Esempio n. 1
0
//! @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 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. To enter or modify the query, click on the Query Builder button" ) );

  //see if we are dealing with a pg layer here
  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( layer && layer->dataProvider() && layer->dataProvider()->supportsSubsetString() &&
                               !layer->isEditable() && layer->vectorJoins().size() < 1 );
  if ( layer->isEditable() )
  {
    pbnQueryBuilder->setToolTip( tr( "Stop editing mode to enable this." ) );
  }

  //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() );
    fieldComboBox->addItem( it->name() );
  }

  setDisplayField( layer-> displayField() );

  // set up the scale based layer visibility stuff....
  chkUseScaleDependentRendering->setChecked( layer->hasScaleBasedVisibility() );
  bool projectScales = QgsProject::instance()->readBoolEntry( "Scales", "/useProjectScales" );
  if ( projectScales )
  {
    QStringList scalesList = QgsProject::instance()->readListEntry( "Scales", "/ScalesList" );
    cbMinimumScale->updateScales( scalesList );
    cbMaximumScale->updateScales( scalesList );
  }
  cbMinimumScale->setScale( 1.0 / layer->minimumScale() );
  cbMaximumScale->setScale( 1.0 / 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" ) );
    }
  }

  // load appropriate symbology page (V1 or V2)
  updateSymbologyPage();

  // reset fields in label dialog
  layer->label()->setFields( layer->pendingFields() );

  actionDialog->init();

  if ( layer->hasGeometryType() )
  {
    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 ) ) );
  QObject::connect( labelCheckBox, SIGNAL( clicked( bool ) ), this, SLOT( enableLabelOptions( bool ) ) );
} // reset()
//! @note in raster props, this method is called sync()
void QgsVectorLayerProperties::reset( void )
{
  // 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();
} // reset()