#!/usr/bin/env python3


from PyQt6.QtCore import *
from PyQt6.QtGui import *
from PyQt6.QtWidgets import *
import sys

class MagpyPlainTextEdit(QPlainTextEdit):
    def focusOutEvent(self, event):
        super().focusOutEvent(event)
        if event.lostFocus():
            self.parentWidget().to_view(event)


class MagpyTextToggle(QStackedWidget):
    def __init__(self, parent, doc=None):
        QStackedWidget.__init__(self, parent)

        self.editbox = MagpyPlainTextEdit(self)
        self.displaybox = QTextEdit(self)
        self.displaybox.setReadOnly(True)
        self.addWidget(self.editbox)
        self.addWidget(self.displaybox)

        if doc:
            self.doc = doc
        else:
            self.doc = QTextDocument(self)
            self.doc.setDocumentLayout(QPlainTextDocumentLayout(self.doc))

        self.editbox.setDocument(self.doc)

        self.displaybox.mouseReleaseEvent=self.to_edit

        self.to_view(None)



    def to_edit(self, event):
        print("to_edit!")
        self.setCurrentIndex(0)

    def to_view(self, event):
        print("to_view!")
        self.setCurrentIndex(1)
        self.displaybox.setMarkdown(self.doc.toPlainText())


class MagpyContainer(QWidget):
    def __init__(self, parent, doc=None):
        QWidget.__init__(self, parent)

        vlayout = QVBoxLayout(self)

        for i in range(8):
            vlayout.addWidget(MagpyTextToggle(self, doc))

        self.setLayout(vlayout)

        # scroll = QScrollArea(self)
        # scroll.setWidget(self)
        # scroll.setWidgetResizable(True)


class ProtoMagpy(QMainWindow):
    def __init__(self, parent=None):
        QMainWindow.__init__(self, parent)

        self.filename = ''
        self.actions = {}

        self.initUI()
        self.initActions()


    def initActions(self):
        self.actions['quit'] = QAction('Quit', self)
        self.actions['quit'].setShortcut(QKeySequence('Ctrl+Q'))
        self.actions['quit'].triggered.connect(self.close)

        s = QShortcut(QKeySequence('Ctrl+T'), self)
        s.activated.connect(self.pagedown)

    def pagedown(self):
        print(QApplication.focusWidget())

    def initUI(self):
        top_level = MagpyContainer(self)
        self.setCentralWidget(top_level)


        self.statusbar = self.statusBar()

        self.setGeometry(100, 100, 1030, 800)
        self.setWindowTitle("Proto-Magpy")


def main():
    app = QApplication(sys.argv)

    main = ProtoMagpy()
    main.show()

    sys.exit(app.exec())

if __name__ == '__main__':
    main()