/// <summary>
/// Gets a list of all descendants of the specified parent in the Display tree, including the parent itself.
/// </summary>
/// <param name="OfParent">The parent. If null, it is taken to be the root.</param>
/// <returns></returns>
public IEnumerable <OverlayShape> GetAllDescendants(OverlayShape OfParent = null)
{
IEnumerable <OverlayShape> src = null;
List <OverlayShape> ret = new List <OverlayShape>();
if (OfParent != null)
{
ret.Add(OfParent);
}
else
{
src = TopLevelItems;
}
if (OfParent is OverlayScope)
{
src = (OfParent as OverlayScope).children;
}
if (src != null)
{
ret.AddRange(src.SelectMany(os => GetAllDescendants(os)));
}
return(ret);
}
/// <summary>
/// Tries to display a ring around the object at text position
/// offset.
/// </summary>
/// <param name="offset">The text position.</param>
public void MarkObjectAt(int offset)
{
OverlayShape ols = ObjectFromOffset(offset, TopLevelItems);
if (ols != null)
{
View.MarkObject(ols.View);
}
}
/// <summary>
/// Adds an item to the list of selected items.
/// </summary>
/// <param name="o">The item to add.</param>
/// <param name="Exclusive">If Exclusive is set, all other items are unselected.</param>
public void AddItem(OverlayShape o, bool Exclusive = false)
{
if (Exclusive)
Clear(o);
if (!SelectedItems.Contains(o))
{
o.SetSelectedColor();
SelectedItems.Add(o);
}
}
public override void OnLeftMouseButtonDown(OverlayShape item, Point p, TEMouseArgs e)
{
if (item != null)
{
// initiate a drag/drop operation
curDragged = (OverlayShape)item;
DragOrigin = (new Point(item.View.GetLeft(), item.View.GetBottom()))-(Vector)p ;
////DragOrigin = e.GetPosition(item);
////DragOrigin = new Point(DragOrigin.X, (item as OverlayShape).Height - DragOrigin.Y);
DragOriginC = p;
DragOriginO = new Point(curDragged.View.GetLeft(), curDragged.View.GetBottom());
movedenough = false;
//MessageBox.Show(o.ToString());
// select the clicked shape
/* if (Keyboard.Modifiers.HasFlag(ModifierKeys.Control))
{
if (!ToggleItem(curDragged))
{
// unselected -> start no drag operation
curDragged = null;
}
}
else
{
AddItem(curDragged, !IsItemSelected(curDragged));
}*/
// adjust raster origin/scale/polar/cartesian
overlay.SetCorrectRaster(curDragged);
// for an arc, display preview
//if (curDragged.item is Tikz_Arc)
//{
FillNodesOnArc();
//check whether starting moving arc was successful
if (PreviewArc.Spokes == null)
{
SetCursorNo();
curDragged = null;
return;
}
AdjustPreviewPos(p);
PreviewArc.Visible = true;
//}
// capture mouse. this is important if the user drags sth. outside canvas1's bounds
if (curDragged != null)
overlay.MouseCaptured = true;
}
}
/// <summary>
/// This method searches recursively among all items in the displaytree for one whose associated code segment
/// contains the position offset. In case multiple items match, the deepest (in the tree) one is chosen.
/// E.g., if a scope contains a node, and the offset matches the node, it also also lies within the scope,
/// but the node is returned.
/// </summary>
/// <param name="offset">The code position.</param>
/// <param name="bag">Overlayshapes to search in.</param>
/// <returns></returns>
public OverlayShape ObjectFromOffset(int offset, List <OverlayShape> bag)
{
foreach (OverlayShape ols in bag)
{
if (ols.item.StartPosition() <= offset && ols.item.StartPosition() + ols.item.ToString().Length > offset)
{
// check if there is a child that fits better
if (ols is OverlayScope)
{
OverlayShape olsinner = ObjectFromOffset(offset, (ols as OverlayScope).children);
if (olsinner != null)
{
return(olsinner);
}
}
return(ols);
}
}
return(null);
}
public override void OnLeftMouseButtonDown(OverlayShape item, Point p, TEMouseArgs e)
{
// initiate drawing process
Point mousep = overlay.Rasterizer.RasterizePixel(p);
origin = new Point(mousep.X, overlay.Height - mousep.Y);
if (IsReferenceable(item))
originRef = item;
else
originRef = null;
PreviewRect.SetPosition(origin.X, origin.Y, 0,0);
// adjust rotation in case we are in a rotated frame
double angle = -Helper.RotationFromMatrix(overlay.Rasterizer.View.CoordinateTransform) * 180 / Math.PI;
PreviewRect.Rotation = angle;
////if (!overlay.canvas.Children.Contains(PreviewRect))
//// overlay.canvas.Children.Add(PreviewRect);
/////PreviewRect.Visibility = Visibility.Visible;
PreviewRect.Visible = true;
overlay.MouseCaptured = true;
}
public override void OnLeftMouseButtonDown(OverlayShape item, Point p, TEMouseArgs e)
{
if (!(item is OverlayNode))
{
curSel = null;
return;
}
OverlayNode n = item as OverlayNode;
// make sure a referenceable item is selected... otherwise we cannot add an edge
if (!IsReferenceable(item))
{
MainWindow.AddStatusLine("Only items that are referenceable (=can be given names) can be connected with the edge tool.");
return;
}
if (curSel == null)
{
curSel = n;
return;
}
// make sure both nodes involved are nodes
/* if (!(curSel.tikzitem is Tikz_Node) || !(n.tikzitem is Tikz_Node))
{
String which = ""; String verb = "is";
if (!(curSel.tikzitem is Tikz_Node) && !(n.tikzitem is Tikz_Node))
{ which = "Both"; verb = "are"; }
else if (!(curSel.tikzitem is Tikz_Node))
which = "The first";
else if (!(n.tikzitem is Tikz_Node))
which = "The second";
MainWindow.AddStatusLine(which + " of the selected coordinates " + verb + " not a node (i.e. not defined with \\node but rather with \\draw or \\path)", true);
curSel = null;
return; // hack
} */
//the return from above must not interfere with BeginModify()
overlay.BeginUpdate();
// add an edge curSel to n
//bool lcreated;
//if (EnsureCurAddToExists(out lcreated))
//always create new \draw command. otherwise it can happen that the \draw-command
//is above the \node-definition which causes an error while compiling the latex code.
if (AddNewCurAddTo())
{
// make sure both nodes involved have names
Parser.Tikz_Node t1 = MakeReferenceableNode(curSel.tikzitem ),
t2 = MakeReferenceableNode(n.tikzitem );
Parser.Tikz_Coord tc1 = new Parser.Tikz_Coord();
tc1.type = Parser.Tikz_CoordType.Named;
Parser.Tikz_Coord tc2 = new Parser.Tikz_Coord();
tc2.type = Parser.Tikz_CoordType.Named;
curAddTo.AddChild(new Parser.Tikz_Something(" "));
curAddTo.AddChild(tc1);
if (t1 == t2)
curAddTo.AddChild(new Parser.Tikz_Something(" edge[loop, looseness=20] "));
else
curAddTo.AddChild(new Parser.Tikz_Something(" edge "));
curAddTo.AddChild(tc2);
//tpict.AddChild(tp);
// make sure both nodes have names
/* Tikz_Picture tpict = overlay.ParseTree.GetTikzPicture();
if (t1.name == "")
{
t1.SetName(tpict.GetUniqueName());
t1.UpdateText();
}
if (t2.name == "")
{
t2.SetName(tpict.GetUniqueName());
t2.UpdateText();
}
*/
tc1.nameref = t1.name;
tc2.nameref = t2.name;
//tc1.UpdateText();
curAddTo.UpdateText();
//tpict.UpdateText();
// txtCode_TextChanged
//RedrawObjects();
//if (OnModified != null)
// OnModified.Invoke();
//edge was drawn. release currently selected node.
curSel = null;
//will neither want to path tool to start from this last select nodes.
curAddTo = null;
}
//forgetting to call EndModify causes weird "No undo group should be open at this point"-message.
overlay.EndUpdate();
}
public override void OnLeftMouseButtonUp(Point p, TEMouseArgs e)
{
if (PreviewArc.Spokes == null)
{
SetCursorDefault();
return;
}
PreviewArc.Visible = false;
// adjust position of dragged item (in parsetree)
if (curDragged != null && movedenough && curDragged.item is Tikz_XYItem)
{
overlay.BeginUpdate();
// determine the relative shift
Vector relshift = new Vector(curDragged.View.GetLeft() - DragOriginO.X, curDragged.View.GetBottom() - DragOriginO.Y);
Vector relshift_tikz = relshift / overlay.Resolution;
// compute new radius
Point pold;
(curDragged.item as Tikz_XYItem).GetAbsPos(out pold);
Point pnew = pold + relshift_tikz;
double Rnew = (pnew - center_tikz).Length;
// adjust all position accordingly...
for (int i=0;i<nodesOnArc.Count;i++)
{
Point newp = center_tikz + Rnew * (new Vector(Math.Cos(PreviewArc.Spokes[i]), Math.Sin(PreviewArc.Spokes[i])));
if (i == 0)
{
nodesOnArc[i].SetAbsPos(newp);
}
else
{
//if (nodesOnArc[i] == curDragged.item)
//(nodesOnArc[i] as Tikz_Arc).SetAbsPosRandPhi2(Rnew, PreviewArc.Spokes[i]);
(nodesOnArc[i] as Tikz_Arc).SetFromPoints(center_tikz, newp, PreviewArc.Spokes[i-1], PreviewArc.Spokes[i]);
//else
// (nodesOnArc[i] as Tikz_Arc).SetAbsPosOnlyR(newp);
}
nodesOnArc[i].UpdateText();
}
// set first angle of arc segment directly after curDragged
//if (curDraggedInd + 1 < nodesOnArc.Count)
//{
// (nodesOnArc[curDraggedInd + 1] as Tikz_Arc).SetAbsPosRandPhi1(pnew);
//}
// ShiftSelItemsInParseTree(relshift_tikz, overlay.TopLevelItems);
/*
Point pp = new Point(Canvas.GetLeft(curDragged) + curDragged.Width / 2, Canvas.GetBottom(curDragged) + curDragged.Height / 2);
pp = ScreenToTikz(pp);
if (curDragged is OverlayNode)
{
(curDragged as OverlayNode).tikzitem.SetAbsPos(pp);
(curDragged as OverlayNode).tikzitem.UpdateText();
}
else if (curDragged is OverlayScope)
{
Point pdiff = new Point(e.GetPosition(canvas1).X - DragOriginC.X, e.GetPosition(canvas1).Y - DragOriginC.Y);
pdiff = rasterizer.RasterizePixel(pdiff);
double xs = pdiff.X / Resolution, ys = -pdiff.Y / Resolution;
curDragged.ShiftItemRelative(pdiff);
}*/
// update all item's positions
foreach (OverlayShape o in overlay.TopLevelItems)
o.AdjustPosition(overlay.Resolution);
curDragged = null;
PreviewArc.Spokes = null;
overlay.EndUpdate();
}
else if (curDragged != null && curDragged.item is Tikz_XYItem)
{ //if not movedenough, reset all "moving variables" anyways
curDragged = null;
PreviewArc.Spokes = null;
}
}
public bool IsItemSelected(OverlayShape o)
{
return SelectedItems.Contains(o);
}
public override void OnRightMouseButtonDown(OverlayShape item, Point p, TEMouseArgs e)
{
//base.OnRightMouseButtonDown(item, p, e);
// if a node is selected, unselect it
if (curSel != null)
{
curSel = null;
e.Handled = true; // we don't want anything else to happen (contextmenu opening etc)
}
}
public override void OnLeftMouseButtonUp(Point p, TEMouseArgs e)
{
if (SelectionRect.Visible)
{
SelectionRect.Visible = false;
}
// adjust position of dragged item (in parsetree)
if (curDragged != null && movedenough)
{
overlay.BeginUpdate();
// determine the relative shift
Point relshift = new Point(curDragged.View.GetLeft() - DragOriginO.X, curDragged.View.GetBottom() - DragOriginO.Y);
Point relshift_tikz = new Point(relshift.X / overlay.Resolution, relshift.Y / overlay.Resolution);
ShiftSelItemsInParseTree(relshift_tikz, overlay.TopLevelItems);
/*
Point pp = new Point(Canvas.GetLeft(curDragged) + curDragged.Width / 2, Canvas.GetBottom(curDragged) + curDragged.Height / 2);
pp = ScreenToTikz(pp);
if (curDragged is OverlayNode)
{
(curDragged as OverlayNode).tikzitem.SetAbsPos(pp);
(curDragged as OverlayNode).tikzitem.UpdateText();
}
else if (curDragged is OverlayScope)
{
Point pdiff = new Point(e.GetPosition(canvas1).X - DragOriginC.X, e.GetPosition(canvas1).Y - DragOriginC.Y);
pdiff = rasterizer.RasterizePixel(pdiff);
double xs = pdiff.X / Resolution, ys = -pdiff.Y / Resolution;
curDragged.ShiftItemRelative(pdiff);
}*/
// update all item's positions
foreach (OverlayShape o in overlay.TopLevelItems)
o.AdjustPosition(overlay.Resolution);
// update raster in case it has changed
overlay.SetCorrectRaster(curDragged);
curDragged = null;
overlay.EndUpdate();
}
}
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();
}
public override void OnLeftMouseButtonDown(OverlayShape item, Point p, TEMouseArgs e)
{
if (!EnsureParseTreeExists())
return;
Point ptikz = overlay.Rasterizer.RasterizePixelToTikz(p);
p = overlay.Rasterizer.RasterizePixel(p);
if (ContinueWithBigImage(ptikz) == false)
return;
if (pointcount == 0)
{
//overlay.SetCorrectRaster(overlay.CurEditing, true);
center = ptikz;
// set raster to polar, and such that origin is at center
overlay.Rasterizer.View.IsCartesian = false;
TikzMatrix M = overlay.Rasterizer.View.CoordinateTransform;
M.m[0, 2] = center.X;
M.m[1, 2] = center.Y;
overlay.Rasterizer.View.CoordinateTransform = M;
pointcount = 1;
PreviewPie.center = PreviewArc.center = new Point(p.X, overlay.Height - p.Y);
////if (!overlay.canvas.Children.Contains(PreviewArc))
//// overlay.canvas.Children.Add(PreviewArc);
////if (!overlay.canvas.Children.Contains(PreviewPie))
//// overlay.canvas.Children.Add(PreviewPie);
}
else if (pointcount == 1)
{
p1 = ptikz;
pointcount = 2;
PreviewPie.p1 = PreviewArc.p2 = new Point(p.X, overlay.Height - p.Y);
// compute radius
TikzMatrix M = overlay.Rasterizer.View.CoordinateTransform;
Point ploc = M.Inverse().Transform(p1);
overlay.Rasterizer.View.ForceRadiusTo = (ploc - (new Point(0, 0))).Length;
}
else if (pointcount == 2)
{
// **** create arc / pie ****
overlay.BeginUpdate();
// find next tikzpicture and add
if (AddNewCurAddTo()) //(EnsureCurAddToExists(out lcreated))
{
// Pie?
if (IsPie)
{
// create new coordinate
Tikz_Coord tc = new Parser.Tikz_Coord();
tc.type = overlay.UsePolarCoordinates ? Parser.Tikz_CoordType.Polar : Parser.Tikz_CoordType.Cartesian;
curAddTo.AddChild(tc);
tc.SetAbsPos(center);
curAddTo.AddChild(new Parser.Tikz_Something(" -- "));
}
Tikz_Coord tc1 = new Parser.Tikz_Coord();
if (IsPie)
{
tc1.type = Tikz_CoordType.Polar;
tc1.deco = "++";
}
curAddTo.AddChild(tc1);
tc1.SetAbsPos(p1);
curAddTo.AddChild(new Parser.Tikz_Something(" "));
// create arc
Tikz_Arc ta = new Tikz_Arc();
curAddTo.AddChild(ta);
ta.SetFromPoints(center, ptikz, IsLargeArc);
if (IsPie)
curAddTo.AddChild(new Parser.Tikz_Something(" -- cycle"));
//tn.UpdateText();
curAddTo.UpdateText();
//tpict.UpdateText();
// draw the added object in the overlay
overlay.AddToDisplayTree(curAddTo);
}
overlay.EndUpdate();
// reset everything
pointcount = 0;
overlay.Rasterizer.View.ForceRadiusTo = -1;
overlay.SetCorrectRaster(overlay.CurEditing, true);
}
//Point p = new Point(e.GetPosition(canvas1).X, Height - e.GetPosition(canvas1).Y);
UpdatePreviewDisplay(p);
}
/// <summary>
/// The displayed raster changes depending on the currently selected object.
/// This method sets the raster, so as to fit the coordinate transformation at o.
/// There are two cases: (i) (IsParent=false) o is the object being modified, so the relevant coordinate trsf. is that at o
/// (ii) (IsParent=true) o is a parent object to which items are added.
/// In this case the relevant transf. is that at the end of o, since new items are inserted at the end.
/// </summary>
/// <param name="o">The object. If null, it is taken to be the tikzpicture.</param>
/// <param name="IsParent">Indicates whether object is to be moved itself, or children added.</param>
public void SetCorrectRaster(OverlayShape o, bool IsParent = false)
{
SetCorrectRaster(o == null ? null : o.item, IsParent);
}
void RemoveItem(OverlayShape o)
{
if (SelectedItems.Contains(o))
{
SelectedItems.Remove(o);
o.SetStdColor();
}
}
public void JumpToSourceDoIt(OverlayShape o)
{
View.JumpToSourceDoIt(o);
}
/// <summary>
/// The displayed raster changes depending on the currently selected object.
/// This method sets the raster, so as to fit the coordinate transformation at o.
/// There are two cases: (i) (IsParent=false) o is the object being modified, so the relevant coordinate trsf. is that at o
/// (ii) (IsParent=true) o is a parent object to which items are added.
/// In this case the relevant transf. is that at the end of o, since new items are inserted at the end.
/// </summary>
/// <param name="o">The object. If null, it is taken to be the tikzpicture.</param>
/// <param name="IsParent">Indicates whether object is to be moved itself, or children added.</param>
public void SetCorrectRaster(OverlayShape o, bool IsParent = false)
{
SetCorrectRaster(o == null ? null : o.item, IsParent);
}
/// <summary>
/// Gets a list of all descendants of the specified parent in the Display tree, including the parent itself.
/// </summary>
/// <param name="OfParent">The parent. If null, it is taken to be the root.</param>
/// <returns></returns>
public IEnumerable<OverlayShape> GetAllDescendants(OverlayShape OfParent = null)
{
IEnumerable<OverlayShape> src = null;
List<OverlayShape> ret = new List<OverlayShape>();
if (OfParent != null)
ret.Add(OfParent);
else src = TopLevelItems;
if (OfParent is OverlayScope)
src = (OfParent as OverlayScope).children;
if (src != null)
ret.AddRange( src.SelectMany( os => GetAllDescendants(os) ) );
return ret;
}
public override void OnLeftMouseButtonDown(OverlayShape item, Point p, TEMouseArgs e)
{
if (!EnsureParseTreeExists())
return;
Point prast = overlay.Rasterizer.RasterizePixel(p);
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 next tikzpicture and add
bool lcreated;
if (EnsureCurAddToExists(out lcreated))
{
{
// there are three states: (i) new path -> add coordinate
// (ii) add controlpoints
// (iii) 2 cps's added -> add bezier segment
if (CPCount == 2)
{
// add controls
Tikz_Controls tcont = new Tikz_Controls();
tcont.starttag = " .. controls ";
tcont.endtag = " ..";
Parser.Tikz_Coord tc1 = new Parser.Tikz_Coord(), tc2 = new Parser.Tikz_Coord(); // control points
tc1.type = tc2.type = overlay.UsePolarCoordinates ? Parser.Tikz_CoordType.Polar : Parser.Tikz_CoordType.Cartesian;
tcont.AddChild(tc1);
tcont.AddChild(new Tikz_Something(" and "));
tcont.AddChild(tc2);
curAddTo.AddChild(tcont);
// the endpoint
Parser.Tikz_Coord tcend = new Parser.Tikz_Coord();
tcend.type = overlay.UsePolarCoordinates ? Parser.Tikz_CoordType.Polar : Parser.Tikz_CoordType.Cartesian;
curAddTo.AddChild(new Tikz_Something(" "));
curAddTo.AddChild(tcend);
// do it here since the coordinate calculation needs the parents' coord. transform, and the second added point
tcend.SetAbsPos(p);
tc1.SetAbsPos(CP1);
tc2.SetAbsPos(CP2);
tcont.UpdateText();
tcend.UpdateText();
// draw the added objects in the overlay
overlay.AddToDisplayTree(tcend);
overlay.AddToDisplayTree(tcont);
CPCount = 0;
Preview_CP1.Visible = Preview_CP2.Visible = false;
}
else if (lcreated)
{
// add starting point
// 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);
// do it here since the coordinate calculation needs the parents' coord. transform
tc.SetAbsPos(new Point(p.X, p.Y)); //hack
curAddTo.UpdateText();
// draw the added object in the overlay
overlay.AddToDisplayTree(tc);
CPCount = 0;
} else
{
// remember control points
if (CPCount == 0)
{
CP1 = p;
Preview_CP1.SetCenter(prast.X, prast.Y);
////Canvas.SetLeft(Preview_CP1, prast.X - Preview_CP1.Width / 2);
////Canvas.SetBottom(Preview_CP1, prast.Y - Preview_CP1.Height / 2);
////if (!overlay.canvas.Children.Contains(Preview_CP1))
//// overlay.canvas.Children.Add(Preview_CP1);
////Preview_CP1.Visibility = Visibility.Visible;
Preview_CP1.Visible = true;
}
else if (CPCount == 1)
{
CP2 = p;
Preview_CP2.SetCenter(prast.X, prast.Y);
////Canvas.SetLeft(Preview_CP2, prast.X - Preview_CP2.Width / 2);
////Canvas.SetBottom(Preview_CP2, prast.Y - Preview_CP2.Height / 2);
////if (!overlay.canvas.Children.Contains(Preview_CP2))
//// overlay.canvas.Children.Add(Preview_CP2);
////Preview_CP2.Visibility = Visibility.Visible;
Preview_CP2.Visible = true;
}
CPCount++;
}
}
}
overlay.EndUpdate();
}
public override void OnLeftMouseButtonDown(OverlayShape item, Point p, TEMouseArgs e)
{
// initiate drawing process
Point mousep = overlay.Rasterizer.RasterizePixel(p);
origin = new Point(mousep.X, overlay.Height - mousep.Y);
if (IsReferenceable(item))
originRef = item;
else
originRef = null;
PreviewEllipse.SetPosition(origin.X,origin.Y,0,0);
double angle = -Helper.RotationFromMatrix(overlay.Rasterizer.View.CoordinateTransform) * 180 / Math.PI;
PreviewEllipse.Rotation = angle;
PreviewEllipse.Visible = true;
overlay.MouseCaptured = true;
}
/// <summary>
/// Determines whether the object represented by the OverlayShape item can be
/// given a reference to. This is the case, e.g., for standard coordinates. It is
/// however not the case for the coordinates in a smooth curve.
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
protected bool IsReferenceable(OverlayShape item)
{
if (!(item is OverlayNode))
return false;
Tikz_XYItem it = (item as OverlayNode).tikzitem;
// check whether item occurs in smooth curve
// we check whether the parent's parent has the word "coordinates" preceding the parent (this is a bit of a hack)
if (it is Tikz_Coord && (it.parent.parent is Tikz_Path))
{
Tikz_Path grandpa = it.parent.parent as Tikz_Path;
for (int i = grandpa.Children.IndexOf(it.parent) - 1; i > 0; i--)
{
if (!(grandpa.Children[i] is Tikz_Something))
break;
if (grandpa.Children[i].text.ToLower().Contains("coordinates"))
return false;
}
}
return true;
}
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();
}
/// <summary>
/// Toggles selection state, returns new selection state.
/// </summary>
/// <param name="o"></param>
/// <returns></returns>
public bool ToggleItem(OverlayShape o)
{
if (SelectedItems.Contains(o))
{
RemoveItem(o);
return false;
}
else
{
AddItem(o);
return true;
}
}
/// <summary>
/// Set e.Handled if you want to turn off the default handling... like opening the context menu etc.
/// </summary>
/// <param name="item">The item on which the event occurred.</param>
/// <param name="p">The cursor position, in BOTTOM LEFT CENTERED pixel coordinates.</param>
///
public virtual void OnRightMouseButtonDown(OverlayShape item, Point p, TEMouseArgs e) { }
public void JumpToSourceDoIt(OverlayShape o)
{
View.JumpToSourceDoIt(o);
}
/// <summary>
/// Clears the list, except possibly the item "except".
/// </summary>
/// <param name="except">The thing not to remove.</param>
void Clear(OverlayShape except = null)
{
foreach (OverlayShape o in SelectedItems)
if (o != except)
o.SetStdColor();
SelectedItems.RemoveWhere(o => (o != except));
//SelectedItems.Clear();
}
public override void OnLeftMouseButtonDown(OverlayShape item, Point p, TEMouseArgs e)
{
if (e.ClickCount == 2 && (item is OverlayScope)) // Select for editing
{
overlay.CurEditing = item as OverlayScope;
}
else if (e.ClickCount == 2 && (item is OverlayNode))
{
overlay.JumpToSourceDoIt(item);
}
else if (item is OverlayShape)
{
// initiate a drag/drop operation
curDragged = (OverlayShape)item;
DragOrigin = (Point)((new Point(item.View.GetLeft(), item.View.GetBottom()))-p); ////e.GetPosition(item);
////DragOrigin = new Point(DragOrigin.X, (item as OverlayShape).Height - DragOrigin.Y);
DragOriginC = p;
DragOriginO = new Point(curDragged.View.GetLeft(), curDragged.View.GetBottom());
movedenough = false;
//MessageBox.Show(o.ToString());
// select the clicked shape
if (overlay.KeyboardModifiers.HasFlag(TEModifierKeys.Control))
{
if (!ToggleItem(curDragged))
{
// unselected -> start no drag operation
curDragged = null;
}
}
else
{
AddItem(curDragged, !IsItemSelected(curDragged));
}
// adjust raster origin/scale/polar/cartesian
overlay.SetCorrectRaster(curDragged);
// capture mouse. this is important if the user drags sth. outside canvas1's bounds
if (curDragged != null)
overlay.MouseCaptured = true;
}
else if (item == null)
{
BeginSelectionChange(overlay.KeyboardModifiers.HasFlag(TEModifierKeys.Control));
// display selection rectangle
SelectionRectOrigin = overlay.CursorPosition;
//SelectionRect.RenderTransform = new TranslateTransform(SelectionRectOrigin.X, SelectionRectOrigin.Y);
SelectionRect.SetPosition(SelectionRectOrigin.X, SelectionRectOrigin.Y,0,0);
////Canvas.SetLeft(SelectionRect, SelectionRectOrigin.X);
////Canvas.SetTop(SelectionRect, SelectionRectOrigin.Y);
////SelectionRect.Width = 0;
////SelectionRect.Height = 0;
////Canvas.SetZIndex(SelectionRect, overlay.canvas.Children.Count);
////if (!overlay.canvas.Children.Contains(SelectionRect))
//// overlay.canvas.Children.Add(SelectionRect);
////SelectionRect.Visibility = System.Windows.Visibility.Visible;
SelectionRect.Visible = true;
overlay.MouseCaptured = 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();
}