Fix some issues with rename

source/backend/engine/CarlaEngine.cpp

@@ -822,7 +822,8 @@ const char* CarlaEngine::renamePlugin(const uint id, const char* const newName)
     if (const char* const name = getUniquePluginName(newName))
     {
         plugin->setName(name);
-        return name;
+        delete[] name;
+        return plugin->getName();
     }
 
     setLastError("Unable to get new unique plugin name");

source/carla_host.py

@@ -1940,6 +1940,7 @@ def canvasCallback(action, value1, value2, valueStr):
 
     elif action == patchcanvas.ACTION_PLUGIN_RENAME:
         pluginId = value1
+        clientId = value2
         newName  = valueStr
 
         if host.rename_plugin(pluginId, newName):
@@ -1947,6 +1948,10 @@ def canvasCallback(action, value1, value2, valueStr):
             pwidget = gCarla.gui.getPluginSlotWidget(pluginId)
             if pwidget is not None:
                 pwidget.setName(newName)
+
+            patchcanvas.renameGroup(clientId, newName)
+            gCarla.gui.ui.miniCanvasPreview.update()
+
         else:
             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),
                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

source/carla_skin.py

@@ -621,6 +621,7 @@ class AbstractPluginSlot(QFrame, PluginEditParentMeta):
         self.fEditDialog.setPluginId(idx)
 
     def setName(self, name):
+        self.fPluginInfo['name'] = name
         self.fEditDialog.setName(name)
 
         if self.label_name is not None:

source/patchcanvas.py

@@ -2612,7 +2612,7 @@ class CanvasBox(QGraphicsItem):
             newNameTry = QInputDialog.getText(self.parentWidget(), "Rename Plugin", "New name:", QLineEdit.Normal, oldName)
 
             if newNameTry[1] and newNameTry[0] and oldName != newNameTry[0]:
-                canvas.callback(ACTION_PLUGIN_RENAME, self.m_plugin_id, 0, newNameTry[0])
+                canvas.callback(ACTION_PLUGIN_RENAME, self.m_plugin_id, self.m_group_id, newNameTry[0])
 
         elif act_selected == act_p_remove:
             canvas.callback(ACTION_PLUGIN_REMOVE, self.m_plugin_id, 0, "")