private void InitializeToolBar()
{
m_items = new ToolBarItemCollection( this );
// We'll let the toolbar to send us messages for drawing
SetStyle( ControlStyles.UserPaint, false );
TabStop = false;
// Always on top
Dock = DockStyle.Top;
Attach();
}
void IChevron.Show( Control control, Point point )
{
if( m_bShowChevron )
{
// Don't try to show it again
// if we are showing it already
return;
}
m_bShowChevron = true;
ToolBarItemCollection chevronItems = new ToolBarItemCollection();
ToolBarItem lastItem;
Size size = ClientSize;
int currentCount = 0;
bool addItem = true;
bool hasComboBox = false;
for( int i = 0; i < m_items.Count; i++ )
{
bool IsSeparator = false;
RECT rect = new RECT();
WindowsAPI.SendMessage(Handle, ( int )ToolBarMessages.TB_GETITEMRECT, i, ref rect);
if( rect.right > size.Width )
{
ToolBarItem item = m_items[i];
if( item.ComboBox != null ) hasComboBox = true;
IsSeparator = ( item.Style == ToolBarItemStyle.Separator );
if( item.Visible )
{
if( ( !IsSeparator ) || ( chevronItems.Count != 0 ) )
{
// don't add it if previous item was a separator
currentCount = chevronItems.Count;
if( currentCount > 0 )
{
lastItem = chevronItems[currentCount-1];
if( lastItem.Style == ToolBarItemStyle.Separator && IsSeparator )
{
addItem = false;
}
}
if( addItem ) chevronItems.Add( item );
addItem = true;
}
}
}
}
// Don't show a separator as the last item of the context menu
int itemsCount = chevronItems.Count;
if( itemsCount > 0 )
{
lastItem = chevronItems[itemsCount-1];
if( lastItem.Style == ToolBarItemStyle.Separator )
{
chevronItems.RemoveAt( itemsCount-1 );
}
}
chevronMenu.Items = chevronItems;
chevronMenu.Style = VisualStyle.IDE;
chevronMenu.TrackPopup(control.PointToScreen( point ));
// Need to reparent the combobox to this toolbar in case
// there was a combobox that was displayed by the popup menu
if( hasComboBox )
{
// Run the logic for combobox visibility before reposition it
ToolbarSizeChanged( new NMREBARCHILDSIZE() );
for ( int i = 0; i < m_items.Count; i++ )
{
ToolBarItem item = m_items[i];
if( item.Style == ToolBarItemStyle.ComboBox && item.ComboBox != null )
{
WindowsAPI.SetParent( item.ComboBox.Handle, Handle );
WindowsAPI.ShowWindow( item.ComboBox.Handle, ( short )ShowWindowStyles.SW_SHOWNOACTIVATE );
ComboBoxBase cbb = ( ComboBoxBase )item.ComboBox;
cbb.ToolBarUse = true;
UpdateItem( i );
cbb.Invalidate();
}
}
}
m_bShowChevron = false;
}