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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 QABSTRACTSCROLLAREA_P_H |
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43 #define QABSTRACTSCROLLAREA_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 "private/qframe_p.h" |
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57 #include "qabstractscrollarea.h" |
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58 |
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59 QT_BEGIN_NAMESPACE |
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60 |
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61 #ifndef QT_NO_SCROLLAREA |
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62 |
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63 class QScrollBar; |
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64 class QAbstractScrollAreaScrollBarContainer; |
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65 class Q_AUTOTEST_EXPORT QAbstractScrollAreaPrivate: public QFramePrivate |
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66 { |
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67 Q_DECLARE_PUBLIC(QAbstractScrollArea) |
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68 |
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69 public: |
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70 QAbstractScrollAreaPrivate(); |
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71 |
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72 void replaceScrollBar(QScrollBar *scrollBar, Qt::Orientation orientation); |
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73 |
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74 QAbstractScrollAreaScrollBarContainer *scrollBarContainers[Qt::Vertical + 1]; |
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75 QScrollBar *hbar, *vbar; |
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76 Qt::ScrollBarPolicy vbarpolicy, hbarpolicy; |
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77 |
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78 QWidget *viewport; |
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79 QWidget *cornerWidget; |
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80 QRect cornerPaintingRect; |
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81 #ifdef Q_WS_MAC |
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82 QRect reverseCornerPaintingRect; |
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83 #endif |
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84 int left, top, right, bottom; // viewport margin |
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85 |
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86 int xoffset, yoffset; |
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87 |
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88 void init(); |
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89 void layoutChildren(); |
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90 // ### Fix for 4.4, talk to Bjoern E or Girish. |
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91 virtual void scrollBarPolicyChanged(Qt::Orientation, Qt::ScrollBarPolicy) {} |
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92 |
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93 void _q_hslide(int); |
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94 void _q_vslide(int); |
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95 void _q_showOrHideScrollBars(); |
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96 |
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97 virtual QPoint contentsOffset() const; |
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98 |
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99 inline bool viewportEvent(QEvent *event) |
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100 { return q_func()->viewportEvent(event); } |
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101 QScopedPointer<QObject> viewportFilter; |
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102 |
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103 #ifdef Q_WS_WIN |
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104 bool singleFingerPanEnabled; |
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105 void setSingleFingerPanEnabled(bool on = true); |
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106 #endif |
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107 }; |
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108 |
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109 class QAbstractScrollAreaFilter : public QObject |
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110 { |
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111 Q_OBJECT |
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112 public: |
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113 QAbstractScrollAreaFilter(QAbstractScrollAreaPrivate *p) : d(p) |
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114 { setObjectName(QLatin1String("qt_abstractscrollarea_filter")); } |
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115 bool eventFilter(QObject *o, QEvent *e) |
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116 { return (o == d->viewport ? d->viewportEvent(e) : false); } |
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117 private: |
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118 QAbstractScrollAreaPrivate *d; |
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119 }; |
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120 |
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121 class QBoxLayout; |
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122 class QAbstractScrollAreaScrollBarContainer : public QWidget |
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123 { |
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124 public: |
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125 enum LogicalPosition { LogicalLeft = 1, LogicalRight = 2 }; |
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126 |
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127 QAbstractScrollAreaScrollBarContainer(Qt::Orientation orientation, QWidget *parent); |
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128 void addWidget(QWidget *widget, LogicalPosition position); |
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129 QWidgetList widgets(LogicalPosition position); |
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130 void removeWidget(QWidget *widget); |
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131 |
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132 QScrollBar *scrollBar; |
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133 QBoxLayout *layout; |
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134 private: |
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135 int scrollBarLayoutIndex() const; |
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136 |
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137 Qt::Orientation orientation; |
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138 }; |
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139 |
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140 #endif // QT_NO_SCROLLAREA |
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141 |
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142 QT_END_NAMESPACE |
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143 |
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144 #endif // QABSTRACTSCROLLAREA_P_H |