# Adapted from http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/82965

import Tkinter
import tVector     # tVector.py

class TestDisplay:
    def __init__(self, parent, debug=0,):
        self.m_debug = debug
        self.m_parent = parent
        initialList = [
            ("Row1Col1", "Row1Col2", ),
            ("Row2Col1", "Row2Col2", ),
        ]
        self.m_needsRebuild = True
        self.m_layout = None
        self.m_dataGrid = list()
        for i in initialList:
            if self.m_debug > 0:
                print "Adding row:", i
            self.m_dataGrid.append(i)
    #
    # Build the interface:
    def rebuildInterface(self, ):
        if not self.m_needsRebuild:
            return
        col1List = list()
        col2List = list()
        # Here is where we would do the magic with pack:
        #  self.m_parent.forget()
        for first,second in self.m_dataGrid:
            col1List.append(
                tVector.tW(
                    Tkinter.Label, first,
                    text=first, anchor=Tkinter.E,
                )
            )
            col2List.append(
                tVector.tW(
                    Tkinter.Label, first,
                    text=second, anchor=Tkinter.E,
                )
            )
        self.m_layout = tVector.tCol(
            tVector.tRow(
                tVector.tW(Tkinter.Button, 'but2',
                    text="Add row",
                    command=self.addRow,
                ),
                tVector.tW(Tkinter.Entry, 'col1',
                    text="col1",
                ),
                tVector.tW(Tkinter.Entry, 'col2',
                    text="col2",
                ),
            ),
            tVector.tRow(
                tVector.tCol( *col1List ),
                tVector.tCol( *col2List ),
            ),
        )
        self.m_layout.tBuild(self.m_parent)
        self.m_needsRebuild = False
    #
    def addRow(self):
        if self.m_debug > 0:
            print "clicked button2 to add row"
        col1 = self.m_layout.wids["col1"]
        col2 = self.m_layout.wids["col2"]
        newRow = (col1.get(),col2.get(),)
        if self.m_debug > 0:
            print "addRow: ", newRow
        self.m_dataGrid.append(newRow)
        self.m_needsRebuild = True
        self.rebuildInterface()
    #
    def mainloop(self):
        self.rebuildInterface()
        self.m_layout.mainloop()


if __name__ == '__main__':
    root = Tkinter.Tk()
    root.title("Test dynamic")
    app = TestDisplay(root, debug=10)
    app.mainloop()