private void LeftResize(MouseEventArgs e)
{
if ((e.Location.X > this.ClientRectangle.Left + offsetStep) &&
(e.Location.X >= this.oldMousePos.X))
{
SuspendLayout();
int width = this.GetPreferredWidthToShrink();
if (width > 0)
{
if (this.Size.Width - width > this.MinimumSize.Width)
{
ToolStripFlowLayout layout = (this.Controls[0] as RadToolStripItemControl).ContainerElement.StackLayoutPanel;
this.Size = new Size(this.Size.Width - width, this.Size.Height);
this.Location = new Point(this.Location.X + width, this.Location.Y);
RadItem bottomMoseItem = this.GetBottomMostItem();
this.Size = new Size(this.Size.Width, this.CaptionHeight + 4 + bottomMoseItem.Bounds.Bottom);
offsetPoint = e.Location;
}
}
ResumeLayout(true);
}
else
{
this.SuspendLayout();
if (this.shrinkWidths.Count > 0)
{
// extend
int width = this.shrinkWidths.Pop();
if (width > 0)
{
if ((-width - offsetStep > e.Location.X) && (this.PointToScreen(e.Location).X < this.PointToScreen(this.oldMousePos).X))
{
this.Size = new Size(this.Size.Width + width, this.Size.Height);
this.Location = new Point(this.Location.X - width, this.Location.Y);
ToolStripFlowLayout layout = (this.Controls[0] as RadToolStripItemControl).ContainerElement.StackLayoutPanel;
RadItem bottomMoseItem = this.GetBottomMostItem();
this.Size = new Size(this.Size.Width, this.CaptionHeight + 4 + bottomMoseItem.Bounds.Bottom);
offsetPoint = e.Location;
}
else
{
this.shrinkWidths.Push(width);
}
}
this.ResumeLayout(true);
}
}
this.oldMousePos = new Point(e.X, e.Y);
}
protected override void CreateChildElements()
{
if (this.containerForm == null)
{
return;
}
this.parentPanel = new ToolStripFlowLayout(containerForm);
this.parentPanel.AutoSizeMode = RadAutoSizeMode.WrapAroundChildren;
this.fill = new FillPrimitive();
this.fill.AutoSize = false;
this.Children.Add(fill);
this.Children.Add(this.parentPanel);
this.items.Owner = this.parentPanel;
RefreshItems();
}
private RadItem GetBottomMostItem()
{
ToolStripFlowLayout layout = (this.Controls[0] as RadToolStripItemControl).ContainerElement.StackLayoutPanel;
RadItem bottomMoseItem = null;
foreach (RadItem myItem in layout.Children)
{
if (bottomMoseItem == null)
{
bottomMoseItem = myItem;
}
else
{
if (bottomMoseItem.Bounds.Top < myItem.Bounds.Top)
{
bottomMoseItem = myItem;
}
}
}
return(bottomMoseItem);
}