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libreoffice/framework/source/inc/accelerators/acceleratorcache.hxx
2011-03-29 21:40:28 +01:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#ifndef __FRAMEWORK_ACCELERATORS_ACCELERATORCACHE_HXX_
#define __FRAMEWORK_ACCELERATORS_ACCELERATORCACHE_HXX_
//__________________________________________
// own includes
#include <threadhelp/threadhelpbase.hxx>
#include <general.h>
#include <stdtypes.h>
//__________________________________________
// interface includes
#include <com/sun/star/awt/KeyEvent.hpp>
//__________________________________________
// other includes
#include <comphelper/sequenceasvector.hxx>
//__________________________________________
// definition
namespace framework
{
//__________________________________________
/**
@short implements a cache for any accelerator configuration.
@descr Its implemented threadsafe, supports copy-on-write pattern
and a flush mechansim to support concurrent access to the same
configuration.
copy-on-write ... How? Do the following:
*/
class AcceleratorCache : public ThreadHelpBase // attention! Must be the first base class to guarentee right initialize lock ...
{
//______________________________________
// const, types
public:
//---------------------------------------
/** TODO document me
commands -> keys
*/
typedef ::comphelper::SequenceAsVector< css::awt::KeyEvent > TKeyList;
typedef BaseHash< TKeyList > TCommand2Keys;
//---------------------------------------
/** TODO document me
keys -> commands
*/
typedef ::boost::unordered_map< css::awt::KeyEvent ,
::rtl::OUString ,
KeyEventHashCode ,
KeyEventEqualsFunc > TKey2Commands;
//______________________________________
// member
private:
//---------------------------------------
/** map commands to keys in relation 1:n.
First key is interpreted as preferred one! */
TCommand2Keys m_lCommand2Keys;
//---------------------------------------
/** map keys to commands in relation 1:1. */
TKey2Commands m_lKey2Commands;
//______________________________________
// interface
public:
//---------------------------------------
/** @short creates a new - but empty - cache instance. */
AcceleratorCache();
//---------------------------------------
/** @short make a copy of this cache.
@descr Used for the copy-on-write feature.
*/
AcceleratorCache(const AcceleratorCache& rCopy);
//---------------------------------------
/** @short does nothing real. */
virtual ~AcceleratorCache();
//---------------------------------------
/** @short write changes back to the original container.
@param rCopy
the (changed!) copy, which should be written
back to this original container.
*/
virtual void takeOver(const AcceleratorCache& rCopy);
//---------------------------------------
/** TODO document me */
AcceleratorCache& operator=(const AcceleratorCache& rCopy);
//---------------------------------------
/** @short checks if the specified key exists.
@param aKey
the key, which should be checked.
@return [bool]
sal_True if the speicfied key exists inside this container.
*/
virtual sal_Bool hasKey(const css::awt::KeyEvent& aKey) const;
virtual sal_Bool hasCommand(const ::rtl::OUString& sCommand) const;
//---------------------------------------
/** TODO document me */
virtual TKeyList getAllKeys() const;
//---------------------------------------
/** @short add a new or change an existing key-command pair
of this container.
@param aKey
describe the key.
@param sCommand
describe the command.
*/
virtual void setKeyCommandPair(const css::awt::KeyEvent& aKey ,
const ::rtl::OUString& sCommand);
//---------------------------------------
/** @short returns the list of keys, which are registered
for this command.
@param sCommand
describe the command.
@return [TKeyList]
the list of registered keys. Can be empty!
*/
virtual TKeyList getKeysByCommand(const ::rtl::OUString& sCommand) const;
//---------------------------------------
/** TODO */
virtual ::rtl::OUString getCommandByKey(const css::awt::KeyEvent& aKey) const;
//---------------------------------------
/** TODO */
virtual void removeKey(const css::awt::KeyEvent& aKey);
virtual void removeCommand(const ::rtl::OUString& sCommand);
};
} // namespace framework
#endif // __FRAMEWORK_ACCELERATORS_ACCELERATORCACHE_HXX_
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