/// <summary>
/// Check if any series is indexed. IsXValueIndexed flag is set or all X values are zeros.
/// </summary>
/// <param name="common">Reference to common chart classes.</param>
/// <param name="series">Data series names.</param>
/// <returns>True if any series is indexed.</returns>
static internal bool IndexedSeries(CommonElements common, params string[] series)
{
// Data series loop
bool zeroXValues = true;
foreach (string ser in series)
{
Series localSeries = common.DataManager.Series[ser];
// Check series indexed flag
if (localSeries.IsXValueIndexed)
{
// If flag set in at least one series - all series are indexed
return(true);
}
// Check if series has all X values set to zero
if (zeroXValues && !IndexedSeries(localSeries))
{
zeroXValues = false;
}
}
return(zeroXValues);
}
/// <summary>
/// Overrides the ConvertFrom method of TypeConverter.
/// </summary>
/// <param name="context">Descriptor context.</param>
/// <param name="culture">Culture information.</param>
/// <param name="value">Value to convert from.</param>
/// <returns>Converted object.</returns>
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
object result = null;
bool convertFromDate = false;
// Try to check if value type is date
if (context != null && context.Instance != null)
{
DataPoint dataPoint = (DataPoint)context.Instance;
if (dataPoint.series != null && dataPoint.series.IsYValueDateTime())
{
convertFromDate = true;
}
}
// Can convert from string where each array element is separated by comma
string stringValue = value as string;
if (stringValue != null)
{
string[] values = stringValue.Split(new char[] { ',' });
double[] array = new double[values.Length];
for (int index = 0; index < values.Length; index++)
{
// Try to convert from date-time string format
if (convertFromDate)
{
DateTime valueAsDate;
if (DateTime.TryParse(values[index], CultureInfo.InvariantCulture, DateTimeStyles.None, out valueAsDate))
{
result = valueAsDate;
}
else if (DateTime.TryParse(values[index], CultureInfo.CurrentCulture, DateTimeStyles.None, out valueAsDate))
{
result = valueAsDate;
}
else
{
result = null;
}
}
// Save converted value in the array
if (result != null)
{
array[index] = (double)result;
}
else
{
array[index] = CommonElements.ParseDouble(values[index]);
}
}
return(array);
}
// Call base class
return(base.ConvertFrom(context, culture, value));
}
/// <summary>
/// Check if all data points in many series have X value set to 0.
/// </summary>
/// <param name="common">Reference to common chart classes.</param>
/// <param name="series">Data series.</param>
/// <returns>True if all data points have value 0.</returns>
static internal bool SeriesXValuesZeros(CommonElements common, params string[] series)
{
// Data series loop
foreach (string ser in series)
{
// Check one series X values
if (!SeriesXValuesZeros(common.DataManager.Series[ser]))
{
return(false);
}
}
return(true);
}
/// <summary>
/// Draw strip(s) or line(s).
/// </summary>
/// <param name="graph">Reference to the Chart Graphics object.</param>
/// <param name="common">Common objects.</param>
/// <param name="drawLinesOnly">Indicates if Lines or Stripes should be drawn.</param>
internal void Paint(
ChartGraphics graph,
CommonElements common,
bool drawLinesOnly)
{
// Strip lines are not supported in circular chart area
if (this.Axis.ChartArea.chartAreaIsCurcular)
{
return;
}
// Get plot area position
RectangleF plotAreaPosition = this.Axis.ChartArea.PlotAreaPosition.ToRectangleF();
// Detect if strip/line is horizontal or vertical
bool horizontal = true;
if (this.Axis.AxisPosition == AxisPosition.Bottom || this.Axis.AxisPosition == AxisPosition.Top)
{
horizontal = false;
}
// Get first series attached to this axis
Series axisSeries = null;
if (Axis.axisType == AxisName.X || Axis.axisType == AxisName.X2)
{
List <string> seriesArray = Axis.ChartArea.GetXAxesSeries((Axis.axisType == AxisName.X) ? AxisType.Primary : AxisType.Secondary, Axis.SubAxisName);
if (seriesArray.Count > 0)
{
axisSeries = Axis.Common.DataManager.Series[seriesArray[0]];
if (axisSeries != null && !axisSeries.IsXValueIndexed)
{
axisSeries = null;
}
}
}
// Get starting position from axis
// NOTE: Starting position was changed from "this.Axis.minimum" to
// fix the minimum scaleView location to fix issue #5962 -- AG
double currentPosition = this.Axis.ViewMinimum;
// Adjust start position depending on the interval type
if (!Axis.ChartArea.chartAreaIsCurcular ||
Axis.axisType == AxisName.Y ||
Axis.axisType == AxisName.Y2)
{
double intervalToUse = this.Interval;
// NOTE: fix for issue #5962
// Always use original grid interval for isInterlaced strip lines.
if (this.interlaced)
{
// Automaticly generated isInterlaced strips have interval twice as big as major grids
intervalToUse /= 2.0;
}
currentPosition = ChartHelper.AlignIntervalStart(currentPosition, intervalToUse, this.IntervalType, axisSeries);
}
// Too many tick marks
if (this.Interval != 0)
{
if ((Axis.ViewMaximum - Axis.ViewMinimum) / ChartHelper.GetIntervalSize(currentPosition, this._interval, this._intervalType, axisSeries, 0, DateTimeIntervalType.Number, false) > ChartHelper.MaxNumOfGridlines)
{
return;
}
}
DateTimeIntervalType offsetType = (IntervalOffsetType == DateTimeIntervalType.Auto) ? IntervalType : IntervalOffsetType;
if (this.Interval == 0)
{
currentPosition = this.IntervalOffset;
}
/******************************************************************
* Removed by AG. Causing issues with interalced strip lines.
* /******************************************************************
* else if(axisSeries != null && axisSeries.IsXValueIndexed)
* {
* // Align first position for indexed series
* currentPosition += this.Axis.AlignIndexedIntervalStart(
* currentPosition,
* this.Interval,
* this.IntervalType,
* axisSeries,
* this.IntervalOffset,
* offsetType,
* false);
* }
*/
else
{
if (this.IntervalOffset > 0)
{
currentPosition += ChartHelper.GetIntervalSize(currentPosition, this.IntervalOffset,
offsetType, axisSeries, 0, DateTimeIntervalType.Number, false);
}
else if (this.IntervalOffset < 0)
{
currentPosition -= ChartHelper.GetIntervalSize(currentPosition, -this.IntervalOffset,
offsetType, axisSeries, 0, DateTimeIntervalType.Number, false);
}
}
// Draw several lines or strips if Interval property is set
int counter = 0;
do
{
// Check if we do not exceed max number of elements
if (counter++ > ChartHelper.MaxNumOfGridlines)
{
break;
}
// Draw strip
if (this.StripWidth > 0 && !drawLinesOnly)
{
double stripRightPosition = currentPosition + ChartHelper.GetIntervalSize(currentPosition, this.StripWidth, this.StripWidthType, axisSeries, this.IntervalOffset, offsetType, false);
if (stripRightPosition > this.Axis.ViewMinimum && currentPosition < this.Axis.ViewMaximum)
{
// Calculate strip rectangle
RectangleF rect = RectangleF.Empty;
double pos1 = (float)this.Axis.GetLinearPosition(currentPosition);
double pos2 = (float)this.Axis.GetLinearPosition(stripRightPosition);
if (horizontal)
{
rect.X = plotAreaPosition.X;
rect.Width = plotAreaPosition.Width;
rect.Y = (float)Math.Min(pos1, pos2);
rect.Height = (float)Math.Max(pos1, pos2) - rect.Y;
// Check rectangle boundaries
rect.Intersect(plotAreaPosition);
}
else
{
rect.Y = plotAreaPosition.Y;
rect.Height = plotAreaPosition.Height;
rect.X = (float)Math.Min(pos1, pos2);
rect.Width = (float)Math.Max(pos1, pos2) - rect.X;
// Check rectangle boundaries
rect.Intersect(plotAreaPosition);
}
if (rect.Width > 0 && rect.Height > 0)
{
// Start Svg Selection mode
graph.StartHotRegion("", this._toolTip);
if (!this.Axis.ChartArea.Area3DStyle.Enable3D)
{
// Draw strip
graph.FillRectangleRel(rect,
this.BackColor, this.BackHatchStyle, this.BackImage,
this.BackImageWrapMode, this.BackImageTransparentColor, this.BackImageAlignment,
this.BackGradientStyle, this.BackSecondaryColor, this.BorderColor,
this.BorderWidth, this.BorderDashStyle, Color.Empty,
0, PenAlignment.Inset);
}
else
{
Draw3DStrip(graph, rect, horizontal);
}
// End Svg Selection mode
graph.EndHotRegion();
// Draw strip line title
PaintTitle(graph, rect);
if (common.ProcessModeRegions)
{
if (!this.Axis.ChartArea.Area3DStyle.Enable3D)
{
common.HotRegionsList.AddHotRegion(rect, this.ToolTip, string.Empty, string.Empty, string.Empty, this, ChartElementType.StripLines, null);
}
}
}
}
}
// Draw line
else if (this.StripWidth == 0 && drawLinesOnly)
{
if (currentPosition > this.Axis.ViewMinimum && currentPosition < this.Axis.ViewMaximum)
{
// Calculate line position
PointF point1 = PointF.Empty;
PointF point2 = PointF.Empty;
if (horizontal)
{
point1.X = plotAreaPosition.X;
point1.Y = (float)this.Axis.GetLinearPosition(currentPosition);
point2.X = plotAreaPosition.Right;
point2.Y = point1.Y;
}
else
{
point1.X = (float)this.Axis.GetLinearPosition(currentPosition);
point1.Y = plotAreaPosition.Y;
point2.X = point1.X;
point2.Y = plotAreaPosition.Bottom;
}
// Start Svg Selection mode
graph.StartHotRegion("", this._toolTip);
// Draw Line
if (!this.Axis.ChartArea.Area3DStyle.Enable3D)
{
graph.DrawLineRel(this.BorderColor, this.BorderWidth, this.BorderDashStyle, point1, point2);
}
else
{
graph.Draw3DGridLine(this.Axis.ChartArea, _borderColor, _borderWidth, _borderDashStyle, point1, point2, horizontal, Axis.Common, this);
}
// End Svg Selection mode
graph.EndHotRegion();
// Draw strip line title
PaintTitle(graph, point1, point2);
if (common.ProcessModeRegions)
{
SizeF relBorderWidth = new SizeF(this.BorderWidth + 1, this.BorderWidth + 1);
relBorderWidth = graph.GetRelativeSize(relBorderWidth);
RectangleF lineRect = RectangleF.Empty;
if (horizontal)
{
lineRect.X = point1.X;
lineRect.Y = point1.Y - relBorderWidth.Height / 2f;
lineRect.Width = point2.X - point1.X;
lineRect.Height = relBorderWidth.Height;
}
else
{
lineRect.X = point1.X - relBorderWidth.Width / 2f;
lineRect.Y = point1.Y;
lineRect.Width = relBorderWidth.Width;
lineRect.Height = point2.Y - point1.Y;
}
common.HotRegionsList.AddHotRegion(lineRect, this.ToolTip, null, null, null, this, ChartElementType.StripLines, null);
}
}
}
// Go to the next line/strip
if (this.Interval > 0)
{
currentPosition += ChartHelper.GetIntervalSize(currentPosition, this.Interval, this.IntervalType, axisSeries, this.IntervalOffset, offsetType, false);
}
} while(this.Interval > 0 && currentPosition <= this.Axis.ViewMaximum);
}