Core: Gui: DAGView: skeleton implemented

Need to enable through parameter BaseApp/Preferences/DAGView

src/Gui/DAGView/DAGView.cpp

@@ -0,0 +1,117 @@
+/***************************************************************************
+ *   Copyright (c) 2015 Thomas Anderson <blobfish[at]gmx.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"
+#ifndef _PreComp_
+#include <QAbstractEventDispatcher>
+#include <QVBoxLayout>
+#endif
+
+#include <sstream>
+
+#include <Base/Console.h>
+
+#include <App/Document.h>
+#include <Gui/Document.h>
+#include <Gui/Application.h>
+
+#include "DAGModel.h"
+#include "DAGView.h"
+
+using namespace Gui;
+using namespace DAG;
+
+DAG::DockWindow::DockWindow(Gui::Document* gDocumentIn, QWidget* parent): Gui::DockWindow(gDocumentIn, parent)
+{
+  dagView = new View(this);
+  QVBoxLayout *layout = new QVBoxLayout();
+  layout->addWidget(dagView);
+  this->setLayout(layout);
+}
+
+View::View(QWidget* parentIn): QGraphicsView(parentIn)
+{
+  Application::Instance->signalActiveDocument.connect(boost::bind(&View::slotActiveDocument, this, _1));
+  Application::Instance->signalDeleteDocument.connect(boost::bind(&View::slotDeleteDocument, this, _1));
+  
+  //just update the dagview when the gui process is idle.
+  connect(QAbstractEventDispatcher::instance(), SIGNAL(awake()), this, SLOT(awakeSlot()));
+}
+
+View::~View()
+{
+  Application::Instance->signalActiveDocument.disconnect(boost::bind(&View::slotActiveDocument, this, _1));
+  Application::Instance->signalDeleteDocument.disconnect(boost::bind(&View::slotDeleteDocument, this, _1));
+}
+
+void View::slotActiveDocument(const Document &documentIn)
+{
+  ModelMap::const_iterator it = modelMap.find(&documentIn);
+  if (it == modelMap.end())
+  {
+    ModelMap::value_type entry(std::make_pair(&documentIn, std::shared_ptr<Model>(new Model(this, documentIn))));
+    modelMap.insert(entry);
+    this->setScene(entry.second.get());
+  }
+  else
+  {
+    this->setScene(it->second.get());
+  }
+}
+
+void View::slotDeleteDocument(const Document &documentIn)
+{
+  ModelMap::iterator it = modelMap.find(&documentIn);
+  if (it != modelMap.end())
+    modelMap.erase(it);
+}
+
+void View::awakeSlot()
+{
+  Model *model = dynamic_cast<Model *>(this->scene());
+  if (model)
+    model->awake();
+}
+
+void View::onSelectionChanged(const SelectionChanges& msg)
+{
+  //dispatch to appropriate document.
+  ModelMap::iterator it;
+  for (auto it = modelMap.begin(); it != modelMap.end(); ++it)
+  {
+    if (std::string(it->first->getDocument()->getName()) == std::string(msg.pDocName))
+    {
+      it->second->selectionChanged(msg);
+      return;
+    }
+  }
+  
+  //why am I getting a spontanous event with an empty name?
+  std::ostringstream stream;
+  stream << std::endl << "couldn't find document of name: " << std::string(msg.pDocName) << std::endl << std::endl;
+  Base::Console().Warning(stream.str().c_str());
+//   assert(0); //no document of name.
+}
+
+
+
+#include "moc_DAGView.cpp"