Demo.applet.deprecated.ListDemo.py Maven / Gradle / Ivy

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"""A rough translation of an example from the Java Tutorial
http://java.sun.com/docs/books/tutorial/

This example shows how to use List
"""

from java import applet, awt
from java.awt.event import ItemEvent
from pawt import GridBag


class ListDemo(applet.Applet):
    def fillList(self, list, names):
        list.actionPerformed = self.action
        list.itemStateChanged = self.change

        for name in names:
            list.add(name)

    def init(self):
        self.spanish = awt.List(4, 1)
        self.fillList(self.spanish, ['uno', 'dos', 'tres', 'cuatro',
                                     'cinco', 'seis', 'siete'])
        self.italian = awt.List()
        self.fillList(self.italian, ['uno', 'due', 'tre', 'quattro',
                                     'cinque', 'sei', 'sette'])

        self.output = awt.TextArea(10, 40, editable=0)

        bag = GridBag(self)
        bag.add(self.output,
                fill='BOTH', weightx=1.0, weighty=1.0,
                gridheight=2)

        bag.addRow(self.spanish, fill='VERTICAL')
        bag.addRow(self.italian, fill='VERTICAL')

        self.language = {self.spanish: 'Spanish', self.italian: 'Italian'}

    def action(self, e):
        list = e.source
        text = 'Action event occurred on "%s" in %s.\n'
        self.output.append(text % (list.selectedItem, self.language[list]))

    def change(self, e):
        list = e.source
        if e.stateChange == ItemEvent.SELECTED:
            select = 'Select'
        else:
            select = 'Deselect'

        text = '%s event occurred on item #%d (%s) in %s.\n'
        params = (select, e.item, list.getItem(e.item), self.language[list])
        self.output.append(text % params)


if __name__ == '__main__':
    import pawt
    pawt.test(ListDemo())