def __init__(self, parent=None):
super().__init__()
config_loader.load_all()
# ui
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.ui.graphics_view.setScene(QGraphicsScene())
self.view = self.ui.graphics_view
self.scene = self.ui.graphics_view.scene()
self.ui.polygon_table_widget.setColumnCount(2)
self.ui.polygon_table_widget.setSelectionMode(QtWidgets.QAbstractItemView.SingleSelection)
self.ui.polygon_table_widget.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows)
self.ui.polygon_table_widget.setEditTriggers(QtWidgets.QAbstractItemView.NoEditTriggers)
self.ui.second_table_widget.setSelectionMode(QtWidgets.QAbstractItemView.SingleSelection)
self.ui.second_table_widget.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows)
self.ui.second_table_widget.setEditTriggers(QtWidgets.QAbstractItemView.NoEditTriggers)
self.ui.insert_layer_combo_box.addItems(config_loader.get_layer_names())
self.ui.graphics_view.scale(1, -1) # invert y
# data
self.db = DbHelper()
self.command_handler = MapCommand(self.db)
self.path = None
# fsm
self.__init_fsm()
# other signals/slots
self.command_handler.gotoPolygon.connect(self.goto_polygon)
self.ui.polygon_table_widget.itemSelectionChanged.connect(self.polygon_selection_changed)
self.ui.polygon_table_widget.itemClicked.connect(self.polygon_selection_clicked)
self.ui.polygon_table_widget.polygonActivated.connect(self.goto_polygon)
self.ui.second_table_widget.itemSelectionChanged.connect(self.second_selection_changed)
self.ui.second_table_widget.polygonActivated.connect(self.goto_polygon)
self.ui.scale_slider.valueChanged.connect(self.scale_slider_changed)
self.ui.graphics_view.polygonCreated.connect(self.add_polygon)
self.ui.graphics_view.polygonUpdated.connect(self.update_polygon)
self.ui.graphics_view.pointsUpdated.connect(self.update_points)
log.logger.onLog.connect(self.print_to_output)
# open default database
self.setAcceptDrops(True)
self.open("default.sqlite", True)
class MainWindow(QMainWindow):
def __init__(self, parent=None):
super().__init__()
config_loader.load_all()
# ui
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.ui.graphics_view.setScene(QGraphicsScene())
self.view = self.ui.graphics_view
self.scene = self.ui.graphics_view.scene()
self.ui.polygon_table_widget.setColumnCount(2)
self.ui.polygon_table_widget.setSelectionMode(QtWidgets.QAbstractItemView.SingleSelection)
self.ui.polygon_table_widget.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows)
self.ui.polygon_table_widget.setEditTriggers(QtWidgets.QAbstractItemView.NoEditTriggers)
self.ui.second_table_widget.setSelectionMode(QtWidgets.QAbstractItemView.SingleSelection)
self.ui.second_table_widget.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows)
self.ui.second_table_widget.setEditTriggers(QtWidgets.QAbstractItemView.NoEditTriggers)
self.ui.insert_layer_combo_box.addItems(config_loader.get_layer_names())
self.ui.graphics_view.scale(1, -1) # invert y
# data
self.db = DbHelper()
self.command_handler = MapCommand(self.db)
self.path = None
# fsm
self.__init_fsm()
# other signals/slots
self.command_handler.gotoPolygon.connect(self.goto_polygon)
self.ui.polygon_table_widget.itemSelectionChanged.connect(self.polygon_selection_changed)
self.ui.polygon_table_widget.itemClicked.connect(self.polygon_selection_clicked)
self.ui.polygon_table_widget.polygonActivated.connect(self.goto_polygon)
self.ui.second_table_widget.itemSelectionChanged.connect(self.second_selection_changed)
self.ui.second_table_widget.polygonActivated.connect(self.goto_polygon)
self.ui.scale_slider.valueChanged.connect(self.scale_slider_changed)
self.ui.graphics_view.polygonCreated.connect(self.add_polygon)
self.ui.graphics_view.polygonUpdated.connect(self.update_polygon)
self.ui.graphics_view.pointsUpdated.connect(self.update_points)
log.logger.onLog.connect(self.print_to_output)
# open default database
self.setAcceptDrops(True)
self.open("default.sqlite", True)
def __init_fsm(self):
"""初始化 UI 状态机"""
self.fsm_mgr = FsmMgr()
self.fsm_mgr.changeState.connect(self.change_state)
self.fsm_mgr.get_fsm("insert").enterState.connect(self.ui.graphics_view.begin_insert)
self.fsm_mgr.get_fsm("insert").exitState.connect(self.ui.graphics_view.end_insert)
self.fsm_mgr.get_fsm("normal").transferToState.connect(
lambda name: self.ui.graphics_view.begin_move() if (name == "move") else None
)
self.fsm_mgr.get_fsm("normal").transferToState.connect(
lambda name: self.ui.graphics_view.begin_move() if (name == "move_point") else None
)
self.fsm_mgr.get_fsm("move").transferToState.connect(
lambda name: self.ui.graphics_view.end_move() if (name == "normal") else None
)
self.fsm_mgr.get_fsm("move_point").transferToState.connect(
lambda name: self.ui.graphics_view.end_move() if (name == "normal") else None
)
self.change_state(self.fsm_mgr.get_current_state())
# slots
@pyqtSlot(QObject)
def change_state(self, new_state):
"""UI 状态转移"""
if new_state == self.fsm_mgr.get_fsm("empty"):
self.ui.save_action.setEnabled(False)
self.ui.undo_action.setEnabled(False)
self.ui.redo_action.setEnabled(False)
self.ui.insert_action.setEnabled(False)
self.ui.delete_action.setEnabled(False)
self.ui.move_action.setEnabled(False)
self.ui.graphics_view.setCursor(QCursor(Qt.ForbiddenCursor))
self.ui.polygon_table_widget.setEnabled(False)
self.ui.list2_type_label.setText("")
if new_state == self.fsm_mgr.get_fsm("normal"):
self.ui.save_action.setEnabled(True)
self.ui.undo_action.setEnabled(True)
self.ui.redo_action.setEnabled(True)
self.ui.insert_action.setEnabled(True)
self.ui.delete_action.setEnabled(True)
self.ui.move_action.setEnabled(True)
self.ui.graphics_view.setCursor(QCursor(Qt.ArrowCursor))
self.ui.polygon_table_widget.setEnabled(True)
self.ui.list2_type_label.setText("children")
elif new_state == self.fsm_mgr.get_fsm("insert"):
self.ui.undo_action.setEnabled(False)
self.ui.redo_action.setEnabled(False)
self.ui.insert_action.setEnabled(True)
self.ui.delete_action.setEnabled(False)
self.ui.move_action.setEnabled(False)
self.ui.graphics_view.setCursor(QCursor(Qt.CrossCursor))
self.ui.polygon_table_widget.setEnabled(True)
self.ui.list2_type_label.setText("children")
elif new_state == self.fsm_mgr.get_fsm("move"):
self.ui.undo_action.setEnabled(False)
self.ui.redo_action.setEnabled(False)
self.ui.insert_action.setEnabled(False)
self.ui.delete_action.setEnabled(False)
self.ui.move_action.setEnabled(True)
self.ui.graphics_view.setCursor(QCursor(Qt.DragMoveCursor))
self.ui.polygon_table_widget.setEnabled(False)
self.ui.list2_type_label.setText("points")
elif new_state == self.fsm_mgr.get_fsm("move_point"):
self.ui.undo_action.setEnabled(False)
self.ui.redo_action.setEnabled(False)
self.ui.insert_action.setEnabled(False)
self.ui.delete_action.setEnabled(False)
self.ui.move_action.setEnabled(True)
self.ui.graphics_view.setCursor(QCursor(Qt.DragMoveCursor))
self.ui.polygon_table_widget.setEnabled(False)
self.ui.list2_type_label.setText("points")
@pyqtSlot()
def on_open_action_triggered(self):
"""点击“打开”按钮"""
path = QFileDialog.getOpenFileName(self, "载入数据", ".", "数据库文档(*.sqlite)")[0]
if path:
self.open(path)
@pyqtSlot()
def on_save_action_triggered(self):
"""点击“保存”按钮"""
if self.path is not None:
self.save(self.path)
@pyqtSlot()
def on_undo_action_triggered(self):
"""点击“撤销”按钮"""
try:
self.command_handler.undo()
self.update_polygon_list()
except Exception as e:
log.error("撤销操作出错: %s" % repr(e))
return False
else:
return True
@pyqtSlot()
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
@pyqtSlot()
def on_insert_action_triggered(self):
"""点击“插入”按钮"""
if self.ui.insert_action.isChecked():
if not self.fsm_mgr.change_fsm("normal", "insert"):
self.ui.insert_action.setChecked(False)
else:
if not self.fsm_mgr.change_fsm("insert", "normal"):
self.ui.insert_action.setChecked(True)
@pyqtSlot()
def on_delete_action_triggered(self):
"""点击“删除”按钮"""
_id = self.selected_id()
if _id >= 0:
row = self.ui.polygon_table_widget.currentRow()
self.execute("del shape %d" % _id)
self.ui.polygon_table_widget.setCurrentCell(row, 0)
@pyqtSlot()
def on_about_action_triggered(self):
"""点击“关于”按钮"""
info = "L5MapEditor by bssthu\n\n" "https://github.com/bssthu/L5MapEditor"
QMessageBox.about(self, "关于", info)
@pyqtSlot()
def on_exit_action_triggered(self):
"""点击“退出”按钮"""
exit()
@pyqtSlot()
def on_move_action_triggered(self):
"""点击“移动”按钮"""
state_name = "move" if not self.ui.move_point_action.isChecked() else "move_point"
if self.ui.move_action.isChecked():
if not self.fsm_mgr.change_fsm("normal", state_name):
self.ui.move_action.setChecked(False)
else:
if not self.fsm_mgr.change_fsm(state_name, "normal"):
self.ui.move_action.setChecked(True)
@pyqtSlot()
def on_move_point_action_triggered(self):
"""点击“拾取点”按钮"""
self.ui.graphics_view.move_point(self.ui.move_point_action.isChecked())
if self.ui.move_point_action.isChecked():
self.fsm_mgr.change_fsm("move", "move_point")
else:
self.fsm_mgr.change_fsm("move_point", "move")
@pyqtSlot()
def on_closed_polygon_action_triggered(self):
"""点击“绘制封闭多边形”按钮"""
self.ui.graphics_view.draw_closed_polygon(self.ui.closed_polygon_action.isChecked())
@pyqtSlot()
def on_highlight_action_triggered(self):
"""点击“突出显示图形”按钮"""
self.ui.graphics_view.highlight_selection(self.ui.highlight_action.isChecked())
@pyqtSlot()
def on_grid_action_triggered(self):
"""点击“显示网格”按钮"""
pass
@pyqtSlot()
def on_mark_points_action_triggered(self):
"""点击“标出点”按钮"""
self.ui.graphics_view.mark_points(self.ui.mark_points_action.isChecked())
@pyqtSlot()
def on_command_edit_returnPressed(self):
"""输入命令后按下回车"""
commands = self.ui.command_edit.text().strip()
if commands != "":
# 执行命令
self.execute(commands)
self.ui.command_edit.setText("")
def lock_ui(self):
"""锁定 UI"""
self.ui.tool_bar.setEnabled(False)
@pyqtSlot()
def unlock_ui(self):
"""解锁 UI"""
self.ui.tool_bar.setEnabled(True)
self.ui.graphics_view.scene().update()
@pyqtSlot(list)
def update_child_list(self, polygon_table):
"""更新 children 列表
Args:
polygon_table: 多边形表
"""
self.ui.second_table_widget.fill_with_polygons(polygon_table)
@pyqtSlot(QTableWidgetItem)
def polygon_selection_clicked(self, item):
self.polygon_selection_changed()
@pyqtSlot()
def polygon_selection_changed(self):
"""在多边形列表中选择了多边形"""
_id = self.selected_id()
if _id >= 0:
# draw polygon
polygon = self.db.get_polygon_by_id(_id)
# list children
child_list = self.db.get_children_table_by_id(_id)
else:
# 选中了非法的多边形
polygon = None
child_list = {}
self.ui.graphics_view.set_selected_polygon(polygon)
self.update_child_list(child_list)
return
@pyqtSlot()
def second_selection_changed(self):
"""在第二列选中"""
if self.ui.move_action.isChecked():
self.ui.graphics_view.select_point(self.ui.second_table_widget.currentRow())
if self.ui.second_table_widget.is_polygon:
_id = self.ui.second_table_widget.get_selected_id()
polygon = self.db.get_polygon_by_id(_id)
if polygon is not None:
self.ui.graphics_view.set_selected_polygon(polygon)
@pyqtSlot()
def scale_slider_changed(self):
"""修改地图缩放比例"""
scale = math.exp(self.ui.scale_slider.value() / 10)
self.ui.graphics_view.resetTransform()
self.ui.graphics_view.scale(scale, -scale)
@pyqtSlot(list)
def add_polygon(self, vertices):
"""插入多边形
Args:
vertices (list[list[float]]): 多边形顶点 list, [[x1,y1], [x2,y2], ..., [xn,yn]]
"""
parent_id = self.selected_id()
_id = self.command_handler.get_spare_id(parent_id)
layer = self.ui.insert_layer_combo_box.currentIndex()
additional = 0
if layer == 0:
commands = ["add shape %d %d %s" % (_id, layer, str(additional))]
else:
commands = ["add shape %d %d %s %d" % (_id, layer, str(additional), parent_id)]
for vertex in vertices:
commands.append("add pt %d %f %f" % (_id, vertex[0], vertex[1]))
self.execute(commands)
@pyqtSlot("PyQt_PyObject")
def goto_polygon(self, _id):
"""视角聚焦到多边形中心
Args:
_id (int): 目标多边形 id
"""
self.ui.graphics_view.center_on_polygon(self.db.get_polygon_by_id(_id))
@pyqtSlot(list)
def update_polygon(self, vertices):
"""修改当前选中的多边形的顶点坐标
Args:
vertices (list[list[float]]): 多边形顶点 list, [[x1,y1], [x2,y2], ..., [xn,yn]]
"""
_id = self.selected_id()
commands = []
for pt_id in range(0, len(vertices)):
x = vertices[pt_id][0]
y = vertices[pt_id][1]
commands.append("set pt %d %d %f %f" % (_id, pt_id, x, y))
self.execute(commands)
@pyqtSlot(list)
def update_points(self, points):
"""更新第二列显示的点
编辑模式下，第二列显示当前图形的点的坐标。本方法用于更新第二列的显示。
Args:
points (list[QPointF]): 多边形顶点 list, [qpoint1, qpoint2, ..., qpointn]
"""
row = self.ui.second_table_widget.currentRow()
self.ui.second_table_widget.fill_with_points(points)
row_count = self.ui.second_table_widget.rowCount()
if row_count > 0:
row = min(row_count - 1, max(0, row))
self.ui.second_table_widget.setCurrentCell(row, 0)
@pyqtSlot(str, QColor)
def print_to_output(self, msg, color):
"""打印到输出窗口
Args:
msg (str): 输出内容
color (QColor): 输出颜色
"""
print(msg)
self.ui.output_browser.setTextColor(color)
self.ui.output_browser.append(msg)
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 update_polygon_list(self):
"""更新多边形列表"""
polygon_table = self.db.polygon_table
_id = self.selected_id()
self.ui.polygon_table_widget.fill_with_polygons(polygon_table)
self.ui.graphics_view.set_polygons(polygon_table, len(config_loader.get_layer_names()))
if len(polygon_table) > 0:
if not self.select_row_by_id(_id):
self.ui.polygon_table_widget.setCurrentCell(0, 0)
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)
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 selected_id(self):
"""选中的多边形的 id"""
return self.ui.polygon_table_widget.get_selected_id()
def select_row_by_id(self, polygon_id):
"""根据多边形的 id 选中行
Args:
polygon_id (int): 多边形 id
"""
return self.ui.polygon_table_widget.select_id(polygon_id)
def show_message(self, msg, title="L5MapEditor"):
QMessageBox.information(self, title, msg)
def dragEnterEvent(self, event):
if event.mimeData().hasUrls():
event.accept()
else:
event.ignore()
def dropEvent(self, event):
url = event.mimeData().urls()[0]
if url.isLocalFile():
path = url.toLocalFile()
if os.path.isfile(path):
self.open(path)