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QT5_Project/Shared_CODE/DialogModifyAlias.py

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+import sys
+import os
+from PyQt5.QtWidgets import QApplication, QWidget, QDialog, QLabel, QVBoxLayout, QPushButton, QMessageBox, QComboBox, QDialogButtonBox, QShortcut
+from PyQt5 import uic
+from PyQt5.QtGui import QKeySequence
+from PyQt5.QtCore import Qt, QEvent, QObject
+import json
+# from print_color import *
+
+sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), '../..')))
+ui_path = os.path.abspath(os.path.join(os.path.dirname(__file__), '../Shared_UI'))
+ui_file_path = os.path.join(ui_path, "DialogModifyAlias.ui")
+
+class DialogModifyAlias(QDialog):
+    def __init__(self, main_window, parent=None):
+        super(DialogModifyAlias, self).__init__(parent)
+        # Load UI file
+        uic.loadUi(ui_file_path, self)        
+        combo : QComboBox  = self.comboBox
+
+        combo.clear()
+        self.alias_item_dict = {}
+        self.main_window = main_window
+        
+        self.setWindowTitle("别名参数修改")
+        self.setWindowFlag(Qt.FramelessWindowHint)
+        self.buttonBox.button(QDialogButtonBox.Ok).setText('确定')
+        self.buttonBox.button(QDialogButtonBox.Cancel).setText('取消')
+        self.buttonBox.clicked.connect(self.dialog_button_ok_clicked)
+        
+        #定义4个快捷键, Key_Enter, Key_Escape经常被各类程序模块使用, 用Key_End, 与Key_Home来代替
+        QShortcut(QKeySequence(Qt.Key_Up), self, activated=self.key_increase_parameter)
+        QShortcut(QKeySequence(Qt.Key_Down), self, activated=self.key_decrease_parameter)
+        QShortcut(QKeySequence(Qt.Key_PageDown), self, activated=self.key_enter_process)
+        QShortcut(QKeySequence(Qt.Key_PageUp), self, activated=self.key_escape_process)
+        QShortcut(QKeySequence(Qt.Key_End), self, activated=self.key_enter_process)
+        QShortcut(QKeySequence(Qt.Key_Home), self, activated=self.key_escape_process)
+
+        home_button = self.findChild(QPushButton, "KEY_HOME")
+        if home_button:
+            home_button.clicked.connect(self.key_escape_process)
+
+        end_button = self.findChild(QPushButton, "KEY_END")
+        if end_button:
+            end_button.clicked.connect(self.key_enter_process)
+
+        up_button = self.findChild(QPushButton, "KEY_UP")
+        if up_button:
+            up_button.clicked.connect(self.key_increase_parameter)
+
+        down_button = self.findChild(QPushButton, "KEY_DOWN")
+        if down_button:
+            down_button.clicked.connect(self.key_decrease_parameter)
+    
+    def set_caption_name(self, name : str) :
+        label : QLabel = self.label
+        label.setText(name)
+
+    def key_increase_parameter(self):
+        combo : QComboBox  = self.comboBox
+        index = combo.currentIndex()
+        index += 1
+        if index >= combo.count() :
+            index = 0
+        combo.setCurrentIndex(index)
+ 
+    def key_decrease_parameter(self):
+        combo : QComboBox  = self.comboBox
+        index = combo.currentIndex()
+        index -= 1
+        if index < 0 :
+            index = combo.count() - 1
+        combo.setCurrentIndex(index)
+
+    def get_alias_key_str(self):
+        combo : QComboBox  = self.comboBox
+        select_text = combo.currentText()
+        alias_key = None
+        for alias_key, alias_str in self.alias_item_dict.items() :
+            if alias_str == select_text :
+                return alias_key
+        return alias_key
+
+    @property
+    def value(self):
+        alias_key = self.get_alias_key_str()
+        return alias_key
+    
+    def modify_alias_value(self, modify_str) :
+        if self.main_window != None :
+            if hasattr(self.main_window, "func_call_back_on_mqtt_param_modify") :
+                self.main_window.func_call_back_on_mqtt_param_modify(modify_str)
+
+    def key_enter_process(self):
+        alias_key = self.get_alias_key_str()
+        self.modify_alias_value(alias_key)
+        self.buttonBox.button(QDialogButtonBox.Ok).click()
+
+    def key_escape_process(self):
+        self.buttonBox.button(QDialogButtonBox.Cancel).click()
+
+    def set_alias_item_info(self, alias_item_dict, key_value, inform_message : str = "系统参数") :
+        combo : QComboBox  = self.comboBox
+        
+        self.alias_item_dict  = alias_item_dict
+        combo.clear()
+        current_index = 0
+        select_index = -1
+        
+        self.set_caption_name(inform_message)
+
+        for key, value_str in alias_item_dict.items() :
+            combo.addItem(value_str)
+            if key_value == key :
+                select_index = current_index
+            current_index += 1
+        
+        if select_index >= 0 :
+            combo.setCurrentIndex(select_index)
+        else :
+            combo.setCurrentText(key_value)
+
+    def dialog_button_ok_clicked(self, button):
+        if button == self.buttonBox.button(QDialogButtonBox.Ok) :
+            alias_key = self.get_alias_key_str()
+            self.modify_alias_value(alias_key)
+
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    alias_select = {0 : "380V", 1 : "660V", 2: "1140V", 3 : "3300V"}
+    json_msg : str = json.dumps(alias_select, ensure_ascii=False)
+    # print_inform_msg(json_msg)
+    
+    alias_2 = {"alias_voltage" : {0 : "380V", 1 : "660V", 2: "1140V", 3 : "3300V"}}
+    json_msg2 : str = json.dumps(alias_2, ensure_ascii=False)
+    # print_inform_msg(json_msg2)
+    
+    
+    dialog = DialogModifyAlias(None)    
+    dialog.set_alias_item_info(alias_select, 1)
+    dialog.show()
+    result = dialog.exec_()
+    
+    # if dialog.result() == QDialog.Accepted:
+    #     print_inform_msg(dialog.get_alias_key_str())  # 输出: Button clicked
+
+    sys.exit(0)