C++ (Cpp) TextEditor::get_undo_stack示例

示例#1

文件： text_editor_widget.cpp 项目： vlag/solarus-quest-editor

/**
 * @brief Constructor.
 * @param file_path Path of the file to open.
 * @param editor The parent object.
 */
TextEditorWidget::TextEditorWidget(const QString& file_path, TextEditor& editor):
  QPlainTextEdit(file_path, &editor),
  line_number_area(new LineNumberArea(*this)),
  undo_stack(editor.get_undo_stack()),
  tab_length(2),
  replace_tab_by_spaces(false) {

  // Undo/redo system.
  connect(document(), SIGNAL(undoCommandAdded()),
          this, SLOT(undo_command_added()));

  // Line number displaying.
  connect(this, SIGNAL(blockCountChanged(int)),
          this, SLOT(update_line_number_area_width(int)));
  connect(this, SIGNAL(updateRequest(const QRect&, int)),
          this, SLOT(update_line_number_area(const QRect&, int)));
  connect(this, SIGNAL(cursorPositionChanged()),
          this, SLOT(highlight_current_line()));

  update_line_number_area_width(0);
  highlight_current_line();
}