Added sample to use AntTweakBar with meshes and QT

This commit is contained in:
Paolo Cignoni 2012-02-01 10:16:12 +00:00
parent 2621f5777e
commit ecddd5b76a
4 changed files with 462 additions and 0 deletions

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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
#include <QtOpenGL>
#include <math.h>
#include "glwidget.h"
#include <wrap/qt/trackball.h>
enum DrawMode{SMOOTH=0,POINTS,WIRE,FLATWIRE,HIDDEN,FLAT};
TwBar *bar;
char * filename;/// filename of the mesh to load
CMesh mesh; /// the active mesh instance
vcg::GlTrimesh<CMesh> glWrap; /// the active mesh opengl wrapper
vcg::Trackball track; /// the active manipulator
DrawMode drawmode; /// the current drawmode
void initMesh(QString message); /// mesh data structure initializer
void TW_CALL CopyCDStringToClient(char **destPtr, const char *src)
{
size_t srcLen = (src!=NULL) ? strlen(src) : 0;
size_t destLen = (*destPtr!=NULL) ? strlen(*destPtr) : 0;
// Alloc or realloc dest memory block if needed
if( *destPtr==NULL )
*destPtr = (char *)malloc(srcLen+1);
else if( srcLen>destLen )
*destPtr = (char *)realloc(*destPtr, srcLen+1);
// Copy src
if( srcLen>0 )
strncpy(*destPtr, src, srcLen);
(*destPtr)[srcLen] = '\0'; // null-terminated string
}
void TW_CALL loadTetrahedron(void *){
vcg::tri::Tetrahedron(mesh);
glWrap.m = &mesh;
glWrap.Update();
}
void TW_CALL loadMesh(void *)
{
if(filename==0) return;
int err=vcg::tri::io::ImporterPLY<CMesh>::Open(mesh,(char*)filename);
if(err==ply::E_NOERROR)
{
vcg::tri::UpdateBounding<CMesh>::Box(mesh);
vcg::tri::UpdateNormals<CMesh>::PerVertexNormalizedPerFace(mesh);
vcg::tri::UpdateNormals<CMesh>::PerFaceNormalized(mesh);
// Initialize the opengl wrapper
glWrap.m = &mesh;
glWrap.Update();
}
}
GLWidget::GLWidget(QWidget *parent)
: QGLWidget(QGLFormat(QGL::SampleBuffers), parent)
{
filename=0;
setWindowTitle(tr("Hello GL"));
bar = TwNewBar("TweakBar");
TwCopyCDStringToClientFunc (CopyCDStringToClient);
TwAddVarRW(bar,"Input",TW_TYPE_CDSTRING, &filename," label='Filepath' group=SetMesh help=` Name of the file to load` ");
TwAddButton(bar,"Load from file",loadMesh,0, " label='Load Mesh' group=SetMesh help=`load the mesh` ");
TwAddButton(bar,"Use tetrahedron",loadTetrahedron,0, " label='Make Tetrahedron' group=SetMesh help=`use tetrahedron.` ");
// ShapeEV associates Shape enum values with labels that will be displayed instead of enum values
TwEnumVal drawmodes[6] = { {SMOOTH, "Smooth"}, {POINTS, "Per Points"}, {WIRE, "Wire"}, {FLATWIRE, "FlatWire"},{HIDDEN, "Hidden"},{FLAT, "Flat"}};
// Create a type for the enum shapeEV
TwType drawMode = TwDefineEnum("DrawMode", drawmodes, 6);
// add 'g_CurrentShape' to 'bar': this is a variable of type ShapeType. Its key shortcuts are [<] and [>].
TwAddVarRW(bar, "Draw Mode", drawMode, &drawmode, " keyIncr='<' keyDecr='>' help='Change draw mode.' ");
}
GLWidget::~GLWidget() { }
QSize GLWidget::sizeHint() const
{
return QSize(800, 600);
}
void GLWidget::initializeGL ()
{
glClearColor(0, 0, 0, 0);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_NORMALIZE);
glEnable(GL_COLOR_MATERIAL);
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
}
void GLWidget::resizeGL (int w, int h)
{
glViewport (0, 0, (GLsizei) w, (GLsizei) h);
TwWindowSize(w, h);
initializeGL();
}
void GLWidget::paintGL ()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(40, GLWidget::width()/(float)GLWidget::height(), 0.1, 100);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(0,0,5, 0,0,0, 0,1,0);
track.center=vcg::Point3f(0, 0, 0);
track.radius= 1;
track.GetView();
track.Apply(false);
glPushMatrix();
if(mesh.vert.size()>0)
{
float d=1.0f/mesh.bbox.Diag();
vcg::glScale(d);
glTranslate(-mesh.bbox.Center());
// the trimesh drawing calls
switch(drawmode)
{
case SMOOTH: glWrap.Draw<vcg::GLW::DMSmooth, vcg::GLW::CMNone,vcg::GLW::TMNone> (); break;
case POINTS: glWrap.Draw<vcg::GLW::DMPoints, vcg::GLW::CMNone,vcg::GLW::TMNone> (); break;
case WIRE: glWrap.Draw<vcg::GLW::DMWire, vcg::GLW::CMNone,vcg::GLW::TMNone> (); break;
case FLATWIRE: glWrap.Draw<vcg::GLW::DMFlatWire, vcg::GLW::CMNone,vcg::GLW::TMNone> (); break;
case HIDDEN: glWrap.Draw<vcg::GLW::DMHidden, vcg::GLW::CMNone,vcg::GLW::TMNone> (); break;
case FLAT: glWrap.Draw<vcg::GLW::DMFlat, vcg::GLW::CMNone,vcg::GLW::TMNone> (); break;
default: break;
}
}
glPopMatrix();
track.DrawPostApply();
TwDraw();
}
void GLWidget::keyReleaseEvent (QKeyEvent * e)
{
e->ignore ();
if (e->key () == Qt::Key_Control) track.ButtonUp (QT2VCG (Qt::NoButton, Qt::ControlModifier));
if (e->key () == Qt::Key_Shift) track.ButtonUp (QT2VCG (Qt::NoButton, Qt::ShiftModifier));
if (e->key () == Qt::Key_Alt) track.ButtonUp (QT2VCG (Qt::NoButton, Qt::AltModifier));
updateGL ();
}
int TwKeyPressedQt(QKeyEvent *e)
{
int kmod = 0;
if(e->modifiers() & Qt::ShiftModifier ) kmod |= TW_KMOD_SHIFT;
if(e->modifiers() & Qt::ControlModifier ) kmod |= TW_KMOD_CTRL;
if(e->modifiers() & Qt::AltModifier ) kmod |= TW_KMOD_ALT;
int key = e->key();
int k = 0;
if( key>0 && key<0x7e ) k=key; // plain ascii codes
if( key>=Qt::Key_F1 && key<=Qt::Key_F12 )
k = TW_KEY_F1 + (key-Qt::Key_F1 );
else
{
switch( key )
{
case Qt::Key_Left: k = TW_KEY_LEFT; break;
case Qt::Key_Up: k = TW_KEY_UP; break;
case Qt::Key_Right: k = TW_KEY_RIGHT; break;
case Qt::Key_Down: k = TW_KEY_DOWN; break;
case Qt::Key_PageUp: k = TW_KEY_PAGE_UP; break;
case Qt::Key_PageDown: k = TW_KEY_PAGE_DOWN; break;
case Qt::Key_Home: k = TW_KEY_HOME; break;
case Qt::Key_End: k = TW_KEY_END; break;
case Qt::Key_Insert: k = TW_KEY_INSERT; break;
case Qt::Key_Backspace: k = TW_KEY_BACKSPACE; break;
case Qt::Key_Delete: k = TW_KEY_DELETE; break;
case Qt::Key_Return: k = TW_KEY_RETURN; break;
case Qt::Key_Enter: k = TW_KEY_RETURN; break;
case Qt::Key_Escape: k = TW_KEY_ESCAPE; break;
case Qt::Key_Tab: k = TW_KEY_TAB; break;
}
}
return TwKeyPressed(k, kmod);
}
void GLWidget::keyPressEvent (QKeyEvent * e)
{
e->ignore ();
if (e->key () == Qt::Key_Control) track.ButtonDown (QT2VCG (Qt::NoButton, Qt::ControlModifier));
if (e->key () == Qt::Key_Shift) track.ButtonDown (QT2VCG (Qt::NoButton, Qt::ShiftModifier));
if (e->key () == Qt::Key_Alt) track.ButtonDown (QT2VCG (Qt::NoButton, Qt::AltModifier));
TwKeyPressedQt(e);
updateGL ();
}
TwMouseButtonID Qt2TwMouseButtonId(QMouseEvent *e)
{
if(e->button() && Qt::LeftButton) return TW_MOUSE_LEFT;
if(e->button() && Qt::MidButton) return TW_MOUSE_MIDDLE;
if(e->button() && Qt::RightButton) return TW_MOUSE_RIGHT;
assert(0);
}
void GLWidget::mousePressEvent (QMouseEvent * e)
{
e->accept ();
setFocus ();
track.MouseDown (e->x (), height () - e->y (), QT2VCG (e->button (), e->modifiers ()));
TwMouseMotion(e->x (), e->y ());
TwMouseButton(TW_MOUSE_PRESSED, Qt2TwMouseButtonId(e));
updateGL ();
}
void GLWidget::mouseMoveEvent (QMouseEvent * e)
{
if (e->buttons ()) {
track.MouseMove (e->x (), height () - e->y ());
updateGL ();
}
TwMouseMotion(e->x (), e->y ());
}
void GLWidget::mouseReleaseEvent (QMouseEvent * e)
{
track.MouseUp (e->x (), height () - e->y (), QT2VCG (e->button (), e->modifiers ()));
TwMouseButton(TW_MOUSE_RELEASED, Qt2TwMouseButtonId(e));
updateGL ();
}
void GLWidget::wheelEvent (QWheelEvent * e)
{
const int WHEEL_STEP = 120;
track.MouseWheel (e->delta () / float (WHEEL_STEP), QTWheel2VCG (e->modifiers ()));
updateGL ();
}

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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef GLWIDGET_H
#define GLWIDGET_H
#include <QGLWidget>
/// vcg imports
#include <vcg/simplex/vertex/base.h>
#include <vcg/simplex/face/base.h>
#include <vcg/complex/complex.h>
#include <vcg/complex/algorithms/update/bounding.h>
#include <vcg/complex/algorithms/update/normal.h>
#include <vcg/complex/algorithms/create/platonic.h>
/// wrapper imports
#include <wrap/io_trimesh/import.h>
#include <wrap/gl/trimesh.h>
#include <wrap/gui/trackball.h>
/// declaring edge and face type
#include <AntTweakBar.h>
using namespace vcg;
class CFace;
class CVertex;
struct MyUsedTypes : public UsedTypes< Use<CVertex> ::AsVertexType,
Use<CFace> ::AsFaceType>{};
/// compositing wanted proprieties
class CVertex : public vcg::Vertex< MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::Normal3f, vcg::vertex::BitFlags>{};
class CFace : public vcg::Face< MyUsedTypes, vcg::face::VertexRef, vcg::face::Normal3f, vcg::face::BitFlags > {};
class CMesh : public vcg::tri::TriMesh< std::vector<CVertex>, std::vector<CFace> > {};
class GLWidget : public QGLWidget
{
Q_OBJECT
public:
GLWidget(QWidget *parent = 0);
~GLWidget();
QSize sizeHint() const;
protected:
void initializeGL();
void paintGL();
void resizeGL(int width, int height);
void mousePressEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
void mouseMoveEvent(QMouseEvent *event);
void keyPressEvent(QKeyEvent *event);
void keyReleaseEvent(QKeyEvent *event);
void wheelEvent(QWheelEvent *event);
};
#endif

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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QApplication>
#include <QDesktopWidget>
#include "glwidget.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
if( !TwInit(TW_OPENGL, NULL) )
{
fprintf(stderr, "AntTweakBar initialization failed: %s\n", TwGetLastError());
return 1;
}
GLWidget window;
window.show();
return app.exec();
}

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VCGLIBDIR = ../../..
GLEWDIR = ../../../../code/lib/glew/
ANTDIR = ../../../../code/lib/AntTweakBar1.14/
HEADERS = glwidget.h
SOURCES = glwidget.cpp \
main.cpp
QT += opengl
# Compile glew
DEFINES += GLEW_STATIC
INCLUDEPATH += $$GLEWDIR/include
SOURCES += $$GLEWDIR/src/glew.c
INCLUDEPATH += $$VCGLIBDIR
INCLUDEPATH += $$GLEWDIR/include
INCLUDEPATH += $$ANTDIR/include
SOURCES += $$VCGLIBDIR/wrap/ply/plylib.cpp
SOURCES += $$VCGLIBDIR/wrap/gui/trackball.cpp
SOURCES += $$VCGLIBDIR/wrap/gui/trackmode.cpp
# Awful problem with windows..
win32{
DEFINES += NOMINMAX
LIBS +=$$ANTDIR/lib/AntTweakBar.lib
}
mac{
# Mac specific Config required to avoid to make application bundles
CONFIG -= app_bundle
LIBS +=$$ANTDIR/lib/libAntTweakBar.dylib
QMAKE_POST_LINK ="cp -P ../../../../code/lib/AntTweakBar1.14/lib/libAntTweakBar.dylib . ; install_name_tool -change ../lib/libAntTweakBar.dylib ./libAntTweakBar.dylib trimesh_ant_qt"
}