64 lines
2.0 KiB
Python
64 lines
2.0 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2011 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Module to draw column chart."""
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class ColumnChart(object):
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"""class to draw column chart."""
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def __init__(self, title, width, height):
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self.title = title
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self.chart_div = ''.join(t for t in title if t.isalnum())
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self.width = width
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self.height = height
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self.columns = []
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self.rows = []
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self.series = []
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def AddSeries(self, column_name, series_type, color):
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for i in range(len(self.columns)):
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if column_name == self.columns[i][1]:
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self.series.append((i - 1, series_type, color))
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break
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def AddColumn(self, name, column_type):
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self.columns.append((column_type, name))
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def AddRow(self, row):
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self.rows.append(row)
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def GetJavascript(self):
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res = 'var data = new google.visualization.DataTable();\n'
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for column in self.columns:
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res += "data.addColumn('%s', '%s');\n" % column
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res += 'data.addRows(%s);\n' % len(self.rows)
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for row in range(len(self.rows)):
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for column in range(len(self.columns)):
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val = self.rows[row][column]
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if isinstance(val, str):
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val = "'%s'" % val
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res += 'data.setValue(%s, %s, %s);\n' % (row, column, val)
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series_javascript = ''
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for series in self.series:
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series_javascript += "%s: {type: '%s', color: '%s'}, " % series
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chart_add_javascript = """
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var chart_%s = new google.visualization.ComboChart(
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document.getElementById('%s'));
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chart_%s.draw(data, {width: %s, height: %s, title: '%s', legend: 'none',
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seriesType: "bars", lineWidth: 0, pointSize: 5, series: {%s},
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vAxis: {minValue: 0}})
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"""
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res += chart_add_javascript % (self.chart_div, self.chart_div,
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self.chart_div, self.width, self.height,
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self.title, series_javascript)
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return res
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def GetDiv(self):
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return "<div id='%s' class='chart'></div>" % self.chart_div
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