[gnome-boxes] wizard, wizard-source: Don't align & margin WizardSource

[Debarshi Ray <debarshir src gnome org>]

commit 63c5694d0534b3139297ab53fd5a54523784f22c
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Sep 14 18:42:54 2017 +0200

    wizard, wizard-source: Don't align & margin WizardSource
    
    In a following patch, we will add a separate page with a WebKitWebView
    to the WizardSource. When used, this page should expand to fill the
    whole dialog instead of staying centre aligned like the existing pages.
    Therefore, each page in WizardSource needs to be margined and aligned
    separately, which is already the case for the horizontal alignment.
    
    This fixes the vertical alignment and the horizontal margins.
    
    Note that this has a subtle effect on the layout of the WizardSource
    pages. So far, WizardSource was vertically centred and url_menubox
    was set to fill, and WizardSource was vertically taller than the URL
    page. This meant that url_menubox would expand vertically to fill the
    entire WizardSource, but due to its semantics as a vertically oriented
    GtkBox, it's contents would stick to it's top edge. This gave the
    GtkLabel and GtkEntry widgets in the page their slightly off-centred
    positioning on the vertical axis.
    
    Moving the valign=CENTER from the WizardSource to url_menubox would
    spoil the layout because it will force url_menubox to be strictly
    centred and non-expanding. Therefore, top and bottom margins have been
    used instead of alignment. The existing top margin was increased to
    match that of the main page.
    
    To prevent the top edge of the widgets from jumping when changing
    pages, the main page now has a similar layout as the URL page. It is
    no longer centred and has a similarly off-centred positioning on the
    vertical axis. However, this is much more subtle and barely
    discernible.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=786679

 data/ui/wizard-source.ui |    6 +++++-
 data/ui/wizard.ui        |    3 ---
 2 files changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/data/ui/wizard-source.ui b/data/ui/wizard-source.ui
index 19e1df3..b16292a 100644
--- a/data/ui/wizard-source.ui
+++ b/data/ui/wizard-source.ui
@@ -14,6 +14,8 @@
         <property name="visible">True</property>
         <property name="orientation">vertical</property>
         <property name="spacing">0</property>
+        <property name="margin-start">10</property>
+        <property name="margin-end">10</property>
         <property name="margin-top">30</property>
         <property name="margin-bottom">30</property>
         <style>
@@ -233,7 +235,9 @@
         <property name="visible">True</property>
         <property name="orientation">vertical</property>
         <property name="spacing">0</property>
-        <property name="margin-top">15</property>
+        <property name="margin-start">10</property>
+        <property name="margin-end">10</property>
+        <property name="margin-top">30</property>
         <property name="margin-bottom">15</property>
         <style>
           <class name="boxes-menu"/>
diff --git a/data/ui/wizard.ui b/data/ui/wizard.ui
index e044371..2384d6d 100644
--- a/data/ui/wizard.ui
+++ b/data/ui/wizard.ui
@@ -19,9 +19,6 @@
         <child>
           <object class="BoxesWizardSource" id="wizard_source">
             <property name="visible">True</property>
-            <property name="margin-start">10</property>
-            <property name="margin-end">10</property>
-            <property name="valign">center</property>
           </object>
 
           <packing>