Added Open/Close/Save options and toast notifications

gemgraph/main.py

@@ -47,6 +47,7 @@ class GemGraphApplication(Adw.Application):
         We raise the application's main window, creating it if
         necessary.
         """
+        print("app.do_activate called")
         win = self.props.active_window
         if not win:
             win = GemGraphWindow(application=self)
@@ -55,6 +56,24 @@ class GemGraphApplication(Adw.Application):
         win.stack_switch_mode("run")
         win.present()
 
+    def do_open(self):
+        """Called when the application is activated with a file to open.
+
+        We raise the application's main window, creating it if
+        necessary.
+        """
+        print("app.do_open called")
+        win = self.props.active_window
+        if not win:
+            win = GemGraphWindow(application=self)
+
+        # Open file
+        pass
+
+        # Display run mode by default
+        win.stack_switch_mode("run")
+        win.present()
+
     def on_about_action(self, widget, _):
         """Callback for the app.about action."""
         about = AboutDialog(self.props.active_window)
@@ -63,6 +82,8 @@ class GemGraphApplication(Adw.Application):
     def on_preferences_action(self, widget, _):
         """Callback for the app.preferences action."""
         print('app.preferences action activated')
+        win = self.props.active_window
+        win.send_toast("Not implemented at this time (sorry!)")
 
     def on_editmode_action(self, widget, _):
         """Callback for the app.editmode action."""

gemgraph/window.py

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from gi.repository import Gtk
+from gi.repository import Gtk, Adw
 
 
 @Gtk.Template(filename='ui/gemgraph.ui')
@@ -31,6 +31,7 @@ class GemGraphWindow(Gtk.ApplicationWindow):
     side_stack = Gtk.Template.Child()
     main_paned = Gtk.Template.Child()
     main_button_mode = Gtk.Template.Child()
+    toast_overlay = Gtk.Template.Child()
 
     __mode_icon = {
             "mode_edit":"document-edit-symbolic" ,
@@ -50,7 +51,7 @@ class GemGraphWindow(Gtk.ApplicationWindow):
         if position != 0:
             self.main_paned.set_position(0)
         else:
-            self.main_paned.set_position(250)
+            self.main_paned.set_position(300)
 
     def stack_switch_mode(self, mode):
         """
@@ -60,6 +61,9 @@ class GemGraphWindow(Gtk.ApplicationWindow):
         self.side_stack.set_visible_child_full("side_"+mode, Gtk.StackTransitionType.CROSSFADE)
         self.main_button_mode.props.icon_name = self.__mode_icon["mode_"+mode]
 
+    def send_toast(self, message):
+        self.toast_overlay.add_toast(Adw.Toast(title=message))
+
 class AboutDialog(Gtk.AboutDialog):
 
     def __init__(self, parent):

ui/gemgraph.ui

@@ -43,8 +43,10 @@
       </object>
     </child>
     <child>
+      <object class="AdwToastOverlay" id="toast_overlay">
+        <property name="child">
           <object class="GtkPaned" id="main_paned">
-        <property name="position">250</property>
+            <property name="position">300</property>
             <child>
               <object class="GtkStack" id="side_stack">
                 <child>
@@ -126,10 +128,26 @@
               </object>
             </child>
           </object>
+        </property>
+    </object>
     </child>
   </template>
 
   <menu id="main_menu">
+    <section>
+      <item>
+        <attribute name="label" translatable="yes">_Open...</attribute>
+        <attribute name="action">app.open_file</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes">_Close</attribute>
+        <attribute name="action">app.close_file</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes">_Save</attribute>
+        <attribute name="action">app.save_file</attribute>
+      </item>
+    </section>
     <section>
       <item>
         <attribute name="label" translatable="yes">_Preferences</attribute>