Fix margin and bottom legend spacing + pretty_print off by default to avoid extra space in tooltip in firefox

demo/simple_test.py

@@ -178,18 +178,19 @@ pie = Pie(Config(style=NeonStyle))
 # pie.add('test4', [20, lnk(18), 9])
 # pie.add('test5', [17, 5, 10])
 # pie.add('test6', [None, None, 10])
-for i in range(30):
-    pie.add(str(i) + '!' * i, [i, 30 - i])
+for i in range(10):
+    pie.add('P' + str(i) + '!' * i, [i, 30 - i])
 
-# pie.included_js = []
-# pie.external_js = [
-#     'http://localhost:7575/svg.jquery.js',
-#     'http://localhost:7575/pygal.js',
+# pie.js = [
+    # 'http://localhost:9898/svg.jquery.js',
+    # 'http://localhost:9898/pygal-tooltips.js',
 # ]
 # pie.add('test', {'value': 11, 'xlink': 'javascript:alert("lol 11")'})
 # pie.add('test2', 1)
 # pie.add('test3', 5)
 # pie.title = "Pie test"
+pie.legend_at_bottom = True
+pie.legend_box_size = 100
 pie.render_to_file('out-pie.svg')
 
 config = Config()

pygal/__init__.py

@@ -21,7 +21,7 @@ Pygal -  A python svg graph plotting library
 
 """
 
-__version__ = '0.10.0'
+__version__ = '0.10.1'
 
 from pygal.config import Config
 from pygal.graph.bar import Bar

pygal/config.py

@@ -110,6 +110,8 @@ class Config(object):
     truncate_legend = None
     #: Label string length truncation threshold (None = auto)
     truncate_label = None
+    #: Pretty print the svg
+    pretty_print = False
 
     def __init__(self, **kwargs):
         """Can be instanciated with config kwargs"""

pygal/graph/base.py

@@ -90,7 +90,9 @@ class BaseGraph(object):
                   cut(self.series, 'title')),
                 self.legend_font_size)
             if self.legend_at_bottom:
-                self.margin.bottom += 10 + h * int(sqrt(len(self.series)))
+                h_max = max(h, self.legend_box_size)
+                self.margin.bottom += 10 + h_max * round(
+                        sqrt(len(self.series)) - 1) * 1.5 + h_max
             else:
                 self.margin.right += 10 + w + self.legend_box_size
 
@@ -188,7 +190,8 @@ class BaseGraph(object):
     def render(self, is_unicode=False):
         """Render the graph, and return the svg string"""
         self._render()
-        return self.svg.render(is_unicode=is_unicode)
+        return self.svg.render(
+            is_unicode=is_unicode, pretty_print=self.pretty_print)
 
     def render_tree(self):
         """Render the graph, and return lxml tree"""

pygal/graph/graph.py

@@ -187,8 +187,9 @@ class Graph(BaseGraph):
             y = (self.margin.top + self.view.height +
                  self._x_labels_height + 10)
             cols = ceil(sqrt(len(self.series)))
+
             if not truncation:
-                available_space = self.width / cols - (
+                available_space = self.view.width / cols - (
                     self.legend_box_size + 5)
                 truncation = int(reverse_text_len(
                     available_space, self.legend_font_size))
@@ -203,7 +204,8 @@ class Graph(BaseGraph):
             self.nodes['graph'], class_='legends',
             transform='translate(%d, %d)' % (x, y))
 
-        x_step = self.width / cols
+        h = max(self.legend_box_size, self.legend_font_size)
+        x_step = self.view.width / cols
         for i, title in enumerate(self._legends):
             col = i % cols
             row = i // cols
@@ -214,7 +216,10 @@ class Graph(BaseGraph):
             self.svg.node(
                 legend, 'rect',
                 x=col * x_step,
-                y=1.5 * row * self.legend_box_size,
+                y=1.5 * row * h + (
+                    self.legend_font_size - self.legend_box_size
+                    if self.legend_font_size > self.legend_box_size else 0
+                ) / 2,
                 width=self.legend_box_size,
                 height=self.legend_box_size,
                 class_="color-%d reactive" % (i % 16)
@@ -224,8 +229,8 @@ class Graph(BaseGraph):
             self.svg.node(
                 legend, 'text',
                 x=col * x_step + self.legend_box_size + 5,
-                y=1.5 * row * self.legend_box_size
-                + .5 * self.legend_box_size
+                y=1.5 * row * h
+                + .5 * h
                 + .3 * self.legend_font_size
             ).text = truncated
             if truncated != title:

pygal/svg.py

@@ -28,7 +28,7 @@ import json
 from lxml import etree
 from math import cos, sin, pi
 from urlparse import urlparse
-from pygal.util import template, coord_format
+from pygal.util import template, coord_format, minify_css
 from pygal import __version__
 
 
@@ -68,12 +68,14 @@ class Svg(object):
                     css = os.path.join(
                         os.path.dirname(__file__), 'css', css)
                 with io.open(css, encoding='utf-8') as f:
-                    templ = template(
+                    css_text = template(
                         f.read(),
                         style=self.graph.style,
                         font_sizes=self.graph.font_sizes())
+                    if not self.graph.pretty_print:
+                        css_text = minify_css(css_text)
                     self.node(
-                        self.defs, 'style', type='text/css').text = templ
+                        self.defs, 'style', type='text/css').text = css_text
 
     def add_scripts(self):
         """Add the js to the svg"""
@@ -184,15 +186,16 @@ class Svg(object):
             class_='no_data')
             no_data.text = self.graph.no_data_text
 
-    def render(self, is_unicode=False):
+    def render(self, is_unicode=False, pretty_print=False):
         """Last thing to do before rendering"""
         svg = etree.tostring(
-            self.root, pretty_print=True,
+            self.root, pretty_print=pretty_print,
             xml_declaration=False,
             encoding='utf-8')
         if not self.graph.disable_xml_declaration:
             svg = b'\n'.join(
-                [etree.tostring(pi, encoding='utf-8', pretty_print=True)
+                [etree.tostring(
+                    pi, encoding='utf-8', pretty_print=pretty_print)
                  for pi in self.processing_instructions]
             ) + b'\n' + svg
         if self.graph.disable_xml_declaration or is_unicode:

pygal/test/test_util.py

@@ -18,7 +18,7 @@
 # along with pygal. If not, see <http://www.gnu.org/licenses/>.
 from pygal.util import (
     round_to_int, round_to_float, _swap_curly, template, humanize,
-    is_major, truncate)
+    is_major, truncate, minify_css)
 from pytest import raises
 
 
@@ -121,3 +121,24 @@ def test_truncate():
     assert truncate('1234567890', 10) == '1234567890'
     assert truncate('1234567890', 0) == '1234567890'
     assert truncate('1234567890', -1) == '1234567890'
+
+
+def test_minify_css():
+    css = '''
+/* 
+ * Font-sizes from config, override with care
+ */
+
+.title  {
+  font-family: sans;
+
+  font-size:  12 ;
+}
+
+.legends .legend text {
+  font-family: monospace; 
+  font-size: 14 ;}
+'''
+    assert minify_css(css) == (
+        '.title{font-family:sans;font-size:12}'
+        '.legends .legend text{font-family:monospace;font-size:14}')

pygal/util.py

@@ -25,6 +25,7 @@ from __future__ import division
 from decimal import Decimal
 from math import floor, pi, log, log10, ceil
 from itertools import cycle
+import re
 ORDERS = u"yzafpnµm kMGTPEZY"
 
 
@@ -243,3 +244,32 @@ class cached_property(object):
             return self
         value = obj.__dict__[self.__name__] = self.getter(obj)
         return value
+
+css_comments = re.compile(r'/\*.*?\*/', re.MULTILINE | re.DOTALL)
+
+
+def minify_css(css):
+    # Inspired by slimmer by Peter Bengtsson
+    remove_next_comment = 1
+    for css_comment in css_comments.findall(css):
+        if css_comment[-3:] == '\*/':
+            remove_next_comment = 0
+            continue
+        if remove_next_comment:
+            css = css.replace(css_comment, '')
+        else:
+            remove_next_comment = 1
+
+    # >= 2 whitespace becomes one whitespace
+    css = re.sub(r'\s\s+', ' ', css)
+    # no whitespace before end of line
+    css = re.sub(r'\s+\n', '', css)
+    # Remove space before and after certain chars
+    for char in ('{', '}', ':', ';', ','):
+        css = re.sub(char + r'\s', char, css)
+        css = re.sub(r'\s' + char, char, css)
+    css = re.sub(r'}\s(#|\w)', r'}\1', css)
+    # no need for the ; before end of attributes
+    css = re.sub(r';}', r'}', css)
+    css = re.sub(r'}//-->', r'}\n//-->', css)
+    return css.strip()