class PluginConfigPreviewDialog(PluginConfigDialog):
def __init__(self, context, config, title, codec, icon=None):
super(PluginConfigPreviewDialog,
self).__init__(context, config, title, codec, icon)
def _init_main_layout(self):
main_layout = QVBoxLayout()
main_layout.addWidget(self._init_input_frame())
main_layout.addWidget(self._init_preview_frame())
main_layout.addWidget(self._init_error_frame())
self._btn_box = self._init_button_box()
main_layout.addWidget(self._btn_box)
return main_layout
def _init_preview_frame(self):
view_frame = QFrame(self)
view_frame_layout = QHBoxLayout()
self._txt_preview = QPlainTextEdit(self)
self._txt_preview.setReadOnly(True)
self._txt_preview.setLineWrapMode(QPlainTextEdit.NoWrap)
self._txt_preview.customContextMenuRequested.connect(
self._show_preview_frame_context_menu)
self._txt_preview.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
view_frame_layout.addWidget(self._txt_preview)
view_frame.setLayout(view_frame_layout)
return view_frame
def _init_input_frame(self):
input_frame = QGroupBox()
self._input_frame_layout = QHBoxLayout()
input_frame.setLayout(self._input_frame_layout)
return input_frame
def _add_option_widget(self, label: QLabel, widget):
self._input_frame_layout.addWidget(label)
self._input_frame_layout.addWidget(widget)
def _on_change(self):
super(PluginConfigPreviewDialog, self)._on_change()
if self._validate():
self._do_preview()
def _do_preview(self):
try:
result = self._codec(self.config, self._input)
self._txt_preview.setPlainText(result)
return True
except BaseException as e:
return False
def _show_preview_frame_context_menu(self, point: QPoint = None):
""" Displays a customized context menu for the plain view. """
def _on_plain_text_context_menu_wrap_lines(e: QEvent):
""" Un-/wraps lines when user clicks the wrap-lines action within the plain views context-menu. """
if self._txt_preview.lineWrapMode() == QPlainTextEdit.NoWrap:
self._txt_preview.setLineWrapMode(QPlainTextEdit.WidgetWidth)
else:
self._txt_preview.setLineWrapMode(QPlainTextEdit.NoWrap)
if not point:
point = QCursor.pos()
context_menu = self._txt_preview.createStandardContextMenu()
context_menu.addSeparator()
wrap_lines_action = QAction(self)
wrap_lines_action.setText("Wrap Lines")
wrap_lines_action.setCheckable(True)
wrap_lines_action.setChecked(
self._txt_preview.lineWrapMode() == QPlainTextEdit.WidgetWidth)
wrap_lines_action.triggered.connect(
_on_plain_text_context_menu_wrap_lines)
context_menu.addAction(wrap_lines_action)
context_menu.exec(self._txt_preview.mapToGlobal(point))
