void QgsLabelingWidget::adaptToLayer()
{
if ( !mLayer )
return;
mLabelModeComboBox->setCurrentIndex( -1 );
// pick the right mode of the layer
if ( mLayer->labeling() && mLayer->labeling()->type() == "rule-based" )
{
mLabelModeComboBox->setCurrentIndex( 2 );
}
else
{
// load labeling settings from layer
QgsPalLayerSettings lyr;
lyr.readFromLayer( mLayer );
// enable/disable main options based upon whether layer is being labeled
if ( !lyr.enabled )
{
mLabelModeComboBox->setCurrentIndex( 0 );
}
else
{
mLabelModeComboBox->setCurrentIndex( lyr.drawLabels ? 1 : 3 );
}
}
}
QgsLabelingGui::QgsLabelingGui( QgsPalLabeling* lbl, QgsVectorLayer* layer, QgsMapCanvas* mapCanvas, QWidget* parent )
: QWidget( parent ), mLBL( lbl ), mLayer( layer ), mMapCanvas( mapCanvas )
{
if ( !layer ) return;
setupUi( this );
mRefFont = lblFontPreview->font();
mPreviewBackgroundBtn->setColor( Qt::white );
connect( mPreviewBackgroundBtn, SIGNAL( clicked() ), this, SLOT( changePreviewBackground( ) ) );
connect( btnTextColor, SIGNAL( clicked() ), this, SLOT( changeTextColor() ) );
connect( btnChangeFont, SIGNAL( clicked() ), this, SLOT( changeTextFont() ) );
connect( chkBuffer, SIGNAL( toggled( bool ) ), this, SLOT( updatePreview() ) );
connect( btnBufferColor, SIGNAL( clicked() ), this, SLOT( changeBufferColor() ) );
connect( spinBufferSize, SIGNAL( valueChanged( double ) ), this, SLOT( updatePreview() ) );
connect( btnEngineSettings, SIGNAL( clicked() ), this, SLOT( showEngineConfigDialog() ) );
connect( btnExpression, SIGNAL( clicked() ), this, SLOT( showExpressionDialog() ) );
// set placement methods page based on geometry type
switch ( layer->geometryType() )
{
case QGis::Point:
stackedPlacement->setCurrentWidget( pagePoint );
break;
case QGis::Line:
stackedPlacement->setCurrentWidget( pageLine );
break;
case QGis::Polygon:
stackedPlacement->setCurrentWidget( pagePolygon );
break;
default:
Q_ASSERT( 0 && "NOOOO!" );
}
//mTabWidget->setEnabled( chkEnableLabeling->isChecked() );
chkMergeLines->setEnabled( layer->geometryType() == QGis::Line );
chkAddDirectionSymbol->setEnabled( layer->geometryType() == QGis::Line );
label_19->setEnabled( layer->geometryType() != QGis::Point );
mMinSizeSpinBox->setEnabled( layer->geometryType() != QGis::Point );
// load labeling settings from layer
QgsPalLayerSettings lyr;
lyr.readFromLayer( layer );
populateFieldNames();
populateDataDefinedCombos( lyr );
chkEnableLabeling->setChecked( lyr.enabled );
mTabWidget->setEnabled( lyr.enabled );
cboFieldName->setEnabled( lyr.enabled );
btnExpression->setEnabled( lyr.enabled );
//Add the current expression to the bottom of the list.
if ( lyr.isExpression && !lyr.fieldName.isEmpty() )
cboFieldName->addItem( lyr.fieldName );
// placement
int distUnitIndex = lyr.distInMapUnits ? 1 : 0;
switch ( lyr.placement )
{
case QgsPalLayerSettings::AroundPoint:
radAroundPoint->setChecked( true );
radAroundCentroid->setChecked( true );
spinDistPoint->setValue( lyr.dist );
mPointDistanceUnitComboBox->setCurrentIndex( distUnitIndex );
//spinAngle->setValue(lyr.angle);
break;
case QgsPalLayerSettings::OverPoint:
radOverPoint->setChecked( true );
radOverCentroid->setChecked( true );
break;
case QgsPalLayerSettings::Line:
radLineParallel->setChecked( true );
radPolygonPerimeter->setChecked( true );
break;
case QgsPalLayerSettings::Curved:
radLineCurved->setChecked( true );
break;
case QgsPalLayerSettings::Horizontal:
radPolygonHorizontal->setChecked( true );
radLineHorizontal->setChecked( true );
break;
case QgsPalLayerSettings::Free:
radPolygonFree->setChecked( true );
break;
default:
Q_ASSERT( 0 && "NOOO!" );
}
if ( lyr.placement == QgsPalLayerSettings::Line || lyr.placement == QgsPalLayerSettings::Curved )
{
spinDistLine->setValue( lyr.dist );
mLineDistanceUnitComboBox->setCurrentIndex( distUnitIndex );
chkLineAbove->setChecked( lyr.placementFlags & QgsPalLayerSettings::AboveLine );
chkLineBelow->setChecked( lyr.placementFlags & QgsPalLayerSettings::BelowLine );
chkLineOn->setChecked( lyr.placementFlags & QgsPalLayerSettings::OnLine );
if ( !( lyr.placementFlags & QgsPalLayerSettings::MapOrientation ) )
chkLineOrientationDependent->setChecked( true );
}
cboFieldName->setCurrentIndex( cboFieldName->findText( lyr.fieldName ) );
chkEnableLabeling->setChecked( lyr.enabled );
sliderPriority->setValue( lyr.priority );
chkNoObstacle->setChecked( !lyr.obstacle );
chkLabelPerFeaturePart->setChecked( lyr.labelPerPart );
chkMergeLines->setChecked( lyr.mergeLines );
mMinSizeSpinBox->setValue( lyr.minFeatureSize );
chkAddDirectionSymbol->setChecked( lyr.addDirectionSymbol );
wrapCharacterEdit->setText( lyr.wrapChar );
chkPreserveRotation->setChecked( lyr.preserveRotation );
bool scaleBased = ( lyr.scaleMin != 0 && lyr.scaleMax != 0 );
chkScaleBasedVisibility->setChecked( scaleBased );
if ( scaleBased )
{
spinScaleMin->setValue( lyr.scaleMin );
spinScaleMax->setValue( lyr.scaleMax );
}
bool buffer = ( lyr.bufferSize != 0 );
chkBuffer->setChecked( buffer );
if ( buffer )
spinBufferSize->setValue( lyr.bufferSize );
btnTextColor->setColor( lyr.textColor );
mFontTranspSpinBox->setValue( lyr.textTransp );
btnBufferColor->setColor( lyr.bufferColor );
mBufferTranspSpinBox->setValue( lyr.bufferTransp );
bool formattedNumbers = lyr.formatNumbers;
bool plusSign = lyr.plusSign;
chkFormattedNumbers->setChecked( formattedNumbers );
if ( formattedNumbers )
{
spinDecimals->setValue( lyr.decimals );
}
if ( plusSign )
{
chkPlusSign->setChecked( plusSign );
}
if ( lyr.fontSizeInMapUnits )
{
mFontSizeUnitComboBox->setCurrentIndex( 1 );
}
else
{
mFontSizeUnitComboBox->setCurrentIndex( 0 );
}
QFont textFont = lyr.textFont;
updateFont( textFont );
mFontSizeSpinBox->setValue( textFont.pointSizeF() );
updateUi();
updateOptions();
connect( chkBuffer, SIGNAL( toggled( bool ) ), this, SLOT( updateUi() ) );
connect( chkScaleBasedVisibility, SIGNAL( toggled( bool ) ), this, SLOT( updateUi() ) );
connect( chkFormattedNumbers, SIGNAL( toggled( bool ) ), this, SLOT( updateUi() ) );
connect( chkLineAbove, SIGNAL( toggled( bool ) ), this, SLOT( updateUi() ) );
connect( chkLineBelow, SIGNAL( toggled( bool ) ), this, SLOT( updateUi() ) );
// setup connection to changes in the placement
QRadioButton* placementRadios[] =
{
radAroundPoint, radOverPoint, // point
radLineParallel, radLineCurved, radLineHorizontal, // line
radAroundCentroid, radPolygonHorizontal, radPolygonFree, radPolygonPerimeter // polygon
};
for ( unsigned int i = 0; i < sizeof( placementRadios ) / sizeof( QRadioButton* ); i++ )
{
connect( placementRadios[i], SIGNAL( toggled( bool ) ), this, SLOT( updateOptions() ) );
}
}
int QgsPalLabeling::prepareLayer( QgsVectorLayer* layer, QSet<int>& attrIndices, QgsRenderContext& ctx )
{
Q_ASSERT( mMapRenderer != NULL );
// start with a temporary settings class, find out labeling info
QgsPalLayerSettings lyrTmp;
lyrTmp.readFromLayer( layer );
if ( !lyrTmp.enabled )
return 0;
// find out which field will be needed
int fldIndex = layer->fieldNameIndex( lyrTmp.fieldName );
if ( fldIndex == -1 )
return 0;
attrIndices.insert( fldIndex );
//add indices of data defined fields
QMap< QgsPalLayerSettings::DataDefinedProperties, int >::const_iterator dIt = lyrTmp.dataDefinedProperties.constBegin();
for ( ; dIt != lyrTmp.dataDefinedProperties.constEnd(); ++dIt )
{
attrIndices.insert( dIt.value() );
}
// add layer settings to the pallabeling hashtable: <QgsVectorLayer*, QgsPalLayerSettings>
mActiveLayers.insert( layer, lyrTmp );
// start using the reference to the layer in hashtable instead of local instance
QgsPalLayerSettings& lyr = mActiveLayers[layer];
// how to place the labels
Arrangement arrangement;
switch ( lyr.placement )
{
case QgsPalLayerSettings::AroundPoint: arrangement = P_POINT; break;
case QgsPalLayerSettings::OverPoint: arrangement = P_POINT_OVER; break;
case QgsPalLayerSettings::Line: arrangement = P_LINE; break;
case QgsPalLayerSettings::Curved: arrangement = P_CURVED; break;
case QgsPalLayerSettings::Horizontal: arrangement = P_HORIZ; break;
case QgsPalLayerSettings::Free: arrangement = P_FREE; break;
default: Q_ASSERT( "unsupported placement" && 0 ); return 0;
}
// create the pal layer
double priority = 1 - lyr.priority / 10.0; // convert 0..10 --> 1..0
double min_scale = -1, max_scale = -1;
if ( lyr.scaleMin != 0 && lyr.scaleMax != 0 )
{
min_scale = lyr.scaleMin;
max_scale = lyr.scaleMax;
}
Layer* l = mPal->addLayer( layer->id().toUtf8().data(),
min_scale, max_scale, arrangement,
METER, priority, lyr.obstacle, true, true );
if ( lyr.placementFlags )
l->setArrangementFlags( lyr.placementFlags );
// set label mode (label per feature is the default)
l->setLabelMode( lyr.labelPerPart ? Layer::LabelPerFeaturePart : Layer::LabelPerFeature );
// set whether adjacent lines should be merged
l->setMergeConnectedLines( lyr.mergeLines );
lyr.textFont.setPixelSize( lyr.sizeToPixel( lyr.textFont.pointSizeF(), ctx ) );
//raster and vector scale factors
lyr.vectorScaleFactor = ctx.scaleFactor();
lyr.rasterCompressFactor = ctx.rasterScaleFactor();
// save the pal layer to our layer context (with some additional info)
lyr.palLayer = l;
lyr.fieldIndex = fldIndex;
lyr.fontMetrics = new QFontMetricsF( lyr.textFont );
lyr.xform = mMapRenderer->coordinateTransform();
if ( mMapRenderer->hasCrsTransformEnabled() )
lyr.ct = new QgsCoordinateTransform( layer->crs(), mMapRenderer->destinationCrs() );
else
lyr.ct = NULL;
lyr.ptZero = lyr.xform->toMapCoordinates( 0, 0 );
lyr.ptOne = lyr.xform->toMapCoordinates( 1, 0 );
// rect for clipping
lyr.extentGeom = QgsGeometry::fromRect( mMapRenderer->extent() );
return 1; // init successful
}
QgsLabelingGui::QgsLabelingGui( QgsPalLabeling* lbl, QgsVectorLayer* layer, QgsMapCanvas* mapCanvas, QWidget* parent )
: QWidget( parent ), mLBL( lbl ), mLayer( layer ), mMapCanvas( mapCanvas )
{
if ( !layer ) return;
setupUi( this );
mRefFont = lblFontPreview->font();
mPreviewSize = 24;
connect( btnTextColor, SIGNAL( clicked() ), this, SLOT( changeTextColor() ) );
connect( btnChangeFont, SIGNAL( clicked() ), this, SLOT( changeTextFont() ) );
connect( mFontTranspSpinBox, SIGNAL( valueChanged( int ) ), this, SLOT( updatePreview() ) );
connect( chkBuffer, SIGNAL( toggled( bool ) ), this, SLOT( updatePreview() ) );
connect( btnBufferColor, SIGNAL( clicked() ), this, SLOT( changeBufferColor() ) );
connect( spinBufferSize, SIGNAL( valueChanged( double ) ), this, SLOT( updatePreview() ) );
connect( mBufferTranspSpinBox, SIGNAL( valueChanged( int ) ), this, SLOT( updatePreview() ) );
connect( mBufferJoinStyleComboBox, SIGNAL( currentIndexChanged( int ) ), this, SLOT( updatePreview() ) );
connect( mBufferTranspFillChbx, SIGNAL( toggled( bool ) ), this, SLOT( updatePreview() ) );
connect( btnEngineSettings, SIGNAL( clicked() ), this, SLOT( showEngineConfigDialog() ) );
connect( btnExpression, SIGNAL( clicked() ), this, SLOT( showExpressionDialog() ) );
// set placement methods page based on geometry type
switch ( layer->geometryType() )
{
case QGis::Point:
stackedPlacement->setCurrentWidget( pagePoint );
break;
case QGis::Line:
stackedPlacement->setCurrentWidget( pageLine );
break;
case QGis::Polygon:
stackedPlacement->setCurrentWidget( pagePolygon );
break;
default:
Q_ASSERT( 0 && "NOOOO!" );
}
//mTabWidget->setEnabled( chkEnableLabeling->isChecked() );
chkMergeLines->setEnabled( layer->geometryType() == QGis::Line );
chkAddDirectionSymbol->setEnabled( layer->geometryType() == QGis::Line );
label_19->setEnabled( layer->geometryType() != QGis::Point );
mMinSizeSpinBox->setEnabled( layer->geometryType() != QGis::Point );
// load labeling settings from layer
QgsPalLayerSettings lyr;
lyr.readFromLayer( layer );
populateFieldNames();
populateDataDefinedCombos( lyr );
populateFontCapitalsComboBox();
chkEnableLabeling->setChecked( lyr.enabled );
mTabWidget->setEnabled( lyr.enabled );
cboFieldName->setEnabled( lyr.enabled );
btnExpression->setEnabled( lyr.enabled );
//Add the current expression to the bottom of the list.
if ( lyr.isExpression && !lyr.fieldName.isEmpty() )
cboFieldName->addItem( lyr.fieldName );
// placement
int distUnitIndex = lyr.distInMapUnits ? 1 : 0;
mXQuadOffset = lyr.xQuadOffset;
mYQuadOffset = lyr.yQuadOffset;
mCentroidRadioWhole->setChecked( lyr.centroidWhole );
mCentroidFrame->setVisible( false );
switch ( lyr.placement )
{
case QgsPalLayerSettings::AroundPoint:
radAroundPoint->setChecked( true );
radAroundCentroid->setChecked( true );
spinDistPoint->setValue( lyr.dist );
mPointDistanceUnitComboBox->setCurrentIndex( distUnitIndex );
mCentroidFrame->setVisible( layer->geometryType() == QGis::Polygon );
//spinAngle->setValue( lyr.angle );
break;
case QgsPalLayerSettings::OverPoint:
radOverPoint->setChecked( true );
radOverCentroid->setChecked( true );
mPointOffsetRadioAboveLeft->setChecked( mXQuadOffset == -1 && mYQuadOffset == 1 );
mPointOffsetRadioAbove->setChecked( mXQuadOffset == 0 && mYQuadOffset == 1 );
mPointOffsetRadioAboveRight->setChecked( mXQuadOffset == 1 && mYQuadOffset == 1 );
mPointOffsetRadioLeft->setChecked( mXQuadOffset == -1 && mYQuadOffset == 0 );
mPointOffsetRadioOver->setChecked( mXQuadOffset == 0 && mYQuadOffset == 0 );
mPointOffsetRadioRight->setChecked( mXQuadOffset == 1 && mYQuadOffset == 0 );
mPointOffsetRadioBelowLeft->setChecked( mXQuadOffset == -1 && mYQuadOffset == -1 );
mPointOffsetRadioBelow->setChecked( mXQuadOffset == 0 && mYQuadOffset == -1 );
mPointOffsetRadioBelowRight->setChecked( mXQuadOffset == 1 && mYQuadOffset == -1 );
mPointOffsetXOffsetSpinBox->setValue( lyr.xOffset );
mPointOffsetYOffsetSpinBox->setValue( lyr.yOffset );
mPointOffsetUnitsComboBox->setCurrentIndex( lyr.labelOffsetInMapUnits ? 1 : 0 );
mPointOffsetAngleSpinBox->setValue( lyr.angleOffset );
mCentroidFrame->setVisible( layer->geometryType() == QGis::Polygon );
break;
case QgsPalLayerSettings::Line:
radLineParallel->setChecked( true );
radPolygonPerimeter->setChecked( true );
break;
case QgsPalLayerSettings::Curved:
radLineCurved->setChecked( true );
break;
case QgsPalLayerSettings::Horizontal:
radPolygonHorizontal->setChecked( true );
radLineHorizontal->setChecked( true );
break;
case QgsPalLayerSettings::Free:
radPolygonFree->setChecked( true );
break;
default:
Q_ASSERT( 0 && "NOOO!" );
}
if ( lyr.placement == QgsPalLayerSettings::Line || lyr.placement == QgsPalLayerSettings::Curved )
{
spinDistLine->setValue( lyr.dist );
mLineDistanceUnitComboBox->setCurrentIndex( distUnitIndex );
chkLineAbove->setChecked( lyr.placementFlags & QgsPalLayerSettings::AboveLine );
chkLineBelow->setChecked( lyr.placementFlags & QgsPalLayerSettings::BelowLine );
chkLineOn->setChecked( lyr.placementFlags & QgsPalLayerSettings::OnLine );
if ( !( lyr.placementFlags & QgsPalLayerSettings::MapOrientation ) )
chkLineOrientationDependent->setChecked( true );
}
cboFieldName->setCurrentIndex( cboFieldName->findText( lyr.fieldName ) );
chkEnableLabeling->setChecked( lyr.enabled );
sliderPriority->setValue( lyr.priority );
chkNoObstacle->setChecked( !lyr.obstacle );
chkLabelPerFeaturePart->setChecked( lyr.labelPerPart );
mPalShowAllLabelsForLayerChkBx->setChecked( lyr.displayAll );
chkMergeLines->setChecked( lyr.mergeLines );
mMinSizeSpinBox->setValue( lyr.minFeatureSize );
chkAddDirectionSymbol->setChecked( lyr.addDirectionSymbol );
wrapCharacterEdit->setText( lyr.wrapChar );
chkPreserveRotation->setChecked( lyr.preserveRotation );
mPreviewBackgroundBtn->setColor( lyr.previewBkgrdColor );
setPreviewBackground( lyr.previewBkgrdColor );
bool scaleBased = ( lyr.scaleMin != 0 && lyr.scaleMax != 0 );
chkScaleBasedVisibility->setChecked( scaleBased );
if ( scaleBased )
{
spinScaleMin->setValue( lyr.scaleMin );
spinScaleMax->setValue( lyr.scaleMax );
}
bool buffer = ( lyr.bufferSize != 0 );
chkBuffer->setChecked( buffer );
if ( buffer )
{
spinBufferSize->setValue( lyr.bufferSize );
if ( lyr.bufferSizeInMapUnits )
{
mBufferUnitComboBox->setCurrentIndex( 1 );
}
else
{
mBufferUnitComboBox->setCurrentIndex( 0 );
}
btnBufferColor->setColor( lyr.bufferColor );
mBufferTranspSpinBox->setValue( lyr.bufferTransp );
mBufferJoinStyleComboBox->setPenJoinStyle( lyr.bufferJoinStyle );
mBufferTranspFillChbx->setChecked( !lyr.bufferNoFill );
}
bool formattedNumbers = lyr.formatNumbers;
bool plusSign = lyr.plusSign;
chkFormattedNumbers->setChecked( formattedNumbers );
if ( formattedNumbers )
{
spinDecimals->setValue( lyr.decimals );
}
if ( plusSign )
{
chkPlusSign->setChecked( plusSign );
}
if ( lyr.fontSizeInMapUnits )
{
mFontSizeUnitComboBox->setCurrentIndex( 1 );
}
else
{
mFontSizeUnitComboBox->setCurrentIndex( 0 );
}
mRefFont = lyr.textFont;
mFontSizeSpinBox->setValue( lyr.textFont.pointSizeF() );
btnTextColor->setColor( lyr.textColor );
mFontTranspSpinBox->setValue( lyr.textTransp );
updateFontViaStyle( lyr.textNamedStyle );
updateFont( mRefFont );
updateUi();
updateOptions();
connect( chkBuffer, SIGNAL( toggled( bool ) ), this, SLOT( updateUi() ) );
connect( chkScaleBasedVisibility, SIGNAL( toggled( bool ) ), this, SLOT( updateUi() ) );
connect( chkFormattedNumbers, SIGNAL( toggled( bool ) ), this, SLOT( updateUi() ) );
connect( chkLineAbove, SIGNAL( toggled( bool ) ), this, SLOT( updateUi() ) );
connect( chkLineBelow, SIGNAL( toggled( bool ) ), this, SLOT( updateUi() ) );
// setup connection to changes in the placement
QRadioButton* placementRadios[] =
{
radAroundPoint, radOverPoint, // point
radLineParallel, radLineCurved, radLineHorizontal, // line
radAroundCentroid, radPolygonHorizontal, radPolygonFree, radPolygonPerimeter // polygon
};
for ( unsigned int i = 0; i < sizeof( placementRadios ) / sizeof( QRadioButton* ); i++ )
{
connect( placementRadios[i], SIGNAL( toggled( bool ) ), this, SLOT( updateOptions() ) );
}
// setup connections for label quadrant offsets
QRadioButton* quadrantRadios[] =
{
mPointOffsetRadioAboveLeft, mPointOffsetRadioAbove, mPointOffsetRadioAboveRight,
mPointOffsetRadioLeft, mPointOffsetRadioOver, mPointOffsetRadioRight,
mPointOffsetRadioBelowLeft, mPointOffsetRadioBelow, mPointOffsetRadioBelowRight
};
for ( unsigned int i = 0; i < sizeof( quadrantRadios ) / sizeof( QRadioButton* ); i++ )
{
connect( quadrantRadios[i], SIGNAL( toggled( bool ) ), this, SLOT( updateQuadrant() ) );
}
// Global settings group for groupboxes' saved/retored collapsed state
// maintains state across different dialogs
foreach ( QgsCollapsibleGroupBox *grpbox, findChildren<QgsCollapsibleGroupBox*>() )
{
grpbox->setSettingGroup( QString( "mAdvLabelingDlg" ) );
}
bool QgsPalLabeling::willUseLayer( QgsVectorLayer* layer )
{
QgsPalLayerSettings lyrTmp;
lyrTmp.readFromLayer( layer );
return lyrTmp.enabled;
}
