//
// ListViewGroup.cs
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (c) 2006 Daniel Nauck
//
// Author:
// Daniel Nauck (dna(at)mono-project(dot)de)
#if NET_2_0
using System;
using System.Text;
using System.Runtime.Serialization;
using System.ComponentModel;
using System.Drawing;
namespace System.Windows.Forms{
[SerializableAttribute]
[ToolboxItem(false)]
[DesignTimeVisible(false)]
[DefaultProperty("Header")]
[TypeConverter (typeof (ListViewGroupConverter))]
public sealed class ListViewGroup : ISerializable
{
internal string header = string.Empty;
private string name = null;
private HorizontalAlignment header_alignment = HorizontalAlignment.Left;
private ListView list_view_owner = null;
private ListView.ListViewItemCollection items = null;
private object tag = null;
private Rectangle header_bounds = Rectangle.Empty;
internal int starting_row; // At which row the group starts
internal int starting_item; // The first display item in group
internal int rows;
internal int current_item; // Current item when doing layout
internal Point items_area_location;
bool is_default_group;
int item_count; // Used by default group to store item count
#region ListViewGroup constructors
public ListViewGroup () : this ("ListViewGroup", HorizontalAlignment.Left)
{
}
public ListViewGroup (string header) : this (header, HorizontalAlignment.Left)
{
}
public ListViewGroup (string key, string headerText) : this (headerText, HorizontalAlignment.Left)
{
name = key;
}
public ListViewGroup (string header, HorizontalAlignment headerAlignment)
{
this.header = header;
header_alignment = headerAlignment;
items = new ListView.ListViewItemCollection (list_view_owner, this);
}
private ListViewGroup(SerializationInfo info, StreamingContext context)
{
header = info.GetString("Header");
name = info.GetString("Name");
header_alignment = (HorizontalAlignment)info.GetInt32("HeaderAlignment");
tag = info.GetValue("Tag", typeof(object));
int count = info.GetInt32("ListViewItemCount");
if (count > 0) {
if(items == null)
items = new ListView.ListViewItemCollection(list_view_owner);
for (int i = 0; i < count; i++)
{
items.Add((ListViewItem)info.GetValue(string.Format("ListViewItem_{0}", i), typeof(ListViewItem)));
}
}
}
#endregion
#region ListViewGroup properties
public string Header {
get { return header; }
set {
if (!header.Equals(value)) {
header = value;
if (list_view_owner != null)
list_view_owner.Redraw(true);
}
}
}
[DefaultValue (HorizontalAlignment.Left)]
public HorizontalAlignment HeaderAlignment {
get { return header_alignment; }
set {
if (!header_alignment.Equals(value)) {
if (value != HorizontalAlignment.Left && value != HorizontalAlignment.Right &&
value != HorizontalAlignment.Center)
throw new InvalidEnumArgumentException("HeaderAlignment", (int)value, typeof(HorizontalAlignment));
header_alignment = value;
if (list_view_owner != null)
list_view_owner.Redraw(true);
}
}
}
[Browsable(false)]
public ListView.ListViewItemCollection Items {
get {
return items;
}
}
[DesignerSerializationVisibility(0)]
[Browsable(false)]
public ListView ListView {
get { return list_view_owner; }
}
internal ListView ListViewOwner {
get { return list_view_owner; }
set {
list_view_owner = value;
if (!is_default_group)
items.Owner = value;
}
}
internal Rectangle HeaderBounds {
get {
Rectangle retval = header_bounds;
retval.X -= list_view_owner.h_marker;
retval.Y -= list_view_owner.v_marker;
return retval;
}
set {
if (list_view_owner != null)
list_view_owner.item_control.Invalidate (HeaderBounds);
header_bounds = value;
if (list_view_owner != null)
list_view_owner.item_control.Invalidate (HeaderBounds);
}
}
internal bool IsDefault {
get {
return is_default_group;
}
set {
is_default_group = value;
}
}
internal int ItemCount {
get {
return is_default_group ? item_count : items.Count;
}
set {
if (!is_default_group)
throw new InvalidOperationException ("ItemCount cannot be set for non-default groups.");
item_count = value;
}
}
internal int GetActualItemCount ()
{
if (is_default_group)
return item_count;
int count = 0;
for (int i = 0; i < items.Count; i++)
if (items [i].ListView != null) // Ignore.
count++;
return count;
}
[Browsable(true)]
[DefaultValue("")]
public string Name {
get { return name; }
set { name = value; }
}
[TypeConverter(typeof(StringConverter))]
[DefaultValue(null)]
[Localizable(false)]
[Bindable(true)]
public Object Tag {
get { return tag; }
set { tag = value; }
}
#endregion
public override string ToString()
{
return header;
}
#region ISerializable Members
void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context)
{
info.AddValue("Header", header);
info.AddValue("Name", name);
info.AddValue("HeaderAlignment", header_alignment);
info.AddValue("Tag", tag);
info.AddValue("ListViewItemCount", items.Count);
int i = 0;
foreach (ListViewItem item in items)
{
info.AddValue(string.Format("ListViewItem_{0}", i), item);
i++;
}
}
#endregion
}
internal class ListViewGroupConverter : TypeConverter
{
public override bool GetStandardValuesSupported (ITypeDescriptorContext context)
{
return true;
}
// Weird
public override StandardValuesCollection GetStandardValues (ITypeDescriptorContext context)
{
return new StandardValuesCollection (new object [] {});
}
}
}
#endif
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