vcglib/apps/sample/trimesh_pos_demo/glwidget.cpp

281 lines
7.7 KiB
C++

/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
* \ *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
/****************************************************************************
History
$Log: not supported by cvs2svn $
Revision 1.4 2007/05/17 09:06:44 ganovelli
gestione double click
Revision 1.3 2006/12/10 23:29:57 ganovelli
added VFIterator (Pos is disabled in this version)
Revision 1.2 2006/12/10 22:17:18 ganovelli
cvs problem during frist committ. repeated
*/
#include <QtGui>
#include <GL/glew.h>
#include <QtOpenGL>
#include <math.h>
#include "glwidget.h"
#include <wrap/io_trimesh/import_PLY.h>
#include <wrap/gl/picking.h>
#include <wrap/gl/space.h>
#include <wrap/gl/pos.h>
#include <vcg/complex/algorithms/update/bounding.h>
#include <vcg/complex/algorithms/update/normal.h>
#include <vcg/complex/algorithms/update/topology.h>
GLWidget::GLWidget(QWidget *parent)
: QGLWidget(parent)
{
object = 0;
trolltechGreen = QColor::fromCmykF(0.40, 0.0, 1.0, 0.0);
trolltechPurple = QColor::fromCmykF(0.39, 0.39, 0.0, 0.0);
track.SetPosition(vcg::Point3f(0.0,0.0,0.0));
track.SetIdentity();
track.radius = 0.4;
pos.f=NULL;
vfite.f = NULL;
doPickVfIte = false;
doPickPos = false;
}
GLWidget::~GLWidget()
{
makeCurrent();
glDeleteLists(object, 1);
}
QSize GLWidget::minimumSizeHint() const
{
return QSize(50, 50);
}
QSize GLWidget::sizeHint() const
{
return QSize(400, 400);
}
void GLWidget::LoadTriMesh(QString &namefile)
{
vcg::tri::io::ImporterPLY<MyStraightMesh>::Open(mesh,namefile.toAscii());
vcg::tri::UpdateBounding<MyStraightMesh>::Box(mesh);
vcg::tri::UpdateNormals<MyStraightMesh>::PerFace(mesh);
vcg::tri::UpdateNormals<MyStraightMesh>::PerVertex(mesh);
vcg::tri::UpdateTopology<MyStraightMesh>::FaceFace(mesh);
vcg::tri::UpdateTopology<MyStraightMesh>::VertexFace(mesh);
pos.f=0;
vfite.f=NULL;
}
void GLWidget::OpenFile(){
QStringList filters;
QString fileName = QFileDialog::getOpenFileName(this,tr("Open File"),".", filters.join("\n"));
if (fileName.isEmpty()) return;
else
LoadTriMesh( fileName );
}
void GLWidget::flipV( ){
if(pos.f) pos.FlipV();
repaint();
}
void GLWidget::flipE( ){
if(pos.f) pos.FlipE();
repaint();
}
void GLWidget::flipF( ){
if(pos.f) pos.FlipF();
repaint();
}
void GLWidget::nextE( ){
if(pos.f) pos.NextE();
repaint();
}
void GLWidget::nextB( ){
if(pos.f) pos.NextB();
repaint();
}
void GLWidget::nextVfite( ){
if(vfite.F()) ++vfite;
repaint();
}
void GLWidget::initializeGL()
{
qglClearColor(trolltechPurple.dark());
glShadeModel(GL_FLAT);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
}
template <class VertexType>
void drawVertex(VertexType & v){
glPushAttrib(0xffffffff);
glPointSize(2.0);
glBegin(GL_POINTS);
glVertex(v.P());
glEnd();
glPopAttrib();
}
void GLWidget::paintGL()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(0,0,2, 0,0,0, 0,1,0);
track.GetView();
track.Apply();
glScalef(1/glWrap.m->bbox.Diag(),1/glWrap.m->bbox.Diag(),1/glWrap.m->bbox.Diag());
glTranslate(-glWrap.m->bbox.Center());
// to do some picking
MyStraightMesh::FaceType* fp=NULL;
MyStraightMesh::VertexType* vp=NULL;
if(doPickPos)
{
std::vector<MyStraightMesh::FaceType*> res;
int yes = vcg::Pick<MyStraightMesh::FaceContainer>(pic_x,ScreenH-pic_y+1,mesh.face,res,vcg::glTriangle3<MyStraightMesh::FaceType>,1,1);
if(yes)
{fp = res[0];
pos.Set(fp,0,fp->V(0));
}
doPickPos=false;
}else
if(doPickVfIte)
{
std::vector<MyStraightMesh::VertexType*> res;
int yes = vcg::Pick<MyStraightMesh::VertContainer>(pic_x,ScreenH-pic_y+1,mesh.vert,res,drawVertex<MyStraightMesh::VertexType>,3,3);
if(yes)
{vp = res[0];
MyStraightMesh::FaceType* g = vp->VFp();
vfite=vcg::face::VFIterator<MyStraightMesh::FaceType>(vp);
}
doPickVfIte = false;
}
glWrap.Draw<vcg::GLW::DMFlatWire,vcg::GLW::CMNone,vcg::GLW::TMNone> ();
if(pos.f!=NULL) {
glPushAttrib(0xffffffff);
glDisable(GL_LIGHTING);
glColor3f(0.0,1.0,0.0);
glDepthRange(0.0,0.999);
vcg::GlPos<vcg::face::Pos<MyStraightMesh::FaceType> >::Draw(pos);
glPopAttrib();
}
if(vfite.F()!=NULL) {
glPushAttrib(0xffffffff);
glDisable(GL_LIGHTING);
glColor3f(0.0,1.0,0.0);
glDepthRange(0.0,0.99);
vcg::GlVfIterator<vcg::face::VFIterator<MyStraightMesh::FaceType> >::Draw(vfite);
glPopAttrib();
}
}
void GLWidget::mouseMoveEvent(QMouseEvent *e)
{
track.MouseMove(e->x(),ScreenH-e->y()+1);
repaint();
//if (event->buttons() & Qt::LeftButton) {
// setXRotation(xRot + 8 * dy);
//} else if (event->buttons() & Qt::RightButton) {
// setXRotation(xRot + 8 * dy);
//}
// lastPos = event->pos();
}
void GLWidget::keyPressEvent ( QKeyEvent * e ) {
if((keypress == Qt::Key_Control)&&(e->key()==Qt::Key_Control))
keypress = -1;
else
keypress = e->key();
}
void GLWidget::mouseDoubleClickEvent(QMouseEvent *e){
if(e->button() == Qt::RightButton)
doPickPos=true;
}
void GLWidget:: mousePressEvent(QMouseEvent *e)
{
if( (keypress==Qt::Key_Control) && (e->button() == Qt::LeftButton) )
track.MouseDown(e->x(),ScreenH-e->y()+1,vcg::Trackball::KEY_CTRL|vcg::Trackball::BUTTON_LEFT );
else
if(e->button() == Qt::LeftButton )
track.MouseDown(e->x(),ScreenH-e->y()+1,vcg::Trackball::BUTTON_LEFT);
else
if(e->button() == Qt::RightButton)
{
doPickVfIte=true;
pic_x = e->x();
pic_y = e->y();
}
repaint();
}
void GLWidget::mouseReleaseEvent ( QMouseEvent * e ){
if( (keypress==Qt::Key_Control) && (e->button() == Qt::LeftButton) )
track.MouseUp(e->x(),ScreenH-e->y()+1,vcg::Trackball::KEY_CTRL );
else
if(e->button() == Qt::LeftButton )
track.MouseUp(e->x(),ScreenH-e->y()+1,vcg::Trackball::BUTTON_LEFT);
repaint();
}
void GLWidget::resizeGL(int w,int h){
ScreenW=w; ScreenH=h;
glViewport(0,0,w,h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45,ScreenW/(float)ScreenH,0.01,5);
}
void GLWidget::wheelEvent ( QWheelEvent * e ){
int v = e->delta()/(float) 120;
track.MouseWheel(v);
repaint();
}