FreeCAD

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/****************************************************************************
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 *   Copyright (c) 2018 Zheng Lei (realthunder) <realthunder.dev@gmail.com> *
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 *                                                                          *
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 *   This file is part of the FreeCAD CAx development system.               *
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 *                                                                          *
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 *   This library 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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 *                                                                          *
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 *   This library  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 Library General Public License for more details.                   *
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 *                                                                          *
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 *   You should have received a copy of the GNU Library General Public      *
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 *   License along with this library; see the file COPYING.LIB. If not,     *
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 *   write to the Free Software Foundation, Inc., 59 Temple Place,          *
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 *   Suite 330, Boston, MA  02111-1307, USA                                 *
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 *                                                                          *
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 ****************************************************************************/
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#include "PreCompiled.h"
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#include <App/Application.h>
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#include "ViewParams.h"
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using namespace Gui;
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ViewParams::ViewParams() {
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    handle = App::GetApplication().GetParameterGroupByPath(
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            "User parameter:BaseApp/Preferences/View");
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    handle->Attach(this);
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#undef FC_VIEW_PARAM
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#define FC_VIEW_PARAM(_name,_ctype,_type,_def) \
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    _name = handle->Get##_type(#_name,_def);
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    FC_VIEW_PARAMS
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}
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ViewParams::~ViewParams() = default;
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void ViewParams::OnChange(Base::Subject<const char*> &, const char* sReason) {
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    if(!sReason)
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        return;
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#undef FC_VIEW_PARAM
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#define FC_VIEW_PARAM(_name,_ctype,_type,_def) \
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    if(strcmp(sReason,#_name)==0) {\
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        _name = handle->Get##_type(#_name,_def);\
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        return;\
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    }
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    FC_VIEW_PARAMS
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}
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ViewParams *ViewParams::instance() {
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    static ViewParams *inst;
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    if(!inst)
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        inst = new ViewParams;
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    return inst;
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}
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