[gnome-characters] characterList: Fix width computation

[Daiki Ueno <dueno src gnome org>]

commit 593bdb068ebc6d83f93d2b58eacf66b1e8d3a968
Author: Daiki Ueno <dueno src gnome org>
Date:   Mon Mar 2 22:12:04 2015 +0900

    characterList: Fix width computation

 src/characterList.js |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)
---
diff --git a/src/characterList.js b/src/characterList.js
index 599c9c9..e2fdb74 100644
--- a/src/characterList.js
+++ b/src/characterList.js
@@ -32,6 +32,7 @@ const Util = imports.util;
 const BASELINE_OFFSET = 0.85;
 const CELLS_PER_ROW = 5;
 const NUM_ROWS = 5;
+const NUM_COLUMNS = 5;
 const CELL_SIZE = 50;
 
 function getCellSize(fontDescription) {
@@ -121,7 +122,8 @@ const CharacterListWidget = new Lang.Class({
     },
 
     vfunc_get_preferred_height_for_width: function(width) {
-        let height = Math.max(this._rows.length, NUM_ROWS) * getCellSize(this._fontDescription);
+        let height = Math.max(this._rows.length, NUM_ROWS) *
+            getCellSize(this._fontDescription);
         return [height, height];
     },
 
@@ -130,8 +132,10 @@ const CharacterListWidget = new Lang.Class({
     },
 
     vfunc_get_preferred_width_for_height: function(height) {
-        let width = this._cellsPerRow * getCellSize(this._fontDescription);
-        return [width, width];
+        let cellSize = getCellSize(this._fontDescription);
+        let minWidth = NUM_COLUMNS * cellSize;
+        let natWidth = Math.max(this._cellsPerRow, NUM_COLUMNS) * cellSize;
+        return [minWidth, natWidth];
     },
 
     vfunc_size_allocate: function(allocation) {