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source: trunk/sources/HeuristicLab.Operators.Views.GraphVisualization.Views/3.3/OperatorGraphView.cs @ 8000

Last change on this file since 8000 was 8000, checked in by jkarder, 12 years ago

#1747:

  • added support to pan with the middle mouse button
  • removed pan button
File size: 13.6 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2012 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 HeuristicLab.Netron.CustomTools;
30using Netron.Diagramming.Core;
31
32namespace HeuristicLab.Operators.Views.GraphVisualization.Views {
33  [View("OperatorGraph View (Chart)")]
34  [Content(typeof(OperatorGraph), true)]
35  public partial class OperatorGraphView : AsynchronousContentView {
36    private ITool lastActiveTool;
37
38    public OperatorGraphView() {
39      InitializeComponent();
40
41      this.graphVisualizationInfoView.Controller.OnShowContextMenu += new EventHandler<EntityMenuEventArgs>(Controller_OnShowContextMenu);
42      this.graphVisualizationInfoView.Controller.Model.Selection.OnNewSelection += new EventHandler(Controller_SelectionChanged);
43      this.graphVisualizationInfoView.Controller.OnMouseDown += new EventHandler<MouseEventArgs>(Controller_OnMouseDown);
44      this.graphVisualizationInfoView.Controller.ParentControl.MouseDown += new MouseEventHandler(ParentControl_MouseDown);
45      this.graphVisualizationInfoView.Controller.ParentControl.MouseUp += new MouseEventHandler(ParentControl_MouseUp);
46      foreach (ITool tool in this.graphVisualizationInfoView.Controller.Tools) {
47        tool.OnToolActivate += new EventHandler<ToolEventArgs>(tool_OnToolActivate);
48        tool.OnToolDeactivate += new EventHandler<ToolEventArgs>(tool_OnToolDeactivate);
49      }
50    }
51
52    public new OperatorGraph Content {
53      get { return (OperatorGraph)base.Content; }
54      set { base.Content = value; }
55    }
56
57    protected override void OnContentChanged() {
58      if (Content != null) {
59        bool createdVisualizationInfo = false;
60        if (this.VisualizationInfo == null) {
61          this.VisualizationInfo = new OperatorGraphVisualizationInfo(this.Content);
62          createdVisualizationInfo = true;
63        }
64        this.graphVisualizationInfoView.Content = this.VisualizationInfo;
65        if (createdVisualizationInfo)
66          this.graphVisualizationInfoView.RelayoutGraph();
67      } else {
68        this.graphVisualizationInfoView.Content = null;
69      }
70    }
71
72    protected override void SetEnabledStateOfControls() {
73      base.SetEnabledStateOfControls();
74      if (Content == null) {
75        selectButton.Enabled = false;
76        relayoutButton.Enabled = false;
77        zoomToFitButton.Enabled = false;
78        zoomInButton.Enabled = false;
79        zoomOutButton.Enabled = false;
80        screenshotButton.Enabled = false;
81        detailsViewHost.Enabled = false;
82        connectButton.Enabled = false;
83      } else {
84        selectButton.Enabled = true;
85        relayoutButton.Enabled = true;
86        zoomToFitButton.Enabled = true;
87        zoomInButton.Enabled = true;
88        zoomOutButton.Enabled = true;
89        screenshotButton.Enabled = true;
90        detailsViewHost.Enabled = true;
91        connectButton.Enabled = !ReadOnly;
92      }
93    }
94
95    private OperatorGraphVisualizationInfo VisualizationInfo {
96      get { return Content.VisualizationInfo as OperatorGraphVisualizationInfo; }
97      set { this.Content.VisualizationInfo = value; }
98    }
99
100    private void Controller_SelectionChanged(object sender, EventArgs e) {
101      this.detailsViewHost.ViewType = null;
102      this.detailsViewHost.Content = null;
103
104      CollectionBase<IDiagramEntity> selectedObjects = this.graphVisualizationInfoView.Controller.Model.Selection.SelectedItems;
105      if (selectedObjects.Count == 1) {
106        IShape shape = selectedObjects[0] as IShape;
107        if (shape != null) {
108          IOperatorShapeInfo shapeInfo = shape.Tag as IOperatorShapeInfo;
109          IOperator op = this.VisualizationInfo.GetOperatorForShapeInfo(shapeInfo);
110          this.detailsViewHost.Content = op;
111        }
112      }
113
114      IConnector connector = this.graphVisualizationInfoView.Controller.Model.Selection.Connector;
115      if (connector != null) {
116        IShape shape = connector.Parent as IShape;
117        string connectorName = connector.Name;
118        if (shape == null) {
119          shape = connector.AttachedTo.Parent as IShape; //connection connector selected
120          connectorName = connector.AttachedTo.Name;
121        }
122        if (shape != null) {
123          IOperatorShapeInfo shapeInfo = shape.Tag as IOperatorShapeInfo;
124          IOperator op = this.VisualizationInfo.GetOperatorForShapeInfo(shapeInfo);
125          if (connectorName != "Predecessor") {
126            IParameter parameter = op.Parameters.Where(p => p.Name == connectorName).First();
127            this.detailsViewHost.ViewType = null;
128            this.detailsViewHost.Content = parameter;
129          }
130        }
131      }
132
133    }
134
135    private void Controller_OnMouseDown(object sender, MouseEventArgs e) {
136      if (e.Clicks >= 2) {
137        IShape shape = this.graphVisualizationInfoView.Controller.Model.GetShapeAt(e.Location);
138        if (shape != null) {
139          IOperatorShapeInfo shapeInfo = shape.Tag as IOperatorShapeInfo;
140          if (shapeInfo != null) {
141            IOperator op = this.VisualizationInfo.GetOperatorForShapeInfo(shapeInfo);
142            IContentView view = MainFormManager.MainForm.ShowContent(op);
143            if (view != null) {
144              view.ReadOnly = this.ReadOnly;
145              view.Locked = this.Locked;
146            }
147            HandledMouseEventArgs eventArgs = e as HandledMouseEventArgs;
148            if (eventArgs != null)
149              eventArgs.Handled = true;
150          }
151        }
152      }
153    }
154
155    void ParentControl_MouseDown(object sender, MouseEventArgs e) {
156      lastActiveTool = this.graphVisualizationInfoView.Controller.ActiveTool;
157      if (e.Button == MouseButtons.Middle) {
158        if (!(lastActiveTool is CustomPanTool)) this.graphVisualizationInfoView.Controller.ActivateTool(CustomPanTool.ToolName);
159      }
160    }
161
162    void ParentControl_MouseUp(object sender, MouseEventArgs e) {
163      if (e.Button == MouseButtons.Middle) {
164        if (lastActiveTool != null) this.graphVisualizationInfoView.Controller.ActivateTool(lastActiveTool.Name);
165        else this.graphVisualizationInfoView.Controller.DeactivateAllTools();
166      }
167    }
168
169    #region context menu
170    private void Controller_OnShowContextMenu(object sender, EntityMenuEventArgs e) {
171      IShape shape = this.graphVisualizationInfoView.Controller.Model.GetShapeAt(e.MouseEventArgs.Location);
172      if (shape != null) {
173        IShapeInfo shapeInfo = shape.Tag as IShapeInfo;
174        this.shapeContextMenu.Tag = shapeInfo;
175        PointF worldPoint = this.graphVisualizationInfoView.Controller.View.WorldToView(e.MouseEventArgs.Location);
176        this.shapeContextMenu.Show(this, Point.Round(worldPoint));
177      }
178    }
179
180    private void shapeContextMenu_Opening(object sender, System.ComponentModel.CancelEventArgs e) {
181      IOperatorShapeInfo shapeInfo = this.shapeContextMenu.Tag as IOperatorShapeInfo;
182      if (shapeInfo != null) {
183        IOperator op = this.VisualizationInfo.GetOperatorForShapeInfo(shapeInfo);
184        this.initialToolStripMenuItem.Checked = this.Content.InitialOperator == op;
185        this.initialToolStripMenuItem.Enabled = !ReadOnly && !Locked;
186        this.breakPointToolStripMenuItem.Checked = op.Breakpoint;
187        this.breakPointToolStripMenuItem.Enabled = !Locked;
188      }
189    }
190
191    private void openViewToolStripMenuItem_Click(object sender, EventArgs e) {
192      IOperatorShapeInfo shapeInfo = this.shapeContextMenu.Tag as IOperatorShapeInfo;
193      if (shapeInfo != null) {
194        IOperator op = this.VisualizationInfo.GetOperatorForShapeInfo(shapeInfo);
195        IContentView view = MainFormManager.MainForm.ShowContent(op);
196        if (view != null) {
197          view.ReadOnly = this.ReadOnly;
198          view.Locked = this.Locked;
199        }
200      }
201    }
202
203    private void initialOperatorToolStripMenuItem_Click(object sender, EventArgs e) {
204      IOperatorShapeInfo shapeInfo = this.shapeContextMenu.Tag as IOperatorShapeInfo;
205      if (this.VisualizationInfo.InitialShape == shapeInfo)
206        this.VisualizationInfo.InitialShape = null;
207      else
208        this.VisualizationInfo.InitialShape = shapeInfo;
209    }
210
211    private void breakPointToolStripMenuItem_Click(object sender, EventArgs e) {
212      IOperatorShapeInfo shapeInfo = this.shapeContextMenu.Tag as IOperatorShapeInfo;
213      if (shapeInfo != null) {
214        IOperator op = this.VisualizationInfo.GetOperatorForShapeInfo(shapeInfo);
215        op.Breakpoint = !op.Breakpoint;
216      }
217    }
218    #endregion
219
220    #region drag and drop
221    private void OperatorGraphView_DragEnterOver(object sender, DragEventArgs e) {
222      e.Effect = DragDropEffects.None;
223      if (!ReadOnly && (e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat) is IOperator)) {
224        if ((e.KeyState & 32) == 32) e.Effect = DragDropEffects.Link;  // ALT key
225        else if ((e.KeyState & 4) == 4) e.Effect = DragDropEffects.Move;  // SHIFT key
226        else if (e.AllowedEffect.HasFlag(DragDropEffects.Copy)) e.Effect = DragDropEffects.Copy;
227        else if (e.AllowedEffect.HasFlag(DragDropEffects.Move)) e.Effect = DragDropEffects.Move;
228        else if (e.AllowedEffect.HasFlag(DragDropEffects.Link)) e.Effect = DragDropEffects.Link;
229      }
230    }
231
232    private void OperatorGraphView_DragDrop(object sender, DragEventArgs e) {
233      if (e.Effect != DragDropEffects.None) {
234        IOperator op = e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat) as IOperator;
235        if (e.Effect.HasFlag(DragDropEffects.Copy)) op = (IOperator)op.Clone();
236        IOperatorShapeInfo shapeInfo = OperatorShapeInfoFactory.CreateOperatorShapeInfo(op);
237        Point mouse = new Point(MousePosition.X, MousePosition.Y);
238        Point screen = this.graphVisualizationInfoView.PointToScreen(new Point(0, 0));
239        Point control = new Point(mouse.X - screen.X, mouse.Y - screen.Y);
240        PointF worldPoint = this.graphVisualizationInfoView.Controller.View.ViewToWorld(control);
241
242        if (worldPoint.X < 0)
243          worldPoint.X = 0;
244        if (worldPoint.Y < 0)
245          worldPoint.Y = 0;
246
247        shapeInfo.Location = Point.Round(worldPoint);
248        this.VisualizationInfo.AddShapeInfo(op, shapeInfo);
249      }
250    }
251    #endregion
252
253    private void tool_OnToolActivate(object sender, ToolEventArgs e) {
254      Button button = GetButtonForTool(e.Properties.Name);
255      if (button != null)
256        button.Enabled = false;
257    }
258
259    private void tool_OnToolDeactivate(object sender, ToolEventArgs e) {
260      Button button = GetButtonForTool(e.Properties.Name);
261      if (button != null)
262        button.Enabled = true;
263    }
264
265    private Button GetButtonForTool(string toolName) {
266      Button button = null;
267      switch (toolName) {
268        case ControllerBase.SelectionToolName:
269          button = this.selectButton;
270          break;
271        case ControllerBase.ConnectionToolName:
272          button = this.connectButton;
273          break;
274        case ControllerBase.ZoomAreaToolName:
275          button = this.zoomToFitButton;
276          break;
277      }
278      return button;
279    }
280
281    private void selectButton_Click(object sender, EventArgs e) {
282      ITool tool = this.graphVisualizationInfoView.Controller.Tools.Where(t => t.Name == ControllerBase.SelectionToolName).First();
283      this.graphVisualizationInfoView.Controller.DeactivateAllTools();
284    }
285
286    private void connectButton_Click(object sender, EventArgs e) {
287      this.graphVisualizationInfoView.Controller.ActivateTool(ControllerBase.ConnectionToolName);
288    }
289
290    private void relayoutButton_Click(object sender, EventArgs e) {
291      this.graphVisualizationInfoView.RelayoutGraph();
292    }
293
294    private void zoomAreaButton_Click(object sender, EventArgs e) {
295      this.graphVisualizationInfoView.Controller.View.ZoomFit();
296    }
297
298    private void zoomInButton_Click(object sender, EventArgs e) {
299      this.graphVisualizationInfoView.Controller.ActivateTool(ControllerBase.ZoomInToolName);
300    }
301
302    private void zoomOutButton_Click(object sender, EventArgs e) {
303      this.graphVisualizationInfoView.Controller.ActivateTool(ControllerBase.ZoomOutToolName);
304    }
305
306    private void screenshotButton_Click(object sender, EventArgs e) {
307      Bitmap bitmap = ImageExporter.FromBundle(new Bundle(this.graphVisualizationInfoView.Controller.Model.Paintables), this.graphVisualizationInfoView.Controller.View.Graphics);
308      SaveFileDialog saveFileDialog = new SaveFileDialog();
309      saveFileDialog.Title = "Save Screenshot";
310      saveFileDialog.DefaultExt = "png";
311      saveFileDialog.Filter = "Portable Network Graphics|*.png|All Files|*.*";
312      saveFileDialog.FilterIndex = 1;
313      saveFileDialog.AddExtension = true;
314
315      if (saveFileDialog.ShowDialog() == DialogResult.OK) {
316        bitmap.Save(saveFileDialog.FileName);
317      }
318    }
319  }
320}
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