Files
create/src/Gui/View.cpp
2011-10-10 13:44:52 +00:00

100 lines
3.2 KiB
C++

/***************************************************************************
* Copyright (c) 2004 Jürgen Riegel <juergen.riegel@web.de> *
* *
* 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 "View.h"
#include "Document.h"
#include "Application.h"
using namespace Gui;
//**************************************************************************
// BaseView
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
TYPESYSTEM_SOURCE_ABSTRACT(Gui::BaseView,Base::BaseClass);
BaseView::BaseView( Gui::Document* pcDocument)
:_pcDocument(pcDocument), bIsDetached(false)
{
if (pcDocument){
pcDocument->attachView(this);
bIsPassive = false;
}
else{
Application::Instance->attachView(this);
bIsPassive = true;
}
}
BaseView::~BaseView()
{
onClose();
}
void BaseView::onClose(void)
{
if (bIsDetached)
return;
if (bIsPassive) {
Application::Instance->detachView(this);
if (_pcDocument)
_pcDocument->detachView(this, true);
}
else {
if (_pcDocument)
_pcDocument->detachView(this);
}
_pcDocument = 0;
bIsDetached = true;
}
void BaseView::deleteSelf()
{
delete this;
}
void BaseView::setDocument(Gui::Document* pcDocument)
{
if (_pcDocument == pcDocument)
return;
// detaches and attaches the observer
if (_pcDocument)
_pcDocument->detachView(this, true);
if (pcDocument)
pcDocument->attachView(this,true);
// set the new document as the active one
_pcDocument = pcDocument;
}
/// returns the document the view is attached to
App::Document* BaseView::getAppDocument() const
{
return _pcDocument ? _pcDocument->getDocument() : 0;
}