[2] | 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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[561] | 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation ([email protected])
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[2] | 6 | **
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| 7 | ** This file is part of the Qt3Support module of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:LGPL$
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| 10 | ** Commercial Usage
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the
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| 13 | ** Software or, alternatively, in accordance with the terms contained in
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| 14 | ** a written agreement between you and Nokia.
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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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[561] | 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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[2] | 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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[561] | 36 | ** If you have questions regarding the use of this file, please contact
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| 37 | ** Nokia at [email protected].
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[2] | 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 Q3SCROLLVIEW_H
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| 43 | #define Q3SCROLLVIEW_H
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| 44 |
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| 45 | #include <Qt3Support/q3frame.h>
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| 46 | #include <QtGui/qscrollbar.h>
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| 47 |
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| 48 | QT_BEGIN_HEADER
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| 49 |
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| 50 | QT_BEGIN_NAMESPACE
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| 51 |
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| 52 | QT_MODULE(Qt3SupportLight)
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| 53 |
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| 54 | class Q3ScrollViewData;
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| 55 |
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| 56 | class Q_COMPAT_EXPORT Q3ScrollView : public Q3Frame
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| 57 | {
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| 58 | Q_OBJECT
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| 59 | Q_ENUMS( ResizePolicy ScrollBarMode )
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| 60 | Q_PROPERTY( ResizePolicy resizePolicy READ resizePolicy WRITE setResizePolicy )
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| 61 | Q_PROPERTY( ScrollBarMode vScrollBarMode READ vScrollBarMode WRITE setVScrollBarMode )
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| 62 | Q_PROPERTY( ScrollBarMode hScrollBarMode READ hScrollBarMode WRITE setHScrollBarMode )
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| 63 | Q_PROPERTY( int visibleWidth READ visibleWidth )
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| 64 | Q_PROPERTY( int visibleHeight READ visibleHeight )
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| 65 | Q_PROPERTY( int contentsWidth READ contentsWidth )
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| 66 | Q_PROPERTY( int contentsHeight READ contentsHeight )
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| 67 | Q_PROPERTY( int contentsX READ contentsX )
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| 68 | Q_PROPERTY( int contentsY READ contentsY )
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| 69 | Q_PROPERTY( bool dragAutoScroll READ dragAutoScroll WRITE setDragAutoScroll )
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| 70 |
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| 71 | public:
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| 72 | Q3ScrollView(QWidget* parent=0, const char* name=0, Qt::WindowFlags f=0);
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| 73 | ~Q3ScrollView();
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| 74 |
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| 75 | enum ResizePolicy { Default, Manual, AutoOne, AutoOneFit };
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| 76 | virtual void setResizePolicy( ResizePolicy );
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| 77 | ResizePolicy resizePolicy() const;
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| 78 |
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| 79 | void styleChange( QStyle & );
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| 80 | void removeChild(QWidget* child);
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| 81 | virtual void addChild( QWidget* child, int x=0, int y=0 );
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| 82 | virtual void moveChild( QWidget* child, int x, int y );
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| 83 | int childX(QWidget* child);
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| 84 | int childY(QWidget* child);
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| 85 | bool childIsVisible(QWidget* child) { return child->isVisible(); } // obsolete functions
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| 86 | void showChild(QWidget* child, bool yes=true) { child->setVisible(yes); }
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| 87 |
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| 88 | enum ScrollBarMode { Auto, AlwaysOff, AlwaysOn };
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| 89 |
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| 90 | ScrollBarMode vScrollBarMode() const;
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| 91 | virtual void setVScrollBarMode( ScrollBarMode );
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| 92 |
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| 93 | ScrollBarMode hScrollBarMode() const;
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| 94 | virtual void setHScrollBarMode( ScrollBarMode );
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| 95 |
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| 96 | QWidget* cornerWidget() const;
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| 97 | virtual void setCornerWidget(QWidget*);
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| 98 |
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| 99 | // ### 4.0: Consider providing a factory function for scrollbars
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| 100 | // (e.g. make the two following functions virtual)
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| 101 | QScrollBar* horizontalScrollBar() const;
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| 102 | QScrollBar* verticalScrollBar() const;
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| 103 | QWidget* viewport() const;
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| 104 | QWidget* clipper() const;
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| 105 |
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| 106 | int visibleWidth() const;
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| 107 | int visibleHeight() const;
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| 108 |
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| 109 | int contentsWidth() const;
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| 110 | int contentsHeight() const;
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| 111 | int contentsX() const;
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| 112 | int contentsY() const;
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| 113 |
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| 114 | void resize( int w, int h );
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| 115 | void resize( const QSize& );
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| 116 | void setVisible(bool visible);
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| 117 |
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| 118 | void updateContents( int x, int y, int w, int h );
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| 119 | void updateContents( const QRect& r );
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| 120 | void updateContents();
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| 121 | void repaintContents( int x, int y, int w, int h, bool erase=true );
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| 122 | void repaintContents( const QRect& r, bool erase=true );
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| 123 | void repaintContents( bool erase=true );
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| 124 | void contentsToViewport( int x, int y, int& vx, int& vy ) const;
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| 125 | void viewportToContents( int vx, int vy, int& x, int& y ) const;
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| 126 | QPoint contentsToViewport( const QPoint& ) const;
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| 127 | QPoint viewportToContents( const QPoint& ) const;
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| 128 | void enableClipper( bool y );
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| 129 |
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| 130 | void setStaticBackground( bool y );
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| 131 | bool hasStaticBackground() const;
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| 132 |
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| 133 | QSize viewportSize( int, int ) const;
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| 134 | QSize sizeHint() const;
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| 135 | QSize minimumSizeHint() const;
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| 136 |
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| 137 | void removeChild(QObject* child);
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| 138 |
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| 139 | bool isHorizontalSliderPressed();
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| 140 | bool isVerticalSliderPressed();
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| 141 |
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| 142 | virtual void setDragAutoScroll( bool b );
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| 143 | bool dragAutoScroll() const;
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| 144 |
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| 145 | Q_SIGNALS:
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| 146 | void contentsMoving(int x, int y);
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| 147 | void horizontalSliderPressed();
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| 148 | void horizontalSliderReleased();
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| 149 | void verticalSliderPressed();
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| 150 | void verticalSliderReleased();
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| 151 |
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| 152 | public Q_SLOTS:
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| 153 | virtual void resizeContents( int w, int h );
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| 154 | void scrollBy( int dx, int dy );
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| 155 | virtual void setContentsPos( int x, int y );
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| 156 | void ensureVisible(int x, int y);
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| 157 | void ensureVisible(int x, int y, int xmargin, int ymargin);
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| 158 | void center(int x, int y);
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| 159 | void center(int x, int y, float xmargin, float ymargin);
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| 160 |
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| 161 | void updateScrollBars(); // ### virtual in 4.0
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| 162 | void setEnabled( bool enable );
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| 163 |
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| 164 | protected:
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| 165 | virtual void drawContents(QPainter*, int cx, int cy, int cw, int ch);
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| 166 | virtual void drawContentsOffset(QPainter*, int ox, int oy,
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| 167 | int cx, int cy, int cw, int ch);
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| 168 |
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| 169 |
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| 170 | virtual void contentsMousePressEvent( QMouseEvent* );
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| 171 | virtual void contentsMouseReleaseEvent( QMouseEvent* );
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| 172 | virtual void contentsMouseDoubleClickEvent( QMouseEvent* );
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| 173 | virtual void contentsMouseMoveEvent( QMouseEvent* );
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| 174 | virtual void contentsDragEnterEvent( QDragEnterEvent * );
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| 175 | virtual void contentsDragMoveEvent( QDragMoveEvent * );
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| 176 | virtual void contentsDragLeaveEvent( QDragLeaveEvent * );
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| 177 | virtual void contentsDropEvent( QDropEvent * );
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| 178 | virtual void contentsWheelEvent( QWheelEvent * );
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| 179 | virtual void contentsContextMenuEvent( QContextMenuEvent * );
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| 180 |
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| 181 |
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| 182 | virtual void viewportPaintEvent( QPaintEvent* );
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| 183 | virtual void viewportResizeEvent( QResizeEvent* );
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| 184 | virtual void viewportMousePressEvent( QMouseEvent* );
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| 185 | virtual void viewportMouseReleaseEvent( QMouseEvent* );
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| 186 | virtual void viewportMouseDoubleClickEvent( QMouseEvent* );
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| 187 | virtual void viewportMouseMoveEvent( QMouseEvent* );
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| 188 | virtual void viewportDragEnterEvent( QDragEnterEvent * );
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| 189 | virtual void viewportDragMoveEvent( QDragMoveEvent * );
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| 190 | virtual void viewportDragLeaveEvent( QDragLeaveEvent * );
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| 191 | virtual void viewportDropEvent( QDropEvent * );
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| 192 | virtual void viewportWheelEvent( QWheelEvent * );
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| 193 | virtual void viewportContextMenuEvent( QContextMenuEvent * );
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| 194 |
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| 195 | void frameChanged();
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| 196 |
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| 197 | public:
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| 198 | virtual void setMargins(int left, int top, int right, int bottom);
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| 199 | int leftMargin() const;
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| 200 | int topMargin() const;
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| 201 | int rightMargin() const;
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| 202 | int bottomMargin() const;
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| 203 | protected:
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| 204 |
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| 205 | bool focusNextPrevChild( bool next );
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| 206 |
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| 207 | virtual void setHBarGeometry(QScrollBar& hbar, int x, int y, int w, int h);
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| 208 | virtual void setVBarGeometry(QScrollBar& vbar, int x, int y, int w, int h);
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| 209 |
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| 210 | void resizeEvent(QResizeEvent*);
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| 211 | void mousePressEvent( QMouseEvent * );
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| 212 | void mouseReleaseEvent( QMouseEvent * );
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| 213 | void mouseDoubleClickEvent( QMouseEvent * );
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| 214 | void mouseMoveEvent( QMouseEvent * );
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| 215 | void wheelEvent( QWheelEvent * );
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| 216 | void contextMenuEvent( QContextMenuEvent * );
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| 217 | bool eventFilter( QObject *, QEvent *e );
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| 218 |
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| 219 | void setCachedSizeHint( const QSize &sh ) const;
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| 220 | QSize cachedSizeHint() const;
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| 221 | void fontChange( const QFont & );
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| 222 |
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| 223 | private:
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| 224 | void drawContents( QPainter* );
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| 225 | void moveContents(int x, int y);
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| 226 |
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| 227 | Q3ScrollViewData* d;
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| 228 |
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| 229 | private Q_SLOTS:
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| 230 | void hslide(int);
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| 231 | void vslide(int);
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| 232 | void hbarIsPressed();
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| 233 | void hbarIsReleased();
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| 234 | void vbarIsPressed();
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| 235 | void vbarIsReleased();
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| 236 | void doDragAutoScroll();
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| 237 | void startDragAutoScroll();
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| 238 | void stopDragAutoScroll();
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| 239 |
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| 240 | private: // Disabled copy constructor and operator=
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| 241 | Q_DISABLE_COPY(Q3ScrollView)
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| 242 | void changeFrameRect(const QRect&);
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| 243 |
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| 244 | public:
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| 245 | void disableSizeHintCaching();
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| 246 |
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| 247 | };
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| 248 |
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| 249 | QT_END_NAMESPACE
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| 250 |
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| 251 | QT_END_HEADER
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| 252 |
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| 253 | #endif // Q3SCROLLVIEW_H
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