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annotate TreeUtils.cs @ 42:f04e973e5ea0 default tip

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* Drop back to old Tooltips to support GTK# before 2.12 * Make sure we're not 2.12 specific to allow building on the server (running 2.10)
author IBBoard <dev@ibboard.co.uk>
date Sun, 07 Oct 2012 19:58:40 +0100
parents f6126047dd8c
children
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14ce41d2f9bd * Add TreeUtils to simplify TreeView handling in GTK# (GTK# = thin wrapper around GTK = looks like C calls = looks ugly and out of place and has far too many steps in an OO lang)
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1 // This file (TreeUtils.cs) is a part of the IBBoard.GtkSharp project and is copyright 2009 IBBoard
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2 //
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3 // The file and the library/program it is in are licensed under the GNU LGPL license, either version 3 of the License or (at your option) any later version. Please see COPYING.LGPL for more information and the full license.
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4 //
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5
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6 using System;
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7 using Gtk;
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8
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9 namespace IBBoard.GtkSharp
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10 {
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11 /// <summary>
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12 /// Utility methods for working with GTK TreeViews and TreeModels
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13 /// </summary>
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14 public class TreeUtils
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15 {
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16 public static object GetItemAtPath(TreeView tree, TreePath path)
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17 {
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18 TreeModel model = tree.Model;
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19 TreeIter iter;
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20 model.GetIter(out iter, path);
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21 return model.GetValue(iter, 0);
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22 }
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23
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24 public static object GetSelectedItem(TreeView tree)
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25 {
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26 TreeSelection selection = tree.Selection;
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27 TreeModel model;
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28 TreeIter iter;
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29 object selected = null;
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30
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31 if (selection.CountSelectedRows() > 0)
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32 {
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33 selection.GetSelected(out model, out iter);
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34 selected = model.GetValue(iter, 0);
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35 }
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37 return selected;
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38 }
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39
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40 /// <summary>
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41 /// Gets the <see cref="TreeIter"/> for an item in a tree, or the Zero TreeIter if the item can't be found
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42 /// </summary>
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43 /// <returns>
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44 /// The TreeIter for the item, or TreeIter.Zero if it can't be found
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45 /// </returns>
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46 /// <param name='tree'>
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47 /// The <see cref="TreeView"/> to search the model of
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48 /// </param>
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49 /// <param name='item'>
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50 /// The item to find in the model
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51 /// </param>
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52 public static TreeIter GetItemIter(TreeView tree, object item)
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53 {
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54 TreeModel model = tree.Model;
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55 TreeIter iter;
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56 model.GetIterFirst(out iter);
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57 TreeIter itemIter = TreeIter.Zero;
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58
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59 do
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60 {
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61 if (model.GetValue(iter, 0).Equals(item))
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62 {
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63 itemIter = iter;
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64 break;
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65 }
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66 }
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67 while (model.IterNext(ref iter));
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68
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69 return itemIter;
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70 }
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71 }
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72 }