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1 // This file (ComboBoxUtils.cs) is a part of the IBBoard.GtkSharp project and is copyright 2010 IBBoard
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2 //
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3 // The file and the library/program it is in are licensed and distributed, without warranty, under the GNU LGPL license, either version 3 of the License or (at your option) any later version. Please see COPYING for more information and the full license.
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4
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5 using System;
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6 using System.Collections.Generic;
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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 public delegate string ObjectToStringRenderingMethod<OBJECT_TYPE>(OBJECT_TYPE obj);
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12
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13 public class ComboBoxUtils
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14 {
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11
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15 private static int DEFAULT_VALUE_COLUMN = 1;
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16 private static int DEFAULT_TEXT_COLUMN = 0;
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17
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18 public static void FillCombo<LIST_TYPE>(ComboBox combo, IList<LIST_TYPE> itemList)
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19 {
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20 FillCombo(combo, itemList, delegate(LIST_TYPE obj){return obj.ToString();});
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21 }
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22
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11
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23 public static void FillCombo<LIST_TYPE>(ComboBox combo, IList<LIST_TYPE> itemList, ObjectToStringRenderingMethod<LIST_TYPE> objectToString)
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24 {
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25 combo.Clear();
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26 CellRendererText cell = new CellRendererText();
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27 combo.PackStart(cell, false);
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28 combo.AddAttribute(cell, "text", 0);
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29 Type[] types = new Type[2];
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30 types[DEFAULT_VALUE_COLUMN] = typeof(LIST_TYPE);
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31 types[DEFAULT_TEXT_COLUMN] = typeof(string);
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32 ListStore store = new ListStore(types);
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33 combo.Model = store;
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34
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35 foreach (LIST_TYPE item in itemList)
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36 {
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37 object[] values = new object[2];
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38 values[DEFAULT_VALUE_COLUMN] = item;
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39 values[DEFAULT_TEXT_COLUMN] = objectToString(item);
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40 store.AppendValues(values);
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41 }
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42 }
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43
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44 public static void SelectItem(ComboBox combo, object item)
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45 {
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46 TreeModel model = combo.Model;
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47 TreeIter iter;
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48 model.GetIterFirst(out iter);
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49
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50 do
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51 {
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52 GLib.Value rowItem = new GLib.Value();
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53 combo.Model.GetValue(iter, DEFAULT_VALUE_COLUMN, ref rowItem);
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54
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55 if (item.Equals(rowItem.Val))
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56 {
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57 combo.SetActiveIter(iter);
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58 break;
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59 }
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60 }
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61 while (combo.Model.IterNext(ref iter));
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62 }
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63
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64 public static void SelectIndex(ComboBox combo, int idx)
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65 {
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66 Gtk.TreeIter iter;
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67 combo.Model.IterNthChild(out iter, idx);
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68 combo.SetActiveIter(iter);
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69 }
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11
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70
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71 public static LIST_TYPE GetSelectedItem<LIST_TYPE>(ComboBox combo)
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72 {
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73 return GetSelectedItem<LIST_TYPE>(combo, DEFAULT_VALUE_COLUMN);
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74 }
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75
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76 public static LIST_TYPE GetSelectedItem<LIST_TYPE>(ComboBox combo, int valueColumn)
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77 {
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78 TreeIter iter;
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79 combo.GetActiveIter(out iter);
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80 return (LIST_TYPE)combo.Model.GetValue(iter, valueColumn);
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81 }
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82 }
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83 }
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