Final updates for 2.19.

CHANGES.txt

@@ -1,10 +1,11 @@
-Version 2.19
+Version 2.19 (17/07/2015)
 ------------
 - Added histogram.
 - Added shading overlay for 3D bar sides and top.
 - Added best_fit_opacity and best_fit_above options.
 - Added semantic class for best fit lines.
 - Added tooltip and data label callback options.
+- Added data_label_min_space option.
 
 Version 2.18 (03/04/2015)
 ------------

SVGGraphBarGraph.php

@@ -40,7 +40,7 @@ protected function Draw()
     $body = $this->Grid() . $this->Guidelines(SVGG_GUIDELINE_BELOW);
     $bnum = 0;
     $bar_width = $this->BarWidth();
-    $bspace = max(0, ($this->x_axes[$this->main_x_axis]->Unit() - $bar_width) / 2);
+    $bspace = $this->BarSpace($bar_width);
     $this->ColourSetup($this->values->ItemsCount());
     $bars = '';
 
@@ -95,6 +95,14 @@ protected function BarWidth()
     return $this->bar_space >= $unit_w ? '1' : $unit_w - $this->bar_space;
   }
 
+  /**
+   * Returns the space before a bar
+   */
+  protected function BarSpace($bar_width)
+  {
+    return max(0, ($this->x_axes[$this->main_x_axis]->Unit() - $bar_width) / 2);
+  }
+
   /**
    * Fills in the y-position and height of a bar
    * @param number $value bar value

SVGGraphHistogram.php

@@ -158,8 +158,17 @@ protected function BarWidth()
   {
     if(is_numeric($this->bar_width) && $this->bar_width >= 1)
       return $this->bar_width;
-    $unit_w = $this->x_axes[$this->main_x_axis]->Unit();
-    return $unit_w * $this->increment;
+    $unit_w = $this->increment * $this->x_axes[$this->main_x_axis]->Unit();
+    return $this->bar_space >= $unit_w ? '1' : $unit_w - $this->bar_space;
+  }
+
+  /**
+   * Returns the space before a bar
+   */
+  protected function BarSpace($bar_width)
+  {
+    $uwidth = $this->increment * $this->x_axes[$this->main_x_axis]->Unit();
+    return max(0, ($uwidth - $bar_width) / 2);
   }
 }