LayerManager.h

// SPDX-License-Identifier: LGPL-2.1-or-later
//
// SPDX-FileCopyrightText: 2006-2008 Torsten Rahn <tackat@kde.org>
// SPDX-FileCopyrightText: 2011 Bernahrd Beschow <bbeschow@cs.tu-berlin.de>
//
 
#ifndef MARBLE_LAYERMANAGER_H
#define MARBLE_LAYERMANAGER_H
 
// Qt
#include <QList>
#include <QObject>
#include <QRegion>
 
class QPoint;
class QString;
 
namespace Marble
{
 
class AbstractDataPlugin;
class AbstractDataPluginItem;
class GeoPainter;
class ViewportParams;
class RenderPlugin;
class RenderState;
class LayerInterface;
 
/**
 * @short Handles rendering of all active layers in the correct order
 *
 */
 
class LayerManager : public QObject
{
    Q_OBJECT
 
 public:
    explicit LayerManager(QObject *parent = nullptr);
    ~LayerManager() override;
 
    void renderLayers( GeoPainter *painter, ViewportParams *viewport );
 
    bool showBackground() const;
 
    bool showRuntimeTrace() const;
 
    void addRenderPlugin(RenderPlugin *renderPlugin);
 
    /**
     * @brief Returns a list of all DataPlugins on the layer
     * @return the list of DataPlugins
     */
    QList<AbstractDataPlugin *> dataPlugins()  const;
    
    /**
     * @brief Returns all items of dataPlugins on the position curpos 
     */
    QList<AbstractDataPluginItem *> whichItemAt( const QPoint& curpos ) const;
 
    /**
     * @brief Add a layer to be included in rendering.
     */
    void addLayer(LayerInterface *layer);
 
    /**
     * @brief Remove a layer from being included in rendering.
     */
    void removeLayer(LayerInterface *layer);
 
    QList<LayerInterface *> internalLayers() const;
 
    RenderState renderState() const;
 
 Q_SIGNALS:
    /**
     * @brief Signal that a render item has been initialized
     */
    void renderPluginInitialized( RenderPlugin *renderPlugin );
 
    /**
     * This signal is emitted when the settings of a plugin changed.
     */
    void pluginSettingsChanged();
 
    /**
     * This signal is emitted when the repaint of the view was requested by a plugin.
     * If available with the @p dirtyRegion which is the region the view will change in.
     * If dirtyRegion.isEmpty() returns true, the whole viewport has to be repainted.
     */
    void repaintNeeded( const QRegion & dirtyRegion = QRegion() );
 
    void visibilityChanged( const QString &nameId, bool visible );
 
 public Q_SLOTS:
    void setShowBackground( bool show );
 
    void setShowRuntimeTrace( bool show );
 
 private:
    Q_PRIVATE_SLOT( d, void updateVisibility( bool, const QString & ) )
 
 private:
    Q_DISABLE_COPY( LayerManager )
 
    class Private;
    friend class Private;
    Private  * const d;
};
 
}
 
#endif