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Ignore:
Timestamp:
05/03/10 17:38:05 (15 years ago)
Author:
gkronber
Message:

Changed CheckedItemCollectionView and CheckedItemListView to extend from ItemCollectionView and ItemListView. #992 (CheckedItemList and CheckedItemCollection is necessary)

File:
1 edited

Legend:

Unmodified
Added
Removed

  • trunk/sources/HeuristicLab.Core.Views/3.3/CheckedItemCollectionView.cs

    r3588 r3595  
    1 #region License Information
     1#region License Information
    22/* HeuristicLab
    33 * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
    … …  
    2222using System;
    2323using System.Collections.Generic;
     24using System.ComponentModel;
     25using System.Drawing;
     26using System.Data;
    2427using System.Linq;
     28using System.Text;
    2529using System.Windows.Forms;
    2630using HeuristicLab.Collections;
    2731using HeuristicLab.MainForm;
    28 using HeuristicLab.MainForm.WindowsForms;
    2932
    3033namespace HeuristicLab.Core.Views {
    … …  
    3235  [Content(typeof(ICheckedItemCollection<>), false)]
    3336  [Content(typeof(CheckedItemCollection<>), true)]
    34   public partial class CheckedItemCollectionView<T> : ItemView where T : class, IItem {
    35     protected TypeSelectorDialog typeSelectorDialog;
    36 
     37  public partial class CheckedItemCollectionView<T> : ItemCollectionView<T> where T : class, IItem {
    3738    public new ICheckedItemCollection<T> Content {
    3839      get { return (ICheckedItemCollection<T>)base.Content; }
    3940      set { base.Content = value; }
    4041    }
    41 
    42     public ListView ItemsListView {
    43       get { return itemsListView; }
     42   
     43    public CheckedItemCollectionView()
     44      : base() {
     45      InitializeComponent();
    4446    }
    4547
    46     public CheckedItemCollectionView() {
    47       InitializeComponent();
    48       Caption = "Checked Item Collection";
     48    protected override void RegisterContentEvents() {
     49      Content.CheckedItemsChanged += new HeuristicLab.Collections.CollectionItemsChangedEventHandler<T>(Content_CheckedItemsChanged);
     50      base.RegisterContentEvents();
    4951    }
    5052
    5153    protected override void DeregisterContentEvents() {
    52       Content.ItemsAdded -= new CollectionItemsChangedEventHandler<T>(Content_ItemsAdded);
    53       Content.ItemsRemoved -= new CollectionItemsChangedEventHandler<T>(Content_ItemsRemoved);
    54       Content.CollectionReset -= new CollectionItemsChangedEventHandler<T>(Content_CollectionReset);
    55       Content.CheckedItemsChanged -= new CollectionItemsChangedEventHandler<T>(Content_ItemsChecked);
     54      Content.CheckedItemsChanged -= new HeuristicLab.Collections.CollectionItemsChangedEventHandler<T>(Content_CheckedItemsChanged);
    5655      base.DeregisterContentEvents();
    57     }
    58     protected override void RegisterContentEvents() {
    59       base.RegisterContentEvents();
    60       Content.ItemsAdded += new CollectionItemsChangedEventHandler<T>(Content_ItemsAdded);
    61       Content.ItemsRemoved += new CollectionItemsChangedEventHandler<T>(Content_ItemsRemoved);
    62       Content.CollectionReset += new CollectionItemsChangedEventHandler<T>(Content_CollectionReset);
    63       Content.CheckedItemsChanged += new CollectionItemsChangedEventHandler<T>(Content_ItemsChecked);
    6456    }
    6557
    6658    protected override void OnContentChanged() {
     59      Caption = "Checked Item Collection";
    6760      base.OnContentChanged();
    68       Caption = "Checked Item Collection";
    69       while (itemsListView.Items.Count > 0) RemoveListViewItem(itemsListView.Items[0]);
    70       viewHost.Content = null;
    71       if (Content != null) {
    72         Caption += " (" + Content.GetType().Name + ")";
    73         foreach (T item in Content)
    74           AddListViewItem(CreateListViewItem(item));
    75         SortItemsListView(SortOrder.Ascending);
    76       }
    77       SetEnabledStateOfControls();
    7861    }
    7962
    80     protected override void OnReadOnlyChanged() {
    81       base.OnReadOnlyChanged();
    82       SetEnabledStateOfControls();
    83     }
    84 
    85     private void SetEnabledStateOfControls() {
    86       if (Content == null) {
    87         addButton.Enabled = false;
    88         sortAscendingButton.Enabled = false;
    89         sortDescendingButton.Enabled = false;
    90         removeButton.Enabled = false;
    91         itemsListView.Enabled = false;
    92         detailsGroupBox.Enabled = false;
    93       } else {
    94         addButton.Enabled = !Content.IsReadOnly && !ReadOnly;
    95         sortAscendingButton.Enabled = itemsListView.Items.Count > 1;
    96         sortDescendingButton.Enabled = itemsListView.Items.Count > 1;
    97         removeButton.Enabled = !Content.IsReadOnly && !ReadOnly && itemsListView.SelectedItems.Count > 0;
    98         itemsListView.Enabled = true;
    99         detailsGroupBox.Enabled = true;
    100       }
    101     }
    102 
    103     protected virtual T CreateItem() {
    104       if (typeSelectorDialog == null) {
    105         typeSelectorDialog = new TypeSelectorDialog();
    106         typeSelectorDialog.Caption = "Select Item";
    107         typeSelectorDialog.TypeSelector.Caption = "Available Items";
    108         typeSelectorDialog.TypeSelector.Configure(typeof(T), false, true);
    109       }
    110 
    111       if (typeSelectorDialog.ShowDialog(this) == DialogResult.OK) {
    112         try {
    113           return (T)typeSelectorDialog.TypeSelector.CreateInstanceOfSelectedType();
    114         }
    115         catch (Exception ex) {
    116           Auxiliary.ShowErrorMessageBox(ex);
    117         }
    118       }
    119       return null;
    120     }
    121     protected virtual ListViewItem CreateListViewItem(T item) {
    122       ListViewItem listViewItem = new ListViewItem();
    123       listViewItem.Text = item.ToString();
    124       listViewItem.ToolTipText = item.ItemName + ": " + item.ItemDescription;
    125       listViewItem.Tag = item;
     63    protected override ListViewItem CreateListViewItem(T item) {
     64      ListViewItem listViewItem = base.CreateListViewItem(item);
    12665      listViewItem.Checked = Content.ItemChecked(item);
    127       itemsListView.SmallImageList.Images.Add(item.ItemImage);
    128       listViewItem.ImageIndex = itemsListView.SmallImageList.Images.Count - 1;
    12966      return listViewItem;
    130     }
    131     protected virtual void AddListViewItem(ListViewItem listViewItem) {
    132       itemsListView.Items.Add(listViewItem);
    133       ((T)listViewItem.Tag).ItemImageChanged += new EventHandler(Item_ItemImageChanged);
    134       ((T)listViewItem.Tag).ToStringChanged += new EventHandler(Item_ToStringChanged);
    135       AdjustListViewColumnSizes();
    136       sortAscendingButton.Enabled = itemsListView.Items.Count > 1;
    137       sortDescendingButton.Enabled = itemsListView.Items.Count > 1;
    138     }
    139     protected virtual void RemoveListViewItem(ListViewItem listViewItem) {
    140       ((T)listViewItem.Tag).ItemImageChanged -= new EventHandler(Item_ItemImageChanged);
    141       ((T)listViewItem.Tag).ToStringChanged -= new EventHandler(Item_ToStringChanged);
    142       listViewItem.Remove();
    143       foreach (ListViewItem other in itemsListView.Items)
    144         if (other.ImageIndex > listViewItem.ImageIndex) other.ImageIndex--;
    145       itemsListView.SmallImageList.Images.RemoveAt(listViewItem.ImageIndex);
    146       sortAscendingButton.Enabled = itemsListView.Items.Count > 1;
    147       sortDescendingButton.Enabled = itemsListView.Items.Count > 1;
    148     }
    149     protected virtual void UpdateListViewItemImage(ListViewItem listViewItem) {
    150       int i = listViewItem.ImageIndex;
    151       listViewItem.ImageList.Images[i] = ((T)listViewItem.Tag).ItemImage;
    152       listViewItem.ImageIndex = -1;
    153       listViewItem.ImageIndex = i;
    154     }
    155     protected virtual void UpdateListViewItemText(ListViewItem listViewItem) {
    156       if (!listViewItem.Text.Equals(listViewItem.Tag.ToString()))
    157         listViewItem.Text = listViewItem.Tag.ToString();
    158     }
    159     protected virtual IEnumerable<ListViewItem> GetListViewItemsForItem(T item) {
    160       foreach (ListViewItem listViewItem in itemsListView.Items) {
    161         if (((T)listViewItem.Tag) == item)
    162           yield return listViewItem;
    163       }
    16467    }
    16568
    16669    #region ListView Events
    167     private void itemsListView_ItemChecked(object sender, ItemCheckedEventArgs e) {
     70    protected virtual void itemsListView_ItemChecked(object sender, ItemCheckedEventArgs e) {
    16871      var checkedItem = (T)e.Item.Tag;
    16972      if (Content.ItemChecked(checkedItem) != e.Item.Checked) {
    … …  
    17174      }
    17275    }
    173 
    174     protected virtual void itemsListView_SelectedIndexChanged(object sender, EventArgs e) {
    175       removeButton.Enabled = (Content != null) && !Content.IsReadOnly && !ReadOnly && itemsListView.SelectedItems.Count > 0;
    176       if (itemsListView.SelectedItems.Count == 1) {
    177         T item = (T)itemsListView.SelectedItems[0].Tag;
    178         detailsGroupBox.Enabled = true;
    179         viewHost.ViewType = null;
    180         viewHost.Content = item;
    181       } else {
    182         viewHost.Content = null;
    183         detailsGroupBox.Enabled = false;
    184       }
    185     }
    186     protected virtual void itemsListView_KeyDown(object sender, KeyEventArgs e) {
    187       if (e.KeyCode == Keys.Delete) {
    188         if ((itemsListView.SelectedItems.Count > 0) && !Content.IsReadOnly && !ReadOnly) {
    189           foreach (ListViewItem item in itemsListView.SelectedItems)
    190             Content.Remove((T)item.Tag);
    191         }
    192       }
    193     }
    194     protected virtual void itemsListView_DoubleClick(object sender, EventArgs e) {
    195       if (itemsListView.SelectedItems.Count == 1) {
    196         T item = (T)itemsListView.SelectedItems[0].Tag;
    197         IContentView view = MainFormManager.MainForm.ShowContent(item);
    198         if (view != null) {
    199           view.ReadOnly = ReadOnly;
    200           view.Locked = Locked;
    201         }
    202       }
    203     }
    204     protected virtual void itemsListView_ItemDrag(object sender, ItemDragEventArgs e) {
    205       if (!Locked) {
    206         ListViewItem listViewItem = (ListViewItem)e.Item;
    207         T item = (T)listViewItem.Tag;
    208         DataObject data = new DataObject();
    209         data.SetData("Type", item.GetType());
    210         data.SetData("Value", item);
    211         if (Content.IsReadOnly || ReadOnly) {
    212           DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Link);
    213         } else {
    214           DragDropEffects result = DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Link | DragDropEffects.Move);
    215           if ((result & DragDropEffects.Move) == DragDropEffects.Move)
    216             Content.Remove(item);
    217         }
    218       }
    219     }
    220     protected virtual void itemsListView_DragEnterOver(object sender, DragEventArgs e) {
    221       e.Effect = DragDropEffects.None;
    222       Type type = e.Data.GetData("Type") as Type;
    223       if (!Content.IsReadOnly && !ReadOnly && (type != null) && (typeof(T).IsAssignableFrom(type))) {
    224         if ((e.KeyState & 8) == 8) e.Effect = DragDropEffects.Link;  // CTRL key
    225         else if ((e.KeyState & 4) == 4) e.Effect = DragDropEffects.Move;  // SHIFT key
    226         else if ((e.AllowedEffect & DragDropEffects.Copy) == DragDropEffects.Copy) e.Effect = DragDropEffects.Copy;
    227         else if ((e.AllowedEffect & DragDropEffects.Move) == DragDropEffects.Move) e.Effect = DragDropEffects.Move;
    228         else if ((e.AllowedEffect & DragDropEffects.Link) == DragDropEffects.Link) e.Effect = DragDropEffects.Link;
    229       }
    230     }
    231     protected virtual void itemsListView_DragDrop(object sender, DragEventArgs e) {
    232       if (e.Effect != DragDropEffects.None) {
    233         T item = e.Data.GetData("Value") as T;
    234         if ((e.Effect & DragDropEffects.Copy) == DragDropEffects.Copy) item = (T)item.Clone();
    235         Content.Add(item);
    236       }
    237     }
    238     #endregion
    239 
    240     #region Button Events
    241     protected virtual void addButton_Click(object sender, EventArgs e) {
    242       T item = CreateItem();
    243       if (item != null)
    244         Content.Add(item);
    245     }
    246     protected virtual void sortAscendingButton_Click(object sender, EventArgs e) {
    247       SortItemsListView(SortOrder.Ascending);
    248     }
    249     protected virtual void sortDescendingButton_Click(object sender, EventArgs e) {
    250       SortItemsListView(SortOrder.Descending);
    251     }
    252     protected virtual void removeButton_Click(object sender, EventArgs e) {
    253       if (itemsListView.SelectedItems.Count > 0) {
    254         foreach (ListViewItem item in itemsListView.SelectedItems)
    255           Content.Remove((T)item.Tag);
    256         itemsListView.SelectedItems.Clear();
    257       }
    258     }
    25976    #endregion
    26077
    26178    #region Content Events
    262     protected virtual void Content_ItemsAdded(object sender, CollectionItemsChangedEventArgs<T> e) {
     79    protected virtual void Content_CheckedItemsChanged(object sender, HeuristicLab.Collections.CollectionItemsChangedEventArgs<T> e) {
    26380      if (InvokeRequired)
    264         Invoke(new CollectionItemsChangedEventHandler<T>(Content_ItemsAdded), sender, e);
    265       else
    266         foreach (T item in e.Items)
    267           AddListViewItem(CreateListViewItem(item));
    268     }
    269     protected virtual void Content_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<T> e) {
    270       if (InvokeRequired)
    271         Invoke(new CollectionItemsChangedEventHandler<T>(Content_ItemsRemoved), sender, e);
    272       else {
    273         foreach (T item in e.Items) {
    274           foreach (ListViewItem listViewItem in GetListViewItemsForItem(item)) {
    275             RemoveListViewItem(listViewItem);
    276             break;
    277           }
    278         }
    279       }
    280     }
    281     protected virtual void Content_CollectionReset(object sender, CollectionItemsChangedEventArgs<T> e) {
    282       if (InvokeRequired)
    283         Invoke(new CollectionItemsChangedEventHandler<T>(Content_CollectionReset), sender, e);
    284       else {
    285         foreach (T item in e.OldItems) {
    286           foreach (ListViewItem listViewItem in GetListViewItemsForItem(item)) {
    287             RemoveListViewItem(listViewItem);
    288             break;
    289           }
    290         }
    291         foreach (T item in e.Items)
    292           AddListViewItem(CreateListViewItem(item));
    293       }
    294     }
    295     protected virtual void Content_ItemsChecked(object sender, CollectionItemsChangedEventArgs<T> e) {
    296       if (InvokeRequired)
    297         Invoke(new CollectionItemsChangedEventHandler<T>(Content_ItemsChecked), sender, e);
     81        Invoke(new CollectionItemsChangedEventHandler<T>(Content_CheckedItemsChanged), sender, e);
    29882      else {
    29983        foreach (T item in e.Items) {
    … …  
    30488        }
    30589      }
    306     }
    307     #endregion
    308 
    309     #region Item Events
    310     protected virtual void Item_ItemImageChanged(object sender, EventArgs e) {
    311       if (InvokeRequired)
    312         Invoke(new EventHandler(Item_ItemImageChanged), sender, e);
    313       else {
    314         T item = (T)sender;
    315         foreach (ListViewItem listViewItem in GetListViewItemsForItem(item))
    316           UpdateListViewItemImage(listViewItem);
    317       }
    318     }
    319     protected virtual void Item_ToStringChanged(object sender, EventArgs e) {
    320       if (InvokeRequired)
    321         Invoke(new EventHandler(Item_ToStringChanged), sender, e);
    322       else {
    323         T item = (T)sender;
    324         foreach (ListViewItem listViewItem in GetListViewItemsForItem(item))
    325           UpdateListViewItemText(listViewItem);
    326         AdjustListViewColumnSizes();
    327       }
    328     }
    329     #endregion
    330 
    331     #region Helpers
    332     protected virtual void SortItemsListView(SortOrder sortOrder) {
    333       itemsListView.Sorting = SortOrder.None;
    334       itemsListView.Sorting = sortOrder;
    335       itemsListView.Sorting = SortOrder.None;
    336     }
    337     protected virtual void AdjustListViewColumnSizes() {
    338       if (itemsListView.Items.Count > 0) {
    339         for (int i = 0; i < itemsListView.Columns.Count; i++)
    340           itemsListView.Columns[i].AutoResize(ColumnHeaderAutoResizeStyle.ColumnContent);
    341       }
    342     }
     90    }     
    34391    #endregion
    34492  }
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