//
public ChartAxis(double MainTicks, double MinorTicks, double pMinimum, double pMaximum)
: base(new List <Type>() { typeof(ChartPadding), typeof(ChartAxis), typeof(ChartData) })
{
MyRange = new CappedRange(pMinimum, pMaximum);
//This filters when what children are added to this instance of ChartAxis
RegistrationFilter = (
(object o) =>
{
if (o.GetType() == typeof(ChartData))
{
var d = o as ChartData;
var axis_label = (Orientation == AxisOrientation.Horizontal) ? d.HorizontalLabel : d.VerticalLabel;
return(Label == axis_label);
}
return(false);
});
//Setup divisions
this.MainTicks = MainTicks;
this.MinorTicks = MinorTicks;
MaskPaint = new SKPaint();
MaskPaint.Color = Globals.BackgroundColor.ToSKColor();
//Calculate the width of a space charater
SpaceWidth = MajorPaint.MeasureText(" ");
//Must be set last as it depends on above
AxisLocation = 0.5;
CircleRadius = SpaceWidth * 2;
MajorTickLineSize = 5;
//
AxisDrawEvents = new List <ChartAxisDrawEvent>();
AxisDataEvents = new List <ChartAxisEvent>();
AxisDataColors = new List <SKColor>();
AxisDataRanges = new List <Range>();
//
Rerange = true;
}
public override void ParentSizeAdjusted()
{
SpaceWidth = MajorPaint.MeasureText(" ");
TotalPadding = 0;
CalculateScales();
}
void DrawLabel(ref SKCanvas c, float length)
{
var hei = MajorTextSize;
if (hei > AxisLabelPadding)
{
AxisLabelPadding = hei + SpaceWidth;
}
var txt = Convert.ToString(Label);
var wid = MajorPaint.MeasureText(txt) + SpaceWidth;
var pth = new SKPath();
SKPoint pt1, pt2;
float xmakoffset = 0, ymakoffset = 0, xfilloffset = 0, yfilloffset = 0;
float xfillsoffset = 0, yfillsoffset = 0;
var offset = 0;
length /= 2;
switch (Orientation)
{
case AxisOrientation.Vertical:
{
offset = (int)LabelPadding + (int)SpaceWidth;
var x = GetAxisLabelPosition() - offset;
var ys = (float)(AxisStart + 2 * SpaceWidth);
pt2 = new SKPoint(x, ys);
pt1 = new SKPoint(x, ys + wid);
xmakoffset = (CircleRadius + SpaceWidth * 2.0f);
xfilloffset = -hei;
yfilloffset = -SpaceWidth;
xfillsoffset = SpaceWidth;
yfillsoffset = SpaceWidth;
}
break;
case AxisOrientation.Horizontal:
{
offset = (int)TotalPadding - (int)SpaceWidth;
var xs = (float)AxisEnd - SpaceWidth * 2;
var y = GetAxisLabelPosition() + offset;
pt1 = new SKPoint(xs - wid, y);
pt2 = new SKPoint(xs, y);
ymakoffset = -(CircleRadius + hei + SpaceWidth);
yfilloffset = -hei;
xfilloffset = SpaceWidth;
yfillsoffset = SpaceWidth;
xfillsoffset = -SpaceWidth;
}
break;
default:
return;
}
var pts = new SKPoint[] {
pt1,
pt2
};
pth.AddPoly(pts, false);
var rect = new SKRect(
pt1.X + xfillsoffset,
pt1.Y + yfillsoffset,
pt2.X + xfilloffset,
pt2.Y + yfilloffset);
c.DrawRoundRect(rect, SpaceWidth, SpaceWidth, MaskPaint);
c.DrawTextOnPath(txt, pth, 0, 0, MajorPaint);
//
pth.Offset(xmakoffset, ymakoffset);
pts = pth.Points;
}
public SKSize MeasureText(string Input)
{
return(new SKSize(MajorPaint.MeasureText(Input), MajorTextSize));
}