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89 lines
2.6 KiB
89 lines
2.6 KiB
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2019-2020 KiCad Developers, see AUTHORS.txt for contributors.
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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 General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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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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*
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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, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef KIWAY_HOLDER_H_
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#define KIWAY_HOLDER_H_
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class KIWAY;
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class PROJECT;
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class wxWindow;
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/**
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* A mix in class which holds the location of a wxWindow's KIWAY.
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*
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* It allows calls to Kiway() and SetKiway().
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*/
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class KIWAY_HOLDER
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{
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public:
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enum HOLDER_TYPE { DIALOG, FRAME, PANEL };
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KIWAY_HOLDER( KIWAY* aKiway, HOLDER_TYPE aType ) :
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m_kiway( aKiway ),
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m_type( aType )
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{}
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HOLDER_TYPE GetType() const { return m_type; }
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/**
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* Return a reference to the #KIWAY that this object has an opportunity to participate in.
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*
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* A KIWAY_HOLDER is not necessarily a KIWAY_PLAYER.
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*/
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KIWAY& Kiway() const
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{
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wxASSERT( m_kiway ); // smoke out bugs in Debug build, then Release runs fine.
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return *m_kiway;
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}
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/**
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* Safety check before asking for the Kiway reference
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* @return true if kiway is non-null
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*/
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bool HasKiway() const
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{
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return m_kiway != nullptr;
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}
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/**
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* Return a reference to the #PROJECT associated with this #KIWAY.
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*/
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PROJECT& Prj() const;
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/**
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* It is only used for debugging, since "this" is not a wxWindow*. "this" is
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* a KIWAY_HOLDER mix-in.
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*
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* @param aDest is the recipient of \a aKiway pointer.
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* @param aKiway is often from a parent window or from #KIFACE::CreateKiWindow().
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*/
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void SetKiway( wxWindow* aDest, KIWAY* aKiway );
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private:
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// private, all setting is done through SetKiway().
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KIWAY* m_kiway; // no ownership.
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HOLDER_TYPE m_type;
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};
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#endif // KIWAY_HOLDER_H_
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