internal void Paint(ChartGraphics chartGraph, bool drawAnnotationOnly)
{
ChartPicture chartPicture = this.Chart.chartPicture;
// Restore previous background using double buffered bitmap
if (!chartPicture.isSelectionMode &&
this.Count > 0 /*&&
* !this.Chart.chartPicture.isPrinting*/)
{
chartPicture.backgroundRestored = true;
Rectangle chartPosition = new Rectangle(0, 0, chartPicture.Width, chartPicture.Height);
if (chartPicture.nonTopLevelChartBuffer == null || !drawAnnotationOnly)
{
// Dispose previous bitmap
if (chartPicture.nonTopLevelChartBuffer != null)
{
chartPicture.nonTopLevelChartBuffer.Dispose();
chartPicture.nonTopLevelChartBuffer = null;
}
// Copy chart area plotting rectangle from the chart's dubble buffer image into area dubble buffer image
if (this.Chart.paintBufferBitmap != null &&
this.Chart.paintBufferBitmap.Size.Width >= chartPosition.Size.Width &&
this.Chart.paintBufferBitmap.Size.Height >= chartPosition.Size.Height)
{
chartPicture.nonTopLevelChartBuffer = this.Chart.paintBufferBitmap.Clone(
chartPosition, this.Chart.paintBufferBitmap.PixelFormat);
}
}
else if (drawAnnotationOnly && chartPicture.nonTopLevelChartBuffer != null)
{
// Restore previous background
this.Chart.paintBufferBitmapGraphics.DrawImageUnscaled(
chartPicture.nonTopLevelChartBuffer,
chartPosition);
}
}
// Draw all annotation objects
foreach (Annotation annotation in this)
{
// Reset calculated relative position
annotation.ResetCurrentRelativePosition();
if (annotation.IsVisible())
{
bool resetClip = false;
// Check if anchor point assosiated with plot area is inside the scaleView
if (annotation.IsAnchorVisible())
{
// Set annotation object clipping
if (annotation.ClipToChartArea.Length > 0 &&
annotation.ClipToChartArea != Constants.NotSetValue &&
Chart != null)
{
int areaIndex = Chart.ChartAreas.IndexOf(annotation.ClipToChartArea);
if (areaIndex >= 0)
{
// Get chart area object
ChartArea chartArea = Chart.ChartAreas[areaIndex];
chartGraph.SetClip(chartArea.PlotAreaPosition.ToRectangleF());
resetClip = true;
}
}
// Start Svg Selection mode
string url = String.Empty;
chartGraph.StartHotRegion(
annotation.ReplaceKeywords(url),
annotation.ReplaceKeywords(annotation.ToolTip));
// Draw annotation object
annotation.Paint(Chart, chartGraph);
// End Svg Selection mode
chartGraph.EndHotRegion( );
// Reset clipping region
if (resetClip)
{
chartGraph.ResetClip();
}
}
}
}
}
/// <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);
}