private Style GetStyle()
{
var style = this.Style;
if (style == null)
{
style = ChartStyleHelper.GetSegmentSeriesDefaultStyle();
}
return(style);
}
/// <summary>
/// 构造函数
/// </summary>
public LineSeriesBase()
: base()
{
var style = base.Style;
if (style == null)
{
style = ChartStyleHelper.GetLineSeriesDefaultStyle();
}
this.StyleChanged(style);
this.EnableTooltipChanged(base.EnableTooltip);
this.VisibilityChanged(Visibility.Visible, base.Visibility);
}
/// <summary>
/// 创建坐标轴Label控件
/// </summary>
/// <param name="axis">坐标轴</param>
/// <param name="labelText">标签文本</param>
/// <returns>Label控件</returns>
public static TextBlock CreateLabelControl(AxisAbs axis, string labelText)
{
var textBlock = new TextBlock();
textBlock.Text = labelText;
if (axis.LabelStyle == null)
{
textBlock.Style = ChartStyleHelper.GetAxisLabelStyle(axis.DockOrientation);
}
else
{
textBlock.Style = axis.LabelStyle;
}
return(textBlock);
}
private Path CreateBackgroundLabelLine(List <BackgroundLabelLineSegment> labelLineSegments)
{
if (!this._enableBackgroundLabelLine ||
labelLineSegments == null ||
labelLineSegments.Count == 0)
{
return(null);
}
var handler = this.CreateBackgroundLabelLineFunc;
if (handler != null)
{
return(handler(labelLineSegments));
}
Path backgroundLabelLine = new Path();
if (this._backgroundLabelLineStyle == null)
{
backgroundLabelLine.Style = ChartStyleHelper.GetDefaultBackgroundLabelLineStyle();
}
else
{
backgroundLabelLine.Style = this._backgroundLabelLineStyle;
}
GeometryGroup geometryGroup = new GeometryGroup();
foreach (var labelLineSegment in labelLineSegments)
{
PathFigure segmentFigure = new PathFigure();
segmentFigure.StartPoint = labelLineSegment.Point1;
segmentFigure.Segments.Add(new LineSegment(labelLineSegment.Point2, true));
geometryGroup.Children.Add(new PathGeometry()
{
Figures = new PathFigureCollection(new PathFigure[] { segmentFigure })
});
}
backgroundLabelLine.Data = geometryGroup;
return(backgroundLabelLine);
}
/// <summary>
/// 绘制X轴坐标刻度线
/// </summary>
/// <param name="axis">X轴坐标</param>
/// <param name="canvas">画布</param>
/// <param name="x1">第一个X</param>
/// <param name="x2">第二个X</param>
public static void DrawXAxisLabelLine(AxisAbs axis, Canvas canvas, double x1, double x2)
{
if (!axis.DrawAxisLine || !DoubleHasValue(x1) || !DoubleHasValue(x2))
{
return;
}
var labelLinePath = new Path();
labelLinePath.Style = axis.AxisLineStyle;
if (labelLinePath.Style == null)
{
labelLinePath.Style = ChartStyleHelper.GetDefaultAxisLabelLineStyle();
}
Point point1, point2;
if (axis.IsAxisXBottom())
{
point1 = new Point(ChartConstant.ZERO_D, ChartConstant.ZERO_D);
point2 = new Point(canvas.Width, ChartConstant.ZERO_D);
}
else
{
point1 = new Point(ChartConstant.ZERO_D, canvas.Height);
point2 = new Point(canvas.Width, canvas.Height);
}
PathFigure labelPathFigure = new PathFigure();
labelPathFigure.StartPoint = point1;
labelPathFigure.Segments.Add(new LineSegment(point2, true));
labelLinePath.Data = new PathGeometry()
{
Figures = new PathFigureCollection(new PathFigure[] { labelPathFigure })
};
canvas.Children.Add(labelLinePath);
}
private TextBlock GetTitleControl()
{
if (string.IsNullOrWhiteSpace(this._title))
{
return(null);
}
if (this._titleControl == null)
{
TextBlock titleControl = new TextBlock();
titleControl.Style = this._titleStyle;
if (titleControl.Style == null)
{
titleControl.Style = ChartStyleHelper.CreateAxisTitleStyle(this._dockOrientation);
}
titleControl.Text = this._title;
this._titleControl = titleControl;
}
return(this._titleControl);
}
/// <summary>
/// 测量标签文本大小
/// </summary>
/// <param name="axis">坐标轴</param>
/// <param name="labelText">标签文本</param>
/// <returns>标签文本大小</returns>
public static Size MeasureLabelTextSize(AxisAbs axis, string labelText)
{
if (_measureTextLabel == null)
{
_measureTextLabel = new TextBlock();
}
TextBlock measureTextLabel = _measureTextLabel;
measureTextLabel.Text = labelText;
if (axis.LabelStyle == null)
{
measureTextLabel.Style = ChartStyleHelper.GetAxisLabelStyle(axis.DockOrientation);
}
else
{
measureTextLabel.Style = axis.LabelStyle;
}
var size = UITextHelper.MeasureTextSize(measureTextLabel);
measureTextLabel.Style = null;
return(size);
}
/// <summary>
/// 绘制Y轴坐标刻度线
/// </summary>
/// <param name="axis">Y轴坐标</param>
/// <param name="canvas">画布</param>
/// <param name="yList">Y轴刻度集合</param>
public static void DrawYAxisLabelLine(AxisAbs axis, Canvas canvas, List <double> yList)
{
if (!axis.DrawAxisLine || yList == null || yList.Count == 0)
{
return;
}
var labelLinePath = new Path();
labelLinePath.Style = axis.AxisLineStyle;
if (labelLinePath.Style == null)
{
labelLinePath.Style = ChartStyleHelper.GetDefaultAxisLabelLineStyle();
}
GeometryGroup geometryGroup = new GeometryGroup();
Point point1, point2;
double y;
int lastIndex = yList.Count - 1;
for (int i = 0; i < yList.Count; i++)
{
y = yList[i];
if (axis.IsAxisYLeft())
{
point1 = new Point(canvas.Width - axis.LabelSize, y);
point2 = new Point(canvas.Width, y);
}
else
{
point1 = new Point(ChartConstant.ZERO_D, y);
point2 = new Point(axis.LabelSize, y);
}
PathFigure labelPathFigure = new PathFigure();
labelPathFigure.StartPoint = point1;
labelPathFigure.Segments.Add(new LineSegment(point2, true));
geometryGroup.Children.Add(new PathGeometry()
{
Figures = new PathFigureCollection(new PathFigure[] { labelPathFigure })
});
}
//坐标轴
if (axis.IsAxisYLeft())
{
point1 = new Point(canvas.Width, yList.First());
point2 = new Point(canvas.Width, yList.Last());
}
else
{
point1 = new Point(ChartConstant.ZERO_D, yList.First());
point2 = new Point(ChartConstant.ZERO_D, yList.Last());
}
PathFigure axisPathFigure = new PathFigure();
axisPathFigure.StartPoint = point1;
axisPathFigure.Segments.Add(new LineSegment(point2, true));
geometryGroup.Children.Add(new PathGeometry()
{
Figures = new PathFigureCollection(new PathFigure[] { axisPathFigure })
});
labelLinePath.Data = geometryGroup;
canvas.Children.Add(labelLinePath);
}
