[gthumb] header bar: align menus to the right for menu buttons on the right side

[Paolo Bacchilega <paobac src gnome org>]

commit 74c2a3891e2849bee0ab65e4d308e51740782adb
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sun Oct 20 12:59:21 2019 +0200

    header bar: align menus to the right for menu buttons on the right side

 extensions/export_tools/callbacks.c | 1 +
 extensions/list_tools/callbacks.c   | 2 ++
 gthumb/gth-browser.c                | 4 ++--
 3 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/extensions/export_tools/callbacks.c b/extensions/export_tools/callbacks.c
index 68760d5a..082f64a6 100644
--- a/extensions/export_tools/callbacks.c
+++ b/extensions/export_tools/callbacks.c
@@ -45,6 +45,7 @@ export_tools__gth_browser_construct_cb (GthBrowser *browser)
        button = _gtk_menu_button_new_for_header_bar ("export-symbolic");
        gtk_widget_set_tooltip_text (button, _("Export"));
        gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (button), menu);
+       gtk_widget_set_halign (GTK_WIDGET (gtk_menu_button_get_popup (GTK_MENU_BUTTON (button))), 
GTK_ALIGN_CENTER);
        gtk_widget_show (button);
        gtk_box_pack_start (GTK_BOX (gth_browser_get_headerbar_section (browser, 
GTH_BROWSER_HEADER_SECTION_BROWSER_TOOLS)), button, FALSE, FALSE, 0);
 }
diff --git a/extensions/list_tools/callbacks.c b/extensions/list_tools/callbacks.c
index 5da5ad05..fb059db3 100644
--- a/extensions/list_tools/callbacks.c
+++ b/extensions/list_tools/callbacks.c
@@ -173,6 +173,7 @@ list_tools__gth_browser_construct_cb (GthBrowser *browser)
        g_signal_connect (button, "toggled", G_CALLBACK (tools_menu_button_toggled_cb), data);
        gtk_widget_set_tooltip_text (button, _("Tools"));
        gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (button), menu);
+       gtk_widget_set_halign (GTK_WIDGET (gtk_menu_button_get_popup (GTK_MENU_BUTTON (button))), 
GTK_ALIGN_CENTER);
        gtk_widget_show (button);
        gtk_box_pack_start (GTK_BOX (gth_browser_get_headerbar_section (browser, 
GTH_BROWSER_HEADER_SECTION_BROWSER_TOOLS)), button, FALSE, FALSE, 0);
 
@@ -182,6 +183,7 @@ list_tools__gth_browser_construct_cb (GthBrowser *browser)
        g_signal_connect (button, "toggled", G_CALLBACK (tools_menu_button_toggled_cb), data);
        gtk_widget_set_tooltip_text (button, _("Tools"));
        gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (button), menu);
+       gtk_widget_set_halign (GTK_WIDGET (gtk_menu_button_get_popup (GTK_MENU_BUTTON (button))), 
GTK_ALIGN_CENTER);
        gtk_widget_show (button);
        gtk_box_pack_end (GTK_BOX (gth_browser_get_headerbar_section (browser, 
GTH_BROWSER_HEADER_SECTION_VIEWER_EDIT)), button, FALSE, FALSE, 0);
 
diff --git a/gthumb/gth-browser.c b/gthumb/gth-browser.c
index 74151675..00ba013b 100644
--- a/gthumb/gth-browser.c
+++ b/gthumb/gth-browser.c
@@ -4509,9 +4509,9 @@ gth_browser_init (GthBrowser *browser)
 
                builder = _gtk_builder_new_from_resource ("gears-menu.ui");
                menu = G_MENU_MODEL (gtk_builder_get_object (builder, "menu"));
-               browser->priv->menu_button = _gtk_menu_button_new_for_header_bar (NULL);
-               gtk_menu_button_set_direction (GTK_MENU_BUTTON (browser->priv->menu_button), GTK_ARROW_NONE);
+               browser->priv->menu_button = _gtk_menu_button_new_for_header_bar ("open-menu-symbolic");
                gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (browser->priv->menu_button), menu);
+               gtk_widget_set_halign (GTK_WIDGET (gtk_menu_button_get_popup (GTK_MENU_BUTTON 
(browser->priv->menu_button))), GTK_ALIGN_END);
                gtk_widget_show_all (browser->priv->menu_button);
                gtk_header_bar_pack_end (GTK_HEADER_BAR (header_bar), browser->priv->menu_button);