1#############################################################################
2##
3## Copyright (C) 2013 Riverbank Computing Limited.
4## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
5## All rights reserved.
6##
7## This file is part of the examples of PyQt.
8##
9## $QT_BEGIN_LICENSE:LGPL$
10## Commercial Usage
11## Licensees holding valid Qt Commercial licenses may use this file in
12## accordance with the Qt Commercial License Agreement provided with the
13## Software or, alternatively, in accordance with the terms contained in
14## a written agreement between you and Nokia.
15##
16## GNU Lesser General Public License Usage
17## Alternatively, this file may be used under the terms of the GNU Lesser
18## General Public License version 2.1 as published by the Free Software
19## Foundation and appearing in the file LICENSE.LGPL included in the
20## packaging of this file.  Please review the following information to
21## ensure the GNU Lesser General Public License version 2.1 requirements
22## will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23##
24## In addition, as a special exception, Nokia gives you certain additional
25## rights.  These rights are described in the Nokia Qt LGPL Exception
26## version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27##
28## GNU General Public License Usage
29## Alternatively, this file may be used under the terms of the GNU
30## General Public License version 3.0 as published by the Free Software
31## Foundation and appearing in the file LICENSE.GPL included in the
32## packaging of this file.  Please review the following information to
33## ensure the GNU General Public License version 3.0 requirements will be
34## met: http://www.gnu.org/copyleft/gpl.html.
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36## If you have questions regarding the use of this file, please contact
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38## $QT_END_LICENSE$
39##
40#############################################################################
41
42
43from PyQt5.QtCore import QRect
44from PyQt5.QtGui import QColor, QImage, QPainter, QPen
45
46from colors import Colors
47from demoitem import DemoItem
48
49
50class ScanItem(DemoItem):
51    ITEM_WIDTH = 16
52    ITEM_HEIGHT = 16
53
54    def __init__(self, parent=None):
55        super(ScanItem, self).__init__(parent)
56
57        self.useSharedImage(__file__)
58
59    def createImage(self, transform):
60        scaledRect = transform.mapRect(QRect(0, 0, ScanItem.ITEM_WIDTH, ScanItem.ITEM_HEIGHT))
61        image = QImage(scaledRect.width(), scaledRect.height(),
62                QImage.Format_ARGB32_Premultiplied)
63        image.fill(QColor(0, 0, 0, 0).rgba())
64        painter = QPainter(image)
65        painter.setRenderHint(QPainter.Antialiasing)
66
67        if Colors.useEightBitPalette:
68            painter.setPen(QPen(QColor(100, 100, 100), 2))
69            painter.setBrush(QColor(206, 246, 117))
70            painter.drawEllipse(1, 1, scaledRect.width() - 2,
71                    scaledRect.height() - 2)
72        else:
73            painter.setPen(QPen(QColor(0, 0, 0, 15), 1))
74            painter.setBrush(QColor(0, 0, 0, 15))
75            painter.drawEllipse(1, 1, scaledRect.width() - 2,
76                    scaledRect.height() - 2)
77
78        return image
79