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/* Programming contest management system | ||
* Copyright © 2012 Luca Wehrstedt <[email protected]> | ||
* | ||
* This program is free software: you can redistribute it and/or modify | ||
* it under the terms of the GNU Affero General Public License as | ||
* published by the Free Software Foundation, either version 3 of the | ||
* License, or (at your option) any later version. | ||
* | ||
* This program is distributed in the hope that it will be useful, | ||
* but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
* GNU Affero General Public License for more details. | ||
* | ||
* You should have received a copy of the GNU Affero General Public License | ||
* along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
*/ | ||
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var Chart = new function () { | ||
var self = this; | ||
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self.draw_chart = function (canvas, y_min, y_max, y_def, h_def, x_int, data, color, marks) { | ||
// canvas is the context | ||
/* | ||
canvas (GWTCanvas): the canvas this chart will be drawn on | ||
y_min (float): the y value corresponding to the bottom of the chart | ||
y_max (float): the y value corresponding to the top of the chart | ||
(note: y_min can be grater than y_max - the chart will be upside-down) | ||
y_def (float): the default y value (the line will start at that value) | ||
h_def (float): the default height of the colored area | ||
x_int (list of tuples of float): the list of x intervals to be drawn, | ||
in the form [begin, end) | ||
data (list of tuples of float): the data to be drawn, in the form (x, y, h) | ||
color (tuple of int): the r, g and b components of the color for the line | ||
marks (list of float): the y values at which horizontal lines will be drawn | ||
*/ | ||
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// width and height | ||
var wid = canvas.width; | ||
var hei = canvas.height; | ||
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// the padding around the chart | ||
var pad_l = 22; | ||
var pad_r = 1; | ||
var pad_t = 6; | ||
var pad_b = 6; | ||
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// the intervals of allowed x values | ||
var x_size = 0; | ||
for (var i in x_int) { | ||
x_size += x_int[i][1] - x_int[i][0]; | ||
} | ||
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// convert values to canvas coordinates | ||
var get_x = function (x) { | ||
return pad_l + x * (wid - pad_l - pad_r) / x_size; | ||
}; | ||
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var get_y = function (y) { | ||
return pad_t + (y_max - y) * (hei - pad_t - pad_b) / (y_max - y_min == 0? 1: y_max - y_min); | ||
}; | ||
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// clear the canvas | ||
canvas.width = wid; | ||
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// get the context | ||
var context = canvas.getContext("2d"); | ||
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// draw the axes | ||
context.lineWidth = 2; | ||
context.strokeStyle = "#dddddd"; | ||
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context.beginPath(); | ||
context.moveTo(pad_l, pad_t); | ||
context.lineTo(pad_l, hei - pad_b); | ||
context.lineTo(wid - pad_r, hei - pad_b); | ||
context.lineTo(wid - pad_r, pad_t); | ||
context.stroke(); | ||
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// draw horizontal markers | ||
context.lineWidth = 1; | ||
context.moveTo(pad_l, pad_t); | ||
context.lineTo(wid - pad_r, pad_t); | ||
context.stroke(); | ||
for (var i in marks) { | ||
context.beginPath(); | ||
context.moveTo(get_x(0), get_y(marks[i])); | ||
context.lineTo(get_x(x_size), get_y(marks[i])); | ||
context.stroke(); | ||
} | ||
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// draw labels on the axes | ||
context.fillStyle = "#000000"; | ||
context.textAlign = "right"; | ||
context.textBaseline = "middle"; | ||
if (y_min != y_max) | ||
context.fillText(y_min.toString(), 18, hei - pad_b); | ||
context.fillText(y_max.toString(), 18, pad_t); | ||
for (var i in marks) { | ||
context.fillText(marks[i].toString(), 18, get_y(marks[i])); | ||
} | ||
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var i = 0 // index of current interval | ||
var x_cum = 0 // cumulated x value (sum of the size of the first i-1 intervals) | ||
var x_pos = 0 // current x value | ||
var y_pos = y_def // current y value | ||
var h_pos = h_def // current h value | ||
var x_b = 0 // the 'begin' value of the current interval | ||
var x_e = 0 // the 'end' value of the current interval | ||
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var tops = [[x_pos, y_pos]] // points of the line marking the top of the area | ||
var bots = [[x_pos, y_pos + h_pos]] // points of the line marking the bottom | ||
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// helper method to open an interval | ||
var open_group = function () { | ||
context.lineWidth = 2; | ||
context.strokeStyle = "rgb(" + color[0] + "," + color[1] + "," + color[2] + ")"; | ||
context.beginPath(); | ||
x_b = x_int[i][0]; | ||
x_e = x_int[i][1]; | ||
context.moveTo(get_x(x_pos), get_y(y_pos)); | ||
} | ||
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// helper method to close an interval | ||
var close_group = function () { | ||
x_cum += x_e - x_b; | ||
x_pos = x_cum; | ||
context.lineTo(get_x(x_pos), get_y(y_pos)); | ||
tops.push([x_pos, y_pos]); | ||
bots.push([x_pos, y_pos + h_pos]) | ||
context.stroke(); | ||
} | ||
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// helper method to draw a separator | ||
var draw_separator = function () { | ||
context.lineWidth = 2; | ||
context.strokeStyle = "#dddddd"; | ||
context.beginPath(); | ||
context.moveTo(get_x(x_pos), get_y(y_min)); | ||
context.lineTo(get_x(x_pos), get_y(y_max)); | ||
context.stroke(); | ||
} | ||
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open_group(); | ||
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for (var idx in data) { | ||
var x = data[idx][0]; | ||
var y = data[idx][1]; | ||
var h = data[idx][2]; | ||
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while (i < x_int.length && x_e <= x) { | ||
close_group(); | ||
i += 1; | ||
if (i < x_int.length) { | ||
draw_separator(); | ||
open_group(); | ||
} else { | ||
x_b = 0; | ||
x_e = 0; | ||
} | ||
} | ||
if (x_b <= x && x < x_e) { | ||
x_pos = x_cum + x - x_b; | ||
context.lineTo(get_x(x_pos), get_y(y_pos)); | ||
tops.push([x_pos, y_pos]); | ||
bots.push([x_pos, y_pos + h_pos]); | ||
y_pos = y; | ||
h_pos = h; | ||
context.lineTo(get_x(x_pos), get_y(y_pos)); | ||
tops.push([x_pos, y_pos]); | ||
bots.push([x_pos, y_pos + h_pos]); | ||
} else { | ||
y_pos = y; | ||
h_pos = h; | ||
context.moveTo(get_x(x_pos), get_y(y_pos)); | ||
tops.push([x_pos, y_pos]); | ||
bots.push([x_pos, y_pos + h_pos]); | ||
} | ||
} | ||
if (i < x_int.length) { | ||
close_group(); | ||
i += 1; | ||
} | ||
while (i < x_int.length) { | ||
draw_separator(); | ||
open_group(); | ||
close_group(); | ||
i += 1; | ||
} | ||
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context.fillStyle = "rgba(" + color[0] + "," + color[1] + "," + color[2] + ",0.3)"; | ||
context.beginPath(); | ||
context.moveTo(get_x(tops[0][0]), get_y(tops[0][1])); | ||
for (var i = 0; i < tops.length; i += 1) { | ||
context.lineTo(get_x(tops[i][0]), get_y(tops[i][1])); | ||
} | ||
for (var i = bots.length - 1; i >= 0; i -= 1) { | ||
context.lineTo(get_x(bots[i][0]), get_y(bots[i][1])); | ||
} | ||
context.closePath(); | ||
context.fill(); | ||
}; | ||
}; |
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/* Programming contest management system | ||
* Copyright © 2012 Luca Wehrstedt <[email protected]> | ||
* | ||
* This program is free software: you can redistribute it and/or modify | ||
* it under the terms of the GNU Affero General Public License as | ||
* published by the Free Software Foundation, either version 3 of the | ||
* License, or (at your option) any later version. | ||
* | ||
* This program is distributed in the hope that it will be useful, | ||
* but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
* GNU Affero General Public License for more details. | ||
* | ||
* You should have received a copy of the GNU Affero General Public License | ||
* along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
*/ | ||
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var Config = new function () { | ||
var self = this; | ||
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self.get_contest_list_url = function () { | ||
return "contests/"; | ||
}; | ||
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self.get_contest_read_url = function (c_key) { | ||
return "contests/" + c_key; | ||
}; | ||
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self.get_task_list_url = function () { | ||
return "tasks/"; | ||
}; | ||
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self.get_task_read_url = function (t_key) { | ||
return "tasks/" + t_key; | ||
}; | ||
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self.get_team_list_url = function () { | ||
return "teams/"; | ||
}; | ||
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self.get_team_read_url = function (t_key) { | ||
return "teams/" + t_key; | ||
}; | ||
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self.get_user_list_url = function () { | ||
return "users/"; | ||
}; | ||
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self.get_user_read_url = function (u_key) { | ||
return "users/" + u_key; | ||
}; | ||
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self.get_flag_url = function (t_key) { | ||
return "flags/" + t_key; | ||
}; | ||
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self.get_face_url = function (u_key) { | ||
return "faces/" + u_key; | ||
}; | ||
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self.get_submissions_url = function (u_key) { | ||
return "sublist/" + u_key; | ||
}; | ||
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self.get_score_url = function () { | ||
return "scores"; | ||
}; | ||
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self.get_event_url = function (last_event_id) { | ||
return "events?last_event_id=" + last_event_id; | ||
}; | ||
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self.get_history_url = function () { | ||
return "history"; | ||
} | ||
}; |
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