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qgsgrassmoduleparam.cpp
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qgsgrassmoduleparam.cpp
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/***************************************************************************
qgsgrassmoduleparam.cpp
-------------------
begin : August, 2015
copyright : (C) 2015 by Radim Blazek
email : radim.blazek@gmail.com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include <QFileDialog>
#include <QFileInfo>
#include <QMessageBox>
#include <QSettings>
#include "qgis.h"
#include "qgsdatasourceuri.h"
#include "qgslogger.h"
#include "qgsmaplayer.h"
#include "qgsmaplayerregistry.h"
#include "qgsrasterlayer.h"
#include "qgsvectorlayer.h"
#include "qgsgrass.h"
#include "qgsgrassmodule.h"
#include "qgsgrassmoduleparam.h"
#include "qgsgrassplugin.h"
#include "qgsgrassprovider.h"
extern "C"
{
#if GRASS_VERSION_MAJOR < 7
#include <grass/Vect.h>
#else
#include <grass/vector.h>
#endif
}
/********************** QgsGrassModuleParam *************************/
QgsGrassModuleParam::QgsGrassModuleParam( QgsGrassModule *module, QString key,
QDomElement &qdesc, QDomElement &gdesc, QDomNode &gnode, bool direct )
: mModule( module )
, mKey( key )
, mHidden( false )
, mRequired( false )
, mDirect( direct )
{
Q_UNUSED( gdesc );
//mAnswer = qdesc.attribute("answer", "");
if ( !qdesc.attribute( "answer" ).isNull() )
{
mAnswer = qdesc.attribute( "answer" ).trimmed();
}
else
{
QDomNode n = gnode.namedItem( "default" );
if ( !n.isNull() )
{
QDomElement e = n.toElement();
mAnswer = e.text().trimmed();
}
}
if ( qdesc.attribute( "hidden" ) == "yes" )
{
mHidden = true;
}
QString label, description;
if ( !qdesc.attribute( "label" ).isEmpty() )
{
label = QApplication::translate( "grasslabel", qdesc.attribute( "label" ).trimmed().toUtf8() );
}
if ( label.isEmpty() )
{
QDomNode n = gnode.namedItem( "label" );
if ( !n.isNull() )
{
QDomElement e = n.toElement();
label = module->translate( e.text() );
}
}
QDomNode n = gnode.namedItem( "description" );
if ( !n.isNull() )
{
QDomElement e = n.toElement();
description = module->translate( e.text() );
}
if ( !label.isEmpty() )
{
mTitle = label;
mToolTip = description;
}
else
{
mTitle = description;
}
if ( gnode.toElement().attribute( "required" ) == "yes" )
{
mRequired = true;
}
mId = qdesc.attribute( "id" );
}
QgsGrassModuleParam::~QgsGrassModuleParam() {}
bool QgsGrassModuleParam::hidden()
{
return mHidden;
}
QStringList QgsGrassModuleParam::options()
{
return QStringList();
}
QString QgsGrassModuleParam::getDescPrompt( QDomElement descDomElement )
{
QDomNode gispromptNode = descDomElement.namedItem( "gisprompt" );
if ( !gispromptNode.isNull() )
{
QDomElement gispromptElement = gispromptNode.toElement();
if ( !gispromptElement.isNull() )
{
return gispromptElement.attribute( "prompt" );
}
}
return QString();
}
QDomNode QgsGrassModuleParam::nodeByKey( QDomElement descDomElement, QString key )
{
QgsDebugMsg( "called with key=" + key );
QDomNode n = descDomElement.firstChild();
while ( !n.isNull() )
{
QDomElement e = n.toElement();
if ( !e.isNull() )
{
if ( e.tagName() == "parameter" || e.tagName() == "flag" )
{
if ( e.attribute( "name" ) == key )
{
return n;
}
}
}
n = n.nextSibling();
}
return QDomNode();
}
QList<QDomNode> QgsGrassModuleParam::nodesByType( QDomElement descDomElement, STD_OPT optionType )
{
// TODO: never tested
QList<QDomNode> nodes;
// Not all options have prompt set, for example G_OPT_V_TYPE and G_OPT_V_FIELD, which would be useful, don't have prompt
QMap<QString, STD_OPT> typeMap;
#if GRASS_VERSION_MAJOR < 7
typeMap.insert( "dbtable", G_OPT_TABLE );
typeMap.insert( "dbdriver", G_OPT_DRIVER );
typeMap.insert( "dbname", G_OPT_DATABASE );
typeMap.insert( "dbcolumn", G_OPT_COLUMN );
#else
typeMap.insert( "dbtable", G_OPT_DB_TABLE );
typeMap.insert( "dbdriver", G_OPT_DB_DRIVER );
typeMap.insert( "dbname", G_OPT_DB_DATABASE );
typeMap.insert( "dbcolumn", G_OPT_DB_COLUMN );
#endif
QDomNode n = descDomElement.firstChild();
while ( !n.isNull() )
{
QString prompt = getDescPrompt( n.toElement() );
if ( typeMap.value( prompt ) == optionType )
{
nodes << n;
}
n = n.nextSibling();
}
return nodes;
}
/********************** QgsGrassModuleOption *************************/
void QgsGrassModuleOption::addLineEdit()
{
QgsDebugMsg( "called." );
// TODO make the widget growing with new lines. HOW???!!!
QLineEdit *lineEdit = new QLineEdit( this );
mLineEdits.push_back( lineEdit );
lineEdit->setText( mAnswer );
if ( mValueType == Integer )
{
if ( mHaveLimits )
{
mValidator = new QIntValidator(( int )mMin, ( int )mMax, this );
}
else
{
mValidator = new QIntValidator( this );
}
lineEdit->setValidator( mValidator );
}
else if ( mValueType == Double )
{
if ( mHaveLimits )
{
mValidator = new QDoubleValidator( mMin, mMax, 10, this );
}
else
{
mValidator = new QDoubleValidator( this );
}
lineEdit->setValidator( mValidator );
}
else if ( mIsOutput )
{
QRegExp rx;
if ( mOutputType == Vector )
{
rx.setPattern( "[A-Za-z_][A-Za-z0-9_]+" );
}
else
{
rx.setPattern( "[A-Za-z0-9_.]+" );
}
mValidator = new QRegExpValidator( rx, this );
lineEdit->setValidator( mValidator );
}
if ( mIsOutput && mDirect )
{
QHBoxLayout *l = new QHBoxLayout();
l->addWidget( lineEdit );
lineEdit->setSizePolicy( QSizePolicy::Expanding, QSizePolicy:: Preferred );
QPushButton *button = new QPushButton( tr( "Browse" ) );
l->addWidget( button );
mLayout->addItem( l );
connect( button, SIGNAL( clicked( bool ) ), this, SLOT( browse( bool ) ) );
}
else
{
mLayout->addWidget( lineEdit );
}
}
void QgsGrassModuleOption::browse( bool checked )
{
Q_UNUSED( checked );
QgsDebugMsg( "called." );
QSettings settings;
QString lastDir = settings.value( "/GRASS/lastDirectOutputDir", "" ).toString();
QString fileName = QFileDialog::getSaveFileName( this, tr( "Output file" ), lastDir, tr( "GeoTIFF" ) + " (*.tif)" );
if ( !fileName.isEmpty() )
{
if ( !fileName.endsWith( ".tif", Qt::CaseInsensitive ) && !fileName.endsWith( ".tiff", Qt::CaseInsensitive ) )
{
fileName = fileName + ".tif";
}
mLineEdits.at( 0 )->setText( fileName );
settings.setValue( "/GRASS/lastDirectOutputDir", QFileInfo( fileName ).absolutePath() );
}
}
void QgsGrassModuleOption::removeLineEdit()
{
QgsDebugMsg( "called." );
if ( mLineEdits.size() < 2 )
return;
delete mLineEdits.at( mLineEdits.size() - 1 );
mLineEdits.pop_back();
}
QString QgsGrassModuleOption::outputExists()
{
QgsDebugMsg( "called." );
if ( !mIsOutput )
return QString();
QLineEdit *lineEdit = mLineEdits.at( 0 );
QString value = lineEdit->text().trimmed();
QgsDebugMsg( "mKey = " + mKey );
QgsDebugMsg( "value = " + value );
QgsDebugMsg( "mOutputElement = " + mOutputElement );
if ( value.length() == 0 )
return QString();
QString path = QgsGrass::getDefaultGisdbase() + "/"
+ QgsGrass::getDefaultLocation() + "/"
+ QgsGrass::getDefaultMapset() + "/"
+ mOutputElement + "/" + value;
QFileInfo fi( path );
if ( fi.exists() )
{
return ( lineEdit->text() );
}
return QString();
}
QString QgsGrassModuleOption::value()
{
QString value;
if ( mControlType == LineEdit )
{
for ( int i = 0; i < mLineEdits.size(); i++ )
{
QLineEdit *lineEdit = mLineEdits.at( i );
if ( lineEdit->text().trimmed().length() > 0 )
{
if ( value.length() > 0 )
value.append( "," );
value.append( lineEdit->text().trimmed() );
}
}
}
else if ( mControlType == ComboBox )
{
value = mValues[mComboBox->currentIndex()];
}
else if ( mControlType == CheckBoxes )
{
QStringList values;
for ( int i = 0; i < mCheckBoxes.size(); ++i )
{
if ( mCheckBoxes[i]->isChecked() )
{
values.append( mValues[i] );
}
}
value = values.join( "," );
}
return value;
}
bool QgsGrassModuleOption::checkVersion( const QString& version_min, const QString& version_max, QStringList& errors )
{
QgsDebugMsg( "version_min = " + version_min );
QgsDebugMsg( "version_max = " + version_max );
bool minOk = true;
bool maxOk = true;
QRegExp rxVersionMajor( "(\\d+)" );
QRegExp rxVersion( "(\\d+)\\.(\\d+)" );
if ( !version_min.isEmpty() )
{
if ( rxVersion.exactMatch( version_min ) )
{
int versionMajorMin = rxVersion.cap( 1 ).toInt();
int versionMinorMin = rxVersion.cap( 2 ).toInt();
if ( QgsGrass::versionMajor() < versionMajorMin || ( QgsGrass::versionMajor() == versionMajorMin && QgsGrass::versionMinor() < versionMinorMin ) )
{
minOk = false;
}
}
else if ( rxVersionMajor.exactMatch( version_min ) )
{
int versionMajorMin = rxVersionMajor.cap( 1 ).toInt();
if ( QgsGrass::versionMajor() < versionMajorMin )
{
minOk = false;
}
}
else
{
errors << tr( "Cannot parse version_min %1" ).arg( version_min );
}
}
if ( !version_max.isEmpty() )
{
if ( rxVersion.exactMatch( version_max ) )
{
int versionMajorMax = rxVersion.cap( 1 ).toInt();
int versionMinorMax = rxVersion.cap( 2 ).toInt();
if ( QgsGrass::versionMajor() > versionMajorMax || ( QgsGrass::versionMajor() == versionMajorMax && QgsGrass::versionMinor() > versionMinorMax ) )
{
maxOk = false;
}
}
else if ( rxVersionMajor.exactMatch( version_max ) )
{
int versionMajorMax = rxVersionMajor.cap( 1 ).toInt();
if ( QgsGrass::versionMajor() > versionMajorMax )
{
maxOk = false;
}
}
else
{
errors << tr( "Cannot parse version_max %1" ).arg( version_max );
}
}
return errors.isEmpty() && minOk && maxOk;
}
QStringList QgsGrassModuleOption::options()
{
QStringList list;
if ( mHidden )
{
list.push_back( mKey + "=" + mAnswer );
}
else
{
QString val = value();
if ( !val.isEmpty() )
{
list.push_back( mKey + "=" + val );
}
}
return list;
}
QString QgsGrassModuleOption::ready()
{
QgsDebugMsg( "called." );
QString error;
if ( mControlType == LineEdit )
{
if ( mLineEdits.at( 0 )->text().trimmed().length() == 0 && mRequired )
{
error.append( tr( "%1: missing value" ).arg( title() ) );
}
}
return error;
}
QgsGrassModuleOption::~QgsGrassModuleOption()
{
}
/***************** QgsGrassModuleFlag *********************/
QgsGrassModuleFlag::QgsGrassModuleFlag( QgsGrassModule *module, QString key,
QDomElement &qdesc, QDomElement &gdesc, QDomNode &gnode,
bool direct, QWidget * parent )
: QgsGrassModuleCheckBox( "", parent ), QgsGrassModuleParam( module, key, qdesc, gdesc, gnode, direct )
{
QgsDebugMsg( "called." );
if ( mHidden )
hide();
if ( mAnswer == "on" )
setChecked( true );
else
setChecked( false );
setText( mTitle );
setToolTip( mToolTip );
}
QStringList QgsGrassModuleFlag::options()
{
QStringList list;
if ( isChecked() )
{
list.push_back( "-" + mKey );
}
return list;
}
QgsGrassModuleFlag::~QgsGrassModuleFlag()
{
}
/************************** QgsGrassModuleInput ***************************/
QgsGrassModuleInput::QgsGrassModuleInput( QgsGrassModule *module,
QgsGrassModuleStandardOptions *options, QString key,
QDomElement &qdesc, QDomElement &gdesc, QDomNode &gnode,
bool direct, QWidget * parent )
: QgsGrassModuleGroupBoxItem( module, key, qdesc, gdesc, gnode, direct, parent )
, mType( QgsGrassModuleInput::Vector )
, mModuleStandardOptions( options )
, mGeometryTypeOption( "" )
, mVectorLayerOption( "" )
, mLayerComboBox( 0 )
, mRegionButton( 0 )
, mUpdate( false )
, mUsesRegion( false )
, mRequired( false )
{
QgsDebugMsg( "called." );
mGeometryTypeMask = GV_POINT | GV_LINE | GV_AREA;
if ( mTitle.isEmpty() )
{
mTitle = tr( "Input" );
}
adjustTitle();
// Check if this parameter is required
mRequired = gnode.toElement().attribute( "required" ) == "yes";
QDomNode promptNode = gnode.namedItem( "gisprompt" );
QDomElement promptElem = promptNode.toElement();
QString element = promptElem.attribute( "element" );
if ( element == "vector" )
{
mType = Vector;
// Read type mask if "typeoption" is defined
QString opt = qdesc.attribute( "typeoption" );
if ( ! opt.isNull() )
{
QDomNode optNode = nodeByKey( gdesc, opt );
if ( optNode.isNull() )
{
mErrors << tr( "Cannot find typeoption %1" ).arg( opt );
}
else
{
mGeometryTypeOption = opt;
QDomNode valuesNode = optNode.namedItem( "values" );
if ( valuesNode.isNull() )
{
mErrors << tr( "Cannot find values for typeoption %1" ).arg( opt );
}
else
{
mGeometryTypeMask = 0; //GV_POINT | GV_LINE | GV_AREA;
QDomElement valuesElem = valuesNode.toElement();
QDomNode valueNode = valuesElem.firstChild();
while ( !valueNode.isNull() )
{
QDomElement valueElem = valueNode.toElement();
if ( !valueElem.isNull() && valueElem.tagName() == "value" )
{
QDomNode n = valueNode.namedItem( "name" );
if ( !n.isNull() )
{
QDomElement e = n.toElement();
QString val = e.text().trimmed();
if ( val == "point" )
{
mGeometryTypeMask |= GV_POINT;
}
else if ( val == "line" )
{
mGeometryTypeMask |= GV_LINE;
}
else if ( val == "area" )
{
mGeometryTypeMask |= GV_AREA;
}
}
}
valueNode = valueNode.nextSibling();
}
}
}
}
// Read type mask defined in configuration
opt = qdesc.attribute( "typemask" );
if ( ! opt.isNull() )
{
int mask = 0;
if ( opt.indexOf( "point" ) >= 0 )
{
mask |= GV_POINT;
}
if ( opt.indexOf( "line" ) >= 0 )
{
mask |= GV_LINE;
}
if ( opt.indexOf( "area" ) >= 0 )
{
mask |= GV_AREA;
}
mGeometryTypeMask &= mask;
}
// Read "layeroption" if defined
opt = qdesc.attribute( "layeroption" );
if ( ! opt.isNull() )
{
QDomNode optNode = nodeByKey( gdesc, opt );
if ( optNode.isNull() )
{
mErrors << tr( "Cannot find layeroption %1" ).arg( opt );
}
else
{
mVectorLayerOption = opt;
}
}
// Read "mapid"
mMapId = qdesc.attribute( "mapid" );
}
else if ( element == "cell" )
{
mType = Raster;
}
else
{
mErrors << tr( "GRASS element %1 not supported" ).arg( element );
}
if ( qdesc.attribute( "update" ) == "yes" )
{
mUpdate = true;
}
QHBoxLayout *l = new QHBoxLayout( this );
mLayerComboBox = new QComboBox();
mLayerComboBox->setSizePolicy( QSizePolicy::Expanding, QSizePolicy:: Preferred );
l->addWidget( mLayerComboBox );
QString region = qdesc.attribute( "region" );
if ( mType == Raster
&& QgsGrass::versionMajor() >= 6 && QgsGrass::versionMinor() >= 1
&& region != "no"
)
{
mRegionButton = new QPushButton(
QgsGrassPlugin::getThemeIcon( "grass_set_region.png" ), "" );
mRegionButton->setToolTip( tr( "Use region of this map" ) );
mRegionButton->setCheckable( true );
mRegionButton->setSizePolicy( QSizePolicy::Minimum,
QSizePolicy:: Preferred );
if ( !mDirect )
{
l->addWidget( mRegionButton );
}
}
connect( QgsMapLayerRegistry::instance(), SIGNAL( layersAdded( QList<QgsMapLayer *> ) ),
this, SLOT( updateQgisLayers() ) );
connect( QgsMapLayerRegistry::instance(), SIGNAL( layersRemoved( QStringList ) ),
this, SLOT( updateQgisLayers() ) );
connect( mLayerComboBox, SIGNAL( activated( int ) ), this, SLOT( changed( int ) ) );
if ( !mMapId.isEmpty() )
{
QgsGrassModuleParam *item = mModuleStandardOptions->item( mMapId );
if ( item )
{
QgsGrassModuleInput *mapInput = dynamic_cast<QgsGrassModuleInput *>( item );
connect( mapInput, SIGNAL( valueChanged() ), this, SLOT( updateQgisLayers() ) );
}
}
mUsesRegion = false;
if ( region.length() > 0 )
{
if ( region == "yes" )
mUsesRegion = true;
}
else
{
if ( type() == Raster )
mUsesRegion = true;
}
// Fill in QGIS layers
updateQgisLayers();
}
bool QgsGrassModuleInput::useRegion()
{
QgsDebugMsg( "called." );
return mUsesRegion && mType == Raster && mRegionButton && mRegionButton->isChecked();
}
void QgsGrassModuleInput::updateQgisLayers()
{
QgsDebugMsg( "called." );
QString current = mLayerComboBox->currentText();
mLayerComboBox->clear();
mMaps.clear();
mGeometryTypes.clear();
mVectorLayerNames.clear();
mMapLayers.clear();
mBands.clear();
mVectorFields.clear();
// If not required, add an empty item to combobox and a padding item into
// layer containers.
if ( !mRequired )
{
mMaps.push_back( QString( "" ) );
mVectorLayerNames.push_back( QString( "" ) );
mMapLayers.push_back( NULL );
mBands.append( 0 );
mLayerComboBox->addItem( tr( "Select a layer" ), QVariant() );
}
// Find map option
QString sourceMap;
if ( !mMapId.isEmpty() )
{
QgsGrassModuleParam *item = mModuleStandardOptions->item( mMapId );
if ( item )
{
QgsGrassModuleInput *mapInput = dynamic_cast<QgsGrassModuleInput *>( item );
if ( mapInput )
sourceMap = mapInput->currentMap();
}
}
// Note: QDir::cleanPath is using '/' also on Windows
//QChar sep = QDir::separator();
QChar sep = '/';
//QgsMapCanvas *canvas = mModule->qgisIface()->mapCanvas();
//int nlayers = canvas->layerCount();
foreach ( QString layerId, QgsMapLayerRegistry::instance()->mapLayers().keys() )
{
//QgsMapLayer *layer = canvas->layer( i );
QgsMapLayer *layer = QgsMapLayerRegistry::instance()->mapLayers().value( layerId );
QgsDebugMsg( "layer->type() = " + QString::number( layer->type() ) );
if ( mType == Vector && layer->type() == QgsMapLayer::VectorLayer )
{
QgsVectorLayer *vector = ( QgsVectorLayer* )layer;
QgsDebugMsg( "vector->providerType() = " + vector->providerType() );
if ( vector->providerType() != "grass" )
continue;
//TODO dynamic_cast ?
QgsGrassProvider *provider = ( QgsGrassProvider * ) vector->dataProvider();
// Check type mask
int geomType = provider->geometryType();
if (( geomType == QGis::WKBPoint && !( mGeometryTypeMask & GV_POINT ) ) ||
( geomType == QGis::WKBLineString && !( mGeometryTypeMask & GV_LINE ) ) ||
( geomType == QGis::WKBPolygon && !( mGeometryTypeMask & GV_AREA ) )
)
{
continue;
}
// TODO add map() mapset() location() gisbase() to grass provider
QString source = QDir::cleanPath( provider->dataSourceUri() );
QgsDebugMsg( "source = " + source );
// Check GISDBASE and LOCATION
QStringList split = source.split( sep, QString::SkipEmptyParts );
if ( split.size() < 4 )
continue;
split.pop_back(); // layer
QString map = split.last();
split.pop_back(); // map
QString mapset = split.last();
split.pop_back(); // mapset
//QDir locDir ( sep + split.join ( QString(sep) ) );
//QString loc = locDir.canonicalPath();
QString loc = source.remove( QRegExp( "/[^/]+/[^/]+/[^/]+$" ) );
loc = QDir( loc ).canonicalPath();
QDir curlocDir( QgsGrass::getDefaultGisdbase() + sep + QgsGrass::getDefaultLocation() );
QString curloc = curlocDir.canonicalPath();
QgsDebugMsg( "loc = " + loc );
QgsDebugMsg( "curloc = " + curloc );
QgsDebugMsg( "mapset = " + mapset );
QgsDebugMsg( "QgsGrass::getDefaultMapset() = " + QgsGrass::getDefaultMapset() );
if ( loc != curloc )
continue;
if ( mUpdate && mapset != QgsGrass::getDefaultMapset() )
continue;
// Check if it comes from source map if necessary
if ( !mMapId.isEmpty() )
{
QString cm = map + "@" + mapset;
if ( sourceMap != cm )
continue;
}
mMaps.push_back( map + "@" + mapset );
QString type;
if ( geomType == QGis::WKBPoint )
{
type = "point";
}
else if ( geomType == QGis::WKBLineString )
{
type = "line";
}
else if ( geomType == QGis::WKBPolygon )
{
type = "area";
}
else
{
type = "unknown";
}
mGeometryTypes.push_back( type );
QString grassLayer = QString::number( provider->grassLayer() );
QString label = layer->name() + " ( " + map + "@" + mapset
+ " " + grassLayer + " " + type + " )";
mLayerComboBox->addItem( label );
if ( label == current )
mLayerComboBox->setCurrentIndex( mLayerComboBox->count() - 1 );
mMapLayers.push_back( vector );
mVectorLayerNames.push_back( grassLayer );
// convert from QgsFields to std::vector<QgsField>
mVectorFields.push_back( vector->dataProvider()->fields() );
}
else if ( mType == Raster && layer->type() == QgsMapLayer::RasterLayer )
{
if ( mDirect )
{
// Add item for each numeric band
QgsRasterLayer* rasterLayer = qobject_cast<QgsRasterLayer *>( layer );
if ( rasterLayer && rasterLayer->dataProvider() )
{
QString providerKey = rasterLayer->dataProvider()->name();
// TODO: GRASS itself is not supported for now because module is run
// with fake GRASS gis lib and the provider needs true gis lib
if ( providerKey == "grassraster" ) continue;
// Cannot use WCS until the problem with missing QThread is solved
if ( providerKey == "wcs" ) continue;
for ( int i = 1; i <= rasterLayer->dataProvider()->bandCount(); i++ )
{
if ( QgsRasterBlock::typeIsNumeric( rasterLayer->dataProvider()->dataType( i ) ) )
{
QString uri = rasterLayer->dataProvider()->dataSourceUri();
mMaps.push_back( uri );
QString label = tr( "%1 (band %2)" ).arg( rasterLayer->name() ).arg( i );
mLayerComboBox->addItem( label );
mMapLayers.push_back( layer );
mBands.append( i );
if ( label == current )
mLayerComboBox->setCurrentIndex( mLayerComboBox->count() - 1 );
}
}
}
}
else
{
// Check if it is GRASS raster
QString source = QDir::cleanPath( layer->source() );
if ( source.contains( "cellhd" ) == 0 )
continue;
// Most probably GRASS layer, check GISDBASE and LOCATION
QStringList split = source.split( sep, QString::SkipEmptyParts );
if ( split.size() < 4 )
continue;
QString map = split.last();
split.pop_back(); // map
if ( split.last() != "cellhd" )
continue;
split.pop_back(); // cellhd
QString mapset = split.last();
split.pop_back(); // mapset
//QDir locDir ( sep + split.join ( QString(sep) ) );
//QString loc = locDir.canonicalPath();
QString loc = source.remove( QRegExp( "/[^/]+/[^/]+/[^/]+$" ) );
loc = QDir( loc ).canonicalPath();
QDir curlocDir( QgsGrass::getDefaultGisdbase() + sep + QgsGrass::getDefaultLocation() );
QString curloc = curlocDir.canonicalPath();
if ( loc != curloc )
continue;
if ( mUpdate && mapset != QgsGrass::getDefaultMapset() )
continue;
mMaps.push_back( map + "@" + mapset );
mMapLayers.push_back( layer );
QString label = layer->name() + " ( " + map + "@" + mapset + " )";
mLayerComboBox->addItem( label );
if ( label == current )
mLayerComboBox->setCurrentIndex( mLayerComboBox->count() - 1 );
}
}
}
}
QStringList QgsGrassModuleInput::options()
{
QStringList list;
QString opt;
int current = mLayerComboBox->currentIndex();
if ( current < 0 ) // not found
return list;
if ( mDirect )
{
QgsMapLayer *layer = mMapLayers[current];
if ( layer->type() == QgsMapLayer::RasterLayer )
{
QgsRasterLayer* rasterLayer = qobject_cast<QgsRasterLayer *>( layer );
if ( !rasterLayer || !rasterLayer->dataProvider() )
{
QMessageBox::warning( 0, tr( "Warning" ), tr( "Cannot get provider" ) );
return list;
}
QString grassUri;
QString providerUri = rasterLayer->dataProvider()->dataSourceUri();
QString providerKey = rasterLayer->dataProvider()->name();
int band = mBands.value( current );
if ( providerKey == "gdal" && band == 1 )
{
// GDAL provider and band 1 are defaults, thus we can use simply GDAL path
grassUri = providerUri;
}
else
{
// Need to encode more info into uri
QgsDataSourceURI uri;
if ( providerKey == "gdal" )
{
// providerUri is simple file path
// encoded uri is not currently supported by GDAL provider, it is only used here and decoded in fake gis lib
uri.setParam( "path", providerUri );
}
else // WCS
{
// providerUri is encoded QgsDataSourceURI
uri.setEncodedUri( providerUri );
}
uri.setParam( "provider", providerKey );
uri.setParam( "band", QString::number( band ) );
grassUri = uri.encodedUri();