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author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-11-08 12:31:36 -0600 |
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committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-11-08 12:31:36 -0600 |
commit | d796c9dd933ab96ec83b9a634feedd5d32e1ba3f (patch) | |
tree | 6e3dcca4f77e20ec8966c666aac7c35bd4704053 /examples/opengl/texture | |
download | tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.tar.gz tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.zip |
Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731
Diffstat (limited to 'examples/opengl/texture')
-rw-r--r-- | examples/opengl/texture/README | 4 | ||||
-rw-r--r-- | examples/opengl/texture/gllogo.bmp | bin | 0 -> 17462 bytes | |||
-rw-r--r-- | examples/opengl/texture/globjwin.cpp | 78 | ||||
-rw-r--r-- | examples/opengl/texture/globjwin.h | 32 | ||||
-rw-r--r-- | examples/opengl/texture/gltexobj.cpp | 240 | ||||
-rw-r--r-- | examples/opengl/texture/gltexobj.h | 54 | ||||
-rw-r--r-- | examples/opengl/texture/main.cpp | 42 | ||||
-rw-r--r-- | examples/opengl/texture/qtlogo.bmp | bin | 0 -> 17462 bytes | |||
-rw-r--r-- | examples/opengl/texture/texture.doc | 10 | ||||
-rw-r--r-- | examples/opengl/texture/texture.pro | 14 |
10 files changed, 474 insertions, 0 deletions
diff --git a/examples/opengl/texture/README b/examples/opengl/texture/README new file mode 100644 index 000000000..5b85cd719 --- /dev/null +++ b/examples/opengl/texture/README @@ -0,0 +1,4 @@ + +The texture example + +This example program demonstrates how to use OpenGL 2D textures. diff --git a/examples/opengl/texture/gllogo.bmp b/examples/opengl/texture/gllogo.bmp Binary files differnew file mode 100644 index 000000000..ee64a1036 --- /dev/null +++ b/examples/opengl/texture/gllogo.bmp diff --git a/examples/opengl/texture/globjwin.cpp b/examples/opengl/texture/globjwin.cpp new file mode 100644 index 000000000..e46833faf --- /dev/null +++ b/examples/opengl/texture/globjwin.cpp @@ -0,0 +1,78 @@ +/**************************************************************************** +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for TQt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#include <qpushbutton.h> +#include <qslider.h> +#include <qlayout.h> +#include <qframe.h> +#include <qmenubar.h> +#include <qpopupmenu.h> +#include <qapplication.h> +#include <qkeycode.h> +#include "globjwin.h" +#include "gltexobj.h" + + +GLObjectWindow::GLObjectWindow( TQWidget* parent, const char* name ) + : TQWidget( parent, name ) +{ + + // Create nice frames to put around the OpenGL widgets + TQFrame* f1 = new TQFrame( this, "frame1" ); + f1->setFrameStyle( TQFrame::Sunken | TQFrame::Panel ); + f1->setLineWidth( 2 ); + + // Create an OpenGL widget + GLTexobj* c = new GLTexobj( f1, "glbox1"); + + // Create a menu + TQPopupMenu *file = new TQPopupMenu( this ); + file->insertItem( "Toggle Animation", c, SLOT(toggleAnimation()), + CTRL+Key_A ); + file->insertSeparator(); + file->insertItem( "Exit", qApp, SLOT(tquit()), CTRL+Key_Q ); + + // Create a menu bar + TQMenuBar *m = new TQMenuBar( this ); + m->setSeparator( TQMenuBar::InWindowsStyle ); + m->insertItem("&File", file ); + + // Create the three sliders; one for each rotation axis + TQSlider* x = new TQSlider ( 0, 360, 60, 0, TQSlider::Vertical, this, "xsl" ); + x->setTickmarks( TQSlider::Left ); + connect( x, SIGNAL(valueChanged(int)), c, SLOT(setXRotation(int)) ); + + TQSlider* y = new TQSlider ( 0, 360, 60, 0, TQSlider::Vertical, this, "ysl" ); + y->setTickmarks( TQSlider::Left ); + connect( y, SIGNAL(valueChanged(int)), c, SLOT(setYRotation(int)) ); + + TQSlider* z = new TQSlider ( 0, 360, 60, 0, TQSlider::Vertical, this, "zsl" ); + z->setTickmarks( TQSlider::Left ); + connect( z, SIGNAL(valueChanged(int)), c, SLOT(setZRotation(int)) ); + + + // Now that we have all the widgets, put them into a nice layout + + // Put the sliders on top of each other + TQVBoxLayout* vlayout = new TQVBoxLayout( 20, "vlayout"); + vlayout->addWidget( x ); + vlayout->addWidget( y ); + vlayout->addWidget( z ); + + // Put the GL widget inside the frame + TQHBoxLayout* flayout1 = new TQHBoxLayout( f1, 2, 2, "flayout1"); + flayout1->addWidget( c, 1 ); + + // Top level layout, puts the sliders to the left of the frame/GL widget + TQHBoxLayout* hlayout = new TQHBoxLayout( this, 20, 20, "hlayout"); + hlayout->setMenuBar( m ); + hlayout->addLayout( vlayout ); + hlayout->addWidget( f1, 1 ); + +} diff --git a/examples/opengl/texture/globjwin.h b/examples/opengl/texture/globjwin.h new file mode 100644 index 000000000..98dad489e --- /dev/null +++ b/examples/opengl/texture/globjwin.h @@ -0,0 +1,32 @@ +/**************************************************************************** +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for TQt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +/**************************************************************************** +** +** The GLObjectWindow contains a GLBox and three sliders connected to +** the GLBox's rotation slots. +** +****************************************************************************/ + +#ifndef GLOBJWIN_H +#define GLOBJWIN_H + +#include <qwidget.h> + + +class GLObjectWindow : public TQWidget +{ + Q_OBJECT +public: + GLObjectWindow( TQWidget* parent = 0, const char* name = 0 ); + +}; + + +#endif // GLOBJWIN_H diff --git a/examples/opengl/texture/gltexobj.cpp b/examples/opengl/texture/gltexobj.cpp new file mode 100644 index 000000000..483a18843 --- /dev/null +++ b/examples/opengl/texture/gltexobj.cpp @@ -0,0 +1,240 @@ +/**************************************************************************** +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for TQt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +/**************************************************************************** +** +** This is a simple TQGLWidget demonstrating the use of TQImages for textures. +** +** Much of the GL code is inspired by the 'spectex' and 'texcyl' +** public domain demo programs by Brian Paul. +** +****************************************************************************/ + +#include "gltexobj.h" +#include <qimage.h> +#include <qtimer.h> + + +const int redrawWait = 50; + +/*! + Create a GLTexobj widget +*/ + +GLTexobj::GLTexobj( TQWidget* parent, const char* name ) + : TQGLWidget( parent, name ) +{ + xRot = yRot = zRot = 0.0; // default object rotation + scale = 5.0; // default object scale + object = 0; + animation = TRUE; + timer = new TQTimer( this ); + connect( timer, SIGNAL(timeout()), SLOT(update()) ); + timer->start( redrawWait, TRUE ); +} + + +/*! + Release allocated resources +*/ + +GLTexobj::~GLTexobj() +{ + makeCurrent(); + glDeleteLists( object, 1 ); +} + + +/*! + Paint the texobj. The actual openGL commands for drawing the texobj are + performed here. +*/ + +void GLTexobj::paintGL() +{ + if ( animation ) { + xRot += 1.0; + yRot += 2.5; + zRot -= 5.0; + } + glClear( GL_COLOR_BUFFER_BIT ); + glPushMatrix(); + glRotatef( xRot, 1.0, 0.0, 0.0 ); + glRotatef( yRot, 0.0, 1.0, 0.0 ); + glRotatef( zRot, 0.0, 0.0, 1.0 ); + glScalef( scale, scale, scale ); + glCallList( object ); + glPopMatrix(); + + if ( animation ) { + glFlush(); // Make sure everything is drawn before restarting timer + timer->start( redrawWait, TRUE ); // Wait this many msecs before redraw + } +} + + +/*! + Set up the OpenGL rendering state, and define display list +*/ + +void GLTexobj::initializeGL() +{ + // Set up the lights + + GLfloat whiteDir[4] = {2.0, 2.0, 2.0, 1.0}; + GLfloat whiteAmb[4] = {1.0, 1.0, 1.0, 1.0}; + GLfloat lightPos[4] = {30.0, 30.0, 30.0, 1.0}; + + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_FALSE); + glLightModelfv(GL_LIGHT_MODEL_AMBIENT, whiteAmb); + + glMaterialfv(GL_FRONT, GL_DIFFUSE, whiteDir); + glMaterialfv(GL_FRONT, GL_SPECULAR, whiteDir); + glMaterialf(GL_FRONT, GL_SHININESS, 20.0); + + glLightfv(GL_LIGHT0, GL_DIFFUSE, whiteDir); // enable diffuse + glLightfv(GL_LIGHT0, GL_SPECULAR, whiteDir); // enable specular + glLightfv(GL_LIGHT0, GL_POSITION, lightPos); + + // Set up the textures + + TQImage tex1, tex2, buf; + + if ( !buf.load( "gllogo.bmp" ) ) { // Load first image from file + qWarning( "Could not read image file, using single-color instead." ); + TQImage dummy( 128, 128, 32 ); + dummy.fill( TQt::green.rgb() ); + buf = dummy; + } + tex1 = TQGLWidget::convertToGLFormat( buf ); // flipped 32bit RGBA + + if ( !buf.load( "qtlogo.bmp" ) ) { // Load first image from file + qWarning( "Could not read image file, using single-color instead." ); + TQImage dummy( 128, 128, 32 ); + dummy.fill( TQt::red.rgb() ); + buf = dummy; + } + tex2 = TQGLWidget::convertToGLFormat( buf ); // flipped 32bit RGBA + + glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); + glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR ); + glEnable( GL_TEXTURE_2D ); + + // Set up various other stuff + + glClearColor( 0.0, 0.0, 0.0, 0.0 ); // Let OpenGL clear to black + glEnable( GL_CULL_FACE ); // don't need Z testing for convex objects + glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST ); + + // Make the object display list + + object = makeObject( tex1, tex2 ); // Generate an OpenGL display list +} + + + +/*! + Set up the OpenGL view port, matrix mode, etc. +*/ + +void GLTexobj::resizeGL( int w, int h ) +{ + glViewport( 0, 0, w, h ); + glMatrixMode( GL_PROJECTION ); + glLoadIdentity(); + glFrustum( -1.0, 1.0, -1.0, 1.0, 10.0, 100.0 ); + glMatrixMode( GL_MODELVIEW ); + glLoadIdentity(); + glTranslatef( 0.0, 0.0, -70.0 ); +} + + +/*! + Generate an OpenGL display list for the object to be shown, i.e. the texobj +*/ + +GLuint GLTexobj::makeObject( const TQImage& tex1, const TQImage& tex2 ) +{ + GLUquadricObj* q = gluNewQuadric(); + GLuint cylinderObj = glGenLists(1); + glNewList( cylinderObj, GL_COMPILE ); + + glTranslatef( 0.0, 0.0, -1.0 ); + + // cylinder + glTexImage2D( GL_TEXTURE_2D, 0, 3, tex1.width(), tex1.height(), 0, + GL_RGBA, GL_UNSIGNED_BYTE, tex1.bits() ); + gluQuadricTexture( q, GL_TRUE ); + gluCylinder(q, 0.6, 0.6, 2.0, 24, 1); + + // end cap + glTexImage2D( GL_TEXTURE_2D, 0, 3, tex2.width(), tex2.height(), 0, + GL_RGBA, GL_UNSIGNED_BYTE, tex2.bits() ); + glTranslatef( 0.0, 0.0, 2.0 ); + gluDisk( q, 0.0, 0.6, 24, 1 ); + + // other end cap + glTranslatef( 0.0, 0.0, -2.0 ); + gluQuadricOrientation( q, (GLenum)GLU_INSIDE ); + gluDisk( q, 0.0, 0.6, 24, 1 ); + + glEndList(); + gluDeleteQuadric( q ); + + return cylinderObj; +} + + +/*! + Set the rotation angle of the object to \e degrees around the X axis. +*/ + +void GLTexobj::setXRotation( int degrees ) +{ + xRot = (GLfloat)(degrees % 360); + updateGL(); +} + + +/*! + Set the rotation angle of the object to \e degrees around the Y axis. +*/ + +void GLTexobj::setYRotation( int degrees ) +{ + yRot = (GLfloat)(degrees % 360); + updateGL(); +} + + +/*! + Set the rotation angle of the object to \e degrees around the Z axis. +*/ + +void GLTexobj::setZRotation( int degrees ) +{ + zRot = (GLfloat)(degrees % 360); + updateGL(); +} + + +/*! + Turns animation on or off +*/ + +void GLTexobj::toggleAnimation() +{ + animation = !animation; + if ( animation ) + updateGL(); + else + timer->stop(); +} diff --git a/examples/opengl/texture/gltexobj.h b/examples/opengl/texture/gltexobj.h new file mode 100644 index 000000000..9fa368376 --- /dev/null +++ b/examples/opengl/texture/gltexobj.h @@ -0,0 +1,54 @@ +/**************************************************************************** +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for TQt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +/**************************************************************************** +** +** This is a simple TQGLWidget displaying an openGL wireframe box +** +****************************************************************************/ + +#ifndef GLTEXOBJ_H +#define GLTEXOBJ_H + +#include <qgl.h> + + +class GLTexobj : public TQGLWidget +{ + Q_OBJECT + +public: + + GLTexobj( TQWidget* parent, const char* name ); + ~GLTexobj(); + +public slots: + + void setXRotation( int degrees ); + void setYRotation( int degrees ); + void setZRotation( int degrees ); + void toggleAnimation(); + +protected: + + void initializeGL(); + void paintGL(); + void resizeGL( int w, int h ); + + virtual GLuint makeObject( const TQImage& tex1, const TQImage& tex2 ); + +private: + bool animation; + GLuint object; + GLfloat xRot, yRot, zRot, scale; + TQTimer* timer; +}; + + +#endif // GLTEXOBJ_H diff --git a/examples/opengl/texture/main.cpp b/examples/opengl/texture/main.cpp new file mode 100644 index 000000000..4798bc16d --- /dev/null +++ b/examples/opengl/texture/main.cpp @@ -0,0 +1,42 @@ +/**************************************************************************** +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for TQt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ +// +// TQt OpenGL example: Texture +// +// File: main.cpp +// +// The main() function +// + +#include "globjwin.h" +#include <qapplication.h> +#include <qgl.h> + +/* + The main program is here. +*/ + +int main( int argc, char **argv ) +{ + TQApplication::setColorSpec( TQApplication::CustomColor ); + TQApplication a(argc,argv); + + if ( !TQGLFormat::hasOpenGL() ) { + qWarning( "This system has no OpenGL support. Exiting." ); + return -1; + } + + GLObjectWindow* w = new GLObjectWindow; + w->resize( 400, 350 ); + a.setMainWidget( w ); + w->show(); + int result = a.exec(); + delete w; + return result; +} diff --git a/examples/opengl/texture/qtlogo.bmp b/examples/opengl/texture/qtlogo.bmp Binary files differnew file mode 100644 index 000000000..b7f9215d9 --- /dev/null +++ b/examples/opengl/texture/qtlogo.bmp diff --git a/examples/opengl/texture/texture.doc b/examples/opengl/texture/texture.doc new file mode 100644 index 000000000..28f1d3fbd --- /dev/null +++ b/examples/opengl/texture/texture.doc @@ -0,0 +1,10 @@ +/*! \page opengl-texture-example.html + + \ingroup opengl-examples + \title OpenGL Texture Example + +This example program demonstrates how to use OpenGL 2D textures. + +See \c{$QTDIR/examples/opengl/texture} for the source code. + +*/ diff --git a/examples/opengl/texture/texture.pro b/examples/opengl/texture/texture.pro new file mode 100644 index 000000000..a9a31b8ee --- /dev/null +++ b/examples/opengl/texture/texture.pro @@ -0,0 +1,14 @@ +TEMPLATE = app +TARGET = texture + +CONFIG += qt opengl warn_on release +CONFIG -= dlopen_opengl +DEPENDPATH = ../include + +REQUIRES = opengl + +HEADERS = gltexobj.h \ + globjwin.h +SOURCES = gltexobj.cpp \ + globjwin.cpp \ + main.cpp |