dialog to edit valueColors for triColorLines

sohstationviewer/view/db_config/value_color_helper/edit_value_color_dialog/tri_color_lines_dialog.py

+import sys
+import platform
+import os
+
+from PySide2 import QtWidgets
+from PySide2.QtWidgets import QWidget
+
+from sohstationviewer.view.db_config.value_color_helper.\
+    edit_value_color_dialog.edit_value_color_dialog_super_class import \
+    EditValueColorDialog, display_color
+
+
+class TriColorLinesDialog(EditValueColorDialog):
+    def __init__(self, parent: QWidget, value_color_str: str):
+        """
+        Dialog to edit color for Up/Down Plot
+
+        :param parent: the parent widget
+        :param value_color_str: string for value color to be saved in DB
+        """
+        # Widget that allow user to add/edit value positive one's color
+        self.select_pos_one_color_btn = QtWidgets.QPushButton("Select Color")
+        # Widget to display positive one's color
+        self.pos_one_color_label = QtWidgets.QLabel()
+        self.pos_one_color_label.setFixedWidth(30)
+        self.pos_one_color_label.setAutoFillBackground(True)
+
+        # Widget that allow user to add/edit value zero's color
+        self.select_zero_color_btn = QtWidgets.QPushButton("Select Color")
+        # Widget to display down's color
+        self.zero_color_label = QtWidgets.QLabel()
+        self.zero_color_label.setFixedWidth(30)
+        self.zero_color_label.setAutoFillBackground(True)
+
+        # Widget that allow user to add/edit value positive one's color
+        self.select_neg_one_color_btn = QtWidgets.QPushButton("Select Color")
+        # Widget to display positive one's color
+        self.neg_one_color_label = QtWidgets.QLabel()
+        self.neg_one_color_label.setFixedWidth(30)
+        self.neg_one_color_label.setAutoFillBackground(True)
+
+        super(TriColorLinesDialog, self).__init__(parent, value_color_str)
+        self.setWindowTitle("Edit TriColor Plotting's Colors")
+
+    def setup_ui(self) -> None:
+        self.main_layout.addWidget(QtWidgets.QLabel('"  1" Color'), 0, 0, 1, 1)
+        self.main_layout.addWidget(self.pos_one_color_label, 0, 1, 1, 1)
+        self.main_layout.addWidget(self.select_pos_one_color_btn, 0, 2, 1, 1)
+
+        self.main_layout.addWidget(QtWidgets.QLabel('"  0" Color'), 1, 0, 1, 1)
+        self.main_layout.addWidget(self.zero_color_label, 1, 1, 1, 1)
+        self.main_layout.addWidget(self.select_zero_color_btn, 1, 2, 1, 1)
+
+        self.main_layout.addWidget(QtWidgets.QLabel('"-1" Color'), 2, 0, 1, 1)
+        self.main_layout.addWidget(self.neg_one_color_label, 2, 1, 1, 1)
+        self.main_layout.addWidget(self.select_neg_one_color_btn, 2, 2, 1, 1)
+
+        self.setup_complete_buttons(3)
+
+    def connect_signals(self) -> None:
+        self.select_pos_one_color_btn.clicked.connect(
+            lambda: self.on_select_color(self.pos_one_color_label))
+        self.select_zero_color_btn.clicked.connect(
+            lambda: self.on_select_color(self.zero_color_label))
+        self.select_neg_one_color_btn.clicked.connect(
+            lambda: self.on_select_color(self.neg_one_color_label))
+        super().connect_signals()
+
+    def set_value(self):
+        """
+        Change the corresponding color_labels's color according to the color
+            from value_color_str.
+        """
+        if self.value_color_str == "":
+            return
+        vc_parts = self.value_color_str.split('|')
+        for vc_str in vc_parts:
+            val, color = vc_str.split(':')
+            if val == '1':
+                display_color(self.pos_one_color_label, color)
+            if val == '0':
+                display_color(self.zero_color_label, color)
+            if val == '-1':
+                display_color(self.neg_one_color_label, color)
+
+    def on_save_color(self):
+        """
+        Create value_color_str from GUI's info and close the GUI with color
+            is the hex color got from color_labels' color
+        """
+        pos_one_color = self.pos_one_color_label.palette()\
+            .window().color().name()
+        zero_color = self.zero_color_label.palette().window().color().name()
+        neg_one_color = self.neg_one_color_label.palette() \
+            .window().color().name()
+
+        self.value_color_str = (f"-1:{neg_one_color}|0:{zero_color}"
+                                f"|1:{pos_one_color}")
+        self.close()
+
+
+if __name__ == '__main__':
+    os_name, version, *_ = platform.platform().split('-')
+    if os_name == 'macOS':
+        os.environ['QT_MAC_WANTS_LAYER'] = '1'
+    app = QtWidgets.QApplication(sys.argv)
+    test = TriColorLinesDialog(None, '-1:#FF00FF|0:#FF0000|1:#00FF00')
+    test.exec_()
+    sys.exit(app.exec_())