Examples with MenuItem org.eclipse.swt.widgets.MenuItem used on opensource projects

Example 21 with MenuItem

use of org.eclipse.swt.widgets.MenuItem in project cogtool by cogtool.

the class MenuFactory method ensureNexusCascade.

// createNexusCascade
protected static Menu ensureNexusCascade(Menu windowMenu, MenuItem[] windowMenuItems, IWindowMenuData<?> menuData) {
    String nexusLabel = menuData.getNexusLabel();
    Class<?> nexusType = menuData.getNexusType();
    Object nexusData = menuData.getNexusData();
    int i;
    for (i = windowMenuItems.length; i > 0; i--) {
        MenuItem windowItem = windowMenuItems[i - 1];
        if ((windowItem.getStyle() == SWT.CASCADE) && (nexusType != null) && nexusType.isInstance(windowItem.getData())) {
            if (windowItem.getData() == nexusData) {
                return windowItem.getMenu();
            }
            // Check if the current nexus item comes after nexusLabel
            if (windowItem.getText().compareToIgnoreCase(nexusLabel) < 0) {
                break;
            }
        } else {
            // no longer within the group of nexus cascades
            break;
        }
    }
    return createNexusCascade(windowMenu, i, menuData);
}

Example 22 with MenuItem

use of org.eclipse.swt.widgets.MenuItem in project cogtool by cogtool.

the class MenuFactory method copyExistingNexusWindows.

protected static void copyExistingNexusWindows(MenuItem existingNexusItem, Menu newWindowMenu) {
    MenuItem newNexusItem = new MenuItem(newWindowMenu, SWT.CASCADE);
    newNexusItem.setText(existingNexusItem.getText());
    newNexusItem.setImage(existingNexusItem.getImage());
    // the nexus!
    newNexusItem.setData(existingNexusItem.getData());
    Menu newNexusMenu = new Menu(newWindowMenu.getShell(), SWT.DROP_DOWN);
    newNexusItem.setMenu(newNexusMenu);
    MenuItem[] nestedNexusItems = existingNexusItem.getMenu().getItems();
    for (MenuItem nestedNexusItem : nestedNexusItems) {
        MenuItem newNestedItem = new MenuItem(newNexusMenu, nestedNexusItem.getStyle());
        newNestedItem.setText(nestedNexusItem.getText());
        newNestedItem.setImage(nestedNexusItem.getImage());
        Object windowLID = nestedNexusItem.getData();
        if (windowLID != null) {
            newNestedItem.setData(windowLID);
            newNestedItem.addListener(SWT.Selection, windowItemSelectionListener);
        }
    }
}

Example 23 with MenuItem

use of org.eclipse.swt.widgets.MenuItem in project cogtool by cogtool.

the class MenuFactory method createNexusCascade.

// copyExistingWindows
protected static Menu createNexusCascade(Menu windowMenu, int index, IWindowMenuData<?> menuData) {
    MenuItem newNexusItem = (index != -1) ? new MenuItem(windowMenu, SWT.CASCADE, index) : new MenuItem(windowMenu, SWT.CASCADE);
    Menu cascadeParent = new Menu(windowMenu.getShell(), SWT.DROP_DOWN);
    newNexusItem.setMenu(cascadeParent);
    newNexusItem.setText(menuData.getNexusLabel());
    // the nexus!
    newNexusItem.setData(menuData.getNexusData());
    return cascadeParent;
}

Example 24 with MenuItem

use of org.eclipse.swt.widgets.MenuItem in project cogtool by cogtool.

the class MenuFactory method addWindowMenu.

// addToCascade
protected static void addWindowMenu(Menu newWindowMenu, IWindowMenuData<?> menuData) {
    if (windowMenus.size() > 0) {
        copyExistingWindows(windowMenus.get(0), newWindowMenu);
    }
    // Add to global registry
    windowMenus.add(newWindowMenu);
    newWindowMenu.setData(menuData);
    // i.e. the RootView will not be added!
    if (menuData.getNexusData() != null) {
        Iterator<Menu> menus = windowMenus.iterator();
        while (menus.hasNext()) {
            Menu windowMenu = menus.next();
            Menu nexusCascade = null;
            // Remove the last item if it is the NO_WINDOWS_SENTINEL
            MenuItem[] nexusItems = windowMenu.getItems();
            if (nexusItems.length > 0) {
                MenuItem lastItem = nexusItems[nexusItems.length - 1];
                if (lastItem.getData() == NO_WINDOWS_SENTINEL) {
                    lastItem.dispose();
                    nexusCascade = createNexusCascade(windowMenu, -1, menuData);
                }
            }
            if (nexusCascade == null) {
                nexusCascade = ensureNexusCascade(windowMenu, nexusItems, menuData);
            }
            addToCascade(nexusCascade, menuData);
        }
        newWindowMenu.addDisposeListener(new DisposeListener() {

            public void widgetDisposed(DisposeEvent e) {
                removeWindowMenu((Menu) e.getSource());
            }
        });
    } else {
        newWindowMenu.addDisposeListener(new DisposeListener() {

            public void widgetDisposed(DisposeEvent e) {
                windowMenus.remove(e.getSource());
            }
        });
    }
}

Example 25 with MenuItem

use of org.eclipse.swt.widgets.MenuItem in project cogtool by cogtool.

the class MenuFactory method removeNexusCascadeItem.

// Returns true if it removed the last item from the cascade
protected static boolean removeNexusCascadeItem(Menu fromNexusMenu, IWindowMenuData<?> menuData) {
    ListenerIdentifier itemLID = menuData.getLID();
    boolean precedingWasSeparator = false;
    MenuItem[] windowMenuItems = fromNexusMenu.getItems();
    int originalItemCount = windowMenuItems.length;
    int i;
    for (i = 0; i < originalItemCount; i++) {
        MenuItem windowItem = windowMenuItems[i];
        Object itemData = windowItem.getData();
        if (itemData == null) {
            // indicates a SEPARATOR
            precedingWasSeparator = true;
        } else if (itemData == itemLID) {
            windowItem.dispose();
            break;
        } else {
            precedingWasSeparator = false;
        }
    }
    if (i == originalItemCount) {
        throw new RcvrUIException("Cannot find window item");
    }
    // Check if we need to remove a SEPARATOR
    if (i == 0) {
        if ((originalItemCount > 1) && (windowMenuItems[1].getData() == null)) {
            // Removed first and second was a SEPARATOR; remove it
            windowMenuItems[1].dispose();
        }
    } else if (precedingWasSeparator) {
        // following item is also a SEPARATOR; if so, remove preceding.
        if (((i + 1) == originalItemCount) || (windowMenuItems[i + 1].getData() == null)) {
            windowMenuItems[i - 1].dispose();
        }
    }
    // Return true if no items remain
    return fromNexusMenu.getItems().length == 0;
}