1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using System;
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23 | using System.Drawing;
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24 | using System.Windows.Forms;
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25 |
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26 | namespace HeuristicLab.Visualization {
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27 | public abstract class ChartMode {
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28 | protected readonly ChartControl chartControl;
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29 | protected Cursor cursor;
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30 | protected Point buttonDownPoint;
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31 | protected Point previousLocation;
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32 | protected int mouseClickCount;
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33 |
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34 | public abstract Image Image { get; }
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35 | public abstract string Text { get; }
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36 |
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37 | public virtual string ToolTipText { get { return Text; } }
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38 |
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39 | public virtual Cursor Cursor {
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40 | get { return cursor ?? (cursor = Cursors.Default); }
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41 | }
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42 |
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43 | private bool selected;
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44 | public bool Selected {
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45 | get { return selected; }
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46 | set {
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47 | if (selected == value) return;
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48 | selected = value;
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49 | if (selected) {
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50 | chartControl.Mode = this;
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51 | OnSelected();
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52 | } else {
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53 | if (chartControl.Mode == this)
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54 | chartControl.Mode = null;
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55 | OnDeselected();
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56 | }
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57 | OnSelectedChanged();
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58 | }
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59 | }
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60 |
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61 | protected ChartMode(ChartControl control) {
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62 | chartControl = control;
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63 | chartControl.ModeChanged += (sender, args) => Selected = chartControl.Mode == this;
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64 | }
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65 |
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66 | public void Select() { Selected = true; }
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67 | public void Deselect() { Selected = false; }
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68 |
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69 | protected virtual void OnSelected() { }
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70 | protected virtual void OnDeselected() { }
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71 |
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72 | public virtual void HandleOnKeyDown(object sender, KeyEventArgs e) {
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73 | switch (e.KeyCode) {
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74 | case Keys.Escape:
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75 | Deselect();
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76 | break;
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77 | }
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78 | }
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79 |
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80 | public virtual void HandleOnKeyUp(object sender, KeyEventArgs e) { }
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81 | public virtual void HandleOnMouseClick(object sender, MouseEventArgs e) { }
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82 | public virtual void HandleOnMouseDoubleClick(object sender, MouseEventArgs e) { }
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83 |
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84 | public virtual void HandleOnMouseDown(object sender, MouseEventArgs e) {
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85 | buttonDownPoint = e.Location;
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86 | mouseClickCount = e.Clicks;
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87 | }
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88 |
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89 | public virtual void HandleOnMouseUp(object sender, MouseEventArgs e) { }
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90 |
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91 | public virtual void HandleOnMouseMove(object sender, MouseEventArgs e) {
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92 | previousLocation = e.Location;
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93 | }
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94 |
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95 | public virtual void HandleOnMouseWheel(object sender, MouseEventArgs e) { }
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96 | public virtual void HandleOnMouseEnter(object sender, EventArgs e) { }
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97 | public virtual void HandleOnMouseLeave(object sender, EventArgs e) { }
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98 | public virtual void HandleOnClick(object sender, EventArgs e) { }
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99 |
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100 | public event EventHandler SelectedChanged;
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101 | protected virtual void OnSelectedChanged() {
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102 | var handler = SelectedChanged;
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103 | if (handler != null) handler(this, EventArgs.Empty);
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104 | }
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105 | }
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106 | }
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