public void LayoutContainer(Container parent)
{
if (parent.ControlCount > 0)
{
Size offset = new Size();
Size preferredTotal = PreferredLayoutSize(parent);
Size minTotal = MinimumLayoutSize(parent);
Size maxTotal = MaximumLayoutSize(parent);
Size parentSize = parent.Size - new Size(parent.Margin*2, parent.Margin*2);
if (parentSize.Width < 0 || parentSize.Height < 0)
parentSize = new Size();
Dimension parentPosition = new Dimension(parent.Position.X + parent.Margin, parent.Position.Y + parent.Margin);
int sizeCase = 0;
// resize parent?
if (parentSize.Height == 0 || parentSize.Width == 0)
{
parentSize = preferredTotal;
parent.Size = preferredTotal + new Size(parent.Margin*2, parent.Margin*2);
//sizeCase = -1;
}
// parent too small for minimum?
if (parentSize.Height < minTotal.Height || parentSize.Width < minTotal.Width)
{
// clip
sizeCase = 0;
if (parent.AutoResize)
{
if(parentSize.Height < preferredTotal.Height)
parentSize.Height = preferredTotal.Height;
if (parentSize.Width < preferredTotal.Width)
parentSize.Width = preferredTotal.Width;
sizeCase = 2;
}
}
// Parent too small to preffered?
else if (parentSize.Width < preferredTotal.Width || parentSize.Height < preferredTotal.Height)
{
// Use minimum
//minimum = true;
//preferredTotal = MinimumLayoutSize(parent);
sizeCase = 1;
}
// Parent too small to use maximum?
else if (parentSize.Width < maxTotal.Width || parentSize.Height < maxTotal.Height)
{
// Use preferred
//
sizeCase = 2;
}
// parent fits maximum?
else
{
// Use maximum
sizeCase = 3;
}
foreach (Control control in parent.Controls)
{
Size controlSize = new Size();
switch (sizeCase)
{
case 0:
// Use Clipping
break;
case 1:
// Use minimum
controlSize = control.GetMinimumSize();
break;
case 2:
// Use preferred
controlSize = control.GetPreferredSize();
//if (horizontal)
//{
// controlSize = new Size(pref.Width, parentSize.Height);
//}
//else
//{
// controlSize = new Size(parentSize.Width, pref.Height);
//}
break;
case 3:
// Use maximum
controlSize = control.GetMaximumSize();
break;
}
//Size pref;
//if (!minimum)
// pref = control.GetPreferredSize();
//else
// pref = control.GetMinimumSize();
control.Size = controlSize;
if (!centered)
{
control.Position = new Dimension(parentPosition.X + offset.Width, parentPosition.Y + offset.Height);
}
else
{
int centerxoffset = (horizontal ? 0 : (parentSize.Width - controlSize.Width) / 2);
int centeryoffset = (!horizontal ? 0 : (parentSize.Height - controlSize.Height) / 2);
control.Position = new Dimension(parentPosition.X + offset.Width + centerxoffset, parentPosition.Y + offset.Height + centeryoffset);
}
control.Bound = new System.Drawing.Rectangle(control.Position.X, control.Position.Y, controlSize.Width, controlSize.Height);
if (horizontal)
{
offset.Width += controlSize.Width + Margin;
}
else
{
offset.Height += controlSize.Height + Margin;
}
}
foreach (Control control in parent.Controls)
{
if (control is Container)
((Container)control).DoLayout();
}
}
}
public Size MinimumLayoutSize(Container parent)
{
Size result = new Size();
foreach (Control control in parent.Controls)
{
Size dim = control.GetMinimumSize();
if (horizontal)
{
result.Width += dim.Width + Margin;
if (dim.Height > result.Height)
result.Height = dim.Height;
}
else
{
result.Height += dim.Height + Margin;
if (dim.Width > result.Width)
result.Width = dim.Width;
}
}
if (horizontal)
result.Width -= Margin;
else
result.Width -= Margin;
return result;
}
public Size PreferredLayoutSize(Container parent)
{
Size result = new Size();
foreach (Control control in parent.Controls)
{
Size dim = control.GetPreferredSize();
if (horizontal)
{
result.Width += dim.Width + Margin;
if (dim.Height > result.Height)
result.Height = dim.Height;
}
else
{
result.Height += dim.Height + Margin;
if (dim.Width > result.Width)
result.Width = dim.Width;
}
}
if (horizontal)
result.Width -= Margin;
else
result.Width -= Margin;
if (result.Width < parent.PreferredSize.Width && parent.PreferredSize.Width != 0)
result.Width = parent.PreferredSize.Width;
if (result.Height < parent.PreferredSize.Height && parent.PreferredSize.Height != 0)
result.Height = parent.PreferredSize.Height;
return result;
}
public Size MaximumLayoutSize(Container parent)
{
Size max = new Size();
foreach (Control control in parent.Controls)
{
Size size = control.GetMaximumSize();
if (horizontal)
{
//max controls height
if (size.Height > max.Height)
max.Height = size.Height;
//sum controls width
max.Width += size.Width;
}
else
{
//max controls width
if (size.Width > max.Width)
max.Width = size.Width;
//sum controls height
max.Height += size.Height;
}
}
return max;
}
