Pycha module added, icons added, charts.py file added, simplegraph now can create a bar chart

1 files changed, 135 insertions, 0 deletions

diff --git a/charts.py b/charts.py
new file mode 100644
index 0000000..13439c3
--- /dev/null
+++ b/charts.py
@@ -0,0 +1,135 @@
+#!/usr/bin/env python
+# -*- coding: UTF-8 -*-
+
+# charts.py by:
+#    Agustin Zubiaga <aguzubiaga97@gmail.com>
+#    Gonzalo Odiard <godiard@gmail.com>
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+import pycha.bar
+import pycha.pie
+
+import cairo
+import os
+import gobject
+
+CHART_IMAGE = os.path.join("/tmp", "chart.png")
+
+
+class BarChart(gobject.GObject):
+
+    __gsignals__ = {
+                  'ready': (gobject.SIGNAL_RUN_FIRST, None, [str])}
+
+    def __init__(self, type="vertical", width=800, height=600):
+        gobject.GObject.__init__(self)
+
+        self.dataSet = None
+        self.options = None
+        self.surface = None
+
+        self.type = type
+        self.width = width
+        self.height = height
+
+    def data_set(self, data):
+        self.dataSet = (
+            ('Puntos', [(i, l[1]) for i, l in enumerate(data)]),
+            )
+
+        self.options = {
+            'legend': {'hide': True},
+            'axis': {
+                'x': {
+                    'ticks': [dict(v=i, label=l[0]) for i,
+                                                        l in enumerate(data)],
+                    'label': 'X',
+                },
+                'y': {
+                    'tickCount': 5,
+                    'label': 'Y',
+                }
+            },
+            'background': {
+                'chartColor': '#f3f9fb',
+                'lineColor': '#d1e5ec'
+            },
+            'colorScheme': {
+                'name': 'gradient',
+                'args': {
+                    'initialColor': 'blue',
+                },
+            },
+        }
+
+    def set_color_scheme(self, name="gradinet", args={'initialColor': 'blue'}):
+        self.options["colorScheme"]["name"] = name
+        self.options["args"] = args
+
+    def set_chart_color(self, color='#f3f9fb'):
+        self.options["background"]["chartColor"] = color
+
+    def set_line_color(self, color='#d1e5ec'):
+        self.options["background"]["lineColor"] = color
+
+    def set_x_label(self, text="X"):
+        self.options["axis"]["x"]["label"] = str(text)
+
+    def set_y_label(self, text="Y"):
+        self.options["axis"]["y"]["label"] = str(text)
+
+    def set_type(self, type="vertical"):
+        self.type = type
+
+    def set_title(self, title="Bar Chart"):
+        self.options["title"] = title
+
+    def render(self):
+        self.surface = cairo.ImageSurface(cairo.FORMAT_ARGB32,
+                                            self.width,
+                                            self.height)
+
+        if self.type == "vertical":
+            chart = pycha.bar.VerticalBarChart(self.surface, self.options)
+
+        elif self.type == "horizontal":
+            chart = pycha.bar.HorizontalBarChart(self.surface, self.options)
+
+        chart.addDataset(self.dataSet)
+        chart.render()
+
+        self.surface.write_to_png(CHART_IMAGE)
+        self.emit("ready", CHART_IMAGE)
+
+
+class PieChart(gobject.GObject):
+
+    __gsignals__ = {
+                  'ready': (gobject.SIGNAL_RUN_FIRST, None, [str])}
+
+    def __init__(self, type="vertical", width=550, height=310):
+        gobject.GObject.__init__(self)
+
+        self.dataSet = None
+        self.options = None
+        self.surface = None
+
+        self.type = type
+        self.width = width
+        self.height = height
+
+    def set_title(self, title="Pie Chart"):
+        self.options["title"] = title