/*
*
* Private Functions
*
*/
void HeatmapGui::enableOrDisableOkButton()
{
bool enabled = true;
QString filename = mOutputRasterLineEdit->text();
QFileInfo theFileInfo( filename );
if ( filename.isEmpty() || !theFileInfo.dir().exists() || ( mInputLayerCombo->count() == 0 ) )
{
enabled = false;
}
mButtonBox->button( QDialogButtonBox::Ok )->setEnabled( enabled );
}
void QgsInterpolationDialog::enableOrDisableOkButton()
{
bool enabled = true;
//no input data
if ( mLayersTreeWidget->topLevelItemCount() < 1 )
{
enabled = false;
}
else
{
QString fileName = mOutputFileLineEdit->text();
QFileInfo theFileInfo( fileName );
if ( fileName.isEmpty() || !theFileInfo.dir().exists() )
{
enabled = false;
}
}
buttonBox->button( QDialogButtonBox::Ok )->setEnabled( enabled );
}
void QgsInterpolationDialog::on_buttonBox_accepted()
{
if ( !mInterpolatorDialog )
{
return;
}
QgsRectangle outputBBox = currentBoundingBox();
if ( outputBBox.isEmpty() )
{
return;
}
//warn the user if there isn't any input layer
if ( mLayersTreeWidget->topLevelItemCount() < 1 )
{
QMessageBox::information( nullptr, tr( "No input data for interpolation" ), tr( "Please add one or more input layers" ) );
return;
}
//read file name
QString fileName = mOutputFileLineEdit->text();
QFileInfo theFileInfo( fileName );
if ( fileName.isEmpty() || !theFileInfo.dir().exists() )
{
QMessageBox::information( nullptr, tr( "Output file name invalid" ), tr( "Please enter a valid output file name" ) );
return;
}
//add .asc suffix if the user did not provider it already
QString suffix = theFileInfo.suffix();
if ( suffix.isEmpty() )
{
fileName.append( ".asc" );
}
int nLayers = mLayersTreeWidget->topLevelItemCount();
QList< QgsInterpolator::LayerData > inputLayerList;
for ( int i = 0; i < nLayers; ++i )
{
QString layerName = mLayersTreeWidget->topLevelItem( i )->text( 0 );
QgsVectorLayer* theVectorLayer = vectorLayerFromName( layerName );
if ( !theVectorLayer )
{
continue;
}
QgsVectorDataProvider* theProvider = theVectorLayer->dataProvider();
if ( !theProvider )
{
continue;
}
QgsInterpolator::LayerData currentLayerData;
currentLayerData.vectorLayer = theVectorLayer;
QString interpolationAttString = mLayersTreeWidget->topLevelItem( i )->text( 1 );
if ( interpolationAttString == "Z_COORD" )
{
currentLayerData.zCoordInterpolation = true;
currentLayerData.interpolationAttribute = -1;
}
else
{
currentLayerData.zCoordInterpolation = false;
int attributeIndex = theProvider->fieldNameIndex( interpolationAttString );
currentLayerData.interpolationAttribute = attributeIndex;
}
//type (point/structure line/ breakline)
QComboBox* itemCombo = qobject_cast<QComboBox *>( mLayersTreeWidget->itemWidget( mLayersTreeWidget->topLevelItem( i ), 2 ) );
if ( itemCombo )
{
QString typeString = itemCombo->currentText();
if ( typeString == tr( "Break lines" ) )
{
currentLayerData.mInputType = QgsInterpolator::BREAK_LINES;
}
else if ( typeString == tr( "Structure lines" ) )
{
currentLayerData.mInputType = QgsInterpolator::STRUCTURE_LINES;
}
else //Points
{
currentLayerData.mInputType = QgsInterpolator::POINTS;
}
}
else
{
currentLayerData.mInputType = QgsInterpolator::POINTS;
}
inputLayerList.push_back( currentLayerData );
}
mInterpolatorDialog->setInputData( inputLayerList );
QgsInterpolator* theInterpolator = mInterpolatorDialog->createInterpolator();
if ( !theInterpolator )
{
return;
}
//create grid file writer
QgsGridFileWriter theWriter( theInterpolator, fileName, outputBBox, mNumberOfColumnsSpinBox->value(),
mNumberOfRowsSpinBox->value(), mCellsizeXSpinBox->value(), mCellSizeYSpinBox->value() );
if ( theWriter.writeFile( true ) == 0 )
{
if ( mAddResultToProjectCheckBox->isChecked() )
{
mIface->addRasterLayer( fileName, QFileInfo( fileName ).baseName() );
}
accept();
}
delete theInterpolator;
}
