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These rights are described in The Qt Company LGPL Exception 28 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. 29 ** 30 ** GNU General Public License Usage 31 ** Alternatively, this file may be used under the terms of the GNU 32 ** General Public License version 3.0 as published by the Free Software 33 ** Foundation and appearing in the file LICENSE.GPL included in the 34 ** packaging of this file. Please review the following information to 35 ** ensure the GNU General Public License version 3.0 requirements will be 36 ** met: http://www.gnu.org/copyleft/gpl.html. 37 ** 38 ** $QT_END_LICENSE$ 39 ** 40 ****************************************************************************/ 41 42 #ifndef QABSTRACTSCROLLAREA_P_H 43 #define QABSTRACTSCROLLAREA_P_H 44 45 // 46 // W A R N I N G 47 // ------------- 48 // 49 // This file is not part of the Qt API. It exists purely as an 50 // implementation detail. This header file may change from version to 51 // version without notice, or even be removed. 52 // 53 // We mean it. 54 // 55 56 #include "private/qframe_p.h" 57 #include "qabstractscrollarea.h" 58 59 QT_BEGIN_NAMESPACE 60 61 #ifndef QT_NO_SCROLLAREA 62 63 class QScrollBar; 64 class QAbstractScrollAreaScrollBarContainer; 65 class Q_GUI_EXPORT QAbstractScrollAreaPrivate: public QFramePrivate 66 { 67 Q_DECLARE_PUBLIC(QAbstractScrollArea) 68 69 public: 70 QAbstractScrollAreaPrivate(); 71 72 void replaceScrollBar(QScrollBar *scrollBar, Qt::Orientation orientation); 73 74 QAbstractScrollAreaScrollBarContainer *scrollBarContainers[Qt::Vertical + 1]; 75 QScrollBar *hbar, *vbar; 76 Qt::ScrollBarPolicy vbarpolicy, hbarpolicy; 77 78 QWidget *viewport; 79 QWidget *cornerWidget; 80 QRect cornerPaintingRect; 81 #ifdef Q_WS_MAC 82 QRect reverseCornerPaintingRect; 83 #endif 84 int left, top, right, bottom; // viewport margin 85 86 int xoffset, yoffset; 87 88 void init(); 89 void layoutChildren(); 90 // ### Fix for 4.4, talk to Bjoern E or Girish. scrollBarPolicyChanged(Qt::Orientation,Qt::ScrollBarPolicy)91 virtual void scrollBarPolicyChanged(Qt::Orientation, Qt::ScrollBarPolicy) {} 92 93 void _q_hslide(int); 94 void _q_vslide(int); 95 void _q_showOrHideScrollBars(); 96 97 virtual QPoint contentsOffset() const; 98 viewportEvent(QEvent * event)99 inline bool viewportEvent(QEvent *event) 100 { return q_func()->viewportEvent(event); } 101 QScopedPointer<QObject> viewportFilter; 102 103 #ifdef Q_WS_WIN 104 bool singleFingerPanEnabled; 105 void setSingleFingerPanEnabled(bool on = true); 106 #endif 107 }; 108 109 class QAbstractScrollAreaFilter : public QObject 110 { 111 Q_OBJECT 112 public: QAbstractScrollAreaFilter(QAbstractScrollAreaPrivate * p)113 QAbstractScrollAreaFilter(QAbstractScrollAreaPrivate *p) : d(p) 114 { setObjectName(QLatin1String("qt_abstractscrollarea_filter")); } eventFilter(QObject * o,QEvent * e)115 bool eventFilter(QObject *o, QEvent *e) 116 { return (o == d->viewport ? d->viewportEvent(e) : false); } 117 private: 118 QAbstractScrollAreaPrivate *d; 119 }; 120 121 class QBoxLayout; 122 class QAbstractScrollAreaScrollBarContainer : public QWidget 123 { 124 public: 125 enum LogicalPosition { LogicalLeft = 1, LogicalRight = 2 }; 126 127 QAbstractScrollAreaScrollBarContainer(Qt::Orientation orientation, QWidget *parent); 128 void addWidget(QWidget *widget, LogicalPosition position); 129 QWidgetList widgets(LogicalPosition position); 130 void removeWidget(QWidget *widget); 131 132 QScrollBar *scrollBar; 133 QBoxLayout *layout; 134 private: 135 int scrollBarLayoutIndex() const; 136 137 Qt::Orientation orientation; 138 }; 139 140 #endif // QT_NO_SCROLLAREA 141 142 QT_END_NAMESPACE 143 144 #endif // QABSTRACTSCROLLAREA_P_H 145