UltimateZoneBuilder/Source/Core/Map/SelectableElement.cs

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#region ================== Copyright (c) 2007 Pascal vd Heiden
/*
* Copyright (c) 2007 Pascal vd Heiden, www.codeimp.com
* This program is released under GNU General Public License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#endregion
#region ================== Namespaces
#endregion
namespace CodeImp.DoomBuilder.Map
{
public abstract class SelectableElement : MapElement
{
#region ================== Constants
#endregion
#region ================== Variables
// Selected or not?
private bool selected;
// Group bitmask
private int groups;
#endregion
#region ================== Properties
public bool Selected { get { return selected; } set { if(value && !selected) DoSelect(); else if(!value && selected) DoUnselect(); } }
#endregion
#region ================== Constructor / Disposer
// Constructor
internal SelectableElement()
{
}
// Disposer
public override void Dispose()
{
// Remove from selection
if(selected) Selected = false;
// Done
base.Dispose();
}
#endregion
#region ================== Methods
// This makes the selection
protected virtual void DoSelect()
{
selected = true;
}
// This removes the selection
protected virtual void DoUnselect()
{
selected = false;
}
// This copies properties to any other element
public void CopyPropertiesTo(SelectableElement element)
{
element.groups = this.groups;
element.Selected = this.selected;
base.CopyPropertiesTo(element);
}
// This adds the element to one or more groups
public void AddToGroup(int groupsmask)
{
groups |= groupsmask;
}
// This removes the elements from one or more groups
public void RemoveFromGroup(int groupsmask)
{
groups &= ~groupsmask;
}
// This selects by group
public void SelectByGroup(int groupsmask)
{
this.Selected = ((groups & groupsmask) != 0);
}
#endregion
}
}