void QgsRasterCalcDialog::insertAvailableRasterBands()
{
const QMap<QString, QgsMapLayer*>& layers = QgsMapLayerRegistry::instance()->mapLayers();
QMap<QString, QgsMapLayer*>::const_iterator layerIt = layers.constBegin();
bool firstLayer = true;
for ( ; layerIt != layers.constEnd(); ++layerIt )
{
QgsRasterLayer* rlayer = dynamic_cast<QgsRasterLayer*>( layerIt.value() );
if ( rlayer && rlayer->dataProvider() && rlayer->dataProvider()->name() == "gdal" )
{
if ( firstLayer ) //set bounding box / resolution of output to the values of the first possible input layer
{
mNColumnsSpinBox->setValue( rlayer->width() );
mNRowsSpinBox->setValue( rlayer->height() );
QgsRectangle bbox = rlayer->extent();
mXMinSpinBox->setValue( bbox.xMinimum() );
mXMaxSpinBox->setValue( bbox.xMaximum() );
mYMinSpinBox->setValue( bbox.yMinimum() );
mYMaxSpinBox->setValue( bbox.yMaximum() );
firstLayer = false;
}
//get number of bands
for ( int i = 0; i < rlayer->bandCount(); ++i )
{
QgsRasterCalculatorEntry entry;
entry.raster = rlayer;
entry.bandNumber = i + 1;
entry.ref = rlayer->name() + '@' + QString::number( i + 1 );
mAvailableRasterBands.push_back( entry );
mRasterBandsListWidget->addItem( entry.ref );
}
}
}
}
void QgsZonalStatisticsDialog::insertAvailableLayers()
{
//insert available raster layers
//enter available layers into the combo box
QMap<QString, QgsMapLayer*> mapLayers = QgsMapLayerRegistry::instance()->mapLayers();
QMap<QString, QgsMapLayer*>::iterator layer_it = mapLayers.begin();
for ( ; layer_it != mapLayers.end(); ++layer_it )
{
QgsRasterLayer* rl = dynamic_cast<QgsRasterLayer*>( layer_it.value() );
if ( rl )
{
QgsRasterDataProvider* rp = rl->dataProvider();
if ( rp && rp->name() == "gdal" )
{
mRasterLayerComboBox->addItem( rl->name(), QVariant( rl->id() ) );
}
}
else
{
QgsVectorLayer* vl = dynamic_cast<QgsVectorLayer*>( layer_it.value() );
if ( vl && vl->geometryType() == QGis::Polygon )
{
QgsVectorDataProvider* provider = vl->dataProvider();
if ( provider->capabilities() & QgsVectorDataProvider::AddAttributes )
{
mPolygonLayerComboBox->addItem( vl->name(), QVariant( vl->id() ) );
}
}
}
}
}
void QgsRasterCalcDialog::insertAvailableRasterBands()
{
const QMap<QString, QgsMapLayer *> &layers = QgsProject::instance()->mapLayers();
QMap<QString, QgsMapLayer *>::const_iterator layerIt = layers.constBegin();
for ( ; layerIt != layers.constEnd(); ++layerIt )
{
QgsRasterLayer *rlayer = dynamic_cast<QgsRasterLayer *>( layerIt.value() );
if ( rlayer && rlayer->dataProvider() && rlayer->dataProvider()->name() == QLatin1String( "gdal" ) )
{
if ( !mExtentSizeSet ) //set bounding box / resolution of output to the values of the first possible input layer
{
setExtentSize( rlayer->width(), rlayer->height(), rlayer->extent() );
mCrsSelector->setCrs( rlayer->crs() );
}
//get number of bands
for ( int i = 0; i < rlayer->bandCount(); ++i )
{
QgsRasterCalculatorEntry entry;
entry.raster = rlayer;
entry.bandNumber = i + 1;
entry.ref = rlayer->name() + '@' + QString::number( i + 1 );
mAvailableRasterBands.push_back( entry );
mRasterBandsListWidget->addItem( entry.ref );
}
}
}
}
QgsRasterTerrainAnalysisDialog::QgsRasterTerrainAnalysisDialog( DisplayMode mode, QWidget * parent, Qt::WindowFlags f ): QDialog( parent, f )
{
setupUi( this );
QSettings s;
restoreGeometry( s.value( "/RasterTerrainAnalysis/geometry" ).toByteArray() );
if ( mode == HillshadeInput )
{
mReliefColorsGroupBox->setVisible( false );
mLightAzimuthAngleSpinBox->setValue( 300 );
mLightVerticalAngleSpinBox->setValue( 40 );
}
else if ( mode == ReliefInput )
{
mIlluminationGroupBox->setVisible( false );
}
else //no parameters
{
mReliefColorsGroupBox->setVisible( false );
mIlluminationGroupBox->setVisible( false );
}
adjustSize();
mZFactorLineEdit->setText( s.value( "/RasterTerrainAnalysis/zfactor", "1.0" ).toString() );
mZFactorLineEdit->setValidator( new QDoubleValidator( this ) );
//insert available raster layers
//enter available layers into the combo box
QMap<QString, QgsMapLayer*> mapLayers = QgsMapLayerRegistry::instance()->mapLayers();
QMap<QString, QgsMapLayer*>::iterator layer_it = mapLayers.begin();
//insert available input layers
for ( ; layer_it != mapLayers.end(); ++layer_it )
{
QgsRasterLayer* rl = qobject_cast<QgsRasterLayer *>( layer_it.value() );
if ( rl )
{
mElevationLayerComboBox->addItem( rl->name(), QVariant( rl->id() ) );
}
}
//insert available drivers that support the create() operation
GDALAllRegister();
int nDrivers = GDALGetDriverCount();
for ( int i = 0; i < nDrivers; ++i )
{
GDALDriverH driver = GDALGetDriver( i );
if ( driver != NULL )
{
char** driverMetadata = GDALGetMetadata( driver, NULL );
if ( CSLFetchBoolean( driverMetadata, GDAL_DCAP_CREATE, false ) )
{
mOutputFormatComboBox->addItem( GDALGetDriverLongName( driver ), QVariant( GDALGetDriverShortName( driver ) ) );
//store the driver shortnames and the corresponding extensions
//(just in case the user does not give an extension for the output file name)
QString driverExtension = GDALGetMetadataItem( driver, GDAL_DMD_EXTENSION, NULL );
mDriverExtensionMap.insert( QString( GDALGetDriverShortName( driver ) ), driverExtension );
}
}
}
//and set last used driver in combo box
QString lastUsedDriver = s.value( "/RasterTerrainAnalysis/lastOutputFormat", "GeoTIFF" ).toString();
int lastDriverIndex = mOutputFormatComboBox->findText( lastUsedDriver );
if ( lastDriverIndex != -1 )
{
mOutputFormatComboBox->setCurrentIndex( lastDriverIndex );
}
mButtonBox->button( QDialogButtonBox::Ok )->setEnabled( false );
}
