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git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@1281 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
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Greenshot/Forms/ToolStripMenuSelectList.cs
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/*
* Greenshot - a free and open source screenshot tool
* Copyright (C) 2007-2010 Thomas Braun, Jens Klingen, Robin Krom
*
* For more information see: http://getgreenshot.org/
* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 1 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
using System;
using System.Collections;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
namespace Greenshot.Forms
{
/// <summary>
/// Description of ToolStripMenuSelectList.
/// </summary>
public class ToolStripMenuSelectList : ToolStripMenuItem
{
private bool multiCheckAllowed = false;
private bool updateInProgress = false;
/// <summary>
/// Occurs when one of the list's child element's Checked state changes.
/// </summary>
public new event EventHandler CheckedChanged;
public Object Identifier;
public ToolStripMenuSelectList(Object identifier, bool allowMultiCheck)
{
Identifier = identifier;
CheckOnClick = false;
multiCheckAllowed = allowMultiCheck;
}
public ToolStripMenuSelectList() : this(null,false) {}
public ToolStripMenuSelectList(Object identifier) : this(identifier,false) {}
/// <summary>
/// gets or sets the currently checked item
/// </summary>
public Object CheckedItem {
get {
IEnumerator items = DropDownItems.GetEnumerator();
while(items.MoveNext()) {
ToolStripMenuItem tsmi = (ToolStripMenuItem)items.Current;
if(tsmi.Checked) return tsmi;
}
return null;
}
set {
IEnumerator items = DropDownItems.GetEnumerator();
while(items.MoveNext()) {
ToolStripMenuItem tsmi = (ToolStripMenuItem)items.Current;
if(!multiCheckAllowed && !tsmi.Equals(value)) tsmi.Checked = false;
else if (tsmi.Equals(value)) tsmi.Checked = true;
}
}
}
/// <summary>
/// gets or sets the currently checked items
/// </summary>
public ToolStripMenuSelectListItem[] CheckedItems {
get {
List<ToolStripMenuSelectListItem> sel = new List<ToolStripMenuSelectListItem>();
IEnumerator items = DropDownItems.GetEnumerator();
while(items.MoveNext()) {
ToolStripMenuSelectListItem tsmi = (ToolStripMenuSelectListItem)items.Current;
if(tsmi.Checked) sel.Add(tsmi);
}
return sel.ToArray();
}
set {
if(!multiCheckAllowed) throw new ArgumentException("Writing to checkedItems is only allowed in multi-check mode. Either set allowMultiCheck to true or use set SelectedItem instead of SelectedItems.");
IEnumerator items = DropDownItems.GetEnumerator();
IEnumerator sel = value.GetEnumerator();
while(items.MoveNext()) {
ToolStripMenuItem tsmi = (ToolStripMenuItem)items.Current;
while (sel.MoveNext()) {
if(tsmi.Equals(sel.Current)) tsmi.Checked = true;
else tsmi.Checked = false;
if(!multiCheckAllowed && !tsmi.Equals(sel.Current)) tsmi.Checked = false;
else if (tsmi.Equals(value)) tsmi.Checked = true;
}
}
}
}
private void ItemCheckStateChanged(object sender, System.EventArgs e) {
if(updateInProgress) return;
ToolStripMenuSelectListItem tsmi = (ToolStripMenuSelectListItem)sender;
updateInProgress = true;
if(tsmi.Checked && !multiCheckAllowed) {
UncheckAll();
tsmi.Checked = true;
}
updateInProgress = false;
if(CheckedChanged != null) CheckedChanged(this, new ItemCheckedChangedEventArgs(tsmi));
}
/// <summary>
/// adds an item to the select list
/// </summary>
/// <param name="label">the label to be displayed</param>
/// <param name="image">the icon to be displayed</param>
/// <param name="data">the data to be returned when an item is queried</param>
/// <param name="isChecked">whether the item is initially checked</param>
public void AddItem(string label, Image image, Object data, bool isChecked) {
ToolStripMenuSelectListItem newItem = new ToolStripMenuSelectListItem();
newItem.Text = label;
newItem.Image = image;
newItem.CheckOnClick = true;
newItem.CheckStateChanged += new System.EventHandler(this.ItemCheckStateChanged);
newItem.Data = data;
if(isChecked) {
if(!multiCheckAllowed) {
updateInProgress = true;
UncheckAll();
updateInProgress = false;
}
newItem.Checked = isChecked;
}
this.DropDownItems.Add(newItem);
}
/// <summary>
/// adds an item to the select list
/// </summary>
/// <param name="label">the label to be displayed</param>
/// <param name="image">the icon to be displayed</param>
public void AddItem(string label, Image image) {
AddItem(label, image, null, false);
}
/// <summary>
/// adds an item to the select list
/// </summary>
/// <param name="label">the label to be displayed</param>
/// <param name="data">the data to be returned when an item is queried</param>
public void AddItem(string label, Object data) {
AddItem(label, null, data, false);
}
/// <summary>
/// adds an item to the select list
/// </summary>
/// <param name="label">the label to be displayed</param>
public void AddItem(string label) {
AddItem(label, null, null, false);
}
// <summary>
/// adds an item to the select list
/// </summary>
/// <param name="label">the label to be displayed</param>
/// <param name="image">the icon to be displayed</param>
/// <param name="selected">whether the item is initially selected</param>
/// <param name="isChecked">whether the item is initially checked</param>
public void AddItem(string label, Image image, bool isChecked) {
AddItem(label, image, null, isChecked);
}
/// <summary>
/// adds an item to the select list
/// </summary>
/// <param name="label">the label to be displayed</param>
/// <param name="data">the data to be returned when an item is queried</param>
/// <param name="isChecked">whether the item is initially checked</param>
public void AddItem(string label, Object data, bool isChecked) {
AddItem(label, null, data, isChecked);
}
/// <summary>
/// adds an item to the select list
/// </summary>
/// <param name="label">the label to be displayed</param>
/// <param name="isChecked">whether the item is initially checked</param>
public void AddItem(string label, bool isChecked) {
AddItem(label, null, null, isChecked);
}
/// <summary>
/// unchecks all items of the list
/// </summary>
public void UncheckAll() {
IEnumerator items = DropDownItems.GetEnumerator();
while(items.MoveNext()) ((ToolStripMenuItem)items.Current).Checked = false;
}
}
public class ItemCheckedChangedEventArgs : System.EventArgs {
public ToolStripMenuSelectListItem Item;
public ItemCheckedChangedEventArgs(ToolStripMenuSelectListItem item) {
Item = item;
}
}
public class ToolStripMenuSelectListItem : ToolStripMenuItem {
public Object Data;
}
}