Automatically choose the best layout for the screen

cobang/app.py

@@ -220,6 +220,7 @@ def do_activate(self):
             self.discover_webcam()
         self.window.present()
         logger.debug("Window {} is shown", self.window)
+        ui.resize_to_match_screen(self.window)
         # If no webcam is selected, select the first V4l2 one
         if not self.webcam_combobox.get_active_iter():
             v4l2_idx = next((n for n, r in enumerate(self.webcam_store) if r[2] == 'v4l2src'), 0)

cobang/ui.py

@@ -20,6 +20,9 @@
 
 logger = Logger(__name__)
 
+BEST_HORIZONTAL_WIDTH = 914
+BEST_VERTICAL_HEIGHT = 654
+
 
 def build_app_menu_model() -> Gio.Menu:
     menu = Gio.Menu()
@@ -86,3 +89,25 @@ def wifi_connect_done(client: NM.Client, res: Gio.AsyncResult, button: Gtk.Butto
     if created:
         button.set_label(_('Saved'))
         button.set_sensitive(False)
+
+
+def get_monitor_screen(window: Gtk.Window):
+    display = window.get_display()
+    logger.debug('Display: {}, {}', display, display.get_name())
+    # FIXME: It returns wrong monitor
+    monitor = display.get_monitor_at_window(window.get_window())
+    geo = monitor.get_geometry()
+    w, h = geo.width, geo.height
+    logger.debug('Monitor size: {}', (w, h))
+    return (w, h)
+
+
+def resize_to_match_screen(window: Gtk.Window):
+    '''Try to detect desktop or mobile screen, and resize to promote the horizontal or vertical layout.'''
+    sw, sh = get_monitor_screen(window)
+    w, h = window.get_size()
+    logger.debug('Current window size: {}', (w, h))
+    if sw > BEST_HORIZONTAL_WIDTH:
+        window.resize(BEST_HORIZONTAL_WIDTH, h)
+    elif sh > BEST_VERTICAL_HEIGHT:
+        window.resize(w, BEST_VERTICAL_HEIGHT)

data/vn.hoabinh.quan.CoBang.appdata.xml

@@ -40,6 +40,11 @@
   </kudos>
 
   <releases>
+    <release version="0.9.3" date="2021-09-12" urgency="medium">
+      <description>
+        <p>Automatically choose the best layout for the screen.</p>
+      </description>
+    </release>
     <release version="0.9.2" date="2021-09-11" urgency="medium">
       <description>
         <p>Reduce scrolling on mobile screen.</p>

meson.build

@@ -1,5 +1,5 @@
 project('cobang',
-        version: '0.9.2',
+        version: '0.9.3',
         meson_version: '>= 0.53',
         default_options: [
           'warning_level=2',

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "cobang"
-version = "0.9.2"
+version = "0.9.3"
 description = "QR code scanner for Linux desktop"
 authors = ["Nguyễn Hồng Quân <[email protected]>"]
 license = "GPL-3.0-or-later"