Last change
on this file since 2768 was
2768,
checked in by mkommend, 14 years ago
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added solution folders and sources for the netron library (ticket #867)
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File size:
1.8 KB
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1 | using System;
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2 | using System.Collections.Generic;
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3 | using System.Text;
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4 |
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5 | namespace Netron.Diagramming.Core
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6 | {
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7 | public class DeleteTool : AbstractTool
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8 | {
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9 | /// <summary>
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10 | /// Constructor.
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11 | /// </summary>
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12 | /// <param name="toolName"></param>
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13 | public DeleteTool(string toolName)
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14 | : base(toolName)
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15 | {
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16 | }
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17 |
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18 | protected override void OnActivateTool()
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19 | {
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20 | base.OnActivateTool();
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21 |
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22 | DeleteCommand cmd;
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23 |
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24 | if (Selection.SelectedItems.Count > 0)
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25 | {
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26 | // If any one entity in the selction can't be deleted,
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27 | // remove it from the selection.
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28 | for (int i = 0; i < Selection.SelectedItems.Count; i++ )
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29 | {
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30 | IDiagramEntity entity = Selection.SelectedItems[i];
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31 | if (entity.AllowDelete == false)
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32 | {
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33 | Selection.SelectedItems.Remove(entity);
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34 | i--;
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35 | }
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36 | }
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37 | cmd = new DeleteCommand(
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38 | this.Controller,
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39 | Selection.SelectedItems.Copy());
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40 | this.Controller.UndoManager.AddUndoCommand(cmd);
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41 |
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42 | // Alert each entity that they're about to be deleted.
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43 | foreach (IDiagramEntity entity in Selection.SelectedItems)
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44 | {
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45 | entity.OnBeforeDelete(cmd);
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46 | }
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47 |
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48 | cmd.Redo();
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49 |
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50 | // Alert each entity that they have been deleted.
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51 | foreach (IDiagramEntity entity in Selection.SelectedItems)
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52 | {
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53 | entity.OnAfterDelete(cmd);
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54 | }
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55 | }
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56 |
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57 | DeactivateTool();
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58 | }
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59 | }
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60 | }
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