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//
// C++ Implementation: komposegltaskwidget
//
// Description:
//
//
// Author: Hans Oischinger <oisch@sourceforge.net>, (C) 2004
//
// Copyright: See COPYING file that comes with this distribution
//
//
#include "komposegltaskwidget.h"
#include "komposetaskmanager.h"
#include "komposetask.h"
#include "komposelayout.h"
#include <kdebug.h>
#include <qgl.h>
#include <qimage.h>
KomposeGLTaskWidget::KomposeGLTaskWidget(KomposeTask *t, QObject *parent, KomposeLayout *l, const char *name)
: KomposeGLWidget(parent, l),
task(t)
{
QImage img = task->getScreenshot().convertToImage();
img = img.smoothScale( 256, 256, QImage::ScaleMin );
tex = QGLWidget::convertToGLFormat( img );
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
/* glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); // cheap scaling when image bigger than texture
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); // cheap scaling when image smalled than texture*/
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR); // scale linearly when image bigger than texture
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR); // scale linearly when image smalled than texture
glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
glTexImage2D( GL_TEXTURE_2D, 0, 3, 256, 256, 0,
GL_RGBA, GL_UNSIGNED_BYTE, tex.bits() );
connect( t, SIGNAL( closed() ), this, SLOT( slotTaskDestroyed() ) );
connect( t, SIGNAL( stateChanged() ), this, SLOT( draw() ) );
}
KomposeGLTaskWidget::~KomposeGLTaskWidget()
{}
void KomposeGLTaskWidget::slotTaskDestroyed()
{
disconnect( task, SIGNAL( closed() ), this, SLOT( slotTaskDestroyed() ) );
disconnect( task, SIGNAL( stateChanged() ), this, SLOT( draw() ) );
if (KomposeTaskManager::instance()->hasActiveView())
{
this->parent()->removeChild( this );
}
}
int KomposeGLTaskWidget::getHeightForWidth ( int w ) const
{
qDebug("KomposeGLTaskWidget::getHeightForWidth()");
return task->getHeightForWidth(w);
}
int KomposeGLTaskWidget::getWidthForHeight ( int h ) const
{
qDebug("KomposeGLTaskWidget::getWidthForHeight()");
return task->getWidthForHeight(h);
}
double KomposeGLTaskWidget::getAspectRatio()
{
qDebug("KomposeGLTaskWidget::getAspectRatio()");
return task->getAspectRatio();
}
void KomposeGLTaskWidget::draw()
{
KomposeGLWidget::draw();
qDebug("KomposeGLTaskWidget::draw() - %d,%d %dx%d", getRect().x(), getRect().y(), getRect().width(), getRect().height());
glColor3f(1.0f, 0.0f, 0.0f);
glBindTexture(GL_TEXTURE_2D, texture);
/* glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );*/
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
glEnable( GL_TEXTURE_2D );
// glTexImage2D( GL_TEXTURE_2D, 0, 3, tex.width(), tex.height(), 0,
// GL_RGBA, GL_UNSIGNED_BYTE, tex.bits() );
// qDebug("KomposeGLTaskWidget::draw() - tex: %dx%d", tex.width(), tex.height() );
glBegin( GL_QUADS );
glTexCoord2f(0.0, 0.0);
glVertex2i( getRect().x(), getRect().y() );
glTexCoord2f(0.0, 1.0);
glVertex2i( getRect().x(), getRect().y() + getRect().height() );
glTexCoord2f(1.0, 1.0);
glVertex2i( getRect().x() + getRect().width(), getRect().y() + getRect().height() );
glTexCoord2f(1.0, 0.0);
glVertex2i( getRect().x() + getRect().width(), getRect().y() );
glEnd();
glDisable( GL_TEXTURE_2D );
/*
glRasterPos2i (getRect().x(), getRect().y());
glPixelZoom( (GLfloat)(getSize().width())/(GLfloat)(tex.width()), (GLfloat)(getSize().height())/(GLfloat)(tex.height()) );
glDrawPixels(tex.width(), tex.height(), GL_RGBA, GL_UNSIGNED_BYTE, tex.bits() ); */
}
#include "komposegltaskwidget.moc"
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