/// <summary>
/// Add Title visual to DrawingArea
/// </summary>
/// <param name="chart">Chart</param>
/// <param name="title">Title to add</param>
/// <param name="panel">Panel where title to be added</param>
/// <param name="width">Available width for title</param>
/// <param name="height">Available height for title</param>
private void AddTitle(Chart chart, Title title, Panel panel, Double width, Double height)
{
Double tempFontSize = title.InternalFontSize;
title.Chart = chart;
RECREATE_TITLE:
title.CreateVisualObject(new ElementData() { Element = title });
Size size = Graphics.CalculateVisualSize(title.Visual);
if (title.InternalVerticalAlignment == VerticalAlignment.Top || title.InternalVerticalAlignment == VerticalAlignment.Bottom
|| (title.InternalVerticalAlignment == VerticalAlignment.Center && title.InternalHorizontalAlignment == HorizontalAlignment.Center))
{
if (size.Width > width && (chart.ActualWidth - width) < width)
{
if (title.InternalFontSize == 1)
goto OUT;
title.IsNotificationEnable = false;
title.InternalFontSize -= 1;
title.IsNotificationEnable = true;
goto RECREATE_TITLE;
}
}
else
{
if (size.Height >= height || title.Height >= height)
{
if (title.InternalFontSize == 1)
goto OUT;
title.IsNotificationEnable = false;
title.InternalFontSize -= 1;
title.IsNotificationEnable = true;
goto RECREATE_TITLE;
}
}
OUT:
title.IsNotificationEnable = false;
title.InternalFontSize = tempFontSize;
title.IsNotificationEnable = true;
// Add title Visual as children of panel
panel.Children.Add(title.Visual);
}
/// <summary>
/// Returns label for DataPoint
/// </summary>
/// <param name="dataPoint"></param>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="isPositive"></param>
/// <param name="markerLeft"></param>
/// <param name="markerTop"></param>
/// <param name="labelCanvas"></param>
/// <param name="IsSetPosition">Whether to set the position while creating it (in this function itself) </param>
/// <returns>New position of the label</returns>
private static Point CreateLabel4LineDataPoint(DataPoint dataPoint, Double width, Double height, Boolean isPositive,
Double markerLeft, Double markerTop, ref Canvas labelCanvas, Boolean IsSetPosition)
{
Point retVal = new Point();
if (dataPoint.LabelVisual != null)
{
Panel parent = dataPoint.LabelVisual.Parent as Panel;
if (parent != null)
parent.Children.Remove(dataPoint.LabelVisual);
}
Chart chart = dataPoint.Chart as Chart;
if (dataPoint.Faces == null || Double.IsNaN(dataPoint.InternalYValue))
return retVal;
if ((Boolean)dataPoint.LabelEnabled && !String.IsNullOrEmpty(dataPoint.LabelText))
{
LabelStyles autoLabelStyle = (LabelStyles)dataPoint.LabelStyle;
Title tb = new Title()
{
Text = dataPoint.TextParser(dataPoint.LabelText),
InternalFontFamily = dataPoint.LabelFontFamily,
InternalFontSize = dataPoint.LabelFontSize.Value,
InternalFontWeight = (FontWeight)dataPoint.LabelFontWeight,
InternalFontStyle = (FontStyle)dataPoint.LabelFontStyle,
InternalBackground = dataPoint.LabelBackground,
InternalFontColor = Chart.CalculateDataPointLabelFontColor(dataPoint.Chart as Chart, dataPoint, dataPoint.LabelFontColor, autoLabelStyle),
Padding = new Thickness(0.1, 0.1, 0.1, 0.1),
Tag = new ElementData() { Element = dataPoint }
};
tb.CreateVisualObject(new ElementData() { Element = dataPoint });
Double labelLeft = 0;
Double labelTop = 0;
Double gap = 6;
if (Double.IsNaN(dataPoint.LabelAngle) || dataPoint.LabelAngle == 0)
{
SetLabelPosition4LineDataPoint(dataPoint, width, height, isPositive, markerLeft, markerTop, ref labelLeft, ref labelTop, gap, new Size(tb.TextBlockDesiredSize.Width, tb.TextBlockDesiredSize.Height));
retVal.X = labelLeft;
retVal.Y = labelTop;
if (IsSetPosition)
{
tb.Visual.SetValue(Canvas.LeftProperty, labelLeft);
tb.Visual.SetValue(Canvas.TopProperty, labelTop);
}
Double depth3D = chart.ChartArea.PLANK_DEPTH / chart.PlotDetails.Layer3DCount * (chart.View3D ? 1 : 0);
if (!dataPoint.IsLabelStyleSet && !dataPoint.Parent.IsLabelStyleSet)
{
if (isPositive)
{
if (labelTop < -depth3D)
autoLabelStyle = LabelStyles.Inside;
}
else
{
if (labelTop + tb.TextBlockDesiredSize.Height > chart.PlotArea.BorderElement.Height - depth3D + chart.ChartArea.PLANK_THICKNESS)
autoLabelStyle = LabelStyles.Inside;
}
}
if (autoLabelStyle != dataPoint.LabelStyle)
{
SetLabelPosition4LineDataPoint(dataPoint, width, height, isPositive, markerLeft, markerTop, ref labelLeft, ref labelTop, gap, new Size(tb.TextBlockDesiredSize.Width, tb.TextBlockDesiredSize.Height));
retVal.X = labelLeft;
retVal.Y = labelTop;
if (IsSetPosition)
{
tb.Visual.SetValue(Canvas.LeftProperty, labelLeft);
tb.Visual.SetValue(Canvas.TopProperty, labelTop);
}
}
}
else
{
if (isPositive)
{
Point centerOfRotation = new Point(markerLeft,
markerTop - tb.TextBlockDesiredSize.Height / 2);
Double radius = dataPoint.Marker.MarkerSize.Height / 2 * dataPoint.Marker.ScaleFactor;
Double angle = 0;
Double angleInRadian = 0;
if (autoLabelStyle == LabelStyles.OutSide)
{
if (dataPoint.LabelAngle > 0 && dataPoint.LabelAngle <= 90)
{
angle = dataPoint.LabelAngle - 180;
angleInRadian = (Math.PI / 180) * angle;
radius += tb.TextBlockDesiredSize.Width;
angle = (angleInRadian - Math.PI) * (180 / Math.PI);
ColumnChart.SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
else if (dataPoint.LabelAngle >= -90 && dataPoint.LabelAngle < 0)
{
angle = dataPoint.LabelAngle;
angleInRadian = (Math.PI / 180) * angle;
ColumnChart.SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
}
else
{
centerOfRotation = new Point(markerLeft,
markerTop + dataPoint.Marker.MarkerSize.Height / 2);
if (dataPoint.LabelAngle >= -90 && dataPoint.LabelAngle < 0)
{
angle = 180 + dataPoint.LabelAngle;
angleInRadian = (Math.PI / 180) * angle;
radius += tb.TextBlockDesiredSize.Width + 3;
angle = (angleInRadian - Math.PI) * (180 / Math.PI);
ColumnChart.SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
else if (dataPoint.LabelAngle > 0 && dataPoint.LabelAngle <= 90)
{
//radius += 3;
angle = dataPoint.LabelAngle;
angleInRadian = (Math.PI / 180) * angle;
ColumnChart.SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
}
}
else
{
Point centerOfRotation = new Point();
Double radius = dataPoint.Marker.MarkerSize.Height / 2 * dataPoint.Marker.ScaleFactor;
Double angle = 0;
Double angleInRadian = 0;
if (autoLabelStyle == LabelStyles.OutSide)
{
centerOfRotation = new Point(markerLeft,
markerTop + dataPoint.Marker.MarkerSize.Height / 2);
if (dataPoint.LabelAngle >= -90 && dataPoint.LabelAngle < 0)
{
angle = 180 + dataPoint.LabelAngle;
angleInRadian = (Math.PI / 180) * angle;
radius += tb.TextBlockDesiredSize.Width;
angle = (angleInRadian - Math.PI) * (180 / Math.PI);
ColumnChart.SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
else if (dataPoint.LabelAngle > 0 && dataPoint.LabelAngle <= 90)
{
angle = dataPoint.LabelAngle;
angleInRadian = (Math.PI / 180) * angle;
ColumnChart.SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
}
else
{
centerOfRotation = new Point(markerLeft,
markerTop - dataPoint.Marker.MarkerSize.Height / 2);
if (dataPoint.LabelAngle > 0 && dataPoint.LabelAngle <= 90)
{
angle = dataPoint.LabelAngle - 180;
angleInRadian = (Math.PI / 180) * angle;
radius += tb.TextBlockDesiredSize.Width + 3;
angle = (angleInRadian - Math.PI) * (180 / Math.PI);
ColumnChart.SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
else if (dataPoint.LabelAngle >= -90 && dataPoint.LabelAngle < 0)
{
//radius += 3;
angle = dataPoint.LabelAngle;
angleInRadian = (Math.PI / 180) * angle;
ColumnChart.SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
}
}
}
if (autoLabelStyle != dataPoint.LabelStyle)
{
tb.TextElement.Foreground = Chart.CalculateDataPointLabelFontColor(dataPoint.Chart as Chart, dataPoint, dataPoint.LabelFontColor, (dataPoint.InternalYValue <= 0 ? LabelStyles.OutSide : autoLabelStyle));
}
dataPoint.LabelVisual = tb.Visual;
dataPoint.LabelVisual.Width = tb.TextBlockDesiredSize.Width;
dataPoint.LabelVisual.Height = tb.TextBlockDesiredSize.Height;
labelCanvas.Children.Add(tb.Visual);
}
return retVal;
}
/// <summary>
/// Create visual object of the Legend
/// </summary>
internal void CreateVisualObject()
{
if (!(Boolean)Enabled)
{
Visual = null;
return;
}
ElementData tag = new ElementData { Element = this, VisualElementName = "Legend" };
Visual = new Border() { Tag = tag };
Grid innerGrid = new Grid() { Tag = tag };
(Visual as Border).Child = innerGrid;
LegendContainer = new StackPanel() { Tag = tag };
if (!String.IsNullOrEmpty(Title))
{
Title legendTitle = new Title();
ApplyFontProperty(legendTitle);
if (TitleBackground != null)
legendTitle.InternalBackground = TitleBackground;
legendTitle.InternalHorizontalAlignment = TitleAlignmentX;
legendTitle.InternalVerticalAlignment = VerticalAlignment.Top;
legendTitle.TextAlignment = TitleTextAlignment;
legendTitle.CreateVisualObject(tag);
legendTitle.Measure(new Size(Double.MaxValue, Double.MaxValue));
if (legendTitle.DesiredSize.Width > InternalMaxWidth)
legendTitle.Visual.Width = InternalMaxWidth;
LegendContainer.Children.Add(legendTitle.Visual);
}
Grid legendContent = CreateLegendContent();
legendContent.Tag = tag;
LegendContainer.Children.Add(legendContent);
LegendContainer.VerticalAlignment = VerticalAlignment.Center;
LegendContainer.HorizontalAlignment = HorizontalAlignment.Stretch;
ApplyVisualProperty();
innerGrid.Children.Add(LegendContainer);
Visual.Cursor = this.Cursor;
Visual.Measure(new Size(Double.MaxValue, Double.MaxValue));
if (!Double.IsPositiveInfinity(InternalMaxHeight) && InternalMaxHeight < Visual.DesiredSize.Height)
Visual.Height = InternalMaxHeight;
else
Visual.Height = Visual.DesiredSize.Height;
if (!Double.IsPositiveInfinity(InternalMaxWidth) && InternalMaxWidth < Visual.DesiredSize.Width + InternalPadding.Left)
Visual.Width = InternalMaxWidth;
else if (Layout == Layouts.GridLayout)
Visual.Width = Visual.DesiredSize.Width + InternalPadding.Left;
else
Visual.Width = Visual.DesiredSize.Width;
PlotArea plotArea = (Chart as Chart).PlotArea;
RectangleGeometry rectGeo = new RectangleGeometry();
rectGeo.Rect = new Rect(InternalBorderThickness.Left, InternalBorderThickness.Top, Visual.Width - InternalBorderThickness.Left - InternalBorderThickness.Right, Visual.Height - InternalBorderThickness.Top - InternalBorderThickness.Bottom);
rectGeo.RadiusX = CornerRadius.TopLeft;
rectGeo.RadiusY = CornerRadius.TopRight;
LegendContainer.Clip = rectGeo;
ApplyShadow(innerGrid);
if (VerticalAlignment == System.Windows.VerticalAlignment.Bottom && (HorizontalAlignment == System.Windows.HorizontalAlignment.Center
|| HorizontalAlignment == System.Windows.HorizontalAlignment.Left || HorizontalAlignment == System.Windows.HorizontalAlignment.Right
|| HorizontalAlignment == System.Windows.HorizontalAlignment.Stretch))
Visual.Margin = new Thickness(0, DEFAULT_MARGIN, 0, 0);
else if (VerticalAlignment == System.Windows.VerticalAlignment.Top && (HorizontalAlignment == System.Windows.HorizontalAlignment.Center
|| HorizontalAlignment == System.Windows.HorizontalAlignment.Left || HorizontalAlignment == System.Windows.HorizontalAlignment.Right
|| HorizontalAlignment == System.Windows.HorizontalAlignment.Stretch))
Visual.Margin = new Thickness(0, 0, 0, DEFAULT_MARGIN);
else if (HorizontalAlignment == System.Windows.HorizontalAlignment.Left && (VerticalAlignment == System.Windows.VerticalAlignment.Center
|| VerticalAlignment == System.Windows.VerticalAlignment.Stretch))
Visual.Margin = new Thickness(0, 0, DEFAULT_MARGIN, 0);
else if (HorizontalAlignment == System.Windows.HorizontalAlignment.Right && (VerticalAlignment == System.Windows.VerticalAlignment.Center
|| VerticalAlignment == System.Windows.VerticalAlignment.Stretch))
Visual.Margin = new Thickness(DEFAULT_MARGIN, 0, 0, 0);
}
/// <summary>
/// Create labels for DataPoint
/// </summary>
/// <param name="dataPoint">DataPoint</param>
/// <returns>Border</returns>
private static Border CreateLabelForDataPoint(DataPoint dataPoint, Boolean isStreamLine, Int32 sliceIndex)
{
Title title = new Title()
{
IsNotificationEnable = false,
Chart = dataPoint.Chart,
Text = dataPoint.TextParser(dataPoint.LabelText),
InternalFontSize = (Double)dataPoint.LabelFontSize,
InternalFontColor = (isStreamLine && sliceIndex == 0) ? Chart.CalculateDataPointLabelFontColor(dataPoint.Chart as Chart, dataPoint, null, LabelStyles.OutSide) : Chart.CalculateDataPointLabelFontColor(dataPoint.Chart as Chart, dataPoint, dataPoint.LabelFontColor, (LabelStyles)dataPoint.LabelStyle),
InternalFontFamily = dataPoint.LabelFontFamily,
InternalFontStyle = (FontStyle)dataPoint.LabelFontStyle,
InternalFontWeight = (FontWeight)dataPoint.LabelFontWeight,
InternalBackground = dataPoint.LabelBackground
};
// If its a StreamLine funnel then default size of the Title should be a bit bigger
if (isStreamLine && sliceIndex == 0 && dataPoint.GetValue(DataPoint.LabelFontSizeProperty) == null && dataPoint.Parent.GetValue(DataPoint.LabelFontSizeProperty) == null)
{
title.InternalFontSize = 11.5;
}
title.CreateVisualObject(new ElementData() { Element = dataPoint });
if (!(Boolean)dataPoint.LabelEnabled)
title.Visual.Visibility = Visibility.Collapsed;
return title.Visual;
}
/// <summary>
/// Returns label for DataPoint
/// </summary>
/// <param name="chart"></param>
/// <param name="barParams"></param>
/// <param name="dataPoint"></param>
/// <param name="canvasLeft"></param>
/// <param name="canvasTop"></param>
/// <param name="canvasRight"></param>
/// <returns></returns>
private static void CreateLabel(Chart chart, Size barVisualSize, Boolean isPositive, Boolean isTopOfStack, DataPoint dataPoint,
Double canvasLeft, Double canvasTop, Double canvasRight, Canvas labelCanvas)
{
if (dataPoint.Faces == null)
return;
LabelStyles autoLabelStyle = (LabelStyles)dataPoint.LabelStyle;
if (isPositive || dataPoint.YValue == 0)
isPositive = true;
// Calculate proper position for Canvas top
canvasTop -= 7;
Double angle = 0;
if ((Boolean)dataPoint.LabelEnabled && !String.IsNullOrEmpty(dataPoint.LabelText))
{
Title tb = new Title()
{
Text = dataPoint.TextParser(dataPoint.LabelText),
InternalFontFamily = dataPoint.LabelFontFamily,
InternalFontSize = dataPoint.LabelFontSize.Value,
InternalFontWeight = (FontWeight)dataPoint.LabelFontWeight,
InternalFontStyle = (FontStyle)dataPoint.LabelFontStyle,
InternalBackground = dataPoint.LabelBackground,
InternalFontColor = Chart.CalculateDataPointLabelFontColor(dataPoint.Chart as Chart, dataPoint, dataPoint.LabelFontColor, autoLabelStyle),
Tag = new ElementData() { Element = dataPoint }
};
tb.CreateVisualObject(new ElementData() { Element = dataPoint });
Double labelTop = 0;
Double labelLeft = 0;
Double outsideGap = (chart.View3D ? 5 : 3);
Double insideGap = (chart.View3D ? 4 : 3);
if (Double.IsNaN(dataPoint.LabelAngle) || dataPoint.LabelAngle == 0)
{
Boolean isVertical = false;
if (!dataPoint.IsLabelStyleSet && !dataPoint.Parent.IsLabelStyleSet && !isTopOfStack && dataPoint.Parent.RenderAs != RenderAs.Bar)
{
autoLabelStyle = LabelStyles.Inside;
}
CalculateAutoPlacement(chart.View3D, dataPoint, barVisualSize, isPositive, autoLabelStyle, ref labelLeft, ref labelTop, ref angle,
canvasLeft, canvasTop, canvasRight, isVertical, insideGap, outsideGap, tb);
tb.Visual.SetValue(Canvas.LeftProperty, labelLeft);
tb.Visual.SetValue(Canvas.TopProperty, labelTop);
tb.Visual.RenderTransformOrigin = new Point(0, 0.5);
tb.Visual.RenderTransform = new RotateTransform()
{
CenterX = 0,
CenterY = 0,
Angle = angle
};
if (!dataPoint.IsLabelStyleSet && !dataPoint.Parent.IsLabelStyleSet)
{
if (isPositive)
{
if (labelLeft + tb.TextBlockDesiredSize.Width > chart.PlotArea.BorderElement.Width)
autoLabelStyle = LabelStyles.Inside;
}
else
{
if (labelLeft < 0)
autoLabelStyle = LabelStyles.Inside;
}
}
if (autoLabelStyle != dataPoint.LabelStyle)
{
CalculateAutoPlacement(chart.View3D, dataPoint, barVisualSize, isPositive, autoLabelStyle, ref labelLeft, ref labelTop, ref angle,
canvasLeft, canvasTop, canvasRight, isVertical, insideGap, outsideGap, tb);
tb.Visual.SetValue(Canvas.LeftProperty, labelLeft);
tb.Visual.SetValue(Canvas.TopProperty, labelTop);
}
if (chart.SmartLabelEnabled)
{
if (dataPoint.Parent.RenderAs == RenderAs.StackedBar || dataPoint.Parent.RenderAs == RenderAs.StackedBar100)
{
if (!isVertical)
{
if (autoLabelStyle == LabelStyles.Inside)
{
if (barVisualSize.Width < tb.Visual.Width)
return;
}
}
}
}
}
else
{
if (isPositive)
{
Point centerOfRotation = new Point(canvasRight + (((Double)dataPoint.MarkerSize / 2) * (Double)dataPoint.MarkerScale),
canvasTop + barVisualSize.Height / 2 + 6);
Double radius = 0;
angle = 0;
Double angleInRadian = 0;
if (autoLabelStyle == LabelStyles.OutSide)
{
if (dataPoint.LabelAngle <= 90 && dataPoint.LabelAngle >= -90)
{
angle = dataPoint.LabelAngle;
radius += 4;
angleInRadian = (Math.PI / 180) * angle;
SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
}
else
{
centerOfRotation = new Point(canvasRight - (((Double)dataPoint.MarkerSize / 2) * (Double)dataPoint.MarkerScale),
canvasTop + barVisualSize.Height / 2 + 6);
if (dataPoint.LabelAngle > 0 && dataPoint.LabelAngle <= 90)
{
angle = dataPoint.LabelAngle - 180;
angleInRadian = (Math.PI / 180) * angle;
radius += tb.TextBlockDesiredSize.Width + 3;
angle = (angleInRadian - Math.PI) * (180 / Math.PI);
SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
else if (dataPoint.LabelAngle >= -90 && dataPoint.LabelAngle < 0)
{
angle = dataPoint.LabelAngle - 180;
angleInRadian = (Math.PI / 180) * angle;
radius += tb.TextBlockDesiredSize.Width + 4;
angle = (angleInRadian - Math.PI) * (180 / Math.PI);
SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
}
}
else
{
Point centerOfRotation = new Point(canvasLeft - (((Double)dataPoint.MarkerSize / 2) * (Double)dataPoint.MarkerScale),
canvasTop + barVisualSize.Height / 2 + 6);
Double radius = 0;
angle = 0;
Double angleInRadian = 0;
if (autoLabelStyle == LabelStyles.OutSide)
{
if (dataPoint.LabelAngle > 0 && dataPoint.LabelAngle <= 90)
{
angle = dataPoint.LabelAngle - 180;
angleInRadian = (Math.PI / 180) * angle;
radius += tb.TextBlockDesiredSize.Width + 3;
angle = (angleInRadian - Math.PI) * (180 / Math.PI);
SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
else if (dataPoint.LabelAngle >= -90 && dataPoint.LabelAngle < 0)
{
angle = dataPoint.LabelAngle - 180;
angleInRadian = (Math.PI / 180) * angle;
radius += tb.TextBlockDesiredSize.Width + 3;
angle = (angleInRadian - Math.PI) * (180 / Math.PI);
SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
}
else
{
centerOfRotation = new Point(canvasLeft + (((Double)dataPoint.MarkerSize / 2) * (Double)dataPoint.MarkerScale),
canvasTop + barVisualSize.Height / 2 + 6);
if (dataPoint.LabelAngle <= 90 && dataPoint.LabelAngle >= -90)
{
angle = dataPoint.LabelAngle;
radius += 3;
angleInRadian = (Math.PI / 180) * angle;
SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
}
}
}
if (autoLabelStyle != dataPoint.LabelStyle)
{
tb.TextElement.Foreground = Chart.CalculateDataPointLabelFontColor(dataPoint.Chart as Chart, dataPoint, dataPoint.LabelFontColor, (dataPoint.YValue == 0 ? LabelStyles.OutSide : autoLabelStyle));
}
dataPoint.LabelVisual = tb.Visual;
labelCanvas.Children.Add(tb.Visual);
}
}
/// <summary>
/// Place label for DataPoint
/// </summary>
/// <param name="visual">Visual</param>
/// <param name="labelCanvas">Canvas for label</param>
/// <param name="dataPoint">DataPoint</param>
internal static void CreateAndPositionLabel(Canvas labelCanvas, DataPoint dataPoint)
{
if (dataPoint.LabelVisual != null)
{
Panel parent = dataPoint.LabelVisual.Parent as Panel;
if(parent != null)
parent.Children.Remove(dataPoint.LabelVisual);
}
if ((Boolean)dataPoint.LabelEnabled && !String.IsNullOrEmpty(dataPoint.LabelText))
{
Canvas dataPointVisual = dataPoint.Faces.Visual as Canvas;
Title tb = new Title()
{
Text = dataPoint.TextParser(dataPoint.LabelText),
FontFamily = dataPoint.LabelFontFamily,
FontSize = dataPoint.LabelFontSize.Value,
FontWeight = (FontWeight)dataPoint.LabelFontWeight,
FontStyle = (FontStyle)dataPoint.LabelFontStyle,
Background = dataPoint.LabelBackground,
FontColor = Chart.CalculateDataPointLabelFontColor(dataPoint.Chart as Chart, dataPoint, dataPoint.LabelFontColor, LabelStyles.OutSide)
};
tb.CreateVisualObject(new ElementData() { Element = dataPoint });
tb.Visual.Height = tb.Height;
tb.Visual.Width = tb.Width;
dataPoint.LabelVisual = tb.Visual;
// Double labelTop = (Double)dataPointVisual.GetValue(Canvas.TopProperty) - tb.Height;
// Double labelLeft = (Double)dataPointVisual.GetValue(Canvas.LeftProperty) + (dataPointVisual.Width - tb.Width) / 2;
// if (labelTop < 0) labelTop = (Double)dataPointVisual.GetValue(Canvas.TopProperty);
// if (labelLeft < 0) labelLeft = 1;
// if (labelLeft + tb.ActualWidth > labelCanvas.Width)
// labelLeft = labelCanvas.Width - tb.ActualWidth - 2;
// tb.Visual.SetValue(Canvas.LeftProperty, labelLeft);
// tb.Visual.SetValue(Canvas.TopProperty, labelTop);
SetLabelPosition(dataPoint, labelCanvas.Width, labelCanvas.Height);
labelCanvas.Children.Add(tb.Visual);
}
}
/// <summary>
/// Returns label for DataPoint
/// </summary>
/// <param name="chart"></param>
/// <param name="columnParams"></param>
/// <param name="dataPoint"></param>
/// <param name="canvasLeft"></param>
/// <param name="canvasTop"></param>
/// <returns></returns>
private static void CreateLabel(Chart chart, Size columnVisualSize, Boolean isPositive, Boolean isTopOfStack, DataPoint dataPoint, Double canvasLeft, Double canvasTop, ref Canvas labelCanvas)
{
if (dataPoint.Faces == null)
return;
if ((Boolean)dataPoint.LabelEnabled && !String.IsNullOrEmpty(dataPoint.LabelText))
{
LabelStyles autoLabelStyle = (LabelStyles)dataPoint.LabelStyle;
if (isPositive || dataPoint.YValue == 0)
isPositive = true;
// Calculate proper position for Canvas top
if (isPositive)
canvasTop -= 6;
else
canvasTop -= 8;
Double angle = 0;
Title tb = new Title()
{
Text = dataPoint.TextParser(dataPoint.LabelText),
InternalFontFamily = dataPoint.LabelFontFamily,
InternalFontSize = dataPoint.LabelFontSize.Value,
InternalFontWeight = (FontWeight)dataPoint.LabelFontWeight,
InternalFontStyle = (FontStyle)dataPoint.LabelFontStyle,
InternalBackground = dataPoint.LabelBackground,
InternalFontColor = Chart.CalculateDataPointLabelFontColor(dataPoint.Chart as Chart, dataPoint, dataPoint.LabelFontColor, autoLabelStyle),
Padding = new Thickness(0.1, 0.1, 0.1, 0.1),
Tag = new ElementData() { Element = dataPoint }
};
tb.CreateVisualObject(new ElementData() { Element = dataPoint });
Double labelLeft = 0;
Double labelTop = 0;
Double outsideGap = 4;
Double insideGap = 6;
if (Double.IsNaN(dataPoint.LabelAngle) || dataPoint.LabelAngle == 0)
{
Boolean isVertical = false;
if (columnVisualSize.Width < tb.TextBlockDesiredSize.Width)
{
tb.Visual.RenderTransformOrigin = new Point(0, 0.5);
tb.Visual.RenderTransform = new RotateTransform()
{
CenterX = 0,
CenterY = 0,
Angle = -90
};
isVertical = true;
}
else
isVertical = false;
if (!dataPoint.IsLabelStyleSet && !dataPoint.Parent.IsLabelStyleSet && !isTopOfStack && dataPoint.Parent.RenderAs != RenderAs.Column)
{
autoLabelStyle = LabelStyles.Inside;
}
if (dataPoint.Parent.RenderAs == RenderAs.StackedColumn100 && chart.View3D
&& isTopOfStack)
{
if (!dataPoint.IsLabelStyleSet && !dataPoint.Parent.IsLabelStyleSet && !isVertical && tb.TextBlockDesiredSize.Height >= columnVisualSize.Height)
autoLabelStyle = LabelStyles.OutSide;
}
CalculateAutoPlacement(chart.View3D, dataPoint, columnVisualSize, isPositive, autoLabelStyle, ref labelLeft, ref labelTop, ref angle,
canvasLeft, canvasTop, isVertical, insideGap, outsideGap, tb, isTopOfStack);
tb.Visual.SetValue(Canvas.LeftProperty, labelLeft);
tb.Visual.SetValue(Canvas.TopProperty, labelTop);
tb.Visual.RenderTransformOrigin = new Point(0, 0.5);
tb.Visual.RenderTransform = new RotateTransform()
{
CenterX = 0,
CenterY = 0,
Angle = angle
};
Double depth3D = chart.ChartArea.PLANK_DEPTH / chart.PlotDetails.Layer3DCount * (chart.View3D ? 1 : 0);
if (!dataPoint.IsLabelStyleSet && !dataPoint.Parent.IsLabelStyleSet)
{
if (isPositive)
{
if (isVertical)
{
if (labelTop + outsideGap - tb.TextBlockDesiredSize.Width < -depth3D)
autoLabelStyle = LabelStyles.Inside;
}
else
{
if (labelTop < -depth3D)
autoLabelStyle = LabelStyles.Inside;
}
}
else
{
if (isVertical)
{
if (labelTop + outsideGap + 2 > chart.PlotArea.BorderElement.Height - depth3D + chart.ChartArea.PLANK_THICKNESS)
autoLabelStyle = LabelStyles.Inside;
}
else
{
if (labelTop + tb.TextBlockDesiredSize.Height > chart.PlotArea.BorderElement.Height - depth3D + chart.ChartArea.PLANK_THICKNESS)
autoLabelStyle = LabelStyles.Inside;
}
}
}
if (autoLabelStyle != dataPoint.LabelStyle)
{
CalculateAutoPlacement(chart.View3D, dataPoint, columnVisualSize, isPositive, autoLabelStyle, ref labelLeft, ref labelTop, ref angle,
canvasLeft, canvasTop, isVertical, insideGap, outsideGap, tb, isTopOfStack);
tb.Visual.SetValue(Canvas.LeftProperty, labelLeft);
tb.Visual.SetValue(Canvas.TopProperty, labelTop);
tb.Visual.RenderTransformOrigin = new Point(0, 0.5);
tb.Visual.RenderTransform = new RotateTransform()
{
CenterX = 0,
CenterY = 0,
Angle = angle
};
}
if (chart.SmartLabelEnabled)
{
if (dataPoint.Parent.RenderAs == RenderAs.StackedColumn || dataPoint.Parent.RenderAs == RenderAs.StackedColumn100)
{
if (isVertical)
{
if (autoLabelStyle == LabelStyles.Inside)
{
if (columnVisualSize.Height < tb.Visual.Width)
return;
}
}
}
}
}
else
{
if (isPositive)
{
Point centerOfRotation = new Point(canvasLeft + columnVisualSize.Width / 2,
canvasTop - (((Double)dataPoint.MarkerSize / 2) * (Double)dataPoint.MarkerScale));
Double radius = 0;
angle = 0;
Double angleInRadian = 0;
if (autoLabelStyle == LabelStyles.OutSide)
{
if (dataPoint.LabelAngle > 0 && dataPoint.LabelAngle <= 90)
{
angle = dataPoint.LabelAngle - 180;
angleInRadian = (Math.PI / 180) * angle;
radius += tb.TextBlockDesiredSize.Width;
angle = (angleInRadian - Math.PI) * (180 / Math.PI);
SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
else if (dataPoint.LabelAngle >= -90 && dataPoint.LabelAngle < 0)
{
angle = dataPoint.LabelAngle;
angleInRadian = (Math.PI / 180) * angle;
SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
}
else
{
centerOfRotation = new Point(canvasLeft + columnVisualSize.Width / 2,
canvasTop + (((Double)dataPoint.MarkerSize / 2) * (Double)dataPoint.MarkerScale));
radius = 4;
if (dataPoint.LabelAngle >= -90 && dataPoint.LabelAngle < 0)
{
angle = 180 + dataPoint.LabelAngle;
angleInRadian = (Math.PI / 180) * angle;
radius += tb.TextBlockDesiredSize.Width + 5;
angle = (angleInRadian - Math.PI) * (180 / Math.PI);
SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
else if (dataPoint.LabelAngle > 0 && dataPoint.LabelAngle <= 90)
{
radius += 5;
angle = dataPoint.LabelAngle;
angleInRadian = (Math.PI / 180) * angle;
SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
}
}
else
{
Point centerOfRotation = new Point();
Double radius = 0;
angle = 0;
Double angleInRadian = 0;
if (autoLabelStyle == LabelStyles.OutSide)
{
centerOfRotation = new Point(canvasLeft + columnVisualSize.Width / 2,
canvasTop + (((Double)dataPoint.MarkerSize / 2) * (Double)dataPoint.MarkerScale) + 10);
radius = 4;
if (dataPoint.LabelAngle >= -90 && dataPoint.LabelAngle < 0)
{
angle = 180 + dataPoint.LabelAngle;
angleInRadian = (Math.PI / 180) * angle;
radius += tb.TextBlockDesiredSize.Width;
angle = (angleInRadian - Math.PI) * (180 / Math.PI);
SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
else if (dataPoint.LabelAngle > 0 && dataPoint.LabelAngle <= 90)
{
angle = dataPoint.LabelAngle;
angleInRadian = (Math.PI / 180) * angle;
SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
}
else
{
centerOfRotation = new Point(canvasLeft + columnVisualSize.Width / 2,
canvasTop - (((Double)dataPoint.MarkerSize / 2) * (Double)dataPoint.MarkerScale));
if (dataPoint.LabelAngle > 0 && dataPoint.LabelAngle <= 90)
{
angle = dataPoint.LabelAngle - 180;
angleInRadian = (Math.PI / 180) * angle;
radius += tb.TextBlockDesiredSize.Width;
angle = (angleInRadian - Math.PI) * (180 / Math.PI);
SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
else if (dataPoint.LabelAngle >= -90 && dataPoint.LabelAngle < 0)
{
//radius += 3;
angle = dataPoint.LabelAngle;
angleInRadian = (Math.PI / 180) * angle;
SetRotation(radius, angle, angleInRadian, centerOfRotation, labelLeft, labelTop, tb);
}
}
}
}
if (autoLabelStyle != dataPoint.LabelStyle)
{
tb.TextElement.Foreground = Chart.CalculateDataPointLabelFontColor(dataPoint.Chart as Chart, dataPoint, dataPoint.LabelFontColor, (dataPoint.YValue == 0 ? LabelStyles.OutSide : autoLabelStyle));
}
dataPoint.LabelVisual = tb.Visual;
labelCanvas.Children.Add(tb.Visual);
}
}
/// <summary>
/// Create visual object of the Legend
/// </summary>
internal void CreateVisualObject()
{
if (!(Boolean)Enabled)
{
Visual = null;
return;
}
ElementData tag = new ElementData { Element = this, VisualElementName = "Legend" };
Visual = new Border() { Tag = tag };
Grid innerGrid = new Grid() { Tag = tag };
(Visual as Border).Child = innerGrid;
LegendContainer = new StackPanel() { Tag = tag };
if (!String.IsNullOrEmpty(Title))
{
Title legendTitle = new Title();
ApplyFontProperty(legendTitle);
if (TitleBackground != null)
legendTitle.InternalBackground = TitleBackground;
legendTitle.InternalHorizontalAlignment = TitleAlignmentX;
legendTitle.InternalVerticalAlignment = VerticalAlignment.Top;
legendTitle.TextAlignment = TitleTextAlignment;
legendTitle.CreateVisualObject(tag);
legendTitle.Measure(new Size(Double.MaxValue, Double.MaxValue));
if (legendTitle.DesiredSize.Width > InternalMaxWidth)
legendTitle.Visual.Width = InternalMaxWidth;
LegendContainer.Children.Add(legendTitle.Visual);
}
Grid legendContent = CreateLegendContent();
legendContent.Tag = tag;
LegendContainer.Children.Add(legendContent);
LegendContainer.VerticalAlignment = VerticalAlignment.Center;
LegendContainer.HorizontalAlignment = HorizontalAlignment.Center;
ApplyVisualProperty();
innerGrid.Children.Add(LegendContainer);
Visual.Cursor = this.Cursor;
Visual.Measure(new Size(Double.MaxValue, Double.MaxValue));
if (!Double.IsPositiveInfinity(InternalMaxHeight) && InternalMaxHeight < Visual.DesiredSize.Height)
Visual.Height = InternalMaxHeight;
else
Visual.Height = Visual.DesiredSize.Height;
if (!Double.IsPositiveInfinity(InternalMaxWidth) && InternalMaxWidth < Visual.DesiredSize.Width + InternalPadding.Left)
Visual.Width = InternalMaxWidth;
else
Visual.Width = Visual.DesiredSize.Width + InternalPadding.Left;
}
/// <summary>
/// Create labels for DataPoint
/// </summary>
/// <param name="dataPoint">DataPoint</param>
/// <returns>Border</returns>
private static Border CreateLabelForDataPoint(DataPoint dataPoint, Int32 sliceIndex)
{
Title title = new Title()
{
IsNotificationEnable = false,
Chart = dataPoint.Chart,
Text = dataPoint.TextParser(dataPoint.LabelText),
InternalFontSize = (Double)dataPoint.LabelFontSize,
InternalFontColor = Chart.CalculateDataPointLabelFontColor(dataPoint.Chart as Chart, dataPoint, dataPoint.LabelFontColor, (LabelStyles)dataPoint.LabelStyle),
InternalFontFamily = dataPoint.LabelFontFamily,
InternalFontStyle = (FontStyle)dataPoint.LabelFontStyle,
InternalFontWeight = (FontWeight)dataPoint.LabelFontWeight,
InternalBackground = dataPoint.LabelBackground
};
title.CreateVisualObject(new ElementData() { Element = dataPoint });
if (!(Boolean)dataPoint.LabelEnabled)
title.Visual.Visibility = Visibility.Collapsed;
return title.Visual;
}
