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/*
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This file is part of Kig, a KDE program for Interactive Geometry...
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Copyright (C) 2002 Dominique Devriese <devriese@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
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USA
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*/
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#ifndef KIG_COMMANDS_H
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#define KIG_COMMANDS_H
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#include <kcommand.h>
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#include <klocale.h>
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#include <kdebug.h>
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#include "../objects/object_holder.h"
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class KigDocument;
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class KigPart;
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class CoordinateSystem;
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class KigCommandTask;
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class KigWidget;
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class Rect;
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/**
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* a KigCommand represents almost every action performed in Kig.
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* Used mainly in the Undo/Redo stuff...
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*/
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class KigCommand
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: public TQObject, public KNamedCommand
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{
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Q_OBJECT
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TQ_OBJECT
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class Private;
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Private* d;
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public:
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KigCommand( KigPart& inDoc, const TQString& name );
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~KigCommand();
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/**
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* To avoid confusion, this doesn't add a command to anything, this
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* creates an AddCommand ;)
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*/
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static KigCommand* addCommand( KigPart& doc, const std::vector<ObjectHolder*>& os );
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static KigCommand* addCommand( KigPart& doc, ObjectHolder* os );
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/**
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* make sure that when you delete something, you are also deleting
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* its parents. This class assumes you've done that.
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* \ref KigDocument::delObjects() takes care of this for you.
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*/
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static KigCommand* removeCommand( KigPart& doc, const std::vector<ObjectHolder*>& os );
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static KigCommand* removeCommand( KigPart& doc, ObjectHolder* o );
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static KigCommand* changeCoordSystemCommand( KigPart& doc, CoordinateSystem* s );
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void addTask( KigCommandTask* );
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void execute();
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void unexecute();
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};
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class KigCommandTask
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{
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public:
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KigCommandTask();
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virtual ~KigCommandTask();
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virtual void execute( KigPart& doc ) = 0;
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virtual void unexecute( KigPart& doc ) = 0;
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};
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class AddObjectsTask
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: public KigCommandTask
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{
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public:
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AddObjectsTask( const std::vector<ObjectHolder*>& os);
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~AddObjectsTask ();
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void execute( KigPart& doc );
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void unexecute( KigPart& doc );
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protected:
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bool undone;
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std::vector<ObjectHolder*> mobjs;
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};
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class RemoveObjectsTask
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: public AddObjectsTask
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{
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public:
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RemoveObjectsTask( const std::vector<ObjectHolder*>& os );
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void execute( KigPart& );
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void unexecute( KigPart& );
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};
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class ChangeObjectConstCalcerTask
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: public KigCommandTask
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{
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public:
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ChangeObjectConstCalcerTask( ObjectConstCalcer* calcer, ObjectImp* newimp );
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~ChangeObjectConstCalcerTask();
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void execute( KigPart& );
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void unexecute( KigPart& );
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protected:
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ObjectConstCalcer::shared_ptr mcalcer;
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ObjectImp* mnewimp;
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};
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/**
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* this class monitors a set of DataObjects for changes and returns an
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* appropriate ChangeObjectImpsCommand if necessary..
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* E.g. MovingMode wants to move certain objects, so it monitors all
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* the parents of the explicitly moving objects:
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* \code
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* MonitorDataObjects mon( getAllParents( emo ) );
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* \endcode
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* It then moves them around, and when it is finished, it asks to add
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* the KigCommandTasks to a KigCommand, and applies that..
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* \code
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* KigCommand* comm = new KigCommand( doc, i18n( "Move Stuff" ) );
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* mon.finish( comm );
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* \endcode
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*/
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class MonitorDataObjects
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{
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class Private;
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Private* d;
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public:
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/**
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* all the DataObjects in \p objs will be watched..
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*/
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MonitorDataObjects( const std::vector<ObjectCalcer*>& objs );
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MonitorDataObjects( ObjectCalcer* c );
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~MonitorDataObjects();
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/**
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* add \p objs to the list of objs to be watched, and save their
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* current imp's..
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*/
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void monitor( const std::vector<ObjectCalcer*>& objs );
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/**
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* add the generated KigCommandTasks to the command \p comm ..
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* monitoring stops after this is called..
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*/
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void finish( KigCommand* comm );
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};
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class ChangeCoordSystemTask
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: public KigCommandTask
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{
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CoordinateSystem* mcs;
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public:
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/**
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* a command that changes the coordinate-system to \p s ..
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*/
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ChangeCoordSystemTask( CoordinateSystem* s );
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~ChangeCoordSystemTask();
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void execute( KigPart& doc );
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void unexecute( KigPart& doc );
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};
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class ChangeParentsAndTypeTask
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: public KigCommandTask
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{
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class Private;
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Private* d;
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public:
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ChangeParentsAndTypeTask( ObjectTypeCalcer* o, const std::vector<ObjectCalcer*>& newparents,
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const ObjectType* newtype );
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~ChangeParentsAndTypeTask();
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void execute( KigPart& doc );
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void unexecute( KigPart& doc );
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};
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class KigViewShownRectChangeTask
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: public KigCommandTask
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{
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class Private;
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Private* d;
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public:
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KigViewShownRectChangeTask( KigWidget& v, const Rect& newrect );
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~KigViewShownRectChangeTask();
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void execute( KigPart& doc );
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void unexecute( KigPart& doc );
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};
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class ChangeObjectDrawerTask
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: public KigCommandTask
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{
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ObjectHolder* mholder;
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ObjectDrawer* mnewdrawer;
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public:
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ChangeObjectDrawerTask( ObjectHolder* holder, ObjectDrawer* newdrawer );
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~ChangeObjectDrawerTask();
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void execute( KigPart& doc );
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void unexecute( KigPart& doc );
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};
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#endif
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