Added Clipboard implementation

gremlin/__init__.py

@@ -41,3 +41,4 @@
 import gremlin.tts
 import gremlin.util
 import gremlin.windows_event_hook
+import gremlin.clipboard

gremlin/clipboard.py

@@ -0,0 +1,37 @@
+# -*- coding: utf-8; -*-
+
+# Copyright (C) 2015 - 2019 Lionel Ott
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# 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 . import common
+
+
+@common.SingletonDecorator
+class Clipboard:
+
+    """Responsible for storing and restoring action related data."""
+
+    def __init__(self):
+        """Creates a new instance, initializing empty clipboard."""
+        self.item_data = None
+
+    def copy(self, item_data):
+        """ Saves item_data to clipboard """
+        self.item_data = item_data
+
+    def paste(self):
+        """ Returns item_data saved in clipboard """
+        return self.item_data
+

gremlin/ui/device_tab.py

@@ -18,7 +18,7 @@
 
 import logging
 
-from PyQt5 import QtWidgets, QtCore
+from PyQt5 import QtWidgets, QtCore, QtGui
 
 import container_plugins.basic
 import gremlin
@@ -35,7 +35,7 @@ class InputItemConfiguration(QtWidgets.QFrame):
     # Signal emitted when the description changes
     description_changed = QtCore.pyqtSignal(str)
 
-    def __init__(self, item_data, parent=None):
+    def __init__(self, item_data, parent=None, clipboard=None):
         """Creates a new object instance.
 
         :param item_data profile data associated with the item
@@ -62,6 +62,21 @@ def __init__(self, item_data, parent=None):
 
         self.main_layout.addWidget(self.action_view)
 
+        self.clipboard = clipboard
+        self.copy_shortcut = QtWidgets.QShortcut(QtGui.QKeySequence('Ctrl+C'), self)
+        self.copy_shortcut.activated.connect(self._copy_actions)
+        self.paste_shortcut = QtWidgets.QShortcut(QtGui.QKeySequence('Ctrl+V'), self)
+        self.paste_shortcut.activated.connect(self._paste_actions)
+
+    def update_item_data(self, item_data):
+        # delete old data containers, add new ones
+        for container_id in reversed(range(0, self.action_model.rows())):
+            container_data = self.action_model.data(container_id)
+            self.action_model.remove_container(container_data)
+        for container in item_data.containers:
+            self.action_model.add_container(container)
+        self.item_data = item_data
+
     def _add_action(self, action_name):
         """Adds a new action to the input item.
 
@@ -185,6 +200,15 @@ def _valid_action_names(self):
                     action_names.append(entry.name)
         return sorted(action_names)
 
+    def _copy_actions(self):
+        """ Copies current actions and makes them available for pasting """
+        self.clipboard.copy(self.item_data)
+
+    def _paste_actions(self):
+        """ Pastes copied actions into currently selected item """
+        data = self.clipboard.paste()
+        if data and data is not self.item_data:
+            self.update_item_data(data)
 
 class ActionContainerModel(common.AbstractModel):
 
@@ -296,7 +320,8 @@ def __init__(
             device,
             device_profile,
             current_mode,
-            parent=None
+            parent=None,
+            clipboard = None
     ):
         """Creates a new object instance.
 
@@ -371,6 +396,7 @@ def __init__(
             self.left_panel_layout.addWidget(label)
 
         self.main_layout.addLayout(self.left_panel_layout)
+        self.clipboard = clipboard
 
     def input_item_selected_cb(self, index):
         """Handles the selection of an input item.
@@ -390,7 +416,7 @@ def input_item_selected_cb(self, index):
         self.main_layout.removeItem(item)
 
         if item_data is not None:
-            widget = InputItemConfiguration(item_data)
+            widget = InputItemConfiguration(item_data, clipboard=self.clipboard)
             change_cb = self._create_change_cb(index)
             widget.action_model.data_changed.connect(change_cb)
             widget.description_changed.connect(change_cb)

joystick_gremlin.py

@@ -100,6 +100,8 @@ def __init__(self, parent=None):
         self._profile = gremlin.profile.Profile()
         self._profile_fname = None
         self._profile_auto_activated = False
+        self.clipboard = gremlin.clipboard.Clipboard()
+
         # Input selection storage
         self._last_input_timestamp = time.time()
         self._last_input_event = None
@@ -606,7 +608,8 @@ def _create_tabs(self, activate_tab=None):
             widget = gremlin.ui.device_tab.JoystickDeviceTabWidget(
                 device,
                 device_profile,
-                self._current_mode
+                self._current_mode,
+                clipboard = self.clipboard
             )
             self.tabs[device.device_guid] = widget
             tab_label = device.name.strip()
@@ -627,7 +630,8 @@ def _create_tabs(self, activate_tab=None):
             widget = gremlin.ui.device_tab.JoystickDeviceTabWidget(
                 device,
                 device_profile,
-                self._current_mode
+                self._current_mode,
+                clipboard = self.clipboard
             )
             self.tabs[device.device_guid] = widget
             tab_label = device.name.strip()
@@ -662,7 +666,8 @@ def _create_tabs(self, activate_tab=None):
             widget = gremlin.ui.device_tab.JoystickDeviceTabWidget(
                 device,
                 device_profile,
-                self._current_mode
+                self._current_mode,
+                clipboard = self.clipboard
             )
             self.tabs[device.device_guid] = widget
             self.ui.devices.addTab(