public void Dispose()
{
TextPaint?.Dispose();
LegendBoxBorderPaint?.Dispose();
LegendBoxPaint?.Dispose();
TitlePaint?.Dispose();
ChartItemFillPaint?.Dispose();
ChartItemOutlinePaint?.Dispose();
}
/// <summary>
/// Vykreslení popisu grafu
/// </summary>
/// <param name="label"></param>
internal void DrawTitle(string label)
{
Name = label;
if (!string.IsNullOrEmpty(label))
{
SKRect bounds = new SKRect();
TitlePaint.MeasureText(label, ref bounds);
var x = Width / 2 - bounds.MidX;
var y = -bounds.Top;
_canvas.DrawText(label, x, y, TitlePaint);
}
}
/// <summary>
/// Vykreslení osy Y
/// </summary>
/// <param name="yAsixs"></param>
internal void DrawYAsixs(List <CMLChartYAsix> yAsixs)
{
foreach (var yAsix in yAsixs)
{
// Vykreslení osy
int asixStartPointX;
int asixEndPointX;
if (yAsix.Location == Location.Left)
{
asixStartPointX = Width - (int)Math.Floor(Width * offsetX);
asixEndPointX = Width - (int)Math.Floor(Width * offsetX);
}
else
{
asixStartPointX = (int)Math.Floor(Width * offsetX);
asixEndPointX = (int)Math.Floor(Width * offsetX);
}
var asixStartPointY = (int)Math.Floor(Height * offsetYTop);;
var asixEndPointY = (int)Math.Floor(Height * offsetYBottom);
_canvas.DrawLine(new SKPoint(asixStartPointX, asixStartPointY), new SKPoint(asixEndPointX, asixEndPointY), AsixYPaint);
if (yAsix.ZoroValueMark && yAsix.MinValue < 0)
{
const int separatorLength = 5;
var koef = (0 - yAsix.MinValue) / (yAsix.MaxValue - yAsix.MinValue);
var length = (int)Math.Floor(Height * (offsetYBottom - offsetYTop));
var zeroAsixStartPointX = Width - (int)Math.Floor(Width * offsetX) - separatorLength;
var zeroAsixStartPointY = (int)Math.Floor(Height * offsetYBottom) - (int)(koef * length);
var zeroAsixEndPointX = (int)Math.Floor(Width * offsetX);
var zeroAsixEndPointY = zeroAsixStartPointY;
DrawDashedLine(new SKPoint(zeroAsixStartPointX, zeroAsixStartPointY), new SKPoint(zeroAsixEndPointX, zeroAsixEndPointY), 5, 5);
}
var minIndex = 0;
var maxIndex = 4;
for (int i = minIndex; i <= maxIndex; i++)
{
const int separatorLength = 5;
var koef = i * 0.25;
int asixDescStartPointX;
int asixDescEndPointX;
if (yAsix.Location == Location.Left)
{
asixDescStartPointX = Width - (int)Math.Floor(Width * offsetX) - separatorLength;
asixDescEndPointX = Width - (int)Math.Floor(Width * offsetX);
}
else
{
asixDescStartPointX = (int)Math.Floor(Width * offsetX);
asixDescEndPointX = (int)Math.Floor(Width * offsetX) + separatorLength;
}
var length = (int)Math.Floor(Height * (offsetYBottom - offsetYTop));
var asixDescStartPointY = (int)Math.Floor(Height * offsetYBottom) - (int)(koef * length);
var asixDescEndPointY = (int)Math.Floor(Height * offsetYBottom) - (int)(koef * length);
_canvas.DrawLine(new SKPoint(asixDescStartPointX, asixDescStartPointY), new SKPoint(asixDescEndPointX, asixDescEndPointY), AsixYPaint);
// Popisky
var lengthDesc = yAsix.MaxValue - yAsix.MinValue;
var label = (yAsix.MinValue + koef * lengthDesc).ToString("#0");
int x;
int y;
SKRect bounds = new SKRect();
AsixYPaint.TextSize = (i == minIndex || i == maxIndex) ? AsixYTextSizeBig : AsixYTextSize;
AsixYPaint.MeasureText(label, ref bounds);
if (yAsix.Location == Location.Left)
{
x = asixDescStartPointX - (int)(bounds.Width);
y = asixDescStartPointY - (int)bounds.Top + separatorLength;
}
else
{
x = asixDescEndPointX;
y = asixDescStartPointY - (int)bounds.Top + separatorLength;
}
_canvas.DrawText(label, x, y, AsixYPaint);
}
// Popiska osy
if (!string.IsNullOrEmpty(yAsix.Label))
{
_canvas.Save();
int x;
int y;
SKRect bounds = new SKRect();
TitlePaint.MeasureText(yAsix.Label, ref bounds);
if (yAsix.Location == Location.Left)
{
x = (int)-bounds.Top;
y = (Height / 2) + (int)bounds.Width / 2;
_canvas.RotateDegrees(270, x, y);
}
else
{
x = Width + (int)bounds.Top;;
y = (Height / 2) - (int)bounds.Width / 2;
_canvas.RotateDegrees(90, x, y);
}
_canvas.DrawText(yAsix.Label, x, y, TitlePaint);
_canvas.Restore();
}
}
}