187 lines
5.8 KiB
C++
187 lines
5.8 KiB
C++
/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2007 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program 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 General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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/****************************************************************************
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History
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$Log: not supported by cvs2svn $
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Revision 1.1 2007/10/18 08:52:06 benedetti
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Initial release.
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****************************************************************************/
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#include "glarea.h"
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#include <QKeyEvent>
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#include <QKeyEvent>
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#include <QWheelEvent>
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#include <wrap/qt/trackball.h>
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#include <cassert>
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#ifdef Q_OS_MAC
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#define glGenVertexArrays glGenVertexArraysAPPLE
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#define glBindVertexArrays glBindVertexArraysAPPLE
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#define glDeleteVertexArrays glDeleteVertexArraysAPPLE
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#endif
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GLArea::GLArea (CMesh& m,MLThreadSafeGLMeshAttributesFeeder& feed,QWidget * parent)
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:QGLWidget (parent),vaohandlespecificicforglcontext(0),mesh(m),feeder(feed)
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{
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drawmode= SMOOTH;
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}
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GLArea::~GLArea()
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{
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glDeleteVertexArrays(1,&vaohandlespecificicforglcontext);
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}
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void GLArea::selectDrawMode(int mode)
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{
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feeder.update(vcg::GLMeshAttributesFeeder<CMesh>::ATT_ALL);
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drawmode=DrawMode(mode);
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updateGL();
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}
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void GLArea::initializeGL ()
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{
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makeCurrent();
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glewExperimental=GL_TRUE;
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glewInit();
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if (vaohandlespecificicforglcontext == 0)
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glGenVertexArrays(1,&vaohandlespecificicforglcontext);
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glClearColor(0, 0, 0, 0);
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glEnable(GL_LIGHTING);
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glEnable(GL_LIGHT0);
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glEnable(GL_NORMALIZE);
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glEnable(GL_COLOR_MATERIAL);
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glEnable(GL_CULL_FACE);
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glEnable(GL_DEPTH_TEST);
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}
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void GLArea::resizeGL (int w, int h)
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{
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makeCurrent();
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glViewport (0, 0, (GLsizei) w, (GLsizei) h);
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initializeGL();
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}
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void GLArea::paintGL ()
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{
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makeCurrent();
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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gluPerspective(25, GLArea::width()/(float)GLArea::height(), 0.1, 100);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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gluLookAt(0,0,5, 0,0,0, 0,1,0);
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track.center=vcg::Point3f(0, 0, 0);
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track.radius= 1;
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track.GetView();
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track.Apply();
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glPushMatrix();
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float d=2.0f/mesh.bbox.Diag();
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vcg::glScale(d);
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glTranslate(mesh.bbox.Center());
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// the trimesh drawing calls
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switch(drawmode)
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{
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case SMOOTH:
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feeder.drawTriangles(vaohandlespecificicforglcontext,vcg::GLFeedEnum::NR_PERVERT,vcg::GLFeedEnum::CL_NONE,vcg::GLFeedEnum::TX_NONE);
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break;
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case POINTS:
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feeder.drawPoints(vaohandlespecificicforglcontext,vcg::GLFeedEnum::CL_NONE);
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break;
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case WIRE:
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feeder.drawWire(vaohandlespecificicforglcontext,vcg::GLFeedEnum::NR_PERVERT,vcg::GLFeedEnum::CL_NONE);
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break;
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case FLATWIRE:
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feeder.drawFlatWire(vaohandlespecificicforglcontext,vcg::GLFeedEnum::CL_NONE,vcg::GLFeedEnum::TX_NONE);
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break;
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case FLAT:
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feeder.drawTriangles(vaohandlespecificicforglcontext,vcg::GLFeedEnum::NR_PERFACE,vcg::GLFeedEnum::CL_NONE,vcg::GLFeedEnum::TX_NONE);
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break;
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default:
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break;
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}
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glPopMatrix();
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track.DrawPostApply();
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GLenum err = glGetError();
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assert(err == GL_NO_ERROR);
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}
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void GLArea::keyReleaseEvent (QKeyEvent * e)
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{
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e->ignore ();
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if (e->key () == Qt::Key_Control)
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track.ButtonUp (QT2VCG (Qt::NoButton, Qt::ControlModifier));
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if (e->key () == Qt::Key_Shift)
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track.ButtonUp (QT2VCG (Qt::NoButton, Qt::ShiftModifier));
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if (e->key () == Qt::Key_Alt)
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track.ButtonUp (QT2VCG (Qt::NoButton, Qt::AltModifier));
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updateGL ();
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}
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void GLArea::keyPressEvent (QKeyEvent * e)
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{
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e->ignore ();
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if (e->key () == Qt::Key_Control)
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track.ButtonDown (QT2VCG (Qt::NoButton, Qt::ControlModifier));
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if (e->key () == Qt::Key_Shift)
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track.ButtonDown (QT2VCG (Qt::NoButton, Qt::ShiftModifier));
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if (e->key () == Qt::Key_Alt)
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track.ButtonDown (QT2VCG (Qt::NoButton, Qt::AltModifier));
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updateGL ();
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}
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void GLArea::mousePressEvent (QMouseEvent * e)
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{
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e->accept ();
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setFocus ();
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track.MouseDown (QT2VCG_X(this,e), QT2VCG_Y(this,e), QT2VCG (e->button (), e->modifiers ()));
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updateGL ();
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}
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void GLArea::mouseMoveEvent (QMouseEvent * e)
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{
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if (e->buttons ()) {
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track.MouseMove (QT2VCG_X(this,e), QT2VCG_Y(this,e));
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updateGL ();
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}
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}
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void GLArea::mouseReleaseEvent (QMouseEvent * e)
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{
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track.MouseUp (QT2VCG_X(this,e), QT2VCG_Y(this,e), QT2VCG (e->button (), e->modifiers ()));
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updateGL ();
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}
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void GLArea::wheelEvent (QWheelEvent * e)
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{
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const int WHEEL_STEP = 120;
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track.MouseWheel (e->delta () / float (WHEEL_STEP), QTWheel2VCG (e->modifiers ()));
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updateGL ();
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}
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