# -*- coding: utf-8 -*-
import sys
 
from PyQt4 import QtCore, QtGui, QtWebKit
from httpWidget import Ui_HttpWidget
 
class httpWidget(QtGui.QWidget):
	def __init__(self, parent=None):
		super(httpWidget, self).__init__(parent)
		self.ui = Ui_HttpWidget()
		self.ui.setupUi(self)
 
		# set margins
		l = self.layout()
		l.setMargin(0)
		self.ui.horizontalLayout.setMargin(5)
 
		# set the default
		url = 'http://localhost:8080'
		self.ui.url.setText(url)
 
		# load page
		self.ui.webView.setUrl(QtCore.QUrl(url))
 
		# history buttons:
		self.ui.back.setEnabled(False)
		self.ui.next.setEnabled(False)
 
		QtCore.QObject.connect(self.ui.back,QtCore.SIGNAL("clicked()"), self.back)
		QtCore.QObject.connect(self.ui.next,QtCore.SIGNAL("clicked()"), self.next)
		QtCore.QObject.connect(self.ui.url,QtCore.SIGNAL("returnPressed()"), self.url_changed)
		QtCore.QObject.connect(self.ui.webView,QtCore.SIGNAL("linkClicked (const QUrl&)"), self.link_clicked)
		QtCore.QObject.connect(self.ui.webView,QtCore.SIGNAL("urlChanged (const QUrl&)"), self.link_clicked)
		QtCore.QObject.connect(self.ui.webView,QtCore.SIGNAL("loadProgress (int)"), self.load_progress)
		QtCore.QObject.connect(self.ui.webView,QtCore.SIGNAL("titleChanged (const QString&)"), self.title_changed)
		QtCore.QObject.connect(self.ui.reload,QtCore.SIGNAL("clicked()"), self.reload_page)
		QtCore.QObject.connect(self.ui.stop,QtCore.SIGNAL("clicked()"), self.stop_page)
 
		QtCore.QMetaObject.connectSlotsByName(self)
 
	def url_changed(self):
		"""
		Url have been changed by user
		"""
		page = self.ui.webView.page()
		history = page.history()
		if history.canGoBack():
			self.ui.back.setEnabled(True)
		else:
			self.ui.back.setEnabled(False)
		if history.canGoForward():
			self.ui.next.setEnabled(True)
		else:
			self.ui.next.setEnabled(False)
 
		url = self.ui.url.text()
		self.ui.webView.setUrl(QtCore.QUrl(url))
 
	def stop_page(self):
		"""
		Stop loading the page
		"""
		self.ui.webView.stop()
 
	def title_changed(self, title):
		"""
		Web page title changed - change the tab name
		"""
		self.setWindowTitle(title)
 
	def reload_page(self):
		"""
		Reload the web page
		"""
		self.ui.webView.setUrl(QtCore.QUrl(self.ui.url.text()))
 
	def link_clicked(self, url):
		"""
		Update the URL if a link on a web page is clicked
		"""
		page = self.ui.webView.page()
		history = page.history()
		if history.canGoBack():
			self.ui.back.setEnabled(True)
		else:
			self.ui.back.setEnabled(False)
		if history.canGoForward():
			self.ui.next.setEnabled(True)
		else:
			self.ui.next.setEnabled(False)
 
		self.ui.url.setText(url.toString())
 
	def load_progress(self, load):
		"""
		Page load progress
		"""
		if load == 100:
			self.ui.stop.setEnabled(False)
		else:
			self.ui.stop.setEnabled(True)
 
	def back(self):
		"""
		Back button clicked, go one page back
		"""
		page = self.ui.webView.page()
		history = page.history()
		history.back()
		if history.canGoBack():
			self.ui.back.setEnabled(True)
		else:
			self.ui.back.setEnabled(False)
 
	def next(self):
		"""
		Next button clicked, go to next page
		"""
		page = self.ui.webView.page()
		history = page.history()
		history.forward()
		if history.canGoForward():
			self.ui.next.setEnabled(True)
		else:
			self.ui.next.setEnabled(False)
 
if __name__ == "__main__":
	app = QtGui.QApplication(sys.argv)
	myapp = httpWidget()
	myapp.show()	
	sys.exit(app.exec_())	
 

'''
Created on 01/12/2010
 
@author: nicolas
'''
 
import sys
 
def es_par(numero):
    return (numero % 2 == 0)
 
def dibujar_rombo(lineas):
    lineas = int(lineas)
    if es_par(lineas):
        print 'El numero de lineas es par, no puedo escribir un rombo perfecto'
    else:
        espacios = int(lineas / 2)        
        disminuyo = False
        cantidad = 1
        str = ''
        for i in xrange(lineas):
            for n in xrange(espacios):
                str += ' '                
            for n in xrange(cantidad):
                str += '*'
            print str
            if len(str) == lineas:
                disminuyo = True
            if disminuyo:
                cantidad -= 2
                espacios += 1
            else:
                cantidad += 2
                espacios -= 1
            str = ''
 
if __name__ == '__main__':
    dibujar_rombo(sys.argv[1])
    #dibujar_rombo(9)