Example usage for javafx.scene.input KeyCode X

List of usage examples for javafx.scene.input KeyCode X

Introduction

In this page you can find the example usage for javafx.scene.input KeyCode X.

Prototype

KeyCode X

To view the source code for javafx.scene.input KeyCode X.

Click Source Link

Document

Constant for the X key.

Usage

From source file:Main.java

@Override
public void start(final Stage primaryStage) {
    primaryStage.setTitle("title");
    Group root = new Group();
    Scene scene = new Scene(root, 400, 300, Color.WHITE);

    MenuBar menuBar = new MenuBar();
    menuBar.prefWidthProperty().bind(primaryStage.widthProperty());

    Menu menu = new Menu("File");

    MenuItem exitItem = new MenuItem("Exit", null);
    exitItem.setMnemonicParsing(true);/*from  ww w  .j  ava2  s. c o  m*/
    exitItem.setAccelerator(new KeyCodeCombination(KeyCode.X, KeyCombination.CONTROL_DOWN));
    exitItem.setOnAction(new EventHandler<ActionEvent>() {
        public void handle(ActionEvent event) {
            Platform.exit();
        }
    });
    menu.getItems().add(exitItem);

    menuBar.getMenus().add(menu);
    root.getChildren().add(menuBar);
    primaryStage.setScene(scene);
    primaryStage.show();
}

From source file:Main.java

@Override
public void start(Stage primaryStage) {
    primaryStage.setTitle("Keyboard");
    Group root = new Group();
    Scene scene = new Scene(root, 530, 300, Color.WHITE);

    MenuBar menuBar = new MenuBar();
    menuBar.prefWidthProperty().bind(primaryStage.widthProperty());
    root.getChildren().add(menuBar);/*from   www .  j  a  v a  2 s  .c o  m*/

    Menu menu = new Menu("File");
    menuBar.getMenus().add(menu);

    MenuItem newItem = MenuItemBuilder.create().text("New")
            .accelerator(new KeyCodeCombination(KeyCode.N, KeyCombination.CONTROL_DOWN))
            .onAction(new EventHandler<ActionEvent>() {
                public void handle(ActionEvent event) {
                    System.out.println("Ctrl-N");
                }
            }).build();
    menu.getItems().add(newItem);

    MenuItem saveItem = MenuItemBuilder.create().text("Save")
            .accelerator(new KeyCodeCombination(KeyCode.S, KeyCombination.CONTROL_DOWN))
            .onAction(new EventHandler<ActionEvent>() {
                public void handle(ActionEvent event) {
                    System.out.println("Ctrl-S");
                }
            }).build();
    menu.getItems().add(saveItem);

    menu.getItems().add(new SeparatorMenuItem());

    MenuItem exitItem = MenuItemBuilder.create().text("Exit")
            .accelerator(new KeyCodeCombination(KeyCode.X, KeyCombination.CONTROL_DOWN))
            .onAction(new EventHandler<ActionEvent>() {
                public void handle(ActionEvent event) {
                    System.out.println("Ctrl-X");
                }
            }).build();
    menu.getItems().add(exitItem);

    primaryStage.setScene(scene);
    primaryStage.show();
}

From source file:jviewmda.JViewMda.java

@Override
public void start(Stage primaryStage) {
    m_stage = primaryStage;/*from   w  w  w  .  j ava 2s .  c  o  m*/

    String array_path = "";
    Parameters params = getParameters();
    List<String> unnamed_params = params.getUnnamed();
    if (unnamed_params.size() > 0) {
        array_path = unnamed_params.get(0);
    }
    // FOR DEBUGING PURPOSES
    if (array_path.length() == 0) {
        //String debug_path = "/home/magland/wisdm/www/wisdmfileserver/files/fetalmri/sessions/SESSION1/crops/FNP001A-coronal.crop.mda";
        String debug_path = "/home/magland/data/LesionProbe/Images/ID001_FLAIR.nii";
        if ((new File(debug_path)).exists()) {
            array_path = debug_path;
        }
    }

    Menu menu;
    MenuItem item;

    MenuBar menubar = new MenuBar();

    //file menu
    menu = new Menu("File");
    menubar.getMenus().add(menu);
    item = new MenuItem("Open...");
    item.setAccelerator(new KeyCodeCombination(KeyCode.O, KeyCombination.CONTROL_DOWN));
    item.setOnAction(e -> on_file_open());
    menu.getItems().add(item);
    item = new MenuItem("Save As...");
    item.setAccelerator(new KeyCodeCombination(KeyCode.S, KeyCombination.CONTROL_DOWN));
    item.setOnAction(e -> on_file_saveas());
    menu.getItems().add(item);
    menu.getItems().add(new SeparatorMenuItem()); /////////////////////////////////////////////
    item = new MenuItem("Exit");
    item.setAccelerator(new KeyCodeCombination(KeyCode.X, KeyCombination.CONTROL_DOWN));
    item.setOnAction(e -> on_file_exit());
    menu.getItems().add(item);

    //view menu
    menu = new Menu("View");
    menubar.getMenus().add(menu);
    item = new MenuItem("Zoom In");
    item.setAccelerator(new KeyCodeCombination(KeyCode.Z, KeyCombination.CONTROL_DOWN));
    item.setOnAction(e -> on_zoom_in());
    menu.getItems().add(item);
    item = new MenuItem("Zoom Out");
    item.setAccelerator(
            new KeyCodeCombination(KeyCode.Z, KeyCombination.CONTROL_DOWN, KeyCombination.SHIFT_DOWN));
    item.setOnAction(e -> on_zoom_out());
    menu.getItems().add(item);
    menu.getItems().add(new SeparatorMenuItem()); /////////////////////////////////////////////
    {
        CheckMenuItem item0 = new CheckMenuItem("Top Controls");
        item0.setSelected(true);
        item0.setOnAction(e -> {
            m_widget.setTopControlsVisible(item0.isSelected());
        });
        menu.getItems().add(item0);
    }
    {
        CheckMenuItem item0 = new CheckMenuItem("Bottom Controls");
        item0.setSelected(true);
        item0.setOnAction(e -> {
            m_widget.setBottomControlsVisible(item0.isSelected());
        });
        menu.getItems().add(item0);
    }
    {
        CheckMenuItem item0 = new CheckMenuItem("Brightness/Contrast");
        item0.setSelected(true);
        item0.setOnAction(e -> {
            m_widget.setBrightnessContrastVisible(item0.isSelected());
        });
        menu.getItems().add(item0);
    }
    {
        CheckMenuItem item0 = new CheckMenuItem("Slice Slider");
        item0.setSelected(true);
        item0.setOnAction(e -> {
            m_widget.setSliceSliderVisible(item0.isSelected());
        });
        menu.getItems().add(item0);
    }

    //selection menu
    menu = new Menu("Selection");
    menubar.getMenus().add(menu);
    Map<String, CheckMenuItem> mode_items = new HashMap<>();
    m_selection_mode_items = mode_items;
    mode_items.put("rectangle", new CheckMenuItem("Rectangle"));
    mode_items.put("ellipse", new CheckMenuItem("Ellipse"));
    Set<String> keys = mode_items.keySet();
    for (String key : keys) {
        CheckMenuItem item0 = mode_items.get(key);
        menu.getItems().add(item0);
        item0.setOnAction(evt -> {
            on_selection_mode_changed(key);
        });

    }
    mode_items.get("rectangle").setSelected(true);

    VBox root = new VBox();
    root.getChildren().addAll(menubar, m_widget);

    Scene scene = new Scene(root, 500, 450);

    primaryStage.setTitle("JViewMda");
    primaryStage.setScene(scene);
    primaryStage.show();

    if (array_path.length() > 0) {
        open_file(array_path);
    }

    m_prefs = Preferences.userNodeForPackage(this.getClass());

}

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 w w. j  a v a2  s . com*/
    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());
            }
        }
    });

}