#region License Information /* HeuristicLab * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab 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 3 of the License, or * (at your option) any later version. * * HeuristicLab 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 HeuristicLab. If not, see . */ #endregion using System; using System.Collections.Generic; using System.Drawing; using System.Linq; using System.Windows.Forms; using HeuristicLab.Collections; using HeuristicLab.MainForm; namespace HeuristicLab.Core.Views { [View("CheckedItemCollection View")] [Content(typeof(ICheckedItemCollection<>), true)] [Content(typeof(CheckedItemCollection<>), true)] [Content(typeof(ReadOnlyCheckedItemCollection<>), true)] public partial class CheckedItemCollectionView : ItemCollectionView where T : class, IItem { public new ICheckedItemCollection Content { get { return (ICheckedItemCollection)base.Content; } set { base.Content = value; } } public CheckedItemCollectionView() : base() { InitializeComponent(); } protected override void OnContentChanged() { base.OnContentChanged(); if (Content != null) { SetNumberOfCheckItems(); } } protected override void RegisterContentEvents() { Content.CheckedItemsChanged += new HeuristicLab.Collections.CollectionItemsChangedEventHandler(Content_CheckedItemsChanged); base.RegisterContentEvents(); } protected override void DeregisterContentEvents() { Content.CheckedItemsChanged -= new HeuristicLab.Collections.CollectionItemsChangedEventHandler(Content_CheckedItemsChanged); base.DeregisterContentEvents(); } private Color backupColor = Color.Empty; protected override void SetEnabledStateOfControls() { if (backupColor == Color.Empty) backupColor = base.itemsListView.BackColor; base.SetEnabledStateOfControls(); if (ReadOnly || Locked) base.itemsListView.BackColor = ListView.DefaultBackColor; else base.itemsListView.BackColor = backupColor; } protected override ListViewItem CreateListViewItem(T item) { ListViewItem listViewItem = base.CreateListViewItem(item); listViewItem.Checked = Content.ItemChecked(item); return listViewItem; } #region ListView Events private bool doubleClick; protected virtual void itemsListView_ItemCheck(object sender, ItemCheckEventArgs e) { if (doubleClick) { e.NewValue = e.CurrentValue; doubleClick = false; } else { var checkedItem = (T)itemsListView.Items[e.Index].Tag; bool check = e.NewValue == CheckState.Checked; if (Content.ItemChecked(checkedItem) != check) { if (!ReadOnly && !Locked) Content.SetItemCheckedState(checkedItem, check); else e.NewValue = e.CurrentValue; } } } protected void itemsListView_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e) { if (e.Clicks > 1) doubleClick = true; } #endregion #region Content Events protected virtual void Content_CheckedItemsChanged(object sender, CollectionItemsChangedEventArgs e) { if (InvokeRequired) Invoke(new CollectionItemsChangedEventHandler(Content_CheckedItemsChanged), sender, e); else { UpdateCheckedItemState(e.Items); SetNumberOfCheckItems(); } } protected override void Content_CollectionReset(object sender, CollectionItemsChangedEventArgs e) { base.Content_CollectionReset(sender, e); SetNumberOfCheckItems(); } protected override void Content_ItemsAdded(object sender, CollectionItemsChangedEventArgs e) { base.Content_ItemsAdded(sender, e); SetNumberOfCheckItems(); } protected override void Content_ItemsRemoved(object sender, CollectionItemsChangedEventArgs e) { base.Content_ItemsRemoved(sender, e); SetNumberOfCheckItems(); } #endregion private void SetNumberOfCheckItems() { if (InvokeRequired) { Invoke((Action)SetNumberOfCheckItems); } else { this.itemsGroupBox.Text = String.Format("Items (Checked: {0}/{1})", Content.CheckedItems.Count(), Content.Count); } } private void UpdateCheckedItemState(IEnumerable items) { foreach (T item in items) { foreach (ListViewItem listViewItem in GetListViewItemsForItem(item)) { var isChecked = Content.ItemChecked(item); if (listViewItem.Checked != isChecked) listViewItem.Checked = isChecked; } } } } }