public void UndoLast()
{
if (undoactions.Count >= 1)
{
MindNodeAction action = undoactions.Last();
undoactions.Remove(action);
switch (action.name)
{
case "CreateNode":
if (action.involvedNodes.Count >= 1)
{
MindNode createdNode = action.involvedNodes.Pop();
redoactions.Add(new MindNodeAction(1, "DeleteNode", createdNode));
createdNode.DeleteNode();
}
break;
case "DeleteNode":
if (action.involvedNodes.Count >= 1)
{
MindNode deletednode = action.involvedNodes.Pop();
redoactions.Add(new MindNodeAction(0, "CreateNode", deletednode));
if (deletednode.parent != null)
{
deletednode.parent.AddChildNoStyle(deletednode, false);
}
// Refresh Pivot Representation after reinstating node
deletednode.UpdatePivots();
}
break;
case "MoveNodes":
if (action.involvedNodes.Count >= 1)
{
MindNodeAction newaction = new MindNodeAction(2, "MoveNodes");
foreach (MindNode movedNode in action.involvedNodes)
{
newaction.involvedNodes.Push(movedNode);
newaction.startpoint.Push(new CalcPoint(movedNode.xpos, movedNode.ypos));
if (action.startpoint.Count > 0)
{
CalcPoint oldPos = action.startpoint.Pop();
movedNode.SetPosition(oldPos.X, oldPos.Y, false);
}
// Refresh Pivot Representation after moving node
movedNode.UpdatePivots();
}
redoactions.Add(newaction);
}
break;
case "ConnectNodes":
if (action.involvedNodes.Count >= 2)
{
MindNodeAction newAction = new MindNodeAction(3, "DeleteConnections");
for (int i = 0; i < action.involvedNodes.Count / 2; i++)
{
MindNode rightnode = action.involvedNodes.Pop();
MindNode leftnode = action.involvedNodes.Pop();
newAction.involvedNodes.Push(leftnode);
newAction.involvedNodes.Push(rightnode);
leftnode.DeleteConnection(rightnode);
}
redoactions.Add(newAction);
}
break;
case "DeleteConnections":
if (action.involvedNodes.Count >= 2)
{
MindNodeAction newAction = new MindNodeAction(3, "ConnectNodes");
for (int i = 0; i < action.involvedNodes.Count / 2; i++)
{
MindNode rightnode = action.involvedNodes.Pop();
MindNode leftnode = action.involvedNodes.Pop();
newAction.involvedNodes.Push(leftnode);
newAction.involvedNodes.Push(rightnode);
leftnode.AddConnection(rightnode);
// Refresh Pivot Representation after reinstating connection
leftnode.UpdatePivots();
}
redoactions.Add(newAction);
}
break;
case "ChangeText":
if (action.involvedNodes.Count >= 1)
{
MindNodeAction newaction = new MindNodeAction(4, "ChangeText");
MindNode changedNode = action.involvedNodes.Pop();
newaction.text = changedNode.text;
newaction.involvedNodes.Push(changedNode);
changedNode.SetText(action.text);
redoactions.Add(newaction);
}
else if (action.involvedLabel != null)
{
MindNodeAction newaction = new MindNodeAction(4, "ChangeText");
NodeLabel changedLabel = action.involvedLabel;
newaction.text = changedLabel.GetText();
newaction.involvedLabel = changedLabel;
changedLabel.SetText(action.text);
redoactions.Add(newaction);
}
break;
case "Transform":
if (action.involvedNodes.Count >= 1)
{
MindNodeAction newaction = new MindNodeAction(5, "Transform");
MindNode changedNode = action.involvedNodes.Pop();
newaction.sourceSize.X = changedNode.width;
newaction.sourceSize.Y = changedNode.height;
newaction.startpoint.Push(new CalcPoint(changedNode.xpos, changedNode.ypos));
newaction.involvedNodes.Push(changedNode);
if (action.sourceSize.X != -1)
{
changedNode.width = action.sourceSize.X;
changedNode.SetScaled(false);
}
if (action.sourceSize.Y != -1)
{
changedNode.height = action.sourceSize.Y;
changedNode.SetScaled(false);
}
CalcPoint oldPos = action.startpoint.Pop();
if (oldPos != null)
{
changedNode.SetPosition(oldPos.X, oldPos.Y, false);
}
// Refresh Pivot Representation after resetting transformation
changedNode.UpdatePivots();
changedNode.updateRepresentation();
redoactions.Add(newaction);
}
break;
}
}
}
public async Task ReadFile(String path, IStorageFile fiel)
{
try
{
MindNode newMasterNode = new MindNode(0, 0, 0, 0, 0, false);
string fullText = await Windows.Storage.FileIO.ReadTextAsync(fiel, Windows.Storage.Streams.UnicodeEncoding.Utf8);
System.Xml.Linq.XDocument xmlFile = null;
try
{
xmlFile = System.Xml.Linq.XDocument.Parse(fullText);
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("No valid XML File falling back to text parser!");
}
if (xmlFile == null)
{
IList <String> text = await Windows.Storage.FileIO.ReadLinesAsync(fiel, Windows.Storage.Streams.UnicodeEncoding.Utf8);
String[] FileLines = text.ToArray();
MindNode selectedNode = null;
Stack <MindNode> Selnodes = new Stack <MindNode>();
Stack <int> connIds = new Stack <int>();
Stack <Color> conncolors = new Stack <Color>();
Stack <String> connnames = new Stack <String>();
for (int i = 0; i < FileLines.Length; i++)
{
String[] atts = FileLines[i].Split(':', '/');
switch (atts[0])
{
case "ID":
selectedNode = newMasterNode.GetExistingNode(int.Parse(atts[1]));
break;
case "TextPos":
if (selectedNode != null)
{
selectedNode.textpos.X = int.Parse(atts[1]);
selectedNode.textpos.Y = int.Parse(atts[2]);
}
break;
case "TextFormat":
if (selectedNode != null)
{
CanvasTextFormat newFormat = new CanvasTextFormat();
newFormat.FontSize = int.Parse(atts[1]);
newFormat.FontFamily = atts[2];
if (atts[3].Equals("Italic"))
{
newFormat.FontStyle = Windows.UI.Text.FontStyle.Italic;
}
else
{
newFormat.FontStyle = Windows.UI.Text.FontStyle.Normal;
}
if (atts[4].Equals("Bold"))
{
newFormat.FontWeight = FontWeights.Bold;
}
else
{
newFormat.FontWeight = FontWeights.Normal;
}
selectedNode.SetTextStyle(newFormat);
selectedNode.TextColor = GetColorFromHexString(atts[5]);
}
break;
case "Name":
if (selectedNode != null)
{
selectedNode.SetText(atts[1]);
}
break;
case "NodeStyle":
if (selectedNode != null)
{
selectedNode.NodeDrawingStyle = DrawingStyle.ELLIPSE;
if ((atts[1]).Equals(DrawingStyle.BUTTON.ToString()))
{
selectedNode.NodeDrawingStyle = DrawingStyle.BUTTON;
}
if ((atts[1]).Equals(DrawingStyle.CIRCLE.ToString()))
{
selectedNode.NodeDrawingStyle = DrawingStyle.CIRCLE;
}
if ((atts[1]).Equals(DrawingStyle.ELLIPSEEDGE.ToString()))
{
selectedNode.NodeDrawingStyle = DrawingStyle.ELLIPSEEDGE;
}
if ((atts[1]).Equals(DrawingStyle.RECTANGLE.ToString()))
{
selectedNode.NodeDrawingStyle = DrawingStyle.RECTANGLE;
}
}
break;
case "Color":
if (selectedNode != null)
{
selectedNode.TextColor = GetColorFromHexString(atts[1]);
selectedNode.BorderColor = GetColorFromHexString(atts[2]);
selectedNode.NodeColor = GetColorFromHexString(atts[3]);
}
break;
case "Bounds":
if (selectedNode != null)
{
selectedNode.width = int.Parse(atts[3]);
selectedNode.height = int.Parse(atts[4]);
selectedNode.SetPosition(int.Parse(atts[1]), int.Parse(atts[2]), false);
}
break;
case "Scaled":
if (selectedNode != null)
{
selectedNode.SetScaled(true);
}
break;
case "ConnNodes":
for (int c = 1; c < atts.Length; c++)
{
if (atts[c].Length >= 1)
{
Selnodes.Push(selectedNode);
connIds.Push(int.Parse(atts[c]));
}
}
break;
case "ConnColors":
for (int c = 1; c < atts.Length; c++)
{
if (atts[c].Length >= 1)
{
conncolors.Push(GetColorFromHexString(atts[c]));
}
}
break;
case "ConnNames":
for (int c = 1; c < atts.Length; c++)
{
if (atts[c].Length >= 1)
{
connnames.Push(atts[c]);
}
}
break;
case "Childs":
for (int c = 1; c < atts.Length; c++)
{
if (atts[c].Length >= 1)
{
MindNode newNode = newMasterNode.GetExistingNode(int.Parse(atts[c]));
if (newNode == null)
{
newNode = new MindNode(int.Parse(atts[c]), 0, 0, 0, 0, false);
}
selectedNode.AddChild(newNode, true);
}
}
break;
}
}
MindNode m;
String connText;
Color ncolor;
while (Selnodes.Count > 0)
{
m = newMasterNode.GetExistingNode(connIds.Pop());
connText = connnames.Pop();
ncolor = conncolors.Pop();
MindNode selectednode = Selnodes.Pop();
selectednode.AddConnection(m, ncolor, connText);
}
}
GlobalNodeHandler.masterNode = newMasterNode;
if (xmlFile != null)
{
GlobalNodeHandler.masterNode.FromRepresentation(xmlFile);
}
GlobalNodeHandler.masterNode.UpdateAllWidths();
}
catch
{
}
}