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143 lines
3.8 KiB
143 lines
3.8 KiB
/***************************************************************************
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* This file is part of the KDE project
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* copyright (C) 2005 by Sebastian Sauer (mail@dipe.org)
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* copyright (C) 2005 by Tobi Krebs (tobi.krebs@gmail.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (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 GNU
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* Library General Public License for more details.
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* You should have received a copy of the GNU Library General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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***************************************************************************/
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#ifndef KOMACRO_CONTEXT_H
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#define KOMACRO_CONTEXT_H
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#include <tqobject.h>
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#include <ksharedptr.h>
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#include "variable.h"
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namespace KoMacro {
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// Forward declaration.
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class Macro;
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class MacroItem;
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class Action;
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class Exception;
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/**
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* The context of an execution. If a @a Macro got executed it creates
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* an instance of this class and passes it around all it's tqchildren
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* as local execution context.
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*/
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class KOMACRO_EXPORT Context
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: public TQObject
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, public KShared
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{
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Q_OBJECT
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TQ_OBJECT
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public:
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/**
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* Constructor.
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*
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* @param macro The @a Macro this @a Context belongs to.
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*/
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explicit Context(KSharedPtr<Macro> macro);
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/**
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* Destructor.
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*/
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~Context();
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/**
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* @return true if there exists a variable with name @p name
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* else false got returned.
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*/
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bool hasVariable(const TQString& name) const;
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/**
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* @return the @a Variable defined with name @p name or
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* NULL if there exists no such variable.
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*/
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KSharedPtr<Variable> variable(const TQString& name) const;
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/**
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* @return a map of all @a Variable instance that are defined
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* within this context.
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*/
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Variable::Map variables() const;
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/**
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* Set the variable @p variable defined with name @p name . If
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* there exists already a variable with that name replace it.
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*/
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void setVariable(const TQString& name, KSharedPtr<Variable> variable);
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/**
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* @return the associated macro
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*/
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KSharedPtr<Macro> macro() const;
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/**
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* @return the currently selected @a MacroItem instance
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* or NULL if there is no @a MacroItem selected yet.
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*/
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KSharedPtr<MacroItem> macroItem() const;
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/**
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* @return true if the last @a activate() stopped with an
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* exception else false is returned.
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*/
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bool hadException() const;
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/**
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* @return the @a Exception instance that was thrown on
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* the last call of @a activate() . If there was no
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* exception NULL is returned.
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*/
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Exception* exception() const;
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private slots:
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/**
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* A @a Context does take care of an execution-chain which
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* should be activated one after another. The @a Context
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* remembers what @a Action should be executed next and
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* calling this slot just activates those @a Action .
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*/
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virtual void activate(TQValueList<KSharedPtr <MacroItem> >::ConstIterator it);
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public slots:
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/**
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* This slot extends the slot above with the passed
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* @a Context @p context which will be used as
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* tqparent context for this context.
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*/
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virtual void activate(KSharedPtr<Context> context);
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/**
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* This slot continues execution.
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*/
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virtual void activateNext();
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private:
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/// @internal d-pointer class.
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class Private;
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/// @internal d-pointer instance.
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Private* const d;
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};
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}
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#endif
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