def load_layer_names():
global LAYER_NAMES
with open('conf/PolygonLayer.cfg', encoding='utf-8') as fp:
try:
string = ''.join(fp.readlines())
layer_name_json = json.loads(string)
LAYER_NAMES = tuple(layer_name_json['layer_name'])
except Exception as e:
log.error(repr(e))
def on_redo_action_triggered(self):
"""点击“重做”按钮"""
try:
self.command_handler.redo()
self.update_polygon_list()
except Exception as e:
log.error("重做操作出错: %s" % repr(e))
return False
else:
return True
def save(self, path):
"""保存 sqlite 数据库文件
Args:
path (str): 文件路径
"""
try:
self.db.write_to_file(path)
self.command_handler.reset_backup_data()
log.debug('Save "%s".' % path)
except sqlite3.Error as error:
log.error('Failed to save "%s".' % path)
log.error(repr(error))
self.show_message(repr(error))
def execute(self, commands):
"""执行命令
Args:
commands (str): 待执行命令
"""
log.debug(commands)
try:
self.command_handler.execute(commands)
self.update_polygon_list()
except Exception as e:
log.error("执行命令出错: %s" % repr(e))
return False
else:
return True
def open(self, path, quiet=False):
"""打开 sqlite 数据库文件
Args:
path (str): 文件路径
quiet (bool): 报错不弹框
"""
if os.path.exists(path):
try:
self.db.load_tables(path)
self.command_handler.reset_backup_data()
self.update_polygon_list()
self.path = path
self.fsm_mgr.change_fsm("empty", "normal")
log.debug('Open "%s".' % path)
except sqlite3.Error as error:
log.error('Failed to open "%s".' % path)
log.error(repr(error))
if not quiet:
self.show_message(repr(error))
else:
log.error("File %s not exists." % path)
if not quiet:
self.show_message("File %s not exists." % path)
