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Gui: add ViewParams class

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A convenience class to obtain common view parameters, analogous to
existing WindowParameter class.
This commit is contained in:
Zheng, Lei
2019-06-21 16:34:23 +08:00
committed by wmayer
parent a75c955d32
commit 2c12e1d3af
4 changed files with 147 additions and 2 deletions
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61
src/Gui/ViewParams.cpp Normal file
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/****************************************************************************
* Copyright (c) 2018 Zheng, Lei (realthunder) <realthunder.dev@gmail.com>*
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library 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 Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
****************************************************************************/
#include "PreCompiled.h"
#include <App/Application.h>
#include "ViewParams.h"
using namespace Gui;
ViewParams::ViewParams() {
handle = App::GetApplication().GetParameterGroupByPath(
"User parameter:BaseApp/Preferences/View");
handle->Attach(this);
#undef FC_VIEW_PARAM
#define FC_VIEW_PARAM(_name,_ctype,_type,_def) \
_name = handle->Get##_type(#_name,_def);
FC_VIEW_PARAMS
}
ViewParams::~ViewParams() {
}
void ViewParams::OnChange(Base::Subject<const char*> &, const char* sReason) {
if(!sReason)
return;
#undef FC_VIEW_PARAM
#define FC_VIEW_PARAM(_name,_ctype,_type,_def) \
if(strcmp(sReason,#_name)==0) {\
_name = handle->Get##_type(#_name,_def);\
return;\
}
FC_VIEW_PARAMS
}
ViewParams *ViewParams::instance() {
static ViewParams *inst;
if(!inst)
inst = new ViewParams;
return inst;
}