/// <summary>
/// Calculates a child's new bounds according to its Dock property and applies AutoSizeToContents
/// </summary>
/// <param name="control">The child control.</param>
/// <param name="area">The area available to dock to.</param>
/// <returns>New bounds of the control.</returns>
public static Rectangle CalculateBounds(ControlBase control, ref Rectangle area)
{
if (control.IsHidden)
{
return(control.Bounds);
}
Rectangle ret = control.Bounds;
if (control.AutoSizeToContents)
{
ret.Size = control.GetSizeToFitContents();
}
ret.Size = ClampSize(control, ret.Size);
if (control.Dock == Dock.None)
{
return(ret);
}
Margin margin = control.Margin;
if (control.Dock == Dock.Fill)
{
ret = new Rectangle(area.X + control.Margin.Left,
area.Y + control.Margin.Top,
area.Width - control.Margin.Width,
area.Height - control.Margin.Height);
}
else if (control.Dock == Dock.Left)
{
ret = new Rectangle(area.X + margin.Left,
area.Y + margin.Top,
ret.Width,
area.Height - margin.Height);
int width = margin.Width + ret.Width;
area.X += width;
area.Width -= width;
}
else if (control.Dock == Dock.Right)
{
ret = new Rectangle((area.X + area.Width) - ret.Width - margin.Right,
area.Y + margin.Top,
ret.Width,
area.Height - margin.Height);
int width = margin.Width + ret.Width;
area.Width -= width;
}
else if (control.Dock == Dock.Top)
{
ret = new Rectangle(area.X + margin.Left,
area.Y + margin.Top,
area.Width - margin.Width,
ret.Height);
int height = margin.Height + ret.Height;
area.Y += height;
area.Height -= height;
}
else if (control.Dock == Dock.Bottom)
{
ret = new Rectangle(area.X + margin.Left,
(area.Y + area.Height) - ret.Height - margin.Bottom,
area.Width - margin.Width,
ret.Height);
int height = margin.Height + ret.Height;
area.Height -= height;
}
else
{
throw new Exception("Unhandled Dock Pos" + control.Dock);
}
return(ret);
}