs(rect);

            }
        });
        final MenuItem scmItem2 = new MenuItem("Write Region to File");
        scmItem2.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent e) {
                Platform.runLater(new Runnable() {
                    @Override
                    public void run() {
                        /* get coordinates of selection and 
                         * write SNPs in region to file
                         */
                        writeRegionToFile(rect);
                    }
                });
            }
        });
        final MenuItem scmItem3 = new MenuItem("Remove this Saved Region");
        scmItem3.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent e) {
                /* get coordinates of selection and 
                 * write SNPs in region to file
                 */
                removeSavedRegion(counter);

            }
        });
        final MenuItem scmItem4 = new MenuItem("Show/Hide Saved Regions");
        scmItem4.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent e) {
                /* get coordinates of selection and report back
                 * write SNPs in region to file
                 */
                hideSavedRegionsMenu.selectedProperty().setValue(!hideSavedRegionsMenu.isSelected());
                hideSavedRegionsMenu.fire();
            }
        });
        final MenuItem scmItem5 = new MenuItem("Zoom Region");
        scmItem5.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent e) {
                /* get coordinates of selection and report back
                 * write SNPs in region to file
                 */
                zoomRegion(rect);
            }
        });
        final MenuItem scmItem6 = new MenuItem("Write Saved Regions to File");
        scmItem6.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent e) {
                Platform.runLater(new Runnable() {
                    @Override
                    public void run() {
                        /* get coordinates of selection and report back
                         * write SNPs in region to file
                         */
                        writeSavedRegionsToFile();
                    }
                });
            }
        });

        scm.getItems().add(scmItem1);
        scm.getItems().add(scmItem2);
        scm.getItems().add(scmItem3);
        scm.getItems().add(scmItem4);
        scm.getItems().add(scmItem5);
        scm.getItems().add(scmItem6);
        rect.addEventHandler(MouseEvent.MOUSE_CLICKED, new EventHandler<MouseEvent>() {
            @Override
            public void handle(MouseEvent e) {
                ocm.hide();

                if (scm.isShowing()) {
                    scm.hide();
                }
                if (e.getButton() == MouseButton.SECONDARY) {
                    if (chromosomeSelector.getSelectionModel().isEmpty()) {
                        for (MenuItem mi : scm.getItems()) {
                            mi.setDisable(true);
                        }
                    } else {
                        for (MenuItem mi : scm.getItems()) {
                            mi.setDisable(false);
                        }
                    }

                    scm.show(selectionOverlayPane, e.getScreenX(), e.getScreenY());
                }
            }

        });
        rect.setVisible(true);
        selectionOverlayPane.getChildren().add(rect);
        rectCounter++;
    }
    selectionOverlayPane.getChildren().add(dragSelectRectangle);
}