public override void Draw(NVGcontext ctx)
{
if (Radius == 0)
{
return;
}
NanoVG.nvgBeginPath(ctx);
NanoVG.nvgCircle(ctx, X, Y, Radius);
NanoVG.nvgStroke(ctx);
}
private void RenderConnector(Connection connection)
{
NanoVG.nvgSave(MainWindow.Nvg);
var pickedForDeletion =
_window.Selection.HoveringConnection == connection && _window.Keyboard[Key.ShiftLeft];
var bound = connection.GetBounds();
var r = bound.Radius;
var twor = 2 * r;
var halfr = r / 2;
const int cxnBorderWidth = 2;
NanoVG.nvgFillColor(MainWindow.Nvg, Color.White.ToNvgColor());
NanoVG.nvgSave(MainWindow.Nvg);
if (connection != TextBoxHandler.EditingConnection)
{
switch (connection.Side)
{
case NodeSide.Input:
NanoVG.nvgTranslate(MainWindow.Nvg, bound.X + twor, bound.Y - r);
NvgHelper.RenderString(connection.Text);
break;
case NodeSide.Output:
var s = connection.Text;
NanoVG.nvgTranslate(MainWindow.Nvg, bound.X - twor - NvgHelper.MeasureString(s).Width, bound.Y - r);
NvgHelper.RenderString(s);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
else
{
TextBoxHandler.TextBox.RenderBackground();
TextBoxHandler.TextBox.RenderForeground();
}
NanoVG.nvgRestore(MainWindow.Nvg);
NanoVG.nvgFillColor(MainWindow.Nvg, Color.DarkSlateGray.ToNvgColor());
NanoVG.nvgBeginPath(MainWindow.Nvg);
NanoVG.nvgCircle(MainWindow.Nvg, bound.X, bound.Y, r + cxnBorderWidth);
NanoVG.nvgFill(MainWindow.Nvg);
NanoVG.nvgFillColor(MainWindow.Nvg, connection.Side == NodeSide.Input ? Color.DeepSkyBlue.ToNvgColor() : Color.LimeGreen.ToNvgColor());
NanoVG.nvgBeginPath(MainWindow.Nvg);
NanoVG.nvgCircle(MainWindow.Nvg, bound.X, bound.Y, r);
NanoVG.nvgFill(MainWindow.Nvg);
NanoVG.nvgBeginPath(MainWindow.Nvg);
if (_window.Selection.HoveringConnection != null && _window.Selection.DraggingConnection == connection &&
_window.Selection.HoveringConnection.Side != _window.Selection.DraggingConnection.Side)
{
NanoVG.nvgFillColor(MainWindow.Nvg, Color.SlateGray.ToNvgColor());
}
else if (connection.ConnectedNode != null)
{
NanoVG.nvgFillColor(MainWindow.Nvg, Color.DarkSlateGray.ToNvgColor());
}
NanoVG.nvgCircle(MainWindow.Nvg, bound.X, bound.Y, halfr);
NanoVG.nvgFill(MainWindow.Nvg);
if (pickedForDeletion)
{
NanoVG.nvgFillColor(MainWindow.Nvg, Color.Red.ToNvgColor());
NanoVG.nvgBeginPath(MainWindow.Nvg);
NanoVG.nvgCircle(MainWindow.Nvg, bound.X, bound.Y, halfr);
NanoVG.nvgFill(MainWindow.Nvg);
}
NanoVG.nvgRestore(MainWindow.Nvg);
}