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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2010 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 QtDeclarative module of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #include "private/qdeclarativetranslate_p.h" |
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43 #include <private/qgraphicstransform_p.h> |
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44 #include <QDebug> |
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45 #include <QtCore/qmath.h> |
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46 |
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47 QT_BEGIN_NAMESPACE |
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48 |
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49 class QDeclarativeTranslatePrivate : public QGraphicsTransformPrivate |
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50 { |
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51 public: |
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52 QDeclarativeTranslatePrivate() |
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53 : x(0), y(0) {} |
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54 qreal x; |
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55 qreal y; |
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56 }; |
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57 |
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58 /*! |
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59 Constructs an empty QDeclarativeTranslate object with the given \a parent. |
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60 */ |
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61 QDeclarativeTranslate::QDeclarativeTranslate(QObject *parent) |
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62 : QGraphicsTransform(*new QDeclarativeTranslatePrivate, parent) |
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63 { |
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64 } |
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65 |
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66 /*! |
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67 Destroys the graphics scale. |
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68 */ |
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69 QDeclarativeTranslate::~QDeclarativeTranslate() |
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70 { |
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71 } |
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72 |
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73 /*! |
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74 \property QDeclarativeTranslate::x |
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75 \brief the horizontal translation. |
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76 |
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77 The translation can be any real number; the default value is 0.0. |
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78 |
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79 \sa y |
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80 */ |
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81 qreal QDeclarativeTranslate::x() const |
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82 { |
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83 Q_D(const QDeclarativeTranslate); |
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84 return d->x; |
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85 } |
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86 void QDeclarativeTranslate::setX(qreal x) |
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87 { |
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88 Q_D(QDeclarativeTranslate); |
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89 if (d->x == x) |
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90 return; |
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91 d->x = x; |
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92 update(); |
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93 emit positionChanged(); |
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94 } |
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95 |
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96 /*! |
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97 \property QDeclarativeTranslate::y |
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98 \brief the vertical translation. |
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99 |
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100 The translation can be any real number; the default value is 0.0. |
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101 |
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102 \sa x |
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103 */ |
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104 qreal QDeclarativeTranslate::y() const |
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105 { |
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106 Q_D(const QDeclarativeTranslate); |
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107 return d->y; |
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108 } |
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109 void QDeclarativeTranslate::setY(qreal y) |
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110 { |
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111 Q_D(QDeclarativeTranslate); |
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112 if (d->y == y) |
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113 return; |
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114 d->y = y; |
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115 update(); |
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116 emit positionChanged(); |
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117 } |
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118 |
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119 /*! |
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120 \reimp |
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121 */ |
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122 void QDeclarativeTranslate::applyTo(QMatrix4x4 *matrix) const |
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123 { |
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124 Q_D(const QDeclarativeTranslate); |
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125 matrix->translate(d->x, d->y, 0); |
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126 } |
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127 |
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128 /*! |
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129 \fn QDeclarativeTranslate::positionChanged() |
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130 |
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131 QDeclarativeTranslate emits this signal when its position changes. |
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132 |
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133 \sa QDeclarativeTranslate::x, QDeclarativeTranslate::y |
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134 */ |
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135 |
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136 QT_END_NAMESPACE |