/// <summary>
/// Handles the <see cref="TabPageCollection.TabPageRemoved"/> event of this
/// control's collection of <see cref="DropDownTabPage"/>s.
/// </summary>
/// <remarks>
/// This unwires the tab page from the control, and removes it to the <see cref="UI.Controls"/>
/// collection.
/// </remarks>
/// <param name="sender">The object that raised the event.</param>
/// <param name="e">A <see cref="DropDownTabControl.TabPageEventArgs"/> describing the event arguments.</param>
private void RemoveTabPage(object sender, DropDownTabControl.TabPageEventArgs e)
{
DropDownTabPage ctlPage = e.TabPage;
ctlPage.PageIndexChanged -= new EventHandler(PageIndexChanged);
ctlPage.TextChanged -= new EventHandler(PageTextChanged);
m_cbxSelector.Items.Remove(ctlPage);
for (Int32 i = 0; i < m_tpcPages.Count; i++)
{
if (m_tpcPages[i].PageIndex > ctlPage.PageIndex)
{
m_tpcPages[i].PageIndex--;
}
}
if (SelectedTabPage == ctlPage)
{
if (m_tpcPages.Count == 0)
{
SelectedTabPage = null;
}
else if (SelectedIndex == m_tpcPages.Count)
{
SelectedIndex--;
}
else
{
SelectedIndex++;
}
}
Controls.Remove(e.TabPage);
}
/// <summary>
/// Raises the <see cref="Control.ControlAdded"/> event.
/// </summary>
/// <remarks>
/// This ensures that any <see cref="DropDownTabPage"/>s removed from this control are removed
/// from the <see cref="TabPages"/> collection.
/// </remarks>
/// <param name="e">A <see cref="ControlEventArgs"/> describing the event arguments.</param>
protected override void OnControlRemoved(ControlEventArgs e)
{
base.OnControlRemoved(e);
if (e.Control is DropDownTabPage)
{
DropDownTabPage ctlPage = (DropDownTabPage)e.Control;
m_tpcPages.Remove(ctlPage);
}
}
/// <summary>
/// Creates an instance of an item for use in the collection being edited.
/// </summary>
/// <remarks>
/// This sets the text of the created <see cref="DropDownTabPage"/> to its
/// name.
/// </remarks>
/// <param name="p_tpeItemType">The type of the item to be created.</param>
/// <returns>A new object of the given type.</returns>
protected override object CreateInstance(Type p_tpeItemType)
{
object objNew = base.CreateInstance(p_tpeItemType);
DropDownTabPage dtpPage = objNew as DropDownTabPage;
if (dtpPage != null)
{
dtpPage.Text = dtpPage.Name;
}
return(objNew);
}
/// <summary>
/// Raises the <see cref="Control.ControlAdded"/> event.
/// </summary>
/// <remarks>
/// This ensures that any <see cref="DropDownTabPage"/>s added to this control are added
/// from the <see cref="TabPages"/> collection.
/// </remarks>
/// <param name="e">A <see cref="ControlEventArgs"/> describing the event arguments.</param>
protected override void OnControlAdded(ControlEventArgs e)
{
base.OnControlAdded(e);
if (e.Control is DropDownTabPage)
{
DropDownTabPage ctlPage = (DropDownTabPage)e.Control;
if (!m_tpcPages.Contains(ctlPage))
{
m_tpcPages.Add(ctlPage);
}
}
}
/// <summary>
/// Inserts the given <see cref="DropDownTabPage"/> into the selector drop box at the correct index based on the
/// tab's <see cref="DropDownTabPage.PageIndex"/>.
/// </summary>
/// <param name="p_ddpPage">The <see cref="DropDownTabPage"/> to insert.</param>
protected void InsertTabPageInSelector(DropDownTabPage p_ddpPage)
{
DropDownTabPage ddpCurrent = null;
for (Int32 i = 0; i < m_cbxSelector.Items.Count; i++)
{
ddpCurrent = (DropDownTabPage)m_cbxSelector.Items[i];
if (ddpCurrent.PageIndex > p_ddpPage.PageIndex)
{
m_cbxSelector.Items.Insert(i, p_ddpPage);
return;
}
}
m_cbxSelector.Items.Add(p_ddpPage);
}
/// <summary>
/// Adds default tag pages to a new <see cref="DropDownTabControl"/>.
/// </summary>
/// <param name="defaultValues">The values with which to instantiate the control.</param>
public override void InitializeNewComponent(IDictionary defaultValues)
{
base.InitializeNewComponent(defaultValues);
DropDownTabPage tpgPage = (DropDownTabPage)DesignerHost.CreateComponent(typeof(DropDownTabPage));
tpgPage.Text = tpgPage.Name;
tpgPage.BackColor = Color.FromKnownColor(KnownColor.Control);
DesignedTabControl.TabPages.Add(tpgPage);
tpgPage = (DropDownTabPage)DesignerHost.CreateComponent(typeof(DropDownTabPage));
tpgPage.Text = tpgPage.Name;
tpgPage.BackColor = Color.FromKnownColor(KnownColor.Control);
DesignedTabControl.TabPages.Add(tpgPage);
DesignedTabControl.SelectedIndex = 0;
}
/// <summary>
/// The event handler for the "Add Tab Page" verb.
/// </summary>
/// <remarks>
/// Adds a new tab page to the control.
/// </remarks>
/// <param name="sender">The object that triggered the event.</param>
/// <param name="e">An <see cref="EventArgs"/> describing the event arguments.</param>
private void AddTabPage(object sender, EventArgs e)
{
DropDownTabControl.TabPageCollection tpcOldPages = DesignedTabControl.TabPages;
RaiseComponentChanging(TypeDescriptor.GetProperties(DesignedTabControl)["TabPages"]);
DropDownTabPage tpgPage = (DropDownTabPage)DesignerHost.CreateComponent(typeof(DropDownTabPage));
tpgPage.Text = tpgPage.Name;
tpgPage.BackColor = Color.FromKnownColor(KnownColor.Control);
DesignedTabControl.TabPages.Add(tpgPage);
RaiseComponentChanged(TypeDescriptor.GetProperties(DesignedTabControl)["TabPages"], tpcOldPages, DesignedTabControl.TabPages);
DesignedTabControl.SelectedTabPage = tpgPage;
EnableVerbs();
}
/// <summary>
/// Handles the <see cref="TabPageCollection.TabPageAdded"/> event of this
/// control's collection of <see cref="DropDownTabPage"/>s.
/// </summary>
/// <remarks>
/// This wires the added tab page into the control, and adds it to the <see cref="UI.Controls"/>
/// collection.
/// </remarks>
/// <param name="sender">The object that raised the event.</param>
/// <param name="e">A <see cref="DropDownTabControl.TabPageEventArgs"/> describing the event arguments.</param>
private void AddTabPage(object sender, DropDownTabControl.TabPageEventArgs e)
{
DropDownTabPage ctlPage = e.TabPage;
if (ctlPage.PageIndex == -1)
{
ctlPage.PageIndex = m_tpcPages.Count - 1;
}
if (!m_tpcPages.Contains(ctlPage))
{
m_tpcPages.Add(ctlPage);
}
ctlPage.PageIndexChanged += new EventHandler(PageIndexChanged);
ctlPage.TextChanged += new EventHandler(PageTextChanged);
InsertTabPageInSelector(ctlPage);
ctlPage.Dock = DockStyle.Fill;
Controls.Add(e.TabPage);
SelectedTabPage = ctlPage;
}
/// <summary>
/// A simple consturctor that initializes the object with the given values.
/// </summary>
/// <param name="p_tpgPage">The tab page that was affected by the event.</param>
public TabPageEventArgs(DropDownTabPage p_tpgPage)
{
m_tpgPage = p_tpgPage;
}
