154 lines
5.3 KiB
C++
154 lines
5.3 KiB
C++
/***************************************************************************
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* Copyright (c)2011 Luke Parry *
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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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#ifndef _PreComp_
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# include <Inventor/actions/SoGLRenderAction.h>
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# include <Inventor/misc/SoState.h>
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# include <cmath>
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# include <cfloat>
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#endif
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#include <Inventor/actions/SoGetMatrixAction.h>
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#include <Inventor/actions/SoGLRenderAction.h>
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#include <Inventor/elements/SoModelMatrixElement.h>
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#include <Inventor/elements/SoProjectionMatrixElement.h>
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#include <Inventor/elements/SoViewingMatrixElement.h>
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#include <Inventor/elements/SoViewVolumeElement.h>
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#include <Inventor/elements/SoViewportRegionElement.h>
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#include <Inventor/nodes/SoCamera.h>
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#include <Base/Console.h>
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#include <Gui/Application.h>
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#include <Gui/Document.h>
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#include <Gui/MainWindow.h>
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#include <Gui/View3DInventor.h>
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#include <Gui/View3DInventorViewer.h>
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#include "SoAutoZoomTranslation.h"
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// *************************************************************************
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using namespace Gui;
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// ------------------------------------------------------
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SO_NODE_SOURCE(SoAutoZoomTranslation);
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void SoAutoZoomTranslation::initClass()
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{
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SO_NODE_INIT_CLASS(SoAutoZoomTranslation, SoTransformation, "AutoZoom");
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}
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float SoAutoZoomTranslation::getScaleFactor()
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{
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// Dividing by 5 seems to work well
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Gui::MDIView *mdi = Gui::Application::Instance->activeDocument()->getActiveView();
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if (mdi && mdi->isDerivedFrom(Gui::View3DInventor::getClassTypeId())) {
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Gui::View3DInventorViewer *viewer = static_cast<Gui::View3DInventor *>(mdi)->getViewer();
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float fScale = viewer->getCamera()->getViewVolume(viewer->getCamera()->aspectRatio.getValue()).getWorldToScreenScale(SbVec3f(0.f, 0.f, 0.f), 0.1f) / 5;
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if (fScale != this->scale) this->touch();
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this->scale = fScale;
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return this->scale;
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} else {
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return this->scale;
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}
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}
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SoAutoZoomTranslation::SoAutoZoomTranslation()
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{
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SO_NODE_CONSTRUCTOR(SoAutoZoomTranslation);
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//SO_NODE_ADD_FIELD(abPos, (SbVec3f(0.f,0.f,0.f)));
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//this->scale = -1;
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}
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void SoAutoZoomTranslation::GLRender(SoGLRenderAction * action)
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{
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//Base::Console().Log("Draw\n");
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SoAutoZoomTranslation::doAction((SoAction *)action);
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inherited::GLRender(action);
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}
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// Doc in superclass.
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void SoAutoZoomTranslation::doAction(SoAction * action)
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{
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float sf = this->getScaleFactor();
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SoModelMatrixElement::scaleBy(action->getState(), this,
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SbVec3f(sf,sf,sf));
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//Base::Console().Log("Scale: %f\n",sf);
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}
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// set the auto scale factor.
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//void SoAutoZoomTranslation::setAutoScale(void)
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//{
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// float sf = this->getScaleFactor();
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// //this->enableNotify ( false );
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// scaleFactor.setValue(SbVec3f(sf,sf,sf));
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// //this->enableNotify ( true );
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// //scaleFactor.setDirty (true);
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//
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//}
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void SoAutoZoomTranslation::getMatrix(SoGetMatrixAction * action)
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{
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//Base::Console().Log("Matrix\n");
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float sf = this->getScaleFactor();
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SbVec3f scalevec = SbVec3f(sf,sf,sf);
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SbMatrix m;
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m.setScale(scalevec);
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action->getMatrix().multLeft(m);
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m.setScale(SbVec3f(1.0f / scalevec[0], 1.0f / scalevec[1], 1.0f / scalevec[2]));
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action->getInverse().multRight(m);
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}
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void SoAutoZoomTranslation::callback(SoCallbackAction * action)
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{
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// Base::Console().Log("callback\n");
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SoAutoZoomTranslation::doAction((SoAction*)action);
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}
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void SoAutoZoomTranslation::getBoundingBox(SoGetBoundingBoxAction * action)
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{
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//Base::Console().Log("getBoundingBox\n");
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SoAutoZoomTranslation::doAction((SoAction*)action);
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}
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void SoAutoZoomTranslation::pick(SoPickAction * action)
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{
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//Base::Console().Log("pick\n");
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SoAutoZoomTranslation::doAction((SoAction*)action);
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}
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// Doc in superclass.
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void SoAutoZoomTranslation::getPrimitiveCount(SoGetPrimitiveCountAction * action)
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{
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//Base::Console().Log("getPrimitiveCount\n");
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SoAutoZoomTranslation::doAction((SoAction*)action);
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} |