protected internal virtual void AlignDefaultLabel(
ChartAlignment verticalAlignemnt,
ChartAlignment horizontalAlignment,
double x,
double y,
ContentControl control)
{
}
internal void AlignAxisToolTipPolygon(
ContentControl control,
ChartAlignment verticalAlignemnt,
ChartAlignment horizontalAlignment,
double x,
double y,
ChartBehavior behavior)
{
double labelHeight = control.DesiredSize.Height;
double labelWidth = control.DesiredSize.Width;
double axisTipHypotenuse = (2 * axisTipHeight) / Math.Sqrt(3);
var isChartTrackBallBehavior = behavior is ChartTrackBallBehavior;
PointCollection polygonPoints = new PointCollection();
polygonPoints.Add(new Point(0, 0));
polygonPoints.Add(new Point(0, labelHeight));
polygonPoints.Add(new Point(labelWidth, labelHeight));
if (chartAxis.Orientation == Orientation.Horizontal)
{
polygonPoints.Add(new Point(labelWidth, 0));
if (chartAxis.OpposedPosition)
{
double tipPosition, leftTipWidth, rightTipWidth;
if ((control.Content as ChartPointInfo).Axis.CrosshairLabelTemplate == null && !isChartTrackBallBehavior)
{
control.Margin = new Thickness(0, -6, 0, 0);
}
if (((control.Content as ChartPointInfo).X - control.DesiredSize.Height <= ChartArea.SeriesClipRect.X))
{
if (isChartTrackBallBehavior)
{
AlignDefaultLabel(
ChartAlignment.Far,
ChartAlignment.Far,
ChartArea.SeriesClipRect.X,
(control.Content as ChartPointInfo).Y,
control);
}
else
{
AlignDefaultLabel(
verticalAlignemnt,
ChartAlignment.Far,
ChartArea.SeriesClipRect.X,
(control.Content as ChartPointInfo).Y,
control);
}
tipPosition = (control.Content as ChartPointInfo).BaseX - ChartArea.SeriesClipRect.X;
leftTipWidth = tipPosition - axisTipHypotenuse / 2;
rightTipWidth = tipPosition + axisTipHypotenuse / 2;
if (leftTipWidth < 0)
{
leftTipWidth = 0;
}
polygonPoints.Insert(2, (new Point(leftTipWidth, labelHeight)));
polygonPoints.Insert(3, (new Point(tipPosition, labelHeight + axisTipHeight)));
polygonPoints.Insert(4, (new Point(rightTipWidth, labelHeight)));
}
else if ((control.Content as ChartPointInfo).X + control.DesiredSize.Width
>= ChartArea.SeriesClipRect.X + ChartArea.SeriesClipRect.Width)
{
if (isChartTrackBallBehavior)
{
AlignDefaultLabel(
ChartAlignment.Far,
ChartAlignment.Near,
ChartArea.SeriesClipRect.X + ChartArea.SeriesClipRect.Width,
(control.Content as ChartPointInfo).Y,
control);
}
else
{
AlignDefaultLabel(
verticalAlignemnt,
ChartAlignment.Near,
ChartArea.SeriesClipRect.X + ChartArea.SeriesClipRect.Width,
(control.Content as ChartPointInfo).Y,
control);
}
tipPosition = (control.Content as ChartPointInfo).BaseX - (control.Content as ChartPointInfo).X;
leftTipWidth = tipPosition - axisTipHypotenuse / 2;
rightTipWidth = tipPosition + axisTipHypotenuse / 2;
if (rightTipWidth > control.DesiredSize.Width)
{
rightTipWidth = control.DesiredSize.Width;
}
if (leftTipWidth < 0)
{
leftTipWidth = 0;
}
polygonPoints.Insert(2, (new Point(leftTipWidth, labelHeight)));
polygonPoints.Insert(3, (new Point(tipPosition, labelHeight + axisTipHeight)));
polygonPoints.Insert(4, (new Point(rightTipWidth, labelHeight)));
}
else
{
AlignDefaultLabel(verticalAlignemnt, horizontalAlignment, x, y, control);
polygonPoints.Insert(2, new Point(labelWidth / 2 - axisTipHypotenuse / 2, labelHeight));
polygonPoints.Insert(3, new Point(labelWidth / 2, labelHeight + axisTipHeight));
polygonPoints.Insert(4, new Point(labelWidth / 2 + axisTipHypotenuse / 2, labelHeight));
}
}
else
{
double tipPosition, leftTipWidth, rightTipWidth;
if ((control.Content as ChartPointInfo).Axis.CrosshairLabelTemplate == null && !isChartTrackBallBehavior)
{
control.Margin = new Thickness(0, 6, 0, 0);
}
if (((control.Content as ChartPointInfo).X - control.DesiredSize.Height <= ChartArea.SeriesClipRect.X))
{
AlignDefaultLabel(
ChartAlignment.Far,
ChartAlignment.Far,
ChartArea.SeriesClipRect.X,
(control.Content as ChartPointInfo).Y,
control);
tipPosition = (control.Content as ChartPointInfo).BaseX - ChartArea.SeriesClipRect.X;
leftTipWidth = tipPosition - axisTipHypotenuse / 2;
rightTipWidth = tipPosition + axisTipHypotenuse / 2;
if (leftTipWidth < 0)
{
leftTipWidth = 0;
}
polygonPoints.Insert(4, (new Point(rightTipWidth, 0)));
polygonPoints.Insert(5, (new Point(tipPosition, -axisTipHeight)));
polygonPoints.Insert(6, (new Point(leftTipWidth, 0)));
}
else if ((control.Content as ChartPointInfo).X + control.DesiredSize.Width
>= ChartArea.SeriesClipRect.X + ChartArea.SeriesClipRect.Width)
{
AlignDefaultLabel(
ChartAlignment.Far,
ChartAlignment.Near,
ChartArea.SeriesClipRect.X + ChartArea.SeriesClipRect.Width,
(control.Content as ChartPointInfo).Y,
control);
tipPosition = ((control.Content as ChartPointInfo).BaseX - (control.Content as ChartPointInfo).X);
leftTipWidth = tipPosition - axisTipHypotenuse / 2;
rightTipWidth = tipPosition + axisTipHypotenuse / 2;
if (rightTipWidth > control.DesiredSize.Width)
{
rightTipWidth = control.DesiredSize.Width;
}
if (leftTipWidth < 0)
{
leftTipWidth = 0;
}
polygonPoints.Insert(4, new Point(rightTipWidth, 0));
polygonPoints.Insert(5, new Point(tipPosition, -axisTipHeight));
polygonPoints.Insert(6, new Point(leftTipWidth, 0));
}
else
{
AlignDefaultLabel(verticalAlignemnt, horizontalAlignment, x, y, control);
polygonPoints.Insert(4, new Point(labelWidth / 2 + axisTipHypotenuse / 2, 0));
polygonPoints.Insert(5, new Point(labelWidth / 2, -axisTipHeight));
polygonPoints.Insert(6, new Point(labelWidth / 2 - axisTipHypotenuse / 2, 0));
}
}
polygonPoints.Add(new Point(0, 0));
(control.Content as ChartPointInfo).PolygonPoints = polygonPoints;
}
else
{
if (chartAxis.OpposedPosition)
{
if ((control.Content as ChartPointInfo).Axis.CrosshairLabelTemplate == null && !isChartTrackBallBehavior)
{
control.Margin = new Thickness(6, 0, 0, 0);
}
if (((control.Content as ChartPointInfo).Y - control.DesiredSize.Height <= ChartArea.SeriesClipRect.Y))
{
if (isChartTrackBallBehavior)
{
AlignDefaultLabel(
ChartAlignment.Far,
ChartAlignment.Far,
(control.Content as ChartPointInfo).X,
ChartArea.SeriesClipRect.Y,
control);
}
else
{
AlignDefaultLabel(
ChartAlignment.Far,
horizontalAlignment,
(control.Content as ChartPointInfo).X,
ChartArea.SeriesClipRect.Y,
control);
}
double tipPosition = (control.Content as ChartPointInfo).BaseY - ChartArea.SeriesClipRect.Y;
double lefttipWidth = tipPosition - axisTipHypotenuse / 2;
double righttipWidth = tipPosition + axisTipHypotenuse / 2;
if (lefttipWidth < 0)
{
lefttipWidth = 0;
}
if (righttipWidth > labelHeight)
{
righttipWidth = labelHeight;
}
polygonPoints.Insert(1, new Point(0, lefttipWidth));
polygonPoints.Insert(2, new Point(-axisTipHeight, tipPosition));
polygonPoints.Insert(3, new Point(0, righttipWidth));
}
else if ((control.Content as ChartPointInfo).Y + control.DesiredSize.Height
>= ChartArea.SeriesClipRect.Y + ChartArea.SeriesClipRect.Height)
{
if (isChartTrackBallBehavior)
{
AlignDefaultLabel(
ChartAlignment.Near,
ChartAlignment.Far,
(control.Content as ChartPointInfo).X,
ChartArea.SeriesClipRect.Y + ChartArea.SeriesClipRect.Height,
control);
}
else
{
AlignDefaultLabel(
ChartAlignment.Near,
horizontalAlignment,
(control.Content as ChartPointInfo).X,
ChartArea.SeriesClipRect.Y + ChartArea.SeriesClipRect.Height,
control);
}
double tipPosition = (control.Content as ChartPointInfo).BaseY - (control.Content as ChartPointInfo).Y;
double lefttipWidth = tipPosition - axisTipHypotenuse / 2;
double righttipWidth = tipPosition + axisTipHypotenuse / 2;
if (righttipWidth > control.DesiredSize.Height)
{
righttipWidth = control.DesiredSize.Height;
}
if (lefttipWidth < 0)
{
lefttipWidth = 0;
}
polygonPoints.Insert(1, new Point(0, lefttipWidth));
polygonPoints.Insert(2, new Point(-axisTipHeight, tipPosition));
polygonPoints.Insert(3, new Point(0, righttipWidth));
}
else
{
if (!isChartTrackBallBehavior)
{
AlignDefaultLabel(verticalAlignemnt, horizontalAlignment, x, y, control);
}
polygonPoints.Insert(1, new Point(0, labelHeight / 3));
polygonPoints.Insert(2, new Point(-axisTipHeight, labelHeight / 2));
polygonPoints.Insert(3, new Point(0, labelHeight / 1.5));
}
}
else
{
if ((control.Content as ChartPointInfo).Axis.CrosshairLabelTemplate == null && !isChartTrackBallBehavior)
{
control.Margin = new Thickness(-6, 0, 0, 0);
}
if (((control.Content as ChartPointInfo).Y - control.DesiredSize.Height <= ChartArea.SeriesClipRect.Y))
{
if (isChartTrackBallBehavior)
{
AlignDefaultLabel(
ChartAlignment.Far,
ChartAlignment.Far,
(control.Content as ChartPointInfo).X,
ChartArea.SeriesClipRect.Y,
control);
}
else
{
AlignDefaultLabel(
ChartAlignment.Far,
horizontalAlignment,
(control.Content as ChartPointInfo).X,
ChartArea.SeriesClipRect.Y,
control);
}
double tipPosition = (control.Content as ChartPointInfo).BaseY - ChartArea.SeriesClipRect.Y;
double lefttipWidth = tipPosition - axisTipHypotenuse / 2;
double righttipWidth = tipPosition + axisTipHypotenuse / 2;
if (lefttipWidth < 0)
{
lefttipWidth = 0;
}
if (righttipWidth > labelHeight)
{
righttipWidth = labelHeight;
}
polygonPoints.Insert(3, new Point(labelWidth, righttipWidth));
polygonPoints.Insert(4, new Point(labelWidth + axisTipHeight, tipPosition));
polygonPoints.Insert(5, new Point(labelWidth, lefttipWidth));
}
else if ((control.Content as ChartPointInfo).Y + control.DesiredSize.Height
>= ChartArea.SeriesClipRect.Y + ChartArea.SeriesClipRect.Height)
{
if (isChartTrackBallBehavior)
{
AlignDefaultLabel(
ChartAlignment.Near,
ChartAlignment.Far,
(control.Content as ChartPointInfo).X,
ChartArea.SeriesClipRect.Y + ChartArea.SeriesClipRect.Height,
control);
}
else
{
AlignDefaultLabel(
ChartAlignment.Near,
horizontalAlignment,
(control.Content as ChartPointInfo).X,
ChartArea.SeriesClipRect.Y + ChartArea.SeriesClipRect.Height,
control);
}
double tipPosition = (control.Content as ChartPointInfo).BaseY - (control.Content as ChartPointInfo).Y;
double lefttipWidth = tipPosition - axisTipHypotenuse / 2;
double righttipWidth = tipPosition + axisTipHypotenuse / 2;
if (lefttipWidth < 0)
{
lefttipWidth = 0;
}
if (righttipWidth > control.DesiredSize.Height)
{
righttipWidth = control.DesiredSize.Height;
}
polygonPoints.Add(new Point(labelWidth, righttipWidth));
polygonPoints.Add(new Point(labelWidth + axisTipHeight, tipPosition));
polygonPoints.Add(new Point(labelWidth, lefttipWidth));
}
else
{
if (!isChartTrackBallBehavior)
{
AlignDefaultLabel(verticalAlignemnt, horizontalAlignment, x, y, control);
}
polygonPoints.Add(new Point(labelWidth, labelHeight / 1.5));
polygonPoints.Add(new Point(labelWidth + axisTipHeight, labelHeight / 2));
polygonPoints.Add(new Point(labelWidth, labelHeight / 3));
}
}
polygonPoints.Add(new Point(labelWidth, 0));
polygonPoints.Add(new Point(0, 0));
(control.Content as ChartPointInfo).PolygonPoints = polygonPoints;
}
}