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qgsvectorlayerproperties.cpp
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qgsvectorlayerproperties.cpp
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/***************************************************************************
qgsdlgvectorlayerproperties.cpp
Unified property dialog for vector layers
-------------------
begin : 2004-01-28
copyright : (C) 2004 by Gary E.Sherman
email : sherman at mrcc.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. *
* *
***************************************************************************/
/* $Id$ */
#include <memory>
#include "qgisapp.h"
#include "qgsapplication.h"
#include "qgsattributeactiondialog.h"
#include "qgsapplydialog.h"
#include "qgscontexthelp.h"
#include "qgscontinuouscolordialog.h"
#include "qgscoordinatetransform.h"
#include "qgsgraduatedsymboldialog.h"
#include "qgslabeldialog.h"
#include "qgslabel.h"
#include "qgsgenericprojectionselector.h"
#include "qgslogger.h"
#include "qgspluginmetadata.h"
#include "qgspluginregistry.h"
#include "qgsproject.h"
#include "qgssinglesymboldialog.h"
#include "qgsuniquevaluedialog.h"
#include "qgsvectorlayer.h"
#include "qgsvectorlayerproperties.h"
#include "qgsconfig.h"
#include "qgsvectordataprovider.h"
#include "qgsvectoroverlayplugin.h"
#ifdef HAVE_POSTGRESQL
#include "qgspgquerybuilder.h"
#include "../providers/postgres/qgspostgresprovider.h"
#endif
#include <QMessageBox>
#include <QDir>
#include <QFile>
#include <QFileDialog>
#include <QFileInfo>
#include <QSettings>
#include <QComboBox>
#include <QCheckBox>
#if QT_VERSION < 0x040300
#define toPlainText() text()
#endif
QgsVectorLayerProperties::QgsVectorLayerProperties(
QgsVectorLayer *lyr,
QWidget * parent,
Qt::WFlags fl )
: QDialog( parent, fl ),
layer( lyr ),
mRendererDialog( 0 )
{
setupUi( this );
connect( buttonBox, SIGNAL( accepted() ), this, SLOT( accept() ) );
connect( buttonBox, SIGNAL( rejected() ), this, SLOT( reject() ) );
connect( buttonBox->button( QDialogButtonBox::Apply ), SIGNAL( clicked() ), this, SLOT( apply() ) );
connect( this, SIGNAL( accepted() ), this, SLOT( apply() ) );
connect( mAddAttributeButton, SIGNAL( clicked() ), this, SLOT( addAttribute() ) );
connect( mDeleteAttributeButton, SIGNAL( clicked() ), this, SLOT( deleteAttribute() ) );
connect( mToggleEditingButton, SIGNAL( clicked() ), this, SLOT( toggleEditing() ) );
connect( this, SIGNAL( toggleEditing( QgsMapLayer* ) ),
QgisApp::instance(), SLOT( toggleEditing( QgsMapLayer* ) ) );
connect( layer, SIGNAL( editingStarted() ), this, SLOT( editingToggled() ) );
connect( layer, SIGNAL( editingStopped() ), this, SLOT( editingToggled() ) );
connect( layer, SIGNAL( attributeAdded( int ) ), this, SLOT( attributeAdded( int ) ) );
connect( layer, SIGNAL( attributeDeleted( int ) ), this, SLOT( attributeDeleted( int ) ) );
mAddAttributeButton->setIcon( QgisApp::getThemeIcon( "/mActionNewAttribute.png" ) );
mDeleteAttributeButton->setIcon( QgisApp::getThemeIcon( "/mActionDeleteAttribute.png" ) );
mToggleEditingButton->setIcon( QgisApp::getThemeIcon( "/mActionToggleEditing.png" ) );
// Create the Label dialog tab
QVBoxLayout *layout = new QVBoxLayout( labelOptionsFrame );
layout->setMargin( 0 );
labelDialog = new QgsLabelDialog( layer->label(), labelOptionsFrame );
layout->addWidget( labelDialog );
labelOptionsFrame->setLayout( layout );
connect( labelDialog, SIGNAL( labelSourceSet() ), this, SLOT( setLabelCheckBox() ) );
// Create the Actions dialog tab
QVBoxLayout *actionLayout = new QVBoxLayout( actionOptionsFrame );
actionLayout->setMargin( 0 );
const QgsFieldMap &fields = layer->pendingFields();
actionDialog = new QgsAttributeActionDialog( layer->actions(), fields, actionOptionsFrame );
actionLayout->addWidget( actionDialog );
reset();
if ( layer->dataProvider() )//enable spatial index button group if supported by provider
{
int capabilities = layer->dataProvider()->capabilities();
if ( !( capabilities&QgsVectorDataProvider::CreateSpatialIndex ) )
{
pbnIndex->setEnabled( false );
}
}
updateButtons();
leSpatialRefSys->setText( layer->srs().toProj4() );
leSpatialRefSys->setCursorPosition( 0 );
connect( sliderTransparency, SIGNAL( valueChanged( int ) ), this, SLOT( sliderTransparency_valueChanged( int ) ) );
//for each overlay plugin create a new tab
int position;
QList<QgsVectorOverlayPlugin*> overlayPluginList = overlayPlugins();
QList<QgsVectorOverlayPlugin*>::const_iterator it = overlayPluginList.constBegin();
for ( ; it != overlayPluginList.constEnd(); ++it )
{
QgsApplyDialog* d = ( *it )->dialog( lyr );
position = tabWidget->addTab( d, ( *it )->name() );
tabWidget->setCurrentIndex( position ); //ugly, but otherwise the properties dialog is a mess
mOverlayDialogs.push_back( d );
}
tabWidget->setCurrentIndex( 0 );
} // QgsVectorLayerProperties ctor
void QgsVectorLayerProperties::loadRows()
{
const QgsFieldMap &fields = layer->pendingFields();
tblAttributes->clear();
tblAttributes->setColumnCount( 9 );
tblAttributes->setRowCount( fields.size() );
tblAttributes->setHorizontalHeaderItem( 0, new QTableWidgetItem( tr( "id" ) ) );
tblAttributes->setHorizontalHeaderItem( 1, new QTableWidgetItem( tr( "name" ) ) );
tblAttributes->setHorizontalHeaderItem( 2, new QTableWidgetItem( tr( "type" ) ) );
tblAttributes->setHorizontalHeaderItem( 3, new QTableWidgetItem( tr( "length" ) ) );
tblAttributes->setHorizontalHeaderItem( 4, new QTableWidgetItem( tr( "precision" ) ) );
tblAttributes->setHorizontalHeaderItem( 5, new QTableWidgetItem( tr( "comment" ) ) );
tblAttributes->setHorizontalHeaderItem( 6, new QTableWidgetItem( tr( "edit widget" ) ) );
tblAttributes->setHorizontalHeaderItem( 7, new QTableWidgetItem( tr( "values" ) ) );
tblAttributes->setHorizontalHeaderItem( 8, new QTableWidgetItem( tr( "alias" ) ) );
tblAttributes->setSelectionBehavior( QAbstractItemView::SelectRows );
tblAttributes->setSelectionMode( QAbstractItemView::MultiSelection );
int row = 0;
for ( QgsFieldMap::const_iterator it = fields.begin(); it != fields.end(); it++, row++ )
setRow( row, it.key(), it.value() );
tblAttributes->resizeColumnsToContents();
}
void QgsVectorLayerProperties::setRow( int row, int idx, const QgsField &field )
{
tblAttributes->setItem( row, 0, new QTableWidgetItem( QString::number( idx ) ) );
tblAttributes->setItem( row, 1, new QTableWidgetItem( field.name() ) );
tblAttributes->setItem( row, 2, new QTableWidgetItem( field.typeName() ) );
tblAttributes->setItem( row, 3, new QTableWidgetItem( QString::number( field.length() ) ) );
tblAttributes->setItem( row, 4, new QTableWidgetItem( QString::number( field.precision() ) ) );
tblAttributes->setItem( row, 5, new QTableWidgetItem( field.comment() ) );
for ( int i = 0; i < 6; i++ )
tblAttributes->item( row, i )->setFlags( tblAttributes->item( row, i )->flags() & ~Qt::ItemIsEditable );
QComboBox *cb = new QComboBox();
cb->addItem( tr( "line edit" ), QgsVectorLayer::LineEdit );
cb->addItem( tr( "unique values" ), QgsVectorLayer::UniqueValues );
cb->addItem( tr( "unique values (editable)" ), QgsVectorLayer::UniqueValuesEditable );
cb->addItem( tr( "value map" ), QgsVectorLayer::ValueMap );
cb->addItem( tr( "classification" ), QgsVectorLayer::Classification );
cb->addItem( tr( "range (editable)" ), QgsVectorLayer::EditRange );
cb->addItem( tr( "range (slider)" ), QgsVectorLayer::SliderRange );
cb->addItem( tr( "file name" ), QgsVectorLayer::FileName );
cb->addItem( tr( "enumeration" ), QgsVectorLayer::Enumeration );
cb->addItem( tr( "immutable" ), QgsVectorLayer::Immutable );
cb->setSizeAdjustPolicy( QComboBox::AdjustToContentsOnFirstShow );
cb->setCurrentIndex( layer->editType( idx ) );
tblAttributes->setCellWidget( row, 6, cb );
if ( layer->editType( idx ) == QgsVectorLayer::ValueMap )
{
// TODO: create a gui for value maps
QStringList mapList;
QMap<QString, QVariant> &map = layer->valueMap( idx );
for ( QMap<QString, QVariant>::iterator mit = map.begin(); mit != map.end(); mit++ )
{
QgsDebugMsg( QString( "idx:%1 key:%2 value:%3" ).arg( idx ).arg( mit.key() ).arg( mit.value().toString() ) );
if ( mit.value().isNull() )
mapList << mit.key();
else
mapList << QString( "%1=%2" ).arg( mit.key() ).arg( mit.value().toString() );
}
tblAttributes->setItem( row, 7, new QTableWidgetItem( mapList.join( ";" ) ) );
}
else if ( layer->editType( idx ) == QgsVectorLayer::EditRange ||
layer->editType( idx ) == QgsVectorLayer::SliderRange )
{
tblAttributes->setItem(
row, 7,
new QTableWidgetItem( QString( "%1;%2;%3" )
.arg( layer->range( idx ).mMin.toString() )
.arg( layer->range( idx ).mMax.toString() )
.arg( layer->range( idx ).mStep.toString() )
)
);
}
//set the alias for the attribute
tblAttributes->setItem( row, 8, new QTableWidgetItem( layer->attributeAlias( idx ) ) );
}
QgsVectorLayerProperties::~QgsVectorLayerProperties()
{
disconnect( labelDialog, SIGNAL( labelSourceSet() ), this, SLOT( setLabelCheckBox() ) );
}
void QgsVectorLayerProperties::toggleEditing()
{
emit toggleEditing( layer );
}
void QgsVectorLayerProperties::attributeAdded( int idx )
{
const QgsFieldMap &fields = layer->pendingFields();
int row = tblAttributes->rowCount();
tblAttributes->insertRow( row );
setRow( row, idx, fields[idx] );
tblAttributes->setCurrentCell( row, idx );
}
void QgsVectorLayerProperties::attributeDeleted( int idx )
{
for ( int i = 0; i < tblAttributes->rowCount(); i++ )
{
if ( tblAttributes->item( i, 0 )->text().toInt() == idx )
{
tblAttributes->removeRow( i );
break;
}
}
}
void QgsVectorLayerProperties::addAttribute()
{
QgsAddAttrDialog dialog( layer->dataProvider(), this );
if ( dialog.exec() == QDialog::Accepted )
{
if ( !addAttribute( dialog.field() ) )
{
QMessageBox::information( this, tr( "Name conflict" ), tr( "The attribute could not be inserted. The name already exists in the table." ) );
}
}
}
bool QgsVectorLayerProperties::addAttribute( const QgsField &field )
{
QgsDebugMsg( "inserting attribute " + field.name() + " of type " + field.typeName() );
layer->beginEditCommand( tr( "Added attribute" ) );
if ( layer->addAttribute( field ) )
{
layer->endEditCommand();
return true;
}
else
{
layer->destroyEditCommand();
return false;
}
}
void QgsVectorLayerProperties::deleteAttribute()
{
QList<QTableWidgetItem*> items = tblAttributes->selectedItems();
QList<int> idxs;
for ( QList<QTableWidgetItem*>::const_iterator it = items.begin(); it != items.end(); it++ )
{
if (( *it )->column() == 0 )
idxs << ( *it )->text().toInt();
}
for ( QList<int>::const_iterator it = idxs.begin(); it != idxs.end(); it++ )
{
layer->beginEditCommand( tr( "Deleted attribute" ) );
layer->deleteAttribute( *it );
layer->endEditCommand();
}
}
void QgsVectorLayerProperties::editingToggled()
{
if ( layer->isEditable() )
loadRows();
updateButtons();
}
void QgsVectorLayerProperties::updateButtons()
{
if ( layer->isEditable() )
{
int cap = layer->dataProvider()->capabilities();
mAddAttributeButton->setEnabled( cap & QgsVectorDataProvider::AddAttributes );
mDeleteAttributeButton->setEnabled( cap & QgsVectorDataProvider::DeleteAttributes );
mToggleEditingButton->setChecked( true );
}
else
{
mAddAttributeButton->setEnabled( false );
mDeleteAttributeButton->setEnabled( false );
mToggleEditingButton->setChecked( false );
}
}
void QgsVectorLayerProperties::sliderTransparency_valueChanged( int theValue )
{
//set the transparency percentage label to a suitable value
int myInt = static_cast < int >(( theValue / 255.0 ) * 100 ); //255.0 to prevent integer division
lblTransparencyPercent->setText( tr( "Transparency: %1%" ).arg( myInt ) );
}//sliderTransparency_valueChanged
void QgsVectorLayerProperties::setLabelCheckBox()
{
labelCheckBox->setCheckState( Qt::Checked );
}
void QgsVectorLayerProperties::alterLayerDialog( const QString & dialogString )
{
widgetStackRenderers->removeWidget( mRendererDialog );
delete mRendererDialog;
mRendererDialog = 0;
if ( dialogString == tr( "Single Symbol" ) )
{
mRendererDialog = new QgsSingleSymbolDialog( layer );
}
else if ( dialogString == tr( "Graduated Symbol" ) )
{
mRendererDialog = new QgsGraduatedSymbolDialog( layer );
}
else if ( dialogString == tr( "Continuous Color" ) )
{
mRendererDialog = new QgsContinuousColorDialog( layer );
}
else if ( dialogString == tr( "Unique Value" ) )
{
mRendererDialog = new QgsUniqueValueDialog( layer );
}
widgetStackRenderers->addWidget( mRendererDialog );
widgetStackRenderers->setCurrentWidget( mRendererDialog );
}
void QgsVectorLayerProperties::setLegendType( QString type )
{
legendtypecombobox->setItemText( legendtypecombobox->currentIndex(), type );
}
void QgsVectorLayerProperties::setDisplayField( QString name )
{
displayFieldComboBox->setItemText( displayFieldComboBox->currentIndex(), name );
}
//! @note in raster props, this method is called sync()
void QgsVectorLayerProperties::reset( void )
{
QObject::disconnect( tblAttributes, SIGNAL( cellChanged( int, int ) ), this, SLOT( on_tblAttributes_cellChanged( int, int ) ) );
// populate the general information
txtDisplayName->setText( layer->name() );
pbnQueryBuilder->setWhatsThis( tr( "This button opens the PostgreSQL query "
"builder and allows you to create a subset of features to display on "
"the map canvas rather than displaying all features in the layer" ) );
txtSubsetSQL->setWhatsThis( tr( "The query used to limit the features in the "
"layer is shown here. This is currently only supported for PostgreSQL "
"layers. To enter or modify the query, click on the Query Builder button" ) );
//see if we are dealing with a pg layer here
if ( layer->providerType() == "postgres" )
{
grpSubset->setEnabled( true );
txtSubsetSQL->setText( layer->subsetString() );
// if the user is allowed to type an adhoc query, the app will crash if the query
// is bad. For this reason, the sql box is disabled and the query must be built
// using the query builder, either by typing it in by hand or using the buttons, etc
// on the builder. If the ability to enter a query directly into the box is required,
// a mechanism to check it must be implemented.
txtSubsetSQL->setEnabled( false );
pbnQueryBuilder->setEnabled( true );
}
else
{
grpSubset->setEnabled( false );
}
//get field list for display field combo
const QgsFieldMap& myFields = layer->pendingFields();
for ( QgsFieldMap::const_iterator it = myFields.begin(); it != myFields.end(); ++it )
{
displayFieldComboBox->addItem( it->name() );
}
displayFieldComboBox->setCurrentIndex( displayFieldComboBox->findText(
layer->displayField() ) );
// set up the scale based layer visibility stuff....
chkUseScaleDependentRendering->setChecked( layer->hasScaleBasedVisibility() );
spinMinimumScale->setValue(( int )layer->minimumScale() );
spinMaximumScale->setValue(( int )layer->maximumScale() );
// symbology initialization
if ( legendtypecombobox->count() == 0 )
{
legendtypecombobox->addItem( tr( "Single Symbol" ) );
if ( myFields.size() > 0 )
{
legendtypecombobox->addItem( tr( "Graduated Symbol" ) );
legendtypecombobox->addItem( tr( "Continuous Color" ) );
legendtypecombobox->addItem( tr( "Unique Value" ) );
}
}
//find out the type of renderer in the vectorlayer, create a dialog with these settings and add it to the form
delete mRendererDialog;
mRendererDialog = 0;
QString rtype = layer->renderer()->name();
if ( rtype == "Single Symbol" )
{
mRendererDialog = new QgsSingleSymbolDialog( layer );
legendtypecombobox->setCurrentIndex( 0 );
}
else if ( rtype == "Graduated Symbol" )
{
mRendererDialog = new QgsGraduatedSymbolDialog( layer );
legendtypecombobox->setCurrentIndex( 1 );
}
else if ( rtype == "Continuous Color" )
{
mRendererDialog = new QgsContinuousColorDialog( layer );
legendtypecombobox->setCurrentIndex( 2 );
}
else if ( rtype == "Unique Value" )
{
mRendererDialog = new QgsUniqueValueDialog( layer );
legendtypecombobox->setCurrentIndex( 3 );
}
if ( mRendererDialog )
{
widgetStackRenderers->addWidget( mRendererDialog );
widgetStackRenderers->setCurrentWidget( mRendererDialog );
}
QObject::connect( legendtypecombobox, SIGNAL( activated( const QString & ) ), this,
SLOT( alterLayerDialog( const QString & ) ) );
// reset fields in label dialog
layer->label()->setFields( layer->pendingFields() );
//set the metadata contents
QString myStyle = QgsApplication::reportStyleSheet();
teMetadata->clear();
teMetadata->document()->setDefaultStyleSheet( myStyle );
teMetadata->setHtml( metadata() );
actionDialog->init();
labelDialog->init();
labelCheckBox->setChecked( layer->hasLabelsEnabled() );
labelOptionsFrame->setEnabled( layer->hasLabelsEnabled() );
//set the transparency slider
sliderTransparency->setValue( 255 - layer->getTransparency() );
//update the transparency percentage label
sliderTransparency_valueChanged( 255 - layer->getTransparency() );
loadRows();
QObject::connect( tblAttributes, SIGNAL( cellChanged( int, int ) ), this, SLOT( on_tblAttributes_cellChanged( int, int ) ) );
} // reset()
//
// methods reimplemented from qt designer base class
//
void QgsVectorLayerProperties::on_buttonBox_helpRequested()
{
QgsContextHelp::run( context_id );
}
void QgsVectorLayerProperties::apply()
{
//
// Set up sql subset query if applicable
//
#ifdef HAVE_POSTGRESQL
//see if we are dealing with a pg layer here
if ( layer->providerType() == "postgres" )
{
grpSubset->setEnabled( true );
// set the subset sql for the layer
layer->setSubsetString( txtSubsetSQL->toPlainText() );
// update the metadata with the updated sql subset
QString myStyle = QgsApplication::reportStyleSheet();
teMetadata->clear();
teMetadata->document()->setDefaultStyleSheet( myStyle );
teMetadata->setHtml( metadata() );
// update the extents of the layer (fetched from the provider)
layer->updateExtents();
}
#endif
// set up the scale based layer visibility stuff....
layer->toggleScaleBasedVisibility( chkUseScaleDependentRendering->isChecked() );
layer->setMinimumScale( spinMinimumScale->value() );
layer->setMaximumScale( spinMaximumScale->value() );
// update the display field
layer->setDisplayField( displayFieldComboBox->currentText() );
actionDialog->apply();
labelDialog->apply();
layer->enableLabels( labelCheckBox->isChecked() );
layer->setLayerName( displayName() );
for ( int i = 0; i < tblAttributes->rowCount(); i++ )
{
int idx = tblAttributes->item( i, 0 )->text().toInt();
const QgsField &field = layer->pendingFields()[idx];
QComboBox *cb = dynamic_cast<QComboBox*>( tblAttributes->cellWidget( i, 6 ) );
if ( !cb )
continue;
QgsVectorLayer::EditType editType = ( QgsVectorLayer::EditType ) cb->itemData( cb->currentIndex() ).toInt();
layer->setEditType( idx, editType );
QString value = tblAttributes->item( i, 7 ) ? tblAttributes->item( i, 7 )->text() : QString::null;
if ( editType == QgsVectorLayer::ValueMap )
{
QMap<QString, QVariant> &map = layer->valueMap( idx );
map.clear();
if ( !value.isEmpty() )
{
QStringList values = value.split( ";" );
for ( int j = 0; j < values.size(); j++ )
{
QStringList args = values[j].split( "=" );
QVariant value;
if ( args.size() == 1 || ( args.size() == 2 && args[0] == args[1] ) )
{
QgsDebugMsg( QString( "idx:%1 key:%2 value:%2" ).arg( idx ).arg( args[0] ) );
value = args[0];
}
else if ( args.size() == 2 )
{
QgsDebugMsg( QString( "idx:%1 key:%2 value:%3" ).arg( idx ).arg( args[0] ).arg( args[1] ) );
value = args[1];
}
if ( value.canConvert( field.type() ) )
{
map.insert( args[0], value );
}
}
}
}
else if ( editType == QgsVectorLayer::EditRange ||
editType == QgsVectorLayer::SliderRange )
{
QStringList values = value.split( ";" );
if ( values.size() == 3 )
{
QVariant min = values[0];
QVariant max = values[1];
QVariant step = values[2];
if ( min.canConvert( field.type() ) &&
max.canConvert( field.type() ) &&
step.canConvert( field.type() ) )
{
min.convert( field.type() );
max.convert( field.type() );
step.convert( field.type() );
layer->range( idx ) = QgsVectorLayer::RangeData( min, max, step );
}
}
}
}
QgsSingleSymbolDialog *sdialog =
dynamic_cast < QgsSingleSymbolDialog * >( widgetStackRenderers->currentWidget() );
QgsGraduatedSymbolDialog *gdialog =
dynamic_cast < QgsGraduatedSymbolDialog * >( widgetStackRenderers->currentWidget() );
QgsContinuousColorDialog *cdialog =
dynamic_cast < QgsContinuousColorDialog * >( widgetStackRenderers->currentWidget() );
QgsUniqueValueDialog* udialog =
dynamic_cast< QgsUniqueValueDialog * >( widgetStackRenderers->currentWidget() );
if ( sdialog )
{
sdialog->apply();
}
else if ( gdialog )
{
gdialog->apply();
}
else if ( cdialog )
{
cdialog->apply();
}
else if ( udialog )
{
udialog->apply();
}
layer->setTransparency( static_cast < unsigned int >( 255 - sliderTransparency->value() ) );
//apply overlay dialogs
for ( QList<QgsApplyDialog*>::iterator it = mOverlayDialogs.begin(); it != mOverlayDialogs.end(); ++it )
{
( *it )->apply();
}
// update symbology
emit refreshLegend( layer->getLayerID(), false );
layer->triggerRepaint();
// notify the project we've made a change
QgsProject::instance()->dirty( true );
}
void QgsVectorLayerProperties::on_pbnQueryBuilder_clicked()
{
#ifdef HAVE_POSTGRESQL
// launch the query builder using the PostgreSQL connection
// from the provider
// cast to postgres provider type
QgsPostgresProvider * myPGProvider = ( QgsPostgresProvider * ) layer->dataProvider() ; // FIXME use dynamic cast
// create the query builder object using the table name
// and postgres connection from the provider
QgsDataSourceURI uri( myPGProvider->dataSourceUri() );
QgsPgQueryBuilder *pqb = new QgsPgQueryBuilder( &uri, this );
// Set the sql in the query builder to the same in the prop dialog
// (in case the user has already changed it)
pqb->setSql( txtSubsetSQL->toPlainText() );
// Open the query builder
if ( pqb->exec() )
{
// if the sql is changed, update it in the prop subset text box
txtSubsetSQL->setText( pqb->sql() );
//TODO If the sql is changed in the prop dialog, the layer extent should be recalculated
// The datasource for the layer needs to be updated with the new sql since this gets
// saved to the project file. This should happen at the map layer level...
}
// delete the query builder object
delete pqb;
#endif
}
void QgsVectorLayerProperties::on_pbnIndex_clicked()
{
QgsVectorDataProvider* pr = layer->dataProvider();
if ( pr )
{
setCursor( Qt::WaitCursor );
bool errval = pr->createSpatialIndex();
setCursor( Qt::ArrowCursor );
if ( errval )
{
QMessageBox::information( this, tr( "Spatial Index" ), tr( "Creation of spatial index successful" ) );
}
else
{
// TODO: Remind the user to use OGR >= 1.2.6 and Shapefile
QMessageBox::information( this, tr( "Spatial Index" ), tr( "Creation of spatial index failed" ) );
}
}
}
QString QgsVectorLayerProperties::metadata()
{
QString myMetadata = "<html><body>";
myMetadata += "<table width=\"100%\">";
//-------------
myMetadata += "<tr class=\"glossy\"><td>";
myMetadata += tr( "General:" );
myMetadata += "</td></tr>";
// data comment
if ( !( layer->dataComment().isEmpty() ) )
{
myMetadata += "<tr><td>";
myMetadata += tr( "Layer comment: %1" ).arg( layer->dataComment() );
myMetadata += "</td></tr>";
}
//storage type
myMetadata += "<tr><td>";
myMetadata += tr( "Storage type of this layer: %1" ).arg( layer->storageType() );
myMetadata += "</td></tr>";
// data source
myMetadata += "<tr><td>";
myMetadata += tr( "Source for this layer: %1" ).arg( layer->publicSource() );
myMetadata += "</td></tr>";
//geom type
QGis::GeometryType type = layer->geometryType();
if ( type < 0 || type > QGis::Polygon )
{
QgsDebugMsg( "Invalid vector type" );
}
else
{
QString typeString( QGis::qgisVectorGeometryType[layer->geometryType()] );
myMetadata += "<tr><td>";
myMetadata += tr( "Geometry type of the features in this layer: %1" ).arg( typeString );
myMetadata += "</td></tr>";
}
//feature count
myMetadata += "<tr><td>";
myMetadata += tr( "The number of features in this layer: %1" ).arg( layer->featureCount() );
myMetadata += "</td></tr>";
//capabilities
myMetadata += "<tr><td>";
myMetadata += tr( "Editing capabilities of this layer: %1" ).arg( layer->capabilitiesString() );
myMetadata += "</td></tr>";
//-------------
QgsRectangle myExtent = layer->extent();
myMetadata += "<tr class=\"glossy\"><td>";
myMetadata += tr( "Extents:" );
myMetadata += "</td></tr>";
//extents in layer cs TODO...maybe make a little nested table to improve layout...
myMetadata += "<tr><td>";
myMetadata += tr( "In layer spatial reference system units : " )
+ tr( "xMin,yMin %1,%2 : xMax,yMax %3,%4" )
.arg( myExtent.xMinimum() ).arg( myExtent.yMinimum() )
.arg( myExtent.xMaximum() ).arg( myExtent.yMaximum() );
myMetadata += "</td></tr>";
//extents in project cs
try
{
#if 0
// TODO: currently disabled, will revisit later [MD]
QgsRectangle myProjectedExtent = coordinateTransform->transformBoundingBox( layer->extent() );
myMetadata += "<tr><td>";
myMetadata += tr( "In project spatial reference system units : " )
+ tr( "xMin,yMin %1,%2 : xMax,yMax %3,%4" )
.arg( myProjectedExtent.xMinimum() )
.arg( myProjectedExtent.yMinimum() )
.arg( myProjectedExtent.xMaximum() )
.arg( myProjectedExtent.yMaximum() );
myMetadata += "</td></tr>";
#endif
//
// Display layer spatial ref system
//
myMetadata += "<tr class=\"glossy\"><td>";
myMetadata += tr( "Layer Spatial Reference System:" );
myMetadata += "</td></tr>";
myMetadata += "<tr><td>";
myMetadata += layer->srs().toProj4().replace( QRegExp( "\"" ), " \"" );
myMetadata += "</td></tr>";
//
// Display project (output) spatial ref system
//
#if 0
// TODO: disabled for now, will revisit later [MD]
myMetadata += "<tr><td bgcolor=\"gray\">";
myMetadata += tr( "Project (Output) Spatial Reference System:" );
myMetadata += "</td></tr>";
myMetadata += "<tr><td>";
myMetadata += coordinateTransform->destCRS().toProj4().replace( QRegExp( "\"" ), " \"" );
myMetadata += "</td></tr>";
#endif
}
catch ( QgsCsException &cse )
{
Q_UNUSED( cse );
QgsDebugMsg( cse.what() );
myMetadata += "<tr><td>";
myMetadata += tr( "In project spatial reference system units : " )
+ tr( "(Invalid transformation of layer extents)" );
myMetadata += "</td></tr>";
}
#if 0
//
// Add the info about each field in the attribute table
//
myMetadata += "<tr class=\"glossy\"><td>";
myMetadata += tr( "Attribute field info:" );
myMetadata += "</td></tr>";
myMetadata += "<tr><td>";
// Start a nested table in this trow
myMetadata += "<table width=\"100%\">";
myMetadata += "<tr><th>";
myMetadata += tr( "Field" );
myMetadata += "</th>";
myMetadata += "<th>";
myMetadata += tr( "Type" );
myMetadata += "</th>";
myMetadata += "<th>";
myMetadata += tr( "Length" );
myMetadata += "</th>";
myMetadata += "<th>";
myMetadata += tr( "Precision" );
myMetadata += "</th>";
myMetadata += "<th>";
myMetadata += tr( "Comment" );
myMetadata += "</th>";
//get info for each field by looping through them
const QgsFieldMap& myFields = layer->pendingFields();
for ( QgsFieldMap::const_iterator it = myFields.begin(); it != myFields.end(); ++it )
{
const QgsField& myField = *it;
myMetadata += "<tr><td>";
myMetadata += myField.name();
myMetadata += "</td>";
myMetadata += "<td>";
myMetadata += myField.typeName();
myMetadata += "</td>";
myMetadata += "<td>";
myMetadata += QString( "%1" ).arg( myField.length() );
myMetadata += "</td>";
myMetadata += "<td>";
myMetadata += QString( "%1" ).arg( myField.precision() );
myMetadata += "</td>";
myMetadata += "<td>";
myMetadata += QString( "%1" ).arg( myField.comment() );
myMetadata += "</td></tr>";
}
//close field list
myMetadata += "</table>"; //end of nested table
#endif
myMetadata += "</td></tr>"; //end of stats container table row
//
// Close the table
//
myMetadata += "</table>";
myMetadata += "</body></html>";
return myMetadata;
}
void QgsVectorLayerProperties::on_pbnChangeSpatialRefSys_clicked()
{
QgsGenericProjectionSelector * mySelector = new QgsGenericProjectionSelector( this );
mySelector->setMessage();
mySelector->setSelectedCrsId( layer->srs().srsid() );
if ( mySelector->exec() )
{
QgsCoordinateReferenceSystem srs( mySelector->selectedCrsId(), QgsCoordinateReferenceSystem::InternalCrsId );
layer->setCrs( srs );
}
else
{
QApplication::restoreOverrideCursor();
}
delete mySelector;
leSpatialRefSys->setText( layer->srs().toProj4() );
leSpatialRefSys->setCursorPosition( 0 );
}
void QgsVectorLayerProperties::on_pbnLoadDefaultStyle_clicked()
{
bool defaultLoadedFlag = false;
QString myMessage = layer->loadDefaultStyle( defaultLoadedFlag );
//reset if the default style was loaded ok only
if ( defaultLoadedFlag )
{
// all worked ok so no need to inform user
reset();
}
else
{
//something went wrong - let them know why
QMessageBox::information( this, tr( "Default Style" ), myMessage );
}
}
void QgsVectorLayerProperties::on_pbnSaveDefaultStyle_clicked()
{
apply(); // make sure the qml to save is uptodate
// a flag passed by reference
bool defaultSavedFlag = false;
// after calling this the above flag will be set true for success
// or false if the save operation failed
QString myMessage = layer->saveDefaultStyle( defaultSavedFlag );
if ( !defaultSavedFlag )
{
//only raise the message if something went wrong
QMessageBox::information( this, tr( "Default Style" ), myMessage );
}
}
void QgsVectorLayerProperties::on_pbnLoadStyle_clicked()
{
QSettings myQSettings; // where we keep last used filter in persistant state
QString myLastUsedDir = myQSettings.value( "style/lastStyleDir", "." ).toString();
//create a file dialog
std::auto_ptr < QFileDialog > myFileDialog
(
new QFileDialog(
this,
tr( "Load layer properties from style file (.qml)" ),
myLastUsedDir,
tr( "QGIS Layer Style File (*.qml)" )
)
);
myFileDialog->setFileMode( QFileDialog::AnyFile );
myFileDialog->setAcceptMode( QFileDialog::AcceptOpen );
//prompt the user for a file name
QString myFileName;
if ( myFileDialog->exec() == QDialog::Accepted )
{
QStringList myFiles = myFileDialog->selectedFiles();
if ( !myFiles.isEmpty() )
{
myFileName = myFiles[0];
}
}
if ( !myFileName.isEmpty() )
{
if ( myFileDialog->selectedFilter() == tr( "QGIS Layer Style File (*.qml)" ) )
{
//ensure the user never omitted the extension from the file name
if ( !myFileName.endsWith( ".qml", Qt::CaseInsensitive ) )
{
myFileName += ".qml";
}
bool defaultLoadedFlag = false;
QString myMessage = layer->loadNamedStyle( myFileName, defaultLoadedFlag );
//reset if the default style was loaded ok only
if ( defaultLoadedFlag )
{
reset();
}
else
{
//let the user know what went wrong
QMessageBox::information( this, tr( "Saved Style" ), myMessage );
}