protected override bool OnExposeEvent(Gdk.EventExpose evnt)
{
base.OnExposeEvent(evnt);
Gdk.Rectangle expose = Allocation;
Gdk.Color save = Gdk.Color.Zero;
bool hasFgColor = false;
int x = 1;
// Make sure that the row has not been removed inbetween.
// If the model is a TreeStore, it can do the validation for us, otherwise we need to validate the path.
if ((treeStore != null && treeStore.IterIsValid(iter) == false) || !tree.Model.GetIter(out iter, path))
{
GtkUtil.HideTooltip(tree);
return(true);
}
col.CellSetCellData(tree.Model, iter, false, false);
foreach (CellRenderer cr in col.CellRenderers)
{
if (!cr.Visible)
{
continue;
}
if (cr is CellRendererText)
{
hasFgColor = ((CellRendererText)cr).GetCellForegroundSet();
save = ((CellRendererText)cr).ForegroundGdk;
((CellRendererText)cr).ForegroundGdk = Style.Foreground(State);
}
int sp, wi, he, xo, yo;
col.CellGetPosition(cr, out sp, out wi);
Gdk.Rectangle bgrect = new Gdk.Rectangle(x, expose.Y, wi, expose.Height - 2);
cr.GetSize(tree, ref bgrect, out xo, out yo, out wi, out he);
int leftMargin = (int)((bgrect.Width - wi) * cr.Xalign);
int topMargin = (int)((bgrect.Height - he) * cr.Yalign);
Gdk.Rectangle cellrect = new Gdk.Rectangle(bgrect.X + leftMargin, bgrect.Y + topMargin + 1, wi, he);
cr.Render(this.GdkWindow, this, bgrect, cellrect, expose, CellRendererState.Focused);
x += bgrect.Width + col.Spacing + 1;
if (cr is CellRendererText)
{
((CellRendererText)cr).ForegroundGdk = save;
((CellRendererText)cr).SetCellForegroundSet(hasFgColor);
}
}
return(true);
}
protected override bool OnLeaveNotifyEvent(Gdk.EventCrossing evnt)
{
MouseIsOver = false;
GtkUtil.HideTooltip(tree);
return(base.OnLeaveNotifyEvent(evnt));
}