/// <summary>
/// Takes an XYItem (like (2,2) or a node) and tries to make it into a referenceable node
/// (i.e, one with a name)
///
/// Concretely, the routine does the following:
/// - if item is a named node, return item.
/// - if item is an unnamed node, give it a unique name and return item.
/// - if item is a coordinate, see if there is a node at this coordinate
/// (algorithm: see if next non-tikz_something item is a node)
/// - if yes, start anew with item=this node
/// - if no, add a named node at the specified coordinate
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
protected Tikz_Node MakeReferenceableNode(Tikz_XYItem item)
{
Tikz_Picture tpict = overlay.ParseTree.GetTikzPicture();
if (item is Tikz_Node)
{
Tikz_Node n = item as Tikz_Node;
if (n.name == "")
{
n.SetName(tpict.GetUniqueName());
n.UpdateText();
}
return(n);
}
else if (item is Tikz_Coord)
{
// find the next node
for (int i = item.parent.Children.IndexOf(item) + 1; i < item.parent.Children.Count; i++)
{
if (item.parent.Children[i] is Tikz_Node)
{
// check if the node is really at the same position as the coordinate item
if ((item.parent.Children[i] as Tikz_Node).coord == null)
{
return(MakeReferenceableNode(item.parent.Children[i] as Tikz_Node));
}
else
{
break;
}
}
if (!(item.parent.Children[i] is Tikz_Something))
{
break;
}
}
// if we get here, nothing was found => add a new node
Tikz_Something ws = new Tikz_Something(" ");
Tikz_Node n = new Tikz_Node();
n.coord = null;
item.parent.InsertChildAt(ws, item.parent.Children.IndexOf(item) + 1);
item.parent.InsertChildAt(n, item.parent.Children.IndexOf(item) + 2);
n.SetName(tpict.GetUniqueName());
n.UpdateText();
return(n);
}
else
{
throw new NotImplementedException("MakeReferenceableNode not implemented for this type");
}
}
static void addSomething(TikzContainerParseItem item, CommonTokenStream tokens, int FirstToken, int LastToken)
{
if (LastToken - FirstToken < 0)
{
return;
}
Tikz_Something t = new Tikz_Something(getTokensString(tokens, FirstToken, LastToken));
item.AddChild(t);
}
static bool FillItem(TikzContainerParseItem item, CommonTree t, CommonTokenStream tokens)
{
int curToken = t.TokenStartIndex;
if (item is Tikz_ParseTree)
{
curToken = 0; // for root, start at the beginning
}
if (t.Children == null)
{
return(false);
}
foreach (CommonTree childt in t.Children)
{
addSomething(item, tokens, curToken, childt.TokenStartIndex - 1);
switch (childt.Type)
{
case simpletikzParser.IM_PICTURE:
Tikz_Picture tp = new Tikz_Picture();
FillItem(tp, childt, tokens);
item.AddChild(tp);
break;
case simpletikzParser.IM_STARTTAG:
item.starttag = getTokensString(tokens, childt.TokenStartIndex, childt.TokenStopIndex);
break;
case simpletikzParser.IM_ENDTAG:
item.endtag = getTokensString(tokens, childt.TokenStartIndex, childt.TokenStopIndex);
break;
case simpletikzParser.IM_PATH:
Tikz_Path tpath = new Tikz_Path();
FillItem(tpath, childt, tokens);
item.AddChild(tpath);
break;
case simpletikzParser.IM_SCOPE:
Tikz_Scope tscope = new Tikz_Scope();
FillItem(tscope, childt, tokens);
item.AddChild(tscope);
break;
case simpletikzParser.IM_COORD:
Tikz_Coord tc = Tikz_Coord.FromCommonTree(childt, tokens);
tc.text = getTokensString(tokens, childt);
item.AddChild(tc);
break;
case simpletikzParser.IM_ARC:
Tikz_Arc ta = Tikz_Arc.FromCommonTree(childt, tokens);
ta.text = getTokensString(tokens, childt);
item.AddChild(ta);
break;
case simpletikzParser.IM_NODE:
Tikz_Node tn = Tikz_Node.FromCommonTree(childt, tokens);
tn.text = getTokensString(tokens, childt);
item.AddChild(tn);
break;
case simpletikzParser.IM_OPTION_KV:
case simpletikzParser.IM_OPTION_STYLE:
Tikz_Option topt = Tikz_Option.FromCommonTree(childt, tokens);
if (topt == null)
{
break;
}
//topt.text = getTokensString(tokens, childt);
String s = getTokensString(tokens, childt);
topt.text = s;
item.AddChild(topt);
break;
case simpletikzParser.IM_OPTIONS:
//Tikz_Options to = Tikz_Options.FromCommonTree(childt);
Tikz_Options to = new Tikz_Options();
FillItem(to, childt, tokens);
item.AddChild(to);
//to.text = getTokensString(tokens, childt);
//item.AddChild(tn);
if (item.options == null)
{
// determine whether option belongs to the item (e.g. \draw [this belongs to draw] blabla [thisnot])
// i.e., the scope of the options is the whole item's body
// this is hacky
if (item.Children.Count == 1 ||
(item.Children.Count == 2 && (item.Children[0] is Tikz_Something) &&
item.Children[0].ToString().Trim() == ""))
{
item.options = to;
}
}
break;
case simpletikzParser.IM_TIKZSET:
Tikz_Options to2 = new Tikz_Options();
FillItem(to2, childt, tokens);
item.AddChild(to2);
break;
case simpletikzParser.IM_STYLE:
Tikz_Option topt2 = Tikz_Option.FromCommonTree(childt, tokens);
//FillItem(to2, childt, tokens);
topt2.text = getTokensString(tokens, childt);
item.AddChild(topt2);
break;
case simpletikzParser.IM_CONTROLS:
Tikz_Controls tcontrols = new Tikz_Controls();
FillItem(tcontrols, childt, tokens);
item.AddChild(tcontrols);
break;
case simpletikzParser.IM_SIZE:
Tikz_Size tsize = Tikz_Size.FromCommonTree(childt, tokens);
tsize.text = getTokensString(tokens, childt);
item.AddChild(tsize);
//Tikz_Size tsize = new Tikz_Size();
//item.AddChild(tsize);
break;
//case simpletikzParser.ID:
//case simpletikzParser.IM_STRING:
//case simpletikzParser.COMMAND:
//case simpletikzParser.T__57:
// break;
case simpletikzParser.IM_TIKZEDT_CMD:
Tikz_EdtCommand cmd = new Tikz_EdtCommand(getTokensString(tokens, childt));
item.AddChild(cmd);
break;
case simpletikzParser.IM_DONTCARE:
Tikz_Something st = new Tikz_Something(getTokensString(tokens, childt));
item.AddChild(st);
break;
default:
// getting here is an error
throw new Exception(" childt.Type not handled! " + childt.Type.ToString() + " (\"" + getTokensString(tokens, childt) + "\")");
//break;
}
curToken = childt.TokenStopIndex + 1;
}
if (t.TokenStartIndex >= 0) // rule out empty code
{
addSomething(item, tokens, curToken, t.TokenStopIndex);
}
return(true);
}
