/
qgsdiagramproperties.cpp
1042 lines (908 loc) · 39.9 KB
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qgsdiagramproperties.cpp
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/***************************************************************************
qgsdiagramproperties.cpp
Adjust the properties for diagrams
-------------------
begin : August 2012
copyright : (C) Matthias Kuhn
email : matthias at opengis dot ch
***************************************************************************
* *
* 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 "diagram/qgshistogramdiagram.h"
#include "diagram/qgspiediagram.h"
#include "diagram/qgstextdiagram.h"
#include "qgsproject.h"
#include "qgsapplication.h"
#include "qgsdatadefinedsizelegend.h"
#include "qgsdatadefinedsizelegendwidget.h"
#include "qgsdiagramproperties.h"
#include "qgsdiagramrenderer.h"
#include "qgslabelengineconfigdialog.h"
#include "qgsmessagebar.h"
#include "qgsvectorlayerproperties.h"
#include "qgsvectordataprovider.h"
#include "qgsfeatureiterator.h"
#include "qgscolordialog.h"
#include "qgsguiutils.h"
#include "qgssymbolselectordialog.h"
#include "qgsstyle.h"
#include "qgsmapcanvas.h"
#include "qgsexpressionbuilderdialog.h"
#include "qgslogger.h"
#include "qgisapp.h"
#include "qgssettings.h"
#include <QList>
#include <QMessageBox>
QgsExpressionContext QgsDiagramProperties::createExpressionContext() const
{
QgsExpressionContext expContext;
expContext << QgsExpressionContextUtils::globalScope()
<< QgsExpressionContextUtils::projectScope( QgsProject::instance() )
<< QgsExpressionContextUtils::atlasScope( nullptr )
<< QgsExpressionContextUtils::mapSettingsScope( mMapCanvas->mapSettings() )
<< QgsExpressionContextUtils::layerScope( mLayer );
return expContext;
}
QgsDiagramProperties::QgsDiagramProperties( QgsVectorLayer *layer, QWidget *parent, QgsMapCanvas *canvas )
: QWidget( parent )
, mMapCanvas( canvas )
{
mLayer = layer;
if ( !layer )
{
return;
}
setupUi( this );
// get rid of annoying outer focus rect on Mac
mDiagramOptionsListWidget->setAttribute( Qt::WA_MacShowFocusRect, false );
mDiagramFontButton->setMode( QgsFontButton::ModeQFont );
mDiagramTypeComboBox->blockSignals( true );
QPixmap pix = QgsApplication::getThemePixmap( QStringLiteral( "diagramNone" ) );
mDiagramTypeComboBox->addItem( pix, tr( "No diagrams" ), "None" );
pix = QgsApplication::getThemePixmap( QStringLiteral( "pie-chart" ) );
mDiagramTypeComboBox->addItem( pix, tr( "Pie chart" ), DIAGRAM_NAME_PIE );
pix = QgsApplication::getThemePixmap( QStringLiteral( "text" ) );
mDiagramTypeComboBox->addItem( pix, tr( "Text diagram" ), DIAGRAM_NAME_TEXT );
pix = QgsApplication::getThemePixmap( QStringLiteral( "histogram" ) );
mDiagramTypeComboBox->addItem( pix, tr( "Histogram" ), DIAGRAM_NAME_HISTOGRAM );
mDiagramTypeComboBox->blockSignals( false );
mScaleRangeWidget->setMapCanvas( mMapCanvas );
mSizeFieldExpressionWidget->registerExpressionContextGenerator( this );
mBackgroundColorButton->setColorDialogTitle( tr( "Select Background Color" ) );
mBackgroundColorButton->setAllowOpacity( true );
mBackgroundColorButton->setContext( QStringLiteral( "symbology" ) );
mBackgroundColorButton->setShowNoColor( true );
mBackgroundColorButton->setNoColorString( tr( "Transparent background" ) );
mDiagramPenColorButton->setColorDialogTitle( tr( "Select Pen Color" ) );
mDiagramPenColorButton->setAllowOpacity( true );
mDiagramPenColorButton->setContext( QStringLiteral( "symbology" ) );
mDiagramPenColorButton->setShowNoColor( true );
mDiagramPenColorButton->setNoColorString( tr( "Transparent stroke" ) );
mMaxValueSpinBox->setShowClearButton( false );
mDiagramAttributesTreeWidget->setItemDelegateForColumn( ColumnAttributeExpression, new EditBlockerDelegate( this ) );
mDiagramAttributesTreeWidget->setItemDelegateForColumn( ColumnColor, new EditBlockerDelegate( this ) );
connect( mFixedSizeRadio, &QRadioButton::toggled, this, &QgsDiagramProperties::scalingTypeChanged );
connect( mAttributeBasedScalingRadio, &QRadioButton::toggled, this, &QgsDiagramProperties::scalingTypeChanged );
mDiagramUnitComboBox->setUnits( QgsUnitTypes::RenderUnitList() << QgsUnitTypes::RenderMillimeters << QgsUnitTypes::RenderMapUnits << QgsUnitTypes::RenderPixels
<< QgsUnitTypes::RenderPoints << QgsUnitTypes::RenderInches );
mDiagramLineUnitComboBox->setUnits( QgsUnitTypes::RenderUnitList() << QgsUnitTypes::RenderMillimeters << QgsUnitTypes::RenderMapUnits << QgsUnitTypes::RenderPixels
<< QgsUnitTypes::RenderPoints << QgsUnitTypes::RenderInches );
QgsWkbTypes::GeometryType layerType = layer->geometryType();
if ( layerType == QgsWkbTypes::UnknownGeometry || layerType == QgsWkbTypes::NullGeometry )
{
mDiagramTypeComboBox->setEnabled( false );
mDiagramFrame->setEnabled( false );
}
// set placement methods page based on geometry type
switch ( layerType )
{
case QgsWkbTypes::PointGeometry:
stackedPlacement->setCurrentWidget( pagePoint );
mLinePlacementFrame->setVisible( false );
break;
case QgsWkbTypes::LineGeometry:
stackedPlacement->setCurrentWidget( pageLine );
mLinePlacementFrame->setVisible( true );
break;
case QgsWkbTypes::PolygonGeometry:
stackedPlacement->setCurrentWidget( pagePolygon );
mLinePlacementFrame->setVisible( false );
break;
case QgsWkbTypes::NullGeometry:
case QgsWkbTypes::UnknownGeometry:
break;
}
//insert placement options
// setup point placement button group
mPlacePointBtnGrp = new QButtonGroup( this );
mPlacePointBtnGrp->addButton( radAroundPoint );
mPlacePointBtnGrp->addButton( radOverPoint );
mPlacePointBtnGrp->setExclusive( true );
connect( mPlacePointBtnGrp, static_cast<void ( QButtonGroup::* )( int )>( &QButtonGroup::buttonClicked ), this, &QgsDiagramProperties::updatePlacementWidgets );
// setup line placement button group
mPlaceLineBtnGrp = new QButtonGroup( this );
mPlaceLineBtnGrp->addButton( radAroundLine );
mPlaceLineBtnGrp->addButton( radOverLine );
mPlaceLineBtnGrp->setExclusive( true );
connect( mPlaceLineBtnGrp, static_cast<void ( QButtonGroup::* )( int )>( &QButtonGroup::buttonClicked ), this, &QgsDiagramProperties::updatePlacementWidgets );
// setup polygon placement button group
mPlacePolygonBtnGrp = new QButtonGroup( this );
mPlacePolygonBtnGrp->addButton( radAroundCentroid );
mPlacePolygonBtnGrp->addButton( radOverCentroid );
mPlacePolygonBtnGrp->addButton( radPolygonPerimeter );
mPlacePolygonBtnGrp->addButton( radInsidePolygon );
mPlacePolygonBtnGrp->setExclusive( true );
connect( mPlacePolygonBtnGrp, static_cast<void ( QButtonGroup::* )( int )>( &QButtonGroup::buttonClicked ), this, &QgsDiagramProperties::updatePlacementWidgets );
mLabelPlacementComboBox->addItem( tr( "Height" ), QgsDiagramSettings::Height );
mLabelPlacementComboBox->addItem( tr( "x-height" ), QgsDiagramSettings::XHeight );
mScaleDependencyComboBox->addItem( tr( "Area" ), true );
mScaleDependencyComboBox->addItem( tr( "Diameter" ), false );
mAngleOffsetComboBox->addItem( tr( "Top" ), 270 );
mAngleOffsetComboBox->addItem( tr( "Right" ), 0 );
mAngleOffsetComboBox->addItem( tr( "Bottom" ), 90 );
mAngleOffsetComboBox->addItem( tr( "Left" ), 180 );
QgsSettings settings;
// reset horiz stretch of left side of options splitter (set to 1 for previewing in Qt Designer)
QSizePolicy policy( mDiagramOptionsListFrame->sizePolicy() );
policy.setHorizontalStretch( 0 );
mDiagramOptionsListFrame->setSizePolicy( policy );
if ( !settings.contains( QStringLiteral( "/Windows/Diagrams/OptionsSplitState" ) ) )
{
// set left list widget width on initial showing
QList<int> splitsizes;
splitsizes << 115;
mDiagramOptionsSplitter->setSizes( splitsizes );
}
// restore dialog, splitters and current tab
mDiagramOptionsSplitter->restoreState( settings.value( QStringLiteral( "Windows/Diagrams/OptionsSplitState" ) ).toByteArray() );
mDiagramOptionsListWidget->setCurrentRow( settings.value( QStringLiteral( "Windows/Diagrams/Tab" ), 0 ).toInt() );
// field combo and expression button
mSizeFieldExpressionWidget->setLayer( mLayer );
QgsDistanceArea myDa;
myDa.setSourceCrs( mLayer->crs() );
myDa.setEllipsoid( QgsProject::instance()->ellipsoid() );
mSizeFieldExpressionWidget->setGeomCalculator( myDa );
//insert all attributes into the combo boxes
const QgsFields &layerFields = layer->fields();
for ( int idx = 0; idx < layerFields.count(); ++idx )
{
QTreeWidgetItem *newItem = new QTreeWidgetItem( mAttributesTreeWidget );
QString name = QStringLiteral( "\"%1\"" ).arg( layerFields.at( idx ).name() );
newItem->setText( 0, name );
newItem->setData( 0, RoleAttributeExpression, name );
newItem->setFlags( newItem->flags() & ~Qt::ItemIsDropEnabled );
}
const QgsDiagramRenderer *dr = layer->diagramRenderer();
if ( !dr ) //no diagram renderer yet, insert reasonable default
{
mDiagramTypeComboBox->blockSignals( true );
mDiagramTypeComboBox->setCurrentIndex( 0 );
mDiagramTypeComboBox->blockSignals( false );
mFixedSizeRadio->setChecked( true );
mDiagramUnitComboBox->setUnit( QgsUnitTypes::RenderMillimeters );
mDiagramLineUnitComboBox->setUnit( QgsUnitTypes::RenderMillimeters );
mLabelPlacementComboBox->setCurrentIndex( mLabelPlacementComboBox->findText( tr( "x-height" ) ) );
mDiagramSizeSpinBox->setEnabled( true );
mDiagramSizeSpinBox->setValue( 15 );
mLinearScaleFrame->setEnabled( false );
mIncreaseMinimumSizeSpinBox->setEnabled( false );
mIncreaseMinimumSizeLabel->setEnabled( false );
mBarWidthSpinBox->setValue( 5 );
mScaleVisibilityGroupBox->setChecked( layer->hasScaleBasedVisibility() );
mScaleRangeWidget->setScaleRange( layer->minimumScale(), layer->maximumScale() );
mShowAllCheckBox->setChecked( true );
mCheckBoxAttributeLegend->setChecked( true );
switch ( layerType )
{
case QgsWkbTypes::PointGeometry:
radAroundPoint->setChecked( true );
break;
case QgsWkbTypes::LineGeometry:
radAroundLine->setChecked( true );
chkLineAbove->setChecked( true );
chkLineBelow->setChecked( false );
chkLineOn->setChecked( false );
chkLineOrientationDependent->setChecked( false );
break;
case QgsWkbTypes::PolygonGeometry:
radAroundCentroid->setChecked( true );
break;
case QgsWkbTypes::UnknownGeometry:
case QgsWkbTypes::NullGeometry:
break;
}
mBackgroundColorButton->setColor( QColor( 255, 255, 255, 255 ) );
//force a refresh of widget status to match diagram type
on_mDiagramTypeComboBox_currentIndexChanged( mDiagramTypeComboBox->currentIndex() );
}
else // already a diagram renderer present
{
//single category renderer or interpolated one?
if ( dr->rendererName() == QLatin1String( "SingleCategory" ) )
{
mFixedSizeRadio->setChecked( true );
}
else
{
mAttributeBasedScalingRadio->setChecked( true );
}
mDiagramSizeSpinBox->setEnabled( mFixedSizeRadio->isChecked() );
mLinearScaleFrame->setEnabled( mAttributeBasedScalingRadio->isChecked() );
mCheckBoxAttributeLegend->setChecked( dr->attributeLegend() );
//assume single category or linearly interpolated diagram renderer for now
QList<QgsDiagramSettings> settingList = dr->diagramSettings();
if ( !settingList.isEmpty() )
{
mDiagramFrame->setEnabled( settingList.at( 0 ).enabled );
mDiagramFontButton->setCurrentFont( settingList.at( 0 ).font );
QSizeF size = settingList.at( 0 ).size;
mBackgroundColorButton->setColor( settingList.at( 0 ).backgroundColor );
mOpacityWidget->setOpacity( settingList.at( 0 ).opacity );
mDiagramPenColorButton->setColor( settingList.at( 0 ).penColor );
mPenWidthSpinBox->setValue( settingList.at( 0 ).penWidth );
mDiagramSizeSpinBox->setValue( ( size.width() + size.height() ) / 2.0 );
mScaleRangeWidget->setScaleRange( ( settingList.at( 0 ).minimumScale > 0 ? settingList.at( 0 ).minimumScale : layer->minimumScale() ),
( settingList.at( 0 ).maximumScale > 0 ? settingList.at( 0 ).maximumScale : layer->maximumScale() ) );
mScaleVisibilityGroupBox->setChecked( settingList.at( 0 ).scaleBasedVisibility );
mDiagramUnitComboBox->setUnit( settingList.at( 0 ).sizeType );
mDiagramUnitComboBox->setMapUnitScale( settingList.at( 0 ).sizeScale );
mDiagramLineUnitComboBox->setUnit( settingList.at( 0 ).lineSizeUnit );
mDiagramLineUnitComboBox->setMapUnitScale( settingList.at( 0 ).lineSizeScale );
if ( settingList.at( 0 ).labelPlacementMethod == QgsDiagramSettings::Height )
{
mLabelPlacementComboBox->setCurrentIndex( 0 );
}
else
{
mLabelPlacementComboBox->setCurrentIndex( 1 );
}
mAngleOffsetComboBox->setCurrentIndex( mAngleOffsetComboBox->findData( settingList.at( 0 ).rotationOffset ) );
mOrientationLeftButton->setProperty( "direction", QgsDiagramSettings::Left );
mOrientationRightButton->setProperty( "direction", QgsDiagramSettings::Right );
mOrientationUpButton->setProperty( "direction", QgsDiagramSettings::Up );
mOrientationDownButton->setProperty( "direction", QgsDiagramSettings::Down );
switch ( settingList.at( 0 ).diagramOrientation )
{
case QgsDiagramSettings::Left:
mOrientationLeftButton->setChecked( true );
break;
case QgsDiagramSettings::Right:
mOrientationRightButton->setChecked( true );
break;
case QgsDiagramSettings::Up:
mOrientationUpButton->setChecked( true );
break;
case QgsDiagramSettings::Down:
mOrientationDownButton->setChecked( true );
break;
}
mBarWidthSpinBox->setValue( settingList.at( 0 ).barWidth );
mIncreaseSmallDiagramsCheck->setChecked( settingList.at( 0 ).minimumSize != 0 );
mIncreaseMinimumSizeSpinBox->setEnabled( mIncreaseSmallDiagramsCheck->isChecked() );
mIncreaseMinimumSizeLabel->setEnabled( mIncreaseSmallDiagramsCheck->isChecked() );
mIncreaseMinimumSizeSpinBox->setValue( settingList.at( 0 ).minimumSize );
if ( settingList.at( 0 ).scaleByArea )
{
mScaleDependencyComboBox->setCurrentIndex( 0 );
}
else
{
mScaleDependencyComboBox->setCurrentIndex( 1 );
}
QList< QColor > categoryColors = settingList.at( 0 ).categoryColors;
QList< QString > categoryAttributes = settingList.at( 0 ).categoryAttributes;
QList< QString > categoryLabels = settingList.at( 0 ).categoryLabels;
QList< QString >::const_iterator catIt = categoryAttributes.constBegin();
QList< QColor >::const_iterator coIt = categoryColors.constBegin();
QList< QString >::const_iterator labIt = categoryLabels.constBegin();
for ( ; catIt != categoryAttributes.constEnd(); ++catIt, ++coIt, ++labIt )
{
QTreeWidgetItem *newItem = new QTreeWidgetItem( mDiagramAttributesTreeWidget );
newItem->setText( 0, *catIt );
newItem->setData( 0, RoleAttributeExpression, *catIt );
newItem->setFlags( newItem->flags() & ~Qt::ItemIsDropEnabled );
QColor col( *coIt );
col.setAlpha( 255 );
newItem->setBackground( 1, QBrush( col ) );
newItem->setText( 2, *labIt );
newItem->setFlags( newItem->flags() | Qt::ItemIsEditable );
}
}
if ( dr->rendererName() == QLatin1String( "LinearlyInterpolated" ) )
{
const QgsLinearlyInterpolatedDiagramRenderer *lidr = dynamic_cast<const QgsLinearlyInterpolatedDiagramRenderer *>( dr );
if ( lidr )
{
mDiagramSizeSpinBox->setEnabled( false );
mLinearScaleFrame->setEnabled( true );
mMaxValueSpinBox->setValue( lidr->upperValue() );
mSizeSpinBox->setValue( ( lidr->upperSize().width() + lidr->upperSize().height() ) / 2 );
if ( lidr->classificationAttributeIsExpression() )
{
mSizeFieldExpressionWidget->setField( lidr->classificationAttributeExpression() );
}
else
{
mSizeFieldExpressionWidget->setField( lidr->classificationField() );
}
mSizeLegend.reset( lidr->dataDefinedSizeLegend() ? new QgsDataDefinedSizeLegend( *lidr->dataDefinedSizeLegend() ) : nullptr );
}
}
const QgsDiagramLayerSettings *dls = layer->diagramLayerSettings();
if ( dls )
{
mDiagramDistanceSpinBox->setValue( dls->distance() );
mPrioritySlider->setValue( dls->priority() );
mZIndexSpinBox->setValue( dls->zIndex() );
switch ( dls->placement() )
{
case QgsDiagramLayerSettings::AroundPoint:
radAroundPoint->setChecked( true );
radAroundCentroid->setChecked( true );
break;
case QgsDiagramLayerSettings::OverPoint:
radOverPoint->setChecked( true );
radOverCentroid->setChecked( true );
break;
case QgsDiagramLayerSettings::Line:
radAroundLine->setChecked( true );
radPolygonPerimeter->setChecked( true );
break;
case QgsDiagramLayerSettings::Horizontal:
radOverLine->setChecked( true );
radInsidePolygon->setChecked( true );
break;
default:
break;
}
chkLineAbove->setChecked( dls->linePlacementFlags() & QgsDiagramLayerSettings::AboveLine );
chkLineBelow->setChecked( dls->linePlacementFlags() & QgsDiagramLayerSettings::BelowLine );
chkLineOn->setChecked( dls->linePlacementFlags() & QgsDiagramLayerSettings::OnLine );
if ( !( dls->linePlacementFlags() & QgsDiagramLayerSettings::MapOrientation ) )
chkLineOrientationDependent->setChecked( true );
updatePlacementWidgets();
mShowAllCheckBox->setChecked( dls->showAllDiagrams() );
mDataDefinedProperties = dls->dataDefinedProperties();
}
if ( dr->diagram() )
{
mDiagramType = dr->diagram()->diagramName();
mDiagramTypeComboBox->blockSignals( true );
mDiagramTypeComboBox->setCurrentIndex( settingList.at( 0 ).enabled ? mDiagramTypeComboBox->findData( mDiagramType ) : 0 );
mDiagramTypeComboBox->blockSignals( false );
//force a refresh of widget status to match diagram type
on_mDiagramTypeComboBox_currentIndexChanged( mDiagramTypeComboBox->currentIndex() );
if ( mDiagramTypeComboBox->currentIndex() == -1 )
{
QMessageBox::warning( this, tr( "Unknown diagram type." ),
tr( "The diagram type '%1' is unknown. A default type is selected for you." ).arg( mDiagramType ), QMessageBox::Ok );
mDiagramTypeComboBox->setCurrentIndex( mDiagramTypeComboBox->findData( DIAGRAM_NAME_PIE ) );
}
}
}
connect( mAddAttributeExpression, &QPushButton::clicked, this, &QgsDiagramProperties::showAddAttributeExpressionDialog );
registerDataDefinedButton( mBackgroundColorDDBtn, QgsDiagramLayerSettings::BackgroundColor );
registerDataDefinedButton( mLineColorDDBtn, QgsDiagramLayerSettings::StrokeColor );
registerDataDefinedButton( mLineWidthDDBtn, QgsDiagramLayerSettings::StrokeWidth );
registerDataDefinedButton( mCoordXDDBtn, QgsDiagramLayerSettings::PositionX );
registerDataDefinedButton( mCoordYDDBtn, QgsDiagramLayerSettings::PositionY );
registerDataDefinedButton( mDistanceDDBtn, QgsDiagramLayerSettings::Distance );
registerDataDefinedButton( mPriorityDDBtn, QgsDiagramLayerSettings::Priority );
registerDataDefinedButton( mZOrderDDBtn, QgsDiagramLayerSettings::ZIndex );
registerDataDefinedButton( mShowDiagramDDBtn, QgsDiagramLayerSettings::Show );
registerDataDefinedButton( mAlwaysShowDDBtn, QgsDiagramLayerSettings::AlwaysShow );
registerDataDefinedButton( mIsObstacleDDBtn, QgsDiagramLayerSettings::IsObstacle );
registerDataDefinedButton( mStartAngleDDBtn, QgsDiagramLayerSettings::StartAngle );
connect( mButtonSizeLegendSettings, &QPushButton::clicked, this, &QgsDiagramProperties::showSizeLegendDialog );
}
QgsDiagramProperties::~QgsDiagramProperties()
{
QgsSettings settings;
settings.setValue( QStringLiteral( "Windows/Diagrams/OptionsSplitState" ), mDiagramOptionsSplitter->saveState() );
settings.setValue( QStringLiteral( "Windows/Diagrams/Tab" ), mDiagramOptionsListWidget->currentRow() );
}
void QgsDiagramProperties::registerDataDefinedButton( QgsPropertyOverrideButton *button, QgsDiagramLayerSettings::Property key )
{
button->init( key, mDataDefinedProperties, QgsDiagramLayerSettings::propertyDefinitions(), mLayer );
connect( button, &QgsPropertyOverrideButton::changed, this, &QgsDiagramProperties::updateProperty );
button->registerExpressionContextGenerator( this );
}
void QgsDiagramProperties::updateProperty()
{
QgsPropertyOverrideButton *button = qobject_cast<QgsPropertyOverrideButton *>( sender() );
QgsDiagramLayerSettings::Property key = static_cast< QgsDiagramLayerSettings::Property >( button->propertyKey() );
mDataDefinedProperties.setProperty( key, button->toProperty() );
}
void QgsDiagramProperties::on_mDiagramTypeComboBox_currentIndexChanged( int index )
{
if ( index == 0 )
{
mDiagramFrame->setEnabled( false );
}
else
{
mDiagramFrame->setEnabled( true );
mDiagramType = mDiagramTypeComboBox->itemData( index ).toString();
if ( DIAGRAM_NAME_TEXT == mDiagramType )
{
mTextOptionsFrame->show();
mBackgroundColorLabel->show();
mBackgroundColorButton->show();
mBackgroundColorDDBtn->show();
mDiagramFontButton->show();
}
else
{
mTextOptionsFrame->hide();
mBackgroundColorLabel->hide();
mBackgroundColorButton->hide();
mBackgroundColorDDBtn->hide();
mDiagramFontButton->hide();
}
if ( DIAGRAM_NAME_HISTOGRAM == mDiagramType )
{
mBarWidthLabel->show();
mBarWidthSpinBox->show();
mBarOptionsFrame->show();
mAttributeBasedScalingRadio->setChecked( true );
mFixedSizeRadio->setEnabled( false );
mDiagramSizeSpinBox->setEnabled( false );
mLinearlyScalingLabel->setText( tr( "Bar length: Scale linearly, so that the following value matches the specified bar length:" ) );
mSizeLabel->setText( tr( "Bar length" ) );
mFrameIncreaseSize->setVisible( false );
}
else
{
mBarWidthLabel->hide();
mBarWidthSpinBox->hide();
mBarOptionsFrame->hide();
mLinearlyScalingLabel->setText( tr( "Scale linearly between 0 and the following attribute value / diagram size:" ) );
mSizeLabel->setText( tr( "Size" ) );
mAttributeBasedScalingRadio->setEnabled( true );
mFixedSizeRadio->setEnabled( true );
mDiagramSizeSpinBox->setEnabled( mFixedSizeRadio->isChecked() );
mFrameIncreaseSize->setVisible( true );
}
if ( DIAGRAM_NAME_TEXT == mDiagramType || DIAGRAM_NAME_PIE == mDiagramType )
{
mScaleDependencyComboBox->show();
mScaleDependencyLabel->show();
}
else
{
mScaleDependencyComboBox->hide();
mScaleDependencyLabel->hide();
}
if ( DIAGRAM_NAME_PIE == mDiagramType )
{
mAngleOffsetComboBox->show();
mAngleOffsetLabel->show();
mStartAngleDDBtn->show();
}
else
{
mAngleOffsetComboBox->hide();
mAngleOffsetLabel->hide();
mStartAngleDDBtn->hide();
}
}
}
QString QgsDiagramProperties::guessLegendText( const QString &expression )
{
//trim unwanted characters from expression text for legend
QString text = expression.mid( expression.startsWith( '\"' ) ? 1 : 0 );
if ( text.endsWith( '\"' ) )
text.chop( 1 );
return text;
}
void QgsDiagramProperties::addAttribute( QTreeWidgetItem *item )
{
QTreeWidgetItem *newItem = new QTreeWidgetItem( mDiagramAttributesTreeWidget );
newItem->setText( 0, item->text( 0 ) );
newItem->setText( 2, guessLegendText( item->text( 0 ) ) );
newItem->setData( 0, RoleAttributeExpression, item->data( 0, RoleAttributeExpression ) );
newItem->setFlags( ( newItem->flags() | Qt::ItemIsEditable ) & ~Qt::ItemIsDropEnabled );
//set initial color for diagram category
int red = 1 + ( int )( 255.0 * qrand() / ( RAND_MAX + 1.0 ) );
int green = 1 + ( int )( 255.0 * qrand() / ( RAND_MAX + 1.0 ) );
int blue = 1 + ( int )( 255.0 * qrand() / ( RAND_MAX + 1.0 ) );
QColor randomColor( red, green, blue );
newItem->setBackground( 1, QBrush( randomColor ) );
mDiagramAttributesTreeWidget->addTopLevelItem( newItem );
}
void QgsDiagramProperties::on_mAddCategoryPushButton_clicked()
{
Q_FOREACH ( QTreeWidgetItem *attributeItem, mAttributesTreeWidget->selectedItems() )
{
addAttribute( attributeItem );
}
}
void QgsDiagramProperties::on_mAttributesTreeWidget_itemDoubleClicked( QTreeWidgetItem *item, int column )
{
Q_UNUSED( column );
addAttribute( item );
}
void QgsDiagramProperties::on_mRemoveCategoryPushButton_clicked()
{
Q_FOREACH ( QTreeWidgetItem *attributeItem, mDiagramAttributesTreeWidget->selectedItems() )
{
delete attributeItem;
}
}
void QgsDiagramProperties::on_mFindMaximumValueButton_clicked()
{
if ( !mLayer )
return;
float maxValue = 0.0;
bool isExpression;
QString sizeFieldNameOrExp = mSizeFieldExpressionWidget->currentField( &isExpression );
if ( isExpression )
{
QgsExpression exp( sizeFieldNameOrExp );
QgsExpressionContext context;
context << QgsExpressionContextUtils::globalScope()
<< QgsExpressionContextUtils::projectScope( QgsProject::instance() )
<< QgsExpressionContextUtils::mapSettingsScope( mMapCanvas->mapSettings() )
<< QgsExpressionContextUtils::layerScope( mLayer );
exp.prepare( &context );
if ( !exp.hasEvalError() )
{
QgsFeature feature;
QgsFeatureIterator features = mLayer->getFeatures();
while ( features.nextFeature( *&feature ) )
{
context.setFeature( feature );
maxValue = std::max( maxValue, exp.evaluate( &context ).toFloat() );
}
}
else
{
QgsDebugMsgLevel( "Prepare error:" + exp.evalErrorString(), 4 );
}
}
else
{
int attributeNumber = mLayer->fields().lookupField( sizeFieldNameOrExp );
maxValue = mLayer->maximumValue( attributeNumber ).toFloat();
}
mMaxValueSpinBox->setValue( maxValue );
}
void QgsDiagramProperties::on_mDiagramAttributesTreeWidget_itemDoubleClicked( QTreeWidgetItem *item, int column )
{
switch ( column )
{
case ColumnAttributeExpression:
{
QString currentExpression = item->data( 0, RoleAttributeExpression ).toString();
QString newExpression = showExpressionBuilder( currentExpression );
if ( !newExpression.isEmpty() )
{
item->setData( 0, Qt::DisplayRole, newExpression );
item->setData( 0, RoleAttributeExpression, newExpression );
}
break;
}
case ColumnColor:
{
QColor newColor = QgsColorDialog::getColor( item->background( 1 ).color(), nullptr );
if ( newColor.isValid() )
{
item->setBackground( 1, QBrush( newColor ) );
}
break;
}
case ColumnLegendText:
break;
}
}
void QgsDiagramProperties::on_mEngineSettingsButton_clicked()
{
QgsLabelEngineConfigDialog dlg( this );
dlg.exec();
}
void QgsDiagramProperties::apply()
{
int index = mDiagramTypeComboBox->currentIndex();
bool diagramsEnabled = ( index != 0 );
QgsDiagram *diagram = nullptr;
if ( diagramsEnabled && 0 == mDiagramAttributesTreeWidget->topLevelItemCount() )
{
QgisApp::instance()->messageBar()->pushMessage(
tr( "Diagrams: No attributes added." ),
tr( "You did not add any attributes to this diagram layer. Please specify the attributes to visualize on the diagrams or disable diagrams." ),
QgsMessageBar::WARNING );
}
#if 0
bool scaleAttributeValueOk = false;
// Check if a (usable) scale attribute value is inserted
mValueLineEdit->text().toDouble( &scaleAttributeValueOk );
if ( !mFixedSizeRadio->isChecked() && !scaleAttributeValueOk )
{
double maxVal = DBL_MIN;
QgsVectorDataProvider *provider = mLayer->dataProvider();
if ( provider )
{
if ( diagramType == DIAGRAM_NAME_HISTOGRAM )
{
// Find maximum value
for ( int i = 0; i < mDiagramAttributesTreeWidget->topLevelItemCount(); ++i )
{
QString fldName = mDiagramAttributesTreeWidget->topLevelItem( i )->data( 0, Qt::UserRole ).toString();
if ( fldName.count() >= 2 && fldName.at( 0 ) == '"' && fldName.at( fldName.count() - 1 ) == '"' )
fldName = fldName.mid( 1, fldName.count() - 2 ); // remove enclosing double quotes
int fld = provider->fieldNameIndex( fldName );
if ( fld != -1 )
{
bool ok = false;
double val = provider->maximumValue( fld ).toDouble( &ok );
if ( ok )
maxVal = std::max( maxVal, val );
}
}
}
else
{
maxVal = provider->maximumValue( mSizeAttributeComboBox->currentData().toInt() ).toDouble();
}
}
if ( diagramsEnabled && maxVal != DBL_MIN )
{
QgisApp::instance()->messageBar()->pushMessage(
tr( "Interpolation value" ),
tr( "You did not specify an interpolation value. A default value of %1 has been set." ).arg( QString::number( maxVal ) ),
QgsMessageBar::INFO,
5 );
mMaxValueSpinBox->setValue( maxVal );
}
}
#endif
if ( mDiagramType == DIAGRAM_NAME_TEXT )
{
diagram = new QgsTextDiagram();
}
else if ( mDiagramType == DIAGRAM_NAME_PIE )
{
diagram = new QgsPieDiagram();
}
else // if ( diagramType == DIAGRAM_NAME_HISTOGRAM )
{
diagram = new QgsHistogramDiagram();
}
QgsDiagramSettings ds;
ds.enabled = ( mDiagramTypeComboBox->currentIndex() != 0 );
ds.font = mDiagramFontButton->currentFont();
ds.opacity = mOpacityWidget->opacity();
QList<QColor> categoryColors;
QList<QString> categoryAttributes;
QList<QString> categoryLabels;
categoryColors.reserve( mDiagramAttributesTreeWidget->topLevelItemCount() );
categoryAttributes.reserve( mDiagramAttributesTreeWidget->topLevelItemCount() );
categoryLabels.reserve( mDiagramAttributesTreeWidget->topLevelItemCount() );
for ( int i = 0; i < mDiagramAttributesTreeWidget->topLevelItemCount(); ++i )
{
QColor color = mDiagramAttributesTreeWidget->topLevelItem( i )->background( 1 ).color();
color.setAlphaF( ds.opacity );
categoryColors.append( color );
categoryAttributes.append( mDiagramAttributesTreeWidget->topLevelItem( i )->data( 0, RoleAttributeExpression ).toString() );
categoryLabels.append( mDiagramAttributesTreeWidget->topLevelItem( i )->text( 2 ) );
}
ds.categoryColors = categoryColors;
ds.categoryAttributes = categoryAttributes;
ds.categoryLabels = categoryLabels;
ds.size = QSizeF( mDiagramSizeSpinBox->value(), mDiagramSizeSpinBox->value() );
ds.sizeType = mDiagramUnitComboBox->unit();
ds.sizeScale = mDiagramUnitComboBox->getMapUnitScale();
ds.lineSizeUnit = mDiagramLineUnitComboBox->unit();
ds.lineSizeScale = mDiagramLineUnitComboBox->getMapUnitScale();
ds.labelPlacementMethod = static_cast<QgsDiagramSettings::LabelPlacementMethod>( mLabelPlacementComboBox->currentData().toInt() );
ds.scaleByArea = mScaleDependencyComboBox->currentData().toBool();
if ( mIncreaseSmallDiagramsCheck->isChecked() )
{
ds.minimumSize = mIncreaseMinimumSizeSpinBox->value();
}
else
{
ds.minimumSize = 0;
}
ds.backgroundColor = mBackgroundColorButton->color();
ds.penColor = mDiagramPenColorButton->color();
ds.penWidth = mPenWidthSpinBox->value();
ds.minimumScale = mScaleRangeWidget->minimumScale();
ds.maximumScale = mScaleRangeWidget->maximumScale();
ds.scaleBasedVisibility = mScaleVisibilityGroupBox->isChecked();
// Diagram angle offset (pie)
ds.rotationOffset = mAngleOffsetComboBox->currentData().toInt();
// Diagram orientation (histogram)
ds.diagramOrientation = static_cast<QgsDiagramSettings::DiagramOrientation>( mOrientationButtonGroup->checkedButton()->property( "direction" ).toInt() );
ds.barWidth = mBarWidthSpinBox->value();
QgsDiagramRenderer *renderer = nullptr;
if ( mFixedSizeRadio->isChecked() )
{
QgsSingleCategoryDiagramRenderer *dr = new QgsSingleCategoryDiagramRenderer();
dr->setDiagramSettings( ds );
renderer = dr;
}
else
{
QgsLinearlyInterpolatedDiagramRenderer *dr = new QgsLinearlyInterpolatedDiagramRenderer();
dr->setLowerValue( 0.0 );
dr->setLowerSize( QSizeF( 0.0, 0.0 ) );
dr->setUpperValue( mMaxValueSpinBox->value() );
dr->setUpperSize( QSizeF( mSizeSpinBox->value(), mSizeSpinBox->value() ) );
bool isExpression;
QString sizeFieldNameOrExp = mSizeFieldExpressionWidget->currentField( &isExpression );
dr->setClassificationAttributeIsExpression( isExpression );
if ( isExpression )
{
dr->setClassificationAttributeExpression( sizeFieldNameOrExp );
}
else
{
dr->setClassificationField( sizeFieldNameOrExp );
}
dr->setDiagramSettings( ds );
dr->setDataDefinedSizeLegend( mSizeLegend ? new QgsDataDefinedSizeLegend( *mSizeLegend ) : nullptr );
renderer = dr;
}
renderer->setDiagram( diagram );
renderer->setAttributeLegend( mCheckBoxAttributeLegend->isChecked() );
mLayer->setDiagramRenderer( renderer );
QgsDiagramLayerSettings dls;
dls.setDataDefinedProperties( mDataDefinedProperties );
dls.setDistance( mDiagramDistanceSpinBox->value() );
dls.setPriority( mPrioritySlider->value() );
dls.setZIndex( mZIndexSpinBox->value() );
dls.setShowAllDiagrams( mShowAllCheckBox->isChecked() );
QWidget *curWdgt = stackedPlacement->currentWidget();
if ( ( curWdgt == pagePoint && radAroundPoint->isChecked() )
|| ( curWdgt == pagePolygon && radAroundCentroid->isChecked() ) )
{
dls.setPlacement( QgsDiagramLayerSettings::AroundPoint );
}
else if ( ( curWdgt == pagePoint && radOverPoint->isChecked() )
|| ( curWdgt == pagePolygon && radOverCentroid->isChecked() ) )
{
dls.setPlacement( QgsDiagramLayerSettings::OverPoint );
}
else if ( ( curWdgt == pageLine && radAroundLine->isChecked() )
|| ( curWdgt == pagePolygon && radPolygonPerimeter->isChecked() ) )
{
dls.setPlacement( QgsDiagramLayerSettings::Line );
}
else if ( ( curWdgt == pageLine && radOverLine->isChecked() )
|| ( curWdgt == pagePolygon && radInsidePolygon->isChecked() ) )
{
dls.setPlacement( QgsDiagramLayerSettings::Horizontal );
}
else
{
qFatal( "Invalid settings" );
}
QgsDiagramLayerSettings::LinePlacementFlags flags = 0;
if ( chkLineAbove->isChecked() )
flags |= QgsDiagramLayerSettings::AboveLine;
if ( chkLineBelow->isChecked() )
flags |= QgsDiagramLayerSettings::BelowLine;
if ( chkLineOn->isChecked() )
flags |= QgsDiagramLayerSettings::OnLine;
if ( ! chkLineOrientationDependent->isChecked() )
flags |= QgsDiagramLayerSettings::MapOrientation;
dls.setLinePlacementFlags( flags );
mLayer->setDiagramLayerSettings( dls );
// refresh
QgsProject::instance()->setDirty( true );
mLayer->triggerRepaint();
}
QString QgsDiagramProperties::showExpressionBuilder( const QString &initialExpression )
{
QgsExpressionContext context;
context << QgsExpressionContextUtils::globalScope()
<< QgsExpressionContextUtils::projectScope( QgsProject::instance() )
<< QgsExpressionContextUtils::atlasScope( nullptr )
<< QgsExpressionContextUtils::mapSettingsScope( mMapCanvas->mapSettings() )
<< QgsExpressionContextUtils::layerScope( mLayer );
QgsExpressionBuilderDialog dlg( mLayer, initialExpression, this, QStringLiteral( "generic" ), context );
dlg.setWindowTitle( tr( "Expression Based Attribute" ) );
QgsDistanceArea myDa;
myDa.setSourceCrs( mLayer->crs() );
myDa.setEllipsoid( QgsProject::instance()->ellipsoid() );
dlg.setGeomCalculator( myDa );
if ( dlg.exec() == QDialog::Accepted )
{
return dlg.expressionText();
}
else
{
return QString();
}
}
void QgsDiagramProperties::showAddAttributeExpressionDialog()
{
QString expression;
QList<QTreeWidgetItem *> selections = mAttributesTreeWidget->selectedItems();
if ( !selections.empty() )
{
expression = selections[0]->text( 0 );
}
QString newExpression = showExpressionBuilder( expression );
//Only add the expression if the user has entered some text.
if ( !newExpression.isEmpty() )
{
QTreeWidgetItem *newItem = new QTreeWidgetItem( mDiagramAttributesTreeWidget );
newItem->setText( 0, newExpression );
newItem->setText( 2, newExpression );
newItem->setData( 0, RoleAttributeExpression, newExpression );
newItem->setFlags( ( newItem->flags() | Qt::ItemIsEditable ) & ~Qt::ItemIsDropEnabled );
//set initial color for diagram category
int red = 1 + ( int )( 255.0 * qrand() / ( RAND_MAX + 1.0 ) );
int green = 1 + ( int )( 255.0 * qrand() / ( RAND_MAX + 1.0 ) );
int blue = 1 + ( int )( 255.0 * qrand() / ( RAND_MAX + 1.0 ) );
QColor randomColor( red, green, blue );
newItem->setBackground( 1, QBrush( randomColor ) );
mDiagramAttributesTreeWidget->addTopLevelItem( newItem );
}
activateWindow(); // set focus back parent
}
void QgsDiagramProperties::on_mDiagramStackedWidget_currentChanged( int index )
{
mDiagramOptionsListWidget->blockSignals( true );
mDiagramOptionsListWidget->setCurrentRow( index );
mDiagramOptionsListWidget->blockSignals( false );
}
void QgsDiagramProperties::updatePlacementWidgets()
{
QWidget *curWdgt = stackedPlacement->currentWidget();
if ( ( curWdgt == pagePoint && radAroundPoint->isChecked() )
|| ( curWdgt == pageLine && radAroundLine->isChecked() )
|| ( curWdgt == pagePolygon && radAroundCentroid->isChecked() ) )
{
mDiagramDistanceLabel->setEnabled( true );
mDiagramDistanceSpinBox->setEnabled( true );
mDistanceDDBtn->setEnabled( true );
}
else
{
mDiagramDistanceLabel->setEnabled( false );
mDiagramDistanceSpinBox->setEnabled( false );
mDistanceDDBtn->setEnabled( false );