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//
// C++ Implementation: komposeglwidget
//
// Description:
//
//
// Author: Hans Oischinger <oisch@sourceforge.net>, (C) 2004
//
// Copyright: See COPYING file that comes with this distribution
//
//
#include "komposeglfullscreenwidget.h"
#include "komposelayout.h"
#include "komposetaskmanager.h"
#include "komposegldesktopwidget.h"
#include <kdebug.h>
#include <GL/gl.h>
#include <GL/glut.h>
KomposeGLFullscreenWidget::KomposeGLFullscreenWidget(QWidget *parent, const char *name) :
QGLWidget(parent, name)
{
qDebug("KomposeGLFullscreenWidget::KomposeGLFullscreenWidget()");
layout = new KomposeLayout( this );
setWindowState(Qt::WindowMaximized | Qt::WindowActive);
showFullScreen();
createDesktopWidgets();
}
KomposeGLFullscreenWidget::~KomposeGLFullscreenWidget()
{}
void KomposeGLFullscreenWidget::createDesktopWidgets()
{
// Create a Widget for every desktop
for (int i=0; i < KomposeTaskManager::instance()->getNumDesktops(); ++i)
{
int row = i / 2;
int col = i % 2;
//qDebug("rc %d %d", row, col);
desktop[i] = new KomposeGLDesktopWidget(i, this);
layout->add(dynamic_cast<KomposeWidgetInterface*>(desktop[i]));
}
}
void KomposeGLFullscreenWidget::initializeGL()
{
// Set up the rendering context, define display lists etc.:
if( !format().hasOpenGL() )
{
qWarning( "KomposeGLFullscreenWidget::initializeGL() - OpenGL not supported!" );
return;
}
if ( !format().doubleBuffer() )
{
qWarning( "KomposeGLFullscreenWidget::initializeGL() - Direct rendering enabled !" );
}
// glShadeModel(GL_SMOOTH);
//
// format().setDirectRendering( true );
// format().setDoubleBuffer( true );
// format().setRgba( true );
// format().setDepth ( false );
// format().setAccum( false );
// format().setStencil( false );
// format().setAlpha( true );
// Alpha blend
// glEnable( GL_BLEND );
// glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
// All smoothing stuff
// glEnable( GL_POLYGON_SMOOTH );
// glHint( GL_POLYGON_SMOOTH_HINT, GL_FASTEST );
// glEnable( GL_POINT_SMOOTH );
// glHint( GL_POINT_SMOOTH_HINT, GL_FASTEST );
// glEnable( GL_LINE_SMOOTH );
// glHint( GL_LINE_SMOOTH_HINT, GL_FASTEST );
// Lighting and Depth Test
glDisable( GL_LIGHTING );
// glDisable( GL_DEPTH_TEST );
// glDisable( GL_NORMALIZE );
glClearColor( 0.0, 0.0, 0.0, 0.0 );
glClear( GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_ACCUM_BUFFER_BIT );
/*! Setup sizes */
// glLineWidth( 1.0 );
// glPointSize( 2.0 );
setOrthographicProjection();
}
void KomposeGLFullscreenWidget::resizeGL( int w, int h )
{
// setup viewport, projection etc.:
setOrthographicProjection();
layout->arrangeLayout();
}
/*! draw OpenGL scene ( called from Qt ) */
void KomposeGLFullscreenWidget::paintGL()
{
qDebug("KomposeGLFullscreenWidget::paintGL()");
glPushMatrix();
// clears the color buffer (this will set the window to black)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Draw Desktop Widgets
for (int i=0; i < KomposeTaskManager::instance()->getNumDesktops(); ++i)
{
// FIXME: Make desktop arrays dynamic or at least avoid KomposeTaskManager::instance()->getNumDesktops() here
desktop[i]->draw();
}
glFlush();
glPopMatrix();
}
void KomposeGLFullscreenWidget::setOrthographicProjection()
{
qDebug("KomposeGLFullscreenWidget::setOrthographicProjection() - %dx%d", width(), height());
glViewport( 0, 0, (GLint)width(), (GLint)height() );
// switch to projection mode
glMatrixMode(GL_PROJECTION);
// reset matrix
glLoadIdentity();
// set a 2D orthographic projection
gluOrtho2D(0.0, (GLdouble)width(), 0.0, (GLdouble)height());
// invert the y axis, down is positive
glScalef(1, -1, 1);
// mover the origin from the bottom left corner
// to the upper left corner
glTranslatef(0, -height(), 0);
glMatrixMode(GL_MODELVIEW);;
}
// Redirect these functions to QGLWidget
void KomposeGLFullscreenWidget::setGeom ( const QRect &rect )
{
QGLWidget::setGeometry( rect );
}
void KomposeGLFullscreenWidget::setGeom ( const QSize &size )
{
QGLWidget::resize( size );
}
QSize KomposeGLFullscreenWidget::getSize() const
{
return QGLWidget::size();
}
QRect KomposeGLFullscreenWidget::getRect() const
{
return QGLWidget::rect();
}
void KomposeGLFullscreenWidget::removeChildWidget( KomposeWidgetInterface* obj )
{
QGLWidget::removeChild((QObject *) obj);
}
#include "komposeglfullscreenwidget.moc"
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