function packages_treemap(chart_id, orderings, default_order) { var jq_div = $(chart_id), color = d3.scale.category20(); key_func = function(d) { return d.key; }, value_package_count = function(d) { return d.count; }; var treemap = d3.layout.treemap() .size([jq_div.width(), jq_div.height()]) /*.sticky(true)*/ .value(value_package_count) .sort(function(a, b) { return a.key < b.key; }) .children(function(d) { return d.data; }); var cell_html = function(d) { if (d.children) { return ""; } return "" + d.name + ": " + treemap.value()(d) + ""; }; var d3_div = d3.select(jq_div.get(0)); var prop_px = function(prop, offset) { return function(d) { var dist = d[prop] + offset; if (dist > 0) return dist + "px"; else return "0px"; }; }; var cell = function() { /* the -1 offset comes from the border width we use in the CSS */ this.style("left", prop_px("x", 0)).style("top", prop_px("y", 0)) .style("width", prop_px("dx", -1)).style("height", prop_px("dy", -1)); }; var fetch_for_ordering = function(order) { d3.json(order.url, function(json) { var nodes = d3_div.data([json]).selectAll("div").data(treemap.nodes, key_func); /* start out new nodes in the center of the picture area */ var w_center = jq_div.width() / 2; var h_center = jq_div.height() / 2; nodes.enter().append("div") .attr("class", "treemap-cell") .attr("title", function(d) { return d.name; }) .style("left", w_center + "px").style("top", h_center + "px") .style("width", "0px").style("height", "0px") .style("display", function(d) { return d.children ? "none" : null; }) .html(cell_html); nodes.transition().duration(1500) .style("background-color", function(d) { return d.children ? null : color(d[order.color_attr]); }) .call(cell); nodes.exit().transition().duration(1500).remove(); }); }; /* start the callback for the default order */ fetch_for_ordering(orderings[default_order]); var make_scale_button = function(name, valuefunc) { var button_id = chart_id + "-" + name; /* upon button click, attach new value function and redraw all boxes * accordingly */ d3.select(button_id).on("click", function() { d3_div.selectAll("div") .data(treemap.value(valuefunc), key_func) .html(cell_html) .transition().duration(1500).call(cell); /* drop off the '#' sign to convert id to a class prefix */ d3.selectAll("." + chart_id.substring(1) + "-scaleby") .classed("active", false); d3.select(button_id).classed("active", true); }); }; /* each scale button tweaks our value, e.g. net size function */ make_scale_button("count", value_package_count); make_scale_button("flagged", function(d) { return d.flagged; }); make_scale_button("csize", function(d) { return d.csize; }); make_scale_button("isize", function(d) { return d.isize; }); var make_group_button = function(name, order) { var button_id = chart_id + "-" + name; d3.select(button_id).on("click", function() { fetch_for_ordering(order); /* drop off the '#' sign to convert id to a class prefix */ d3.selectAll("." + chart_id.substring(1) + "-groupby") .classed("active", false); d3.select(button_id).classed("active", true); }); }; $.each(orderings, function(k, v) { make_group_button(k, v); }); var resize_timeout = null; var real_resize = function() { resize_timeout = null; d3_div.selectAll("div") .data(treemap.size([jq_div.width(), jq_div.height()]), key_func) .call(cell); }; $(window).resize(function() { if (resize_timeout) { clearTimeout(resize_timeout); } resize_timeout = setTimeout(real_resize, 200); }); }