[sysprof/wip/gtk4-port: 94/125] tab: don't inherit from GtkBox

[Christian Hergert <chergert src gnome org>]

commit 67d5df62ed3fbc9942ff8b91ec484f56c8407882
Author: Christian Hergert <chergert redhat com>
Date:   Fri Oct 1 13:27:18 2021 -0700

    tab: don't inherit from GtkBox
    
    We need center box anyway, which does not expose the class.

 src/libsysprof-ui/sysprof-tab.c  |  8 +++--
 src/libsysprof-ui/sysprof-tab.h  |  2 +-
 src/libsysprof-ui/sysprof-tab.ui | 73 +++++++++++++---------------------------
 3 files changed, 31 insertions(+), 52 deletions(-)
---
diff --git a/src/libsysprof-ui/sysprof-tab.c b/src/libsysprof-ui/sysprof-tab.c
index fa76ef8f..8554cc71 100644
--- a/src/libsysprof-ui/sysprof-tab.c
+++ b/src/libsysprof-ui/sysprof-tab.c
@@ -28,8 +28,9 @@
 
 struct _SysprofTab
 {
-  GtkBox          parent_instance;
+  GtkWidget       parent_instance;
 
+  GtkWidget      *center_box;
   GtkButton      *close_button;
   GtkLabel       *title;
   GtkImage       *recording;
@@ -37,7 +38,7 @@ struct _SysprofTab
   SysprofDisplay *display;
 };
 
-G_DEFINE_TYPE (SysprofTab, sysprof_tab, GTK_TYPE_BOX)
+G_DEFINE_TYPE (SysprofTab, sysprof_tab, GTK_TYPE_WIDGET)
 
 enum {
   PROP_0,
@@ -71,6 +72,7 @@ sysprof_tab_dispose (GObject *object)
 {
   SysprofTab *self = (SysprofTab *)object;
 
+  g_clear_pointer (&self->center_box, gtk_widget_unparent);
   g_clear_weak_pointer (&self->display);
 
   G_OBJECT_CLASS (sysprof_tab_parent_class)->dispose (object);
@@ -127,6 +129,8 @@ sysprof_tab_class_init (SysprofTabClass *klass)
   object_class->set_property = sysprof_tab_set_property;
 
   gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/sysprof/ui/sysprof-tab.ui");
+  gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
+  gtk_widget_class_bind_template_child (widget_class, SysprofTab, center_box);
   gtk_widget_class_bind_template_child (widget_class, SysprofTab, close_button);
   gtk_widget_class_bind_template_child (widget_class, SysprofTab, recording);
   gtk_widget_class_bind_template_child (widget_class, SysprofTab, title);
diff --git a/src/libsysprof-ui/sysprof-tab.h b/src/libsysprof-ui/sysprof-tab.h
index 1762244e..5aff386b 100644
--- a/src/libsysprof-ui/sysprof-tab.h
+++ b/src/libsysprof-ui/sysprof-tab.h
@@ -28,7 +28,7 @@ G_BEGIN_DECLS
 
 #define SYSPROF_TYPE_TAB (sysprof_tab_get_type())
 
-G_DECLARE_FINAL_TYPE (SysprofTab, sysprof_tab, SYSPROF, TAB, GtkBox)
+G_DECLARE_FINAL_TYPE (SysprofTab, sysprof_tab, SYSPROF, TAB, GtkWidget)
 
 GtkWidget *sysprof_tab_new (SysprofDisplay *display);
 
diff --git a/src/libsysprof-ui/sysprof-tab.ui b/src/libsysprof-ui/sysprof-tab.ui
index 883cd25c..c07d5cf8 100644
--- a/src/libsysprof-ui/sysprof-tab.ui
+++ b/src/libsysprof-ui/sysprof-tab.ui
@@ -1,60 +1,35 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.22.0 -->
 <interface>
-  <requires lib="gtk+" version="3.0"/>
-  <template class="SysprofTab" parent="GtkBox">
-    <property name="can_focus">False</property>
-    <property name="hexpand">True</property>
+  <template class="SysprofTab" parent="GtkWidget">
+    <property name="hexpand">true</property>
     <property name="spacing">6</property>
     <child>
-      <object class="GtkImage" id="recording">
-        <property name="visible">false</property>
-        <property name="icon-name">media-record-symbolic</property>
-        <property name="pixel-size">16</property>
-        <property name="hexpand">true</property>
-        <property name="halign">end</property>
-      </object>
-      <packing>
-        <property name="expand">True</property>
-        <property name="fill">True</property>
-        <property name="position">0</property>
-        <property name="pack-type">start</property>
-      </packing>
-    </child>
-    <child type="center">
-      <object class="GtkLabel" id="title">
-        <property name="visible">True</property>
-        <property name="can_focus">False</property>
-      </object>
-      <packing>
-        <property name="expand">False</property>
-        <property name="fill">True</property>
-        <property name="position">0</property>
-      </packing>
-    </child>
-    <child>
-      <object class="GtkButton" id="close_button">
-        <property name="visible">True</property>
-        <property name="can_focus">False</property>
-        <property name="receives_default">False</property>
-        <child>
-          <object class="GtkImage">
-            <property name="visible">True</property>
-            <property name="can_focus">False</property>
+      <object class="GtkCenterBox" id="center_box">
+        <child type="start">
+          <object class="GtkImage" id="recording">
+            <property name="visible">false</property>
+            <property name="icon-name">media-record-symbolic</property>
+            <property name="pixel-size">16</property>
+            <property name="hexpand">true</property>
+            <property name="halign">end</property>
+          </object>
+        </child>
+        <child type="center">
+          <object class="GtkLabel" id="title">
+          </object>
+        </child>
+        <child type="end">
+          <object class="GtkButton" id="close_button">
+            <property name="receives_default">False</property>
             <property name="icon_name">window-close-symbolic</property>
+            <style>
+              <class name="flat"/>
+              <class name="small-button"/>
+              <class name="image-button"/>
+            </style>
           </object>
         </child>
-        <style>
-          <class name="flat"/>
-          <class name="small-button"/>
-        </style>
       </object>
-      <packing>
-        <property name="pack-type">end</property>
-        <property name="expand">False</property>
-        <property name="fill">True</property>
-        <property name="position">1</property>
-      </packing>
     </child>
   </template>
 </interface>