Merge pull request #54 from NathanW2/expression-ui

Remove multiline label option and make it default and expression builder UI tweaks.

Author: wonder-sk

src/app/qgslabelinggui.cpp

@@ -138,7 +138,6 @@ QgsLabelingGui::QgsLabelingGui( QgsPalLabeling* lbl, QgsVectorLayer* layer, QgsM
   chkNoObstacle->setChecked( !lyr.obstacle );
   chkLabelPerFeaturePart->setChecked( lyr.labelPerPart );
   chkMergeLines->setChecked( lyr.mergeLines );
-  chkMultiLine->setChecked( lyr.multiLineLabels );
   mMinSizeSpinBox->setValue( lyr.minFeatureSize );
   chkAddDirectionSymbol->setChecked( lyr.addDirectionSymbol );
 
@@ -282,7 +281,6 @@ QgsPalLayerSettings QgsLabelingGui::layerSettings()
   lyr.obstacle = !chkNoObstacle->isChecked();
   lyr.labelPerPart = chkLabelPerFeaturePart->isChecked();
   lyr.mergeLines = chkMergeLines->isChecked();
-  lyr.multiLineLabels = chkMultiLine->isChecked();
   if ( chkScaleBasedVisibility->isChecked() )
   {
     lyr.scaleMin = spinScaleMin->value();

src/core/qgspallabeling.cpp

@@ -152,7 +152,6 @@ QgsPalLayerSettings::QgsPalLayerSettings()
   plusSign = false;
   labelPerPart = false;
   mergeLines = false;
-  multiLineLabels = true;
   minFeatureSize = 0.0;
   vectorScaleFactor = 1.0;
   rasterCompressFactor = 1.0;
@@ -183,7 +182,6 @@ QgsPalLayerSettings::QgsPalLayerSettings( const QgsPalLayerSettings& s )
   plusSign = s.plusSign;
   labelPerPart = s.labelPerPart;
   mergeLines = s.mergeLines;
-  multiLineLabels = s.multiLineLabels;
   minFeatureSize = s.minFeatureSize;
   vectorScaleFactor = s.vectorScaleFactor;
   rasterCompressFactor = s.rasterCompressFactor;
@@ -328,7 +326,6 @@ void QgsPalLayerSettings::readFromLayer( QgsVectorLayer* layer )
   plusSign = layer->customProperty( "labeling/plussign" ).toInt();
   labelPerPart = layer->customProperty( "labeling/labelPerPart" ).toBool();
   mergeLines = layer->customProperty( "labeling/mergeLines" ).toBool();
-  multiLineLabels = layer->customProperty( "labeling/multiLineLabels" ).toBool();
   addDirectionSymbol = layer->customProperty( "labeling/addDirectionSymbol" ).toBool();
   minFeatureSize = layer->customProperty( "labeling/minFeatureSize" ).toDouble();
   fontSizeInMapUnits = layer->customProperty( "labeling/fontSizeInMapUnits" ).toBool();
@@ -367,7 +364,6 @@ void QgsPalLayerSettings::writeToLayer( QgsVectorLayer* layer )
   layer->setCustomProperty( "labeling/plussign", plusSign );
   layer->setCustomProperty( "labeling/labelPerPart", labelPerPart );
   layer->setCustomProperty( "labeling/mergeLines", mergeLines );
-  layer->setCustomProperty( "labeling/multiLineLabels", multiLineLabels );
   layer->setCustomProperty( "labeling/addDirectionSymbol", addDirectionSymbol );
   layer->setCustomProperty( "labeling/minFeatureSize", minFeatureSize );
   layer->setCustomProperty( "labeling/fontSizeInMapUnits", fontSizeInMapUnits );
@@ -430,33 +426,25 @@ void QgsPalLayerSettings::calculateLabelSize( const QFontMetricsF* fm, QString t
     return;
   }
 
-  if ( addDirectionSymbol && !multiLineLabels && placement == QgsPalLayerSettings::Line ) //consider the space needed for the direction symbol
+  //consider the space needed for the direction symbol
+  if ( addDirectionSymbol && placement == QgsPalLayerSettings::Line )
   {
     text.append( ">" );
   }
 
   double w, h;
-  if ( !multiLineLabels )
+  QStringList multiLineSplit = text.split( "\n" );
+  h = fm->height() * multiLineSplit.size() / rasterCompressFactor;
+  w = 0;
+  for ( int i = 0; i < multiLineSplit.size(); ++i )
   {
-    QRectF labelRect = fm->boundingRect( text );
-    w = labelRect.width() / rasterCompressFactor;
-    h = labelRect.height() / rasterCompressFactor;
-  }
-  else
-  {
-    QStringList multiLineSplit = text.split( "\n" );
-    h = fm->height() * multiLineSplit.size() / rasterCompressFactor;
-    w = 0;
-    for ( int i = 0; i < multiLineSplit.size(); ++i )
+    double width = fm->width( multiLineSplit.at( i ) );
+    if ( width > w )
     {
-      double width = fm->width( multiLineSplit.at( i ) );
-      if ( width > w )
-      {
-        w = width;
-      } 
+      w = width;
     }
-    w /= rasterCompressFactor;
   }
+  w /= rasterCompressFactor;
   QgsPoint ptSize = xform->toMapCoordinatesF( w, h );
 
   labelX = qAbs( ptSize.x() - ptZero.x() );
@@ -1337,7 +1325,7 @@ void QgsPalLabeling::drawLabel( pal::LabelPosition* label, QPainter* painter, co
 
   //add the direction symbol if needed
   if ( !txt.isEmpty() && lyr.placement == QgsPalLayerSettings::Line &&
-       lyr.addDirectionSymbol && !lyr.multiLineLabels )
+       lyr.addDirectionSymbol )
   {
     if ( label->getReversed() )
     {
@@ -1352,14 +1340,7 @@ void QgsPalLabeling::drawLabel( pal::LabelPosition* label, QPainter* painter, co
   //QgsDebugMsg( "drawLabel " + QString::number( drawBuffer ) + " " + txt );
 
   QStringList multiLineList;
-  if ( lyr.multiLineLabels )
-  {
-    multiLineList = txt.split( "\n" );
-  }
-  else
-  {
-    multiLineList << txt;
-  }
+  multiLineList = txt.split( "\n" );
 
   for ( int i = 0; i < multiLineList.size(); ++i )
   {

src/gui/qgsexpressionbuilderwidget.cpp

@@ -25,8 +25,10 @@ QgsExpressionBuilderWidget::QgsExpressionBuilderWidget( QWidget *parent )
 {
   setupUi( this );
 
-  mValueListWidget->hide();
-  mValueListLabel->hide();
+  mValueGroupBox->hide();
+  // The open and save button are for future.
+  btnOpen->hide();
+  btnSave->hide();
 
   mModel = new QStandardItemModel( );
   mProxyModel = new QgsExpressionItemSearchProxy();
@@ -112,8 +114,7 @@ void QgsExpressionBuilderWidget::on_expressionTree_clicked( const QModelIndex &i
   else
   {
     // Show the help for the current item.
-    mValueListWidget->hide();
-    mValueListLabel->hide();
+    mValueGroupBox->hide();
     mValueListWidget->clear();
     txtHelpText->setText( item->getHelpText() );
     txtHelpText->setToolTip( txtHelpText->text() );
@@ -327,8 +328,7 @@ void QgsExpressionBuilderWidget::loadSampleValues()
   if ( !mLayer )
     return;
 
-  mValueListWidget->show();
-  mValueListLabel->show();
+  mValueGroupBox->show();
   int fieldIndex = mLayer->fieldNameIndex( item->text() );
   fillFieldValues( fieldIndex, 10 );
 }
@@ -342,8 +342,7 @@ void QgsExpressionBuilderWidget::loadAllValues()
   if ( !mLayer )
     return;
 
-  mValueListWidget->show();
-  mValueListLabel->show();
+  mValueGroupBox->show();
   int fieldIndex = mLayer->fieldNameIndex( item->text() );
   fillFieldValues( fieldIndex, -1 );
 }