#!/usr/bin/env python

"""
This is more of a manuall technique to print a widget
"""
from PyQt4.QtGui import *
from PyQt4.QtCore import *
#!/usr/bin/env python

from PyQt4 import QtWebKit
import sys

class testWidget(QWidget):
	"""this class loads an image and then lets you print it to a file, or print preview, the print preview will give you all of you currently configured print options.
	First it loads a file creates a label then it sets a regular printer, associates that print to a buttonA.  Next it sets the print preview to a buttonB."""
	def __init__(self,ifile, parent=None):
		QWidget.__init__(self,parent)
		
		self.myimage = QPixmap(ifile)
		self.setLayout(QHBoxLayout())
		if self.myimage.isNull():
			self.mylabel = QLabel('Missing Image',self)
		else:
			self.mylabel = QLabel(self)
			self.mylabel.setPixmap(self.myimage)
		self.layout().addWidget(self.mylabel)
		
		self.myprinter = QPrinter()
		self.myprinter.setOutputFormat(QPrinter.PdfFormat);
		self.myprinter.setOutputFileName("nonwritable.pdf");
		self.buttonA = QPushButton("print",self)
		self.layout().addWidget(self.buttonA)
		self.connect(self.buttonA,SIGNAL("clicked ()"), self.nopreview)
		
		self.preview = QPrintPreviewDialog()
		self.connect(self.preview,SIGNAL("paintRequested (QPrinter *)"),self.what)
		self.buttonB = QPushButton("preview",self)
		self.layout().addWidget(self.buttonB)
		self.connect(self.buttonB,SIGNAL("clicked ()"), self.ppreview)
		
	def what(self,other):
		painter = QPainter()
		painter.begin(other)
		self.mylabel.render(painter)
		painter.end()
	def ppreview(self):
		print "working"
		self.preview.exec_()
	def nopreview(self):
		print "working"
		self.what(self.myprinter)

if __name__=="__main__":
	app = QApplication(sys.argv)
	
	fileName = QFileDialog.getOpenFileName(None,
       "Open Image", ".", "Image Files (*.png *.jpg *.bmp)")
	widget = testWidget(fileName)
	widget.show()
	sys.exit(app.exec_())