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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit41c8d3db370a2f26644303e797ba5bc63e98d760 (patch)
treed9b8b9b55ae4a129923e685b2f0765e4cf9c02ac /examples/activeqt/opengl/glbox.cpp
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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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."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/****************************************************************************
+**
+** 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]