class/Gtk.TeamFoundation/SortableColumns.cs

   1 //
   2 // SortableColumns.cs
   3 //
   4 // Authors:
   5 //      Joel Reed (joelwreed@gmail.com)
   6 //
   7
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System;
  30 using Gtk;
  31
  32 namespace Gtk.TeamFoundation
  33 {
  34         class SortableColumns
  35         {
  36                 private Gtk.TreeView view;
  37                 private Gtk.ListStore store;
  38                 private SortType currentSortType = SortType.Descending;
  39                 private int currentSortColumnId = 0;
  40
  41                 public SortableColumns(Gtk.TreeView view, Gtk.ListStore store)
  42                 {
  43                         this.view = view;
  44                         this.store = store;
  45                 }
  46
  47                 public void OnColumnClick (object sender, EventArgs args)
  48                 {
  49                         TreeViewColumn column = sender as TreeViewColumn;
  50                         foreach (TreeViewColumn c in view.Columns)
  51                                 {
  52                                         if (c.SortColumnId != column.SortColumnId) c.SortIndicator = false;
  53                                 }
  54
  55                         if (currentSortColumnId == column.SortColumnId)
  56                                 {
  57                                         if (currentSortType == SortType.Ascending) currentSortType = SortType.Descending;
  58                                         else currentSortType = SortType.Ascending;
  59                                 }
  60                         else
  61                                 {
  62                                         currentSortColumnId = column.SortColumnId;
  63                                         currentSortType = SortType.Ascending;
  64                                 }
  65
  66                         column.SortOrder = currentSortType;
  67                         column.SortIndicator = true;
  68                         store.SetSortColumnId (currentSortColumnId, currentSortType);
  69                 }
  70         }
  71 }