void QgsMultiBandColorRendererWidget::setFromRenderer( const QgsRasterRenderer *r )
{
const QgsMultiBandColorRenderer *mbcr = dynamic_cast<const QgsMultiBandColorRenderer *>( r );
if ( mbcr )
{
mRedBandComboBox->setBand( mbcr->redBand() );
mGreenBandComboBox->setBand( mbcr->greenBand() );
mBlueBandComboBox->setBand( mbcr->blueBand() );
mDisableMinMaxWidgetRefresh = true;
setMinMaxValue( mbcr->redContrastEnhancement(), mRedMinLineEdit, mRedMaxLineEdit );
setMinMaxValue( mbcr->greenContrastEnhancement(), mGreenMinLineEdit, mGreenMaxLineEdit );
setMinMaxValue( mbcr->blueContrastEnhancement(), mBlueMinLineEdit, mBlueMaxLineEdit );
mDisableMinMaxWidgetRefresh = false;
mMinMaxWidget->setFromMinMaxOrigin( mbcr->minMaxOrigin() );
}
else
{
if ( mRedBandComboBox->findText( tr( "Red" ) ) > -1 && mRedBandComboBox->findText( tr( "Green" ) ) > -1 &&
mRedBandComboBox->findText( tr( "Blue" ) ) > -1 )
{
mRedBandComboBox->setCurrentIndex( mRedBandComboBox->findText( tr( "Red" ) ) );
mGreenBandComboBox->setCurrentIndex( mGreenBandComboBox->findText( tr( "Green" ) ) );
mBlueBandComboBox->setCurrentIndex( mBlueBandComboBox->findText( tr( "Blue" ) ) );
}
else
{
mRedBandComboBox->setCurrentIndex( mRedBandComboBox->count() > 1 ? 1 : 0 );
mGreenBandComboBox->setCurrentIndex( mRedBandComboBox->count() > 2 ? 2 : 0 );
mBlueBandComboBox->setCurrentIndex( mRedBandComboBox->count() > 3 ? 3 : 0 );
}
}
}
void TabDialog::hellreset() {
selImage->brightness=0;
selImage->contrast=0;
sliderwechsel();
setMinMaxValue();
emit newColtype();
}
void TabDialog::apply() {
// min und max in gray value table
if (strlen(VNewString(tablemin->text()))>0 && strlen(VNewString(tablemax->text()))>0) {
float ymax = (float)selImage->maxwert;
float ymin = (float)selImage->minwert;
float ymaxmin = (float)(ymax - ymin);
float min1 = atof(strtok(VNewString(tablemin->text())," "));
float max1 = atof(strtok(VNewString(tablemax->text())," "));
if (min1 > max1) {
tablemin->setText(tr("%1").arg(selImage->minwert1));
tablemax->setText(tr("%1").arg(selImage->maxwert1));
} else {
selImage->anamean = min1;
selImage->anaalpha = (float)255.0/(max1 - selImage->anamean);
int newbrig = (int)rint(stretch*(ymin - selImage->anamean + (ymaxmin - 255.0/selImage->anaalpha)/2.0)/ymaxmin);
int newhell = (int)rint(log(selImage->anaalpha*ymaxmin/255.0)/log(stretchfact));
if ((newbrig>=-100 && newbrig<=100) && (newhell>=-100 && newhell<=100)) {
brig->setValue(newbrig);
hell->setValue(newhell);
} else {
brig->setEnabled( FALSE );
hell->setEnabled( FALSE );
lbrigbr->setEnabled( FALSE );
lwhit->setEnabled( FALSE );
}
setMinMaxValue();
emit newColtype();
}
} else {
tablemin->setText(tr("%1").arg(selImage->minwert1));
tablemax->setText(tr("%1").arg(selImage->maxwert1));
}
emit newColtype();
}
void QgsMultiBandColorRendererWidget::setFromRenderer( const QgsRasterRenderer* r )
{
const QgsMultiBandColorRenderer* mbcr = dynamic_cast<const QgsMultiBandColorRenderer*>( r );
if ( mbcr )
{
mRedBandComboBox->setCurrentIndex( mRedBandComboBox->findData( mbcr->redBand() ) );
mGreenBandComboBox->setCurrentIndex( mGreenBandComboBox->findData( mbcr->greenBand() ) );
mBlueBandComboBox->setCurrentIndex( mBlueBandComboBox->findData( mbcr->blueBand() ) );
setMinMaxValue( mbcr->redContrastEnhancement(), mRedMinLineEdit, mRedMaxLineEdit );
setMinMaxValue( mbcr->greenContrastEnhancement(), mGreenMinLineEdit, mGreenMaxLineEdit );
setMinMaxValue( mbcr->blueContrastEnhancement(), mBlueMinLineEdit, mBlueMaxLineEdit );
}
else
{
mRedBandComboBox->setCurrentIndex( mRedBandComboBox->findText( tr( "Red" ) ) );
mGreenBandComboBox->setCurrentIndex( mGreenBandComboBox->findText( tr( "Green" ) ) );
mBlueBandComboBox->setCurrentIndex( mBlueBandComboBox->findText( tr( "Blue" ) ) );
}
}
void TabDialog::helligkeit(int mean) {
selImage->brightness=mean;
float ymax = (float)selImage->maxwert;
float ymin = (float)selImage->minwert;
float ymaxmin = (float)(ymax - ymin);
shift = (float)mean * ymaxmin/stretch;
selImage->anaalpha = factor * 255.0 / ymaxmin;
selImage->anamean = (float)ymin - shift + (ymaxmin - 255.0/selImage->anaalpha)/2.0 ;
setMinMaxValue();
emit newColtype();
}
void TabDialog::contrastl(int alpha) {
selImage->contrast=alpha;
float ymax = (float)selImage->maxwert;
float ymin = (float)selImage->minwert;
float ymaxmin = (float)(ymax - ymin);
factor = (float)pow(stretchfact,(double)alpha);
selImage->anaalpha = factor * 255.0 / ymaxmin;
selImage->anamean = (float)ymin - shift + (ymaxmin - 255.0/selImage->anaalpha)/2.0 ;
setMinMaxValue();
emit newColtype();
}
void TabDialog::setupTab5()
{
QVBox *tab5 = new QVBox( this );
tab5->setMargin( 5 );
QButtonGroup *cont;
cont = new QButtonGroup( 1, QGroupBox::Horizontal, "contrast / brightness", tab5 );
brig = new QSlider( cont, "mean" );
brig->setOrientation ( Horizontal );
brig->setValue ( 0 );
brig->setRange( -100, 100 );
brig->setTickInterval ( 100 );
brig->setTickmarks(QSlider::TickSetting(3));
QObject::connect( brig, SIGNAL(valueChanged(int)), this, SLOT( helligkeit(int) ) );
lbrigbr = new QLabel( "brightness", cont );
hell = new QSlider( cont, "alpha" );
hell->setOrientation ( Horizontal );
hell->setValue ( 0 );
hell->setRange( -100, 100 );
hell->setTickInterval ( 100 );
hell->setTickmarks(QSlider::TickSetting(3));
lwhit = new QLabel( "contrast", cont );
QObject::connect( hell, SIGNAL(valueChanged(int)), this, SLOT( contrastl(int) ) );
QButtonGroup *table_minmax = new QButtonGroup( 2, QGroupBox::Horizontal, "Gray value table", cont );
QButtonGroup *table_min = new QButtonGroup( 1, QGroupBox::Horizontal, "minimum", table_minmax );
tablemin = new QLineEdit( tr("%1").arg(selImage->minwert1), table_min );
tablemin->setFocus();
QButtonGroup *table_max = new QButtonGroup( 1, QGroupBox::Horizontal, "maximum", table_minmax );
tablemax = new QLineEdit( tr("%1").arg(selImage->maxwert1), table_max );
tablemax->setFocus();
setMinMaxValue();
Reset = new QPushButton ( "Reset", cont );
if (selImage->pixel_repn == VBitRepn) {
Reset->setEnabled( FALSE );
lbrigbr->setEnabled( FALSE );
lwhit->setEnabled( FALSE );
brig->setEnabled( FALSE );
hell->setEnabled( FALSE );
}
connect( Reset, SIGNAL(clicked()), SLOT(hellreset()) );
addTab( tab5, "Contrast" );
}
