mirror of https://github.com/Kozea/pygal.git
Florian Mounier
12 years ago
9 changed files with 212 additions and 107 deletions
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# -*- coding: utf-8 -*- |
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# This file is part of pygal |
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# |
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# A python svg graph plotting library |
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# Copyright © 2012 Kozea |
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# |
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# This library is free software: you can redistribute it and/or modify it under |
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# the terms of the GNU Lesser General Public License as published by the Free |
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# Software Foundation, either version 3 of the License, or (at your option) any |
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# later version. |
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# |
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# This library is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
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# details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License |
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# along with pygal. If not, see <http://www.gnu.org/licenses/>. |
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""" |
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Ghost container |
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It is used to delegate rendering to real objects but keeping config in place |
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""" |
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import io |
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from importlib import import_module |
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from pygal.config import Config |
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from pygal.serie import Serie, Value |
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from pygal.graph import CHARTS_NAMES |
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REAL_CHARTS = {} |
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for NAME in CHARTS_NAMES: |
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mod = import_module('pygal.graph.%s' % NAME.lower()) |
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REAL_CHARTS[NAME] = getattr(mod, NAME) |
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class Ghost(object): |
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def __init__(self, config=None, **kwargs): |
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"""Init config""" |
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self.config = config or Config() |
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self.config(**kwargs) |
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self.series = [] |
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def add(self, title, values): |
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"""Add a serie to this graph""" |
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self.series.append( |
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Serie(title, values, len(self.series), Value)) |
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def make_instance(self): |
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self.config(**self.__dict__) |
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name = self.__class__.__name__ |
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cls = REAL_CHARTS[name] |
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self._last__inst = cls(self.config, self.series) |
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return self._last__inst |
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# Rendering |
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def render(self, is_unicode=False): |
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return self.make_instance().render(is_unicode=is_unicode) |
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def render_tree(self): |
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return self.make_instance().render_tree() |
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def render_pyquery(self): |
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"""Render the graph, and return a pyquery wrapped tree""" |
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from pyquery import PyQuery as pq |
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return pq(self.render_tree()) |
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def render_in_browser(self): |
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"""Render the graph, open it in your browser with black magic""" |
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from lxml.html import open_in_browser |
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open_in_browser(self.render_tree(), encoding='utf-8') |
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def render_response(self): |
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"""Render the graph, and return a Flask response""" |
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from flask import Response |
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return Response(self.render(), mimetype='image/svg+xml') |
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def render_to_file(self, filename): |
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"""Render the graph, and write it to filename""" |
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with io.open(filename, 'w', encoding='utf-8') as f: |
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f.write(self.render(is_unicode=True)) |
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def render_to_png(self, filename): |
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"""Render the graph, convert it to png and write it to filename""" |
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import cairosvg |
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from io import BytesIO |
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fakefile = BytesIO() |
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fakefile.write(self.render()) |
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fakefile.seek(0) |
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cairosvg.surface.PNGSurface.convert( |
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file_obj=fakefile, write_to=filename) |
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# -*- coding: utf-8 -*- |
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# This file is part of pygal |
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# |
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# A python svg graph plotting library |
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# Copyright © 2012 Kozea |
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# |
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# This library is free software: you can redistribute it and/or modify it under |
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# the terms of the GNU Lesser General Public License as published by the Free |
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# Software Foundation, either version 3 of the License, or (at your option) any |
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# later version. |
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# |
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# This library is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
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# details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License |
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# along with pygal. If not, see <http://www.gnu.org/licenses/>. |
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""" |
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Horizontal bar graph |
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""" |
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from pygal.graph.horizontal import HorizontalGraph |
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from pygal.graph.bar import Bar |
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class HorizontalBar(HorizontalGraph, Bar): |
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"""Horizontal Bar graph""" |
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# -*- coding: utf-8 -*- |
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# This file is part of pygal |
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# |
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# A python svg graph plotting library |
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# Copyright © 2012 Kozea |
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# |
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# This library is free software: you can redistribute it and/or modify it under |
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# the terms of the GNU Lesser General Public License as published by the Free |
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# Software Foundation, either version 3 of the License, or (at your option) any |
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# later version. |
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# |
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# This library is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
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# details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License |
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# along with pygal. If not, see <http://www.gnu.org/licenses/>. |
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""" |
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Horizontal stacked graph |
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""" |
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from pygal.graph.horizontal import HorizontalGraph |
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from pygal.graph.stackedbar import StackedBar |
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class HorizontalStackedBar(HorizontalGraph, StackedBar): |
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"""Horizontal Stacked Bar graph""" |
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