public void PerformCloseButtonClick(TabStripButton button)
{
if (button.CanClose)
{
OnCloseButtonClicked(new ToolStripItemEventArgs(button));
}
}
private void SetSelectedTab(TabStripButton value, bool force)
{
if (force || (_selectedTab != value))
{
if (!force)
{
var e = new CancelEventArgs();
OnSelectedTabChanging(e);
if (e.Cancel)
{
return;
}
}
_selectedIndex = -1;
_selectedTab = value;
int index = 0;
foreach (var tab in ItemsOfType <TabStripButton>())
{
if (tab == _selectedTab)
{
_selectedIndex = index;
}
tab.Checked = (tab == _selectedTab);
++index;
}
PerformLayout();
OnSelectedTabChanged(EventArgs.Empty);
}
}
private int GetDropTabIndex(TabStripButton tabOver, Point pt)
{
if (tabOver == null)
{
return(-1);
}
var tabPt = GetPointRelativeTo(tabOver, pt);
var tabOverIndex = _owner.Items.IndexOf(tabOver);
var draggedTabIndex = _owner.Items.IndexOf(_draggedTab);
bool isOnFarSide = false;
if (_owner.RightToLeft == RightToLeft.Yes)
{
isOnFarSide = (tabPt.X <= (tabOver.Width * (1 - LeftRightRatio)));
}
else
{
isOnFarSide = (tabPt.X > (tabOver.Width * LeftRightRatio));
}
if (isOnFarSide && (_draggedTab != tabOver))
{
return(tabOverIndex + 1);
}
else if (tabOverIndex == draggedTabIndex + 1)
{
return(draggedTabIndex);
}
return(tabOverIndex);
}
private void AddRange(IList <AeroTabPage> pages)
{
//BeginUpdate();
//try
//{
var buttons = new TabStripButton[pages.Count];
for (int i = 0; i < pages.Count; ++i)
{
pages[i].Visible = false;
pages[i].Dock = DockStyle.Fill;
buttons[i] = pages[i].TabStripButton;
}
_pages.AddRange(pages);
_tabStrip.SuspendLayout();
_tabStrip.Items.AddRange(buttons);
_tabStrip.ResumeLayout();
UpdateTabStripVisibility();
//}
//finally
//{
// EndUpdate();
//}
}
private void EndDrag()
{
if (_draggedTab != null)
{
_draggedTab = null;
_draggedTabIndex = -1;
_owner.TabInsertionPoint = -1;
_owner.Capture = false;
Cursor.Current = Cursors.Default;
}
}
public TabListDropDownMenuItem(TabStripButton button)
: base(button.Text)
{
_button = button;
if (button == button.Owner.SelectedTab)
{
Checked = true;
Font = new Font(Font, FontStyle.Bold);
}
else
{
Image = button.Image;
}
}
public CloseButtonAccessibleObject(TabStripButton owner)
{
_owner = owner;
}
public TabStripButtonAccessibleObject(TabStripButton button)
: base(button)
{
_owner = button;
}
public void WmMouseMove(IntPtr wParam, Point pt)
{
const int MK_LBUTTON = 0x1;
if ((wParam.ToInt32() & MK_LBUTTON) == 0)
{
EndDrag();
return;
}
var mouseOverTab = GetTabAt(pt);
if (mouseOverTab != null)
{
if (_lastMouseDown.HasValue)
{
int dx = Math.Abs(_lastMouseDown.Value.X - pt.X);
int dy = Math.Abs(_lastMouseDown.Value.Y - pt.Y);
if ((dx > SystemInformation.DragSize.Width) ||
(dy > SystemInformation.DragSize.Height))
{
_draggedTab = mouseOverTab;
_draggedTabIndex = _owner.Items.IndexOf(mouseOverTab);
_lastMouseDown = null;
}
}
}
if (_draggedTab != null)
{
_owner.Capture = true;
if (mouseOverTab != null)
{
Cursor.Current = TabDragCursor;
var dropTabIndex = GetDropTabIndex(mouseOverTab, pt);
if (dropTabIndex == _owner.Items.Count)
{
if (_owner.RightToLeft == RightToLeft.Yes)
{
_owner.TabInsertionPoint = _owner.Items[dropTabIndex - 1].Bounds.Left;
}
else
{
_owner.TabInsertionPoint = _owner.Items[dropTabIndex - 1].Bounds.Right - TabStripLayoutEngine.TabOverlap;
}
}
else
{
if (_owner.RightToLeft == RightToLeft.Yes)
{
_owner.TabInsertionPoint = _owner.Items[dropTabIndex].Bounds.Right - TabStripLayoutEngine.TabOverlap;
}
else
{
_owner.TabInsertionPoint = _owner.Items[dropTabIndex].Bounds.Left;
}
}
}
else
{
Cursor.Current = Resources.Images.TabDropNA;
_owner.TabInsertionPoint = -1;
}
}
}
