/// <summary>
/// Tries to find the referencable node (with a name) corresponding to a given coordinate.
/// If no such node exists, null is returned.
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public static Tikz_Node GetReferenceableNode(Tikz_XYItem item, Tikz_Picture tpict)
{
if (item == null || tpict == null)
{
return(null);
}
if (item is Tikz_Node)
{
Tikz_Node n = item as Tikz_Node;
if (n.name == null || n.name.Trim() == "")
{
return(null);
}
else
{
return(n);
}
}
else if (item is Tikz_Coord || item is Tikz_Arc)
{
// 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)
{
Tikz_Node n = item.parent.Children[i] as Tikz_Node;
// check if the node is really at the same position as the coordinate item
if (n.coord == null)
{
if (n.name != null && n.name.Trim() != "")
{
return(n);
}
continue;
}
else
{
return(null);
}
}
if (!(item.parent.Children[i] is Tikz_Something))
{
break;
}
}
// if we get here, nothing was found
return(null);
}
else
{
return(null);
//throw new NotImplementedException("MakeReferenceableNode not implemented for this type");
}
}
/// <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");
}
}
/// <summary>
/// Recursive function to scan the parsetree in a depth first manner.
/// nodelist contains the current map from _old_ nodenames to nodes. it is used to update node references
/// </summary>
private static void ScanTree(TikzContainerParseItem tc, Dictionary <string, Tikz_Node> nodelist, Tikz_Picture tp)
{
foreach (var tpi in tc.Children)
{
if (tpi is Tikz_Node)
{
Tikz_Node tn = tpi as Tikz_Node;
if (tn.name != null && tn.name.Trim() != "")
{
string name = CleanName(tn.name.Trim());
// remember the node with its old name (all coordinates referring to this name henceforth will be changed to the new name
nodelist[name] = tn;
if (tp.nodelist.ContainsKey(name))
{
// we have to change the name
tn.name = UniquefyName(name, tp);
tn.UpdateText();
}
tn.RegisterNodeAndStyleRefs();
}
}
else if (tpi is Tikz_Coord)
{
Tikz_Coord tco = tpi as Tikz_Coord;
if (tco.type == Tikz_CoordType.Named)
{
string nameref = CleanName(tco.nameref);
if (nodelist.ContainsKey(nameref))
{
if (CleanName(nodelist[nameref].name) != nameref)
{
tco.nameref = CleanName(nodelist[nameref].name);
tco.UpdateText();
}
}
}
}
else if (tpi is TikzContainerParseItem)
{
ScanTree(tpi as TikzContainerParseItem, nodelist, tp);
}
}
}
public void ParseTest4()
{
string code =
@"%some text
\begin{tikzpicture}[scale=2]
\draw (1,2) node (v) {bla} -- (3,3);
\end{tikzpicture}
";
Tikz_ParseTree actual = TikzParser.Parse(code);
Tikz_Picture tp = actual.GetTikzPicture();
Tikz_Node n = tp.GetNodeByName("v");
System.Windows.Point p;
bool ret = n.GetAbsPos(out p);
Assert.IsTrue(ret);
Assert.AreEqual(2, p.X);
Assert.AreEqual(4, p.Y);
Assert.AreEqual("bla", n.label);
}
public override void OnLeftMouseButtonUp(Point p, TEMouseArgs e)
{
// add the rectangle
if (PreviewRect.Visible)
{
if (!EnsureParseTreeExists())
{
return;
}
Point firstpoint = overlay.ScreenToTikz(origin, true);
Point secondpoint = overlay.Rasterizer.RasterizePixelToTikz(p);
double angle = -Helper.RotationFromMatrix(overlay.Rasterizer.View.CoordinateTransform);
TikzMatrix R = TikzMatrix.RotationMatrix(angle);
TikzMatrix RI = R.Inverse();
Point firstpointR = R.Transform(firstpoint), secondpointR = R.Transform(secondpoint);
if (ForcePointsBLTR)
{
// ensure first pt is bottom left, second top right
Rect r = new Rect(firstpointR, secondpointR);
firstpointR = r.TopLeft; // note that we use upside down coordinates, so the c# notations are different
secondpointR = r.BottomRight;
firstpoint = RI.Transform(firstpointR);
secondpoint = RI.Transform(secondpointR);
}
if (overlay.KeyboardModifiers.HasFlag(TEModifierKeys.Control))
{
// both sides the same
double sidelength = Math.Max(Math.Abs(firstpointR.X - secondpointR.X), Math.Abs(firstpointR.Y - secondpointR.Y));
secondpointR = new Point(
firstpointR.X + Math.Sign(secondpointR.X - firstpointR.X) * sidelength,
firstpointR.Y + Math.Sign(secondpointR.Y - firstpointR.Y) * sidelength);
secondpoint = RI.Transform(secondpointR);
}
overlay.BeginUpdate();
if (AddNewCurAddTo())
{
Parser.Tikz_Coord tc1 = new Parser.Tikz_Coord();
tc1.type = overlay.UsePolarCoordinates? Parser.Tikz_CoordType.Polar : Parser.Tikz_CoordType.Cartesian;
Parser.Tikz_Coord tc2 = new Parser.Tikz_Coord();
tc2.type = overlay.UsePolarCoordinates ? Parser.Tikz_CoordType.Polar : Parser.Tikz_CoordType.Cartesian;
curAddTo.AddChild(new Parser.Tikz_Something(" "));
curAddTo.AddChild(tc1);
curAddTo.AddChild(new Parser.Tikz_Something(codeToInsert));
curAddTo.AddChild(tc2);
if (originRef == null)
{
tc1.SetAbsPos(firstpoint);
}
else
{
Tikz_Node tn = MakeReferenceableNode((originRef as OverlayNode).tikzitem);
tc1.type = Tikz_CoordType.Named;
tc1.nameref = tn.name;
}
OverlayShapeVM hit = overlay.ObjectAtCursor;
if ((hit is OverlayNode) && IsReferenceable(hit as OverlayNode))
{
Tikz_Node tn = MakeReferenceableNode((hit as OverlayNode).tikzitem);
tc2.type = Tikz_CoordType.Named;
tc2.nameref = tn.name;
}
else
{
tc2.SetAbsPos(secondpoint);
}
// overlay.AddToDisplayTree(tc1);
// overlay.AddToDisplayTree(tc2);
curAddTo.UpdateText();
}
overlay.EndUpdate();
PreviewRect.Visible = false;
}
}
public override void OnLeftMouseButtonUp(Point p, TEMouseArgs e)
{
// add the rectangle
if (PreviewEllipse.Visible)
{
if (!EnsureParseTreeExists())
{
return;
}
Point center = overlay.ScreenToTikz(origin, true);
Point secondpoint = overlay.Rasterizer.RasterizePixelToTikz(p); // in axis aligned (untranformed) tikz coordinates
// compute rotated diagonal
double angle = -Helper.RotationFromMatrix(overlay.Rasterizer.View.CoordinateTransform);
TikzMatrix R = TikzMatrix.RotationMatrix(angle);
Vector newdiag = R.Transform(secondpoint - center);
double width = Math.Abs(newdiag.X), // actually half the width/height!
height = Math.Abs(newdiag.Y);
if (overlay.KeyboardModifiers.HasFlag(TEModifierKeys.Control))
{
width = height = Math.Max(width, height);
}
overlay.BeginUpdate();
if (AddNewCurAddTo())
{
Parser.Tikz_Coord tc1 = new Parser.Tikz_Coord();
tc1.type = overlay.UsePolarCoordinates ? Parser.Tikz_CoordType.Polar : Parser.Tikz_CoordType.Cartesian;
curAddTo.AddChild(new Parser.Tikz_Something(" "));
curAddTo.AddChild(tc1);
// since there might be a coordinate tranform, the width/height have to be transformed
// (note: rotates are not very well supported here)
TikzMatrix M;
if (curAddTo.GetCurrentTransformAt(tc1, out M))
{
R = R.Inverse();
Point size_trans = M.Inverse().Transform(R.Transform(new Point(width, height)), true);
width = size_trans.X;
height = size_trans.Y;
}
else
{
GlobalUI.UI.AddStatusLine(this, "Warning: Couldn't compute tranform at insertion position. Coordinates might be wrong.", true);
}
width = Math.Round(width, (int)CompilerSettings.Instance.RoundToDecimals);
height = Math.Round(height, (int)CompilerSettings.Instance.RoundToDecimals);
if (overlay.KeyboardModifiers.HasFlag(TEModifierKeys.Control) && width == height)
{
curAddTo.AddChild(new Parser.Tikz_Something(" circle (" + width + ")"));
}
else
{
curAddTo.AddChild(new Parser.Tikz_Something(" ellipse (" + width + " and " + height + ")"));
}
if (originRef == null)
{
tc1.SetAbsPos(center);
}
else
{
Tikz_Node tn = MakeReferenceableNode((originRef as OverlayNode).tikzitem);
tc1.type = Tikz_CoordType.Named;
tc1.nameref = tn.name;
}
// overlay.AddToDisplayTree(tc1);
curAddTo.UpdateText();
}
overlay.EndUpdate();
PreviewEllipse.Visible = false;
}
}
/// <summary>
/// Draws the TikzParseItem tpi, if it is drawn, or its children, if they can be drawn,
/// or grandchildren etc..., and adds the drawn items to bag.
/// </summary>
/// <param name="tpi"></param>
/// <param name="bag"></param>
public void DrawObject(TikzParseItem tpi, List <OverlayShape> bag)
{
//BBGatherer bbg = new BBGatherer();
if (bag == null)
{
bag = new List <OverlayShape>(); // dummy, it is not used
}
if (tpi is Tikz_Scope)
{
OverlayScope os = new OverlayScope(ShapeFactory.NewScopeView());
os.pol = this;
os.tikzitem = tpi as Tikz_Scope;
foreach (TikzParseItem t in (tpi as TikzContainerParseItem).Children)
{
DrawObject(t, os.children);
}
// don't draw scopes with no drawable children
// (we don't know where to render them)
if (os.children.Count > 0)
{
bag.Add(os);
os.AdjustPosition(Resolution);
////canvas1.Children.Add(os);
}
}
else if (tpi is TikzContainerParseItem)
{
foreach (TikzParseItem t in (tpi as TikzContainerParseItem).Children)
{
DrawObject(t, bag);
}
}
if (tpi is Tikz_XYItem)
{
if ((tpi as Tikz_XYItem).HasEditableCoordinate())
{
OverlayNode el;
if (tpi.parent is Tikz_Controls)
{
el = new OverlayControlPoint(ShapeFactory.NewCPView()); // control points for Bezier curves
}
else
{
el = new OverlayNode(ShapeFactory.NewNodeView());
}
el.pol = this;
el.tikzitem = tpi as Tikz_XYItem;
//Ellipse el = new Ellipse();
//el.Stroke = Brushes.Red;
el.AdjustPosition(Resolution);
// add tooltip
Tikz_Node nref = TikzParseTreeHelper.GetReferenceableNode(tpi as Tikz_XYItem, ParseTree.GetTikzPicture());
if (nref != null && nref.name != "")
{
el.View.SetToolTip(nref.name);
}
////canvas1.Children.Add(el);
bag.Add(el);
//bbg.Add(new Rect(Canvas.GetLeft(el), Canvas.GetTop(el), el.Width, el.Height));
}
}
else if (tpi is Tikz_Path)
{
//could this be a possibility to show edges and provide backward search?
//there are many possibility for draw commands. here we
/* string simpleEdge_RegexString = @"[ \t\s]*\\draw.*\((?<start>.*)\).*\((?<end>.*)\).*";
* Regex BB_Regex = new Regex(simpleEdge_RegexString);
* Match m = BB_Regex.Match(tpi.ToString());
* if (m.Success == true)
* {
* //we just found a LaTex draw cmd, e.g.: \draw[default_edge] (v91) to (v99);
*
* //get both nodes
* Tikz_Node StartNode = tpi.parent.GetNodeByName(m.Groups[1].Value);
* Tikz_Node EndNode = tpi.parent.GetNodeByName(m.Groups[2].Value);
*
* if (StartNode != null && EndNode != null)
* {
* //and determine the position in between both nodes
* Point start, end;
* if (StartNode.GetAbsPos()
* double x = (StartNode.GetAbsPos().X + EndNode.GetAbsPos().X) / 2;
* double y = (StartNode.GetAbsPos().Y + EndNode.GetAbsPos().Y) / 2;
*
* //draw an arrow at this pos.
* //(new Point(x, y));
* //and when clicked, jump to AvalonEdit at position tpi.StartPosition
* }
*
* } */
}
}
public void AssignStyle(AssignStyleType type)
{
string cStyle = NodeStyle;
Tikz_Picture tp = ParseTree.GetTikzPicture();
if (tp == null)
{
return;
}
if (View.Tool != OverlayToolType.move)
{
return; // context menu should actually only open with move tool,... but to be safe against later changes...
}
if (type == AssignStyleType.AssignNewStyle || type == AssignStyleType.ChangeToNewStyle)
{
if (Overlay.InputMessageBox.ShowInputDialog("New style...", "Please enter a unique style name", out cStyle) != MessageBoxResult.OK)
{
return;
}
cStyle = cStyle.Trim();
// check if style name is valid and unique
if (ParseTree == null || cStyle == "")
{
return;
}
if (ParseTree.styles.ContainsKey(cStyle))
{
GlobalUI.ShowMessageBox("Error: Style name '" + cStyle + "' already exists.", "Style exists", MessageBoxButton.OK, MessageBoxImage.Warning);
return;
}
// add new style, immediately before \begin{tikzpicture}[...]
BeginUpdate();
Tikz_Option to = new Tikz_Option();
to.type = Tikz_OptionType.style;
to.key = cStyle;
to.val = "";
to.text = "\\tikzstyle{" + cStyle + "}=[];";
int index = ParseTree.Children.IndexOf(tp);
if (index >= 0)
{
ParseTree.InsertChildAt(to, index);
to.RegisterNodeAndStyleRefs();
ParseTree.InsertChildAt(new Tikz_Something(Environment.NewLine), index + 1);
}
}
else
{
if (cStyle.Trim() == "")
{
return;
}
BeginUpdate();
}
// loop through selected items and set styles
foreach (OverlayShape ols in selectionTool.SelItems)
{
// currently only node styles can be set
if (ols.item is Tikz_Node)
{
Tikz_Node tn = ols.item as Tikz_Node;
if (tn.options == "" || type == AssignStyleType.ChangeToCurrentNodeStyle || type == AssignStyleType.ChangeToNewStyle)
{
tn.options = "[" + cStyle + "]";
}
else // just add option
{
string o = tn.options.Trim();
if (o.EndsWith("]"))
{
o = o.Substring(0, o.Length - 1);
o = o + ", " + cStyle + "]";
} // otherwise, do nothing (error)
tn.options = o;
}
tn.UpdateText();
}
}
EndUpdate(); // Make sure EndUpdate() is always called (..if Beginupdate() was)!
}
Tikz_Option smoothOption; // this has to be changed to smooth cycle for closed curve
public override void OnLeftMouseButtonDown(OverlayShape item, Point p, TEMouseArgs e)
{
if (!EnsureParseTreeExists())
{
return;
}
p = overlay.Rasterizer.RasterizePixelToTikz(p);
if (ContinueWithBigImage(p) == false)
{
return;
}
overlay.BeginUpdate();
overlay.SetCorrectRaster(overlay.CurEditing, true);
//Point p = new Point(e.GetPosition(canvas1).X, Height - e.GetPosition(canvas1).Y);
// find tikzpicture and add
bool lcreated;
if (EnsureCurAddToExists(out lcreated))
{
// on double click -> close path
if (e.ClickCount == 2)
{
if (!lcreated)
{
smoothOption.key = "smooth cycle";
smoothOption.UpdateText();
}
}
else
{
if (!lcreated)
{
// for prettier formatting
curAddTo.AddChild(new Parser.Tikz_Something(" "));
}
// create new coordinate
Parser.Tikz_Coord tc = new Parser.Tikz_Coord();
tc.type = overlay.UsePolarCoordinates ? Parser.Tikz_CoordType.Polar : Parser.Tikz_CoordType.Cartesian;
curAddTo.AddChild(tc);
if (item is OverlayNode && IsReferenceable(item))
{
Tikz_Node tn = MakeReferenceableNode((item as OverlayNode).tikzitem);
tc.type = Tikz_CoordType.Named;
tc.nameref = tn.name;
}
else
{
// do it here since the coordinate calculation needs the parents' coord. transform
tc.SetAbsPos(new Point(p.X, p.Y));
}
//tn.UpdateText();
curAddTo.UpdateText();
//tpict.UpdateText();
// draw the added object in the overlay
overlay.AddToDisplayTree(tc);
}
}
overlay.EndUpdate();
// doubleclick also stops path drawing
if (e.ClickCount == 2)
{
overlay.ActivateDefaultTool();
}
}
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);
}
public override void OnLeftMouseButtonDown(OverlayShape item, Point p, TEMouseArgs e)
{
if (!EnsureParseTreeExists())
{
return;
}
p = overlay.Rasterizer.RasterizePixelToTikz(p);
if (ContinueWithBigImage(p) == false)
{
return;
}
overlay.BeginUpdate();
//overlay.SetCorrectRaster(overlay.CurEditing, true);
UpdateRaster();
//Point p = new Point(e.GetPosition(canvas1).X, Height - e.GetPosition(canvas1).Y);
// find next tikzpicture and add
bool lcreated;
if (EnsureCurAddToExists(out lcreated))
{
// on double click -> close path
if (e.ClickCount == 2)
{
if (!lcreated)
{
//if (!Keyboard.Modifiers.HasFlag(ModifierKeys.Control))
curAddTo.AddChild(new Parser.Tikz_Something(" -- cycle"));
//else
// curAddTo.AddChild(new Parser.Tikz_Something(" cycle"));
}
}
else
{
if (!lcreated)
{
if (!overlay.KeyboardModifiers.HasFlag(TEModifierKeys.Control))
{
// add an edge
curAddTo.AddChild(new Parser.Tikz_Something(" -- "));
}
else
{
curAddTo.AddChild(new Parser.Tikz_Something(" "));
}
}
// create new coordinate. If some node was clicked, set a reference to that node. Otherwise, just make new coordinates
Tikz_Coord tc = new Tikz_Coord();
curAddTo.AddChild(tc);
if (item is OverlayNode && IsReferenceable(item))
{
Tikz_Node tn = MakeReferenceableNode((item as OverlayNode).tikzitem);
tc.type = Tikz_CoordType.Named;
tc.nameref = tn.name;
}
else
{
// do it here since the coordinate calculation needs the parents' coord. transform
tc.type = overlay.UsePolarCoordinates ? Tikz_CoordType.Polar : Tikz_CoordType.Cartesian;
if (!lcreated)
{
tc.deco = overlay.NewNodeModifier; // first node should always be in absolute coordinates
}
tc.SetAbsPos(new Point(p.X, p.Y)); //hack
// if a nonempty node style is selected, also add a node with that style
if (overlay.NodeStyle.Trim() != "")
{
Tikz_Node tn = new Tikz_Node()
{
options = "[" + overlay.NodeStyle + "]",
coord = null,
text = ""
};
curAddTo.AddChild(new Tikz_Something(" "));
curAddTo.AddChild(tn);
}
}
//tn.UpdateText();
curAddTo.UpdateText();
//tpict.UpdateText();
// draw the added object in the overlay
overlay.AddToDisplayTree(tc);
}
}
overlay.EndUpdate();
UpdateRaster();
// doubleclick also stops path drawing
if (e.ClickCount == 2)
{
overlay.ActivateDefaultTool();
}
}
IEnumerable <OverlayShapeVM> CreateOverlayShapesFromItem(TikzParseItem tpi)
{
var ret = new List <OverlayShapeVM>();
if (tpi is Tikz_Scope)
{
OverlayScope os = new OverlayScope();
//os.pol = this;
os.tikzitem = tpi as Tikz_Scope;
// add child shapes
os.children.AddRange((tpi as TikzContainerParseItem).Children.SelectMany(child => CreateOverlayShapesFromItem(child)));
//foreach (TikzParseItem t in (tpi as TikzContainerParseItem).Children)
// DrawObject(t, os.children);
// don't draw scopes with no drawable children
// (we don't know where to render them)
if (os.children.Count > 0)
{
ret.Add(os);
os.AdjustPosition(TikzToScreen);
}
}
else if (tpi is TikzContainerParseItem)
{
ret.AddRange((tpi as TikzContainerParseItem).Children.SelectMany(child => CreateOverlayShapesFromItem(child)));
}
else if (tpi is Tikz_XYItem)
{
if ((tpi as Tikz_XYItem).HasEditableCoordinate())
{
OverlayNode el;
if (tpi.parent is Tikz_Controls)
{
el = new OverlayControlPoint(); // control points for Bezier curves
}
else
{
el = new OverlayNode();
}
//el.pol = this;
el.tikzitem = tpi as Tikz_XYItem;
el.AdjustPosition(TikzToScreen);
// add tooltip
if (ParseTree != null)
{
Tikz_Node nref = TikzParseTreeHelper.GetReferenceableNode(tpi as Tikz_XYItem, ParseTree.GetTikzPicture());
if (nref != null && !String.IsNullOrWhiteSpace(nref.name))
{
el.ToolTip = nref.name;
}
}
////canvas1.Children.Add(el);
ret.Add(el);
//bbg.Add(new Rect(Canvas.GetLeft(el), Canvas.GetTop(el), el.Width, el.Height));
}
}
else if (tpi is Tikz_Path)
{
}
return(ret);
}