| 1 | /**************************************************************************** | 
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| 2 | ** | 
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| 3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | 
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| 4 | ** All rights reserved. | 
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| 5 | ** Contact: Nokia Corporation (qt-info@nokia.com) | 
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| 6 | ** | 
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| 7 | ** This file is part of the examples of the Qt Toolkit. | 
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| 8 | ** | 
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| 9 | ** $QT_BEGIN_LICENSE:BSD$ | 
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| 10 | ** You may use this file under the terms of the BSD license as follows: | 
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| 11 | ** | 
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| 12 | ** "Redistribution and use in source and binary forms, with or without | 
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| 13 | ** modification, are permitted provided that the following conditions are | 
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| 14 | ** met: | 
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| 15 | **   * Redistributions of source code must retain the above copyright | 
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| 16 | **     notice, this list of conditions and the following disclaimer. | 
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| 17 | **   * Redistributions in binary form must reproduce the above copyright | 
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| 18 | **     notice, this list of conditions and the following disclaimer in | 
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| 19 | **     the documentation and/or other materials provided with the | 
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| 20 | **     distribution. | 
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| 21 | **   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor | 
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| 22 | **     the names of its contributors may be used to endorse or promote | 
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| 23 | **     products derived from this software without specific prior written | 
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| 24 | **     permission. | 
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| 25 | ** | 
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| 26 | ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 
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| 27 | ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 
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| 28 | ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 
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| 29 | ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 
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| 30 | ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 
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| 31 | ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 
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| 32 | ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 
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| 33 | ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 
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| 34 | ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 
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| 35 | ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 
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| 36 | ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." | 
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| 37 | ** $QT_END_LICENSE$ | 
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| 38 | ** | 
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| 39 | ****************************************************************************/ | 
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| 40 |  | 
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| 41 | #include <QtGui> | 
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| 42 |  | 
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| 43 | #include "draglabel.h" | 
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| 44 |  | 
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| 45 | //! [0] | 
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| 46 | DragLabel::DragLabel(const QString &text, QWidget *parent) | 
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| 47 | : QLabel(parent) | 
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| 48 | { | 
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| 49 | QFontMetrics metric(font()); | 
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| 50 | QSize size = metric.size(Qt::TextSingleLine, text); | 
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| 51 |  | 
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| 52 | QImage image(size.width() + 12, size.height() + 12, | 
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| 53 | QImage::Format_ARGB32_Premultiplied); | 
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| 54 | image.fill(qRgba(0, 0, 0, 0)); | 
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| 55 |  | 
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| 56 | QFont font; | 
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| 57 | font.setStyleStrategy(QFont::ForceOutline); | 
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| 58 | //! [0] | 
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| 59 |  | 
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| 60 | //! [1] | 
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| 61 | QLinearGradient gradient(0, 0, 0, image.height()-1); | 
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| 62 | gradient.setColorAt(0.0, Qt::white); | 
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| 63 | gradient.setColorAt(0.2, QColor(200, 200, 255)); | 
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| 64 | gradient.setColorAt(0.8, QColor(200, 200, 255)); | 
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| 65 | gradient.setColorAt(1.0, QColor(127, 127, 200)); | 
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| 66 |  | 
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| 67 | QPainter painter; | 
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| 68 | painter.begin(&image); | 
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| 69 | painter.setRenderHint(QPainter::Antialiasing); | 
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| 70 | painter.setBrush(gradient); | 
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| 71 | painter.drawRoundedRect(QRectF(0.5, 0.5, image.width()-1, image.height()-1), | 
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| 72 | 25, 25, Qt::RelativeSize); | 
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| 73 |  | 
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| 74 | painter.setFont(font); | 
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| 75 | painter.setBrush(Qt::black); | 
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| 76 | painter.drawText(QRect(QPoint(6, 6), size), Qt::AlignCenter, text); | 
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| 77 | painter.end(); | 
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| 78 | //! [1] | 
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| 79 |  | 
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| 80 | //! [2] | 
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| 81 | setPixmap(QPixmap::fromImage(image)); | 
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| 82 | m_labelText = text; | 
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| 83 | } | 
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| 84 | //! [2] | 
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| 85 |  | 
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| 86 | QString DragLabel::labelText() const | 
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| 87 | { | 
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| 88 | return m_labelText; | 
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| 89 | } | 
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