Rename set_characters method in buffer interface

src/buffer.rs

@@ -105,16 +105,16 @@ impl Buffer {
     }
 
     pub fn set_string(&mut self, x: u16, y: u16, string: &str, fg: Color, bg: Color) {
-        self.set_characters(x, y, string, usize::MAX, fg, bg);
+        self.set_stringn(x, y, string, usize::MAX, fg, bg);
     }
 
-    pub fn set_characters(&mut self,
-                          x: u16,
-                          y: u16,
-                          string: &str,
-                          limit: usize,
-                          fg: Color,
-                          bg: Color) {
+    pub fn set_stringn(&mut self,
+                       x: u16,
+                       y: u16,
+                       string: &str,
+                       limit: usize,
+                       fg: Color,
+                       bg: Color) {
         let mut index = self.index_of(x, y);
         let graphemes = UnicodeSegmentation::graphemes(string, true).collect::<Vec<&str>>();
         let max_index = min((self.area.width - x) as usize, limit);

src/widgets/barchart.rs

@@ -144,12 +144,12 @@ impl<'a> Widget for BarChart<'a> {
                                    self.bar_color);
                 }
             }
-            buf.set_characters(chart_area.left() + i as u16 * (self.bar_width + self.bar_gap),
-                               chart_area.bottom() - 1,
-                               label,
-                               self.bar_width as usize,
-                               self.label_color,
-                               Color::Reset);
+            buf.set_stringn(chart_area.left() + i as u16 * (self.bar_width + self.bar_gap),
+                            chart_area.bottom() - 1,
+                            label,
+                            self.bar_width as usize,
+                            self.label_color,
+                            Color::Reset);
         }
     }
 }