public void InsertTab(int index, string title)
{
var tab = new SheetTabItem(this, title)
{
Height = this.canvas.Height,
};
this.canvas.Width += tab.Width + 1;
this.canvas.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(tab.Width + 1)
});
this.canvas.Children.Add(tab);
Grid.SetColumn(tab, index);
tab.MouseDown += (s, e) =>
{
var arg = new SheetTabMouseEventArgs()
{
Handled = false,
Location = e.GetPosition(this),
Index = index,
MouseButtons = WPFUtility.ConvertToUIMouseButtons(e),
};
if (this.TabMouseDown != null)
{
this.TabMouseDown(this, arg);
}
if (!arg.Handled)
{
this.SelectedIndex = index;
}
};
if (this.canvas.Children.Count == 1)
{
tab.IsSelected = true;
}
}
private void Tab_MouseDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
var index = this.canvas.Children.IndexOf((UIElement)sender);
var arg = new SheetTabMouseEventArgs()
{
Handled = false,
Location = e.GetPosition(this),
Index = index,
MouseButtons = WPFUtility.ConvertToUIMouseButtons(e),
};
if (this.TabMouseDown != null)
{
this.TabMouseDown(this, arg);
}
if (!arg.Handled)
{
this.SelectedIndex = index;
}
}
/// <summary>
/// Override system mouse down event
/// </summary>
/// <param name="e">mouse down event argument</param>
protected override void OnMouseDown(MouseEventArgs e)
{
this.leftScrollPressed = this.rightScrollPressed = false;
// scroll buttons
if (e.X < leftPadding)
{
if (e.Button == System.Windows.Forms.MouseButtons.Left)
{
var hwp = leftPadding / 2;
if (e.X < hwp)
{
this.leftScrollPressed = true;
}
else
{
this.rightScrollPressed = true;
}
if (this.leftScrollPressed || this.rightScrollPressed)
{
if (timer == null)
{
timer = new Timer {
Interval = 10
};
timer.Tick += timer_Tick;
}
timer.Enabled = true;
}
}
else if (e.Button == System.Windows.Forms.MouseButtons.Right)
{
if (this.SheetListClick != null)
{
this.SheetListClick(this, null);
}
}
}
// splitter
else if (e.X > this.ClientRectangle.Right - 8)
{
this.splitterPressed = true;
this.Capture = true;
}
else if (e.X < this.ClientRectangle.Right - 8 && e.X > this.ClientRectangle.Right - 28 &&
this.NewButtonVisible)
{
if (this.NewSheetClick != null)
{
this.NewSheetClick(this, null);
}
}
else
{
int index = GetItemByPoint(e.X);
if (index != -1)
{
if (selectedIndex != index)
{
selectedIndex = index;
Invalidate();
if (SelectedIndexChanged != null)
{
SelectedIndexChanged(this, null);
}
}
bool processed = false;
if (this.TabMouseDown != null)
{
var arg = new SheetTabMouseEventArgs
{
Location = e.Location,
MouseButtons = (unvell.ReoGrid.Interaction.MouseButtons)e.Button,
Handled = false,
};
this.TabMouseDown(this, arg);
processed = arg.Handled;
}
if (!processed)
{
movingStartIndex = index;
movingHoverIndex = -1;
Capture = true;
}
}
}
}
