source: trunk/demos/qtdemo/letteritem.cpp@ 871

Last change on this file since 871 was 846, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

File size: 3.4 KB
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1/****************************************************************************
2**
3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the demonstration applications of the Qt Toolkit.
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.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include <cmath>
43#include "letteritem.h"
44#include "colors.h"
45
46LetterItem::LetterItem(char letter, QGraphicsScene *scene, QGraphicsItem *parent) : DemoItem(scene, parent), letter(letter)
47{
48 useSharedImage(QString(__FILE__) + letter);
49}
50
51LetterItem::~LetterItem()
52{
53}
54
55QImage *LetterItem::createImage(const QMatrix &matrix) const
56{
57 QRect scaledRect = matrix.mapRect(QRect(0, 0, 25, 25));
58 QImage *image = new QImage(scaledRect.width(), scaledRect.height(), QImage::Format_ARGB32_Premultiplied);
59 image->fill(0);
60 QPainter painter(image);
61 painter.scale(matrix.m11(), matrix.m22());