/// <summary>
/// Fires the <see cref="TabClosing" /> event.
/// </summary>
/// <param name="e">
/// Some <see cref="TabClosingEventArgs"/> for the event.
/// </param>
protected virtual void OnTabClosing(TabClosingEventArgs e)
{
if (this.Controls.Count <= 2) e.Cancel = true;
if(TabClosing != null)
{
TabClosing(this, e);
}
}
/// <summary>
/// Overridden. Inherited from <see cref="Control"/>.
/// </summary>
/// <param name="mea">
/// See <see cref="Control.OnMouseDown(MouseEventArgs)"/>.
/// </param>
protected override void OnMouseDown(MouseEventArgs mea)
{
base.OnMouseDown(mea);
Point p;
//see if user clicked on close button
p = mea.Location;
for (int i = 0; i <= yaLastVisibleTabIndex; i++)
{
var tag = this.Controls[i].Tag;
if (tag != null && tag.ToString() == "NEW_TAB")
{
continue;
}
var tabRectangle = GetTabRect(i);
var clickRectangle = GetRectangleClose(tabRectangle, 2); //slightly larger target area for the mouse (x image padding)
if (clickRectangle.Contains(p))
{
var etc = new TabClosingEventArgs();
OnTabClosing(etc);
if (!etc.Cancel)
{
Controls.RemoveAt(i);
InU();
this.SelectedIndex = i - 1;
OnTabChanged(new EventArgs());
return;
}
}
}
//done checking for close event
p = new Point(mea.X - 2 * yaMargin, mea.Y);
switch (yaTabDock)
{
case DockStyle.Bottom:
p.Y -= yaClientRectangle.Height;
break;
case DockStyle.Left:
p.Y = mea.X;
p.X = Height - mea.Y;
break;
case DockStyle.Right:
p.Y = Width - mea.X;
p.X = mea.Y;
break;
}
if (p.Y > yaMargin && p.Y < Convert.ToInt32(yaTabSpan + 3.0f * yaMargin))
{
if ((yaShowScrollButtons == YaScrollButtonStyle.Always || (yaShowScrollButtons == YaScrollButtonStyle.Auto && yaTotalTabSpan > calcWidth)) && p.X >= rightArrow[0].X - 3 * yaMargin)
{
if (canScrollRight)
{
yaKeepScrolling = true;
ScrollerThread st = new ScrollerThread(2, this);
Thread t = new Thread(new ThreadStart(st.ScrollIt));
t.Start();
}
}
else if ((yaShowScrollButtons == YaScrollButtonStyle.Always || (yaShowScrollButtons == YaScrollButtonStyle.Auto && yaTotalTabSpan > calcWidth)) && p.X >= leftArrow[2].X - 3 * yaMargin)
{
if (canScrollLeft)
{
yaKeepScrolling = true;
ScrollerThread st = new ScrollerThread(-2, this);
Thread t = new Thread(new ThreadStart(st.ScrollIt));
t.Start();
}
}
else
{
int t = -Convert.ToInt32(yaTabLeftDif);
for (int i = 0; i <= yaLastVisibleTabIndex; i++)
{
if (p.X >= t && p.X < t + Convert.ToInt32(yaTabLengths[i]))
{
SelectedIndex = i;
break;
}
t += Convert.ToInt32(yaTabLengths[i]);
}
}
}
}