/// <summary>
/// Chart MouseClick event handler
/// Function1:Expansion is returned before one
/// Function2:1 point select / all delete
/// Function3:1 point add select / 1 point delete
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">MouseEventArgs</param>
private void Chart_MouseClick(object sender, MouseEventArgs e)
{
if (_radioButtonScaling.Checked)
{
if (e.Button == MouseButtons.Right)
{ // The right-click of a mouse
// Expansion is returned before one(Function1)
SimcaGraphZoomHistoryItem histItem = new SimcaGraphZoomHistoryItem();
if (_graphZoomHistory.PopItem(out histItem))
{ // It succeeds in the position data acquisition in front of one.
UpdateGraphGridInterval(histItem.MinX, histItem.MinY, histItem.MaxX, histItem.MaxY, false);
//double center = (_chart.ChartAreas[0].AxisX.Maximum - _chart.ChartAreas[0].AxisX.Minimum) / 2.0;
//center += _chart.ChartAreas[0].AxisX.Minimum;
//double width = histItem.MaxX - histItem.MinX;
//double newLeft = center - (width / 2.0);
//center = (_chart.ChartAreas[0].AxisY.Maximum - _chart.ChartAreas[0].AxisY.Minimum) / 2.0;
//center += _chart.ChartAreas[0].AxisY.Minimum;
//double height = histItem.MaxY - histItem.MinY;
//double newBottom = center - (height / 2.0);
//UpdateGraphGridInterval(newLeft, newBottom, newLeft + width, newBottom + height, false);
}
}
}
else
{
Keys key = new Keys();
key = Control.ModifierKeys & (Keys.Control | Keys.Shift);
if (e.Button == MouseButtons.Left)
{
// Select Points-1 1point select / all delete(Function2)
if (key == Keys.None)
{
// 1 point select / all delete(Function2)
// A selective state is initialized.
foreach (Series item in _chart.Series)
{
foreach (DataPoint point in item.Points)
{
point.SetCustomProperty(PROPERTY_NAME_SELECTED, NOT_SELECTED);
point.MarkerBorderColor = point.MarkerColor;
}
}
// It set "Selected", if it is on a point.
HitTestResult hitResult;
hitResult = _chart.HitTest(((MouseEventArgs)e).X, ((MouseEventArgs)e).Y, ChartElementType.DataPoint);
if (hitResult.ChartElementType == ChartElementType.DataPoint)
{
int index = hitResult.PointIndex;
DataPoint data = hitResult.Series.Points[index];
hitResult.Series.Points[index].SetCustomProperty(PROPERTY_NAME_SELECTED, SELECTED);
hitResult.Series.Points[index].MarkerBorderColor = SELECTED_MARKER_BORDER_COLOR;
}
ChangeSelect(false);
}
if (key == Keys.Control)
{
// 1 point add select / 1 point delete(Function3)
HitTestResult hitResult;
hitResult = _chart.HitTest(((MouseEventArgs)e).X, ((MouseEventArgs)e).Y, ChartElementType.DataPoint);
if (hitResult.ChartElementType == ChartElementType.DataPoint)
{
int index = hitResult.PointIndex;
if (hitResult.Series.Points[index].GetCustomProperty(PROPERTY_NAME_SELECTED) == SELECTED)
{
hitResult.Series.Points[index].SetCustomProperty(PROPERTY_NAME_SELECTED, NOT_SELECTED);
hitResult.Series.Points[index].MarkerBorderColor
= hitResult.Series.Points[index].MarkerColor;
}
else
{
hitResult.Series.Points[index].SetCustomProperty(PROPERTY_NAME_SELECTED, SELECTED);
hitResult.Series.Points[index].MarkerBorderColor = SELECTED_MARKER_BORDER_COLOR;
}
ChangeSelect(false);
}
}
}
}
}
/// <summary>
/// Chart MouseUp event handler
/// Function1:The end of range selection(Expansion)
/// Function2:The end of range selection(Point selection)
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">MouseEventArgs</param>
private void Chart_MouseUp(object sender, MouseEventArgs e)
{
// Get mouse position(Graph coordinates)
double x;
double y;
try
{
x = _chart.ChartAreas[0].AxisX.PixelPositionToValue(e.X);
y = _chart.ChartAreas[0].AxisY.PixelPositionToValue(e.Y);
}
catch (ArgumentException)
{
InitMouseFunction();
return;
}
catch (InvalidOperationException)
{
InitMouseFunction();
return;
}
double minX = Math.Min(_moveStartX, x);
double maxX = Math.Max(_moveStartX, x);
double minY = Math.Min(_moveStartY, y);
double maxY = Math.Max(_moveStartY, y);
if (_radioButtonScaling.Checked)
{
if (_zoomAreaSelect)
{
// Expansion(Function1)
if (((maxX - minX) <= 0.001) || ((maxY - minY) <= 0.001))
{
InitMouseFunction();
return;
}
SimcaGraphZoomHistoryItem histItem = new SimcaGraphZoomHistoryItem();
histItem.MinX = _chart.ChartAreas[0].AxisX.Minimum;
histItem.MaxX = _chart.ChartAreas[0].AxisX.Maximum;
histItem.MinY = _chart.ChartAreas[0].AxisY.Minimum;
histItem.MaxY = _chart.ChartAreas[0].AxisY.Maximum;
_graphZoomHistory.PushItem(histItem);
UpdateGraphGridInterval(minX, minY, maxX, maxY, false);
}
}
else
{
if (_pointAreaSelect)
{
// Point selection(Function2)
foreach (Series item in _chart.Series)
{
foreach (DataPoint point in item.Points)
{
// Range outside is processing exclusion.
if ((minX > point.XValue) ||
(maxX < point.XValue) ||
(minY > point.YValues[0]) ||
(maxY < point.YValues[0]))
{
continue;
}
// Set "Selected"
point.SetCustomProperty(PROPERTY_NAME_SELECTED, SELECTED);
point.MarkerBorderColor = SELECTED_MARKER_BORDER_COLOR;
}
}
// Change of a selective points is notified.
ChangeSelect(false);
}
}
InitMouseFunction();
}
