app: rework the UI dimension

Add GtkPaned between the logs and the graph
Load/save app dimensions.

src/app.rs

@@ -21,8 +21,8 @@ use gtk::gdk::Rectangle;
 use gtk::prelude::*;
 use gtk::{
     gdk::BUTTON_SECONDARY, AboutDialog, Application, ApplicationWindow, Builder, Button,
-    CellRendererText, FileChooserAction, FileChooserDialog, ListStore, PopoverMenu, ResponseType,
+    CellRendererText, FileChooserAction, FileChooserDialog, ListStore, Paned, PopoverMenu,
-    Statusbar, TreeView, TreeViewColumn, Viewport,
+    ResponseType, Statusbar, TreeView, TreeViewColumn, Viewport,
 };
 use gtk::{gio, glib, graphene};
 use once_cell::unsync::OnceCell;
@@ -81,7 +81,19 @@ impl GPSApp {
         let window: ApplicationWindow = builder.object("mainwindow").expect("Couldn't get window");
         window.set_application(Some(application));
         window.set_title(Some("GstPipelineStudio"));
-        window.set_size_request(800, 600);
+        let settings = Settings::load_settings();
+        window.set_size_request(settings.app_width, settings.app_height);
+        let paned: Paned = builder
+            .object("graph_logs-paned")
+            .expect("Couldn't get window");
+        paned.set_position(settings.app_graph_logs_paned_pos);
+        let paned: Paned = builder
+            .object("graph_favorites-paned")
+            .expect("Couldn't get window");
+        paned.set_position(settings.app_graph_favorites_paned_pos);
+        if settings.app_maximized {
+            window.maximize();
+        }
         let pipeline = Pipeline::new().expect("Unable to initialize the pipeline");
         let app = GPSApp(Rc::new(GPSAppInner {
             window,
@@ -120,6 +132,25 @@ impl GPSApp {
                 .borrow_mut()
                 .take()
                 .expect("Shutdown called multiple times");
+            let window: ApplicationWindow = app
+                .builder
+                .object("mainwindow")
+                .expect("Couldn't get window");
+            let mut settings = Settings::load_settings();
+            settings.app_maximized = window.is_maximized();
+            settings.app_width = window.width();
+            settings.app_height = window.height();
+            let paned: Paned = app
+                .builder
+                .object("graph_logs-paned")
+                .expect("Couldn't get window");
+            settings.app_graph_logs_paned_pos = paned.position();
+            let paned: Paned = app
+                .builder
+                .object("graph_favorites-paned")
+                .expect("Couldn't get window");
+            settings.app_graph_favorites_paned_pos = paned.position();
+            Settings::save_settings(&settings);
             app.drop();
         });
     }
@@ -134,10 +165,13 @@ impl GPSApp {
             ok_button = "Save";
             action = FileChooserAction::Save;
         }
-
+        let window: ApplicationWindow = app
+            .builder
+            .object("mainwindow")
+            .expect("Couldn't get window");
         let file_chooser: FileChooserDialog = FileChooserDialog::new(
             Some(message),
-            Some(&app.window),
+            Some(&window),
             action,
             &[
                 (ok_button, ResponseType::Ok),
@@ -191,6 +225,7 @@ impl GPSApp {
         dialog.set_resizable(false);
         dialog.show();
     }
+
     fn reset_logger_list(&self, logger_list: &TreeView) {
         let model = ListStore::new(&[String::static_type()]);
         logger_list.set_model(Some(&model));
@@ -298,7 +333,11 @@ impl GPSApp {
                         app.reset_favorite_list(&favorite_list);
                         pop_menu.unparent();
                     }));
-                    if let Some(application) = app.window.application() {
+                    let window: ApplicationWindow = app
+                    .builder
+                    .object("mainwindow")
+                    .expect("Couldn't get window");
+                    if let Some(application) = window.application() {
                         application.add_action(&action);
                     }
 

src/gps.ui

@@ -231,7 +231,11 @@
           </object>
         </child>
         <child>
-          <object class="GtkPaned">
+          <object class="GtkPaned" id="graph_logs-paned">
+          <property name="orientation">vertical</property>
+          <property name="position">400</property>
+          <child>
+            <object class="GtkPaned" id="graph_favorites-paned">
               <property name="position">600</property>
               <property name="position-set">True</property>
               <property name="hexpand">True</property>
@@ -268,12 +272,13 @@
           </child>
           <child>
             <object class="GtkScrolledWindow">
-            <property name="valign">end</property>
               <property name="child">
                 <object class="GtkTreeView" id="logger_list"/>
               </property>
             </object>
           </child>
+          </object>
+        </child>
     <child>
       <object class="GtkStatusbar" id="status_bar">
       </object>

src/settings.rs

@@ -9,6 +9,11 @@ use crate::logger;
 #[derive(Debug, Serialize, Deserialize, Default)]
 pub struct Settings {
     pub favorites: Vec<String>,
+    pub app_maximized: bool,
+    pub app_width: i32,
+    pub app_height: i32,
+    pub app_graph_logs_paned_pos: i32,
+    pub app_graph_favorites_paned_pos: i32,
 }
 
 impl Settings {
@@ -81,7 +86,13 @@ impl Settings {
                 }
             }
         } else {
-            Settings::default()
+            Settings {
+                app_width: 800,
+                app_height: 600,
+                app_graph_logs_paned_pos: 400,
+                app_graph_favorites_paned_pos: 600,
+                ..Default::default()
+            }
         }
     }
 }