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source: trunk/sources/HeuristicLab.Optimizer/3.3/FileManager.cs @ 4435

Last change on this file since 4435 was 4435, checked in by mkommend, 13 years ago

Adjusted the SetEnabledStateOfControls method in all views, added the Enabled property into the IView interface and adapted the ViewHost, View and ContentView class (ticket #1155).

File size: 6.1 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Linq;
24using System.Windows.Forms;
25using HeuristicLab.Common;
26using HeuristicLab.MainForm;
27using HeuristicLab.PluginInfrastructure;
28
29namespace HeuristicLab.Optimizer {
30  internal static class FileManager {
31    private static NewItemDialog newItemDialog;
32    private static OpenFileDialog openFileDialog;
33    private static SaveFileDialog saveFileDialog;
34
35    static FileManager() {
36      newItemDialog = null;
37      openFileDialog = null;
38      saveFileDialog = null;
39    }
40
41    public static void New() {
42      if (newItemDialog == null) newItemDialog = new NewItemDialog();
43      if (newItemDialog.ShowDialog() == DialogResult.OK) {
44        IView view = MainFormManager.MainForm.ShowContent(newItemDialog.Item);
45        if (view == null)
46          ErrorHandling.ShowErrorDialog("There is no view for the new item. It cannot be displayed.", new InvalidOperationException("No View Available"));
47      }
48    }
49
50    public static void Open() {
51      if (openFileDialog == null) {
52        openFileDialog = new OpenFileDialog();
53        openFileDialog.Title = "Open Item";
54        openFileDialog.FileName = "Item";
55        openFileDialog.Multiselect = true;
56        openFileDialog.DefaultExt = "hl";
57        openFileDialog.Filter = "HeuristicLab Files|*.hl|All Files|*.*";
58      }
59
60      if (openFileDialog.ShowDialog() == DialogResult.OK) {
61        foreach (string filename in openFileDialog.FileNames) {
62          ((OptimizerMainForm)MainFormManager.MainForm).SetAppStartingCursor();
63          ContentManager.LoadAsync(filename, LoadingCompleted);
64        }
65      }
66    }
67    private static void LoadingCompleted(IStorableContent content, Exception error) {
68      try {
69        if (error != null) throw error;
70        IView view = MainFormManager.MainForm.ShowContent(content);
71        if (view == null)
72          ErrorHandling.ShowErrorDialog("There is no view for the loaded item. It cannot be displayed.", new InvalidOperationException("No View Available"));
73      }
74      catch (Exception ex) {
75        ErrorHandling.ShowErrorDialog((Control)MainFormManager.MainForm, "Cannot open file.", ex);
76      }
77      finally {
78        ((OptimizerMainForm)MainFormManager.MainForm).ResetAppStartingCursor();
79      }
80    }
81
82    public static void Save() {
83      IContentView activeView = MainFormManager.MainForm.ActiveView as IContentView;
84      if (activeView != null) {
85        Save(activeView);
86      }
87    }
88    private static void Save(IContentView view) {
89      IStorableContent content = view.Content as IStorableContent;
90      if (!view.Locked && content != null) {
91        if (string.IsNullOrEmpty(content.Filename))
92          SaveAs(view);
93        else {
94          ((OptimizerMainForm)MainFormManager.MainForm).SetAppStartingCursor();
95          SetEnabledStateOfContentViews(content, false);
96          ContentManager.SaveAsync(content, content.Filename, true, SavingCompleted);
97        }
98      }
99    }
100    public static void SaveAs() {
101      IContentView activeView = MainFormManager.MainForm.ActiveView as IContentView;
102      if (activeView != null) {
103        SaveAs(activeView);
104      }
105    }
106    public static void SaveAs(IContentView view) {
107      IStorableContent content = view.Content as IStorableContent;
108      if (!view.Locked && content != null) {
109        if (saveFileDialog == null) {
110          saveFileDialog = new SaveFileDialog();
111          saveFileDialog.Title = "Save Item";
112          saveFileDialog.DefaultExt = "hl";
113          saveFileDialog.Filter = "Uncompressed HeuristicLab Files|*.hl|HeuristicLab Files|*.hl|All Files|*.*";
114          saveFileDialog.FilterIndex = 2;
115        }
116        saveFileDialog.FileName = string.IsNullOrEmpty(content.Filename) ? "Item" : content.Filename;
117
118        if (saveFileDialog.ShowDialog() == DialogResult.OK) {
119          ((OptimizerMainForm)MainFormManager.MainForm).SetAppStartingCursor();
120          SetEnabledStateOfContentViews(content, false);
121          if (saveFileDialog.FilterIndex == 1) {
122            ContentManager.SaveAsync(content, saveFileDialog.FileName, false, SavingCompleted);
123          } else {
124            ContentManager.SaveAsync(content, saveFileDialog.FileName, true, SavingCompleted);
125          }
126        }
127      }
128    }
129    private static void SavingCompleted(IStorableContent content, Exception error) {
130      try {
131        SetEnabledStateOfContentViews(content, true);
132        if (error != null) throw error;
133        MainFormManager.GetMainForm<OptimizerMainForm>().UpdateTitle();
134      }
135      catch (Exception ex) {
136        ErrorHandling.ShowErrorDialog((Control)MainFormManager.MainForm, "Cannot save file.", ex);
137      }
138      finally {
139        ((OptimizerMainForm)MainFormManager.MainForm).ResetAppStartingCursor();
140      }
141    }
142
143    private static void SetEnabledStateOfContentViews(IStorableContent content, bool enabled) {
144      OptimizerMainForm mainForm = MainFormManager.GetMainForm<OptimizerMainForm>();
145      if (mainForm.InvokeRequired)
146        mainForm.Invoke((Action<IStorableContent, bool>)SetEnabledStateOfContentViews, content, enabled);
147      else {
148        var views = MainFormManager.MainForm.Views.OfType<IContentView>().Where(v => v.Content == content).ToList();
149        views.ForEach(v => v.Enabled = enabled);
150      }
151    }
152  }
153}
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