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/****************************************************************************
**
** Definition of TQScrollView class
**
** Created : 970523
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the widgets module of the TQt 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 files LICENSE.GPL2
** and LICENSE.GPL3 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 TQt 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.TQPL
** included in the packaging of this file. Licensees holding valid TQt
** Commercial licenses may use this file in accordance with the TQt
** 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 TQSCROLLVIEW_H
#define TQSCROLLVIEW_H
#ifndef QT_H
#include "ntqframe.h"
#include "ntqscrollbar.h"
#endif // QT_H
#ifndef TQT_NO_SCROLLVIEW
class TQScrollViewData;
class TQ_EXPORT TQScrollView : public TQFrame
{
TQ_OBJECT
TQ_ENUMS( ResizePolicy ScrollBarMode )
TQ_PROPERTY( ResizePolicy resizePolicy READ resizePolicy WRITE setResizePolicy )
TQ_PROPERTY( ScrollBarMode vScrollBarMode READ vScrollBarMode WRITE setVScrollBarMode )
TQ_PROPERTY( ScrollBarMode hScrollBarMode READ hScrollBarMode WRITE setHScrollBarMode )
TQ_PROPERTY( int visibleWidth READ visibleWidth )
TQ_PROPERTY( int visibleHeight READ visibleHeight )
TQ_PROPERTY( int contentsWidth READ contentsWidth )
TQ_PROPERTY( int contentsHeight READ contentsHeight )
TQ_PROPERTY( int contentsX READ contentsX )
TQ_PROPERTY( int contentsY READ contentsY )
#ifndef TQT_NO_DRAGANDDROP
TQ_PROPERTY( bool dragAutoScroll READ dragAutoScroll WRITE setDragAutoScroll )
#endif
public:
TQScrollView(TQWidget* parent=0, const char* name=0, WFlags f=0);
~TQScrollView();
enum ResizePolicy { Default, Manual, AutoOne, AutoOneFit };
virtual void setResizePolicy( ResizePolicy );
ResizePolicy resizePolicy() const;
void styleChange( TQStyle & );
void removeChild(TQWidget* child);
virtual void addChild( TQWidget* child, int x=0, int y=0 );
virtual void moveChild( TQWidget* child, int x, int y );
int childX(TQWidget* child);
int childY(TQWidget* child);
bool childIsVisible(TQWidget* child) { return child->isVisible(); } // obsolete functions
void showChild(TQWidget* 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 );
TQWidget* cornerWidget() const;
virtual void setCornerWidget(TQWidget*);
// ### 4.0: Consider providing a factory function for scrollbars
// (e.g. make the two following functions virtual)
TQScrollBar* horizontalScrollBar() const;
TQScrollBar* verticalScrollBar() const;
TQWidget* viewport() const;
TQWidget* 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 TQSize& );
void show();
void updateContents( int x, int y, int w, int h );
void updateContents( const TQRect& r );
void updateContents();
void repaintContents( int x, int y, int w, int h, bool erase=TRUE );
void repaintContents( const TQRect& 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;
TQPoint contentsToViewport( const TQPoint& ) const;
TQPoint viewportToContents( const TQPoint& ) const;
void enableClipper( bool y );
void setStaticBackground( bool y );
bool hasStaticBackground() const;
TQSize viewportSize( int, int ) const;
TQSize sizeHint() const;
TQSize minimumSizeHint() const;
void removeChild(TQObject* child);
bool isHorizontalSliderPressed();
bool isVerticalSliderPressed();
#ifndef TQT_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(TQPainter*, int cx, int cy, int cw, int ch);
virtual void drawContentsOffset(TQPainter*, int ox, int oy,
int cx, int cy, int cw, int ch);
virtual void contentsMousePressEvent( TQMouseEvent* );
virtual void contentsMouseReleaseEvent( TQMouseEvent* );
virtual void contentsMouseDoubleClickEvent( TQMouseEvent* );
virtual void contentsMouseMoveEvent( TQMouseEvent* );
#ifndef TQT_NO_DRAGANDDROP
virtual void contentsDragEnterEvent( TQDragEnterEvent * );
virtual void contentsDragMoveEvent( TQDragMoveEvent * );
virtual void contentsDragLeaveEvent( TQDragLeaveEvent * );
virtual void contentsDropEvent( TQDropEvent * );
#endif
#ifndef TQT_NO_WHEELEVENT
virtual void contentsWheelEvent( TQWheelEvent * );
#endif
virtual void contentsContextMenuEvent( TQContextMenuEvent * );
virtual void viewportPaintEvent( TQPaintEvent* );
virtual void viewportResizeEvent( TQResizeEvent* );
virtual void viewportMousePressEvent( TQMouseEvent* );
virtual void viewportMouseReleaseEvent( TQMouseEvent* );
virtual void viewportMouseDoubleClickEvent( TQMouseEvent* );
virtual void viewportMouseMoveEvent( TQMouseEvent* );
#ifndef TQT_NO_DRAGANDDROP
virtual void viewportDragEnterEvent( TQDragEnterEvent * );
virtual void viewportDragMoveEvent( TQDragMoveEvent * );
virtual void viewportDragLeaveEvent( TQDragLeaveEvent * );
virtual void viewportDropEvent( TQDropEvent * );
#endif
#ifndef TQT_NO_WHEELEVENT
virtual void viewportWheelEvent( TQWheelEvent * );
#endif
virtual void viewportContextMenuEvent( TQContextMenuEvent * );
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(TQScrollBar& hbar, int x, int y, int w, int h);
virtual void setVBarGeometry(TQScrollBar& vbar, int x, int y, int w, int h);
void resizeEvent(TQResizeEvent*);
void mousePressEvent( TQMouseEvent * );
void mouseReleaseEvent( TQMouseEvent * );
void mouseDoubleClickEvent( TQMouseEvent * );
void mouseMoveEvent( TQMouseEvent * );
#ifndef TQT_NO_WHEELEVENT
void wheelEvent( TQWheelEvent * );
#endif
void contextMenuEvent( TQContextMenuEvent * );
bool eventFilter( TQObject *, TQEvent *e );
void setCachedSizeHint( const TQSize &sh ) const;
TQSize cachedSizeHint() const;
void fontChange( const TQFont & );
private:
void drawContents( TQPainter* );
void moveContents(int x, int y);
TQScrollViewData* d;
private slots:
void hslide(int);
void vslide(int);
void hbarIsPressed();
void hbarIsReleased();
void vbarIsPressed();
void vbarIsReleased();
#ifndef TQT_NO_DRAGANDDROP
void doDragAutoScroll();
void startDragAutoScroll();
void stopDragAutoScroll();
#endif
private: // Disabled copy constructor and operator=
#if defined(TQ_DISABLE_COPY)
TQScrollView( const TQScrollView & );
TQScrollView &operator=( const TQScrollView & );
#endif
void changeFrameRect(const TQRect&);
public:
void disableSizeHintCaching();
};
#endif // TQT_NO_SCROLLVIEW
#endif // TQSCROLLVIEW_H
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