/* This file is part of the KDE libraries Copyright (C) 2001 Ellis Whitehead This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef _KACCELBASE_H #define _KACCELBASE_H #include #include #include #include #include #include "kaccelaction.h" #include "kkeyserver_x11.h" class TQPopupMenu; class TQWidget; //---------------------------------------------------- class KAccelBasePrivate; /** * Handle keyboard accelerators. * * Allow an user to configure * key bindings through application configuration files or through the * @ref KKeyChooser GUI. * * A @ref KAccel contains a list of accelerator items. Each accelerator item * consists of an action name and a keyboard code combined with modifiers * (Shift, Ctrl and Alt.) * * For example, "Ctrl+P" could be a shortcut for printing a document. The key * codes are listed in ckey.h. "Print" could be the action name for printing. * The action name identifies the key binding in configuration files and the * @ref KKeyChooser GUI. * * When pressed, an accelerator key calls the slot to which it has been * connected. Accelerator items can be connected so that a key will activate * two different slots. * * A KAccel object handles key events sent to its parent widget and to all * children of this parent widget. * * Key binding reconfiguration during run time can be prevented by specifying * that an accelerator item is not configurable when it is inserted. A special * group of non-configurable key bindings are known as the * standard accelerators. * * The standard accelerators appear repeatedly in applications for * standard document actions such as printing and saving. Convenience methods are * available to insert and connect these accelerators which are configurable on * a desktop-wide basis. * * It is possible for a user to choose to have no key associated with * an action. * * The translated first argument for @ref insertItem() is used only * in the configuration dialog. *
 * KAccel *a = new KAccel( myWindow );
 * // Insert an action "Scroll Up" which is associated with the "Up" key:
 * a->insertItem( i18n("Scroll up"), "Scroll Up", "Up" );
 * // Insert an action "Scroll Down" which is not associated with any key:
 * a->insertItem( i18n("Scroll down"), "Scroll Down", 0);
 * a->connectItem( "Scroll up", myWindow, TQT_SLOT( scrollUp() ) );
 * // a->insertStdItem( KStdAccel::Print ); //not necessary, since it
 *	// is done automatially with the
 *	// connect below!
 * a->connectItem(KStdAccel::Print, myWindow, TQT_SLOT( printDoc() ) );
 *
 * a->readSettings();
 *
* * If a shortcut has a menu entry as well, you could insert them like * this. The example is again the @ref KStdAccel::Print from above. * * 
 * int id;
 * id = popup->insertItem("&Print",this, TQT_SLOT(printDoc()));
 * a->changeMenuAccel(popup, id, KStdAccel::Print );
 *
* * If you want a somewhat "exotic" name for your standard print action, like * id = popup->insertItem(i18n("Print &Document"),this, TQT_SLOT(printDoc())); * it might be a good idea to insert the standard action before as * a->insertStdItem( KStdAccel::Print, i18n("Print Document") ) * as well, so that the user can easily find the corresponding function. * * This technique works for other actions as well. Your "scroll up" function * in a menu could be done with * * 
 *    id = popup->insertItem(i18n"Scroll &up",this, TQT_SLOT(scrollUp()));
 *    a->changeMenuAccel(popup, id, "Scroll Up" );
 *
* * Please keep the order right: First insert all functions in the * acceleratior, then call a -> @ref readSettings() and @em then build your * menu structure. * * @short Configurable key binding support. * @version $Id: kaccelbase.h,v 1.20 2002/03/03 21:20:25 lunakl Exp $ */ class KAccelBase { public: enum Init { QT_KEYS = 0x00, NATIVE_KEYS = 0x01 }; enum Signal { KEYCODE_CHANGED }; KAccelBase( int fInitCode ); virtual ~KAccelBase(); uint actionCount() const; KAccelActions& actions(); bool isEnabled() const; KAccelAction* actionPtr( const TQString& sAction ); const KAccelAction* actionPtr( const TQString& sAction ) const; KAccelAction* actionPtr( const KKey& key ); KAccelAction* actionPtr( const KKeyServer::Key& key ); const TQString& configGroup() const { return m_sConfigGroup; } void setConfigGroup( const TQString& group ); void setConfigGlobal( bool global ); virtual void setEnabled( bool bEnabled ) = 0; bool getAutoUpdate() { return m_bAutoUpdate; } // return value of AutoUpdate flag before this call. bool setAutoUpdate( bool bAuto ); // Procedures for manipulating Actions. //void clearActions(); KAccelAction* insert( const TQString& sName, const TQString& sDesc ); KAccelAction* insert( const TQString& sAction, const TQString& sDesc, const TQString& sHelp, const KShortcut& rgCutDefaults3, const KShortcut& rgCutDefaults4, const TQObject* pObjSlot, const char* psMethodSlot, bool bConfigurable = true, bool bEnabled = true ); bool remove( const TQString& sAction ); bool setActionSlot( const TQString& sAction, const TQObject* pObjSlot, const char* psMethodSlot ); bool updateConnections(); bool setShortcut( const TQString& sAction, const KShortcut& cut ); // Modify individual Action sub-items bool setActionEnabled( const TQString& sAction, bool bEnable ); /** * Read all key associations from @p config, or (if @p config * is zero) from the application's configuration file * @ref KGlobal::config(). * * The group in which the configuration is stored can be * set with @ref setConfigGroup(). */ void readSettings( KConfigBase* pConfig = 0 ); /** * Write the current configurable associations to @p config, * or (if @p config is zero) to the application's * configuration file. */ void writeSettings( KConfigBase* pConfig = 0 ) const; TQPopupMenu* createPopupMenu( TQWidget* pParent, const KKeySequence& ); // Protected methods protected: void slotRemoveAction( KAccelAction* ); void createKeyList( TQValueVector& rgKeys ); bool insertConnection( KAccelAction* ); bool removeConnection( KAccelAction* ); virtual bool emitSignal( Signal ) = 0; virtual bool connectKey( KAccelAction&, const KKeyServer::Key& ) = 0; virtual bool connectKey( const KKeyServer::Key& ) = 0; virtual bool disconnectKey( KAccelAction&, const KKeyServer::Key& ) = 0; virtual bool disconnectKey( const KKeyServer::Key& ) = 0; protected: struct ActionInfo { KAccelAction* pAction; uint iSeq, iVariation; //ActionInfo* pInfoNext; // nil if only one action uses this key. ActionInfo() { pAction = 0; iSeq = 0xffff; iVariation = 0xffff; } ActionInfo( KAccelAction* _pAction, uint _iSeq, uint _iVariation ) { pAction = _pAction; iSeq = _iSeq; iVariation = _iVariation; } }; typedef TQMap KKeyToActionMap; KAccelActions m_rgActions; KKeyToActionMap m_mapKeyToAction; TQValueList m_rgActionsNonUnique; bool m_bNativeKeys; // Use native key codes instead of Qt codes bool m_bEnabled; bool m_bConfigIsGlobal; TQString m_sConfigGroup; bool m_bAutoUpdate; KAccelAction* mtemp_pActionRemoving; private: KAccelBase& operator =( const KAccelBase& ); friend class KAccelActions; protected: virtual void virtual_hook( int id, void* data ); private: KAccelBasePrivate* d; }; #endif // _KACCELBASE_H