internal void UpdateVisual()
{
bool isMultiColor = fastBarSeries.Palette != ChartColorPalette.None && fastBarSeries.Interior == null;
float x1 = 0, x2, y1, y2, diff = 0;
Color color;
SfChart chart = fastBarSeries.Area;
isSeriesSelected = false;
Color segmentColor = GetColor(this.Interior);
//Set SeriesSelectionBrush and Check EnableSeriesSelection
if (chart.GetEnableSeriesSelection())
{
Brush seriesSelectionBrush = chart.GetSeriesSelectionBrush(fastBarSeries);
if (seriesSelectionBrush != null &&
chart.SelectedSeriesCollection.Contains(fastBarSeries))
{
isSeriesSelected = true;
seriesSelectionColor = ((SolidColorBrush)seriesSelectionBrush).Color;
}
}
else if (chart.GetEnableSegmentSelection())//Set SegmentSelectionBrush and Check EnableSegmentSelection
{
Brush segmentSelectionBrush = (fastBarSeries as ISegmentSelectable).SegmentSelectionBrush;
if (segmentSelectionBrush != null)
{
segmentSelectionColor = ((SolidColorBrush)segmentSelectionBrush).Color;
}
}
int dataCount = x1Values.Count;
if (bitmap != null && x1Values.Count != 0)
{
fastBuffer = chart.GetFastBuffer();
double width = (int)chart.SeriesClipRect.Width;
double height = (int)chart.SeriesClipRect.Height;
for (int i = 0; i < dataCount; i++)
{
if (isSeriesSelected)
{
color = seriesSelectionColor;
}
else if (fastBarSeries.SelectedSegmentsIndexes.Contains(startIndex) && (fastBarSeries as ISegmentSelectable).SegmentSelectionBrush != null)
{
color = segmentSelectionColor;
}
else if (fastBarSeries.SegmentColorPath != null && fastBarSeries.Interior == null)
{
if (fastBarSeries.ColorValues.Count > 0 && fastBarSeries.ColorValues[startIndex] != null)
{
color = GetColor(fastBarSeries.ColorValues[startIndex]);
}
else if (fastBarSeries.Palette == ChartColorPalette.None)
{
int serIndex = fastBarSeries.ActualArea.GetSeriesIndex(this.Series);
color = GetColor(fastBarSeries.ActualArea.ColorModel.GetBrush(serIndex));
}
else
{
Brush brush = fastBarSeries.ColorModel.GetBrush(startIndex);
color = GetColor(brush);
}
}
else if (isMultiColor)
{
Brush brush = fastBarSeries.ColorModel.GetBrush(startIndex);
color = GetColor(brush);
}
else
{
color = segmentColor;
}
startIndex++;
x1 = x1Values[i];
x2 = x2Values[i];
y1 = y1ChartVals[i] > 0 ? y1Values[i] : y2Values[i];
y2 = y1ChartVals[i] > 0 ? y2Values[i] : y1Values[i];
double spacing = (fastBarSeries as ISegmentSpacing).SegmentSpacing;
if (spacing > 0 && spacing <= 1)
{
double leftpos = (Series as ISegmentSpacing).CalculateSegmentSpacing(spacing, x1, x2);
double rightpos = (Series as ISegmentSpacing).CalculateSegmentSpacing(spacing, x2, x1);
x2 = (float)leftpos;
x1 = (float)rightpos;
}
diff = x2 - x1;
if (y1 < y2)
{
bitmap.FillRectangle(fastBuffer, (int)width, (int)height, (int)(width - y2), (int)(height - x1 - diff),
(int)(width - y1), (int)(height - x1), color, fastBarSeries.bitmapPixels);
Series.bitmapRects.Add(new Rect(new Point((width - y2), (height - x1 - diff)),
new Point((width - y1), (height - x1))));
}
else
{
bitmap.FillRectangle(fastBuffer, (int)width, (int)height, (int)(width - y1), (int)(height - x1 - diff),
(int)(width - y2), (int)(height - x1), color, fastBarSeries.bitmapPixels);
Series.bitmapRects.Add(new Rect(new Point((width - y1), (height - x1 - diff)),
new Point((width - y2), (height - x1))));
}
}
}
chart.CanRenderToBuffer = true;
x1Values.Clear();
x2Values.Clear();
y1Values.Clear();
y2Values.Clear();
}