public static void ApplyPreferredSize(Control control)
{
if (AutoSizePanel.CanAutoSizeWidth(control) || AutoSizePanel.CanAutoSizeHeight(control))
{
Size fitToContentsSize = AutoSizePanel.GetFitToContentsSize(control);
if (control.Size != fitToContentsSize)
{
control.Size = AutoSizePanel.GetAutoSizeModeSize(control, fitToContentsSize);
}
}
}
public static Size GetFitToContentsSize(Control control)
{
if (control.HasChildren)
{
int num = int.MinValue;
int num2 = int.MinValue;
int num3 = 0;
int num4 = 0;
bool flag = false;
bool flag2 = true;
bool flag3 = true;
for (int i = 0; i < control.Controls.Count; i++)
{
Control control2 = control.Controls[i];
if (control2.Visible)
{
flag = true;
switch (control2.Dock)
{
case DockStyle.None:
{
flag2 = false;
flag3 = false;
Size size = control2.Size;
num = Math.Max(num, control2.Left + size.Width);
num2 = Math.Max(num2, control2.Top + size.Height);
break;
}
case DockStyle.Top:
case DockStyle.Bottom:
flag3 = false;
num4 += control2.Height;
break;
case DockStyle.Left:
case DockStyle.Right:
flag2 = false;
num3 += control2.Width;
break;
case DockStyle.Fill:
num3 += control2.Width;
num4 += control2.Height;
break;
}
}
}
ScrollableControl scrollableControl = control as ScrollableControl;
if (scrollableControl != null)
{
ScrollableControl.DockPaddingEdges dockPadding = scrollableControl.DockPadding;
num += dockPadding.Right;
num2 += dockPadding.Bottom;
num3 += dockPadding.Left + dockPadding.Right;
num4 += dockPadding.Top + dockPadding.Bottom;
}
num = Math.Max(num, num3);
num2 = Math.Max(num2, num4);
if (!flag || !AutoSizePanel.CanAutoSizeWidth(control) || flag2)
{
num = control.Size.Width;
}
if (!flag || !AutoSizePanel.CanAutoSizeHeight(control) || flag3)
{
num2 = control.Size.Height;
}
return(AutoSizePanel.GetAutoSizeModeSize(control, new Size(num, num2)));
}
return(control.Size);
}
