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It is provided only for illustration; the copyright remains with Trolltech. +<hr> +<pre> +/**************************************************************************** +** $Id: qt/qscrollview.h 3.3.8 edited Jan 11 14:38 $ +** +** Definition of QScrollView class +** +** Created : 970523 +** +** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved. +** +** This file is part of the widgets module of the Qt GUI Toolkit. +** +** This file may be used under the terms of the GNU General Public +** License versions 2.0 or 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Alternatively you may (at your option) use any +** later version of the GNU General Public License if such license has +** been publicly approved by Trolltech ASA (or its successors, if any) +** and the KDE Free Qt Foundation. +** +** Please review the following information to ensure GNU General +** Public Licensing requirements will be met: +** http://trolltech.com/products/qt/licenses/licensing/opensource/. +** If you are unsure which license is appropriate for your use, please +** review the following information: +** http://trolltech.com/products/qt/licenses/licensing/licensingoverview +** or contact the sales department at sales@trolltech.com. +** +** This file may be used under the terms of the Q Public License as +** defined by Trolltech ASA and appearing in the file LICENSE.QPL +** included in the packaging of this file. Licensees holding valid Qt +** Commercial licenses may use this file in accordance with the Qt +** Commercial License Agreement provided with the Software. +** +** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, +** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted +** herein. +** +**********************************************************************/ +#ifndef QSCROLLVIEW_H +#define QSCROLLVIEW_H + +#ifndef QT_H +#include "qframe.h" +#include "qscrollbar.h" +#endif // QT_H + +#ifndef QT_NO_SCROLLVIEW + +class QScrollViewData; + +class Q_EXPORT QScrollView : public QFrame +{ + Q_OBJECT + Q_ENUMS( ResizePolicy ScrollBarMode ) + Q_PROPERTY( ResizePolicy resizePolicy READ resizePolicy WRITE setResizePolicy ) + Q_PROPERTY( ScrollBarMode vScrollBarMode READ vScrollBarMode WRITE setVScrollBarMode ) + Q_PROPERTY( ScrollBarMode hScrollBarMode READ hScrollBarMode WRITE setHScrollBarMode ) + Q_PROPERTY( int visibleWidth READ visibleWidth ) + Q_PROPERTY( int visibleHeight READ visibleHeight ) + Q_PROPERTY( int contentsWidth READ contentsWidth ) + Q_PROPERTY( int contentsHeight READ contentsHeight ) + Q_PROPERTY( int contentsX READ contentsX ) + Q_PROPERTY( int contentsY READ contentsY ) +#ifndef QT_NO_DRAGANDDROP + Q_PROPERTY( bool dragAutoScroll READ dragAutoScroll WRITE setDragAutoScroll ) +#endif + +public: + QScrollView(QWidget* parent=0, const char* name=0, WFlags f=0); + ~QScrollView(); + + enum ResizePolicy { Default, Manual, AutoOne, AutoOneFit }; + virtual void setResizePolicy( ResizePolicy ); + ResizePolicy resizePolicy() const; + + void styleChange( QStyle & ); + void removeChild(QWidget* child); + virtual void addChild( QWidget* child, int x=0, int y=0 ); + virtual void moveChild( QWidget* child, int x, int y ); + int childX(QWidget* child); + int childY(QWidget* child); + bool childIsVisible(QWidget* child) { return child->isVisible(); } // obsolete functions + void showChild(QWidget* child, bool yes=TRUE) { + if ( yes ) + child->show(); + else + child->hide(); + } + + enum ScrollBarMode { Auto, AlwaysOff, AlwaysOn }; + + ScrollBarMode vScrollBarMode() const; + virtual void setVScrollBarMode( ScrollBarMode ); + + ScrollBarMode hScrollBarMode() const; + virtual void setHScrollBarMode( ScrollBarMode ); + + QWidget* cornerWidget() const; + virtual void setCornerWidget(QWidget*); + + // ### 4.0: Consider providing a factory function for scrollbars + // (e.g. make the two following functions virtual) + QScrollBar* horizontalScrollBar() const; + QScrollBar* verticalScrollBar() const; + QWidget* viewport() const; + QWidget* clipper() const; + + int visibleWidth() const; + int visibleHeight() const; + + int contentsWidth() const; + int contentsHeight() const; + int contentsX() const; + int contentsY() const; + + void resize( int w, int h ); + void resize( const QSize& ); + void show(); + + void updateContents( int x, int y, int w, int h ); + void updateContents( const QRect& r ); + void updateContents(); + void repaintContents( int x, int y, int w, int h, bool erase=TRUE ); + void repaintContents( const QRect& r, bool erase=TRUE ); + void repaintContents( bool erase=TRUE ); + void contentsToViewport( int x, int y, int& vx, int& vy ) const; + void viewportToContents( int vx, int vy, int& x, int& y ) const; + QPoint contentsToViewport( const QPoint& ) const; + QPoint viewportToContents( const QPoint& ) const; + void enableClipper( bool y ); + + void setStaticBackground( bool y ); + bool hasStaticBackground() const; + + QSize viewportSize( int, int ) const; + QSize sizeHint() const; + QSize minimumSizeHint() const; + + void removeChild(QObject* child); + + bool isHorizontalSliderPressed(); + bool isVerticalSliderPressed(); + +#ifndef QT_NO_DRAGANDDROP + virtual void setDragAutoScroll( bool b ); + bool dragAutoScroll() const; +#endif + +signals: + void contentsMoving(int x, int y); + void horizontalSliderPressed(); + void horizontalSliderReleased(); + void verticalSliderPressed(); + void verticalSliderReleased(); + +public slots: + virtual void resizeContents( int w, int h ); + void scrollBy( int dx, int dy ); + virtual void setContentsPos( int x, int y ); + void ensureVisible(int x, int y); + void ensureVisible(int x, int y, int xmargin, int ymargin); + void center(int x, int y); + void center(int x, int y, float xmargin, float ymargin); + + void updateScrollBars(); // ### virtual in 4.0 + void setEnabled( bool enable ); + +protected: + virtual void drawContents(QPainter*, int cx, int cy, int cw, int ch); + virtual void drawContentsOffset(QPainter*, int ox, int oy, + int cx, int cy, int cw, int ch); + + + virtual void contentsMousePressEvent( QMouseEvent* ); + virtual void contentsMouseReleaseEvent( QMouseEvent* ); + virtual void contentsMouseDoubleClickEvent( QMouseEvent* ); + virtual void contentsMouseMoveEvent( QMouseEvent* ); +#ifndef QT_NO_DRAGANDDROP + virtual void contentsDragEnterEvent( QDragEnterEvent * ); + virtual void contentsDragMoveEvent( QDragMoveEvent * ); + virtual void contentsDragLeaveEvent( QDragLeaveEvent * ); + virtual void contentsDropEvent( QDropEvent * ); +#endif +#ifndef QT_NO_WHEELEVENT + virtual void contentsWheelEvent( QWheelEvent * ); +#endif + virtual void contentsContextMenuEvent( QContextMenuEvent * ); + + + virtual void viewportPaintEvent( QPaintEvent* ); + virtual void viewportResizeEvent( QResizeEvent* ); + virtual void viewportMousePressEvent( QMouseEvent* ); + virtual void viewportMouseReleaseEvent( QMouseEvent* ); + virtual void viewportMouseDoubleClickEvent( QMouseEvent* ); + virtual void viewportMouseMoveEvent( QMouseEvent* ); +#ifndef QT_NO_DRAGANDDROP + virtual void viewportDragEnterEvent( QDragEnterEvent * ); + virtual void viewportDragMoveEvent( QDragMoveEvent * ); + virtual void viewportDragLeaveEvent( QDragLeaveEvent * ); + virtual void viewportDropEvent( QDropEvent * ); +#endif +#ifndef QT_NO_WHEELEVENT + virtual void viewportWheelEvent( QWheelEvent * ); +#endif + virtual void viewportContextMenuEvent( QContextMenuEvent * ); + + void frameChanged(); + + virtual void setMargins(int left, int top, int right, int bottom); + int leftMargin() const; + int topMargin() const; + int rightMargin() const; + int bottomMargin() const; + + bool focusNextPrevChild( bool next ); + + virtual void setHBarGeometry(QScrollBar& hbar, int x, int y, int w, int h); + virtual void setVBarGeometry(QScrollBar& vbar, int x, int y, int w, int h); + + void resizeEvent(QResizeEvent*); + void mousePressEvent( QMouseEvent * ); + void mouseReleaseEvent( QMouseEvent * ); + void mouseDoubleClickEvent( QMouseEvent * ); + void mouseMoveEvent( QMouseEvent * ); +#ifndef QT_NO_WHEELEVENT + void wheelEvent( QWheelEvent * ); +#endif + void contextMenuEvent( QContextMenuEvent * ); + bool eventFilter( QObject *, QEvent *e ); + + void setCachedSizeHint( const QSize &sh ) const; + QSize cachedSizeHint() const; + void fontChange( const QFont & ); + +private: + void drawContents( QPainter* ); + void moveContents(int x, int y); + + QScrollViewData* d; + +private slots: + void hslide(int); + void vslide(int); + void hbarIsPressed(); + void hbarIsReleased(); + void vbarIsPressed(); + void vbarIsReleased(); +#ifndef QT_NO_DRAGANDDROP + void doDragAutoScroll(); + void startDragAutoScroll(); + void stopDragAutoScroll(); +#endif + +private: // Disabled copy constructor and operator= +#if defined(Q_DISABLE_COPY) + QScrollView( const QScrollView & ); + QScrollView &operator=( const QScrollView & ); +#endif + void changeFrameRect(const QRect&); + +public: + void disableSizeHintCaching(); + +}; + +#endif // QT_NO_SCROLLVIEW + +#endif // QSCROLLVIEW_H +</pre> +<!-- eof --> +<p><address><hr><div align=center> +<table width=100% cellspacing=0 border=0><tr> +<td>Copyright © 2007 +<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> +<td align=right><div align=right>Qt 3.3.8</div> +</table></div></address></body> +</html> |