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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-08 12:31:36 -0600
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-08 12:31:36 -0600
commitd796c9dd933ab96ec83b9a634feedd5d32e1ba3f (patch)
tree6e3dcca4f77e20ec8966c666aac7c35bd4704053 /examples/opengl/texture
downloadtqt3-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/README4
-rw-r--r--examples/opengl/texture/gllogo.bmpbin0 -> 17462 bytes
-rw-r--r--examples/opengl/texture/globjwin.cpp78
-rw-r--r--examples/opengl/texture/globjwin.h32
-rw-r--r--examples/opengl/texture/gltexobj.cpp240
-rw-r--r--examples/opengl/texture/gltexobj.h54
-rw-r--r--examples/opengl/texture/main.cpp42
-rw-r--r--examples/opengl/texture/qtlogo.bmpbin0 -> 17462 bytes
-rw-r--r--examples/opengl/texture/texture.doc10
-rw-r--r--examples/opengl/texture/texture.pro14
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
new file mode 100644
index 000000000..ee64a1036
--- /dev/null
+++ b/examples/opengl/texture/gllogo.bmp
Binary files differ
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
new file mode 100644
index 000000000..b7f9215d9
--- /dev/null
+++ b/examples/opengl/texture/qtlogo.bmp
Binary files differ
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