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Diffstat (limited to 'experimental/tqtinterface/qt4/tools/designer/examples/opengl/glwidget.cpp')
-rw-r--r-- | experimental/tqtinterface/qt4/tools/designer/examples/opengl/glwidget.cpp | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/experimental/tqtinterface/qt4/tools/designer/examples/opengl/glwidget.cpp b/experimental/tqtinterface/qt4/tools/designer/examples/opengl/glwidget.cpp new file mode 100644 index 000000000..1109807c9 --- /dev/null +++ b/experimental/tqtinterface/qt4/tools/designer/examples/opengl/glwidget.cpp @@ -0,0 +1,170 @@ +/********************************************************************** +** +** Copyright (C) 2000-2008 Trolltech ASA. All rights reserved. +** +** This file is part of TQt Designer. +** +** This file may be used under the terms of the GNU General +** Public License versions 2.0 or 3.0 as published by the Free +** Software Foundation and appearing in the files LICENSE.GPL2 +** and LICENSE.GPL3 included in the packaging of this file. +** Alternatively you may (at your option) use any later version +** of the GNU General Public License if such license has been +** publicly approved by Trolltech ASA (or its successors, if any) +** and the KDE Free TQt Foundation. +** +** Please review the following information to ensure GNU General +** Public Licensing requirements will be met: +** http://trolltech.com/products/qt/licenses/licensing/opensource/. +** If you are unsure which license is appropriate for your use, please +** review the following information: +** http://trolltech.com/products/qt/licenses/licensing/licensingoverview +** or contact the sales department at sales@trolltech.com. +** +** Licensees holding valid TQt Commercial licenses may use this file in +** accordance with the TQt Commercial License Agreement provided with +** the Software. +** +** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, +** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted +** herein. +** +**********************************************************************/ + +#include "glwidget.h" + +/*! + Create a GLWidget widget +*/ + +GLWidget::GLWidget( TQWidget* tqparent, const char* name ) + : TQGLWidget( tqparent, name ) +{ + xrot = yrot = zrot = 25; // default object rotation + scale_ = 1.25; // default object scale + object = 0; +} + +/*! + Release allocated resources +*/ + +GLWidget::~GLWidget() +{ + glDeleteLists( object, 1 ); +} + + +/*! + Paint the box. The actual openGL commands for drawing the box are + performed here. +*/ + +void GLWidget::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 GLWidget::initializeGL() +{ + qglClearColor( 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 GLWidget::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 GLWidget::makeObject() +{ + GLuint list; + + list = glGenLists( 1 ); + + glNewList( list, GL_COMPILE ); + + qglColor( white ); // Shorthand for glColor3f or glIndex + + glLineWidth( 2.0 ); + + glBegin( GL_LINE_LOOP ); + glVertex3f( 1.0f, 0.5f, -0.4f ); + glVertex3f( 1.0f, -0.5f, -0.4f ); + glVertex3f( -1.0f, -0.5f, -0.4f ); + glVertex3f( -1.0f, 0.5f, -0.4f ); + glEnd(); + + glBegin( GL_LINE_LOOP ); + glVertex3f( 1.0f, 0.5f, 0.4f ); + glVertex3f( 1.0f, -0.5f, 0.4f ); + glVertex3f( -1.0f, -0.5f, 0.4f ); + glVertex3f( -1.0f, 0.5f, 0.4f ); + glEnd(); + + glBegin( GL_LINES ); + glVertex3f( 1.0f, 0.5f, -0.4f ); glVertex3f( 1.0f, 0.5f, 0.4f ); + glVertex3f( 1.0f, -0.5f, -0.4f ); glVertex3f( 1.0f, -0.5f, 0.4f ); + glVertex3f( -1.0f, -0.5f, -0.4f ); glVertex3f( -1.0f, -0.5f, 0.4f ); + glVertex3f( -1.0f, 0.5f, -0.4f ); glVertex3f( -1.0f, 0.5f, 0.4f ); + glEnd(); + + glEndList(); + + return list; +} + +void GLWidget::setXRot( double x ) +{ + xrot = x; + update(); +} + +void GLWidget::setYRot( double y ) +{ + yrot = y; + update(); +} + +void GLWidget::setZRot( double z ) +{ + zrot = z; + update(); +} + +void GLWidget::setScale( double s ) +{ + scale_ = s; + update(); +} |