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474 lines
14 KiB
474 lines
14 KiB
/****************************************************************************
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**
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** Definition of layout classes
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**
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** Created : 960416
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**
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of the kernel module of the TQt GUI Toolkit.
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**
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** This file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free
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** Software Foundation and appearing in the files LICENSE.GPL2
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** and LICENSE.GPL3 included in the packaging of this file.
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** Alternatively you may (at your option) use any later version
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** of the GNU General Public License if such license has been
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** publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free TQt Foundation.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** This file may be used under the terms of the Q Public License as
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** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
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** included in the packaging of this file. Licensees holding valid TQt
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** Commercial licenses may use this file in accordance with the TQt
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** Commercial License Agreement provided with the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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**
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**********************************************************************/
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#ifndef TQLAYOUT_H
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#define TQLAYOUT_H
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#ifndef QT_H
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#include "ntqobject.h"
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#include "ntqsizepolicy.h"
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#include "ntqwidget.h"
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#endif // QT_H
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#include <limits.h>
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#ifndef TQT_NO_LAYOUT
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#if 0
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TQ_OBJECT
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#endif
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static const int TQLAYOUTSIZE_MAX = INT_MAX/256/16;
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class TQGridLayoutBox;
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class TQGridLayoutData;
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class TQLayout;
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class TQLayoutItem;
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struct TQLayoutData;
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class TQMenuBar;
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class TQSpacerItem;
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class TQWidget;
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class TQ_EXPORT TQGLayoutIterator : public TQShared
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{
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public:
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virtual ~TQGLayoutIterator();
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virtual TQLayoutItem *next() = 0;
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virtual TQLayoutItem *current() = 0;
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virtual TQLayoutItem *takeCurrent() = 0;
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};
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class TQ_EXPORT TQLayoutIterator
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{
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public:
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TQLayoutIterator( TQGLayoutIterator *i ) : it( i ) { }
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TQLayoutIterator( const TQLayoutIterator &i ) : it( i.it ) {
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if ( it )
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it->ref();
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}
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~TQLayoutIterator() { if ( it && it->deref() ) delete it; }
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TQLayoutIterator &operator=( const TQLayoutIterator &i ) {
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if ( i.it )
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i.it->ref();
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if ( it && it->deref() )
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delete it;
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it = i.it;
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return *this;
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}
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TQLayoutItem *operator++() { return it ? it->next() : 0; }
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TQLayoutItem *current() { return it ? it->current() : 0; }
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TQLayoutItem *takeCurrent() { return it ? it->takeCurrent() : 0; }
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void deleteCurrent();
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private:
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TQGLayoutIterator *it;
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};
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class TQ_EXPORT TQLayoutItem
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{
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public:
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TQLayoutItem( int alignment = 0 ) : align( alignment ) { }
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virtual ~TQLayoutItem();
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virtual TQSize sizeHint() const = 0;
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virtual TQSize minimumSize() const = 0;
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virtual TQSize maximumSize() const = 0;
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virtual TQSizePolicy::ExpandData expanding() const = 0;
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virtual void setGeometry( const TQRect& ) = 0;
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virtual TQRect geometry() const = 0;
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virtual bool isEmpty() const = 0;
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virtual bool hasHeightForWidth() const;
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virtual int heightForWidth( int ) const;
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// ### add minimumHeightForWidth( int ) in TQt 4.0
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virtual void invalidate();
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virtual TQWidget *widget();
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virtual TQLayoutIterator iterator();
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virtual TQLayout *layout();
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virtual TQSpacerItem *spacerItem();
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int alignment() const { return align; }
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virtual void setAlignment( int a );
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protected:
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int align;
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};
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class TQ_EXPORT TQSpacerItem : public TQLayoutItem
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{
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public:
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TQSpacerItem( int w, int h,
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TQSizePolicy::SizeType hData = TQSizePolicy::Minimum,
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TQSizePolicy::SizeType vData = TQSizePolicy::Minimum )
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: width( w ), height( h ), sizeP( hData, vData ) { }
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void changeSize( int w, int h,
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TQSizePolicy::SizeType hData = TQSizePolicy::Minimum,
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TQSizePolicy::SizeType vData = TQSizePolicy::Minimum );
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TQSize sizeHint() const;
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TQSize minimumSize() const;
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TQSize maximumSize() const;
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TQSizePolicy::ExpandData expanding() const;
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bool isEmpty() const;
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void setGeometry( const TQRect& );
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TQRect geometry() const;
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TQSpacerItem *spacerItem();
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private:
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int width;
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int height;
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TQSizePolicy sizeP;
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TQRect rect;
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};
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class TQ_EXPORT TQWidgetItem : public TQLayoutItem
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{
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public:
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TQWidgetItem( TQWidget *w ) : wid( w ) { }
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TQSize sizeHint() const;
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TQSize minimumSize() const;
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TQSize maximumSize() const;
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TQSizePolicy::ExpandData expanding() const;
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bool isEmpty() const;
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void setGeometry( const TQRect& );
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TQRect geometry() const;
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virtual TQWidget *widget();
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bool hasHeightForWidth() const;
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int heightForWidth( int ) const;
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private:
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TQWidget *wid;
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};
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class TQ_EXPORT TQLayout : public TQObject, public TQLayoutItem
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{
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TQ_OBJECT
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TQ_ENUMS( ResizeMode )
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TQ_PROPERTY( int margin READ margin WRITE setMargin )
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TQ_PROPERTY( int spacing READ spacing WRITE setSpacing )
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TQ_PROPERTY( ResizeMode resizeMode READ resizeMode WRITE setResizeMode )
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public:
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// ### TQt 4.0: put 'Auto' first in enum
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enum ResizeMode { FreeResize, Minimum, Fixed, Auto };
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TQLayout( TQWidget *parent, int margin = 0, int spacing = -1,
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const char *name = 0 );
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TQLayout( TQLayout *parentLayout, int spacing = -1, const char *name = 0 );
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TQLayout( int spacing = -1, const char *name = 0 );
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~TQLayout();
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int margin() const { return outsideBorder; }
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int spacing() const { return insideSpacing; }
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virtual void setMargin( int );
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virtual void setSpacing( int );
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int defaultBorder() const { return insideSpacing; }
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void freeze( int w, int h );
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void freeze() { setResizeMode( Fixed ); }
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void setResizeMode( ResizeMode );
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ResizeMode resizeMode() const;
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#ifndef TQT_NO_MENUBAR
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virtual void setMenuBar( TQMenuBar *w );
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TQMenuBar *menuBar() const { return menubar; }
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#endif
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TQWidget *mainWidget();
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bool isTopLevel() const { return topLevel; }
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virtual void setAutoAdd( bool );
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bool autoAdd() const { return autoNewChild; }
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void invalidate();
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TQRect geometry() const;
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bool activate();
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void add( TQWidget *w ) { addItem( new TQWidgetItem(w) ); }
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virtual void addItem( TQLayoutItem * ) = 0;
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void remove( TQWidget *w );
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void removeItem( TQLayoutItem * );
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TQSizePolicy::ExpandData expanding() const;
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TQSize minimumSize() const;
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TQSize maximumSize() const;
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void setGeometry( const TQRect& ) = 0;
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TQLayoutIterator iterator() = 0;
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bool isEmpty() const;
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int totalHeightForWidth( int w ) const;
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TQSize totalMinimumSize() const;
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TQSize totalMaximumSize() const;
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TQSize totalSizeHint() const;
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TQLayout *layout();
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bool supportsMargin() const { return marginImpl; }
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void setEnabled( bool );
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bool isEnabled() const;
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protected:
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bool eventFilter( TQObject *, TQEvent * );
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void childEvent( TQChildEvent *e );
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void addChildLayout( TQLayout *l );
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void deleteAllItems();
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void setSupportsMargin( bool );
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TQRect alignmentRect( const TQRect& ) const;
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private:
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void setWidgetLayout( TQWidget *, TQLayout * );
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void init();
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int insideSpacing;
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int outsideBorder;
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uint topLevel : 1;
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uint enabled : 1;
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uint autoNewChild : 1;
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uint frozen : 1;
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uint activated : 1;
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uint marginImpl : 1;
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uint autoMinimum : 1;
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uint autoResizeMode : 1;
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TQRect rect;
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TQLayoutData *extraData;
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#ifndef TQT_NO_MENUBAR
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TQMenuBar *menubar;
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#endif
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private:
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#if defined(TQ_DISABLE_COPY)
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TQLayout( const TQLayout & );
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TQLayout &operator=( const TQLayout & );
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#endif
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static void propagateSpacing( TQLayout *layout );
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};
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inline void TQLayoutIterator::deleteCurrent()
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{
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delete takeCurrent();
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}
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class TQ_EXPORT TQGridLayout : public TQLayout
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{
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TQ_OBJECT
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public:
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TQGridLayout( TQWidget *parent, int nRows = 1, int nCols = 1, int border = 0,
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int spacing = -1, const char *name = 0 );
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TQGridLayout( int nRows = 1, int nCols = 1, int spacing = -1,
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const char *name = 0 );
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TQGridLayout( TQLayout *parentLayout, int nRows = 1, int nCols = 1,
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int spacing = -1, const char *name = 0 );
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~TQGridLayout();
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TQSize sizeHint() const;
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TQSize minimumSize() const;
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TQSize maximumSize() const;
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// ### remove 'virtual' in 4.0 (or add 'virtual' to set{Row,Col}Spacing())
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virtual void setRowStretch( int row, int stretch );
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virtual void setColStretch( int col, int stretch );
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int rowStretch( int row ) const;
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int colStretch( int col ) const;
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void setRowSpacing( int row, int minSize );
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void setColSpacing( int col, int minSize );
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int rowSpacing( int row ) const;
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int colSpacing( int col ) const;
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int numRows() const;
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int numCols() const;
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TQRect cellGeometry( int row, int col ) const;
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bool hasHeightForWidth() const;
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int heightForWidth( int ) const;
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int minimumHeightForWidth( int ) const;
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TQSizePolicy::ExpandData expanding() const;
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void invalidate();
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void addItem( TQLayoutItem * );
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void addItem( TQLayoutItem *item, int row, int col );
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void addMultiCell( TQLayoutItem *, int fromRow, int toRow,
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int fromCol, int toCol, int align = 0 );
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void addWidget( TQWidget *, int row, int col, int align = 0 );
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void addMultiCellWidget( TQWidget *, int fromRow, int toRow,
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int fromCol, int toCol, int align = 0 );
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void addLayout( TQLayout *layout, int row, int col);
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void addMultiCellLayout( TQLayout *layout, int fromRow, int toRow,
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int fromCol, int toCol, int align = 0 );
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void addRowSpacing( int row, int minsize );
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void addColSpacing( int col, int minsize );
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void expand( int rows, int cols );
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enum Corner { TopLeft, TopRight, BottomLeft, BottomRight };
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void setOrigin( Corner );
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Corner origin() const;
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TQLayoutIterator iterator();
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void setGeometry( const TQRect& );
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protected:
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bool findWidget( TQWidget* w, int *r, int *c );
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void add( TQLayoutItem*, int row, int col );
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private:
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#if defined(TQ_DISABLE_COPY)
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TQGridLayout( const TQGridLayout & );
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TQGridLayout &operator=( const TQGridLayout & );
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#endif
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void init( int rows, int cols );
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TQGridLayoutData *data;
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};
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class TQBoxLayoutData;
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class TQDockWindow;
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class TQ_EXPORT TQBoxLayout : public TQLayout
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{
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TQ_OBJECT
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public:
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enum Direction { LeftToRight, RightToLeft, TopToBottom, BottomToTop,
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Down = TopToBottom, Up = BottomToTop };
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TQBoxLayout( TQWidget *parent, Direction, int border = 0, int spacing = -1,
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const char *name = 0 );
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TQBoxLayout( TQLayout *parentLayout, Direction, int spacing = -1,
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const char *name = 0 );
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TQBoxLayout( Direction, int spacing = -1, const char *name = 0 );
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~TQBoxLayout();
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void addItem( TQLayoutItem * );
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Direction direction() const { return dir; }
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void setDirection( Direction );
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void addSpacing( int size );
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void addStretch( int stretch = 0 );
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void addWidget( TQWidget *, int stretch = 0, int alignment = 0 );
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void addLayout( TQLayout *layout, int stretch = 0 );
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void addStrut( int );
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void insertSpacing( int index, int size );
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void insertStretch( int index, int stretch = 0 );
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void insertWidget( int index, TQWidget *widget, int stretch = 0,
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int alignment = 0 );
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void insertLayout( int index, TQLayout *layout, int stretch = 0 );
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bool setStretchFactor( TQWidget*, int stretch );
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bool setStretchFactor( TQLayout *l, int stretch );
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TQSize sizeHint() const;
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TQSize minimumSize() const;
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TQSize maximumSize() const;
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bool hasHeightForWidth() const;
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int heightForWidth( int ) const;
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int minimumHeightForWidth( int ) const;
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TQSizePolicy::ExpandData expanding() const;
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void invalidate();
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TQLayoutIterator iterator();
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void setGeometry( const TQRect& );
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int findWidget( TQWidget* w );
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protected:
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void insertItem( int index, TQLayoutItem * );
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private:
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friend class TQDockWindow;
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#if defined(TQ_DISABLE_COPY)
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TQBoxLayout( const TQBoxLayout & );
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TQBoxLayout &operator=( const TQBoxLayout & );
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#endif
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void setupGeom();
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void calcHfw( int );
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TQBoxLayoutData *data;
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Direction dir;
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TQBoxLayout *createTmpCopy();
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};
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class TQ_EXPORT TQHBoxLayout : public TQBoxLayout
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{
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TQ_OBJECT
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public:
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TQHBoxLayout( TQWidget *parent, int border = 0,
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int spacing = -1, const char *name = 0 );
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TQHBoxLayout( TQLayout *parentLayout,
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int spacing = -1, const char *name = 0 );
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TQHBoxLayout( int spacing = -1, const char *name = 0 );
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~TQHBoxLayout();
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private: // Disabled copy constructor and operator=
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#if defined(TQ_DISABLE_COPY)
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TQHBoxLayout( const TQHBoxLayout & );
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TQHBoxLayout &operator=( const TQHBoxLayout & );
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#endif
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};
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class TQ_EXPORT TQVBoxLayout : public TQBoxLayout
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{
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TQ_OBJECT
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public:
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TQVBoxLayout( TQWidget *parent, int border = 0,
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int spacing = -1, const char *name = 0 );
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TQVBoxLayout( TQLayout *parentLayout,
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int spacing = -1, const char *name = 0 );
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TQVBoxLayout( int spacing = -1, const char *name = 0 );
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~TQVBoxLayout();
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private: // Disabled copy constructor and operator=
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#if defined(TQ_DISABLE_COPY)
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TQVBoxLayout( const TQVBoxLayout & );
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TQVBoxLayout &operator=( const TQVBoxLayout & );
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#endif
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};
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#endif // TQT_NO_LAYOUT
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#endif // TQLAYOUT_H
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