[gnome-shell/overview-relayout: 14/15] iconGrid: Add alignment parameter

[Florian Müllner <fmuellner src gnome org>]

commit cac2d6c264e126cf9639e71ebe974173feb20579
Author: Florian Müllner <florian muellner gmail com>
Date:   Thu Oct 14 13:10:47 2010 +0200

    iconGrid: Add alignment parameter
    
    Currently the grid's content is centered, which is not appropriate
    for all use cases. Add an optional parameter to control the alignment.

 js/ui/iconGrid.js |   17 +++++++++++++++--
 1 files changed, 15 insertions(+), 2 deletions(-)
---
diff --git a/js/ui/iconGrid.js b/js/ui/iconGrid.js
index 05abe1b..35704f4 100644
--- a/js/ui/iconGrid.js
+++ b/js/ui/iconGrid.js
@@ -135,9 +135,12 @@ function IconGrid(params) {
 
 IconGrid.prototype = {
     _init: function(params) {
-        params = Params.parse(params, { rowLimit: null, columnLimit: null });
+        params = Params.parse(params, { rowLimit: null,
+                                        columnLimit: null,
+                                        xAlign: St.Align.MIDDLE });
         this._rowLimit = params.rowLimit;
         this._colLimit = params.columnLimit;
+        this._xAlign = params.xAlign;
 
         this.actor = new St.BoxLayout({ style_class: 'icon-grid',
                                         vertical: true });
@@ -189,7 +192,17 @@ IconGrid.prototype = {
 
         let [nColumns, usedWidth] = this._computeLayout(availWidth);
 
-        let overallPaddingX = Math.floor((availWidth - usedWidth) / 2);
+        let overallPaddingX;
+        switch(this._xAlign) {
+            case St.Align.START:
+                overallPaddingX = 0;
+                break;
+            case St.Align.MIDDLE:
+                overallPaddingX = Math.floor((availWidth - usedWidth) / 2);
+                break;
+            case St.Align.END:
+                overallPaddingX = availWidth - usedWidth;
+        }
 
         let x = box.x1 + overallPaddingX;
         let y = box.y1;