diff options
Diffstat (limited to 'examples/activeqt/opengl/glbox.cpp')
| -rw-r--r-- | examples/activeqt/opengl/glbox.cpp | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/examples/activeqt/opengl/glbox.cpp b/examples/activeqt/opengl/glbox.cpp new file mode 100644 index 0000000000..4cb015b7b4 --- /dev/null +++ b/examples/activeqt/opengl/glbox.cpp @@ -0,0 +1,250 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/**************************************************************************** +** +** 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 <QAxAggregated> +#include <QUuid> +//! [0] +#include <objsafe.h> +//! [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] |