Added temp cut/paste buffer commands; added zoom in/out commands; fixed tab closures leaking memory

src/core/widgets/code/commands/cut_to_temp_buffer.py

@@ -0,0 +1,36 @@
+# Python imports
+
+# Lib imports
+import gi
+
+gi.require_version('GtkSource', '4')
+
+from gi.repository import GtkSource
+
+# Application imports
+
+
+
+def execute(
+    view: GtkSource.View  = None
+):
+    logger.debug("Cut to Temp Buffer Command")
+
+    view.clear_temp_cut_buffer_delayed()
+
+    buffer     = view.get_buffer()
+    itr        = buffer.get_iter_at_mark( buffer.get_insert() )
+    start_itr  = itr.copy()
+    end_itr    = itr.copy()
+    start_line = itr.get_line() + 1
+    start_char = itr.get_line_offset()
+
+    start_itr.backward_visible_line()
+    start_itr.forward_line()
+    end_itr.forward_line()
+
+    line_str   = buffer.get_slice(start_itr, end_itr, True)
+    view._cut_buffer += f"{line_str}"
+    buffer.delete(start_itr, end_itr)
+
+    view.set_temp_cut_buffer_delayed()

src/core/widgets/code/commands/paste_temp_buffer.py

@@ -0,0 +1,28 @@
+# Python imports
+
+# Lib imports
+import gi
+
+gi.require_version('GtkSource', '4')
+
+from gi.repository import GLib
+from gi.repository import GtkSource
+
+# Application imports
+
+
+
+def execute(
+    view: GtkSource.View  = None
+):
+    logger.debug("Paste Temp Buffer Command")
+
+    view.clear_temp_cut_buffer_delayed()
+
+    buffer     = view.get_buffer()
+    itr        = buffer.get_iter_at_mark( buffer.get_insert() )
+    insert_itr = itr.copy()
+
+    buffer.insert(insert_itr, view._cut_buffer, -1)
+
+    view.set_temp_cut_buffer_delayed()

src/core/widgets/code/commands/zoom_in.py

@@ -0,0 +1,23 @@
+# Python imports
+
+# Lib imports
+import gi
+
+gi.require_version('GtkSource', '4')
+
+from gi.repository import GtkSource
+
+# Application imports
+
+
+
+def execute(
+    view: GtkSource.View  = None
+):
+    logger.debug("Zoom In Command")
+
+    ctx = view.get_style_context()
+    if view.zoom_level < 99:
+        ctx.remove_class(f"px{view.zoom_level}")
+        view.zoom_level += 1
+        ctx.add_class(f"px{view.zoom_level}")

src/core/widgets/code/commands/zoom_out.py

@@ -0,0 +1,23 @@
+# Python imports
+
+# Lib imports
+import gi
+
+gi.require_version('GtkSource', '4')
+
+from gi.repository import GtkSource
+
+# Application imports
+
+
+
+def execute(
+    view: GtkSource.View  = None
+):
+    logger.debug("Zoom Out Command")
+
+    ctx = view.get_style_context()
+    if view.zoom_level > 1:
+        ctx.remove_class(f"px{view.zoom_level}")
+        view.zoom_level -= 1
+        ctx.add_class(f"px{view.zoom_level}")

src/core/widgets/code/tab_widget.py

@@ -13,8 +13,7 @@ class TabWidget(Gtk.Box):
     def __init__(self):
         super(TabWidget, self).__init__()
 
-        self._handler_ids: list = []
-        self.file               = None
+        self.file = None
 
         self._setup_styling()
         self._setup_signals()
@@ -51,14 +50,12 @@ class TabWidget(Gtk.Box):
         self.add(self.close_btn)
 
     def __del__(self):
-        for handle_id in self._handler_ids:
-            self.disconnect(handle_id)
         del self.file
+        self._label_eve_box.disconnect(self._label_eve_box_id)
+        self.close_btn.disconnect(self.close_btn_id)
 
     def set_select_signal(self, callback):
-        _id = self._label_eve_box.connect('button-release-event', callback, self.file)
-        self._handler_ids.append(_id)
+        self._label_eve_box_id = self._label_eve_box.connect('button-release-event', callback, self.file)
 
     def set_close_signal(self, callback):
-        _id = self.close_btn.connect('button-release-event', callback, self.file)
-        self._handler_ids.append(_id)
+        self.close_btn_id = self.close_btn.connect('button-release-event', callback, self.file)

src/core/widgets/code/view.py

@@ -26,7 +26,9 @@ class SourceView(GtkSource.View, ObservableMixin, SourceViewEventsMixin, SourceV
     def __init__(self):
         super(SourceView, self).__init__()
 
-        self.observers     = []
+        self.observers            = []
+        self._cut_temp_timeout_id = None
+        self._cut_buffer          = ""
 
         self.sibling_right = None
         self.sibling_left  = None
@@ -38,8 +40,11 @@ class SourceView(GtkSource.View, ObservableMixin, SourceViewEventsMixin, SourceV
 
 
     def _setup_styles(self):
-        ctx = self.get_style_context()
+        self.zoom_level = settings_manager.settings.theming.default_zoom
+        ctx             = self.get_style_context()
+
         ctx.add_class("source-view")
+        ctx.add_class(f"px{self.zoom_level}")
 
         self.set_vexpand(True)
         self.set_bottom_margin(800)
@@ -111,3 +116,15 @@ class SourceView(GtkSource.View, ObservableMixin, SourceViewEventsMixin, SourceV
     def set_files_manager(self, files_manager: SourceFilesManager):
         self.files_manager = files_manager
         self.files_manager.add_observer(self)
+
+    def clear_temp_cut_buffer_delayed(self):
+        if self._cut_temp_timeout_id:
+            GLib.source_remove(self._cut_temp_timeout_id)
+
+    def set_temp_cut_buffer_delayed(self):
+        def clear_temp_buffer():
+            self._cut_buffer          = ""
+            self._cut_temp_timeout_id = None
+            return False
+
+        self._cut_temp_timeout_id = GLib.timeout_add(15000, clear_temp_buffer)

user_config/usr/share/app_name/code-key-bindings.json

@@ -9,6 +9,18 @@
         "line_down": {
             "held": "<Control>Down"
         },
+        "zoom_in": {
+            "held": "<Control>equal"
+        },
+        "zoom_out": {
+            "held": "<Control>minus"
+        },
+        "cut_to_temp_buffer": {
+            "held": "<Control>k"
+        },
+        "paste_temp_buffer": {
+            "held": "<Control>u"
+        },
         "new_file": {
             "released": "<Control>t"
         },