File indexing completed on 2024-05-05 03:50:41

 // SPDX-License-Identifier: LGPL-2.1-or-later
 //
 // SPDX-FileCopyrightText: 2008 Torsten Rahn <tackat@kde.org>
 // SPDX-FileCopyrightText: 2010 Dennis Nienhüser <nienhueser@kde.org>
 //
 
 #include "CompassFloatItem.h"
 #include "ui_CompassConfigWidget.h"
 
 #include "MarbleDebug.h"
 #include "MarbleDirs.h"
 #include "ViewportParams.h"
 
 #include <QRect>
 #include <QColor>
 #include <QPainter>
 #include <QPainterPath>
 #include <QPushButton>
 #include <QSvgRenderer>
 
 namespace Marble
 {
 
 CompassFloatItem::CompassFloatItem()
     : AbstractFloatItem( nullptr ),
       m_svgobj( nullptr ),
       m_polarity( 0 ),
       m_themeIndex( 0 ),
       m_configDialog( nullptr ),
       m_uiConfigWidget( nullptr )
 {
 }
 
 CompassFloatItem::CompassFloatItem( const MarbleModel *marbleModel )
     : AbstractFloatItem( marbleModel, QPointF( -1.0, 10.0 ), QSizeF( 75.0, 75.0 ) ),
       m_isInitialized( false ),
       m_svgobj( nullptr ),
       m_compass(),
       m_polarity( 0 ),
       m_themeIndex( 0 ),
       m_configDialog( nullptr ),
       m_uiConfigWidget( nullptr )
 {
 }
 
 CompassFloatItem::~CompassFloatItem ()
 {
     delete m_svgobj;
 }
 
 QStringList CompassFloatItem::backendTypes() const
 {
     return QStringList(QStringLiteral("compass"));
 }
 
 QString CompassFloatItem::name() const
 {
     return tr( "Compass" );
 }
 
 QString CompassFloatItem::guiString() const
 {
     return tr( "&Compass" );
 }
 
 QString CompassFloatItem::nameId() const
 {
     return QStringLiteral("compass");
 }
 
 QString CompassFloatItem::version() const
 {
     return QStringLiteral("1.0");
 }
 
 QString CompassFloatItem::description() const
 {
     return tr( "This is a float item that provides a compass." );
 }
 
 QString CompassFloatItem::copyrightYears() const
 {
     return QStringLiteral("2009, 2010");
 }
 
 QVector<PluginAuthor> CompassFloatItem::pluginAuthors() const
 {
     return QVector<PluginAuthor>()
             << PluginAuthor(QStringLiteral("Dennis Nienhüser"), QStringLiteral("nienhueser@kde.org"))
             << PluginAuthor(QStringLiteral("Torsten Rahn"), QStringLiteral("tackat@kde.org"));
 }
 
 QIcon CompassFloatItem::icon() const
 {
     return QIcon(QStringLiteral(":/icons/compass.png"));
 }
 
 void CompassFloatItem::initialize()
 {
     readSettings();
     m_isInitialized = true;
 }
 
 bool CompassFloatItem::isInitialized() const
 {
     return m_isInitialized;
 }
 
 QPainterPath CompassFloatItem::backgroundShape() const
 {
     QRectF contentRect = this->contentRect();
     QPainterPath path;
     int fontheight = QFontMetrics( font() ).ascent();
     int compassLength = static_cast<int>( contentRect.height() ) - 5 - fontheight;
 
     path.addEllipse( QRectF( QPointF( marginLeft() + padding() + ( contentRect.width() - compassLength ) / 2,
                                       marginTop() + padding() + 5 + fontheight ),
                              QSize( compassLength, compassLength ) ).toRect() );
     return path;
 }
 
 void CompassFloatItem::setProjection( const ViewportParams *viewport )
 {
     // figure out the polarity ...
     if ( m_polarity != viewport->polarity() ) {
         m_polarity = viewport->polarity();
         update();
     }
 
     AbstractFloatItem::setProjection( viewport );
 }
 
 void CompassFloatItem::paintContent( QPainter *painter )
 {
     painter->save();
 
     QRectF compassRect( contentRect() );
 
     const QString dirstr =
         (m_polarity == +1) ? tr("N") :
         (m_polarity == -1) ? tr("S") :
         /*else*/             QString();
 
     int fontheight = QFontMetrics( font() ).ascent();
     int fontwidth = QFontMetrics( font() ).boundingRect( dirstr ).width();
 
     QPen outlinepen( background().color() );
     outlinepen.setWidth( 2 );
     QBrush outlinebrush( pen().color() );
 
     QPainterPath   outlinepath;
     const QPointF  baseline( 0.5 * (qreal)( compassRect.width() - fontwidth ),
                              (qreal)(fontheight) + 2.0 );
 
     outlinepath.addText( baseline, font(), dirstr );
 
     painter->setPen( outlinepen );
     painter->setBrush( outlinebrush );
     painter->drawPath( outlinepath );
 
     painter->setPen( Qt::NoPen );
     painter->drawPath( outlinepath );
 
     int compassLength = static_cast<int>( compassRect.height() ) - 5 - fontheight;
         
     QSize compassSize( compassLength, compassLength ); 
 
     // Rerender compass pixmap if the size has changed
     if ( m_compass.isNull() || m_compass.size() != compassSize ) {
         m_compass = QPixmap( compassSize );
         m_compass.fill( Qt::transparent );
         QPainter mapPainter( &m_compass );
         mapPainter.setViewport( m_compass.rect() );
         m_svgobj->render( &mapPainter ); 
     }
     painter->drawPixmap( QPoint( static_cast<int>( compassRect.width() - compassLength ) / 2, fontheight + 5 ), m_compass );
 
     painter->restore();
 }
 
 QDialog *CompassFloatItem::configDialog()
 {
     if ( !m_configDialog ) {
         m_configDialog = new QDialog();
         m_uiConfigWidget = new Ui::CompassConfigWidget;
         m_uiConfigWidget->setupUi( m_configDialog );
         readSettings();
         connect( m_uiConfigWidget->m_buttonBox, SIGNAL(accepted()),
                 SLOT(writeSettings()) );
         connect( m_uiConfigWidget->m_buttonBox, SIGNAL(rejected()),
                 SLOT(readSettings()) );
         QPushButton *applyButton = m_uiConfigWidget->m_buttonBox->button( QDialogButtonBox::Apply );
         connect( applyButton, SIGNAL(clicked()),
                  this,        SLOT(writeSettings()) );
     }
 
     return m_configDialog;
 }
 
 QHash<QString,QVariant> CompassFloatItem::settings() const
 {
     QHash<QString, QVariant> result = AbstractFloatItem::settings();
 
     result.insert(QStringLiteral("theme"), m_themeIndex);
 
     return result;
 }
 
 void CompassFloatItem::setSettings( const QHash<QString,QVariant> &settings )
 {
     AbstractFloatItem::setSettings( settings );
 
     m_themeIndex = settings.value(QStringLiteral("theme"), 0).toInt();
 
     readSettings();
 }
 
 void CompassFloatItem::readSettings()
 {
     if ( m_uiConfigWidget && m_themeIndex >= 0 && m_themeIndex < m_uiConfigWidget->m_themeList->count() ) {
         m_uiConfigWidget->m_themeList->setCurrentRow( m_themeIndex );
     }
 
     QString theme = QStringLiteral(":/compass.svg");
     switch( m_themeIndex ) {
     case 1:
         theme = QStringLiteral(":/compass-arrows.svg");
         break;
     case 2:
         theme = QStringLiteral(":/compass-atom.svg");
         break;
     case 3:
         theme = QStringLiteral(":/compass-magnet.svg");
         break;
     }
 
     delete m_svgobj;
     m_svgobj = new QSvgRenderer( theme, this );
     m_compass = QPixmap();
 }
 
 void CompassFloatItem::writeSettings()
 {
     if ( m_uiConfigWidget ) {
         m_themeIndex = m_uiConfigWidget->m_themeList->currentRow();
     }
     readSettings();
     update();
     emit settingsChanged( nameId() );
 }
 
 }
 
 #include "moc_CompassFloatItem.cpp"