/// <summary>
/// Clean up the resources used by the user control.
/// </summary>
/// <param name="disposing">True, to release both managed and unmanaged resources; false to release only unmanaged resources.</param>
protected override void Cleanup(bool disposing)
{
try
{
// Clear all controls from the selected control list.
m_SelectedControlList.Clear();
if (disposing)
{
// Method called by consumer code. Call the Dispose method of any managed data members that implement the dispose method.
// Cleanup managed objects by calling their Dispose() methods.
if (components != null)
{
components.Dispose();
}
// Check each of the channels in the channel collection.
if (m_ChannelCollection != null)
{
// Dispose of each channel in the collection.
foreach (Channel channel in m_ChannelCollection)
{
channel.Dispose();
}
m_ChannelCollection.Clear();
m_ChannelCollection = null;
}
}
// Whether called by consumer code or the garbage collector free all unmanaged resources and set the value of managed data
// members to null.
m_Gridline = null;
m_AxisLineXandY = null;
#region - [Detach the event handler methods.] -
this.m_HScrollBar.Scroll -= new System.Windows.Forms.ScrollEventHandler(this.m_HScrollBar_Scroll);
this.m_ToolStripMenuItemResetRange.Click -= new EventHandler(m_ToolStripMenuItemResetTimeSpan_Click);
this.m_ToolStripMenuItemChangeRange.Click -= new EventHandler(m_ToolStripMenuItemNewTimeSpan_Click);
this.m_ToolStripMenuItemZoom.Click -= new EventHandler(m_ToolStripMenuItemZoom_Click);
this.m_ToolStripMenuItemCancel.Click -= new EventHandler(m_ToolStripMenuItemCancel_Click);
this.m_ToolStripMenuItemNextChannel.Click -= new EventHandler(m_ToolStripMenuItemNextChannel_Click);
this.m_ToolStripMenuItemPreviousChannel.Click -= new EventHandler(m_ToolStripMenuItemPreviousChannel_Click);
this.m_ToolStripMenuItemResetAxis.Click -= new EventHandler(m_ToolStripMenuItemResetAxis_Click);
this.MouseDown -= new System.Windows.Forms.MouseEventHandler(Plotter_MouseDown);
this.MouseUp -= new System.Windows.Forms.MouseEventHandler(Plotter_MouseUp);
this.MouseLeave -= new EventHandler(Plotter_MouseLeave);
this.MouseMove -= new System.Windows.Forms.MouseEventHandler(Plotter_MouseMove);
this.Leave -= new EventHandler(Plotter_Leave);
this.GotFocus -= new EventHandler(Plotter_GotFocus);
Plotter.MultiCursorMouseMove -= new System.Windows.Forms.MouseEventHandler(Plotter_MultiCursorMouseMove);
#endregion - [Detach the event handler methods.] -
#region - [Component Designer Variables] -
this.m_HScrollBar = null;
this.m_ContextMenuStrip = null;
this.m_ToolStripMenuItemResetRange = null;
this.m_ToolStripMenuItemChangeRange = null;
this.m_ToolStripMenuItemZoom = null;
this.m_ToolStripMenuItemCancel = null;
this.m_ToolStripSeparatorCancel = null;
this.m_ToolStripMenuItemNextChannel = null;
this.m_ToolStripMenuItemPreviousChannel = null;
this.m_ToolStripMenuItemResetAxis = null;
#endregion - [Component Designer Variables] -
}
catch (Exception)
{
// Don't do anything, just ensure that an exception is not thrown.
}
finally
{
base.Cleanup(disposing);
}
}
/// <summary>
/// Creates and initializes a new plotter component.
/// </summary>
public Plotter()
{
InitializeComponent();
m_InvalidData = false;
// Keep track of the initial plot interval.
m_InitialPlotIntervalMs = m_PlotIntervalMs;
// Set the GraphAreaColour to the default value.
m_GraphAreaColor = m_GraphAreaNormalColor;
// Keep track of the time span selection process.
m_XRangeSelection = new PlotterRangeSelection();
m_XRangeSelection.PlotterRangeSelectionState = PlotterRangeSelectionState.InitialState;
// Add the default channel definitions.
m_ChannelCollection = new ChannelCollection();
// Add a channel to the collection.
Channels.Add(new Channel(Channel.DefaultMinValue, Channel.DefaultMaxValue, "", true, Color.ForestGreen));
// Add a further two channels to the collection for triple analogue plots.
if (m_AnalogueIOType == AnalogueType.TripleAnalogue)
{
Channels.Add(new Channel(Channel.DefaultMinValue, Channel.DefaultMaxValue, "", true, Color.Blue));
Channels.Add(new Channel(Channel.DefaultMinValue, Channel.DefaultMaxValue, "", false, Color.Red));
}
// Instantiate the Gridline and AxisLine references.
m_Gridline = new Gridline(this);
m_AxisLineXandY = new AxisLine(this);
// Set the Style of the UserControl.
this.SetStyle(ControlStyles.DoubleBuffer | ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint, true);
this.UpdateStyles();
// Calculate the available graph area of the UserControl.
CalculateGraphArea();
Debug.Assert(m_GraphArea.Height == (m_GraphArea.Bottom - m_GraphArea.Top), "Problem Ctor");
m_PlotterPenPosition = new TimeSpan((long)(m_XRange.Duration().Ticks * 0.9));
// Evaluate the range, in ms, of the plot and set up the horizontal scroll bar accordingly.
int xRangeInMs = (int)(m_XRange.Duration().Ticks / TimeSpan.TicksPerMillisecond);
m_HScrollBar.Maximum = xRangeInMs / PlotIntervalMs;
m_HScrollBar.Value = xRangeInMs / PlotIntervalMs;
m_HScrollBar.Visible = false;
m_RightDisplayLimit = xRangeInMs + m_LeftDisplayLimit;
m_SavedXRange = m_XRange;
// Register the event handler for the MultiCursorMouseMove event.
Plotter.MultiCursorMouseMove += new MouseEventHandler(Plotter_MultiCursorMouseMove);
// Register the event handlers for the Leave and GotFocus events.
Leave += new EventHandler(Plotter_Leave);
GotFocus += new EventHandler(Plotter_GotFocus);
}
