from PyQt5.QtWidgets import QPlainTextEdit, QHBoxLayout, QWidget, QGridLayout, QLabel, QPushButton, QTableWidget, QTableWidgetItem


class OneDimView(QWidget):


    def __init__(self):
        ''' Widget containing the entire 2D Mode view. '''
        super().__init__()

        self.grid = QGridLayout()

        self.setLayout(self.grid)


        self.define_widgets()
        self.set_widget_actions()



    def define_widgets(self):
        ''' Define widgets such as buttons. This must be done before setting widget actions.
        Otherwise a widget action might try to modify a widget that is not defined yet.'''

        # add empty label as spacer after buttons
        # this has some side effects (i suspect) :
        # + when adding the Buttons20, we really mean for it to span from grid position (3,1) to (3,2)
        # but to create the correct visual effect it must span also over the invisible spacder column,
        # Thus from (3,1) to (3,3).
        self.grid.addWidget(QLabel(), 10,10)
        self.load_data_button = QPushButton()
        self.load_data_button.setText("Load Data File")
        self.load_data_button.setMaximumWidth(200)
        self.grid.addWidget(self.load_data_button, 0, 0)


        self.one_d_text = OneDText()
        self.grid.addWidget(self.one_d_text, 1,0)


        self.one_d_table = OneDTable()
        self.grid.addWidget(self.one_d_table,0,1, 4,1)


        self.one_d_visualize = OneDVisualize()
        self.grid.addWidget(self.one_d_visualize,0,2,2,2)

        self.buttons20 = Buttons20()
        self.grid.addWidget(self.buttons20, 2,0)

        self.buttons30 = Buttons30()
        self.grid.addWidget(self.buttons30, 3,0)

        self.buttons32 = Buttons32()
        self.grid.addWidget(self.buttons32,3,2)

    def set_widget_actions(self):
        pass




class OneDText(QPlainTextEdit):
    def __init__(self):
        super().__init__()
        self.setMinimumSize(200,200)
        self.setPlainText("List of Files:\n+ File 1\n+ File 2")



class OneDTable(QTableWidget):
    def __init__(self):
        super().__init__()

        self.setSortingEnabled(True)

        self.setRowCount(4)
        self.setColumnCount(4)

        self.setMinimumSize(300,200)

        self.setHorizontalHeaderLabels({'h', 'k', 'l'})







class Buttons20(QWidget):

    def __init__(self):
        super().__init__()
        self.hbox = QHBoxLayout()
        self.setLayout(self.hbox)
        self.searchButton = QPushButton('Search')
        self.addButton = QPushButton('Add')
        self.substractButton = QPushButton('Substract')
        self.hbox.addWidget(self.searchButton)
        self.hbox.addWidget(self.addButton)
        self.hbox.addWidget(self.substractButton)




class Buttons30(QWidget):
    def __init__(self):
        super().__init__()
        self.hbox = QHBoxLayout()
        self.setLayout(self.hbox)


        self.integrateButton = QPushButton('Integrate')
        self.lorentzButton = QPushButton('Lorentz')
        self.absorptionButton = QPushButton('Absorption')

        self.hbox.addWidget(self.integrateButton)
        self.hbox.addWidget(self.lorentzButton)
        self.hbox.addWidget(self.absorptionButton)



class Buttons32(QWidget):
    def __init__(self):
        ''' Named after its position in the containing grid: row 3, column 2.'''
        super().__init__()
        self.grid= QGridLayout()
        self.setLayout(self.grid)
        self.saveButton = QPushButton('Save')
        self.grid.addWidget(self.saveButton,0,0)
        self.visualizeButton = QPushButton('Visualize in 2D')
        self.grid.addWidget(self.visualizeButton, 0,1)



class OneDVisualize(QPlainTextEdit):
    def __init__(self):
        super().__init__()
        self.setMinimumSize(200,200)
        self.setPlainText('Placeholder\nfor OneDVisualize().')