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32<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>qscrollbar.h</h1>
33
34<p>This is the verbatim text of the qscrollbar.h include file. It is provided only for illustration; the copyright remains with Trolltech.
35<hr>
36<pre>
37/****************************************************************************
38** $Id: qscrollbar-h.html 2051 2007-02-21 10:04:20Z chehrlic $
39**
40** Definition of QScrollBar class
41**
42** Created : 940427
43**
44** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
45**
46** This file is part of the widgets module of the Qt GUI Toolkit.
47**
48** This file may be distributed under the terms of the Q Public License
49** as defined by Trolltech ASA of Norway and appearing in the file
50** LICENSE.QPL included in the packaging of this file.
51**
52** This file may be distributed and/or modified under the terms of the
53** GNU General Public License version 2 as published by the Free Software
54** Foundation and appearing in the file LICENSE.GPL included in the
55** packaging of this file.
56**
57** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
58** licenses may use this file in accordance with the Qt Commercial License
59** Agreement provided with the Software.
60**
61** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
62** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
63**
64** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
65** information about Qt Commercial License Agreements.
66** See http://www.trolltech.com/qpl/ for QPL licensing information.
67** See http://www.trolltech.com/gpl/ for GPL licensing information.
68**
69** Contact info@trolltech.com if any conditions of this licensing are
70** not clear to you.
71**
72**********************************************************************/
73
74#ifndef QSCROLLBAR_H
75#define QSCROLLBAR_H
76
77class QTimer;
78
79#ifndef QT_H
80#include "qwidget.h"
81#include "qrangecontrol.h"
82#endif // QT_H
83
84#ifndef QT_NO_SCROLLBAR
85
86class Q_EXPORT QScrollBar : public QWidget, public QRangeControl
87{
88 Q_OBJECT
89 Q_PROPERTY( int minValue READ minValue WRITE setMinValue )
90 Q_PROPERTY( int maxValue READ maxValue WRITE setMaxValue )
91 Q_PROPERTY( int lineStep READ lineStep WRITE setLineStep )
92 Q_PROPERTY( int pageStep READ pageStep WRITE setPageStep )
93 Q_PROPERTY( int value READ value WRITE setValue )
94 Q_PROPERTY( bool tracking READ tracking WRITE setTracking )
95 Q_PROPERTY( bool draggingSlider READ draggingSlider )
96 Q_PROPERTY( Orientation orientation READ orientation WRITE setOrientation )
97
98public:
99 QScrollBar( QWidget *parent, const char* name = 0 );
100 QScrollBar( Orientation, QWidget *parent, const char* name = 0 );
101 QScrollBar( int minValue, int maxValue, int lineStep, int pageStep,
102 int value, Orientation, QWidget *parent, const char* name = 0 );
103 ~QScrollBar();
104
105 virtual void setOrientation( Orientation );
106 Orientation orientation() const;
107 virtual void setTracking( bool enable );
108 bool tracking() const;
109 bool draggingSlider() const;
110
111 virtual void setPalette( const QPalette &amp; );
112 virtual QSize sizeHint() const;
113 virtual void setSizePolicy( QSizePolicy sp );
114 void setSizePolicy( QSizePolicy::SizeType hor, QSizePolicy::SizeType ver, bool hfw = FALSE );
115
116 int minValue() const;
117 int maxValue() const;
118 void setMinValue( int );
119 void setMaxValue( int );
120 int lineStep() const;
121 int pageStep() const;
122 void setLineStep( int );
123 void setPageStep( int );
124 int value() const;
125
126 int sliderStart() const;
127 QRect sliderRect() const;
128
129public slots:
130 void setValue( int );
131
132signals:
133 void valueChanged( int value );
134 void sliderPressed();
135 void sliderMoved( int value );
136 void sliderReleased();
137 void nextLine();
138 void prevLine();
139 void nextPage();
140 void prevPage();
141
142protected:
143#ifndef QT_NO_WHEELEVENT
144 void wheelEvent( QWheelEvent * );
145#endif
146 void keyPressEvent( QKeyEvent * );
147 void resizeEvent( QResizeEvent * );
148 void paintEvent( QPaintEvent * );
149
150 void mousePressEvent( QMouseEvent * );
151 void mouseReleaseEvent( QMouseEvent * );
152 void mouseMoveEvent( QMouseEvent * );
153 void contextMenuEvent( QContextMenuEvent * );
154 void hideEvent( QHideEvent* );
155
156 void valueChange();
157 void stepChange();
158 void rangeChange();
159
160 void styleChange( QStyle&amp; );
161
162private slots:
163 void doAutoRepeat();
164
165private:
166 void init();
167 void positionSliderFromValue();
168 int calculateValueFromSlider() const;
169
170 void startAutoRepeat();
171 void stopAutoRepeat();
172
173 int rangeValueToSliderPos( int val ) const;
174 int sliderPosToRangeValue( int val ) const;
175
176 void action( int control );
177
178 void drawControls( uint controls, uint activeControl ) const;
179 void drawControls( uint controls, uint activeControl,
180 QPainter *p ) const;
181
182 uint pressedControl;
183 bool track;
184 bool clickedAt;
185 Orientation orient;
186
187 int slidePrevVal;
188 QCOORD sliderPos;
189 QCOORD clickOffset;
190
191 QTimer * repeater;
192 void * d;
193
194private: // Disabled copy constructor and operator=
195#if defined(Q_DISABLE_COPY)
196 QScrollBar( const QScrollBar &amp; );
197 QScrollBar &amp;operator=( const QScrollBar &amp; );
198#endif
199};
200
201
202inline void QScrollBar::setTracking( bool t )
203{
204 track = t;
205}
206
207inline bool QScrollBar::tracking() const
208{
209 return track;
210}
211
212inline QScrollBar::Orientation QScrollBar::orientation() const
213{
214 return orient;
215}
216
217inline int QScrollBar::sliderStart() const
218{
219 return sliderPos;
220}
221
222inline void QScrollBar::setSizePolicy( QSizePolicy::SizeType hor, QSizePolicy::SizeType ver, bool hfw )
223{
224 QWidget::setSizePolicy( hor, ver, hfw );
225}
226
227
228#endif // QT_NO_SCROLLBAR
229
230#endif // QSCROLLBAR_H
231</pre>
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