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source: trunk/sources/HeuristicLab.Operators.Views.GraphVisualization/3.3/OperatorGraphVisualization/OperatorGraphView.cs @ 4435

Last change on this file since 4435 was 4435, checked in by mkommend, 14 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: 13.0 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.Drawing;
24using System.Linq;
25using System.Windows.Forms;
26using HeuristicLab.Core;
27using HeuristicLab.MainForm;
28using HeuristicLab.MainForm.WindowsForms;
29using Netron.Diagramming.Core;
30
31namespace HeuristicLab.Operators.Views.GraphVisualization {
32  [View("OperatorGraph View (Chart)")]
33  [Content(typeof(OperatorGraph), true)]
34  public partial class OperatorGraphView : AsynchronousContentView {
35    public OperatorGraphView() {
36      InitializeComponent();
37
38      this.graphVisualizationInfoView.Controller.OnShowContextMenu += new EventHandler<EntityMenuEventArgs>(Controller_OnShowContextMenu);
39      this.graphVisualizationInfoView.Controller.Model.Selection.OnNewSelection += new EventHandler(Controller_SelectionChanged);
40      this.graphVisualizationInfoView.Controller.OnMouseDown += new EventHandler<MouseEventArgs>(Controller_OnMouseDown);
41      foreach (ITool tool in this.graphVisualizationInfoView.Controller.Tools) {
42        tool.OnToolActivate += new EventHandler<ToolEventArgs>(tool_OnToolActivate);
43        tool.OnToolDeactivate += new EventHandler<ToolEventArgs>(tool_OnToolDeactivate);
44      }
45    }
46
47    public new OperatorGraph Content {
48      get { return (OperatorGraph)base.Content; }
49      set { base.Content = value; }
50    }
51
52    protected override void OnContentChanged() {
53      if (Content != null) {
54        bool createdVisualizationInfo = false;
55        if (this.VisualizationInfo == null) {
56          this.VisualizationInfo = new OperatorGraphVisualizationInfo(this.Content);
57          createdVisualizationInfo = true;
58        }
59        this.graphVisualizationInfoView.Content = this.VisualizationInfo;
60        if (createdVisualizationInfo)
61          this.graphVisualizationInfoView.RelayoutGraph();
62      } else {
63        this.graphVisualizationInfoView.Content = null;
64      }
65    }
66
67    protected override void SetEnabledStateOfControls() {
68      base.SetEnabledStateOfControls();
69      if (Content == null) {
70        selectButton.Enabled = false;
71        panButton.Enabled = false;
72        relayoutButton.Enabled = false;
73        zoomToFitButton.Enabled = false;
74        zoomInButton.Enabled = false;
75        zoomOutButton.Enabled = false;
76        screenshotButton.Enabled = false;
77        detailsViewHost.Enabled = false;
78        connectButton.Enabled = false;
79      } else {
80        selectButton.Enabled = true;
81        panButton.Enabled = true;
82        relayoutButton.Enabled = true;
83        zoomToFitButton.Enabled = true;
84        zoomInButton.Enabled = true;
85        zoomOutButton.Enabled = true;
86        screenshotButton.Enabled = true;
87        detailsViewHost.Enabled = true;
88        connectButton.Enabled = !ReadOnly;
89      }
90    }
91
92    private OperatorGraphVisualizationInfo VisualizationInfo {
93      get { return Content.VisualizationInfo as OperatorGraphVisualizationInfo; }
94      set { this.Content.VisualizationInfo = value; }
95    }
96
97    private void Controller_SelectionChanged(object sender, EventArgs e) {
98      this.detailsViewHost.ViewType = null;
99      this.detailsViewHost.Content = null;
100
101      CollectionBase<IDiagramEntity> selectedObjects = this.graphVisualizationInfoView.Controller.Model.Selection.SelectedItems;
102      if (selectedObjects.Count == 1) {
103        IShape shape = selectedObjects[0] as IShape;
104        if (shape != null) {
105          IOperatorShapeInfo shapeInfo = shape.Tag as IOperatorShapeInfo;
106          IOperator op = this.VisualizationInfo.GetOperatorForShapeInfo(shapeInfo);
107          this.detailsViewHost.Content = op;
108        }
109      }
110
111      IConnector connector = this.graphVisualizationInfoView.Controller.Model.Selection.Connector;
112      if (connector != null) {
113        IShape shape = connector.Parent as IShape;
114        string connectorName = connector.Name;
115        if (shape == null) {
116          shape = connector.AttachedTo.Parent as IShape; //connection connector selected
117          connectorName = connector.AttachedTo.Name;
118        }
119        if (shape != null) {
120          IOperatorShapeInfo shapeInfo = shape.Tag as IOperatorShapeInfo;
121          IOperator op = this.VisualizationInfo.GetOperatorForShapeInfo(shapeInfo);
122          if (connectorName != "Predecessor") {
123            IParameter parameter = op.Parameters.Where(p => p.Name == connectorName).First();
124            this.detailsViewHost.ViewType = null;
125            this.detailsViewHost.Content = parameter;
126          }
127        }
128      }
129
130    }
131
132    private void Controller_OnMouseDown(object sender, MouseEventArgs e) {
133      if (e.Clicks >= 2) {
134        IShape shape = this.graphVisualizationInfoView.Controller.Model.GetShapeAt(e.Location);
135        if (shape != null) {
136          IOperatorShapeInfo shapeInfo = shape.Tag as IOperatorShapeInfo;
137          if (shapeInfo != null) {
138            IOperator op = this.VisualizationInfo.GetOperatorForShapeInfo(shapeInfo);
139            IContentView view = MainFormManager.MainForm.ShowContent(op);
140            if (view != null) {
141              view.ReadOnly = this.ReadOnly;
142              view.Locked = this.Locked;
143            }
144            HandledMouseEventArgs eventArgs = e as HandledMouseEventArgs;
145            if (eventArgs != null)
146              eventArgs.Handled = true;
147          }
148        }
149      }
150    }
151
152    #region context menu
153    private void Controller_OnShowContextMenu(object sender, EntityMenuEventArgs e) {
154      IShape shape = this.graphVisualizationInfoView.Controller.Model.GetShapeAt(e.MouseEventArgs.Location);
155      if (shape != null) {
156        IShapeInfo shapeInfo = shape.Tag as IShapeInfo;
157        this.shapeContextMenu.Tag = shapeInfo;
158        PointF worldPoint = this.graphVisualizationInfoView.Controller.View.WorldToView(e.MouseEventArgs.Location);
159        this.shapeContextMenu.Show(this, Point.Round(worldPoint));
160      }
161    }
162
163    private void shapeContextMenu_Opening(object sender, System.ComponentModel.CancelEventArgs e) {
164      IOperatorShapeInfo shapeInfo = this.shapeContextMenu.Tag as IOperatorShapeInfo;
165      if (shapeInfo != null) {
166        IOperator op = this.VisualizationInfo.GetOperatorForShapeInfo(shapeInfo);
167        this.initialToolStripMenuItem.Checked = this.Content.InitialOperator == op;
168        this.initialToolStripMenuItem.Enabled = !ReadOnly && !Locked;
169        this.breakPointToolStripMenuItem.Checked = op.Breakpoint;
170        this.breakPointToolStripMenuItem.Enabled = !ReadOnly && !Locked;
171      }
172    }
173
174    private void openViewToolStripMenuItem_Click(object sender, EventArgs e) {
175      IOperatorShapeInfo shapeInfo = this.shapeContextMenu.Tag as IOperatorShapeInfo;
176      if (shapeInfo != null) {
177        IOperator op = this.VisualizationInfo.GetOperatorForShapeInfo(shapeInfo);
178        IContentView view = MainFormManager.MainForm.ShowContent(op);
179        if (view != null) {
180          view.ReadOnly = this.ReadOnly;
181          view.Locked = this.Locked;
182        }
183      }
184    }
185
186    private void initialOperatorToolStripMenuItem_Click(object sender, EventArgs e) {
187      IOperatorShapeInfo shapeInfo = this.shapeContextMenu.Tag as IOperatorShapeInfo;
188      if (this.VisualizationInfo.InitialShape == shapeInfo)
189        this.VisualizationInfo.InitialShape = null;
190      else
191        this.VisualizationInfo.InitialShape = shapeInfo;
192    }
193
194    private void breakPointToolStripMenuItem_Click(object sender, EventArgs e) {
195      IOperatorShapeInfo shapeInfo = this.shapeContextMenu.Tag as IOperatorShapeInfo;
196      if (shapeInfo != null) {
197        IOperator op = this.VisualizationInfo.GetOperatorForShapeInfo(shapeInfo);
198        op.Breakpoint = !op.Breakpoint;
199      }
200    }
201    #endregion
202
203    #region drag and drop
204    private void OperatorGraphView_DragEnterOver(object sender, DragEventArgs e) {
205      e.Effect = DragDropEffects.None;
206      Type type = e.Data.GetData("Type") as Type;
207      if (!ReadOnly && (type != null) && (typeof(IOperator).IsAssignableFrom(type))) {
208        if ((e.KeyState & 32) == 32) e.Effect = DragDropEffects.Link;  // ALT key
209        else if ((e.KeyState & 4) == 4) e.Effect = DragDropEffects.Move;  // SHIFT key
210        else if ((e.AllowedEffect & DragDropEffects.Copy) == DragDropEffects.Copy) e.Effect = DragDropEffects.Copy;
211        else if ((e.AllowedEffect & DragDropEffects.Move) == DragDropEffects.Move) e.Effect = DragDropEffects.Move;
212        else if ((e.AllowedEffect & DragDropEffects.Link) == DragDropEffects.Link) e.Effect = DragDropEffects.Link;
213      }
214    }
215
216    private void OperatorGraphView_DragDrop(object sender, DragEventArgs e) {
217      if (e.Effect != DragDropEffects.None) {
218        IOperator op = e.Data.GetData("Value") as IOperator;
219        if ((e.Effect & DragDropEffects.Copy) == DragDropEffects.Copy) op = (IOperator)op.Clone();
220        IOperatorShapeInfo shapeInfo = OperatorShapeInfoFactory.CreateOperatorShapeInfo(op);
221        Point mouse = new Point(MousePosition.X, MousePosition.Y);
222        Point screen = this.graphVisualizationInfoView.PointToScreen(new Point(0, 0));
223        Point control = new Point(mouse.X - screen.X, mouse.Y - screen.Y);
224        PointF worldPoint = this.graphVisualizationInfoView.Controller.View.ViewToWorld(control);
225
226        if (worldPoint.X < 0)
227          worldPoint.X = 0;
228        if (worldPoint.Y < 0)
229          worldPoint.Y = 0;
230
231        shapeInfo.Location = Point.Round(worldPoint);
232        this.VisualizationInfo.AddShapeInfo(op, shapeInfo);
233      }
234    }
235    #endregion
236
237    private void tool_OnToolActivate(object sender, ToolEventArgs e) {
238      Button button = GetButtonForTool(e.Properties.Name);
239      if (button != null)
240        button.Enabled = false;
241    }
242
243    private void tool_OnToolDeactivate(object sender, ToolEventArgs e) {
244      Button button = GetButtonForTool(e.Properties.Name);
245      if (button != null)
246        button.Enabled = true;
247    }
248
249    private Button GetButtonForTool(string toolName) {
250      Button button = null;
251      switch (toolName) {
252        case ControllerBase.SelectionToolName:
253          button = this.selectButton;
254          break;
255        case ControllerBase.PanToolName:
256          button = this.panButton;
257          break;
258        case ControllerBase.ConnectionToolName:
259          button = this.connectButton;
260          break;
261        case ControllerBase.ZoomAreaToolName:
262          button = this.zoomToFitButton;
263          break;
264      }
265      return button;
266    }
267
268    private void selectButton_Click(object sender, EventArgs e) {
269      ITool tool = this.graphVisualizationInfoView.Controller.Tools.Where(t => t.Name == ControllerBase.SelectionToolName).First();
270      this.graphVisualizationInfoView.Controller.DeactivateAllTools();
271    }
272
273    private void panButton_Click(object sender, EventArgs e) {
274      this.graphVisualizationInfoView.Controller.ActivateTool(ControllerBase.PanToolName);
275    }
276
277    private void connectButton_Click(object sender, EventArgs e) {
278      this.graphVisualizationInfoView.Controller.ActivateTool(ControllerBase.ConnectionToolName);
279    }
280
281    private void relayoutButton_Click(object sender, EventArgs e) {
282      this.graphVisualizationInfoView.RelayoutGraph();
283    }
284
285    private void zoomAreaButton_Click(object sender, EventArgs e) {
286      this.graphVisualizationInfoView.Controller.View.ZoomFit();
287    }
288
289    private void zoomInButton_Click(object sender, EventArgs e) {
290      this.graphVisualizationInfoView.Controller.ActivateTool(ControllerBase.ZoomInToolName);
291    }
292
293    private void zoomOutButton_Click(object sender, EventArgs e) {
294      this.graphVisualizationInfoView.Controller.ActivateTool(ControllerBase.ZoomOutToolName);
295    }
296
297    private void screenshotButton_Click(object sender, EventArgs e) {
298      Bitmap bitmap = ImageExporter.FromBundle(new Bundle(this.graphVisualizationInfoView.Controller.Model.Paintables), this.graphVisualizationInfoView.Controller.View.Graphics);
299      SaveFileDialog saveFileDialog = new SaveFileDialog();
300      saveFileDialog.Title = "Save Screenshot";
301      saveFileDialog.DefaultExt = "png";
302      saveFileDialog.Filter = "Portable Network Graphics|*.png|All Files|*.*";
303      saveFileDialog.FilterIndex = 1;
304      saveFileDialog.AddExtension = true;
305
306      if (saveFileDialog.ShowDialog() == DialogResult.OK) {
307        bitmap.Save(saveFileDialog.FileName);
308      }
309    }
310  }
311}
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