source: trunk/examples/draganddrop/fridgemagnets/draglabel.cpp@ 846

Last change on this file since 846 was 846, checked in by Dmitry A. Kuminov, 14 years ago

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

File size: 3.3 KB
Line 
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 examples of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:BSD$
10** You may use this file under the terms of the BSD license as follows:
11**
12** "Redistribution and use in source and binary forms, with or without
13** modification, are permitted provided that the following conditions are
14** met:
15** * Redistributions of source code must retain the above copyright
16** notice, this list of conditions and the following disclaimer.
17** * Redistributions in binary form must reproduce the above copyright
18** notice, this list of conditions and the following disclaimer in
19** the documentation and/or other materials provided with the
20** distribution.
21** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
22** the names of its contributors may be used to endorse or promote
23** products derived from this software without specific prior written
24** permission.
25**
26** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
37** $QT_END_LICENSE$
38**
39****************************************************************************/
40
41#include <QtGui>
42
43#include "draglabel.h"
44
45//! [0]
46DragLabel::DragLabel(const QString &text, QWidget *parent)
47 : QLabel(parent)
48{
49 QFontMetrics metric(font());
50 QSize size = metric.size(Qt::TextSingleLine, text);
51
52 QImage image(size.width() + 12, size.height() + 12,
53 QImage::Format_ARGB32_Premultiplied);
54 image.fill(qRgba(0, 0, 0, 0));
55
56 QFont font;
57 font.setStyleStrategy(QFont::ForceOutline);
58//! [0]
59
60//! [1]
61 QLinearGradient gradient(0, 0, 0, image.height()-1);
62 gradient.setColorAt(0.0, Qt::white);
63 gradient.setColorAt(0.2, QColor(200, 200, 255));
64 gradient.setColorAt(0.8, QColor(200, 200, 255));
65 gradient.setColorAt(1.0, QColor(127, 127, 200));
66
67 QPainter painter;
68 painter.begin(&image);
69 painter.setRenderHint(QPainter::Antialiasing);
70 painter.setBrush(gradient);
71 painter.drawRoundedRect(QRectF(0.5, 0.5, image.width()-1, image.height()-1),
72 25, 25, Qt::RelativeSize);
73
74 painter.setFont(font);
75 painter.setBrush(Qt::black);
76 painter.drawText(QRect(QPoint(6, 6), size), Qt::AlignCenter, text);
77 painter.end();
78//! [1]
79
80//! [2]
81 setPixmap(QPixmap::fromImage(image));
82 m_labelText = text;
83}
84//! [2]
85
86QString DragLabel::labelText() const
87{
88 return m_labelText;
89}
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