/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** No Commercial Usage ** This file contains pre-release code and may not be distributed. ** You may use this file in accordance with the terms and conditions ** contained in the either Technology Preview License Agreement or the ** Beta Release License Agreement. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Nokia gives you certain ** additional rights. These rights are described in the Nokia Qt LGPL ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this ** package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** If you are unsure which license is appropriate for your use, please ** contact the sales department at http://www.qtsoftware.com/contact. ** $QT_END_LICENSE$ ** ****************************************************************************/ /**************************************************************************** ** ** This is a simple QGLWidget displaying an openGL wireframe box ** ** The OpenGL code is mostly borrowed from Brian Pauls "spin" example ** in the Mesa distribution ** ****************************************************************************/ #include "glbox.h" #include #include //! [0] #include //! [0] #if defined(Q_CC_MSVC) #pragma warning(disable:4305) // init: truncation from const double to float #endif /*! Create a GLBox widget */ GLBox::GLBox( QWidget* parent, const char* name ) : QGLWidget( parent ) { xRot = yRot = zRot = 0.0; // default object rotation scale = 1.25; // default object scale object = 0; } /*! Release allocated resources */ GLBox::~GLBox() { makeCurrent(); glDeleteLists( object, 1 ); } /*! Paint the box. The actual openGL commands for drawing the box are performed here. */ void GLBox::paintGL() { glClear( GL_COLOR_BUFFER_BIT ); glLoadIdentity(); glTranslatef( 0.0, 0.0, -10.0 ); glScalef( scale, scale, scale ); glRotatef( xRot, 1.0, 0.0, 0.0 ); glRotatef( yRot, 0.0, 1.0, 0.0 ); glRotatef( zRot, 0.0, 0.0, 1.0 ); glCallList( object ); } /*! Set up the OpenGL rendering state, and define display list */ void GLBox::initializeGL() { qglClearColor(Qt::black); // Let OpenGL clear to black object = makeObject(); // Generate an OpenGL display list glShadeModel( GL_FLAT ); } /*! Set up the OpenGL view port, matrix mode, etc. */ void GLBox::resizeGL( int w, int h ) { glViewport( 0, 0, (GLint)w, (GLint)h ); glMatrixMode( GL_PROJECTION ); glLoadIdentity(); glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 15.0 ); glMatrixMode( GL_MODELVIEW ); } /*! Generate an OpenGL display list for the object to be shown, i.e. the box */ GLuint GLBox::makeObject() { GLuint list; list = glGenLists( 1 ); glNewList( list, GL_COMPILE ); qglColor(Qt::white); // Shorthand for glColor3f or glIndex glLineWidth( 2.0 ); glBegin( GL_LINE_LOOP ); glVertex3f( 1.0, 0.5, -0.4 ); glVertex3f( 1.0, -0.5, -0.4 ); glVertex3f( -1.0, -0.5, -0.4 ); glVertex3f( -1.0, 0.5, -0.4 ); glEnd(); glBegin( GL_LINE_LOOP ); glVertex3f( 1.0, 0.5, 0.4 ); glVertex3f( 1.0, -0.5, 0.4 ); glVertex3f( -1.0, -0.5, 0.4 ); glVertex3f( -1.0, 0.5, 0.4 ); glEnd(); glBegin( GL_LINES ); glVertex3f( 1.0, 0.5, -0.4 ); glVertex3f( 1.0, 0.5, 0.4 ); glVertex3f( 1.0, -0.5, -0.4 ); glVertex3f( 1.0, -0.5, 0.4 ); glVertex3f( -1.0, -0.5, -0.4 ); glVertex3f( -1.0, -0.5, 0.4 ); glVertex3f( -1.0, 0.5, -0.4 ); glVertex3f( -1.0, 0.5, 0.4 ); glEnd(); glEndList(); return list; } /*! Set the rotation angle of the object to \e degrees around the X axis. */ void GLBox::setXRotation( int degrees ) { xRot = (GLfloat)(degrees % 360); updateGL(); } /*! Set the rotation angle of the object to \e degrees around the Y axis. */ void GLBox::setYRotation( int degrees ) { yRot = (GLfloat)(degrees % 360); updateGL(); } /*! Set the rotation angle of the object to \e degrees around the Z axis. */ void GLBox::setZRotation( int degrees ) { zRot = (GLfloat)(degrees % 360); updateGL(); } //! [1] class ObjectSafetyImpl : public QAxAggregated, public IObjectSafety { public: //! [1] //! [2] ObjectSafetyImpl() {} long queryInterface( const QUuid &iid, void **iface ) { *iface = 0; if ( iid == IID_IObjectSafety ) *iface = (IObjectSafety*)this; else return E_NOINTERFACE; AddRef(); return S_OK; } //! [2] //! [3] QAXAGG_IUNKNOWN; //! [3] //! [4] HRESULT WINAPI GetInterfaceSafetyOptions( REFIID riid, DWORD *pdwSupportedOptions, DWORD *pdwEnabledOptions ) { *pdwSupportedOptions = INTERFACESAFE_FOR_UNTRUSTED_DATA | INTERFACESAFE_FOR_UNTRUSTED_CALLER; *pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_DATA | INTERFACESAFE_FOR_UNTRUSTED_CALLER; return S_OK; } HRESULT WINAPI SetInterfaceSafetyOptions( REFIID riid, DWORD pdwSupportedOptions, DWORD pdwEnabledOptions ) { return S_OK; } }; //! [4] //! [5] QAxAggregated *GLBox::createAggregate() { return new ObjectSafetyImpl(); } //! [5]