//tools/binary_size: Consolidate most tools into "supersize" command

tools/binary_size/template/D3SymbolTreeMap.js

Index: tools/binary_size/template/D3SymbolTreeMap.js
diff --git a/tools/binary_size/template/D3SymbolTreeMap.js b/tools/binary_size/template/D3SymbolTreeMap.js
deleted file mode 100644
index 2c3bab6e07f6a51f6a0d6f5932fc0207b06ae6a2..0000000000000000000000000000000000000000
--- a/tools/binary_size/template/D3SymbolTreeMap.js
+++ /dev/null
@@ -1,911 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// TODO:
-// 1. Visibility functions: base on boxPadding.t, not 15
-// 2. Track a maxDisplayDepth that is user-settable:
-//    maxDepth == currentRoot.depth + maxDisplayDepth
-function D3SymbolTreeMap(mapWidth, mapHeight, levelsToShow) {
-  this._mapContainer = undefined;
-  this._mapWidth = mapWidth;
-  this._mapHeight = mapHeight;
-  this.boxPadding = {'l': 5, 'r': 5, 't': 20, 'b': 5};
-  this.infobox = undefined;
-  this._maskContainer = undefined;
-  this._highlightContainer = undefined;
-  // Transition in this order:
-  // 1. Exiting items go away.
-  // 2. Updated items move.
-  // 3. New items enter.
-  this._exitDuration=500;
-  this._updateDuration=500;
-  this._enterDuration=500;
-  this._firstTransition=true;
-  this._layout = undefined;
-  this._currentRoot = undefined;
-  this._currentNodes = undefined;
-  this._treeData = undefined;
-  this._maxLevelsToShow = levelsToShow;
-  this._currentMaxDepth = this._maxLevelsToShow;
-}
-
-/**
- * Make a number pretty, with comma separators.
- */
-D3SymbolTreeMap._pretty = function(num) {
-  var asString = String(num);
-  var result = '';
-  var counter = 0;
-  for (var x = asString.length - 1; x >= 0; x--) {
-    counter++;
-    if (counter === 4) {
-      result = ',' + result;
-      counter = 1;
-    }
-    result = asString.charAt(x) + result;
-  }
-  return result;
-}
-
-/**
- * Express a number in terms of KiB, MiB, GiB, etc.
- * Note that these are powers of 2, not of 10.
- */
-D3SymbolTreeMap._byteify = function(num) {
-  var suffix;
-  if (num >= 1024) {
-    if (num >= 1024 * 1024 * 1024) {
-      suffix = 'GiB';
-      num = num / (1024 * 1024 * 1024);
-    } else if (num >= 1024 * 1024) {
-      suffix = 'MiB';
-      num = num / (1024 * 1024);
-    } else if (num >= 1024) {
-      suffix = 'KiB'
-      num = num / 1024;
-    }
-    return num.toFixed(2) + ' ' + suffix;
-  }
-  return num + ' B';
-}
-
-D3SymbolTreeMap._NM_SYMBOL_TYPE_DESCRIPTIONS = {
-  'b': '.bss',
-  'd': '.data and .data.*',
-  'r': '.rodata',
-  't': '.text',
-  'v': 'Vtable entry',
-  '!': 'Generated Symbols (typeinfo, thunks, etc)',
-};
-D3SymbolTreeMap._NM_SYMBOL_TYPES = '';
-for (var symbol_type in D3SymbolTreeMap._NM_SYMBOL_TYPE_DESCRIPTIONS) {
-  D3SymbolTreeMap._NM_SYMBOL_TYPES += symbol_type;
-}
-
-/**
- * Given a symbol type code, look up and return a human-readable description
- * of that symbol type. If the symbol type does not match one of the known
- * types, the unrecognized description (corresponding to symbol type '?') is
- * returned instead of null or undefined.
- */
-D3SymbolTreeMap._getSymbolDescription = function(type) {
-  var result = D3SymbolTreeMap._NM_SYMBOL_TYPE_DESCRIPTIONS[type];
-  if (result === undefined) {
-    result = D3SymbolTreeMap._NM_SYMBOL_TYPE_DESCRIPTIONS['?'];
-  }
-  return result;
-}
-
-D3SymbolTreeMap._colorArray = [
-  'rgb(190,186,218)',
-  'rgb(253,180,98)',
-  'rgb(141,211,199)',
-  'rgb(128,177,211)',
-  'rgb(255,237,111)',
-  'rgb(204,235,197)',
-]
-
-D3SymbolTreeMap._initColorMap = function() {
-  var map = {};
-  var numColors = D3SymbolTreeMap._colorArray.length;
-  var count = 0;
-  for (var key in D3SymbolTreeMap._NM_SYMBOL_TYPE_DESCRIPTIONS) {
-    var index = count++ % numColors;
-    map[key] = d3.rgb(D3SymbolTreeMap._colorArray[index]);
-  }
-  D3SymbolTreeMap._colorMap = map;
-}
-D3SymbolTreeMap._initColorMap();
-
-D3SymbolTreeMap.getColorForType = function(type) {
-  var result = D3SymbolTreeMap._colorMap[type];
-  if (result === undefined) return d3.rgb('rgb(255,255,255)');
-  return result;
-}
-
-D3SymbolTreeMap.prototype.init = function() {
-  this.infobox = this._createInfoBox();
-  this._mapContainer = d3.select('body').append('div')
-      .style('position', 'relative')
-      .style('width', this._mapWidth)
-      .style('height', this._mapHeight)
-      .style('padding', 0)
-      .style('margin', 0)
-      .style('box-shadow', '5px 5px 5px #888');
-  this._layout = this._createTreeMapLayout();
-  this._setData(tree_data); // TODO: Don't use global 'tree_data'
-}
-
-/**
- * Sets the data displayed by the treemap and layint out the map.
- */
-D3SymbolTreeMap.prototype._setData = function(data) {
-  this._treeData = data;
-  console.time('_crunchStats');
-  this._crunchStats(data);
-  console.timeEnd('_crunchStats');
-  this._currentRoot = this._treeData;
-  this._currentNodes = this._layout.nodes(this._currentRoot);
-  this._currentMaxDepth = this._maxLevelsToShow;
-  this._doLayout();
-}
-
-/**
- * Recursively traverses the entire tree starting from the specified node,
- * computing statistics and recording metadata as it goes. Call this method
- * only once per imported tree.
- */
-D3SymbolTreeMap.prototype._crunchStats = function(node) {
-  var stack = [];
-  stack.idCounter = 0;
-  this._crunchStatsHelper(stack, node);
-}
-
-/**
- * Invoke the specified visitor function on all data elements currently shown
- * in the treemap including any and all of their children, starting at the
- * currently-displayed root and descening recursively. The function will be
- * passed the datum element representing each node. No traversal guarantees
- * are made.
- */
-D3SymbolTreeMap.prototype.visitFromDisplayedRoot = function(visitor) {
-  this._visit(this._currentRoot, visitor);
-}
-
-/**
- * Helper function for visit functions.
- */
-D3SymbolTreeMap.prototype._visit = function(datum, visitor) {
-  visitor.call(this, datum);
-  if (datum.children) for (var i = 0; i < datum.children.length; i++) {
-    this._visit(datum.children[i], visitor);
-  }
-}
-
-D3SymbolTreeMap.prototype._crunchStatsHelper = function(stack, node) {
-  // Only overwrite the node ID if it isn't already set.
-  // This allows stats to be crunched multiple times on subsets of data
-  // without breaking the data-to-ID bindings. New nodes get new IDs.
-  if (node.id === undefined) node.id = stack.idCounter++;
-  if (node.children === undefined) {
-    // Leaf node (symbol); accumulate stats.
-    for (var i = 0; i < stack.length; i++) {
-      var ancestor = stack[i];
-      if (!ancestor.symbol_stats) ancestor.symbol_stats = {};
-      if (ancestor.symbol_stats[node.t] === undefined) {
-        // New symbol type we haven't seen before, just record.
-        ancestor.symbol_stats[node.t] = {'count': 1,
-                                         'size': node.value};
-      } else {
-        // Existing symbol type, increment.
-        ancestor.symbol_stats[node.t].count++;
-        ancestor.symbol_stats[node.t].size += node.value;
-      }
-    }
-  } else for (var i = 0; i < node.children.length; i++) {
-    stack.push(node);
-    this._crunchStatsHelper(stack, node.children[i]);
-    stack.pop();
-  }
-}
-
-D3SymbolTreeMap.prototype._createTreeMapLayout = function() {
-  var result = d3.layout.treemap()
-      .padding([this.boxPadding.t, this.boxPadding.r,
-                this.boxPadding.b, this.boxPadding.l])
-      .size([this._mapWidth, this._mapHeight]);
-  return result;
-}
-
-D3SymbolTreeMap.prototype.resize = function(width, height) {
-  this._mapWidth = width;
-  this._mapHeight = height;
-  this._mapContainer.style('width', width).style('height', height);
-  this._layout.size([this._mapWidth, this._mapHeight]);
-  this._currentNodes = this._layout.nodes(this._currentRoot);
-  this._doLayout();
-}
-
-D3SymbolTreeMap.prototype._zoomDatum = function(datum) {
-  if (this._currentRoot === datum) return; // already here
-  this._hideHighlight(datum);
-  this._hideInfoBox(datum);
-  this._currentRoot = datum;
-  this._currentNodes = this._layout.nodes(this._currentRoot);
-  this._currentMaxDepth = this._currentRoot.depth + this._maxLevelsToShow;
-  console.log('zooming into datum ' + this._currentRoot.n);
-  this._doLayout();
-}
-
-D3SymbolTreeMap.prototype.setMaxLevels = function(levelsToShow) {
-  this._maxLevelsToShow = levelsToShow;
-  this._currentNodes = this._layout.nodes(this._currentRoot);
-  this._currentMaxDepth = this._currentRoot.depth + this._maxLevelsToShow;
-  console.log('setting max levels to show: ' + this._maxLevelsToShow);
-  this._doLayout();
-}
-
-/**
- * Clone the specified tree, returning an independent copy of the data.
- * Only the original attributes expected to exist prior to invoking
- * _crunchStatsHelper are retained, with the exception of the 'id' attribute
- * (which must be retained for proper transitions).
- * If the optional filter parameter is provided, it will be called with 'this'
- * set to this treemap instance and passed the 'datum' object as an argument.
- * When specified, the copy will retain only the data for which the filter
- * function returns true.
- */
-D3SymbolTreeMap.prototype._clone = function(datum, filter) {
-  var trackingStats = false;
-  if (this.__cloneState === undefined) {
-    console.time('_clone');
-    trackingStats = true;
-    this.__cloneState = {'accepted': 0, 'rejected': 0,
-                         'forced': 0, 'pruned': 0};
-  }
-
-  // Must go depth-first. All parents of children that are accepted by the
-  // filter must be preserved!
-  var copy = {'n': datum.n, 'k': datum.k};
-  var childAccepted = false;
-  if (datum.children !== undefined) {
-    for (var i = 0; i < datum.children.length; i++) {
-      var copiedChild = this._clone(datum.children[i], filter);
-      if (copiedChild !== undefined) {
-        childAccepted = true; // parent must also be accepted.
-        if (copy.children === undefined) copy.children = [];
-        copy.children.push(copiedChild);
-      }
-    }
-  }
-
-  // Ignore nodes that don't match the filter, when present.
-  var accept = false;
-  if (childAccepted) {
-    // Parent of an accepted child must also be accepted.
-    this.__cloneState.forced++;
-    accept = true;
-  } else if (filter !== undefined && filter.call(this, datum) !== true) {
-    this.__cloneState.rejected++;
-  } else if (datum.children === undefined) {
-    // Accept leaf nodes that passed the filter
-    this.__cloneState.accepted++;
-    accept = true;
-  } else {
-    // Non-leaf node. If no children are accepted, prune it.
-    this.__cloneState.pruned++;
-  }
-
-  if (accept) {
-    if (datum.id !== undefined) copy.id = datum.id;
-    if (datum.lastPathElement !== undefined) {
-      copy.lastPathElement = datum.lastPathElement;
-    }
-    if (datum.t !== undefined) copy.t = datum.t;
-    if (datum.value !== undefined && datum.children === undefined) {
-      copy.value = datum.value;
-    }
-  } else {
-    // Discard the copy we were going to return
-    copy = undefined;
-  }
-
-  if (trackingStats === true) {
-    // We are the fist call in the recursive chain.
-    console.timeEnd('_clone');
-    var totalAccepted = this.__cloneState.accepted +
-                        this.__cloneState.forced;
-    console.log(
-        totalAccepted + ' nodes retained (' +
-        this.__cloneState.forced + ' forced by accepted children, ' +
-        this.__cloneState.accepted + ' accepted on their own merits), ' +
-        this.__cloneState.rejected + ' nodes (and their children) ' +
-                                     'filtered out,' +
-        this.__cloneState.pruned + ' nodes pruned because because no ' +
-                                   'children remained.');
-    delete this.__cloneState;
-  }
-  return copy;
-}
-
-D3SymbolTreeMap.prototype.filter = function(filter) {
-  // Ensure we have a copy of the original root.
-  if (this._backupTree === undefined) this._backupTree = this._treeData;
-  this._mapContainer.selectAll('div').remove();
-  this._setData(this._clone(this._backupTree, filter));
-}
-
-D3SymbolTreeMap.prototype._doLayout = function() {
-  console.time('_doLayout');
-  this._handleInodes();
-  this._handleLeaves();
-  this._firstTransition = false;
-  console.timeEnd('_doLayout');
-}
-
-D3SymbolTreeMap.prototype._highlightElement = function(datum, selection) {
-  this._showHighlight(datum, selection);
-}
-
-D3SymbolTreeMap.prototype._unhighlightElement = function(datum, selection) {
-  this._hideHighlight(datum, selection);
-}
-
-D3SymbolTreeMap.prototype._handleInodes = function() {
-  console.time('_handleInodes');
-  var thisTreeMap = this;
-  var inodes = this._currentNodes.filter(function(datum){
-    return (datum.depth <= thisTreeMap._currentMaxDepth) &&
-            datum.children !== undefined;
-  });
-  var cellsEnter = this._mapContainer.selectAll('div.inode')
-      .data(inodes, function(datum) { return datum.id; })
-      .enter()
-      .append('div').attr('class', 'inode').attr('id', function(datum){
-          return 'node-' + datum.id;});
-
-
-  // Define enter/update/exit for inodes
-  cellsEnter
-      .append('div')
-      .attr('class', 'rect inode_rect_entering')
-      .style('z-index', function(datum) { return datum.id * 2; })
-      .style('position', 'absolute')
-      .style('left', function(datum) { return datum.x; })
-      .style('top', function(datum){ return datum.y; })
-      .style('width', function(datum){ return datum.dx; })
-      .style('height', function(datum){ return datum.dy; })
-      .style('opacity', '0')
-      .style('border', '1px solid black')
-      .style('background-image', function(datum) {
-        return thisTreeMap._makeSymbolBucketBackgroundImage.call(
-               thisTreeMap, datum);
-      })
-      .style('background-color', function(datum) {
-        if (datum.t === undefined) return 'rgb(220,220,220)';
-        return D3SymbolTreeMap.getColorForType(datum.t).toString();
-      })
-      .on('mouseover', function(datum){
-        thisTreeMap._highlightElement.call(
-            thisTreeMap, datum, d3.select(this));
-        thisTreeMap._showInfoBox.call(thisTreeMap, datum);
-      })
-      .on('mouseout', function(datum){
-        thisTreeMap._unhighlightElement.call(
-            thisTreeMap, datum, d3.select(this));
-        thisTreeMap._hideInfoBox.call(thisTreeMap, datum);
-      })
-      .on('mousemove', function(){
-          thisTreeMap._moveInfoBox.call(thisTreeMap, event);
-      })
-      .on('dblclick', function(datum){
-        if (datum !== thisTreeMap._currentRoot) {
-          // Zoom into the selection
-          thisTreeMap._zoomDatum(datum);
-        } else if (datum.parent) {
-          console.log('event.shiftKey=' + event.shiftKey);
-          if (event.shiftKey === true) {
-            // Back to root
-            thisTreeMap._zoomDatum(thisTreeMap._treeData);
-          } else {
-            // Zoom out of the selection
-            thisTreeMap._zoomDatum(datum.parent);
-          }
-        }
-      });
-  cellsEnter
-      .append('div')
-      .attr('class', 'label inode_label_entering')
-      .style('z-index', function(datum) { return (datum.id * 2) + 1; })
-      .style('position', 'absolute')
-      .style('left', function(datum){ return datum.x; })
-      .style('top', function(datum){ return datum.y; })
-      .style('width', function(datum) { return datum.dx; })
-      .style('height', function(datum) { return thisTreeMap.boxPadding.t; })
-      .style('opacity', '0')
-      .style('pointer-events', 'none')
-      .style('-webkit-user-select', 'none')
-      .style('overflow', 'hidden') // required for ellipsis
-      .style('white-space', 'nowrap') // required for ellipsis
-      .style('text-overflow', 'ellipsis')
-      .style('text-align', 'center')
-      .style('vertical-align', 'top')
-      .style('visibility', function(datum) {
-        return (datum.dx < 15 || datum.dy < 15) ? 'hidden' : 'visible';
-      })
-      .text(function(datum) {
-        var sizeish = ' [' + D3SymbolTreeMap._byteify(datum.value) + ']'
-        var text;
-        if (datum.k === 'b') { // bucket
-          if (datum === thisTreeMap._currentRoot) {
-            text = thisTreeMap.pathFor(datum) + ': '
-                + D3SymbolTreeMap._getSymbolDescription(datum.t)
-          } else {
-            text = D3SymbolTreeMap._getSymbolDescription(datum.t);
-          }
-        } else if (datum === thisTreeMap._currentRoot) {
-          // The top-most level should always show the complete path
-          text = thisTreeMap.pathFor(datum);
-        } else {
-          // Anything that isn't a bucket or a leaf (symbol) or the
-          // current root should just show its name.
-          text = datum.n;
-        }
-        return text + sizeish;
-      }
-  );
-
-  // Complicated transition logic:
-  // For nodes that are entering, we want to fade them in in-place AFTER
-  // any adjusting nodes have resized and moved around. That way, new nodes
-  // seamlessly appear in the right spot after their containers have resized
-  // and moved around.
-  // To do this we do some trickery:
-  // 1. Define a '_entering' class on the entering elements
-  // 2. Use this to select only the entering elements and apply the opacity
-  //    transition.
-  // 3. Use the same transition to drop the '_entering' suffix, so that they
-  //    will correctly update in later zoom/resize/whatever operations.
-  // 4. The update transition is achieved by selecting the elements without
-  //    the '_entering_' suffix and applying movement and resizing transition
-  //    effects.
-  this._mapContainer.selectAll('div.inode_rect_entering').transition()
-      .duration(thisTreeMap._enterDuration).delay(
-          this._firstTransition ? 0 : thisTreeMap._exitDuration +
-              thisTreeMap._updateDuration)
-      .attr('class', 'rect inode_rect')
-      .style('opacity', '1')
-  this._mapContainer.selectAll('div.inode_label_entering').transition()
-      .duration(thisTreeMap._enterDuration).delay(
-          this._firstTransition ? 0 : thisTreeMap._exitDuration +
-              thisTreeMap._updateDuration)
-      .attr('class', 'label inode_label')
-      .style('opacity', '1')
-  this._mapContainer.selectAll('div.inode_rect').transition()
-      .duration(thisTreeMap._updateDuration).delay(thisTreeMap._exitDuration)
-      .style('opacity', '1')
-      .style('background-image', function(datum) {
-        return thisTreeMap._makeSymbolBucketBackgroundImage.call(
-            thisTreeMap, datum);
-      })
-      .style('left', function(datum) { return datum.x; })
-      .style('top', function(datum){ return datum.y; })
-      .style('width', function(datum){ return datum.dx; })
-      .style('height', function(datum){ return datum.dy; });
-  this._mapContainer.selectAll('div.inode_label').transition()
-      .duration(thisTreeMap._updateDuration).delay(thisTreeMap._exitDuration)
-      .style('opacity', '1')
-      .style('visibility', function(datum) {
-        return (datum.dx < 15 || datum.dy < 15) ? 'hidden' : 'visible';
-      })
-      .style('left', function(datum){ return datum.x; })
-      .style('top', function(datum){ return datum.y; })
-      .style('width', function(datum) { return datum.dx; })
-      .style('height', function(datum) { return thisTreeMap.boxPadding.t; })
-      .text(function(datum) {
-        var sizeish = ' [' + D3SymbolTreeMap._byteify(datum.value) + ']'
-        var text;
-        if (datum.k === 'b') {
-          if (datum === thisTreeMap._currentRoot) {
-            text = thisTreeMap.pathFor(datum) + ': ' +
-                D3SymbolTreeMap._getSymbolDescription(datum.t)
-          } else {
-            text = D3SymbolTreeMap._getSymbolDescription(datum.t);
-          }
-        } else if (datum === thisTreeMap._currentRoot) {
-          // The top-most level should always show the complete path
-          text = thisTreeMap.pathFor(datum);
-        } else {
-          // Anything that isn't a bucket or a leaf (symbol) or the
-          // current root should just show its name.
-          text = datum.n;
-        }
-        return text + sizeish;
-      });
-  var exit = this._mapContainer.selectAll('div.inode')
-      .data(inodes, function(datum) { return 'inode-' + datum.id; })
-      .exit();
-  exit.selectAll('div.inode_rect').transition().duration(
-      thisTreeMap._exitDuration).style('opacity', 0);
-  exit.selectAll('div.inode_label').transition().duration(
-      thisTreeMap._exitDuration).style('opacity', 0);
-  exit.transition().delay(thisTreeMap._exitDuration + 1).remove();
-
-  console.log(inodes.length + ' inodes layed out.');
-  console.timeEnd('_handleInodes');
-}
-
-D3SymbolTreeMap.prototype._handleLeaves = function() {
-  console.time('_handleLeaves');
-  var color_fn = d3.scale.category10();
-  var thisTreeMap = this;
-  var leaves = this._currentNodes.filter(function(datum){
-    return (datum.depth <= thisTreeMap._currentMaxDepth) &&
-        datum.children === undefined; });
-  var cellsEnter = this._mapContainer.selectAll('div.leaf')
-      .data(leaves, function(datum) { return datum.id; })
-      .enter()
-      .append('div').attr('class', 'leaf').attr('id', function(datum){
-        return 'node-' + datum.id;
-      });
-
-  // Define enter/update/exit for leaves
-  cellsEnter
-      .append('div')
-      .attr('class', 'rect leaf_rect_entering')
-      .style('z-index', function(datum) { return datum.id * 2; })
-      .style('position', 'absolute')
-      .style('left', function(datum){ return datum.x; })
-      .style('top', function(datum){ return datum.y; })
-      .style('width', function(datum){ return datum.dx; })
-      .style('height', function(datum){ return datum.dy; })
-      .style('opacity', '0')
-      .style('background-color', function(datum) {
-        if (datum.t === undefined) return 'rgb(220,220,220)';
-        return D3SymbolTreeMap.getColorForType(datum.t)
-            .darker(0.3).toString();
-      })
-      .style('border', '1px solid black')
-      .on('mouseover', function(datum){
-        thisTreeMap._highlightElement.call(
-            thisTreeMap, datum, d3.select(this));
-        thisTreeMap._showInfoBox.call(thisTreeMap, datum);
-      })
-      .on('mouseout', function(datum){
-        thisTreeMap._unhighlightElement.call(
-            thisTreeMap, datum, d3.select(this));
-        thisTreeMap._hideInfoBox.call(thisTreeMap, datum);
-      })
-      .on('mousemove', function(){ thisTreeMap._moveInfoBox.call(
-        thisTreeMap, event);
-      });
-  cellsEnter
-      .append('div')
-      .attr('class', 'label leaf_label_entering')
-      .style('z-index', function(datum) { return (datum.id * 2) + 1; })
-      .style('position', 'absolute')
-      .style('left', function(datum){ return datum.x; })
-      .style('top', function(datum){ return datum.y; })
-      .style('width', function(datum) { return datum.dx; })
-      .style('height', function(datum) { return datum.dy; })
-      .style('opacity', '0')
-      .style('pointer-events', 'none')
-      .style('-webkit-user-select', 'none')
-      .style('overflow', 'hidden') // required for ellipsis
-      .style('white-space', 'nowrap') // required for ellipsis
-      .style('text-overflow', 'ellipsis')
-      .style('text-align', 'center')
-      .style('vertical-align', 'middle')
-      .style('visibility', function(datum) {
-        return (datum.dx < 15 || datum.dy < 15) ? 'hidden' : 'visible';
-      })
-      .text(function(datum) { return datum.n; });
-
-  // Complicated transition logic: See note in _handleInodes()
-  this._mapContainer.selectAll('div.leaf_rect_entering').transition()
-      .duration(thisTreeMap._enterDuration).delay(
-          this._firstTransition ? 0 : thisTreeMap._exitDuration +
-              thisTreeMap._updateDuration)
-      .attr('class', 'rect leaf_rect')
-      .style('opacity', '1')
-  this._mapContainer.selectAll('div.leaf_label_entering').transition()
-      .duration(thisTreeMap._enterDuration).delay(
-          this._firstTransition ? 0 : thisTreeMap._exitDuration +
-              thisTreeMap._updateDuration)
-      .attr('class', 'label leaf_label')
-      .style('opacity', '1')
-  this._mapContainer.selectAll('div.leaf_rect').transition()
-      .duration(thisTreeMap._updateDuration).delay(thisTreeMap._exitDuration)
-      .style('opacity', '1')
-      .style('left', function(datum){ return datum.x; })
-      .style('top', function(datum){ return datum.y; })
-      .style('width', function(datum){ return datum.dx; })
-      .style('height', function(datum){ return datum.dy; });
-  this._mapContainer.selectAll('div.leaf_label').transition()
-      .duration(thisTreeMap._updateDuration).delay(thisTreeMap._exitDuration)
-      .style('opacity', '1')
-      .style('visibility', function(datum) {
-          return (datum.dx < 15 || datum.dy < 15) ? 'hidden' : 'visible';
-      })
-      .style('left', function(datum){ return datum.x; })
-      .style('top', function(datum){ return datum.y; })
-      .style('width', function(datum) { return datum.dx; })
-      .style('height', function(datum) { return datum.dy; });
-  var exit = this._mapContainer.selectAll('div.leaf')
-      .data(leaves, function(datum) { return 'leaf-' + datum.id; })
-      .exit();
-  exit.selectAll('div.leaf_rect').transition()
-      .duration(thisTreeMap._exitDuration)
-      .style('opacity', 0);
-  exit.selectAll('div.leaf_label').transition()
-      .duration(thisTreeMap._exitDuration)
-      .style('opacity', 0);
-  exit.transition().delay(thisTreeMap._exitDuration + 1).remove();
-
-  console.log(leaves.length + ' leaves layed out.');
-  console.timeEnd('_handleLeaves');
-}
-
-D3SymbolTreeMap.prototype._makeSymbolBucketBackgroundImage = function(datum) {
-  if (!(datum.t === undefined && datum.depth == this._currentMaxDepth)) {
-    return 'none';
-  }
-  var text = '';
-  var lastStop = 0;
-  for (var x = 0; x < D3SymbolTreeMap._NM_SYMBOL_TYPES.length; x++) {
-    symbol_type = D3SymbolTreeMap._NM_SYMBOL_TYPES.charAt(x);
-    var stats = datum.symbol_stats[symbol_type];
-    if (stats !== undefined) {
-      if (text.length !== 0) {
-        text += ', ';
-      }
-      var percent = 100 * (stats.size / datum.value);
-      var nowStop = lastStop + percent;
-      var tempcolor = D3SymbolTreeMap.getColorForType(symbol_type);
-      var color = d3.rgb(tempcolor).toString();
-      text += color + ' ' + lastStop + '%, ' + color + ' ' +
-          nowStop + '%';
-      lastStop = nowStop;
-    }
-  }
-  return 'linear-gradient(' + (datum.dx > datum.dy ? 'to right' :
-                               'to bottom') + ', ' + text + ')';
-}
-
-D3SymbolTreeMap.prototype.pathFor = function(datum) {
-  if (datum.__path) return datum.__path;
-  parts=[];
-  node = datum;
-  while (node) {
-    if (node.k === 'p') { // path node
-      if(node.n !== '/') parts.unshift(node.n);
-    }
-    node = node.parent;
-  }
-  datum.__path = '/' + parts.join('/');
-  return datum.__path;
-}
-
-D3SymbolTreeMap.prototype._createHighlight = function(datum, selection) {
-  var x = parseInt(selection.style('left'));
-  var y = parseInt(selection.style('top'));
-  var w = parseInt(selection.style('width'));
-  var h = parseInt(selection.style('height'));
-  datum.highlight = this._mapContainer.append('div')
-      .attr('id', 'h-' + datum.id)
-      .attr('class', 'highlight')
-      .style('pointer-events', 'none')
-      .style('-webkit-user-select', 'none')
-      .style('z-index', '999999')
-      .style('position', 'absolute')
-      .style('top', y-2)
-      .style('left', x-2)
-      .style('width', w+4)
-      .style('height', h+4)
-      .style('margin', 0)
-      .style('padding', 0)
-      .style('border', '4px outset rgba(250,40,200,0.9)')
-      .style('box-sizing', 'border-box')
-      .style('opacity', 0.0);
-}
-
-D3SymbolTreeMap.prototype._showHighlight = function(datum, selection) {
-  if (datum === this._currentRoot) return;
-  if (datum.highlight === undefined) {
-    this._createHighlight(datum, selection);
-  }
-  datum.highlight.transition().duration(200).style('opacity', 1.0);
-}
-
-D3SymbolTreeMap.prototype._hideHighlight = function(datum, selection) {
-  if (datum.highlight === undefined) return;
-  datum.highlight.transition().duration(750)
-      .style('opacity', 0)
-      .each('end', function(){
-        if (datum.highlight) datum.highlight.remove();
-        delete datum.highlight;
-      });
-}
-
-D3SymbolTreeMap.prototype._createInfoBox = function() {
-  return d3.select('body')
-      .append('div')
-      .attr('id', 'infobox')
-      .style('z-index', '2147483647') // (2^31) - 1: Hopefully safe :)
-      .style('position', 'absolute')
-      .style('visibility', 'hidden')
-      .style('background-color', 'rgba(255,255,255, 0.9)')
-      .style('border', '1px solid black')
-      .style('padding', '10px')
-      .style('-webkit-user-select', 'none')
-      .style('box-shadow', '3px 3px rgba(70,70,70,0.5)')
-      .style('border-radius', '10px')
-      .style('white-space', 'nowrap');
-}
-
-D3SymbolTreeMap.prototype._showInfoBox = function(datum) {
-  this.infobox.text('');
-  var numSymbols = 0;
-  var sizeish = D3SymbolTreeMap._pretty(datum.value) + ' bytes (' +
-      D3SymbolTreeMap._byteify(datum.value) + ')';
-  if (datum.k === 'p' || datum.k === 'b') { // path or bucket
-    if (datum.symbol_stats) { // can be empty if filters are applied
-      for (var x = 0; x < D3SymbolTreeMap._NM_SYMBOL_TYPES.length; x++) {
-        symbol_type = D3SymbolTreeMap._NM_SYMBOL_TYPES.charAt(x);
-        var stats = datum.symbol_stats[symbol_type];
-        if (stats !== undefined) numSymbols += stats.count;
-      }
-    }
-  } else if (datum.k === 's') { // symbol
-    numSymbols = 1;
-  }
-
-  if (datum.k === 'p' && !datum.lastPathElement) {
-    this.infobox.append('div').text('Directory: ' + this.pathFor(datum))
-    this.infobox.append('div').text('Size: ' + sizeish);
-  } else {
-    if (datum.k === 'p') { // path
-      this.infobox.append('div').text('File: ' + this.pathFor(datum))
-      this.infobox.append('div').text('Size: ' + sizeish);
-    } else if (datum.k === 'b') { // bucket
-      this.infobox.append('div').text('Symbol Bucket: ' +
-          D3SymbolTreeMap._getSymbolDescription(datum.t));
-      this.infobox.append('div').text('Count: ' + numSymbols);
-      this.infobox.append('div').text('Size: ' + sizeish);
-      this.infobox.append('div').text('Location: ' + this.pathFor(datum))
-    } else if (datum.k === 's') { // symbol
-      this.infobox.append('div').text('Symbol: ' + datum.n);
-      this.infobox.append('div').text('Type: ' +
-          D3SymbolTreeMap._getSymbolDescription(datum.t));
-      this.infobox.append('div').text('Size: ' + sizeish);
-      this.infobox.append('div').text('Location: ' + this.pathFor(datum))
-    }
-  }
-  if (datum.k === 'p') {
-    this.infobox.append('div')
-        .text('Number of symbols: ' + D3SymbolTreeMap._pretty(numSymbols));
-    if (datum.symbol_stats) { // can be empty if filters are applied
-      var table = this.infobox.append('table')
-          .attr('border', 1).append('tbody');
-      var header = table.append('tr');
-      header.append('th').text('Type');
-      header.append('th').text('Count');
-      header.append('th')
-          .style('white-space', 'nowrap')
-          .text('Total Size (Bytes)');
-      for (var x = 0; x < D3SymbolTreeMap._NM_SYMBOL_TYPES.length; x++) {
-        symbol_type = D3SymbolTreeMap._NM_SYMBOL_TYPES.charAt(x);
-        var stats = datum.symbol_stats[symbol_type];
-        if (stats !== undefined) {
-          var tr = table.append('tr');
-          tr.append('td')
-              .style('white-space', 'nowrap')
-              .text(D3SymbolTreeMap._getSymbolDescription(
-                  symbol_type));
-          tr.append('td').text(D3SymbolTreeMap._pretty(stats.count));
-          tr.append('td').text(D3SymbolTreeMap._pretty(stats.size));
-        }
-      }
-    }
-  }
-  this.infobox.style('visibility', 'visible');
-}
-
-D3SymbolTreeMap.prototype._hideInfoBox = function(datum) {
-  this.infobox.style('visibility', 'hidden');
-}
-
-D3SymbolTreeMap.prototype._moveInfoBox = function(event) {
-  var element = document.getElementById('infobox');
-  var w = element.offsetWidth;
-  var h = element.offsetHeight;
-  var offsetLeft = 10;
-  var offsetTop = 10;
-
-  var rightLimit = window.innerWidth;
-  var rightEdge = event.pageX + offsetLeft + w;
-  if (rightEdge > rightLimit) {
-    // Too close to screen edge, reflect around the cursor
-    offsetLeft = -1 * (w + offsetLeft);
-  }
-
-  var bottomLimit = window.innerHeight;
-  var bottomEdge = event.pageY + offsetTop + h;
-  if (bottomEdge > bottomLimit) {
-    // Too close ot screen edge, reflect around the cursor
-    offsetTop = -1 * (h + offsetTop);
-  }
-
-  this.infobox.style('top', (event.pageY + offsetTop) + 'px')
-      .style('left', (event.pageX + offsetLeft) + 'px');
-}
-
-D3SymbolTreeMap.prototype.biggestSymbols = function(maxRecords) {
-  var result = undefined;
-  var smallest = undefined;
-  var sortFunction = function(a,b) {
-    var result = b.value - a.value;
-    if (result !== 0) return result; // sort by size
-    var pathA = treemap.pathFor(a); // sort by path
-    var pathB = treemap.pathFor(b);
-    if (pathA > pathB) return 1;
-    if (pathB > pathA) return -1;
-    return a.n - b.n; // sort by symbol name
-  };
-  this.visitFromDisplayedRoot(function(datum) {
-    if (datum.children) return; // ignore non-leaves
-    if (!result) { // first element
-      result = [datum];
-      smallest = datum.value;
-      return;
-    }
-    if (result.length < maxRecords) { // filling the array
-      result.push(datum);
-      return;
-    }
-    if (datum.value > smallest) { // array is already full
-      result.push(datum);
-      result.sort(sortFunction);
-      result.pop(); // get rid of smallest element
-      smallest = result[maxRecords - 1].value; // new threshold for entry
-    }
-  });
-  result.sort(sortFunction);
-  return result;
-}
-
-D3SymbolTreeMap.prototype.biggestPaths = function(maxRecords) {
-  var result = undefined;
-  var smallest = undefined;
-  var sortFunction = function(a,b) {
-    var result = b.value - a.value;
-    if (result !== 0) return result; // sort by size
-    var pathA = treemap.pathFor(a); // sort by path
-    var pathB = treemap.pathFor(b);
-    if (pathA > pathB) return 1;
-    if (pathB > pathA) return -1;
-    console.log('warning, multiple entries for the same path: ' + pathA);
-    return 0; // should be impossible
-  };
-  this.visitFromDisplayedRoot(function(datum) {
-    if (!datum.lastPathElement) return; // ignore non-files
-    if (!result) { // first element
-      result = [datum];
-      smallest = datum.value;
-      return;
-    }
-    if (result.length < maxRecords) { // filling the array
-      result.push(datum);
-      return;
-    }
-    if (datum.value > smallest) { // array is already full
-      result.push(datum);
-      result.sort(sortFunction);
-      result.pop(); // get rid of smallest element
-      smallest = result[maxRecords - 1].value; // new threshold for entry
-    }
-  });
-  result.sort(sortFunction);
-  return result;
-}