1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2010 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.ComponentModel;
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24 | using System.Drawing;
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25 | using System.Windows.Forms;
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26 | using System.Windows.Forms.DataVisualization.Charting;
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27 |
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28 | namespace HeuristicLab.Visualization.ChartControlsExtensions {
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29 | public partial class EnhancedChart : Chart {
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30 | public EnhancedChart()
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31 | : base() {
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32 | InitializeComponent();
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33 | EnableDoubleClickResetsZoom = true;
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34 | EnableMiddleClickPanning = true;
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35 | CustomizeAllChartAreas();
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36 | }
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37 |
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38 | [DefaultValue(true)]
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39 | public bool EnableDoubleClickResetsZoom { get; set; }
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40 | [DefaultValue(true)]
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41 | public bool EnableMiddleClickPanning { get; set; }
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42 |
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43 | public static void CustomizeChartArea(ChartArea chartArea) {
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44 | foreach (Axis axis in chartArea.Axes) {
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45 | axis.MajorGrid.LineColor = SystemColors.GradientInactiveCaption;
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46 | axis.MajorTickMark.TickMarkStyle = TickMarkStyle.AcrossAxis;
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47 | axis.ScrollBar.BackColor = Color.Transparent;
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48 | axis.ScrollBar.LineColor = Color.Gray;
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49 | axis.ScrollBar.ButtonColor = SystemColors.GradientInactiveCaption;
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50 | axis.ScrollBar.ButtonStyle = ScrollBarButtonStyles.All;
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51 | axis.ScrollBar.Size = 12;
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52 | axis.TitleFont = new Font(axis.TitleFont.FontFamily, 10);
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53 | }
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54 | chartArea.CursorX.IsUserSelectionEnabled = true;
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55 | chartArea.CursorY.IsUserSelectionEnabled = true;
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56 | chartArea.CursorX.IsUserEnabled = false;
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57 | chartArea.CursorY.IsUserEnabled = false;
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58 | chartArea.CursorX.SelectionColor = Color.Gray;
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59 | chartArea.CursorY.SelectionColor = Color.Gray;
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60 | }
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61 |
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62 | public void CustomizeAllChartAreas() {
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63 | foreach (ChartArea chartArea in ChartAreas) {
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64 | CustomizeChartArea(chartArea);
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65 | }
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66 | }
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67 |
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68 | #region Mouse Event Ehancements
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69 | protected override void OnMouseDoubleClick(MouseEventArgs e) {
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70 | if (EnableDoubleClickResetsZoom) {
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71 | HitTestResult result = HitTest(e.X, e.Y);
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72 | if (result.ChartArea != null && (result.ChartElementType == ChartElementType.PlottingArea || result.ChartElementType == ChartElementType.Gridlines)) {
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73 | foreach (var axis in result.ChartArea.Axes)
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74 | axis.ScaleView.ZoomReset(int.MaxValue);
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75 | }
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76 | }
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77 | base.OnMouseDoubleClick(e);
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78 | }
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79 |
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80 | #region Panning
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81 | private class PanningSupport {
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82 | public ChartArea ChartArea { get; private set; }
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83 |
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84 | private Point PixelStartPosition;
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85 | private PointF ChartStartPosition;
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86 |
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87 | public PanningSupport(Point pixelStartPos, ChartArea chartArea, Size size) {
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88 | PixelStartPosition = pixelStartPos;
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89 | ChartArea = chartArea;
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90 | ChartStartPosition = new PointF(
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91 | (float)chartArea.AxisX.ScaleView.Position,
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92 | (float)chartArea.AxisY.ScaleView.Position);
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93 | }
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94 |
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95 | public double ChartX(double pixelX, int width) {
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96 | return ChartStartPosition.X - (pixelX - PixelStartPosition.X) *
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97 | (ChartArea.AxisX.ScaleView.ViewMaximum - ChartArea.AxisX.ScaleView.ViewMinimum) /
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98 | (width * ChartArea.Position.Width * ChartArea.InnerPlotPosition.Width / 100 / 100);
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99 | }
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100 | public double ChartY(double pixelY, int height) {
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101 | return ChartStartPosition.Y + (pixelY - PixelStartPosition.Y) *
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102 | (ChartArea.AxisY.ScaleView.ViewMaximum - ChartArea.AxisY.ScaleView.ViewMinimum) /
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103 | (height * ChartArea.Position.Height * ChartArea.InnerPlotPosition.Height / 100 / 100);
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104 | }
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105 | }
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106 |
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107 | private PanningSupport panning = null;
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108 |
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109 | protected override void OnMouseDown(MouseEventArgs e) {
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110 | if (EnableMiddleClickPanning && e.Button == MouseButtons.Middle) {
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111 | HitTestResult result = HitTest(e.X, e.Y);
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112 | if (result.ChartArea != null)
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113 | panning = new PanningSupport(e.Location, result.ChartArea, Size);
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114 | }
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115 | base.OnMouseDown(e);
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116 | }
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117 |
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118 | protected override void OnMouseUp(MouseEventArgs e) {
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119 | if (e.Button == MouseButtons.Middle && panning != null)
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120 | panning = null;
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121 | base.OnMouseUp(e);
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122 | }
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123 |
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124 | protected override void OnMouseMove(MouseEventArgs e) {
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125 | if (panning != null) {
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126 | double x = panning.ChartX(e.Location.X, Width);
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127 | double y = panning.ChartY(e.Location.Y, Height);
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128 | if (panning.ChartArea.CursorX.Interval > 0) {
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129 | x = Math.Round(x / panning.ChartArea.CursorX.Interval) * panning.ChartArea.CursorX.Interval;
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130 | y = Math.Round(y / panning.ChartArea.CursorY.Interval) * panning.ChartArea.CursorY.Interval;
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131 | }
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132 | panning.ChartArea.AxisX.ScaleView.Scroll(x);
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133 | panning.ChartArea.AxisY.ScaleView.Scroll(y);
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134 | }
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135 | base.OnMouseMove(e);
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136 | }
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137 | #endregion
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138 | #endregion
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139 |
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140 | private void saveImageToolStripMenuItem_Click(object sender, System.EventArgs e) {
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141 | SaveFileDialog saveFileDialog = new SaveFileDialog();
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142 |
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143 | // Sets the current file name filter string, which determines
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144 | // the choices that appear in the "Save as file type" or
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145 | // "Files of type" box in the dialog box.
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146 | saveFileDialog.Filter = "Bitmap (*.bmp)|*.bmp|JPEG (*.jpg)|*.jpg|EMF (*.emf)|*.emf|PNG (*.png)|*.png|GIF (*.gif)|*.gif|TIFF (*.tif)|*.tif";
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147 | saveFileDialog.FilterIndex = 2;
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148 | saveFileDialog.RestoreDirectory = true;
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149 |
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150 | // Set image file format
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151 | if (saveFileDialog.ShowDialog() == DialogResult.OK) {
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152 | ChartImageFormat format = ChartImageFormat.Bmp;
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153 | string filename = saveFileDialog.FileName.ToLower();
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154 | if (filename.EndsWith("bmp")) {
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155 | format = ChartImageFormat.Bmp;
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156 | } else if (filename.EndsWith("jpg")) {
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157 | format = ChartImageFormat.Jpeg;
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158 | } else if (filename.EndsWith("emf")) {
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159 | format = ChartImageFormat.EmfDual;
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160 | } else if (filename.EndsWith("gif")) {
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161 | format = ChartImageFormat.Gif;
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162 | } else if (filename.EndsWith("png")) {
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163 | format = ChartImageFormat.Png;
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164 | } else if (filename.EndsWith("tif")) {
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165 | format = ChartImageFormat.Tiff;
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166 | }
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167 |
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168 | // Save image
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169 | SaveImage(saveFileDialog.FileName, format);
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170 | }
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171 | }
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172 |
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173 | private void copyImageToClipboardBitmapToolStripMenuItem_Click(object sender, System.EventArgs e) {
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174 | System.IO.MemoryStream stream = new System.IO.MemoryStream();
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175 | SaveImage(stream, System.Drawing.Imaging.ImageFormat.Bmp);
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176 | Bitmap bmp = new Bitmap(stream);
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177 | Clipboard.SetDataObject(bmp);
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178 | }
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179 | }
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180 | }
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