[gnome-taquin] Allow to run on a flat screen.

[Arnaud B. <arnaudb src gnome org>]

commit dde52f596c5fe511a5a910b72469a408c535a3ee
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Fri Jan 18 16:20:08 2019 +0100

    Allow to run on a flat screen.
    
    That is allowed by the use of BaseWindow.

 data/taquin-screens.ui |  3 +++
 data/taquin.css        | 23 ++++++++++++++++-------
 src/game-window.vala   |  2 +-
 3 files changed, 20 insertions(+), 8 deletions(-)
---
diff --git a/data/taquin-screens.ui b/data/taquin-screens.ui
index 459e14a..7bc139c 100644
--- a/data/taquin-screens.ui
+++ b/data/taquin-screens.ui
@@ -59,6 +59,9 @@
     <property name="orientation">vertical</property>
     <property name="visible">True</property>
     <property name="spacing">6</property>
+    <style>
+      <class name="new-game-screen"/>
+    </style>
     <child>
       <object class="GtkLabel" id="games_label">
         <property name="visible">False</property>
diff --git a/data/taquin.css b/data/taquin.css
index 06930ab..aa9b4d8 100644
--- a/data/taquin.css
+++ b/data/taquin.css
@@ -17,10 +17,13 @@
 
 @import url("base-window.css");
 
-                   button.start-game-button { margin-top:2rem; margin-bottom:1rem; transition:margin-top 0 
ease; }
+                   .new-game-screen         { padding:   0.5rem; }  /* for top    */
+      .flat-window button.start-game-button { margin-top:0.5rem; } /* for bottom */
 
-.extra-thin-window button.start-game-button,
-.extra-thin-window label.section-header     { margin-top:1rem; }
+                   button.start-game-button { margin-top:2.0rem; margin-bottom:0.5rem; transition:margin-top 
0 ease; }
+
+.extra-thin-window label.section-header,
+.extra-thin-window button.start-game-button { margin-top:1.0rem; }
 
 button.radio-like-toggle,
 button.menubutton-like-combo {
@@ -48,22 +51,28 @@ button.menubutton-like-combo {
   padding:0.5rem 1rem 1rem 1rem;
 }
 
-window:not(.extra-thin-window) button.radio-like-toggle {
+      window:not(.extra-thin-window) button.radio-like-toggle {
   transition:background-size     0s ease 0.01s,
              background-position 0s ease 0.01s,
              min-height          0s ease 0.01s,
              padding             0s ease 0.01s;
 }
 
-.extra-thin-window button.radio-like-toggle {
+.flat-window:not(.extra-thin-window) button.radio-like-toggle {
+  background-size:8rem;
+  min-height:9rem;
+}
+
+                 .extra-thin-window  button.radio-like-toggle {
   background-size:5rem;
   background-position:0.4rem center;
   min-height:3rem;
   padding:1.8rem 1rem 1rem 5rem;
 }
 
-                   button.radio-like-toggle label { padding-bottom:10rem; }
-.extra-thin-window button.radio-like-toggle label { padding-bottom:1rem;  }
+                                     button.radio-like-toggle label { padding-bottom:10rem; }
+                 .extra-thin-window  button.radio-like-toggle label { padding-bottom: 1rem; }
+.flat-window:not(.extra-thin-window) button.radio-like-toggle label { padding-bottom: 6rem; }
 
 /*\
 * * options buttons
diff --git a/src/game-window.vala b/src/game-window.vala
index 2732eb8..b8ba5cd 100644
--- a/src/game-window.vala
+++ b/src/game-window.vala
@@ -45,7 +45,7 @@ private class GameWindow : BaseWindow, AdaptativeWidget
 
     construct
     {
-        height_request = 500;    // FIXME remove limit
+        height_request = 400;    // FIXME remove limit
     }
 
     public GameWindow (string? css_resource, string name, int width, int height, bool maximized, bool 
start_now, GameWindowFlags flags, Box _new_game_screen, Widget view_content, NightLightMonitor 
night_light_monitor)