File indexing completed on 2025-01-05 03:59:24

 // SPDX-License-Identifier: LGPL-2.1-or-later
 //
 // SPDX-FileCopyrightText: 2008 Torsten Rahn <tackat@kde.org>
 // SPDX-FileCopyrightText: 2010 Cezar Mocan <mocancezar@gmail.com>
 //
 
 #include "CrosshairsPlugin.h"
 
 #include <QRect>
 #include <QColor>
 #include <QPushButton>
 #include <QSvgRenderer>
 #include <QImageReader>
 
 #include <klocalizedstring.h>
 
 #include "ui_CrosshairsConfigWidget.h"
 #include "GeoPainter.h"
 #include "MarbleDirs.h"
 #include "ViewportParams.h"
 #include "digikam_debug.h"
 
 namespace Marble
 {
 
 CrosshairsPlugin::CrosshairsPlugin()
     : RenderPlugin( nullptr ),
       m_svgobj( nullptr ),
       m_themeIndex( 0 ),
       m_configDialog( nullptr ),
       m_uiConfigWidget( nullptr )
 {
 }
 
 CrosshairsPlugin::CrosshairsPlugin( const MarbleModel *marbleModel )
     : RenderPlugin( marbleModel ),
       m_isInitialized( false ),
       m_svgobj( nullptr ),
       m_themeIndex( 0 ),
       m_configDialog( nullptr ),
       m_uiConfigWidget( nullptr )
 {
 }
 
 CrosshairsPlugin::~CrosshairsPlugin ()
 {
     delete m_svgobj;
 }
 
 QStringList CrosshairsPlugin::backendTypes() const
 {
     return QStringList(QStringLiteral("crosshairs"));
 }
 
 QString CrosshairsPlugin::renderPolicy() const
 {
     return QStringLiteral("ALWAYS");
 }
 
 QStringList CrosshairsPlugin::renderPosition() const
 {
     return QStringList(QStringLiteral("FLOAT_ITEM")); // although this is not a float item we choose the position of one
 }
 
 RenderPlugin::RenderType CrosshairsPlugin::renderType() const
 {
     return RenderPlugin::TopLevelRenderType;
 }
 
 QString CrosshairsPlugin::name() const
 {
     return i18n( "Crosshairs" );
 }
 
 QString CrosshairsPlugin::guiString() const
 {
     return i18n( "Cross&hairs" );
 }
 
 QString CrosshairsPlugin::nameId() const
 {
     return QStringLiteral("crosshairs");
 }
 
 QString CrosshairsPlugin::version() const
 {
     return QStringLiteral("1.0");
 }
 
 QString CrosshairsPlugin::description() const
 {
     return i18n( "A plugin that shows crosshairs over the map." );
 }
 
 QString CrosshairsPlugin::copyrightYears() const
 {
     return QStringLiteral("2009, 2010");
 }
 
 QVector<PluginAuthor> CrosshairsPlugin::pluginAuthors() const
 {
     return QVector<PluginAuthor>()
             << PluginAuthor(QStringLiteral("Cezar Mocan"), QStringLiteral("cezarmocan@gmail.com"))
             << PluginAuthor(QStringLiteral("Torsten Rahn"), QStringLiteral("tackat@kde.org"));
 }
 
 QIcon CrosshairsPlugin::icon () const
 {
     return QIcon::fromTheme(QStringLiteral("crosshairs"));
 }
 
 void CrosshairsPlugin::initialize ()
 {
     readSettings();
     m_isInitialized = true;
 }
 
 bool CrosshairsPlugin::isInitialized () const
 {
     return m_isInitialized;
 }
 
 QDialog *CrosshairsPlugin::configDialog()
 {
     if ( !m_configDialog )
     {
         m_configDialog = new QDialog();
         m_uiConfigWidget = new Ui::CrosshairsConfigWidget;
         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> CrosshairsPlugin::settings() const
 {
     QHash<QString, QVariant> result = RenderPlugin::settings();
 
     result.insert(QStringLiteral("theme"), m_themeIndex);
 
     return result;
 }
 
 void CrosshairsPlugin::setSettings( const QHash<QString,QVariant> &settings )
 {
     RenderPlugin::setSettings( settings );
 
     m_themeIndex = settings.value(QStringLiteral("theme"), 0).toInt();
 
     readSettings();
 }
 
 void CrosshairsPlugin::readSettings()
 {
     if ( m_uiConfigWidget && (m_themeIndex >= 0) && (m_themeIndex < m_uiConfigWidget->m_themeList->count()) )
     {
         m_uiConfigWidget->m_themeList->setCurrentRow( m_themeIndex );
     }
 
     m_theme = QStringLiteral(":/crosshairs-darkened.png");
 
     switch( m_themeIndex )
     {
         case 1:
             m_theme = QStringLiteral(":/crosshairs-gun1.svg");
             break;
         case 2:
             m_theme = QStringLiteral(":/crosshairs-gun2.svg");
             break;
         case 3:
             m_theme = QStringLiteral(":/crosshairs-circled.svg");
             break;
         case 4:
             m_theme = QStringLiteral(":/crosshairs-german.svg");
             break;
     }
 
     if (QImageReader::imageFormat(m_theme) == QByteArray("svg"))
     {
         delete m_svgobj;
         m_svgobj = new QSvgRenderer( m_theme, this );
     }
 
     m_crosshairs = QPixmap();
 }
 
 void CrosshairsPlugin::writeSettings()
 {
     if ( m_uiConfigWidget )
     {
         m_themeIndex = m_uiConfigWidget->m_themeList->currentRow();
     }
 
     readSettings();
 
     Q_EMIT settingsChanged( nameId() );
 }
 
 bool CrosshairsPlugin::render( GeoPainter *painter, ViewportParams *viewport,
                                const QString& renderPos,
                                GeoSceneLayer * layer )
 {
     Q_UNUSED( renderPos )
     Q_UNUSED( layer )
 
     if ( m_crosshairs.isNull() )
     {
         if (QImageReader::imageFormat(m_theme) == QByteArray("svg"))
         {
             painter->setRenderHint( QPainter::Antialiasing, true );
             m_crosshairs = QPixmap( QSize( 21, 21 ) );
             m_crosshairs.fill( Qt::transparent );
 
             QPainter mapPainter( &m_crosshairs );
             m_svgobj->render( &mapPainter );
         }
         else
         {
             m_crosshairs.load( m_theme );
         }
     }
 
     const int width  = m_crosshairs.width();
     const int height = m_crosshairs.height();
 
     int posX;
     int posY;
 
     GeoDataCoordinates const focusPoint  = viewport->focusPoint();
     GeoDataCoordinates const centerPoint = GeoDataCoordinates( viewport->centerLongitude(), viewport->centerLatitude() );
 
     if ( focusPoint == centerPoint )
     {
         // Focus point is in the middle of the screen. Special casing this avoids jittering.
 
         const QSize viewPortSize = viewport->size();
         posX = (viewPortSize.width()  - width)  / 2;
         posY = (viewPortSize.height() - height) / 2;
     }
     else
     {
         qreal centerX = 0.0;
         qreal centerY = 0.0;
         viewport->screenCoordinates( focusPoint, centerX, centerY );
         posX = qRound(centerX - width / 2.0);
         posY = qRound(centerY - height / 2.0);
     }
 
     painter->drawPixmap(posX, posY, m_crosshairs );
 
     return true;
 }
 
 } // namespace Marble
 
 #include "moc_CrosshairsPlugin.cpp"