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//////////////////////////////////////////////////////////////////////////////
// oxygendatamap.h
// stores event filters and maps widgets to timelines for animations
// -------------------
//
// Copyright (c) 2009 Hugo Pereira Da Costa <hugo.pereira@free.fr>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//////////////////////////////////////////////////////////////////////////////
#ifndef __DATAMAP_H__
#define __DATAMAP_H__
//! data map
/*! it maps templatized data object to associated object */
template< typename K, typename T > class BaseDataMap: public QMap< const K*, QWeakPointer<T> >
{
public:
typedef const K* Key;
typedef QWeakPointer<T> Value;
//! constructor
BaseDataMap( void ):
QMap<Key, Value>(),
enabled_( true ),
lastKey_( NULL )
{}
//! destructor
virtual ~BaseDataMap( void )
{}
//! insertion
virtual typename QMap< Key, Value >::iterator insert( const Key& key, const Value& value, bool enabled = true )
{
if( value ) value.data()->setEnabled( enabled );
return QMap< Key, Value >::insert( key, value );
}
//! find value
Value find( Key key )
{
if( !( enabled() && key ) ) return Value();
if( key == lastKey_ ) return lastValue_;
else {
Value out;
typename QMap<Key, Value>::iterator iter( QMap<Key, Value>::find( key ) );
if( iter != QMap<Key, Value>::end() ) out = iter.value();
lastKey_ = key;
lastValue_ = out;
return out;
}
}
//! unregister widget
bool unregisterWidget( Key key )
{
// check key
if( !key ) return false;
// clear last value if needed
if( key == lastKey_ )
{
if( lastValue_ ) lastValue_.clear();
lastKey_ = NULL;
}
// find key in map
typename QMap<Key, Value>::iterator iter( QMap<Key, Value>::find( key ) );
if( iter == QMap<Key, Value>::end() ) return false;
// delete value from map if found
if( iter.value() ) iter.value().data()->deleteLater();
QMap<Key, Value>::erase( iter );
return true;
}
//! maxFrame
void setEnabled( bool enabled )
{
enabled_ = enabled;
foreach( const Value& value, *this )
{ if( value ) value.data()->setEnabled( enabled ); }
}
//! enability
bool enabled( void ) const
{ return enabled_; }
//! duration
void setDuration( int duration ) const
{
foreach( const Value& value, *this )
{ if( value ) value.data()->setDuration( duration ); }
}
private:
//! enability
bool enabled_;
//! last key
Key lastKey_;
//! last value
Value lastValue_;
};
//! standard data map, using QObject as a key
template< typename T > class DataMap: public BaseDataMap< QObject, T >
{
public:
//! constructor
DataMap( void )
{}
//! destructor
virtual ~DataMap( void )
{}
};
//! QPaintDevice based dataMap
template< typename T > class PaintDeviceDataMap: public BaseDataMap< QPaintDevice, T >
{
public:
//! constructor
PaintDeviceDataMap( void )
{}
//! destructor
virtual ~PaintDeviceDataMap( void )
{}
};
#endif
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