public override void OnLeftMouseButtonDown(OverlayShape item, Point p, TEMouseArgs e)
{
if (!EnsureParseTreeExists())
{
return;
}
overlay.BeginUpdate();
overlay.SetCorrectRaster(overlay.CurEditing, true);
//Point p = new Point(e.GetPosition(canvas1).X, Height - e.GetPosition(canvas1).Y);
p = overlay.Rasterizer.RasterizePixelToTikz(p);
if (ContinueWithBigImage(p) == false)
{
return;
}
// find next tikzpicture and add
Parser.Tikz_Picture tpict = overlay.ParseTree.GetTikzPicture();
if (tpict != null)
{
Parser.Tikz_Node tn = new Parser.Tikz_Node();
tn.label = "";
tn.coord = new Parser.Tikz_Coord();
if (overlay.NodeStyle != "")
{
tn.options = "[" + overlay.NodeStyle + "]";
}
Parser.Tikz_Path tp = new Parser.Tikz_Path();
tp.starttag = @"\node ";
tp.endtag = ";";
tp.AddChild(tn);
if (overlay.CurEditing != null)
{
overlay.CurEditing.tikzitem.AddChild(tp);
overlay.CurEditing.tikzitem.AddChild(new Parser.Tikz_Something("\r\n"));
}
else
{
tpict.AddChild(tp);
tpict.AddChild(new Parser.Tikz_Something("\r\n"));
}
// do it here since the coordinate calculation needs the parents' coord. transform
tn.SetAbsPos(new Point(p.X, p.Y)); //hack
//tn.UpdateText();
tp.UpdateText();
//tpict.UpdateText();
//RedrawObjects();
overlay.AddToDisplayTree(tp);
}
overlay.EndUpdate();
}
protected virtual bool EnsureCurAddToExists(out bool created)
{
created = false;
if (overlay.ParseTree == null)
{
return(false);
}
// find tikzpicture
Parser.Tikz_Picture tpict = overlay.ParseTree.GetTikzPicture();
if (tpict == null)
{
if (overlay.AllowEditing)
{
// add a new tikzpicture
Tikz_Picture tp = new Tikz_Picture();
tp.starttag = "\\begin{tikzpicture}";
tp.AddChild(new Tikz_Something("\r\n"));
tp.endtag = "\\end{tikzpicture}";
//overlay.BeginUpdate();
overlay.ParseTree.AddChild(tp);
tp.UpdateText();
//overlay.EndUpdate();
}
else
{
return(false);
}
}
if (curAddTo == null || !(curAddTo is Parser.Tikz_Path))
{
created = AddNewCurAddTo();
}
return(true);
}
