312 lines
8.4 KiB
C++
312 lines
8.4 KiB
C++
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/****************************************************************************
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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) 2004 \/)\/ *
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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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*/
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#include <QtGui>
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#include <GL/glew.h>
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#include <QtOpenGL>
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#include <math.h>
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#include <wrap/io_trimesh/import_PLY.h>
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#include <wrap/gl/picking.h>
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#include <wrap/gl/space.h>
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#include <wrap/gl/pos.h>
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#include <vcg/complex/trimesh/update/bounding.h>
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#include <vcg/complex/trimesh/update/normal.h>
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#include <vcg/complex/trimesh/update/topology.h>
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#include "glwidget.h"
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GLWidget::GLWidget(QWidget *parent)
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: QGLWidget(parent)
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{
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object = 0;
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trolltechGreen = QColor::fromCmykF(0.40, 0.0, 1.0, 0.0);
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trolltechPurple = QColor::fromCmykF(0.39, 0.39, 0.0, 0.0);
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track.SetPosition(vcg::Point3f(0.0,0.0,0.0));
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track.SetIdentity();
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track.radius = 0.4;
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pos.f=NULL;
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}
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GLWidget::~GLWidget()
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{
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makeCurrent();
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glDeleteLists(object, 1);
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}
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QSize GLWidget::minimumSizeHint() const
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{
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return QSize(50, 50);
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}
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QSize GLWidget::sizeHint() const
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{
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return QSize(400, 400);
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}
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void GLWidget::LoadTriMesh( char* namefile)
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{
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vcg::tri::io::ImporterPLY<MyStraightMesh>::Open(mesh,namefile);
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vcg::tri::UpdateBounding<MyStraightMesh>::Box(mesh);
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vcg::tri::UpdateNormals<MyStraightMesh>::PerFace(mesh);
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vcg::tri::UpdateNormals<MyStraightMesh>::PerVertex(mesh);
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vcg::tri::UpdateTopology<MyStraightMesh>::FaceFace(mesh);
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pos.f=0;
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}
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void GLWidget::OpenFile(){
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QStringList filters;
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QString fileName = QFileDialog::getOpenFileName(this,tr("Open File"),".", filters.join("\n"));
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if (fileName.isEmpty()) return;
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else
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LoadTriMesh((char*)fileName.data());
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}
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void GLWidget::flipV( ){
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if(pos.f) pos.FlipV();
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repaint();
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}
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void GLWidget::flipE( ){
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if(pos.f) pos.FlipE();
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repaint();
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}
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void GLWidget::flipF( ){
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if(pos.f) pos.FlipF();
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repaint();
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}
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void GLWidget::nextE( ){
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if(pos.f) pos.NextE();
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repaint();
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}
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void GLWidget::initializeGL()
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{
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qglClearColor(trolltechPurple.dark());
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object = makeObject();
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glShadeModel(GL_FLAT);
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glEnable(GL_DEPTH_TEST);
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glEnable(GL_CULL_FACE);
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}
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void GLWidget::paintGL()
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{
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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gluLookAt(0,0,2, 0,0,0, 0,1,0);
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track.GetView();
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track.Apply();
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glScalef(1/glWrap.m->bbox.Diag(),1/glWrap.m->bbox.Diag(),1/glWrap.m->bbox.Diag());
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glTranslate(-glWrap.m->bbox.Center());
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// to do some picking
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MyStraightMesh::FaceType* fp=NULL;
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if(doPick)
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{
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std::vector<MyStraightMesh::FaceType*> res;
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int yes = vcg::Pick<MyStraightMesh::FaceContainer>(pic_x,ScreenH-pic_y+1,mesh.face,res,vcg::glTriangle3<MyStraightMesh::FaceType>,1,1);
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if(yes)
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{fp = res[0];
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pos.Set(fp,0,fp->V(0));
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}
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doPick=false;
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}
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glWrap.Draw<vcg::GLW::DMFlatWire,vcg::GLW::CMNone,vcg::GLW::TMNone> ();
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if(pos.f!=NULL) {
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glPushAttrib(0xffffffff);
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glDisable(GL_LIGHTING);
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glColor3f(0.0,1.0,0.0);
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glDepthRange(0.0,0.999);
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vcg::GlPos<vcg::face::Pos<MyStraightMesh::FaceType> >::Draw(pos);
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glPopAttrib();
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}
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}
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void GLWidget::mouseMoveEvent(QMouseEvent *e)
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{
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track.MouseMove(e->x(),ScreenH-e->y()+1);
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repaint();
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//if (event->buttons() & Qt::LeftButton) {
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// setXRotation(xRot + 8 * dy);
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//} else if (event->buttons() & Qt::RightButton) {
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// setXRotation(xRot + 8 * dy);
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//}
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// lastPos = event->pos();
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}
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void GLWidget::keyPressEvent ( QKeyEvent * e ) {
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if((keypress == Qt::Key_Control)&&(e->key()==Qt::Key_Control))
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keypress = -1;
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else
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keypress = e->key();
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}
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GLuint GLWidget::makeObject()
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{
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GLuint list = glGenLists(1);
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glNewList(list, GL_COMPILE);
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glBegin(GL_QUADS);
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GLdouble x1 = +0.06;
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GLdouble y1 = -0.14;
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GLdouble x2 = +0.14;
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GLdouble y2 = -0.06;
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GLdouble x3 = +0.08;
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GLdouble y3 = +0.00;
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GLdouble x4 = +0.30;
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GLdouble y4 = +0.22;
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quad(x1, y1, x2, y2, y2, x2, y1, x1);
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quad(x3, y3, x4, y4, y4, x4, y3, x3);
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extrude(x1, y1, x2, y2);
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extrude(x2, y2, y2, x2);
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extrude(y2, x2, y1, x1);
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extrude(y1, x1, x1, y1);
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extrude(x3, y3, x4, y4);
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extrude(x4, y4, y4, x4);
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extrude(y4, x4, y3, x3);
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const double Pi = 3.14159265358979323846;
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const int NumSectors = 200;
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for (int i = 0; i < NumSectors; ++i) {
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double angle1 = (i * 2 * Pi) / NumSectors;
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GLdouble x5 = 0.30 * sin(angle1);
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GLdouble y5 = 0.30 * cos(angle1);
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GLdouble x6 = 0.20 * sin(angle1);
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GLdouble y6 = 0.20 * cos(angle1);
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double angle2 = ((i + 1) * 2 * Pi) / NumSectors;
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GLdouble x7 = 0.20 * sin(angle2);
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GLdouble y7 = 0.20 * cos(angle2);
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GLdouble x8 = 0.30 * sin(angle2);
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GLdouble y8 = 0.30 * cos(angle2);
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quad(x5, y5, x6, y6, x7, y7, x8, y8);
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extrude(x6, y6, x7, y7);
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extrude(x8, y8, x5, y5);
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}
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glEnd();
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glEndList();
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return list;
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}
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void GLWidget::quad(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2,
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GLdouble x3, GLdouble y3, GLdouble x4, GLdouble y4)
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{
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qglColor(trolltechGreen);
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glVertex3d(x1, y1, -0.05);
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glVertex3d(x2, y2, -0.05);
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glVertex3d(x3, y3, -0.05);
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glVertex3d(x4, y4, -0.05);
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glVertex3d(x4, y4, +0.05);
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glVertex3d(x3, y3, +0.05);
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glVertex3d(x2, y2, +0.05);
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glVertex3d(x1, y1, +0.05);
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}
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void GLWidget::extrude(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
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{
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qglColor(trolltechGreen.dark(250 + int(100 * x1)));
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glVertex3d(x1, y1, +0.05);
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glVertex3d(x2, y2, +0.05);
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glVertex3d(x2, y2, -0.05);
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glVertex3d(x1, y1, -0.05);
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}
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void GLWidget::normalizeAngle(int *angle)
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{
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while (*angle < 0)
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*angle += 360 * 16;
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while (*angle > 360 * 16)
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*angle -= 360 * 16;
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}
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void GLWidget:: mousePressEvent(QMouseEvent *e)
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{
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if( (keypress==Qt::Key_Control) && (e->button() == Qt::LeftButton) )
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track.MouseDown(e->x(),ScreenH-e->y()+1,vcg::Trackball::KEY_CTRL|vcg::Trackball::BUTTON_LEFT );
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else
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if(e->button() == Qt::LeftButton )
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track.MouseDown(e->x(),ScreenH-e->y()+1,vcg::Trackball::BUTTON_LEFT);
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else
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if(e->button() == Qt::RightButton)
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{
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doPick=true;
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pic_x = e->x();
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pic_y = e->y();
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}
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repaint();
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}
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void GLWidget::mouseReleaseEvent ( QMouseEvent * e ){
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if( (keypress==Qt::Key_Control) && (e->button() == Qt::LeftButton) )
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track.MouseUp(e->x(),ScreenH-e->y()+1,vcg::Trackball::KEY_CTRL );
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else
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if(e->button() == Qt::LeftButton )
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track.MouseUp(e->x(),ScreenH-e->y()+1,vcg::Trackball::BUTTON_LEFT);
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repaint();
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}
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void GLWidget::resizeGL(int w,int h){
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ScreenW=w; ScreenH=h;
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glViewport(0,0,w,h);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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gluPerspective(45,ScreenW/(float)ScreenH,0.01,5);
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}
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void GLWidget::wheelEvent ( QWheelEvent * e ){
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int v = e->delta()/(float) 120;
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track.MouseWheel(v);
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repaint();
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}
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