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/*
This file is part of Kig, a KDE program for Interactive Geometry...
Copyright (C) 2002 Dominique Devriese <devriese@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
USA
*/
#ifndef KIG_COMMANDS_H
#define KIG_COMMANDS_H
#include <kcommand.h>
#include <klocale.h>
#include <kdebug.h>
#include "../objects/object_holder.h"
class KigDocument;
class KigPart;
class CoordinateSystem;
class KigCommandTask;
class KigWidget;
class Rect;
/**
* a KigCommand represents almost every action performed in Kig.
* Used mainly in the Undo/Redo stuff...
*/
class KigCommand
: public TQObject, public KNamedCommand
{
Q_OBJECT
TQ_OBJECT
class Private;
Private* d;
public:
KigCommand( KigPart& inDoc, const TQString& name );
~KigCommand();
/**
* To avoid confusion, this doesn't add a command to anything, this
* creates an AddCommand ;)
*/
static KigCommand* addCommand( KigPart& doc, const std::vector<ObjectHolder*>& os );
static KigCommand* addCommand( KigPart& doc, ObjectHolder* os );
/**
* make sure that when you delete something, you are also deleting
* its parents. This class assumes you've done that.
* \ref KigDocument::delObjects() takes care of this for you.
*/
static KigCommand* removeCommand( KigPart& doc, const std::vector<ObjectHolder*>& os );
static KigCommand* removeCommand( KigPart& doc, ObjectHolder* o );
static KigCommand* changeCoordSystemCommand( KigPart& doc, CoordinateSystem* s );
void addTask( KigCommandTask* );
void execute();
void unexecute();
};
class KigCommandTask
{
public:
KigCommandTask();
virtual ~KigCommandTask();
virtual void execute( KigPart& doc ) = 0;
virtual void unexecute( KigPart& doc ) = 0;
};
class AddObjectsTask
: public KigCommandTask
{
public:
AddObjectsTask( const std::vector<ObjectHolder*>& os);
~AddObjectsTask ();
void execute( KigPart& doc );
void unexecute( KigPart& doc );
protected:
bool undone;
std::vector<ObjectHolder*> mobjs;
};
class RemoveObjectsTask
: public AddObjectsTask
{
public:
RemoveObjectsTask( const std::vector<ObjectHolder*>& os );
void execute( KigPart& );
void unexecute( KigPart& );
};
class ChangeObjectConstCalcerTask
: public KigCommandTask
{
public:
ChangeObjectConstCalcerTask( ObjectConstCalcer* calcer, ObjectImp* newimp );
~ChangeObjectConstCalcerTask();
void execute( KigPart& );
void unexecute( KigPart& );
protected:
ObjectConstCalcer::shared_ptr mcalcer;
ObjectImp* mnewimp;
};
/**
* this class monitors a set of DataObjects for changes and returns an
* appropriate ChangeObjectImpsCommand if necessary..
* E.g. MovingMode wants to move certain objects, so it monitors all
* the parents of the explicitly moving objects:
* \code
* MonitorDataObjects mon( getAllParents( emo ) );
* \endcode
* It then moves them around, and when it is finished, it asks to add
* the KigCommandTasks to a KigCommand, and applies that..
* \code
* KigCommand* comm = new KigCommand( doc, i18n( "Move Stuff" ) );
* mon.finish( comm );
* \endcode
*/
class MonitorDataObjects
{
class Private;
Private* d;
public:
/**
* all the DataObjects in \p objs will be watched..
*/
MonitorDataObjects( const std::vector<ObjectCalcer*>& objs );
MonitorDataObjects( ObjectCalcer* c );
~MonitorDataObjects();
/**
* add \p objs to the list of objs to be watched, and save their
* current imp's..
*/
void monitor( const std::vector<ObjectCalcer*>& objs );
/**
* add the generated KigCommandTasks to the command \p comm ..
* monitoring stops after this is called..
*/
void finish( KigCommand* comm );
};
class ChangeCoordSystemTask
: public KigCommandTask
{
CoordinateSystem* mcs;
public:
/**
* a command that changes the coordinate-system to \p s ..
*/
ChangeCoordSystemTask( CoordinateSystem* s );
~ChangeCoordSystemTask();
void execute( KigPart& doc );
void unexecute( KigPart& doc );
};
class ChangeParentsAndTypeTask
: public KigCommandTask
{
class Private;
Private* d;
public:
ChangeParentsAndTypeTask( ObjectTypeCalcer* o, const std::vector<ObjectCalcer*>& newparents,
const ObjectType* newtype );
~ChangeParentsAndTypeTask();
void execute( KigPart& doc );
void unexecute( KigPart& doc );
};
class KigViewShownRectChangeTask
: public KigCommandTask
{
class Private;
Private* d;
public:
KigViewShownRectChangeTask( KigWidget& v, const Rect& newrect );
~KigViewShownRectChangeTask();
void execute( KigPart& doc );
void unexecute( KigPart& doc );
};
class ChangeObjectDrawerTask
: public KigCommandTask
{
ObjectHolder* mholder;
ObjectDrawer* mnewdrawer;
public:
ChangeObjectDrawerTask( ObjectHolder* holder, ObjectDrawer* newdrawer );
~ChangeObjectDrawerTask();
void execute( KigPart& doc );
void unexecute( KigPart& doc );
};
#endif
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