class OffsetCalculatorMode(QObject, Mode):
"""
This modes computes the selected PIC fields offsets.
It adds a "Calculate PIC offsets" action to the editor context menu and
emits the signal |pic_infos_available| when the the user triggered the
action and the pic infos have been computed.
"""
pic_infos_available = Signal(list)
def __init__(self):
if os.environ['QT_API'] in (PYQT4_API + PYSIDE_API):
QObject.__init__(self)
Mode.__init__(self)
else:
super().__init__()
def on_install(self, editor):
super().on_install(editor)
self.action = QAction(editor)
self.action.setText(_("Calculate PIC offsets"))
self.action.setIcon(QIcon.fromTheme('accessories-calculator'))
self.action.setShortcut('Ctrl+Shift+O')
self.action.setToolTip(_('Compute the PIC offset of the fields in the '
'selected text'))
editor.add_action(self.action, sub_menu='COBOL')
self.action.triggered.connect(self._compute_offsets)
@Slot()
def _compute_offsets(self):
original_tc = self.editor.textCursor()
tc = self.editor.textCursor()
start = tc.selectionStart()
end = tc.selectionEnd()
tc.setPosition(start)
start_line = tc.blockNumber()
tc.setPosition(end)
end_line = tc.blockNumber()
th = TextHelper(self.editor)
th.select_lines(start=start_line, end=end_line, apply_selection=True)
source = th.selected_text()
results = get_field_infos(source, self.editor.free_format)
self.editor.setTextCursor(original_tc)
self.pic_infos_available.emit(results)
