最近接觸PyQGIS
我有兩個class
FreehandCustomer是QGIS在製作plugin的預設框架
MyMapTool是我後面加上去的
MyMapTool單獨執行確定是可以動作的
FreehandCustomer似乎要再呼叫一個freehand_customer_dialog才可以對ui上的物件作相對應的動作
目前遇到的瓶頸是
FreehandCustomer底下的Call_maptool可以呼叫MyMapTool下的canvasMoveEvent 也可以正常print
卻無法執行self.freehand.dlg.lineEdit_5.setText("test")也沒有報錯
但是self.freehand.dlg.lineEdit_5.setText("test")寫在FreehandCustomer底下是可以正常動作的
感謝

點選取得地圖座標的按鈕
可以正常執行另一個class的抓經緯度的函式
但卻無法設定圖片下方寫著lineEdit文字的物件

from qgis.PyQt.QtCore import QSettings, QTranslator, QCoreApplication,Qt,QItemSelectionModel
from qgis.PyQt.QtGui import QIcon
from qgis.PyQt.QtWidgets import QAction
from qgis.core import QgsProject,QgsVectorFileWriter,QgsFeatureRequest,QgsSymbol,QgsRuleBasedRenderer,QgsSvgMarkerSymbolLayer,QgsMarkerSymbol
from PyQt5.QtWidgets import  QApplication,QWidget,QToolBar,QMessageBox
from PyQt5 import QtCore,QtGui
# Initialize Qt resources from file resources.py
from .resources import *
# Import the code for the dialog
from .freehand_customer_dialog import FreehandCustomerDialog
import os.path
from qgis.utils import iface
from qgis.gui import QgsMapTool,QgsMapToolEmitPoint,QgsMapTool,QgsMapToolIdentifyFeature
from PyQt5.QtWidgets import *
from PyQt5 import QtWidgets
from PyQt5.QtGui import QStandardItemModel,QStandardItem,QColor,QDoubleValidator,QTextCursor,QImage,QPixmap
from datetime import datetime
import csv,os



            
class MyMapTool(QgsMapTool):
    def __init__(self, canvas):
        # 在這裡初始化 MyMapTool 類
        super().__init__(canvas)
        self.freehand = FreehandCustomer(self)
      
    def canvasPressEvent(self, event):
        # 在這裡實現鼠標按下事件的處理
        pass
    def canvasMoveEvent(self, event):
        # 在這裡實現鼠標移動事件的處理 
        print(event.mapPoint().toString())
        self.freehand.dlg.lineEdit_5.setText("test")
    def canvasReleaseEvent(self, event):
        # 在這裡實現鼠標鬆開事件的處理
        pass


class FreehandCustomer:
    """QGIS Plugin Implementation."""

    def __init__(self, iface):
        """Constructor.

        :param iface: An interface instance that will be passed to this class
            which provides the hook by which you can manipulate the QGIS
            application at run time.
        :type iface: QgsInterface
        """
        # Save reference to the QGIS interface
        self.iface = iface
        # initialize plugin directory
        self.plugin_dir = os.path.dirname(__file__)
        # initialize locale
        locale = QSettings().value('locale/userLocale')[0:2]
        locale_path = os.path.join(
            self.plugin_dir,
            'i18n',
            'FreehandCustomer_{}.qm'.format(locale))
         # 創建 MyMapTool 對象 呼叫另一個class
        self.dlg = FreehandCustomerDialog()

        

        if os.path.exists(locale_path):
            self.translator = QTranslator()
            self.translator.load(locale_path)
            QCoreApplication.installTranslator(self.translator)

        # Declare instance attributes
        self.actions = []
        self.menu = self.tr(u'&Freehand Customer')

        # Check if plugin was started the first time in current QGIS session
        # Must be set in initGui() to survive plugin reloads
        self.first_start = None
    def Call_maptool(self):
        self.maptool = MyMapTool(iface.mapCanvas())
        iface.mapCanvas().setMapTool(self.maptool)

from .freehand_customer_dialog import FreehandCustomerDialog

import os

from qgis.PyQt import uic
from qgis.PyQt import QtWidgets

# This loads your .ui file so that PyQt can populate your plugin with the elements from Qt Designer
FORM_CLASS, _ = uic.loadUiType(os.path.join(
    os.path.dirname(__file__), 'freehand_customer_dialog_base.ui'))


class FreehandCustomerDialog(QtWidgets.QDialog, FORM_CLASS):
    def __init__(self, parent=None):
        """Constructor."""
        super(FreehandCustomerDialog, self).__init__(parent)
        # Set up the user interface from Designer through FORM_CLASS.
        # After self.setupUi() you can access any designer object by doing
        # self.<objectname>, and you can use autoconnect slots - see
        # http://qt-project.org/doc/qt-4.8/designer-using-a-ui-file.html
        # #widgets-and-dialogs-with-auto-connect
        self.setupUi(self)