Source code for lib_openmolar.common.qt4.printing.printed_form
#! /usr/bin/env python
# -*- coding: utf-8 -*-
###############################################################################
## ##
## Copyright 2011, Neil Wallace <rowinggolfer@googlemail.com> ##
## ##
## This program is free software: you can redistribute it and/or modify ##
## it under the terms of the GNU General Public License as published by ##
## the Free Software Foundation, either version 3 of the License, or ##
## (at your option) any later version. ##
## ##
## This program is distributed in the hope that it will be useful, ##
## but WITHOUT ANY WARRANTY; without even the implied warranty of ##
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ##
## GNU General Public License for more details. ##
## ##
## You should have received a copy of the GNU General Public License ##
## along with this program. If not, see <http://www.gnu.org/licenses/>. ##
## ##
###############################################################################
'''
Provides a Class for printing on an A4 Sheet
'''
from PyQt4 import QtCore, QtGui
[docs]class PrintedForm(object):
'''
a class to set up and print an a4 form
'''
testing_mode = False
print_background = False
BACKGROUND_IMAGE = ""
rects = {}
off_set = QtCore.QPoint(0,0)
[docs] def __init__(self):
self.printer = QtGui.QPrinter()
self.printer.setPageSize(QtGui.QPrinter.A4)
self.printer.setPaperSource(QtGui.QPrinter.Middle) #set bin 2
[docs] def setOffset(self, x, y):
'''
offsets all printing by x,y
'''
self.off_set = QtCore.QPointF(x,y)
[docs] def set_skip_dialog(self, skip=True):
'''
call this function to skip a dialog box when printing
'''
self.skip_dialog = skip
[docs] def controlled_print(self):
'''
raise a dialog before printing
'''
dialog = QtGui.QPrintDialog(self.printer)
if dialog.exec_():
return self.print_()
[docs] def print_(self, painter=None):
'''
print the background and any rects if in testing_mode
note - this functions return the active painter so that classes which
inherit from PrintedForm can finalise the printing.
'''
if painter is None:
painter = QtGui.QPainter(self.printer)
if self.print_background:
painter.save()
painter.translate(
-self.printer.pageRect().x(),
-self.printer.pageRect().y()
)
pm = QtGui.QPixmap(self.BACKGROUND_IMAGE)
if pm.isNull():
print "unable to load pixmap from '%s'"% self.BACKGROUND_IMAGE
painter.drawPixmap(self.printer.paperRect(), pm, pm.rect())
painter.restore()
painter.translate(self.off_set)
if self.testing_mode:
painter.save()
painter.setPen(QtGui.QPen(QtCore.Qt.black,1))
for rect in self.rects.values():
painter.drawRect(rect)
painter.restore()
return painter
if __name__ == "__main__":
app = QtGui.QApplication([])
form = PrintedForm()
form.controlled_print()
