protected override void InternalDraw(DrawingContext dc)
{
if (_pen == null)
{
_pen = Element.GetDashPen(Brushes.Gray);
}
var axisXConverter = Element.AxisXConverter;
var blockLeft = axisXConverter.DataToScreen(Element.DropedPlacement.Start);
var blockRight = axisXConverter.DataToScreen(Element.DropedPlacement.End);
//if(0 < blockLeft)
dc.DrawGuideLineLine(_pen, new Point(blockLeft, 0), new Point(blockLeft, Element.RenderSize.Height));
dc.DrawGuideLineLine(_pen, new Point(blockRight, 0), new Point(blockRight, Element.RenderSize.Height));
base.InternalDraw(dc);
}
protected override void InternalDraw(DrawingContext dc)
{
var renderSize = Element.RenderSize;
dc.DrawRectangle(Brushes.Transparent, null, new Rect(renderSize));
if (_sectionsCache == null || _maxRenderWidth < renderSize.Width)
{
_sectionWidth = Element.Graduations.Count * Element.Interval;
_maxRenderWidth = renderSize.Width;
DrawSections();
}
//var max = Element.Graduations.Max();
//得到相对于大容器的位置
var viewPortWidth = Element.AxisPanel.ViewportRangeX.ViewMin;// Element.AxisXConverter.ScreenToViewport(0);//Element.AxisPanel.HorizontalOffset;
//用段的模求出偏移量
var xTranslateTransform = -viewPortWidth % (_sectionWidth);
//Debug.Print(_sectionWidth.ToString());
dc.PushClip(new RectangleGeometry(new Rect(renderSize)));
dc.PushTransform(new TranslateTransform(xTranslateTransform, renderSize.Height - 14));//
dc.DrawDrawing(_sectionsCache);
dc.Pop();
dc.Pop();
MakeGuideLines(xTranslateTransform);
var y = GetY();
//draw base line
if (Element.ShowBaseLine)
{
dc.DrawGuideLineLine(CreateSelectedLinePen(), new Point(0, y), new Point(renderSize.Width, y));
}
}
private void DrawHorizontalLine(DrawingContext drawingContext)
{
var middleY = RenderSize.Height / 2;
drawingContext.DrawGuideLineLine(MaxPen, new Point(TextWidth, middleY), new Point(RenderSize.Width - TextWidth, middleY));
}
