From 8d6a183fbda1dd95d23ae9699ff872986881049a Mon Sep 17 00:00:00 2001
From: Florian Mounier <florian.mounier@kozea.fr>
Date: Thu, 2 Feb 2012 18:07:08 +0100
Subject: [PATCH] And the title

---
 pygal/css/graph.css     | 6 ++++++
 pygal/line.py           | 9 ++++++---
 pygal/svg.py            | 5 +++++
 pygal/test/test_line.py | 1 +
 4 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/pygal/css/graph.css b/pygal/css/graph.css
index 74d6c09..bfb1cef 100644
--- a/pygal/css/graph.css
+++ b/pygal/css/graph.css
@@ -10,6 +10,12 @@
   fill: #777;
 }
 
+.title {
+  fill: #eee;
+  text-anchor: middle;
+  alignment-baseline: baseline;
+}
+
 .legend text {
   font-size: 12px;
   font-family: sans;  
diff --git a/pygal/line.py b/pygal/line.py
index 6c8de18..03deeae 100644
--- a/pygal/line.py
+++ b/pygal/line.py
@@ -12,7 +12,7 @@ class Line(BaseGraph):
         self.svg = Svg(width, height)
         self.label_font_size = 12
         self.series = []
-        self.x_labels = None
+        self.x_labels = self.title = None
 
     def add(self, title, values):
         self.series.append(
@@ -43,7 +43,7 @@ class Line(BaseGraph):
         self.validate()
 
         vals = [val for serie in self.series for val in serie.values]
-        margin = Margin(*(4 * [20]))
+        margin = Margin(*(4 * [10]))
         ymin, ymax = min(vals), max(vals)
         x_labels = self.x_labels
         y_labels = self.y_labels(ymin, ymax)
@@ -51,7 +51,9 @@ class Line(BaseGraph):
         margin.left += 10 + max(
             map(len, [l.label for l in y_labels])) * 0.6 * self.label_font_size
         margin.bottom += 10 + self.label_font_size
-        margin.right += 40 + max(map(len, series_labels))
+        margin.right += 20 + max(
+            map(len, series_labels)) * 0.6 * self.label_font_size
+        margin.top += 10 + self.label_font_size
 
         # Actual drawing
         self.svg.set_view(margin, ymin, ymax)
@@ -59,6 +61,7 @@ class Line(BaseGraph):
         self.svg.x_axis(x_labels)
         self.svg.y_axis(y_labels)
         self.svg.legend(margin, series_labels)
+        self.svg.title(margin, self.title)
         for serie_index, serie in enumerate(self.series):
             serie_node = self.svg.serie(serie_index)
             self.svg.line(serie_node, [
diff --git a/pygal/svg.py b/pygal/svg.py
index e49ace4..639ec90 100644
--- a/pygal/svg.py
+++ b/pygal/svg.py
@@ -112,6 +112,11 @@ class Svg(object):
                   ).text = title
             self.node(legend, 'text', x=15, y=i * 15).text = title
 
+    def title(self, margin, title):
+        self.node(self.graph, 'text', class_='title',
+                  x=margin.left + self.view.width / 2,
+                  y=10).text = title
+
     def serie(self, serie):
         return self.node(
             self.plot, class_='series serie-%d color-%d' % (serie, serie))
diff --git a/pygal/test/test_line.py b/pygal/test/test_line.py
index e9bd624..9fe49fe 100644
--- a/pygal/test/test_line.py
+++ b/pygal/test/test_line.py
@@ -8,4 +8,5 @@ def test_simple_line():
     line.add('test2', [sin(x / 10.) for x in range(-30, 30, 5)])
     line.add('test3', [cos(x / 10.) - sin(x / 10.) for x in range(-30, 30, 5)])
     line.set_labels(map(str, range(-30, 30, 5)))
+    line.title = "cos sin and cos - sin"
     line._in_browser()