- added a method to gracefully exit from threaded tasks and implemented it for the NCC Tool and for the Paint Tool

- modified the on_about() function to reflect the reality in 2019 - FlatCAM it is an Open Source contributed software

flatcamGUI/FlatCAMGUI.py

@@ -1253,7 +1253,15 @@ class FlatCAMGUI(QtWidgets.QMainWindow):
                     <tr height="20">
                         <td height="20"><strong>ALT+F10</strong></td>
                         <td>&nbsp;Toggle Full Screen</td>
+                    </tr>                 
+                    <tr height="20">
+                        <td height="20">&nbsp;</td>
+                        <td>&nbsp;</td>
                     </tr>
+                    <tr height="20">
+                        <td height="20"><strong>CTRL+ALT+X</strong></td>
+                        <td>&nbsp;Abort current task (gracefully)</td>
+                    </tr>                    
                     <tr height="20">
                         <td height="20">&nbsp;</td>
                         <td>&nbsp;</td>
@@ -2163,7 +2171,12 @@ class FlatCAMGUI(QtWidgets.QMainWindow):
             key = event.key
 
         if self.app.call_source == 'app':
-            if modifiers == QtCore.Qt.ControlModifier:
+            if modifiers == QtCore.Qt.ControlModifier | QtCore.Qt.AltModifier:
+                if key == QtCore.Qt.Key_X:
+                    self.app.abort_all_tasks()
+                    return
+
+            elif modifiers == QtCore.Qt.ControlModifier:
                 if key == QtCore.Qt.Key_A:
                     self.app.on_selectall()
 

flatcamGUI/GUIElements.py

@@ -1743,7 +1743,7 @@ class _BrowserTextEdit(QTextEdit):
 
     def clear(self):
         QTextEdit.clear(self)
-        text = "FlatCAM %s - Type help to get started\n\n" % self.version
+        text = "FlatCAM %s - Open Source Software - Type help to get started\n\n" % self.version
         text = html.escape(text)
         text = text.replace('\n', '<br/>')
         self.moveCursor(QTextCursor.End)