#!/usr/bin/env python

#############################################################################

##

## Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

## All rights reserved.

## Contact: Nokia Corporation (qt-info@nokia.com)

##

## This file is part of the test suite of the Qt Toolkit.

##

## $QT_BEGIN_LICENSE:LGPL$

## No Commercial Usage

## This file contains pre-release code and may not be distributed.

## You may use this file in accordance with the terms and conditions

## contained in the Technology Preview License Agreement accompanying

## this package.

##

## GNU Lesser General Public License Usage

## Alternatively, this file may be used under the terms of the GNU Lesser

## General Public License version 2.1 as published by the Free Software

## Foundation and appearing in the file LICENSE.LGPL included in the

## packaging of this file.  Please review the following information to

## ensure the GNU Lesser General Public License version 2.1 requirements

## will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

##

## In addition, as a special exception, Nokia gives you certain additional

## rights.  These rights are described in the Nokia Qt LGPL Exception

## version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

##

## If you have questions regarding the use of this file, please contact

## Nokia at qt-info@nokia.com.

##

##

##

##

##

##

##

##

## $QT_END_LICENSE$

##

#############################################################################

import sys

from PyQt4.QtCore import *

from PyQt4.QtGui import *

from PyQt4.QtSvg import QSvgGenerator

if __name__ == "__main__":

    app = QApplication(sys.argv)

    #device = QSvgGenerator()

    #device.setFileName("qpen-dashpattern.svg")

    #device.setSize(QSize(216, 144))

    #device.setResolution(72)

    device = QImage(192, 144, QImage.Format_ARGB32)

    device.fill(qRgba(0, 0, 0, 0))

    #resolution = device.resolution() # dpi

    #dpp = resolution / 72.0

    p = QPainter()

    p.begin(device)

    width = 8

    pen = QPen()

    pen.setWidth(width)

    pen.setDashPattern([4, 2])

    pen.setCapStyle(Qt.FlatCap)

    faded_pen = QPen()

    faded_pen.setWidth(width)

    faded_pen.setDashPattern([4, 2])

    faded_pen.setColor(QColor(160, 160, 160))

    faded_pen.setCapStyle(Qt.FlatCap)

    font = QFont("Monospace")

    font.setPointSize(12)

    p.setFont(font)

    p.setBrush(QColor(160, 0, 0))

    for x in range(-6, 9):

        if x % 4 == 0:

            length = 6

        else:

            length = 2

        p.drawLine(64 + x * width, 4, 64 + x * width, 4 + length)

        p.drawLine(64 + x * width, 136, 64 + x * width, 136 - length)

    offsets = (0, 2, 3.5, 4, 5, 6)

    for i in range(len(offsets)):

        offset = offsets[i]

        pen.setDashOffset(offset)

        p.setPen(faded_pen)

        p.drawLine(64 - offset * width, 20 + (i * 20), 64, 20 + (i * 20))

        p.setPen(pen)

        p.drawLine(64, 20 + (i * 20), 128, 20 + (i * 20))

        p.drawText(150, 25 + (i * 20), str(offset))

    p.end()

    device.save("qpen-dashpattern.png")

    sys.exit()