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It is provided only for illustration; the copyright remains with Trolltech. +<hr> +<pre> +/**************************************************************************** +** $Id: qt/qlayout.h 3.3.8 edited Jan 11 14:38 $ +** +** Definition of layout classes +** +** Created : 960416 +** +** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved. +** +** This file is part of the kernel 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 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 TQt Foundation. +** +** Please review the following information to ensure GNU General +** Public Licensing retquirements 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 TQLAYOUT_H +#define TQLAYOUT_H + +#ifndef QT_H +#include "qobject.h" +#include "qsizepolicy.h" +#include "qwidget.h" +#endif // QT_H + +#include <limits.h> + +#ifndef QT_NO_LAYOUT + +#if 0 +Q_OBJECT +#endif + +static const int TQLAYOUTSIZE_MAX = INT_MAX/256/16; + +class TQGridLayoutBox; +class TQGridLayoutData; +class TQLayout; +class TQLayoutItem; +struct TQLayoutData; +class TQMenuBar; +class TQSpacerItem; +class TQWidget; + +class Q_EXPORT TQGLayoutIterator : public TQShared +{ +public: + virtual ~TQGLayoutIterator(); + virtual TQLayoutItem *next() = 0; + virtual TQLayoutItem *current() = 0; + virtual TQLayoutItem *takeCurrent() = 0; +}; + +class Q_EXPORT TQLayoutIterator +{ +public: + TQLayoutIterator( TQGLayoutIterator *i ) : it( i ) { } + TQLayoutIterator( const TQLayoutIterator &i ) : it( i.it ) { + if ( it ) + it->ref(); + } + ~TQLayoutIterator() { if ( it && it->deref() ) delete it; } + TQLayoutIterator &operator=( const TQLayoutIterator &i ) { + if ( i.it ) + i.it->ref(); + if ( it && it->deref() ) + delete it; + it = i.it; + return *this; + } + TQLayoutItem *operator++() { return it ? it->next() : 0; } + TQLayoutItem *current() { return it ? it->current() : 0; } + TQLayoutItem *takeCurrent() { return it ? it->takeCurrent() : 0; } + void deleteCurrent(); + +private: + TQGLayoutIterator *it; +}; + +class Q_EXPORT TQLayoutItem +{ +public: + TQLayoutItem( int alignment = 0 ) : align( alignment ) { } + virtual ~TQLayoutItem(); + virtual TQSize sizeHint() const = 0; + virtual TQSize minimumSize() const = 0; + virtual TQSize maximumSize() const = 0; + virtual TQSizePolicy::ExpandData expanding() const = 0; + virtual void setGeometry( const TQRect& ) = 0; + virtual TQRect geometry() const = 0; + virtual bool isEmpty() const = 0; + virtual bool hasHeightForWidth() const; + virtual int heightForWidth( int ) const; + // ### add minimumHeightForWidth( int ) in TQt 4.0 + virtual void invalidate(); + + virtual TQWidget *widget(); + virtual TQLayoutIterator iterator(); + virtual TQLayout *layout(); + virtual TQSpacerItem *spacerItem(); + + int alignment() const { return align; } + virtual void setAlignment( int a ); + +protected: + int align; +}; + +class Q_EXPORT TQSpacerItem : public TQLayoutItem +{ +public: + TQSpacerItem( int w, int h, + TQSizePolicy::SizeType hData = TQSizePolicy::Minimum, + TQSizePolicy::SizeType vData = TQSizePolicy::Minimum ) + : width( w ), height( h ), sizeP( hData, vData ) { } + void changeSize( int w, int h, + TQSizePolicy::SizeType hData = TQSizePolicy::Minimum, + TQSizePolicy::SizeType vData = TQSizePolicy::Minimum ); + TQSize sizeHint() const; + TQSize minimumSize() const; + TQSize maximumSize() const; + TQSizePolicy::ExpandData expanding() const; + bool isEmpty() const; + void setGeometry( const TQRect& ); + TQRect geometry() const; + TQSpacerItem *spacerItem(); + +private: + int width; + int height; + TQSizePolicy sizeP; + TQRect rect; +}; + +class Q_EXPORT TQWidgetItem : public TQLayoutItem +{ +public: + TQWidgetItem( TQWidget *w ) : wid( w ) { } + TQSize sizeHint() const; + TQSize minimumSize() const; + TQSize maximumSize() const; + TQSizePolicy::ExpandData expanding() const; + bool isEmpty() const; + void setGeometry( const TQRect& ); + TQRect geometry() const; + virtual TQWidget *widget(); + + bool hasHeightForWidth() const; + int heightForWidth( int ) const; + +private: + TQWidget *wid; +}; + +class Q_EXPORT TQLayout : public TQObject, public TQLayoutItem +{ + Q_OBJECT + Q_ENUMS( ResizeMode ) + Q_PROPERTY( int margin READ margin WRITE setMargin ) + Q_PROPERTY( int spacing READ spacing WRITE setSpacing ) + Q_PROPERTY( ResizeMode resizeMode READ resizeMode WRITE setResizeMode ) + +public: + // ### TQt 4.0: put 'Auto' first in enum + enum ResizeMode { FreeResize, Minimum, Fixed, Auto }; + + TQLayout( TQWidget *parent, int margin = 0, int spacing = -1, + const char *name = 0 ); + TQLayout( TQLayout *parentLayout, int spacing = -1, const char *name = 0 ); + TQLayout( int spacing = -1, const char *name = 0 ); + ~TQLayout(); + + int margin() const { return outsideBorder; } + int spacing() const { return insideSpacing; } + + virtual void setMargin( int ); + virtual void setSpacing( int ); + + int defaultBorder() const { return insideSpacing; } + void freeze( int w, int h ); + void freeze() { setResizeMode( Fixed ); } + + void setResizeMode( ResizeMode ); + ResizeMode resizeMode() const; + +#ifndef QT_NO_MENUBAR + virtual void setMenuBar( TQMenuBar *w ); + TQMenuBar *menuBar() const { return menubar; } +#endif + + TQWidget *mainWidget(); + bool isTopLevel() const { return topLevel; } + + virtual void setAutoAdd( bool ); + bool autoAdd() const { return autoNewChild; } + + void invalidate(); + TQRect geometry() const; + bool activate(); + + void add( TQWidget *w ) { addItem( new TQWidgetItem(w) ); } + virtual void addItem( TQLayoutItem * ) = 0; + + void remove( TQWidget *w ); + void removeItem( TQLayoutItem * ); + + TQSizePolicy::ExpandData expanding() const; + TQSize minimumSize() const; + TQSize maximumSize() const; + void setGeometry( const TQRect& ) = 0; + TQLayoutIterator iterator() = 0; + bool isEmpty() const; + + int totalHeightForWidth( int w ) const; + TQSize totalMinimumSize() const; + TQSize totalMaximumSize() const; + TQSize totalSizeHint() const; + TQLayout *layout(); + + bool supportsMargin() const { return marginImpl; } + + void setEnabled( bool ); + bool isEnabled() const; + +protected: + bool eventFilter( TQObject *, TQEvent * ); + void childEvent( TQChildEvent *e ); + void addChildLayout( TQLayout *l ); + void deleteAllItems(); + + void setSupportsMargin( bool ); + TQRect alignmentRect( const TQRect& ) const; + +private: + void setWidgetLayout( TQWidget *, TQLayout * ); + void init(); + int insideSpacing; + int outsideBorder; + uint topLevel : 1; + uint enabled : 1; + uint autoNewChild : 1; + uint frozen : 1; + uint activated : 1; + uint marginImpl : 1; + uint autoMinimum : 1; + uint autoResizeMode : 1; + TQRect rect; + TQLayoutData *extraData; +#ifndef QT_NO_MENUBAR + TQMenuBar *menubar; +#endif + +private: +#if defined(Q_DISABLE_COPY) + TQLayout( const TQLayout & ); + TQLayout &operator=( const TQLayout & ); +#endif + + static void propagateSpacing( TQLayout *layout ); +}; + +inline void TQLayoutIterator::deleteCurrent() +{ + delete takeCurrent(); +} + +class Q_EXPORT TQGridLayout : public TQLayout +{ + Q_OBJECT +public: + TQGridLayout( TQWidget *parent, int nRows = 1, int nCols = 1, int border = 0, + int spacing = -1, const char *name = 0 ); + TQGridLayout( int nRows = 1, int nCols = 1, int spacing = -1, + const char *name = 0 ); + TQGridLayout( TQLayout *parentLayout, int nRows = 1, int nCols = 1, + int spacing = -1, const char *name = 0 ); + ~TQGridLayout(); + + TQSize sizeHint() const; + TQSize minimumSize() const; + TQSize maximumSize() const; + + // ### remove 'virtual' in 4.0 (or add 'virtual' to set{Row,Col}Spacing()) + virtual void setRowStretch( int row, int stretch ); + virtual void setColStretch( int col, int stretch ); + int rowStretch( int row ) const; + int colStretch( int col ) const; + + void setRowSpacing( int row, int minSize ); + void setColSpacing( int col, int minSize ); + int rowSpacing( int row ) const; + int colSpacing( int col ) const; + + int numRows() const; + int numCols() const; + TQRect cellGeometry( int row, int col ) const; + + bool hasHeightForWidth() const; + int heightForWidth( int ) const; + int minimumHeightForWidth( int ) const; + + TQSizePolicy::ExpandData expanding() const; + void invalidate(); + + void addItem( TQLayoutItem * ); + void addItem( TQLayoutItem *item, int row, int col ); + void addMultiCell( TQLayoutItem *, int fromRow, int toRow, + int fromCol, int toCol, int align = 0 ); + + void addWidget( TQWidget *, int row, int col, int align = 0 ); + void addMultiCellWidget( TQWidget *, int fromRow, int toRow, + int fromCol, int toCol, int align = 0 ); + void addLayout( TQLayout *layout, int row, int col); + void addMultiCellLayout( TQLayout *layout, int fromRow, int toRow, + int fromCol, int toCol, int align = 0 ); + void addRowSpacing( int row, int minsize ); + void addColSpacing( int col, int minsize ); + + void expand( int rows, int cols ); + + enum Corner { TopLeft, TopRight, BottomLeft, BottomRight }; + void setOrigin( Corner ); + Corner origin() const; + TQLayoutIterator iterator(); + void setGeometry( const TQRect& ); + +protected: + bool findWidget( TQWidget* w, int *r, int *c ); + void add( TQLayoutItem*, int row, int col ); + +private: +#if defined(Q_DISABLE_COPY) + TQGridLayout( const TQGridLayout & ); + TQGridLayout &operator=( const TQGridLayout & ); +#endif + + void init( int rows, int cols ); + TQGridLayoutData *data; +}; + +class TQBoxLayoutData; +class TQDockWindow; + +class Q_EXPORT TQBoxLayout : public TQLayout +{ + Q_OBJECT +public: + enum Direction { LeftToRight, RightToLeft, TopToBottom, BottomToTop, + Down = TopToBottom, Up = BottomToTop }; + + TQBoxLayout( TQWidget *parent, Direction, int border = 0, int spacing = -1, + const char *name = 0 ); + TQBoxLayout( TQLayout *parentLayout, Direction, int spacing = -1, + const char *name = 0 ); + TQBoxLayout( Direction, int spacing = -1, const char *name = 0 ); + ~TQBoxLayout(); + + void addItem( TQLayoutItem * ); + + Direction direction() const { return dir; } + void setDirection( Direction ); + + void addSpacing( int size ); + void addStretch( int stretch = 0 ); + void addWidget( TQWidget *, int stretch = 0, int alignment = 0 ); + void addLayout( TQLayout *layout, int stretch = 0 ); + void addStrut( int ); + + void insertSpacing( int index, int size ); + void insertStretch( int index, int stretch = 0 ); + void insertWidget( int index, TQWidget *widget, int stretch = 0, + int alignment = 0 ); + void insertLayout( int index, TQLayout *layout, int stretch = 0 ); + + bool setStretchFactor( TQWidget*, int stretch ); + bool setStretchFactor( TQLayout *l, int stretch ); + + TQSize sizeHint() const; + TQSize minimumSize() const; + TQSize maximumSize() const; + + bool hasHeightForWidth() const; + int heightForWidth( int ) const; + int minimumHeightForWidth( int ) const; + + TQSizePolicy::ExpandData expanding() const; + void invalidate(); + TQLayoutIterator iterator(); + void setGeometry( const TQRect& ); + + int findWidget( TQWidget* w ); + +protected: + void insertItem( int index, TQLayoutItem * ); + +private: + friend class TQDockWindow; +#if defined(Q_DISABLE_COPY) + TQBoxLayout( const TQBoxLayout & ); + TQBoxLayout &operator=( const TQBoxLayout & ); +#endif + + void setupGeom(); + void calcHfw( int ); + TQBoxLayoutData *data; + Direction dir; + TQBoxLayout *createTmpCopy(); +}; + +class Q_EXPORT TQHBoxLayout : public TQBoxLayout +{ + Q_OBJECT +public: + TQHBoxLayout( TQWidget *parent, int border = 0, + int spacing = -1, const char *name = 0 ); + TQHBoxLayout( TQLayout *parentLayout, + int spacing = -1, const char *name = 0 ); + TQHBoxLayout( int spacing = -1, const char *name = 0 ); + + ~TQHBoxLayout(); + +private: // Disabled copy constructor and operator= +#if defined(Q_DISABLE_COPY) + TQHBoxLayout( const TQHBoxLayout & ); + TQHBoxLayout &operator=( const TQHBoxLayout & ); +#endif +}; + +class Q_EXPORT TQVBoxLayout : public TQBoxLayout +{ + Q_OBJECT +public: + TQVBoxLayout( TQWidget *parent, int border = 0, + int spacing = -1, const char *name = 0 ); + TQVBoxLayout( TQLayout *parentLayout, + int spacing = -1, const char *name = 0 ); + TQVBoxLayout( int spacing = -1, const char *name = 0 ); + + ~TQVBoxLayout(); + +private: // Disabled copy constructor and operator= +#if defined(Q_DISABLE_COPY) + TQVBoxLayout( const TQVBoxLayout & ); + TQVBoxLayout &operator=( const TQVBoxLayout & ); +#endif +}; + +#endif // QT_NO_LAYOUT +#endif // TQLAYOUT_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>TQt 3.3.8</div> +</table></div></address></body> +</html> |