public override void OnPaint(IGUIContext ctx, RectangleF bounds)
{
base.OnPaint(ctx, bounds);
bounds.Inflate(-Padding.Width, -Padding.Height);
bounds.Offset(Padding.Left, Padding.Top);
PointF CenterPoint = new PointF(
bounds.Left + (bounds.Width / 2f),
bounds.Top + (bounds.Height / 2f));
float pieRadius = Radius - Math.Max(2, (Radius / 10f));
// for smoothness, any better idea ?
using (Pen pen = new Pen(Color.Gray, 3f)) {
ctx.DrawCircle(pen, CenterPoint.X, CenterPoint.Y, Radius - 1.5f);
}
using (Brush brush = new SolidBrush(Style.BorderColorPen.Color)) {
ctx.FillCircle(brush, CenterPoint.X, CenterPoint.Y, Radius - 0.5f);
}
Color dataColor;
if (!Enabled)
{
dataColor = Theme.Colors.Base1;
}
else if (CustomColor != Color.Empty)
{
dataColor = CustomColor;
}
else
{
dataColor = Theme.GetContextColor(ColorContext);
}
using (Brush dataBrush = new SolidBrush(dataColor)) {
ctx.FillPie(dataBrush,
CenterPoint.X,
CenterPoint.Y,
pieRadius,
pieRadius,
0, 360f * Value / (MaxValue - MinValue));
}
ctx.FillCircle(Style.BackColorBrush, CenterPoint.X, CenterPoint.Y, Radius * 0.5f);
ctx.DrawString((Value * 100f).ToString("n0") + "%", Font, Style.ForeColorBrush,
bounds, FontFormat.DefaultSingleLineCentered);
}
public override void PaintBackground(IGUIContext ctx, Widget widget)
{
RectangleF bounds = widget.Bounds;
bounds.Offset(-1, -1);
float radius = bounds.Width / 2f;
// this is not the final wisdom..
//PointF center = new PointF (bounds.Left + radius - widget.Margin.Left, bounds.Top + radius - widget.Margin.Top);
PointF center = new PointF(bounds.Left + radius, bounds.Top + radius);
radius -= 2f;
if (BackColorBrush.Color != Color.Empty)
{
ctx.FillCircle(BackColorBrush, center.X, center.Y, radius);
}
if (BorderColorPen.Color != Color.Empty && BorderColorPen.Width > 0)
{
ctx.DrawCircle(BorderColorPen, center.X, center.Y, radius);
}
}