private void BaseChartOnPostPaint(object sender, ChartPaintEventArgs eventArgs)
{
// 如果不是绘制Chart或者无需更新位置时将不执行重绘
if (!ReferenceEquals(eventArgs.ChartElement.GetType(), typeof(Chart)) || !_cursors.Any(item => item.Enabled))
{
return;
}
if (_parentChart.IsPlotting() && _parentPlotArea.Enabled)
{
RefreshAdapterAndCursorBoundry();
}
else
{
foreach (StripTabCursor cursor in _cursors)
{
cursor.Control.Visible = false;
}
}
}
private void RefreshUserConfigAxisRange()
{
// 如果正在绘图，则根据用户的配置和当前的数据更新坐标轴范围
if (_parentChart.IsPlotting())
{
_parentChart.RefreshAxesRange(_parentPlotArea);
_parentChart.RefreshScaleViewAndSendEvent(_parentPlotArea.ChartArea, this._baseAxis, false);
}
else
{
// 如果用户配置值非法，则自动计算
if (_specifiedMax <= _specifiedMin)
{
SetAxisRange(_maxData, _minData);
}
else
{
SetAxisRange(_specifiedMax, _specifiedMin);
}
RefreshGridsAndLabels();
}
}
internal void RefreshCursor()
{
if (!_parentChart.IsPlotting())
{
_baseCursor.LineColor = Color.Transparent;
_baseCursor.IsUserEnabled = false;
_baseCursor.IsUserSelectionEnabled = false;
// _baseAxis.ScaleView.Zoomable = false;
return;
}
switch (_mode)
{
case CursorMode.Disabled:
_baseCursor.LineColor = Color.Transparent;
_baseCursor.IsUserEnabled = false;
_baseCursor.IsUserSelectionEnabled = false;
// _baseAxis.ScaleView.Zoomable = false;
break;
case CursorMode.Cursor:
_baseCursor.LineColor = _color;
_baseCursor.IsUserEnabled = true;
_baseCursor.IsUserSelectionEnabled = false;
// _baseAxis.ScaleView.Zoomable = false;
break;
case CursorMode.Zoom:
_baseCursor.LineColor = _color;
_baseCursor.IsUserEnabled = true;
_baseCursor.IsUserSelectionEnabled = true;
// _baseAxis.ScaleView.Zoomable = true;
break;
default:
break;
}
}