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source: branches/HeuristicLab.Visualization/HeuristicLab.Visualization/3.3/ChartControl.cs @ 13832

Last change on this file since 13832 was 13832, checked in by jkarder, 8 years ago

#1265: worked on visualization

  • keep lower left of chart during resizing
File size: 15.6 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2016 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.Collections.Generic;
24using System.ComponentModel;
25using System.Drawing;
26using System.Drawing.Drawing2D;
27using System.Drawing.Imaging;
28using System.Linq;
29using System.Windows.Forms;
30
31namespace HeuristicLab.Visualization {
32  public partial class ChartControl : UserControl {
33    protected Bitmap Picture;
34    protected bool RenderingRequired;
35    protected Dictionary<Type, ChartMode> Modes = new Dictionary<Type, ChartMode>();
36    protected Stack<ChartMode> ModeStack = new Stack<ChartMode>();
37    protected List<ChartMode.Shortcut> Shortcuts = new List<ChartMode.Shortcut>();
38    protected ChartMode.Shortcut ActiveShortcut;
39
40    protected bool SuppressEvents { get; set; }
41    private bool SuppressRender { get; set; }
42
43    public bool ShowToolBar {
44      get { return !splitContainer.Panel1Collapsed; }
45      set { splitContainer.Panel1Collapsed = !value; }
46    }
47
48    private IChart chart;
49    public IChart Chart {
50      get { return chart; }
51      protected set {
52        if (chart != null) DeregisterChartEvents(chart);
53        chart = value;
54        chart.Enabled = Enabled;
55        pictureBox.Enabled = Enabled;
56        if (chart != null) RegisterChartEvents(chart);
57      }
58    }
59
60    private ChartMode mode;
61    private ChartMode defaultMode;
62    public ChartMode Mode {
63      get { return mode; }
64      set {
65        if (mode == value) return;
66        mode = value;
67        if (defaultMode == null) defaultMode = mode;
68        if (mode == null) mode = defaultMode;
69        SetModeButtonCheckedState();
70        SetModeMenuItemCheckedState();
71        SetPictureBoxCursor(GetPictureBoxCursor());
72        OnModeChanged();
73        if (chart != null) {
74          GenerateImage();
75        }
76      }
77    }
78
79    public SmoothingMode SmoothingMode { get; set; }
80
81    public bool ScaleOnResize { get; set; }
82
83    public bool IsRenderingPaused { get { return SuppressRender; } }
84
85    public ChartControl() : this(null) { }
86    public ChartControl(IChart defaultChart) {
87      InitializeComponent();
88      ScaleOnResize = true;
89      Chart = defaultChart ?? new Chart(0, 0, Width, Height);
90    }
91
92    public void AddChartModes(params ChartMode[] chartModes) {
93      foreach (var chartMode in chartModes) {
94        Modes.Add(chartMode.GetType(), chartMode);
95        foreach (var shortcut in chartMode.Shortcuts)
96          Shortcuts.Add(shortcut);
97      }
98
99      ReloadModeToolBar();
100      ReloadModeContextMenu();
101    }
102
103    public void SetTempChartMode(ChartMode chartMode) {
104      if (Mode == chartMode) return;
105
106      ModeStack.Push(mode);
107      Mode = chartMode;
108    }
109
110    public void ResetTempChartMode() {
111      if (ModeStack.Any())
112        Mode = ModeStack.Pop();
113    }
114
115    public void SuspendRendering() {
116      SuppressRender = true;
117    }
118
119    public void ResumeRendering() {
120      SuppressRender = false;
121      if (Chart != null) GenerateImage();
122    }
123
124    public void RefreshPicture() {
125      pictureBox.Refresh();
126    }
127
128    public void UpdatePicture() {
129      pictureBox.Update();
130    }
131
132    public Graphics CreatePictureGraphics() {
133      return pictureBox.CreateGraphics();
134    }
135
136    public System.Drawing.Rectangle GetPictureBounds() {
137      return pictureBox.Bounds;
138    }
139
140    protected virtual void ReloadModeToolBar() {
141      splitContainer.Panel1.Controls.Clear();
142
143      var chartModes = Modes.Values.ToList();
144      for (int i = 0; i < chartModes.Count; i++) {
145        var chartMode = chartModes[i];
146        var rb = CreateChartModeRadioButton(chartMode);
147        rb.Location = new Point(3, 3 + i * (rb.Height + rb.Margin.Vertical));
148        rb.TabIndex = i;
149        toolTip.SetToolTip(rb, chartMode.ToolTipText);
150        splitContainer.Panel1.Controls.Add(rb);
151      }
152
153      SetModeButtonCheckedState();
154    }
155
156    protected virtual void ReloadModeContextMenu() {
157      modeToolStripMenuItem.DropDownItems.Clear();
158
159      foreach (var chartMode in Modes.Values) {
160        var mi = CreateChartModeMenuItem(chartMode);
161        modeToolStripMenuItem.DropDownItems.Add(mi);
162      }
163
164      SetModeMenuItemCheckedState();
165    }
166
167    protected virtual void SetModeButtonCheckedState() {
168      foreach (var rb in splitContainer.Panel1.Controls.OfType<RadioButton>())
169        rb.Checked = rb.Tag == Mode;
170    }
171
172    protected virtual void SetModeMenuItemCheckedState() {
173      foreach (var mi in modeToolStripMenuItem.DropDownItems.OfType<ToolStripMenuItem>())
174        mi.Checked = mi.Tag == Mode;
175    }
176
177    protected virtual void SetPictureBoxCursor(Cursor cursor) {
178      if (pictureBox.Cursor != cursor) pictureBox.Cursor = cursor;
179    }
180
181    protected virtual Cursor GetPictureBoxCursor() {
182      return mode != null ? mode.Cursor : null;
183    }
184
185    protected virtual void RegisterChartEvents(IChart chart) {
186      chart.RedrawRequired += ChartOnUpdateRequired;
187    }
188
189    protected virtual void DeregisterChartEvents(IChart chart) {
190      chart.RedrawRequired -= ChartOnUpdateRequired;
191    }
192
193    protected virtual void ChartOnUpdateRequired(object sender, EventArgs e) {
194      if (SuppressRender) return;
195      GenerateImage();
196    }
197
198    #region PictureBox Events
199    protected virtual void PictureBoxOnSizeChanged(object sender, EventArgs e) {
200      if (Chart == null) return;
201      if (ScaleOnResize) {
202        if ((pictureBox.Width > 0) && (pictureBox.Height > 0) && (Chart != null)) {
203          var point = Chart.TransformPixelToWorld(new Point(pictureBox.Width, Chart.SizeInPixels.Height - pictureBox.Height));
204          var diff = Chart.UpperRight - point;
205          Chart.SetPosition(new PointD(Chart.LowerLeft.X, Chart.LowerLeft.Y),
206                            new PointD(Chart.UpperRight.X - diff.DX, Chart.UpperRight.Y - diff.DY));
207        }
208      }
209      GenerateImage();
210    }
211
212    protected virtual void PictureBoxOnVisibleChanged(object sender, EventArgs e) {
213      if (pictureBox.Visible && RenderingRequired) GenerateImage();
214    }
215
216    protected virtual void PictureBoxOnMouseClick(object sender, MouseEventArgs e) {
217      if (mode != null)
218        mode.HandleOnMouseClick(sender, e);
219    }
220
221    protected virtual void PictureBoxOnMouseDoubleClick(object sender, MouseEventArgs e) {
222      if (mode != null)
223        mode.HandleOnMouseDoubleClick(sender, e);
224    }
225
226    protected virtual void OnKeyDown(object sender, KeyEventArgs e) {
227      if (mode != null) {
228        mode.HandleOnKeyDown(sender, e);
229
230        if (e.Handled || ActiveShortcut != null) return;
231
232        foreach (var shortcut in Shortcuts) {
233          if (e.KeyCode == shortcut.Key && e.Modifiers == shortcut.Modifiers) {
234            ActiveShortcut = shortcut;
235            var downAction = shortcut.DownAction;
236            if (downAction != null) downAction();
237            e.Handled = true;
238            break;
239          }
240        }
241      }
242    }
243
244    protected virtual void OnKeyUp(object sender, KeyEventArgs e) {
245      if (mode != null) {
246        mode.HandleOnKeyUp(sender, e);
247
248        if (e.Handled || ActiveShortcut == null) return;
249
250        var modifiers = new List<Keys>(from key in Enum.GetValues(typeof(Keys)).Cast<Keys>()
251                                       where e.Modifiers.HasFlag(key)
252                                       select key);
253
254        if (ActiveShortcut.Key == e.KeyCode || ActiveShortcut.GetModifiers().Except(modifiers).Any()) {
255          var upAction = ActiveShortcut.UpAction;
256          if (upAction != null) upAction();
257          ActiveShortcut = null;
258          e.Handled = true;
259        }
260      }
261    }
262
263    protected virtual void PictureBoxOnMouseWheel(object sender, MouseEventArgs e) {
264      if (mode != null)
265        mode.HandleOnMouseWheel(sender, e);
266    }
267
268    protected virtual void PictureBoxOnMouseDown(object sender, MouseEventArgs e) {
269      if (mode != null)
270        mode.HandleOnMouseDown(sender, e);
271    }
272
273    protected virtual void PictureBoxOnMouseUp(object sender, MouseEventArgs e) {
274      if (mode != null)
275        mode.HandleOnMouseUp(sender, e);
276
277      if (Chart == null) return;
278
279      if (e.Button == MouseButtons.Right) {
280        propertiesToolStripMenuItem.Enabled = Chart.Group.SelectedPrimitives.Count() == 1;
281        oneLayerUpToolStripMenuItem.Enabled = Chart.Group.SelectedPrimitives.Count() == 1;
282        oneLayerDownToolStripMenuItem.Enabled = Chart.Group.SelectedPrimitives.Count() == 1;
283        intoForegroundToolStripMenuItem.Enabled = Chart.Group.SelectedPrimitives.Count() == 1;
284        intoBackgroundToolStripMenuItem.Enabled = Chart.Group.SelectedPrimitives.Count() == 1;
285      }
286    }
287
288    protected virtual void PictureBoxOnMouseMove(object sender, MouseEventArgs e) {
289      if (InvokeRequired) {
290        Invoke((Action<object, MouseEventArgs>)PictureBoxOnMouseMove, sender, e);
291      } else {
292        var toolTipText = Chart.GetToolTipText(e.Location);
293        if (toolTip.GetToolTip(pictureBox) != toolTipText) toolTip.SetToolTip(pictureBox, toolTipText);
294
295        if (mode != null)
296          mode.HandleOnMouseMove(sender, e);
297
298        SetPictureBoxCursor(GetPictureBoxCursor());
299      }
300    }
301
302    protected virtual void PictureBoxOnMouseEnter(object sender, EventArgs e) {
303      if (InvokeRequired) {
304        Invoke((Action<object, MouseEventArgs>)PictureBoxOnMouseEnter, sender, e);
305        return;
306      }
307      if (!Focused) pictureBox.Focus();
308
309      if (mode != null)
310        mode.HandleOnMouseEnter(sender, e);
311    }
312
313    protected virtual void PictureBoxOnMouseLeave(object sender, EventArgs e) {
314      if (mode != null)
315        mode.HandleOnMouseLeave(sender, e);
316    }
317
318    protected virtual void PictureBoxOnClick(object sender, EventArgs e) {
319      if (InvokeRequired) {
320        Invoke((Action<object, MouseEventArgs>)PictureBoxOnClick, sender, e);
321        return;
322      }
323      if (!Focused) pictureBox.Focus();
324
325      if (mode != null)
326        mode.HandleOnClick(sender, e);
327    }
328    #endregion
329
330    protected virtual void PictureBoxContextMenuStripOnOpening(object sender, CancelEventArgs e) { }
331
332    protected virtual void oneLayerUpToolStripMenuItem_Click(object sender, EventArgs e) {
333      if (Chart == null) return;
334      if (Chart.Group.SelectedPrimitives.Count() == 1) {
335        Chart.OneLayerUp(Chart.Group.SelectedPrimitives.First());
336      }
337    }
338    protected virtual void oneLayerDownToolStripMenuItem_Click(object sender, EventArgs e) {
339      if (Chart == null) return;
340      if (Chart.Group.SelectedPrimitives.Count() == 1) {
341        Chart.OneLayerDown(Chart.Group.SelectedPrimitives.First());
342      }
343    }
344    protected virtual void intoForegroundToolStripMenuItem_Click(object sender, EventArgs e) {
345      if (Chart == null) return;
346      if (Chart.Group.SelectedPrimitives.Count() == 1) {
347        Chart.IntoForeground(Chart.Group.SelectedPrimitives.First());
348      }
349    }
350    protected virtual void intoBackgroundToolStripMenuItem_Click(object sender, EventArgs e) {
351      if (Chart == null) return;
352      if (Chart.Group.SelectedPrimitives.Count() == 1) {
353        Chart.IntoBackground(Chart.Group.SelectedPrimitives.First());
354      }
355    }
356    protected virtual void propertiesToolStripMenuItem_Click(object sender, EventArgs e) {
357      if (Chart == null) return;
358      if (Chart.Group.SelectedPrimitives.Count() == 1) {
359        using (var dialog = new PropertiesDialog(Chart.Group.SelectedPrimitives.First())) {
360          dialog.ShowDialog(this);
361        }
362      }
363    }
364    protected virtual void saveImageToolStripMenuItem_Click(object sender, EventArgs e) {
365      if (Picture == null) return;
366
367      if (saveFileDialog.ShowDialog() == DialogResult.OK) {
368        var format = ImageFormat.Bmp;
369        var filename = saveFileDialog.FileName.ToLower();
370        if (filename.EndsWith("emf")) {
371          using (var g1 = Graphics.FromImage(Picture)) {
372            var rectangle = new System.Drawing.Rectangle(0, 0, Picture.Width, Picture.Height);
373            using (var metafile = new Metafile(filename, g1.GetHdc(), rectangle, MetafileFrameUnit.Pixel, EmfType.EmfPlusDual))
374            using (var g2 = Graphics.FromImage(metafile))
375              Chart.Render(g2, pictureBox.Width, pictureBox.Height);
376          }
377        } else {
378          using (var graphics = Graphics.FromImage(Picture))
379            Chart.Render(graphics, Picture.Width, Picture.Height);
380
381          if (filename.EndsWith("jpg")) {
382            format = ImageFormat.Jpeg;
383          } else if (filename.EndsWith("gif")) {
384            format = ImageFormat.Gif;
385          } else if (filename.EndsWith("png")) {
386            format = ImageFormat.Png;
387          } else if (filename.EndsWith("tif")) {
388            format = ImageFormat.Tiff;
389          }
390
391          Picture.Save(saveFileDialog.FileName, format);
392        }
393      }
394    }
395
396    protected virtual void GenerateImage() {
397      if (InvokeRequired) {
398        Invoke((Action)GenerateImage);
399        return;
400      }
401      if (!Visible) {
402        RenderingRequired = true;
403      } else {
404        if ((pictureBox.Width == 0) || (pictureBox.Height == 0)) {
405          pictureBox.Image = pictureBox.ErrorImage;
406          if (Picture != null) Picture.Dispose();
407          Picture = null;
408        } else {
409          if (Picture != null) Picture.Dispose();
410          Picture = new Bitmap(pictureBox.Width, pictureBox.Height);
411          using (var graphics = Graphics.FromImage(Picture)) {
412            graphics.SmoothingMode = SmoothingMode;
413            graphics.SetClip(new System.Drawing.Rectangle(0, 0, pictureBox.Width, pictureBox.Height));
414            Chart.Render(graphics, pictureBox.Width, pictureBox.Height);
415          }
416        }
417        pictureBox.Image = Picture;
418        RenderingRequired = false;
419      }
420    }
421
422    public event EventHandler ModeChanged;
423    protected void OnModeChanged() {
424      var handler = ModeChanged;
425      if (handler != null) handler(this, EventArgs.Empty);
426    }
427
428    private void ChartControl_Load(object sender, EventArgs e) {
429      if (!SuppressRender) GenerateImage();
430    }
431
432    #region Helpers
433    private RadioButton CreateChartModeRadioButton(ChartMode chartMode) {
434      var rb = new RadioButton {
435        Appearance = Appearance.Button,
436        Image = chartMode.Image,
437        Size = new Size(24, 24),
438        TabStop = true,
439        Tag = chartMode,
440        UseVisualStyleBackColor = true
441      };
442
443      rb.CheckedChanged += (sender, args) => { if (rb.Checked) chartMode.Select(); };
444
445      return rb;
446    }
447
448    private ToolStripMenuItem CreateChartModeMenuItem(ChartMode chartMode) {
449      var mi = new ToolStripMenuItem(chartMode.Text) {
450        CheckOnClick = true,
451        Image = chartMode.Image,
452        Tag = chartMode
453      };
454
455      mi.CheckedChanged += (sender, args) => { if (mi.Checked) chartMode.Select(); };
456
457      return mi;
458    }
459    #endregion
460  }
461}
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