[2] | 1 | /****************************************************************************
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| 2 | **
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[846] | 3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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[561] | 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation ([email protected])
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[2] | 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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[846] | 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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[2] | 11 | **
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[846] | 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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[2] | 25 | **
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[846] | 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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[2] | 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 "stareditor.h"
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| 44 | #include "starrating.h"
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| 45 |
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| 46 | //! [0]
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| 47 | StarEditor::StarEditor(QWidget *parent)
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| 48 | : QWidget(parent)
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| 49 | {
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| 50 | setMouseTracking(true);
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| 51 | setAutoFillBackground(true);
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| 52 | }
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| 53 | //! [0]
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| 54 |
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| 55 | QSize StarEditor::sizeHint() const
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| 56 | {
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| 57 | return myStarRating.sizeHint();
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| 58 | }
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| 59 |
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| 60 | //! [1]
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| 61 | void StarEditor::paintEvent(QPaintEvent *)
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| 62 | {
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| 63 | QPainter painter(this);
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| 64 | myStarRating.paint(&painter, rect(), this->palette(),
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| 65 | StarRating::Editable);
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| 66 | }
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| 67 | //! [1]
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| 68 |
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| 69 | //! [2]
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| 70 | void StarEditor::mouseMoveEvent(QMouseEvent *event)
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| 71 | {
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| 72 | int star = starAtPosition(event->x());
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| 73 |
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| 74 | if (star != myStarRating.starCount() && star != -1) {
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| 75 | myStarRating.setStarCount(star);
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| 76 | update();
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| 77 | }
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| 78 | }
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| 79 | //! [2]
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| 80 |
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| 81 | //! [3]
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| 82 | void StarEditor::mouseReleaseEvent(QMouseEvent * /* event */)
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| 83 | {
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| 84 | emit editingFinished();
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| 85 | }
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| 86 | //! [3]
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| 87 |
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| 88 | //! [4]
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| 89 | int StarEditor::starAtPosition(int x)
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| 90 | {
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| 91 | int star = (x / (myStarRating.sizeHint().width()
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| 92 | / myStarRating.maxStarCount())) + 1;
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| 93 | if (star <= 0 || star > myStarRating.maxStarCount())
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| 94 | return -1;
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| 95 |
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| 96 | return star;
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| 97 | }
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| 98 | //! [4]
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