public void Remove(LcarsTabPage Tab)
{
//Removes the given tab from the collection. I know... duh. But comments are necessary evils.
List.Remove(Tab);
Tab = null;
Parent.TabPagesChanged();
}
private void OnComponentRemoving(object sender, ComponentEventArgs e)
{
//This sub is fired when a control is removed from our LcarsTabControl.
IComponentChangeService c = (IComponentChangeService)GetService(typeof(IComponentChangeService));
LcarsTabPage mytabPage = null;
IDesignerHost h = (IDesignerHost)GetService(typeof(IDesignerHost));
int i = 0;
//If the user is removing a TabPage
if (e.Component is LcarsTabPage)
{
mytabPage = (LcarsTabPage)e.Component;
if (myControl.TabPages.Contains(mytabPage))
{
c.OnComponentChanging(myControl, null);
myControl.TabPages.Remove(mytabPage);
c.OnComponentChanged(myControl, null, null, null);
return;
}
}
//If the user is removing the control itself, remove all of the TabPages first.
if (object.ReferenceEquals(e.Component, myControl))
{
for (i = myControl.TabPages.Count - 1; i >= 0; i += -1)
{
mytabPage = myControl.TabPages[i];
c.OnComponentChanging(myControl, null);
myControl.TabPages.Remove(mytabPage);
h.DestroyComponent(mytabPage);
c.OnComponentChanged(myControl, null, null, null);
}
}
}
private void AddTab(object sender, EventArgs e)
{
//I don't understand everthing that goes on here. I know that the end result is a new
//tab being added to the LcarsTabPageControl.
//Our new tab
LcarsTabPage mytabpage = null;
//An instance of the IDesignerHost interface which allows us to create transactions
//in the designer.
IDesignerHost myHost = (IDesignerHost)GetService(typeof(IDesignerHost));
//A transaction. From what I read, I believe that this just allows our "Add Tab" to
//be undone using the "Undo" button.
DesignerTransaction myTransaction = default(DesignerTransaction);
//This is used to call events that are also used in the Undo and Redo functions.
IComponentChangeService myChangeService = (IComponentChangeService)GetService(typeof(IComponentChangeService));
//Set the name of the transaction. I believe this also sets the starting point.
myTransaction = myHost.CreateTransaction("Add Tab");
//Create a new LcarsTabPage using the DesignerHost.
mytabpage = (LcarsTabPage)myHost.CreateComponent(typeof(LcarsTabPage));
//Let Visual Studio know we changed a component (our LcarsTabControl)
myChangeService.OnComponentChanging(myControl, null);
//Add the tabpage to the tabcontrol.
myControl.TabPages.Add(mytabpage);
//Visual Studio... we changed it again.
myChangeService.OnComponentChanged(myControl, null, null, null);
//Finish the transaction so it knows when the "undo" should stop.
myTransaction.Commit();
}
private void ChangeTab(LcarsTabPage tab)
{
//Brings the provided tab to the front of all of the other tabs and sets it as
//the selected tab.
//NOTE: tab is used because if we used the property to set the selected tab,
//we would get into an 'endless loop' because the 'SelectedTab' property calls
//'ChangeTab' which in turn would call 'SelectedTab' again. Not good!
if (tab != null)
{
tab.BringToFront();
selectedTab = tab;
//Set the heading(the bar at the top)'s text to the tab's text
horizantalBar.Text = tab.Text;
//Set the selected tabs button's red alert to white and all others to normal
foreach (FlatButton mybutton in tabButtonPanel.Controls)
{
if (ReferenceEquals(mybutton.Tag, tab))
{
mybutton.AlertState = LcarsAlert.White;
}
else
{
mybutton.AlertState = LcarsAlert.Normal;
}
}
}
//Let the user of the control know that a tab has been selected.
SelectedTabChanged?.Invoke(tab, TabPages.IndexOf(tab));
}
public int Add(LcarsTabPage tab)
{
//Adds the supplied tab to the tab collection and returns it's new index
int i = 0;
i = List.Add(tab);
Parent.TabPagesChanged();
return(i);
}
public void MoveUp(LcarsTabPage tab)
{
int index = List.IndexOf(tab);
if (index > 0)
{
List[index] = List[index - 1];
List[index - 1] = tab;
}
Parent.TabPagesChanged();
}
public void MoveDown(LcarsTabPage tab)
{
int index = List.IndexOf(tab);
if (index < Count - 1)
{
List[index] = List[index + 1];
List[index + 1] = tab;
}
Parent.TabPagesChanged();
}
public int IndexOf(LcarsTabPage tab)
{
//Returns the index of the given tab in the collection
return(List.IndexOf(tab));
}
public bool Contains(LcarsTabPage tab)
{
//Returns 'true' if the tab is in the collection and 'false' if it is not.
return(List.Contains(tab));
}
public override void Initialize(IComponent component)
{
base.Initialize(component);
myControl = (LcarsTabPage)component;
}
