/// <summary>
/// Method used to set SegmentSelectionBrush to SelectedIndex segment
/// </summary>
/// <param name="newIndex"></param>
/// <param name="oldIndex"></param>
protected internal override void SelectedIndexChanged(int newIndex, int oldIndex)
{
ChartSelectionChangedEventArgs chartSelectionChangedEventArgs;
if (ActualArea != null && ActualArea.SelectionBehaviour != null)
{
// Resets the adornment selection when the mouse pointer moved away from the adornment or clicked the same adornment.
if (ActualArea.SelectionBehaviour.SelectionStyle == SelectionStyle.Single)
{
if (SelectedSegmentsIndexes.Contains(oldIndex))
{
SelectedSegmentsIndexes.Remove(oldIndex);
}
OnResetSegment(oldIndex);
}
if (newIndex >= 0 && ActualArea.GetEnableSegmentSelection())
{
if (!SelectedSegmentsIndexes.Contains(newIndex))
{
SelectedSegmentsIndexes.Add(newIndex);
}
// Selects the adornment when the mouse is over or clicked on adornments(adornment selection).
if (adornmentInfo != null && adornmentInfo.HighlightOnSelection)
{
UpdateAdornmentSelection(newIndex);
}
if (ActualArea != null && Segments.Count > 0)
{
chartSelectionChangedEventArgs = new ChartSelectionChangedEventArgs()
{
SelectedSegment = Segments[0],
SelectedSegments = Area.SelectedSegments,
SelectedSeries = this,
SelectedIndex = newIndex,
PreviousSelectedIndex = oldIndex,
NewPointInfo = GetDataPoint(newIndex),
PreviousSelectedSeries = null,
PreviousSelectedSegment = null,
IsSelected = true
};
chartSelectionChangedEventArgs.PreviousSelectedSeries = this.ActualArea.PreviousSelectedSeries;
if (oldIndex != -1)
{
chartSelectionChangedEventArgs.PreviousSelectedSegment = Segments[0];
chartSelectionChangedEventArgs.OldPointInfo = GetDataPoint(oldIndex);
}
(ActualArea as SfChart).OnSelectionChanged(chartSelectionChangedEventArgs);
PreviousSelectedIndex = newIndex;
}
else if (Segments.Count == 0)
{
triggerSelectionChangedEventOnLoad = true;
}
}
else if (newIndex == -1 && ActualArea != null)
{
chartSelectionChangedEventArgs = new ChartSelectionChangedEventArgs()
{
SelectedSegment = null,
SelectedSegments = Area.SelectedSegments,
SelectedSeries = null,
SelectedIndex = newIndex,
PreviousSelectedIndex = oldIndex,
PreviousSelectedSegment = null,
PreviousSelectedSeries = this,
IsSelected = false
};
if (oldIndex != -1)
{
chartSelectionChangedEventArgs.PreviousSelectedSegment = Segments[0];
chartSelectionChangedEventArgs.OldPointInfo = GetDataPoint(oldIndex);
}
(ActualArea as SfChart).OnSelectionChanged(chartSelectionChangedEventArgs);
PreviousSelectedIndex = newIndex;
}
}
else if (newIndex >= 0 && Segments.Count == 0)
{
triggerSelectionChangedEventOnLoad = true;
}
}
/// <summary>
/// Method used to set SegmentSelectionBrush to <see cref="SelectedIndex"/> <see cref="ChartSegment3D"/>
/// and trigger chart selection event.
/// </summary>
/// <param name="newIndex">The New Index</param>
/// <param name="oldIndex">The Old Index</param>
protected internal override void SelectedIndexChanged(int newIndex, int oldIndex)
{
ChartSelectionChangedEventArgs chartSelectionChangedEventArgs;
if (this.ActualArea != null)
{
ChartSegment3D segment;
// Reset the oldIndex segment Interior
if (this.Area.SelectionStyle == SelectionStyle3D.Single)
{
if (SelectedSegmentsIndexes.Contains(oldIndex))
{
SelectedSegmentsIndexes.Remove(oldIndex);
}
this.OnResetSegment(oldIndex);
}
if (newIndex >= 0 && (ActualArea as SfChart3D).EnableSegmentSelection)
{
if (!SelectedSegmentsIndexes.Contains(newIndex))
{
SelectedSegmentsIndexes.Add(newIndex);
}
// Set the SegmentSelectionBrush to newIndex segment Interior
if (newIndex < Segments.Count && this.SegmentSelectionBrush != null)
{
segment = Segments[newIndex] as ChartSegment3D;
segment.BindProperties();
foreach (var item in segment.Polygons)
{
item.Fill = this.SegmentSelectionBrush;
item.ReDraw();
}
}
if (newIndex < Segments.Count)
{
chartSelectionChangedEventArgs = new ChartSelectionChangedEventArgs()
{
SelectedSegment = this.SelectedSegment,
SelectedSegments = this.Area.SelectedSegments,
SelectedSeries = this,
SelectedIndex = newIndex,
PreviousSelectedIndex = oldIndex,
NewPointInfo = Segments[newIndex].Item,
PreviousSelectedSegment = null,
PreviousSelectedSeries = null,
IsSelected = true
};
chartSelectionChangedEventArgs.PreviousSelectedSeries = this.Area.PreviousSelectedSeries;
if (oldIndex >= 0 && oldIndex < Segments.Count)
{
chartSelectionChangedEventArgs.PreviousSelectedSegment = this.Segments[oldIndex];
chartSelectionChangedEventArgs.OldPointInfo = Segments[oldIndex].Item;
}
(ActualArea as SfChart3D).OnSelectionChanged(chartSelectionChangedEventArgs);
this.PreviousSelectedIndex = newIndex;
}
else if (Segments.Count == 0)
{
this.triggerSelectionChangedEventOnLoad = true;
}
}
else if (newIndex == -1 && this.ActualArea != null)
{
chartSelectionChangedEventArgs = new ChartSelectionChangedEventArgs()
{
SelectedSegment = null,
SelectedSegments = this.Area.SelectedSegments,
SelectedSeries = null,
SelectedIndex = newIndex,
PreviousSelectedIndex = oldIndex,
PreviousSelectedSegment = null,
PreviousSelectedSeries = this,
IsSelected = false
};
if (oldIndex != -1 && oldIndex < Segments.Count)
{
chartSelectionChangedEventArgs.PreviousSelectedSegment = this.Segments[oldIndex];
chartSelectionChangedEventArgs.OldPointInfo = Segments[oldIndex].Item;
}
(ActualArea as SfChart3D).OnSelectionChanged(chartSelectionChangedEventArgs);
this.PreviousSelectedIndex = newIndex;
}
}
}
/// <summary>
/// Updates the <see cref="ChartSeries3D"/> on mouse down selection.
/// </summary>
/// <param name="currentIndex">The Current Selected Index</param>
internal void OnMouseDownSelection(int currentIndex)
{
bool seriesSelection = this.Area.EnableSeriesSelection &&
(IsSideBySide || this is ScatterSeries3D ||
this is CircularSeriesBase3D ||
(!this.IsSideBySide &&
((!this.Area.EnableSegmentSelection) ||
(this.Area.EnableSegmentSelection && currentIndex == -1))));
if (seriesSelection)
{
int index = this.Area.Series.IndexOf(this as ChartSeries3D);
selectionChangingEventArgs.IsDataPointSelection = false;
bool isCancel = this.RaiseSelectionChanging(index, this.Area.SeriesSelectedIndex);
if (!isCancel)
{
if (this.Area.SelectionStyle != SelectionStyle3D.Single && this.Area.SelectedSeriesCollection.Contains(this))
{
this.Area.SelectedSeriesCollection.Remove(this);
if (this.Area.SeriesSelectedIndex == index)
{
this.Area.SeriesSelectedIndex = -1;
}
SfChart3D.OnResetSeries(this);
}
else if (this.Area.SeriesSelectedIndex == index)
{
this.Area.SeriesSelectedIndex = -1;
}
else if (index > -1)
{
this.Area.SeriesSelectedIndex = index;
this.Area.PreviousSelectedSeries = this;
}
}
}
else if (this.Area.EnableSegmentSelection)
{
selectionChangingEventArgs.IsDataPointSelection = true;
bool isCancel = this.RaiseSelectionChanging(currentIndex, this.SelectedIndex);
if (!isCancel)
{
if (this.Area.SelectionStyle != SelectionStyle3D.Single && SelectedSegmentsIndexes.Contains(currentIndex))
{
SelectedSegmentsIndexes.Remove(currentIndex);
if (this.SelectedIndex == currentIndex)
{
this.SelectedIndex = -1;
}
this.OnResetSegment(currentIndex);
}
else if (this.SelectedIndex == currentIndex)
{
this.SelectedIndex = -1;
}
else if (currentIndex > -1)
{
this.SelectedIndex = currentIndex;
this.Area.PreviousSelectedSeries = this;
}
}
}
}
/// <summary>
/// Updates the series when mouse moved.
/// </summary>
/// <param name="element">The Element</param>
/// <param name="pos">The Position</param>
internal void OnMouseMoveSelection(FrameworkElement element, Point pos)
{
if (element == null || !(element.Tag is ChartSegment3D))
{
return;
}
var segment = element.Tag as ChartSegment3D;
int currentIndex = -1;
if (this.IsSideBySide || segment.Series is CircularSeriesBase3D)
{
currentIndex = Segments.IndexOf(segment);
}
else
{
this.dataPoint = this.GetDataPoint(pos);
if (this.dataPoint != null)
{
currentIndex = dataPoint.Index;
}
}
bool seriesSelection = this.Area.EnableSeriesSelection &&
(segment.Series.IsSideBySide || segment.Series is ScatterSeries3D ||
segment.Series is CircularSeriesBase3D ||
(!segment.Series.IsSideBySide &&
((!this.Area.EnableSegmentSelection) ||
(this.Area.EnableSegmentSelection && currentIndex == -1))));
if (seriesSelection)
{
int index = this.Area.Series.IndexOf(segment.Series as ChartSeries3D);
if (index > -1)
{
bool isCancel = this.RaiseSelectionChanging(index, this.Area.SeriesSelectedIndex);
if (!isCancel)
{
this.Area.SeriesSelectedIndex = index;
this.Area.PreviousSelectedSeries = this;
}
}
}
else if (this.Area.EnableSegmentSelection)
{
if (currentIndex > -1)
{
bool isCancel = this.RaiseSelectionChanging(currentIndex, this.SelectedIndex);
if (!isCancel)
{
if (this.Area.SelectionStyle == SelectionStyle3D.Single)
{
this.SelectedIndex = currentIndex;
}
else
{
SelectedSegmentsIndexes.Add(currentIndex);
}
this.Area.PreviousSelectedSeries = this;
}
}
}
}
/// <summary>
/// Method used to set SegmentSelectionBrush to SelectedIndex segment
/// </summary>
/// <param name="newIndex"></param>
/// <param name="oldIndex"></param>
protected internal override void SelectedIndexChanged(int newIndex, int oldIndex)
{
ChartSelectionChangedEventArgs chartSelectionChangedEventArgs;
if (ActualArea != null && ActualArea.SelectionBehaviour != null && !ActualArea.GetEnableSeriesSelection())
{
// Reset the old segment
if (ActualArea.SelectionBehaviour.SelectionStyle == SelectionStyle.Single)
{
if (SelectedSegmentsIndexes.Contains(oldIndex))
{
SelectedSegmentsIndexes.Remove(oldIndex);
}
OnResetSegment(oldIndex);
}
if (newIndex >= 0 && ActualArea.GetEnableSegmentSelection())
{
if (!SelectedSegmentsIndexes.Contains(newIndex))
{
SelectedSegmentsIndexes.Add(newIndex);
}
dataPoint = GetDataPoint(newIndex);
if (dataPoint != null && SegmentSelectionBrush != null)
{
// Selects the adornment when the mouse is over or clicked on adornments(adornment selection).
if (adornmentInfo != null && adornmentInfo.HighlightOnSelection)
{
UpdateAdornmentSelection(newIndex);
}
// Generate pixels for the particular data point
if (Segments.Count > 0)
{
if (Segments.Count > 0)
{
GeneratePixels();
}
}
// Set the SegmentSelectionBrush to the selected segment pixels
OnBitmapSelection(selectedSegmentPixels, SegmentSelectionBrush, true);
}
// trigger the SelectionChanged event.
if (ActualArea != null && Segments.Count > 0)
{
chartSelectionChangedEventArgs = new ChartSelectionChangedEventArgs()
{
SelectedSegment = Segments[0],
SelectedSegments = Area.SelectedSegments,
SelectedSeries = this,
SelectedIndex = newIndex,
PreviousSelectedIndex = oldIndex,
NewPointInfo = GetDataPoint(newIndex),
IsSelected = true
};
chartSelectionChangedEventArgs.PreviousSelectedSeries = this.ActualArea.PreviousSelectedSeries;
if (oldIndex != -1)
{
chartSelectionChangedEventArgs.PreviousSelectedSegment = Segments[0];
chartSelectionChangedEventArgs.OldPointInfo = GetDataPoint(oldIndex);
}
(ActualArea as SfChart).OnSelectionChanged(chartSelectionChangedEventArgs);
PreviousSelectedIndex = newIndex;
}
else if (Segments.Count == 0)
{
triggerSelectionChangedEventOnLoad = true;
}
}
else if (newIndex == -1 && ActualArea != null)
{
chartSelectionChangedEventArgs = new ChartSelectionChangedEventArgs()
{
SelectedSegment = null,
SelectedSegments = Area.SelectedSegments,
SelectedSeries = null,
SelectedIndex = newIndex,
PreviousSelectedIndex = oldIndex,
PreviousSelectedSeries = this,
PreviousSelectedSegment = null,
IsSelected = false
};
if (oldIndex != -1)
{
chartSelectionChangedEventArgs.PreviousSelectedSegment = GetDataPoint(oldIndex);
chartSelectionChangedEventArgs.OldPointInfo = GetDataPoint(oldIndex);
}
(ActualArea as SfChart).OnSelectionChanged(chartSelectionChangedEventArgs);
PreviousSelectedIndex = newIndex;
}
}
else if (newIndex >= 0 && Segments.Count == 0)
{
triggerSelectionChangedEventOnLoad = true;
}
}
/// <summary>
/// Method used to set SegmentSelectionBrush to selectedindex chartsegment
/// </summary>
/// <param name="newIndex"/>
/// <param name="oldIndex"/>
protected internal override void SelectedIndexChanged(int newIndex, int oldIndex)
{
CircularSeriesBase circularseries = this as CircularSeriesBase;
bool isGroupTo = circularseries != null && !double.IsNaN(circularseries.GroupTo);
ChartSelectionChangedEventArgs chartSelectionChangedEventArgs;
if (ActualArea != null && ActualArea.SelectionBehaviour != null)
{
ChartSegment selectedSegment = null, oldSegment = null;
// Reset the oldIndex segment Interior
if (ActualArea.SelectionBehaviour.SelectionStyle == SelectionStyle.Single)
{
if (SelectedSegmentsIndexes.Contains(oldIndex))
{
SelectedSegmentsIndexes.Remove(oldIndex);
}
OnResetSegment(oldIndex);
}
if (oldIndex != -1 && oldIndex < ActualData.Count)
{
object oldItem = isGroupTo ? Segments[oldIndex].Item : ActualData[oldIndex];
oldSegment = Segments.Where(segment => segment.Item == oldItem).FirstOrDefault();
}
if (newIndex >= 0 && ActualArea.GetEnableSegmentSelection())
{
if (!SelectedSegmentsIndexes.Contains(newIndex))
{
SelectedSegmentsIndexes.Add(newIndex);
}
if (Segments.Count == 0)
{
triggerSelectionChangedEventOnLoad = true;
return;
}
if (newIndex < Segments.Count || newIndex < ActualData.Count)
{
// For adornment selection implementation
if (adornmentInfo is ChartAdornmentInfo && adornmentInfo.HighlightOnSelection)
{
UpdateAdornmentSelection(newIndex);
}
// Set the SegmentSelectionBrush to newIndex segment Interior
if (this is ISegmentSelectable)
{
object newItem = isGroupTo ? Segments[newIndex].Item : ActualData[newIndex];
selectedSegment = Segments.Where(segment => segment.Item == newItem).FirstOrDefault();
if (selectedSegment != null)
{
if (this.SegmentSelectionBrush != null)
{
selectedSegment.BindProperties();
}
selectedSegment.IsSelectedSegment = true;
}
}
}
if (newIndex < Segments.Count || newIndex < ActualData.Count)
{
chartSelectionChangedEventArgs = new ChartSelectionChangedEventArgs()
{
SelectedSegment = selectedSegment,
SelectedSegments = Area.SelectedSegments,
SelectedSeries = this,
SelectedIndex = newIndex,
PreviousSelectedIndex = oldIndex,
PreviousSelectedSegment = oldSegment,
NewPointInfo = selectedSegment != null ? selectedSegment.Item : null,
OldPointInfo = oldSegment != null ? oldSegment.Item : null,
PreviousSelectedSeries = null,
IsSelected = true
};
if (this.ActualArea.PreviousSelectedSeries != null && oldIndex != -1)
{
chartSelectionChangedEventArgs.PreviousSelectedSeries = this.ActualArea.PreviousSelectedSeries;
}
(ActualArea as SfChart).OnSelectionChanged(chartSelectionChangedEventArgs);
PreviousSelectedIndex = newIndex;
}
}
else if (newIndex == -1)
{
chartSelectionChangedEventArgs = new ChartSelectionChangedEventArgs()
{
SelectedSegment = null,
SelectedSegments = Area.SelectedSegments,
SelectedSeries = null,
SelectedIndex = newIndex,
PreviousSelectedIndex = oldIndex,
PreviousSelectedSegment = oldSegment,
NewPointInfo = null,
OldPointInfo = oldSegment.Item,
PreviousSelectedSeries = this,
IsSelected = false
};
(ActualArea as SfChart).OnSelectionChanged(chartSelectionChangedEventArgs);
PreviousSelectedIndex = newIndex;
}
}
}
