private void OnPlotSelectionChanged(object o, EventArgs args)
{
if (freeze_selection)
{
return;
}
LinePlot p = o as LinePlot;
if (p == null)
{
return;
}
TreeIter iter;
TreeModel model;
if (!p.GetSelected(out model, out iter))
{
UnselectAll();
return;
}
int x, y;
GetPlotPoint(p, iter, out x, out y);
x -= Allocation.X;
y -= Allocation.Y;
SelectPointsNear(p, x, y, false);
}
public void Draw(Cairo.Context cr)
{
if (Allocation.Width == 0 &&
Allocation.Height == 0)
{
return;
}
if (x_axis == null || y_axis == null)
{
return;
}
int selection_x = -1;
if (has_selection && selected_plots.Count > 0)
{
// get the x of the first focused point, and
// then draw a line from top to bottom
// connecting all focused points
LinePlot first_plot = (LinePlot)selected_plots[0];
TreeIter iter;
TreeModel model;
first_plot.GetSelected(out model, out iter);
int x, y;
GetPlotPoint(first_plot, iter, out x, out y);
style.DrawLinkedSelectionLine(cr, x, Allocation.Y,
x, Allocation.Y + Allocation.Height);
selection_x = x;
}
if (has_focus && focused_plots.Count > 0)
{
// get the x of the first focused point, and
// then draw a line from top to bottom
// connecting all focused points
LinePlot first_plot = (LinePlot)focused_plots[0];
TreeIter iter;
TreeModel model;
first_plot.GetFocused(out model, out iter);
int x, y;
GetPlotPoint(first_plot, iter, out x, out y);
if (x != selection_x)
{
style.DrawLinkedFocusLine(cr, x, Allocation.Y,
x, Allocation.Y + Allocation.Height);
}
}
foreach (LinePlot plot in plots)
{
plot.SizeAllocate(Allocation);
plot.SetAxes(axes);
plot.Draw(cr);
}
}
