/// <summary>
/// Subscribe to the events of this NavMenu's TopMenus. We should monitor them and then bubble them upwards via this menu's own NavigationMenuEvent.
/// </summary>
/// <param name="topMenu">The TopMenu effecting the event.</param>
/// <param name="eventType">The type of event handled.</param>
public void TopMenuEventHandler(TopMenu topMenu, TopMenuEventType eventType)
{
// Determine the type of event and handle it accordingly
switch (eventType)
{
// A TopMenu has been modified (buttons added or removed)
case TopMenuEventType.MENU_MODIFIED:
{
if (_navMenuEvent != null)
{
// Bubble this event upwards
_navMenuEvent(this, NavigationMenuEventType.MENU_MODIFIED);
}
break;
}
// One of the MenuItems in this TopMenu were selected
case TopMenuEventType.MENUITEM_SELECTED:
{
if (_navMenuEvent != null)
{
_navMenuEvent(this, NavigationMenuEventType.MENUITEM_SELECTED);
}
break;
}
// The TopMenu itself was selected
case TopMenuEventType.TOPMENU_SELECTED:
{
// De-select the old TopMenu
_selectedTopMenu.IsSelected = false;
// Set the new TopMenu
_selectedTopMenu = topMenu;
// Set the newly selected TopMenu to selected
_selectedTopMenu.IsSelected = true;
// Bubble the event up
if (_navMenuEvent != null)
{
_navMenuEvent(this, NavigationMenuEventType.TOPMENU_SELECTED);
}
break;
}
}
}
/// <summary>
/// Add another TopMenu to this NavigationMenu.
/// </summary>
/// <param name="topMenu">The new TopMenu to be added.</param>
public void AddTopMenu(TopMenu topMenu)
{
// Get an Enumerator for the collection of TopMenus
IEnumerator <TopMenu> topMenusEnum = _topMenus.GetEnumerator();
// Determine if the TopMenu already exists
while (topMenusEnum.MoveNext())
{
if (topMenusEnum.Current.MenuId.Equals(topMenu.MenuId))
{
topMenusEnum.Dispose();
throw new ApplicationException("Attempting to add TopMenu with non-unique ID.");
}
}
// Add our TopMenu event handler to the TopMenuEvent for this new menu
topMenu.AddTopMenuEventListener(TopMenuEventHandler);
// If no matches are found, add the new TopMenu
_topMenus.Add(topMenu);
// If this is the first TopMenu to be added, default it to selected
if (_topMenus.Count == 1)
{
// Set the TopMenu to selected
topMenu.IsSelected = true;
// Store a reference to the selected TopMenu
_selectedTopMenu = topMenu;
}
// Trigger a NavigationMenuEvent
if (_navMenuEvent != null)
{
_navMenuEvent(this, NavigationMenuEventType.MENU_MODIFIED);
}
}
/// <summary>
/// Add another TopMenu to this NavigationMenu.
/// </summary>
/// <param name="topMenu">The new TopMenu to be added.</param>
public void AddTopMenu(TopMenu topMenu)
{
// Get an Enumerator for the collection of TopMenus
IEnumerator<TopMenu> topMenusEnum = _topMenus.GetEnumerator();
// Determine if the TopMenu already exists
while (topMenusEnum.MoveNext())
{
if (topMenusEnum.Current.MenuId.Equals(topMenu.MenuId))
{
topMenusEnum.Dispose();
throw new ApplicationException("Attempting to add TopMenu with non-unique ID.");
}
}
// Add our TopMenu event handler to the TopMenuEvent for this new menu
topMenu.AddTopMenuEventListener(TopMenuEventHandler);
// If no matches are found, add the new TopMenu
_topMenus.Add(topMenu);
// If this is the first TopMenu to be added, default it to selected
if (_topMenus.Count == 1)
{
// Set the TopMenu to selected
topMenu.IsSelected = true;
// Store a reference to the selected TopMenu
_selectedTopMenu = topMenu;
}
// Trigger a NavigationMenuEvent
if (_navMenuEvent != null)
{
_navMenuEvent(this, NavigationMenuEventType.MENU_MODIFIED);
}
}
/// <summary>
/// Removes a TopMenu by its ID.
/// </summary>
/// <param name="topMenuId">The ID of the TopMenu to be removed.</param>
public void RemoveTopMenu(string topMenuId)
{
// Get an Enumerator for the collections of TopMenus
IEnumerator <TopMenu> topMenuItems = _topMenus.GetEnumerator();
// Store a reference to the item to be removed
TopMenu toRemove = null;
while (topMenuItems.MoveNext())
{
// If it does, remove it
if (topMenuItems.Current.MenuId.Equals(topMenuId))
{
toRemove = topMenuItems.Current;
topMenuItems.Dispose();
return;
}
}
// If no matching item was found, throw and exception
if (toRemove == null)
{
throw new ApplicationException("No TopMenu with a matching ID was found to be removed.");
}
else
{
// A match was found, so remove it
_topMenus.Remove(toRemove);
// Trigger a NavigationMenuEvent
if (_navMenuEvent != null)
{
_navMenuEvent(this, NavigationMenuEventType.MENU_MODIFIED);
}
}
}
/// <summary>
/// Subscribe to the events of this NavMenu's TopMenus. We should monitor them and then bubble them upwards via this menu's own NavigationMenuEvent.
/// </summary>
/// <param name="topMenu">The TopMenu effecting the event.</param>
/// <param name="eventType">The type of event handled.</param>
public void TopMenuEventHandler(TopMenu topMenu, TopMenuEventType eventType)
{
// Determine the type of event and handle it accordingly
switch (eventType)
{
// A TopMenu has been modified (buttons added or removed)
case TopMenuEventType.MENU_MODIFIED:
{
if (_navMenuEvent != null)
{
// Bubble this event upwards
_navMenuEvent(this, NavigationMenuEventType.MENU_MODIFIED);
}
break;
}
// One of the MenuItems in this TopMenu were selected
case TopMenuEventType.MENUITEM_SELECTED:
{
if (_navMenuEvent != null)
{
_navMenuEvent(this, NavigationMenuEventType.MENUITEM_SELECTED);
}
break;
}
// The TopMenu itself was selected
case TopMenuEventType.TOPMENU_SELECTED:
{
// De-select the old TopMenu
_selectedTopMenu.IsSelected = false;
// Set the new TopMenu
_selectedTopMenu = topMenu;
// Set the newly selected TopMenu to selected
_selectedTopMenu.IsSelected = true;
// Bubble the event up
if (_navMenuEvent != null)
{
_navMenuEvent(this, NavigationMenuEventType.TOPMENU_SELECTED);
}
break;
}
}
}
/// <summary>
/// Handles post-render tasks.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BuildMenu()
{
DataStructures.MenuItem newMenuItem;
/*
* Build the NavigationMenu's data structure
*/
TopMenu mainMenu = new TopMenu(Variables.TOP_MENU_ITEM_ID_MAIN, "Main");
mainMenu.AddMenuItem(new DataStructures.MenuItem(Variables.MENU_ITEM_ID_HOME, "Home", "pack://application:,,,/ObdExpress;component/UI/Images/home_32.png"));
mainMenu.AddMenuItem(new DataStructures.MenuItem(Variables.MENU_ITEM_ID_TROUBLE_CODES, "Troubleshooting", "pack://application:,,,/ObdExpress;component/UI/Images/warning_32.png"));
TopMenu configMenu = new TopMenu(Variables.TOP_MENU_ITEM_ID_CONFIGURATION, "Configuration");
configMenu.AddMenuItem(new DataStructures.MenuItem(Variables.MENU_ITEM_ID_CONFIGURATION, "Connection", "pack://application:,,,/ObdExpress;component/Ui/Images/connect.png"));
_navMenu.AddTopMenu(mainMenu);
_navMenu.AddTopMenu(configMenu);
/*
* Attach our event handler
*/
_navMenu.AddNavigationMenuEventListener(NavigationMenuEventHandler);
/*
* Render the NavigationMenu in the GUI
*/
RenderNavigationMenu();
}