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/****************************************************************************
**
** Implementing your own layout: flow example
**
** Copyright (C) 1996-2008 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "card.h"
class CardLayoutIterator :public TQGLayoutIterator
{
public:
CardLayoutIterator( TQPtrList<TQLayoutItem> *l )
: idx( 0 ), list( l ) {}
TQLayoutItem *current();
TQLayoutItem *next();
TQLayoutItem *takeCurrent();
private:
int idx;
TQPtrList<TQLayoutItem> *list;
};
TQLayoutItem *CardLayoutIterator::current()
{
return idx < int( list->count() ) ? list->at( idx ) : 0;
}
TQLayoutItem *CardLayoutIterator::next()
{
idx++; return current();
}
TQLayoutItem *CardLayoutIterator::takeCurrent()
{
return idx < int( list->count() ) ?list->take( idx ) : 0;
}
TQLayoutIterator CardLayout::iterator()
{
return TQLayoutIterator( new CardLayoutIterator( &list ) );
}
CardLayout::~CardLayout()
{
deleteAllItems();
}
void CardLayout::addItem( TQLayoutItem *item )
{
list.append( item );
}
void CardLayout::setGeometry( const TQRect &rct )
{
TQLayout::setGeometry( rct );
TQPtrListIterator<TQLayoutItem> it( list );
if ( it.count() == 0 )
return;
TQLayoutItem *o;
int i = 0;
int w = rct.width() - ( list.count() - 1 ) * spacing();
int h = rct.height() - ( list.count() - 1 ) * spacing();
while ( ( o=it.current() ) != 0 ) {
++it;
TQRect geom( rct.x() + i * spacing(), rct.y() + i * spacing(),
w, h );
o->setGeometry( geom );
++i;
}
}
TQSize CardLayout::sizeHint() const
{
TQSize s(0,0);
int n = list.count();
if ( n > 0 )
s = TQSize(100,70); //start with a nice default size
TQPtrListIterator<TQLayoutItem> it(list);
TQLayoutItem *o;
while ( (o=it.current()) != 0 ) {
++it;
s = s.expandedTo( o->minimumSize() );
}
return s + n*TQSize(spacing(),spacing());
}
TQSize CardLayout::minimumSize() const
{
TQSize s(0,0);
int n = list.count();
TQPtrListIterator<TQLayoutItem> it(list);
TQLayoutItem *o;
while ( (o=it.current()) != 0 ) {
++it;
s = s.expandedTo( o->minimumSize() );
}
return s + n*TQSize(spacing(),spacing());
}
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