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Adds legend to line graph w/ hover & toggle #8

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Adds legend to line graph w/ hover & toggle #8

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157 changes: 149 additions & 8 deletions compiled/charts.js
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,8 @@ if (global.module == undefined) {
LineChartOptions = (function() {

LineChartOptions.DEFAULTS = {
show_line: true,
show_legend: false,
dot_size: 5,
dot_color: "#00aadd",
dot_stroke_color: "#fff",
Expand Down Expand Up @@ -1112,6 +1114,9 @@ Line = (function() {
this.height = height;
this.width = width;
this.options = options != null ? options : {};
this.glow_elements = [];
this.line_set = this.r.set();
this.visible = options['show_line'] === true ? true : false;
}

Line.prototype.draw = function() {
Expand All @@ -1124,33 +1129,41 @@ Line = (function() {
if (this.options.dot_size > 0) {
this.draw_dots_and_tooltips(this.scaled_points, this.raw_points);
}
this.line_set.push(path);
this.line_set.hover(function() {
return this.glow();
}, function() {
return this.remove_glow();
}, this, this);
};

Line.prototype.draw_curve = function(path) {
var curve;
curve = this.r.path(path);
return curve.attr({
curve.attr({
"stroke": this.options.line_color,
"stroke-width": this.options.line_width
}).toFront();
this.line_set.push(curve);
return curve;
};

Line.prototype.draw_area = function(path) {
var area, final_point, first_point, padded_height, points;
var final_point, first_point, padded_height, points;
points = this.scaled_points;
padded_height = this.height - this.options.y_padding;
final_point = points[points.length - 1];
first_point = points[0];
path += "L " + final_point.x + ", " + padded_height + " ";
path += "L " + first_point.x + ", " + padded_height + " ";
path += "Z";
area = this.r.path(path);
area.attr({
this.area = this.r.path(path);
this.area.attr({
"fill": this.options.area_color,
"fill-opacity": this.options.area_opacity,
"stroke": "none"
});
return area.toBack();
return this.area.toBack();
};

Line.prototype.draw_dots_and_tooltips = function() {
Expand All @@ -1174,8 +1187,10 @@ Line = (function() {
options.hover_enabled = !raw_point.options.show_dot;
dot = new Dot(this.r, point, options);
tooltip = new Tooltip(this.r, dot.element, raw_point.options.tooltip || raw_point.y, options.hover_enabled);
tooltip.hide();
dots.push(dot);
tooltips.push(tooltip);
this.line_set.push(dot.element);
if (raw_point.options.no_dot === true) {
dot.hide();
}
Expand All @@ -1194,6 +1209,49 @@ Line = (function() {
}
};

Line.prototype.hide = function() {
this.area.hide();
this.line_set.hide();
this.remove_glow();
return this.visible = false;
};

Line.prototype.show = function() {
this.area.show();
this.line_set.show();
return this.visible = true;
};

Line.prototype.toggle = function() {
if (this.visible) {
return this.hide();
} else {
return this.show();
}
};

Line.prototype.glow = function() {
if (!this.visible) {
return;
}
return this.line_set.forEach(function(item) {
return this.glow_elements.push(item.glow({
opacity: 0.1
}));
}, this);
};

Line.prototype.remove_glow = function() {
var i, _i, _len, _ref, _results;
_ref = this.glow_elements;
_results = [];
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
i = _ref[_i];
_results.push(i.remove());
}
return _results;
};

return Line;

})();
Expand Down Expand Up @@ -1646,6 +1704,8 @@ LineChart = (function(_super) {
this.all_points = [];
this.line_indices = [];
this.line_options = [];
this.lines = [];
this.legend = this.r.set();
}

LineChart.prototype.add_line = function(args) {
Expand Down Expand Up @@ -1885,11 +1945,17 @@ LineChart = (function(_super) {
};

LineChart.prototype.draw_line = function(raw_points, points, options) {
var line;
if (this.options.render === "bar") {
return new LineBar(this.r, raw_points, points, this.height, this.width, options).draw();
line = new LineBar(this.r, raw_points, points, this.height, this.width, options);
} else {
return new Line(this.r, raw_points, points, this.height, this.width, options).draw();
line = new Line(this.r, raw_points, points, this.height, this.width, options);
}
line.draw();
if (!options['show_line']) {
line.hide();
}
return this.lines.push(line);
};

LineChart.prototype.clear = function() {
Expand All @@ -1910,7 +1976,7 @@ LineChart = (function(_super) {
for (i = _i = 0, _len = _ref1.length; _i < _len; i = ++_i) {
line_indices = _ref1[i];
begin = line_indices[0], end = line_indices[1];
raw_points = this.all_points.slice(begin, end + 1 || 9e9);
raw_points = this.all_points.slice(begin, +end + 1 || 9e9);
if (this.options.multi_axis) {
_ref2 = this.all_points.length > 2 ? this.create_scalers(raw_points) : this.create_scalers_for_single_point(), line_x = _ref2[0], line_y = _ref2[1];
} else {
Expand Down Expand Up @@ -1946,6 +2012,81 @@ LineChart = (function(_super) {
}
}
}
if (this.options['show_legend']) {
this.draw_legend();
}
};

LineChart.prototype.draw_legend = function() {
var count, current_x, label, legend_x, legend_y, line_name, line_option, set, thumbnail, _i, _len, _ref;
this.legend.clear();
current_x = 0;
_ref = this.line_options;
for (count = _i = 0, _len = _ref.length; _i < _len; count = ++_i) {
line_option = _ref[count];
set = this.r.set();
thumbnail = this.r.rect(current_x, 1, 15, 10).attr({
fill: line_option['line_color'],
stroke: line_option['line_color'],
cursor: 'pointer',
'stroke-opacity': 0
});
thumbnail.line = this.lines[count];
if (line_option['show_line']) {
thumbnail.full = true;
} else {
thumbnail.attr({
'stroke-opacity': 1,
'fill-opacity': 0
});
thumbnail.full = false;
}
set.push(thumbnail);
this.legend.push(thumbnail);
current_x += 23;
line_name = line_option['line_name'] || 'Line ' + count;
label = this.r.text(current_x, 0, line_name);
label.attr({
fill: '#333',
cursor: 'pointer',
'font-size': 10,
'font-weight': 'normal',
'text-anchor': 'start',
'font-family': 'Helvetica'
});
label.line = this.lines[count];
label.thumbnail = thumbnail;
label.transform("...t0," + (label.getBBox()['y'] * -1));
current_x += label.getBBox()['width'] + 25;
set.push(label);
this.legend.push(label);
set.hover(function() {
return this.line.glow();
}, function() {
return this.line.remove_glow();
});
set.click(function() {
this.line.toggle();
this.line.glow();
thumbnail = this.thumbnail || this;
if (thumbnail.full) {
thumbnail.attr({
'stroke-opacity': 1,
'fill-opacity': 0
});
return thumbnail.full = false;
} else {
thumbnail.attr({
'stroke-opacity': 0,
'fill-opacity': 1
});
return thumbnail.full = true;
}
});
}
legend_x = this.width - (this.legend.getBBox()['width'] + this.options.x_padding);
legend_y = (this.options.y_padding / 2) - (this.legend.getBBox()['height'] / 2);
return this.legend.transform("...t" + legend_x + "," + legend_y);
};

return LineChart;
Expand Down
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