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comparison rhodecode/public/js/graph.js @ 547:1e757ac98988

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renamed project to rhodecode
author Marcin Kuzminski <marcin@python-works.com>
date Wed, 06 Oct 2010 03:18:16 +0200
parents pylons_app/public/js/graph.js@46b7d108ea7a
children 864e4daef963
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546:7c2f5e4d7bbf 547:1e757ac98988
1 // branch_renderer.js - Rendering of branch DAGs on the client side
2 //
3 // Copyright 2010 Marcin Kuzminski <marcin AT python-works DOT com>
4 // Copyright 2008 Jesper Noehr <jesper AT noehr DOT org>
5 // Copyright 2008 Dirkjan Ochtman <dirkjan AT ochtman DOT nl>
6 // Copyright 2006 Alexander Schremmer <alex AT alexanderweb DOT de>
7 //
8 // derived from code written by Scott James Remnant <scott@ubuntu.com>
9 // Copyright 2005 Canonical Ltd.
10 //
11 // This software may be used and distributed according to the terms
12 // of the GNU General Public License, incorporated herein by reference.
13
14 var colors = [
15 [ 1.0, 0.0, 0.0 ],
16 [ 1.0, 1.0, 0.0 ],
17 [ 0.0, 1.0, 0.0 ],
18 [ 0.0, 1.0, 1.0 ],
19 [ 0.0, 0.0, 1.0 ],
20 [ 1.0, 0.0, 1.0 ],
21 [ 1.0, 1.0, 0.0 ],
22 [ 0.0, 0.0, 0.0 ]
23 ];
24
25 function BranchRenderer() {
26
27 this.canvas = document.getElementById("graph_canvas");
28
29 if (navigator.userAgent.indexOf('MSIE') >= 0)
30 this.canvas = window.G_vmlCanvasManager.initElement(this.canvas);
31 this.ctx = this.canvas.getContext('2d');
32 this.ctx.strokeStyle = 'rgb(0, 0, 0)';
33 this.ctx.fillStyle = 'rgb(0, 0, 0)';
34 this.cur = [0, 0];
35 this.max_column = 1;
36 this.line_width = 2.5;
37 this.dot_radius = 5.5;
38 this.bg = [0, 4];
39 this.cell = [2, 0];
40 this.revlink = '';
41
42 this.scale = function(height) {
43 this.box_size = Math.floor(height/1.2);
44 this.cell_height = this.box_size;
45 this.bg_height = height;
46 }
47
48 this.setColor = function(color, bg, fg) {
49 color %= colors.length;
50 var red = (colors[color][0] * fg) || bg;
51 var green = (colors[color][1] * fg) || bg;
52 var blue = (colors[color][2] * fg) || bg;
53 red = Math.round(red * 255);
54 green = Math.round(green * 255);
55 blue = Math.round(blue * 255);
56 var s = 'rgb(' + red + ', ' + green + ', ' + blue + ')';
57 this.ctx.strokeStyle = s;
58 this.ctx.fillStyle = s;
59 }
60
61 this.render = function(data) {
62 var idx = 1;
63 var rela = document.getElementById('graph');
64 var pad = 160;
65 var scale = 22;
66
67 for (var i in data) {
68 this.scale(scale);
69 var row = document.getElementById("chg_"+idx);
70 var next = document.getElementById("chg_"+idx+1);
71 var extra = 0;
72
73 //skip this since i don't have DATE in my app
74 //if (next.is('.changesets-date')) {
75 // extra = next.outerHeight();
76 //}
77
78
79 this.cell[1] += row.clientWidth;
80 this.bg[1] += this.bg_height;
81
82 cur = data[i];
83 nodeid = cur[0];
84 node = cur[1];
85 in_l = cur[2];
86
87 for (var j in in_l) {
88
89 line = in_l[j];
90 start = line[0];
91 end = line[1];
92 color = line[2];
93
94 if (start > this.max_column) {
95 this.max_column = start;
96 }
97
98 if (end > this.max_column) {
99 this.max_column = end;
100 }
101
102 this.setColor(color, 0.0, 0.65);
103
104
105 y = row.offsetTop-rela.offsetTop+4;
106 x = pad-((this.cell[0] + this.box_size * start - 1) + this.bg_height-2);
107 this.ctx.lineWidth=this.line_width;
108 this.ctx.beginPath();
109 this.ctx.moveTo(x, y);
110
111 //i don't know why it's +1 just fixes some drawing graph.
112 y += row.clientHeight+1;
113 x = pad-((1 + this.box_size * end) + this.bg_height-2);
114 this.ctx.lineTo(x,y+extra,3);
115 this.ctx.stroke();
116 }
117
118 column = node[0]
119 color = node[1]
120
121 radius = this.dot_radius;
122 y = row.offsetTop-rela.offsetTop+4;
123 x = pad-(Math.round(this.cell[0] * scale/2 * column + radius) + 15 - (column*4));
124
125 this.ctx.beginPath();
126 this.setColor(color, 0.25, 0.75);
127 this.ctx.arc(x, y, radius, 0, Math.PI * 2, true);
128 this.ctx.fill();
129
130 idx++;
131 }
132
133 }
134
135 }