Changeset 10302 for branches/HeuristicLab.EvolutionTracking/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Views/3.4

Timestamp:

01/08/14 13:58:54 (11 years ago)

Author:

bburlacu

Message:

#1772: - Added a ViewHost in the right side of the GenealogyGraphView which displays the encoding-specific content when a GenealogyGraphNode is clicked.

• Migrated new SymbolicExpressionTreeChart (drawing the tree using the ReingoldTilfordLayoutEngine) to the new branch
• Copied SymbolicDataAnalysisExpressionTreeMatching.cs and SymbolicDataAnalysisExpressionTreeSimilarityCalculator.cs to the new branch

Location:

branches/HeuristicLab.EvolutionTracking/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Views/3.4

Files:

• SymbolicExpressionTreeChart.Designer.cs (modified) (4 diffs)
• SymbolicExpressionTreeChart.cs (modified) (8 diffs)

branches/HeuristicLab.EvolutionTracking/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Views/3.4/SymbolicExpressionTreeChart.Designer.cs

@@ -50 +50 @@
       this.saveImageToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
       this.saveFileDialog = new System.Windows.Forms.SaveFileDialog();
+      this.exportLatexToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
       this.contextMenuStrip.SuspendLayout();
       this.SuspendLayout();
@@ -56 +57 @@
       // 
       this.contextMenuStrip.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
-            this.saveImageToolStripMenuItem});
+            this.saveImageToolStripMenuItem,
+            this.exportLatexToolStripMenuItem});
       this.contextMenuStrip.Name = "contextMenuStrip";
-      this.contextMenuStrip.Size = new System.Drawing.Size(135, 26);
+      this.contextMenuStrip.Size = new System.Drawing.Size(161, 70);
       // 
       // saveImageToolStripMenuItem
       // 
       this.saveImageToolStripMenuItem.Name = "saveImageToolStripMenuItem";
-      this.saveImageToolStripMenuItem.Size = new System.Drawing.Size(134, 22);
+      this.saveImageToolStripMenuItem.Size = new System.Drawing.Size(160, 22);
       this.saveImageToolStripMenuItem.Text = "Save Image";
       this.saveImageToolStripMenuItem.Click += new System.EventHandler(this.saveImageToolStripMenuItem_Click);
@@ -70 +72 @@
       // 
       this.saveFileDialog.Filter = "Bitmap (*.bmp)|*.bmp|EMF (*.emf)|*.emf";
-      this.saveFileDialog.FilterIndex = 1;
+      // 
+      // exportLatexToolStripMenuItem
+      // 
+      this.exportLatexToolStripMenuItem.Name = "exportLatexToolStripMenuItem";
+      this.exportLatexToolStripMenuItem.Size = new System.Drawing.Size(160, 22);
+      this.exportLatexToolStripMenuItem.Text = "Export Pgf/Latex";
+      this.exportLatexToolStripMenuItem.Click += new System.EventHandler(this.exportLatexToolStripMenuItem_Click);
+      // 
       // SymbolicExpressionTreeChart
       // 
-      this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Inherit;
       this.ContextMenuStrip = this.contextMenuStrip;
+      this.DoubleBuffered = true;
       this.Name = "SymbolicExpressionTreeChart";
       this.MouseClick += new System.Windows.Forms.MouseEventHandler(this.SymbolicExpressionTreeChart_MouseClick);
@@ -93 +102 @@
     protected System.Windows.Forms.ToolStripMenuItem saveImageToolStripMenuItem;
     protected System.Windows.Forms.SaveFileDialog saveFileDialog;
+    private System.Windows.Forms.ToolStripMenuItem exportLatexToolStripMenuItem;
   }
 }

branches/HeuristicLab.EvolutionTracking/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Views/3.4/SymbolicExpressionTreeChart.cs

@@ -24 +24 @@
 using System.Drawing;
 using System.Drawing.Imaging;
+using System.IO;
+using System.Linq;
 using System.Windows.Forms;
+using Point = System.Drawing.Point;
 
 namespace HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Views {
@@ -32 +35 @@
     private Dictionary<ISymbolicExpressionTreeNode, VisualSymbolicExpressionTreeNode> visualTreeNodes;
     private Dictionary<Tuple<ISymbolicExpressionTreeNode, ISymbolicExpressionTreeNode>, VisualSymbolicExpressionTreeNodeConnection> visualLines;
+    private readonly ReingoldTilfordLayoutEngine<ISymbolicExpressionTreeNode> layoutEngine;
+    private readonly SymbolicExpressionTreeLayoutAdapter layoutAdapter;
+
+    private const int preferredNodeWidth = 70;
+    private const int preferredNodeHeight = 46;
+    private const int minHorizontalDistance = 20;
+    private const int minVerticalDistance = 20;
+
 
     public SymbolicExpressionTreeChart() {
@@ -40 +51 @@
       this.lineColor = Color.Black;
       this.backgroundColor = Color.White;
-      this.textFont = new Font("Times New Roman", 8);
+      this.textFont = new Font("Times New Roman", 14);
+      layoutEngine = new ReingoldTilfordLayoutEngine<ISymbolicExpressionTreeNode>();
+      layoutAdapter = new SymbolicExpressionTreeLayoutAdapter();
     }
 
     public SymbolicExpressionTreeChart(ISymbolicExpressionTree tree)
       : this() {
+      layoutEngine = new ReingoldTilfordLayoutEngine<ISymbolicExpressionTreeNode>();
+      layoutAdapter = new SymbolicExpressionTreeLayoutAdapter();
       this.Tree = tree;
     }
 
+    #region Public properties
     private int spacing;
     public int Spacing {
@@ -106 +122 @@
       set { suspendRepaint = value; }
     }
+    #endregion
 
     protected override void OnPaint(PaintEventArgs e) {
@@ -157 +174 @@
         graphics.Clear(backgroundColor);
         if (tree != null) {
-          int height = this.Height / tree.Depth;
-          DrawFunctionTree(tree, graphics, 0, 0, this.Width, height);
+          DrawFunctionTree(tree, graphics, preferredNodeWidth, preferredNodeHeight, minHorizontalDistance, minVerticalDistance);
         }
       }
@@ -250 +266 @@
 
     #region methods for painting the symbolic expression tree
-    private void DrawFunctionTree(ISymbolicExpressionTree tree, Graphics graphics, int x, int y, int width, int height) {
-      DrawFunctionTree(tree.Root, graphics, x, y, width, height, Point.Empty);
-    }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="functionTree"> function tree to draw</param>
-    /// <param name="graphics">graphics object to draw on</param>
-    /// <param name="x">x coordinate of drawing area</param>
-    /// <param name="y">y coordinate of drawing area</param>
-    /// <param name="width">width of drawing area</param>
-    /// <param name="height">height of drawing area</param>
-    private void DrawFunctionTree(ISymbolicExpressionTreeNode node, Graphics graphics, int x, int y, int width, int height, Point connectionPoint) {
-      VisualSymbolicExpressionTreeNode visualTreeNode = visualTreeNodes[node];
-      float center_x = x + width / 2;
-      float center_y = y + height / 2;
-      int actualWidth = width - spacing;
-      int actualHeight = height - spacing;
-
-      using (var textBrush = new SolidBrush(visualTreeNode.TextColor))
-      using (var nodeLinePen = new Pen(visualTreeNode.LineColor))
-      using (var nodeFillBrush = new SolidBrush(visualTreeNode.FillColor)) {
-
-        //calculate size of node
-        if (actualWidth >= visualTreeNode.PreferredWidth && actualHeight >= visualTreeNode.PreferredHeight) {
-          visualTreeNode.Width = visualTreeNode.PreferredWidth;
-          visualTreeNode.Height = visualTreeNode.PreferredHeight;
-          visualTreeNode.X = (int)center_x - visualTreeNode.Width / 2;
-          visualTreeNode.Y = (int)center_y - visualTreeNode.Height / 2;
-        }
-          //width too small to draw in desired sized
-        else if (actualWidth < visualTreeNode.PreferredWidth && actualHeight >= visualTreeNode.PreferredHeight) {
-          visualTreeNode.Width = actualWidth;
-          visualTreeNode.Height = visualTreeNode.PreferredHeight;
-          visualTreeNode.X = x;
-          visualTreeNode.Y = (int)center_y - visualTreeNode.Height / 2;
-        }
-          //height too small to draw in desired sized
-        else if (actualWidth >= visualTreeNode.PreferredWidth && actualHeight < visualTreeNode.PreferredHeight) {
-          visualTreeNode.Width = visualTreeNode.PreferredWidth;
-          visualTreeNode.Height = actualHeight;
-          visualTreeNode.X = (int)center_x - visualTreeNode.Width / 2;
-          visualTreeNode.Y = y;
-        }
-          //width and height too small to draw in desired size
-        else {
-          visualTreeNode.Width = actualWidth;
-          visualTreeNode.Height = actualHeight;
-          visualTreeNode.X = x;
-          visualTreeNode.Y = y;
-        }
-
-        //draw terminal node
-        if (node.SubtreeCount == 0) {
-          graphics.FillRectangle(nodeFillBrush, visualTreeNode.X, visualTreeNode.Y, visualTreeNode.Width, visualTreeNode.Height);
-          graphics.DrawRectangle(nodeLinePen, visualTreeNode.X, visualTreeNode.Y, visualTreeNode.Width, visualTreeNode.Height);
-        } else {
-          graphics.FillEllipse(nodeFillBrush, visualTreeNode.X, visualTreeNode.Y, visualTreeNode.Width, visualTreeNode.Height);
-          graphics.DrawEllipse(nodeLinePen, visualTreeNode.X, visualTreeNode.Y, visualTreeNode.Width, visualTreeNode.Height);
-        }
-
-        //draw name of symbol
-        var text = node.ToString();
-        graphics.DrawString(text, textFont, textBrush, new RectangleF(visualTreeNode.X, visualTreeNode.Y, visualTreeNode.Width, visualTreeNode.Height), stringFormat);
-
-        //draw connection line to parent node
-        if (!connectionPoint.IsEmpty && node.Parent != null) {
-          var visualLine = GetVisualSymbolicExpressionTreeNodeConnection(node.Parent, node);
-          using (Pen linePen = new Pen(visualLine.LineColor)) {
+
+    private void DrawFunctionTree(ISymbolicExpressionTree tree, Graphics graphics, int preferredWidth, int preferredHeight, int minHDistance, int minVDistance) {
+      var layoutNodes = layoutAdapter.Convert(tree).ToList();
+      layoutEngine.Reset();
+      layoutEngine.Root = layoutNodes[0];
+      foreach (var ln in layoutNodes)
+        layoutEngine.AddNode(ln.Content, ln);
+      layoutEngine.MinHorizontalSpacing = (preferredNodeWidth + minHDistance);
+      layoutEngine.MinVerticalSpacing = (preferredNodeHeight + minVDistance);
+      layoutEngine.CalculateLayout();
+      var bounds = layoutEngine.Bounds();
+      double sx = this.Width / (bounds.Width + preferredWidth);
+      if (sx > 1) sx = 1;
+      double sy = this.Height / bounds.Height;
+      if (sy > 1) sy = 1;
+      double dx = (this.Width - bounds.Width) / 2;
+      if (dx < 0) dx = 0;
+      double dy = (this.Height - bounds.Height) / 2;
+      if (dy < 0) dy = 0;
+
+      var levels = layoutNodes.GroupBy(n => n.Level, n => n);
+
+      foreach (var level in levels) {
+        var nodes = level.ToList();
+        double min = 0;
+        for (int i = 0; i < nodes.Count - 1; ++i) {
+          var w = (nodes[i + 1].X - nodes[i].X) * sx - preferredWidth;
+          if (w < min) min = w;
+        }
+        if (min > 0) min = 0;
+
+        foreach (var layoutNode in level) {
+          var visualNode = visualTreeNodes[layoutNode.Content];
+          visualNode.Width = (int)Math.Round(preferredWidth + min) - 2; // -2 to allow enough padding (1px on each side) for the node contour to be drawn
+          visualNode.Height = (int)Math.Round(preferredHeight * sy);
+          visualNode.X = (int)(Math.Round(layoutNode.X * sx + dx));
+          visualNode.Y = (int)(Math.Round(layoutNode.Y * sy + dy));
+          DrawTreeNode(graphics, visualNode);
+        }
+      }
+
+      graphics.ResetClip(); // reset clip region
+      // draw node connections
+      foreach (var visualNode in visualTreeNodes.Values) {
+        var node = visualNode.SymbolicExpressionTreeNode;
+        foreach (var subtree in node.Subtrees) {
+          var visualLine = GetVisualSymbolicExpressionTreeNodeConnection(node, subtree);
+          var visualSubtree = visualTreeNodes[subtree];
+          var origin = new Point(visualNode.X + visualNode.Width / 2, visualNode.Y + visualNode.Height);
+          var target = new Point(visualSubtree.X + visualSubtree.Width / 2, visualSubtree.Y);
+          using (var linePen = new Pen(visualLine.LineColor)) {
             linePen.DashStyle = visualLine.DashStyle;
-            graphics.DrawLine(linePen, connectionPoint, new Point(visualTreeNode.X + visualTreeNode.Width / 2, visualTreeNode.Y));
+            graphics.DrawLine(linePen, origin, target);
           }
-        }
-
-        //calculate areas for the subtrees according to their tree size and call drawFunctionTree
-        Point connectFrom = new Point(visualTreeNode.X + visualTreeNode.Width / 2, visualTreeNode.Y + visualTreeNode.Height);
-        int[] xBoundaries = new int[node.SubtreeCount + 1];
-        xBoundaries[0] = x;
-        for (int i = 0; i < node.SubtreeCount; i++) {
-          xBoundaries[i + 1] = (int)(xBoundaries[i] + (width * (double)node.GetSubtree(i).GetLength()) / (node.GetLength() - 1));
-          DrawFunctionTree(node.GetSubtree(i), graphics, xBoundaries[i], y + height, xBoundaries[i + 1] - xBoundaries[i], height, connectFrom);
         }
       }
@@ -365 +353 @@
     }
     #endregion
-
     #region save image
     private void saveImageToolStripMenuItem_Click(object sender, EventArgs e) {
@@ -388 +375 @@
     public void SaveImageAsEmf(string filename) {
       if (tree == null) return;
-      using (Graphics g = CreateGraphics()) {
-        using (Metafile file = new Metafile(filename, g.GetHdc())) {
-          using (Graphics emfFile = Graphics.FromImage(file)) {
-            int height = this.Height / tree.Depth;
-            DrawFunctionTree(tree, emfFile, 0, 0, Width, height);
+      using (var graphics = Graphics.FromImage(image)) {
+        var rectangle = new Rectangle(0, 0, image.Width, image.Height);
+        using (var metafile = new Metafile(filename, graphics.GetHdc(), rectangle, MetafileFrameUnit.Pixel, EmfType.EmfPlusDual)) {
+          graphics.ReleaseHdc();
+          using (var g = Graphics.FromImage(metafile)) {
+            DrawFunctionTree(tree, g, 0, 0, image.Width, image.Height);
           }
         }
-        g.ReleaseHdc();
+      }
+    }
+    #endregion
+    #region export pgf/tikz
+    private void exportLatexToolStripMenuItem_Click(object sender, EventArgs e) {
+      using (var dialog = new SaveFileDialog { Filter = "Tex (*.tex)|*.tex" }) {
+        if (dialog.ShowDialog() != DialogResult.OK) return;
+        string filename = dialog.FileName.ToLower();
+        var formatter = new SymbolicExpressionTreeLatexFormatter();
+        File.WriteAllText(filename, formatter.Format(Tree));
       }
     }