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using System;
using System.Diagnostics;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Serialization;
using System.ComponentModel;
namespace go
{
public class GenericStack : Group
{
#region CTOR
public GenericStack()
: base()
{
}
#endregion
#region Private fields
bool childrenArePositionned = false;
int _spacing;
Orientation _orientation;
#endregion
#region Public Properties
[XmlAttributeAttribute()][DefaultValue(2)]
public int Spacing
{
get { return _spacing; }
set { _spacing = value; }
}
[XmlAttributeAttribute()][DefaultValue(Orientation.Horizontal)]
public virtual Orientation Orientation
{
get { return _orientation; }
set { _orientation = value; }
}
#endregion
#region GraphicObject Overrides
[XmlAttributeAttribute()][DefaultValue(-1)]
public override int Width {
get { return base.Width; }
set { base.Width = value; }
}
[XmlAttributeAttribute()][DefaultValue(-1)]
public override int Height {
get { return base.Height; }
set { base.Height = value; }
}
[XmlIgnore]public override bool LayoutIsValid {
get { return childrenArePositionned && base.LayoutIsValid; }
set { base.LayoutIsValid = value; }
}
public override void InvalidateLayout ()
{
childrenArePositionned = false;
base.InvalidateLayout ();
}
protected override Size measureRawSize ()
{
Size raw = Bounds.Size;
Size tmp = new Size ();
if (raw.Width >= 0 && raw.Height >= 0)
return raw;
foreach (GraphicObject c in Children) {
if (raw.Width < 0) {
if (c.WIsValid) {
if (Orientation == Orientation.Horizontal && c.Bounds.Width != 0)
tmp.Width += c.Slot.Width + Spacing;
else
tmp.Width = Math.Max (tmp.Width, c.Slot.Right);
}else
return raw;
}
if (raw.Height < 0) {
if (c.HIsValid) {
if (Orientation == Orientation.Vertical && c.Bounds.Height != 0)
tmp.Height += c.Slot.Height + Spacing;
else
tmp.Height = Math.Max (tmp.Height, c.Slot.Bottom);
}else
return raw;
}
}
if (raw.Width < 0)
tmp.Width += 2*Margin;
if (raw.Height < 0)
tmp.Height += 2*Margin;
return tmp;
}
public virtual void ComputeChildrenPositions()
{
int d = 0;
if (Orientation == Orientation.Horizontal) {
foreach (GraphicObject c in Children) {
if (c.Bounds.Width == 0)
continue;
c.Slot.X = d;
c.XIsValid = true;
d += c.Slot.Width + Spacing;
}
} else {
foreach (GraphicObject c in Children) {
if (c.Bounds.Height == 0)
continue;
c.Slot.Y = d;
c.YIsValid = true;
d += c.Slot.Height + Spacing;
}
}
childrenArePositionned = true;
}
public override void UpdateLayout()
{
base.UpdateLayout();
ComputeChildrenPositions ();
if (LayoutIsValid)
registerForRedraw();
}
#endregion
//
// bool enoughtSpaceForWidget(GraphicObject w)
// {
// if (!SizeToContent)
// {
// int nextXForWidget = 0;
// int nextYForWidget = 0;
//
// if (Orientation == Orientation.Horizontal)
// nextXForWidget = currentXForWidget + w.Slot.Width;
// else
// nextYForWidget = nextYForWidget + w.Slot.Height;
//
//
// if (nextXForWidget > ClientRectangle.Right )
// return false;
// if (currentYForWidget > ClientRectangle.Bottom )
// return false;
// }
// return true;
// }
// void advance(GraphicObject w)
// {
// if (Orientation == Orientation.Horizontal)
// currentXForWidget = currentXForWidget + WidgetSpacing + w.Slot.Width;
// else
// currentYForWidget = currentYForWidget + WidgetSpacing + w.Slot.Height;
//
// }
}
}
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