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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 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 QtGui 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 #ifndef QABSTRACTSLIDER_P_H |
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43 #define QABSTRACTSLIDER_P_H |
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44 |
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45 // |
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46 // W A R N I N G |
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47 // ------------- |
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48 // |
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49 // This file is not part of the Qt API. It exists purely as an |
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50 // implementation detail. This header file may change from version to |
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51 // version without notice, or even be removed. |
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52 // |
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53 // We mean it. |
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54 // |
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55 |
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56 #include "QtCore/qbasictimer.h" |
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57 #include "private/qwidget_p.h" |
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58 #include "qstyle.h" |
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59 |
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60 QT_BEGIN_NAMESPACE |
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61 |
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62 class QAbstractSliderPrivate : public QWidgetPrivate |
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63 { |
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64 Q_DECLARE_PUBLIC(QAbstractSlider) |
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65 public: |
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66 QAbstractSliderPrivate(); |
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67 ~QAbstractSliderPrivate(); |
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68 |
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69 void setSteps(int single, int page); |
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70 |
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71 int minimum, maximum, singleStep, pageStep, value, position, pressValue; |
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72 float offset_accumulated; |
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73 uint tracking : 1; |
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74 uint blocktracking :1; |
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75 uint pressed : 1; |
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76 uint invertedAppearance : 1; |
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77 uint invertedControls : 1; |
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78 Qt::Orientation orientation; |
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79 |
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80 QBasicTimer repeatActionTimer; |
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81 int repeatActionTime; |
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82 QAbstractSlider::SliderAction repeatAction; |
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83 |
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84 #ifdef QT_KEYPAD_NAVIGATION |
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85 int origValue; |
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86 #endif |
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87 |
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88 inline int bound(int val) const { return qMax(minimum, qMin(maximum, val)); } |
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89 inline int overflowSafeAdd(int add) const |
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90 { |
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91 int newValue = value + add; |
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92 if (add > 0 && newValue < value) |
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93 newValue = maximum; |
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94 else if (add < 0 && newValue > value) |
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95 newValue = minimum; |
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96 return newValue; |
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97 } |
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98 inline void setAdjustedSliderPosition(int position) |
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99 { |
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100 Q_Q(QAbstractSlider); |
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101 if (q->style()->styleHint(QStyle::SH_Slider_StopMouseOverSlider, 0, q)) { |
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102 if ((position > pressValue - 2 * pageStep) && (position < pressValue + 2 * pageStep)) { |
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103 repeatAction = QAbstractSlider::SliderNoAction; |
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104 q->setSliderPosition(pressValue); |
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105 return; |
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106 } |
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107 } |
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108 q->triggerAction(repeatAction); |
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109 } |
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110 }; |
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111 |
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112 QT_END_NAMESPACE |
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113 |
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114 #endif // QABSTRACTSLIDER_P_H |