/// <summary>
/// Event handler for the "Add Tab" verb.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="ea">
/// Some <see cref="EventArgs"/>.
/// </param>
private void AddTab(object sender, EventArgs ea)
{
IDesignerHost dh = (IDesignerHost)GetService(typeof(IDesignerHost));
if (dh != null)
{
int selTab = _tabControl.SelectedIndex;
string name = GetNewTabName();
ImageTabPage itp = dh.CreateComponent(typeof(ImageTabPage), name) as ImageTabPage;
itp._index = _tabControl.TabPages.Count;// (_tabControl.Controls as ImageTabControl.ControlCollection).Count;
itp.Text = "Tab" + itp._index;
_tabControl.TabPages.Add(itp);
//_tabControl.Controls.Add(itp);
//ytp.Name = _tabControl.Name + "_Tab" + _tabControl.Controls.Count;
//ytp.Text = "Tab"+_tabControl.TabPages.Count;
//(_tabControl.Controls as ImageTabControl.ControlCollection).Add(itp);
_tabControl.CalculateTabLengths();
if (_tabControl.SelectedIndex < 0)
{
_tabControl.SelectedIndex = itp.Index;
//MessageBox.Show("index:" + ytp.Index);
RaiseComponentChanging(TypeDescriptor.GetProperties(Control)["SelectedIndex"]);
RaiseComponentChanged(TypeDescriptor.GetProperties(Control)["SelectedIndex"], selTab, _tabControl.SelectedIndex);
}
dh.Activate();
}
}
/// <summary>
/// Overridden. Inherited from <see cref="ControlDesigner"/>.
/// </summary>
/// <param name="m">
/// The message.
/// </param>
/// <remarks>
/// Checks for WM_LBUTTONDOWN events and uses that to
/// select the appropriate tab in the <see cref="ImageTabControl"/>.
/// </remarks>
protected override void WndProc(ref Message m)
{
try
{
int x = 0;
int y = 0;
if (_tabControl.Created && m.HWnd == _tabControl.Handle)
{
switch (m.Msg)
{
case WM_LBUTTONDOWN:
x = (m.LParam.ToInt32() << 16) >> 16;
y = m.LParam.ToInt32() >> 16;
int oi = _tabControl.SelectedIndex;
ImageTabPage ot = _tabControl.SelectedTab;
if (_tabControl.ScrollButtonStyle == YaScrollButtonStyle.Always && _tabControl.GetLeftScrollButtonRect().Contains(x, y))
{
_tabControl.ScrollTabs(-10);
}
else if (_tabControl.ScrollButtonStyle == YaScrollButtonStyle.Always && _tabControl.GetRightScrollButtonRect().Contains(x, y))
{
_tabControl.ScrollTabs(10);
}
else
{
for (int i = 0; i < (_tabControl.Controls as ImageTabControl.ControlCollection).Count; i++)
{
Rectangle r = _tabControl.GetTabRect(_tabControl.TabPages[i] as ImageTabPage);
if (r.Contains(x, y))
{
_tabControl.SelectedIndex = i;
RaiseComponentChanging(TypeDescriptor.GetProperties(Control)["SelectedIndex"]);
RaiseComponentChanged(TypeDescriptor.GetProperties(Control)["SelectedIndex"], oi, i);
break;
}
}
}
break;
case WM_LBUTTONDBLCLK:
x = (m.LParam.ToInt32() << 16) >> 16;
y = m.LParam.ToInt32() >> 16;
if (_tabControl.ScrollButtonStyle == YaScrollButtonStyle.Always && _tabControl.GetLeftScrollButtonRect().Contains(x, y))
{
_tabControl.ScrollTabs(-10);
}
else if (_tabControl.ScrollButtonStyle == YaScrollButtonStyle.Always && _tabControl.GetRightScrollButtonRect().Contains(x, y))
{
_tabControl.ScrollTabs(10);
}
return;
}
}
}
finally
{
base.WndProc(ref m);
}
}
/// <summary>
/// Event handler for the "Remove Tab" verb.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="ea">
/// Some <see cref="EventArgs"/>.
/// </param>
private void RemoveTab(object sender, EventArgs ea)
{
IDesignerHost dh = (IDesignerHost)GetService(typeof(IDesignerHost));
if (dh != null)
{
int i = _tabControl.SelectedIndex;
if (i > -1)
{
ImageTabPage ytp = _tabControl.SelectedTab;
(_tabControl.Controls as ImageTabControl.ControlCollection).Remove(ytp);
dh.DestroyComponent(ytp);
RaiseComponentChanging(TypeDescriptor.GetProperties(Control)["SelectedIndex"]);
RaiseComponentChanged(TypeDescriptor.GetProperties(Control)["SelectedIndex"], i, 0);
}
}
}
