GTK+: Add support for header bar.

gtk/src/gtk_config.cpp

@@ -157,6 +157,7 @@ int Snes9xConfig::load_defaults ()
     netplay_last_host [0] = '\0';
     netplay_last_port = 6096;
     modal_dialogs = 1;
+    use_headerbar = 0;
     S9xCheatsEnable ();
 
     rewind_granularity = 5;
@@ -335,6 +336,7 @@ int Snes9xConfig::save_config_file ()
     cf.SetInt (z"PreferencesHeight", preferences_height);
     outbool (cf, z"UIVisible", ui_visible);
     outbool (cf, z"StatusBarVisible", statusbar_visible);
+    outbool (cf, z"UseHeaderBar", use_headerbar);
     if (default_esc_behavior != ESC_TOGGLE_MENUBAR)
         outbool (cf, z"Fullscreen", 0);
     else
@@ -539,6 +541,7 @@ int Snes9xConfig::load_config_file ()
     inbool (z"UIVisible", ui_visible);
     inbool (z"StatusBarVisible", statusbar_visible);
     inbool (z"Fullscreen", fullscreen);
+    inbool (z"UseHeaderBar", use_headerbar);
 
 #undef z
 #define z "Netplay::"

gtk/src/gtk_config.h

@@ -127,6 +127,7 @@ class Snes9xConfig
     int           num_threads;
     unsigned char screensaver_needs_reset;
     int           modal_dialogs;
+    unsigned char use_headerbar;
 
     int           pointer_is_visible;
     gint64        pointer_timestamp;

gtk/src/gtk_s9xwindow.cpp

@@ -625,6 +625,9 @@ Snes9xWindow::Snes9xWindow (Snes9xConfig *config) :
     gtk_widget_set_app_paintable (GTK_WIDGET (drawing_area), TRUE);
 #endif
 
+    if (config->use_headerbar)
+        become_monster ();
+
     gtk_widget_realize (window);
     gtk_widget_realize (GTK_WIDGET (drawing_area));
 #if GTK_MAJOR_VERSION < 3
@@ -680,6 +683,69 @@ Snes9xWindow::Snes9xWindow (Snes9xConfig *config) :
     resize (config->window_width, config->window_height);
 }
 
+void
+Snes9xWindow::become_monster ()
+{
+#if GTK_MAJOR_VERSION >= 3
+
+    if (!config->use_headerbar)
+        return;
+
+    config->default_esc_behavior = ESC_EXIT_FULLSCREEN;
+
+    GtkCssProvider *headerbar_provider;
+    GtkCssProvider *menubar_provider;
+    GtkStyleContext *context;
+    GtkWidget *headerbar;
+    GtkWidget *menubar;
+
+    headerbar_provider = gtk_css_provider_new ();
+    menubar_provider = gtk_css_provider_new ();
+    gtk_css_provider_load_from_data (headerbar_provider,
+                                     "headerbar {"
+                                     " min-height: 0px;"
+                                     " padding-top: 0px;"
+                                     " padding-bottom: 0px;"
+                                     " margin: 0px;"
+                                     "}",
+                                     -1,
+                                     NULL);
+    gtk_css_provider_load_from_data (menubar_provider,
+                                     "menubar, menubar.* {"
+                                     " margin-top: 2px;"
+                                     " margin-bottom: 2px;"
+                                     " box-shadow: none;"
+                                     " border: 0px;"
+                                     " background-image: none;"
+                                     " background-color: transparent;"
+                                     "}",
+                                     -1,
+                                     NULL);
+
+    headerbar = gtk_header_bar_new ();
+    context = gtk_widget_get_style_context (headerbar);
+    gtk_style_context_add_provider (context,
+                                    GTK_STYLE_PROVIDER (headerbar_provider),
+                                    GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+    gtk_header_bar_set_has_subtitle(GTK_HEADER_BAR (headerbar), FALSE);
+    gtk_header_bar_set_show_close_button (GTK_HEADER_BAR (headerbar), TRUE);
+    gtk_window_set_titlebar (GTK_WINDOW (window), headerbar);
+
+    menubar = get_widget ("menubar");
+    g_object_ref ((gpointer) menubar);
+    context = gtk_widget_get_style_context (menubar);
+    gtk_style_context_add_provider (context,
+                                    GTK_STYLE_PROVIDER (menubar_provider),
+                                    GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+    gtk_container_remove (GTK_CONTAINER (get_widget ("vbox1")), menubar);
+
+    gtk_header_bar_pack_start (GTK_HEADER_BAR (headerbar), menubar);
+    gtk_widget_show_all (headerbar);
+#else
+    config->use_headerbar = 0;
+#endif
+}
+
 extern const gtk_splash_t gtk_splash;
 
 void
@@ -1768,9 +1834,12 @@ Snes9xWindow::toggle_statusbar ()
     int           width = 0;
     int           height = 0;
 
-    item = get_widget ("menubar");
-    gtk_widget_get_allocation (item, &allocation);
-    height += gtk_widget_get_visible (item) ? allocation.height : 0;
+    if (!config->use_headerbar)
+    {
+        item = get_widget ("menubar");
+        gtk_widget_get_allocation (item, &allocation);
+        height += gtk_widget_get_visible (item) ? allocation.height : 0;
+    }
 
     item = get_widget ("drawingarea");
     gtk_widget_get_allocation (item, &allocation);
@@ -1794,9 +1863,12 @@ Snes9xWindow::resize_viewport (int width, int height)
     GtkAllocation allocation;
     int           y_padding = 0;
 
-    item = get_widget ("menubar");
-    gtk_widget_get_allocation (item, &allocation);
-    y_padding += gtk_widget_get_visible (item) ? allocation.height : 0;
+    if (!config->use_headerbar)
+    {
+        item = get_widget ("menubar");
+        gtk_widget_get_allocation (item, &allocation);
+        y_padding += gtk_widget_get_visible (item) ? allocation.height : 0;
+    }
 
     item = get_widget ("statusbar");
     gtk_widget_get_allocation (item, &allocation);

gtk/src/gtk_s9xwindow.h

@@ -60,6 +60,7 @@ class Snes9xWindow : public GtkBuilderWindow
         void expose ();
         double get_refresh_rate ();
         int get_auto_input_rate ();
+        void become_monster ();
 
         cairo_t *get_cairo ();
         void release_cairo ();