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import sys

from PySide6.QtWidgets import QMainWindow, QApplication

from matplotlib.figure import Figure
from matplotlib.backends.backend_qt5agg import FigureCanvas

import sys

from PySide6.QtWidgets import QMainWindow, QApplication, QVBoxLayout, QLabel, QLineEdit, QWidget
from PySide6.QtCore import Qt

from matplotlib.figure import Figure
from matplotlib.backends.backend_qt5agg import FigureCanvas


class MyWindow(QMainWindow):

    def __init__(self):
        super().__init__()
        self.setWindowTitle("MatPlotLib bar graph into Qt app")

        # Layout principal
        main_layout = QVBoxLayout()

        # Un Widget MatPlotLib est placé au centre
        self.__canvas = FigureCanvas(Figure())
        self.__canvas.mpl_connect("button_press_event", self.canvasClicked)
        self.__plt = self.__canvas.figure.subplots()

        main_layout.addWidget(self.__canvas)

        # Labels et LineEdits pour afficher les informations
        self.xy_label = QLabel("XY:")
        self.xy_edit = QLineEdit()
        self.xy_edit.setReadOnly(True)

        self.width_label = QLabel("Width:")
        self.width_edit = QLineEdit()
        self.width_edit.setReadOnly(True)

        self.height_label = QLabel("Height:")
        self.height_edit = QLineEdit()
        self.height_edit.setReadOnly(True)

        self.angle_label = QLabel("Angle:")
        self.angle_edit = QLineEdit()
        self.angle_edit.setReadOnly(True)

        main_layout.addWidget(self.xy_label)
        main_layout.addWidget(self.xy_edit)
        main_layout.addWidget(self.width_label)
        main_layout.addWidget(self.width_edit)
        main_layout.addWidget(self.height_label)
        main_layout.addWidget(self.height_edit)
        main_layout.addWidget(self.angle_label)
        main_layout.addWidget(self.angle_edit)

        central_widget = QWidget()
        central_widget.setLayout(main_layout)
        self.setCentralWidget(central_widget)

        # Données d'exemple
        x = list("ABCD")  # Possible, car une string est itérable !
        y = [10, 20, 30, 40]

        # Tracé du graphe en barres
        self.__plt.bar(x, y)

        # Décoration du graphe
        self.__plt.set_xlabel("Variable X")
        self.__plt.set_ylabel("Variable Y")
        self.__plt.set_title("Exemple de graphique en barres MPL intégré dans Qt")

    def canvasClicked(self, event):
        for rect in self.__plt.containers:
            for bar in rect:
                if bar.contains(event)[0]:
                    self.display_bar_info(bar)
                    return

    def display_bar_info(self, bar):
        xy = bar.get_xy()
        width = bar.get_width()
        height = bar.get_height()
        angle = bar.get_angle()

        self.xy_edit.setText(f"({xy[0]}, {xy[1]})")
        self.width_edit.setText(str(width))
        self.height_edit.setText(str(height))
        self.angle_edit.setText(str(angle))


if __name__ == "__main__":
    app = QApplication(sys.argv)

    myWindow = MyWindow()
    myWindow.show()

    sys.exit(app.exec())