2014-10-03 02:43:56 +00:00
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/*
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The MIT License (MIT)
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Copyright (c) 2014 Alex Yatskov
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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2014-09-27 01:10:45 +00:00
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(function(grapher) {
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2014-09-28 07:58:56 +00:00
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'use strict';
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2014-09-27 01:10:45 +00:00
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//
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// Coord
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//
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2014-09-27 01:05:48 +00:00
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2014-09-27 01:10:45 +00:00
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function Coord(x, y) {
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this.x = x;
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this.y = y;
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}
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2014-09-27 01:05:48 +00:00
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2014-09-27 01:10:45 +00:00
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//
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// Rect
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//
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2014-09-27 01:05:48 +00:00
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2014-09-27 01:10:45 +00:00
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function Rect(left, top, width, height) {
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this.left = left;
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this.top = top;
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this.width = width;
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this.height = height;
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this.right = left + width;
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this.bottom = top + height;
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2014-09-27 01:05:48 +00:00
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2014-09-27 01:10:45 +00:00
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this.contains = function(coord) {
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var contained =
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coord.x >= this.left &&
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coord.x < this.right &&
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coord.y >= this.top &&
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coord.y < this.bottom;
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2014-09-27 01:05:48 +00:00
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2014-09-27 01:10:45 +00:00
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return contained;
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};
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2014-09-27 01:05:48 +00:00
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2014-09-27 01:10:45 +00:00
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this.intersection = function(rect) {
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var left = Math.max(this.left, rect.left);
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var top = Math.max(this.top, rect.top);
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var right = Math.min(this.right, rect.right);
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var bottom = Math.min(this.bottom, rect.bottom);
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2014-09-27 01:05:48 +00:00
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2014-09-27 01:10:45 +00:00
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return new Rect(left, top, right - left, bottom - top);
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};
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}
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2014-09-27 01:05:48 +00:00
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2014-09-27 01:10:45 +00:00
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//
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// Range
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//
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2014-09-27 01:05:48 +00:00
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2014-09-27 01:10:45 +00:00
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function Range(start, end) {
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this.start = start;
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this.end = end;
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2014-09-27 01:05:48 +00:00
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2014-09-27 01:10:45 +00:00
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this.containsPoint = function(value) {
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return value >= this.start && value <= this.end;
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};
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this.getLength = function() {
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return this.end - this.start;
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};
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2014-09-27 01:05:48 +00:00
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2014-09-27 01:10:45 +00:00
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this.clamp = function(value) {
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if (value < this.start) {
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return this.start;
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}
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2014-09-27 01:05:48 +00:00
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if (value > this.end) {
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return this.end;
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}
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2014-09-27 01:05:48 +00:00
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2014-09-27 01:10:45 +00:00
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return value;
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2014-09-28 07:58:56 +00:00
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};
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2014-09-27 01:05:48 +00:00
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}
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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//
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// Column
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//
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2014-07-08 04:35:52 +00:00
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2014-10-31 01:15:37 +00:00
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function Column(canvas, name, params, scale, range) {
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this.updateShapes = function(final) {
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2014-09-28 07:58:56 +00:00
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};
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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this.decimateHints = function(steps, scale) {
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var groups = this.groupHints(steps);
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2014-08-30 02:44:35 +00:00
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2014-09-27 01:10:45 +00:00
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var colorStops = {};
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_.each(groups, function(count, index) {
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var colorPercent = 0;
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if (scale.getLength() > 0) {
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colorPercent = Math.max(0, count - scale.start) / scale.getLength();
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}
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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var colorByte = 0xff - Math.min(0xff, Math.round(0xff * colorPercent));
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var colorObj = tinycolor({ r: colorByte, g: colorByte, b: colorByte });
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var colorStr = colorObj.toHexString();
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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colorStops[index / steps] = colorStr;
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});
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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return colorStops;
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2014-09-28 07:58:56 +00:00
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};
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2014-09-27 01:10:45 +00:00
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this.groupHints = function(steps) {
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var stepSize = this.range.getLength() / steps;
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2014-09-27 01:10:45 +00:00
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var hintGroups = [];
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for (var i = 0; i < steps; ++i) {
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var stepMax = this.range.end - stepSize * i;
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var stepMin = stepMax - stepSize;
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2014-09-27 01:10:45 +00:00
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var hintCount = 0;
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2014-09-28 07:58:56 +00:00
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for (var j = 0, count = this.hints.length; j < count; ++j) {
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var hint = this.hints[j];
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2014-09-27 01:10:45 +00:00
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if (hint.sample > stepMin && hint.sample <= stepMax) {
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hintCount += hint.count;
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}
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2014-09-28 07:58:56 +00:00
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}
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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hintGroups.push(hintCount);
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}
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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return hintGroups;
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2014-09-28 07:58:56 +00:00
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};
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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this.setClampedValue = function(value, final) {
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this.value = this.range.clamp(value);
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this.updateShapes(final);
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2014-09-27 01:10:45 +00:00
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if (this.onValueChanged && final) {
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this.onValueChanged(this.name, this.value);
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}
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2014-09-28 07:58:56 +00:00
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};
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2014-07-08 04:35:52 +00:00
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2014-10-15 07:26:47 +00:00
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this.updateParams = function(params, scale) {
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this.hints = params.hints;
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this.value = params.value;
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this.steps = params.steps;
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2014-09-27 01:10:45 +00:00
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this.scale = scale;
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this.updateShapes(true);
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2014-09-28 07:58:56 +00:00
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};
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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this.valueColorAdjust = function(color, offset) {
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var colorObj = tinycolor(color);
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var rangeEnd = this.value >= 0.0 ? this.range.end : this.range.start;
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var rangeMid = (this.range.start + this.range.end) / 2.0;
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var rangeRat = (this.value - rangeMid) / (rangeEnd - rangeMid);
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var desatVal = Math.max(0.0, 1.0 - rangeRat + offset) * 100.0;
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return colorObj.desaturate(desatVal).toHexString();
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2014-09-28 07:58:56 +00:00
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};
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2014-09-25 09:56:04 +00:00
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2014-09-27 01:10:45 +00:00
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this.getFillColor = function() {
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var color = this.value >= 0.0 ? this.fillColorPos : this.fillColorNeg;
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return this.valueColorAdjust(color, this.desatOffset);
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2014-09-28 07:58:56 +00:00
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};
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2014-09-25 07:47:56 +00:00
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2014-09-27 01:10:45 +00:00
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this.getHandleColor = function() {
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var color = this.value >= 0.0 ? this.handleColorPos : this.handleColorNeg;
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return this.valueColorAdjust(color, this.desatOffset);
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2014-09-28 07:58:56 +00:00
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};
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2014-09-25 07:47:56 +00:00
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2014-09-27 01:10:45 +00:00
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this.State = {
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NORMAL: 0,
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HOVER: 1,
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DRAG: 2
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};
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this.handleSize = 10;
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this.desatOffset = -0.3;
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this.hintSize = 10;
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this.labelFontSize = 15;
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this.labelSize = 20;
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this.tickLength = 5;
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this.emptyColor = '#eeeeec';
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this.strokeColor = '#d3d7cf';
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this.tickColor = '#888a85';
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this.fillColorNeg = '#3465a4';
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this.fillColorPos = '#cc0000';
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this.handleColorNeg = '#204a87';
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this.handleColorPos = '#a40000';
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this.canvas = canvas;
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this.shapes = [];
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this.name = name;
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this.value = params.value;
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this.hints = params.hints;
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this.steps = params.steps;
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this.scale = scale;
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this.range = range;
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this.bounds = bounds;
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this.state = this.State.NORMAL;
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this.updateShapes(true);
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2014-07-08 04:35:52 +00:00
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}
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2014-09-27 01:10:45 +00:00
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//
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// Grapher
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//
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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grapher.Grapher = function(canvas, range, columnWidth, useLocalScale, useRelativeScale) {
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this.setColumns = function(columns) {
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this.clearColumns();
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2014-09-16 02:17:33 +00:00
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2014-09-27 01:10:45 +00:00
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var scale = 0;
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if (!useLocalScale) {
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var hintData = {};
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_.each(columns, function(columnValue, columnName) {
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hintData[columnName] = columnValue.hints || [];
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});
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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scale = this.getGlobalScale(hintData);
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}
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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var index = 0;
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var that = this;
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2014-09-27 01:10:45 +00:00
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_.each(columns, function(columnValue, columnName) {
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if (useLocalScale) {
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scale = that.getLocalScale(columnValue.hints);
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}
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2014-07-08 04:35:52 +00:00
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2014-10-31 01:15:37 +00:00
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that.columns.push(new Column(that.canvas, columnName, columnValue, scale, that.range));
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2014-09-27 01:10:45 +00:00
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that.indexMap[columnName] = index++;
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});
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2014-09-28 07:58:56 +00:00
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};
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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this.clearColumns = function() {
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_.each(this.columns, function(column) {
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column.clearShapes();
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});
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this.columns = [];
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this.indexMap = {};
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2014-09-28 07:58:56 +00:00
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};
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2014-07-08 04:35:52 +00:00
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2014-10-15 07:26:47 +00:00
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this.updateColumns = function(data) {
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2014-09-27 01:10:45 +00:00
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var scale = 0;
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if (!this.useLocalScale) {
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scale = this.getGlobalScale(hintData);
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2014-07-08 04:35:52 +00:00
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}
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2014-10-15 07:26:47 +00:00
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var that = this;
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_.each(data, function(entry, name) {
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2014-09-27 01:10:45 +00:00
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if (that.useLocalScale) {
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2014-10-15 07:26:47 +00:00
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scale = that.getLocalScale(entry.hints);
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2014-09-27 01:10:45 +00:00
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}
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2014-10-31 01:15:37 +00:00
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var index = that.getColumnIndex(name);
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2014-10-15 07:26:47 +00:00
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var column = that.columns[index];
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column.updateParams(entry, scale);
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2014-09-27 01:10:45 +00:00
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});
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2014-09-28 07:58:56 +00:00
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};
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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this.setUseLocalScale = function(useLocalScale) {
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if (useLocalScale != this.useLocalScale) {
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this.useLocalScale = useLocalScale;
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this.invalidateHints();
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}
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2014-09-28 07:58:56 +00:00
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};
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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this.setUseRelativeScale = function(useRelativeScale) {
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if (useRelativeScale != this.useRelativeScale) {
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this.useRelativeScale = useRelativeScale;
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this.invalidateHints();
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}
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2014-09-28 07:58:56 +00:00
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};
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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this.invalidateHints = function() {
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var hintData = {};
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_.each(this.columns, function(column) {
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hintData[column.name] = column.hints;
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});
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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this.setColumnHints(hintData);
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2014-09-28 07:58:56 +00:00
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};
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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this.setValueChangedListener = function(listener) {
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_.each(this.columns, function(column) {
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column.onValueChanged = listener;
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});
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2014-09-28 07:58:56 +00:00
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};
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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this.getLocalScale = function(hints) {
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var counts = _.pluck(hints, 'count');
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var min = this.useRelativeScale ? _.min(counts) : 0;
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return new Range(min, _.max(counts));
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2014-09-28 07:58:56 +00:00
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};
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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this.getGlobalScale = function(hintData) {
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var that = this;
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var globalScale = null;
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2014-07-08 04:35:52 +00:00
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2014-09-27 01:10:45 +00:00
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_.each(hintData, function(hints) {
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var localScale = that.getLocalScale(hints);
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if (globalScale) {
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globalScale.includeRange(localScale);
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}
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else {
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globalScale = localScale;
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}
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});
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2014-07-08 04:35:52 +00:00
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|
2014-09-27 01:10:45 +00:00
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return globalScale;
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2014-09-28 07:58:56 +00:00
|
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};
|
2014-07-08 04:35:52 +00:00
|
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|
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2014-09-27 01:10:45 +00:00
|
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this.getColumnCount = function() {
|
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|
return this.columns.length;
|
2014-09-28 07:58:56 +00:00
|
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};
|
2014-07-08 04:35:52 +00:00
|
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|
2014-09-27 01:10:45 +00:00
|
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this.getColumnIndex = function(name) {
|
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|
|
return this.indexMap[name];
|
2014-09-28 07:58:56 +00:00
|
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};
|
2014-07-08 04:35:52 +00:00
|
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|
2014-09-27 01:10:45 +00:00
|
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this.getColumnName = function(index) {
|
|
|
|
return this.columns[index].name;
|
2014-09-28 07:58:56 +00:00
|
|
|
};
|
2014-07-08 04:35:52 +00:00
|
|
|
|
2014-09-27 01:10:45 +00:00
|
|
|
this.getColumnNames = function() {
|
|
|
|
return _.pluck(this.columns, 'name');
|
2014-09-28 07:58:56 +00:00
|
|
|
};
|
2014-07-08 04:35:52 +00:00
|
|
|
|
2014-09-27 01:10:45 +00:00
|
|
|
this.useLocalScale = useLocalScale;
|
|
|
|
this.useRelativeScale = useRelativeScale;
|
|
|
|
this.columnWidth = columnWidth;
|
2014-10-30 10:20:46 +00:00
|
|
|
this.canvas = null;
|
2014-09-27 01:10:45 +00:00
|
|
|
this.range = new Range(range.min, range.max);
|
|
|
|
this.padding = 10;
|
|
|
|
this.indexMap = {};
|
|
|
|
this.columns = [];
|
2014-09-28 07:58:56 +00:00
|
|
|
};
|
2014-09-27 01:10:45 +00:00
|
|
|
}(window.grapher = window.grapher || {}));
|