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comparison pylons_app/public/js/graph.js @ 288:ab1afe7444f3

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Initial graph release.
author Marcin Kuzminski <marcin@python-works.com>
date Wed, 23 Jun 2010 00:18:10 +0200
parents a86c8de926b4
children 1dbe02063123
comparison
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287:5827c739b0bd 288:ab1afe7444f3
1 // branch_renderer.js - Rendering of branch DAGs on the client side 1 // branch_renderer.js - Rendering of branch DAGs on the client side
2 // 2 //
3 // Copyright 2008 Jesper Noehr <jesper AT noehr DOT org>
3 // Copyright 2008 Dirkjan Ochtman <dirkjan AT ochtman DOT nl> 4 // Copyright 2008 Dirkjan Ochtman <dirkjan AT ochtman DOT nl>
4 // Copyright 2006 Alexander Schremmer <alex AT alexanderweb DOT de> 5 // Copyright 2006 Alexander Schremmer <alex AT alexanderweb DOT de>
5 // 6 //
6 // derived from code written by Scott James Remnant <scott@ubuntu.com> 7 // derived from code written by Scott James Remnant <scott@ubuntu.com>
7 // Copyright 2005 Canonical Ltd. 8 // Copyright 2005 Canonical Ltd.
13 [ 1.0, 0.0, 0.0 ], 14 [ 1.0, 0.0, 0.0 ],
14 [ 1.0, 1.0, 0.0 ], 15 [ 1.0, 1.0, 0.0 ],
15 [ 0.0, 1.0, 0.0 ], 16 [ 0.0, 1.0, 0.0 ],
16 [ 0.0, 1.0, 1.0 ], 17 [ 0.0, 1.0, 1.0 ],
17 [ 0.0, 0.0, 1.0 ], 18 [ 0.0, 0.0, 1.0 ],
18 [ 1.0, 0.0, 1.0 ] 19 [ 1.0, 0.0, 1.0 ],
20 [ 1.0, 1.0, 0.0 ],
21 [ 0.0, 0.0, 0.0 ]
19 ]; 22 ];
20 23
21 function Graph() { 24 function BranchRenderer() {
22 25
23 this.canvas = document.getElementById('graph'); 26 this.canvas = document.getElementById("graph_canvas");
24 if (navigator.userAgent.indexOf('MSIE') >= 0) this.canvas = window.G_vmlCanvasManager.initElement(this.canvas); 27
28 //if ($.browser.msie)
29 // this.canvas = window.G_vmlCanvasManager.initElement(this.canvas);
25 this.ctx = this.canvas.getContext('2d'); 30 this.ctx = this.canvas.getContext('2d');
26 this.ctx.strokeStyle = 'rgb(0, 0, 0)'; 31 this.ctx.strokeStyle = 'rgb(0, 0, 0)';
27 this.ctx.fillStyle = 'rgb(0, 0, 0)'; 32 this.ctx.fillStyle = 'rgb(0, 0, 0)';
28 this.cur = [0, 0]; 33 this.cur = [0, 0];
34 this.max_column = 1;
29 this.line_width = 3; 35 this.line_width = 3;
30 this.bg = [0, 4]; 36 this.bg = [0, 4];
31 this.cell = [2, 0]; 37 this.cell = [2, 0];
32 this.columns = 0;
33 this.revlink = ''; 38 this.revlink = '';
34 39
35 this.scale = function(height) { 40 this.scale = function(height) {
41 this.box_size = Math.floor(height/1.2);
42 this.cell_height = this.box_size;
36 this.bg_height = height; 43 this.bg_height = height;
37 this.box_size = Math.floor(this.bg_height / 1.2);
38 this.cell_height = this.box_size;
39 } 44 }
40 45
41 function colorPart(num) {
42 num *= 255
43 num = num < 0 ? 0 : num;
44 num = num > 255 ? 255 : num;
45 var digits = Math.round(num).toString(16);
46 if (num < 16) {
47 return '0' + digits;
48 } else {
49 return digits;
50 }
51 }
52
53 this.setColor = function(color, bg, fg) { 46 this.setColor = function(color, bg, fg) {
54
55 // Set the colour.
56 //
57 // Picks a distinct colour based on an internal wheel; the bg
58 // parameter provides the value that should be assigned to the 'zero'
59 // colours and the fg parameter provides the multiplier that should be
60 // applied to the foreground colours.
61
62 color %= colors.length; 47 color %= colors.length;
63 var red = (colors[color][0] * fg) || bg; 48 var red = (colors[color][0] * fg) || bg;
64 var green = (colors[color][1] * fg) || bg; 49 var green = (colors[color][1] * fg) || bg;
65 var blue = (colors[color][2] * fg) || bg; 50 var blue = (colors[color][2] * fg) || bg;
66 red = Math.round(red * 255); 51 red = Math.round(red * 255);
67 green = Math.round(green * 255); 52 green = Math.round(green * 255);
68 blue = Math.round(blue * 255); 53 blue = Math.round(blue * 255);
69 var s = 'rgb(' + red + ', ' + green + ', ' + blue + ')'; 54 var s = 'rgb(' + red + ', ' + green + ', ' + blue + ')';
70 this.ctx.strokeStyle = s; 55 this.ctx.strokeStyle = s;
71 this.ctx.fillStyle = s; 56 this.ctx.fillStyle = s;
72 return s;
73
74 } 57 }
75 58
76 this.render = function(data) { 59 this.render = function(data) {
77 60 var idx = 1;
78 var backgrounds = ''; 61 var rela = document.getElementById('graph');
79 var nodedata = ''; 62 var pad = 160;
63 var scale = 20;
80 64
81 for (var i in data) { 65 for (var i in data) {
66 this.scale(scale);
67 var row = document.getElementById("chg_"+idx);
68 var next = document.getElementById("chg_"+idx+1);
69 var extra = 0;
82 70
83 var parity = i % 2; 71 //skip this since i don't have DATE in my app
84 this.cell[1] += this.bg_height; 72 //if (next.is('.changesets-date')) {
73 // extra = next.outerHeight();
74 //}
75
76
77 this.cell[1] += row.clientWidth;
85 this.bg[1] += this.bg_height; 78 this.bg[1] += this.bg_height;
86 79
87 var cur = data[i]; 80 cur = data[i];
88 var node = cur[1]; 81 nodeid = cur[0];
89 var edges = cur[2]; 82 node = cur[1];
90 var fold = false; 83 in_l = cur[2];
91 84
92 for (var j in edges) { 85 for (var j in in_l) {
93 86
94 line = edges[j]; 87 line = in_l[j];
95 start = line[0]; 88 start = line[0];
96 end = line[1]; 89 end = line[1];
97 color = line[2]; 90 color = line[2];
98 91
99 if (end > this.columns || start > this.columns) { 92 if (start > this.max_column) {
100 this.columns += 1; 93 this.max_column = start;
101 } 94 }
102 95
103 if (start == this.columns && start > end) { 96 if (end > this.max_column) {
104 var fold = true; 97 this.max_column = end;
105 } 98 }
106 99
107 x0 = this.cell[0] + this.box_size * start + this.box_size / 2; 100 this.setColor(color, 0.0, 0.65);
108 y0 = this.bg[1] - this.bg_height / 2;
109 x1 = this.cell[0] + this.box_size * end + this.box_size / 2;
110 y1 = this.bg[1] + this.bg_height / 2;
111 101
112 this.edge(x0, y0, x1, y1, color);
113 102
103 y = row.offsetTop-rela.offsetTop+4;
104 x = pad-((this.cell[0] + this.box_size * start - 1) + this.bg_height-2);
105 this.ctx.beginPath();
106 this.ctx.moveTo(x, y);
107
108 y += row.clientHeight;
109 x = pad-((1 + this.box_size * end) + this.bg_height-2);
110 this.ctx.lineTo(x,y+extra);
111 this.ctx.stroke();
114 } 112 }
115
116 // Draw the revision node in the right column
117 113
118 column = node[0] 114 column = node[0]
119 color = node[1] 115 color = node[1]
120 116
121 radius = this.box_size / 8; 117 radius = 4;
122 x = this.cell[0] + this.box_size * column + this.box_size / 2; 118 y = row.offsetTop-rela.offsetTop+4;
123 y = this.bg[1] - this.bg_height / 2; 119 x = pad-(Math.round(this.cell[0] * scale/2 * column + radius) + 15 - (column*4));
124 var add = this.vertex(x, y, color, parity, cur); 120
125 backgrounds += add[0]; 121 this.ctx.beginPath();
126 nodedata += add[1]; 122 this.setColor(color, 0.25, 0.75);
123 this.ctx.arc(x, y, radius, 0, Math.PI * 2, true);
124 this.ctx.fill();
127 125
128 if (fold) this.columns -= 1; 126 idx++;
129
130 } 127 }
131 128
132 document.getElementById('nodebgs').innerHTML += backgrounds;
133 document.getElementById('graphnodes').innerHTML += nodedata;
134
135 } 129 }
136 130
137 } 131 }