From 9708b68540ff71092c62a5e85a66c0981ed8aeee Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20M=C3=BCllner?= <fmuellner@gnome.org>
Date: Mon, 30 Aug 2010 14:59:36 +0200
Subject: [PATCH] [baseIcon] Tie the icon's width to its height

Both current design and new mockups use square icons. Currently this
is implemented by setting a fixed width and height in the CSS, which
does not work for the growing/shrinking items in the new sidebar.
By moving the assumption of square items into the code, the size will
adjust according to icon size, spacing, padding and font size if not
explicitly overwritten in the CSS.

https://bugzilla.gnome.org/show_bug.cgi?id=625887
---
 js/ui/iconGrid.js | 69 ++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 60 insertions(+), 9 deletions(-)

diff --git a/js/ui/iconGrid.js b/js/ui/iconGrid.js
index b2b01930d..05abe1bdb 100644
--- a/js/ui/iconGrid.js
+++ b/js/ui/iconGrid.js
@@ -22,17 +22,23 @@ BaseIcon.prototype = {
                                   x_fill: true,
                                   y_fill: true });
         this.actor._delegate = this;
-
         this.actor.connect('style-changed',
                            Lang.bind(this, this._onStyleChanged));
 
-        let box = new St.BoxLayout({ vertical: true });
+        this._spacing = 0;
+
+        let box = new Shell.GenericContainer();
+        box.connect('allocate', Lang.bind(this, this._allocate));
+        box.connect('get-preferred-width',
+                    Lang.bind(this, this._getPreferredWidth));
+        box.connect('get-preferred-height',
+                    Lang.bind(this, this._getPreferredHeight));
         this.actor.set_child(box);
 
         this.iconSize = ICON_SIZE;
         this._iconBin = new St.Bin();
 
-        box.add(this._iconBin, { expand: true, x_fill: false, y_fill: false });
+        box.add_actor(this._iconBin);
 
         this._name = new St.Label({ text: label });
         box.add_actor(this._name);
@@ -45,6 +51,44 @@ BaseIcon.prototype = {
         this._iconBin.set_child(this.icon);
     },
 
+    _allocate: function(actor, box, flags) {
+        let availWidth = box.x2 - box.x1;
+        let availHeight = box.y2 - box.y1;
+
+        let [labelMinHeight, labelNatHeight] = this._name.get_preferred_height(-1);
+        let [iconMinHeight, iconNatHeight] = this._iconBin.get_preferred_height(-1);
+        let preferredHeight = labelNatHeight + this._spacing + iconNatHeight;
+        let labelHeight = availHeight >= preferredHeight ? labelNatHeight
+                                                         : labelMinHeight;
+        let iconSize = availHeight - this._spacing - labelHeight;
+        let iconPadding = (availWidth - iconSize) / 2;
+
+        let childBox = new Clutter.ActorBox();
+
+        childBox.x1 = iconPadding;
+        childBox.y1 = 0;
+        childBox.x2 = availWidth - iconPadding;
+        childBox.y2 = iconSize;
+        this._iconBin.allocate(childBox, flags);
+
+        childBox.x1 = 0;
+        childBox.x2 = availWidth;
+        childBox.y1 = iconSize + this._spacing;
+        childBox.y2 = childBox.y1 + labelHeight;
+        this._name.allocate(childBox, flags);
+    },
+
+    _getPreferredWidth: function(actor, forHeight, alloc) {
+        this._getPreferredHeight(actor, -1, alloc);
+    },
+
+    _getPreferredHeight: function(actor, forWidth, alloc) {
+        let [iconMinHeight, iconNatHeight] = this._iconBin.get_preferred_height(forWidth);
+        let [labelMinHeight, labelNatHeight] = this._name.get_preferred_height(forWidth);
+        alloc.min_size = iconMinHeight + this._spacing + labelMinHeight;
+        alloc.natural_size = iconNatHeight + this._spacing + labelNatHeight;
+    },
+
     // This can be overridden by a subclass, or by the createIcon
     // parameter to _init()
     createIcon: function(size) {
@@ -69,12 +113,19 @@ BaseIcon.prototype = {
     },
 
     _onStyleChanged: function() {
-        if (!this._setSizeManually) {
-            let node = this.actor.get_theme_node();
-            let [success, len] = node.get_length('icon-size', false);
-            if (success)
-                this._setIconSize(len);
-        }
+        let success, len;
+        let node = this.actor.get_theme_node();
+
+        [success, len] = node.get_length('spacing', false);
+        if (success)
+            this._spacing = spacing;
+
+        if (this._setSizeManually)
+            return;
+
+        [success, len] = node.get_length('icon-size', false);
+        if (success)
+            this._setIconSize(len);
     }
 };