Source

JythonBook / src / chapter17 / twitfriends.py

# -*- coding: utf-8 -*-
import twitter
import re

from javax.swing import (BoxLayout, ImageIcon, JButton, JFrame, JPanel,
        JPasswordField, JLabel, JTextArea, JTextField, JScrollPane,
        SwingConstants, WindowConstants)
from java.awt import Component, GridLayout
from java.net import URL
from java.lang import Runnable

class JyTwitter(object):
    def __init__(self):
        self.frame = JFrame("Jython Twitter")
        self.frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE)
 
        self.loginPanel = JPanel(GridLayout(0,2))
        self.frame.add(self.loginPanel)

        self.usernameField = JTextField('',15)
        self.loginPanel.add(JLabel("username:", SwingConstants.RIGHT))
        self.loginPanel.add(self.usernameField)

        self.passwordField = JPasswordField('', 15)
        self.loginPanel.add(JLabel("password:", SwingConstants.RIGHT))
        self.loginPanel.add(self.passwordField)

        self.loginButton = JButton('Log in',actionPerformed=self.login)
        self.loginPanel.add(self.loginButton)

        self.message = JLabel("Please Log in")
        self.loginPanel.add(self.message)

        self.frame.pack()
        self.frame.visible = True

    def login(self,event):
        self.message.text = "Attempting to Log in..."
        self.frame.show()
        username = self.usernameField.text
        try:
            self.api = twitter.Api(username, self.passwordField.text)
            self.timeline(username)
            self.loginPanel.visible = False
            self.message.text = "Logged in"
        except:
            self.message.text = "Log in failed."
            raise
        self.frame.size = 400,800
        self.frame.show()

    def timeline(self, username):
        timeline = self.api.GetFriendsTimeline(username)
        self.resultPanel = JPanel()
        self.resultPanel.layout = BoxLayout(self.resultPanel, BoxLayout.Y_AXIS)
        for s in timeline:
            self.showTweet(s)

        scrollpane = JScrollPane(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
                                 JScrollPane.HORIZONTAL_SCROLLBAR_NEVER)
        scrollpane.preferredSize = 400, 800
        scrollpane.viewport.view = self.resultPanel

        self.frame.add(scrollpane)

    def showTweet(self, status):
        user = status.user
        p = JPanel()

        # image grabbing seems very expensive, good place for a callback?
        p.add(JLabel(ImageIcon(URL(user.profile_image_url))))

        p.add(JTextArea(text = status.text,
                        editable = False,
                        wrapStyleWord = True,
                        lineWrap = True,
                        alignmentX = Component.LEFT_ALIGNMENT,
                        size = (300, 1)
             ))
        self.resultPanel.add(p)

if __name__ == '__main__':
    JyTwitter()