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using System;
using System.Windows.Forms.Design;
using System.ComponentModel.Design;
using System.Drawing;
using System.Collections;
using System.Windows.Forms;
using FarsiLibrary.Win;
namespace FarsiLibrary.Win.Design
{
public class FATabStripDesigner : ParentControlDesigner
{
#region Fields
IComponentChangeService changeService;
#endregion
#region Initialize & Dispose
public override void Initialize(System.ComponentModel.IComponent component)
{
base.Initialize(component);
//Design services
changeService = (IComponentChangeService)GetService(typeof(IComponentChangeService));
//Bind design events
changeService.ComponentRemoving += new ComponentEventHandler(OnRemoving);
Verbs.Add(new DesignerVerb("Add TabStrip", new EventHandler(OnAddTabStrip)));
Verbs.Add(new DesignerVerb("Remove TabStrip", new EventHandler(OnRemoveTabStrip)));
}
protected override void Dispose(bool disposing)
{
changeService.ComponentRemoving -= new ComponentEventHandler(OnRemoving);
base.Dispose(disposing);
}
#endregion
#region Private Methods
private void OnRemoving(object sender, ComponentEventArgs e)
{
IDesignerHost host = (IDesignerHost) GetService(typeof (IDesignerHost));
//Removing a button
if (e.Component is FATabStripItem)
{
FATabStripItem itm = e.Component as FATabStripItem;
if (Control.Items.Contains(itm))
{
changeService.OnComponentChanging(Control, null);
Control.RemoveTab(itm);
changeService.OnComponentChanged(Control, null, null, null);
return;
}
}
if (e.Component is FATabStrip)
{
for (int i = Control.Items.Count - 1; i >= 0; i--)
{
FATabStripItem itm = Control.Items[i];
changeService.OnComponentChanging(Control, null);
Control.RemoveTab(itm);
host.DestroyComponent(itm);
changeService.OnComponentChanged(Control, null, null, null);
}
}
}
private void OnAddTabStrip(object sender, EventArgs e)
{
IDesignerHost host = (IDesignerHost)GetService(typeof(IDesignerHost));
DesignerTransaction transaction = host.CreateTransaction("Add TabStrip");
FATabStripItem itm = (FATabStripItem)host.CreateComponent(typeof(FATabStripItem));
changeService.OnComponentChanging(Control, null);
Control.AddTab(itm);
int indx = Control.Items.IndexOf(itm) + 1;
itm.Title = "TabStrip Page " + indx.ToString();
Control.SelectItem(itm);
changeService.OnComponentChanged(Control, null, null, null);
transaction.Commit();
}
private void OnRemoveTabStrip(object sender, EventArgs e)
{
IDesignerHost host = (IDesignerHost)GetService(typeof(IDesignerHost));
DesignerTransaction transaction = host.CreateTransaction("Remove Button");
changeService.OnComponentChanging(Control, null);
FATabStripItem itm = Control.Items[Control.Items.Count - 1];
Control.UnSelectItem(itm);
Control.Items.Remove(itm);
changeService.OnComponentChanged(Control, null, null, null);
transaction.Commit();
}
#endregion
#region Overrides
/// <summary>
/// Check HitTest on <see cref="FATabStrip"/> control and
/// let the user click on close and menu buttons.
/// </summary>
/// <param name="point"></param>
/// <returns></returns>
protected override bool GetHitTest(Point point)
{
HitTestResult result = Control.HitTest(point);
if(result == HitTestResult.CloseButton || result == HitTestResult.MenuGlyph)
return true;
return false;
}
protected override void PreFilterProperties(IDictionary properties)
{
base.PreFilterProperties(properties);
properties.Remove("DockPadding");
properties.Remove("DrawGrid");
properties.Remove("Margin");
properties.Remove("Padding");
properties.Remove("BorderStyle");
properties.Remove("ForeColor");
properties.Remove("BackColor");
properties.Remove("BackgroundImage");
properties.Remove("BackgroundImageLayout");
properties.Remove("GridSize");
properties.Remove("ImeMode");
}
protected override void WndProc(ref Message msg)
{
if (msg.Msg == 0x201)
{
Point pt = Control.PointToClient(Cursor.Position);
FATabStripItem itm = Control.GetTabItemByPoint(pt);
if (itm != null)
{
Control.SelectedItem = itm;
ArrayList selection = new ArrayList();
selection.Add(itm);
ISelectionService selectionService = (ISelectionService)GetService(typeof(ISelectionService));
selectionService.SetSelectedComponents(selection);
}
}
base.WndProc(ref msg);
}
public override ICollection AssociatedComponents
{
get
{
return Control.Items;
}
}
public new virtual FATabStrip Control
{
get
{
return base.Control as FATabStrip;
}
}
#endregion
}
}
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