qgstemporalcontrollerwidget.h

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/***************************************************************************
                         qgstemporalcontrollerwidget.h
                         ---------------
    begin                : February 2020
    copyright            : (C) 2020 by Samweli Mwakisambwe
    email                : samweli at kartoza dot com
 ***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSTEMPORALCONTROLLERWIDGET_H
#define QGSTEMPORALCONTROLLERWIDGET_H
 
#include "ui_qgstemporalcontrollerwidgetbase.h"
 
#include "qgis_gui.h"
#include "qgsrange.h"
#include "qgstemporalnavigationobject.h"
 
class QgsMapLayer;
class QgsMapLayerModel;
class QgsTemporalNavigationObject;
class QgsTemporalController;
class QgsInterval;
 
class GUI_EXPORT QgsTemporalControllerWidget : public QgsPanelWidget, private Ui::QgsTemporalControllerWidgetBase
{
    Q_OBJECT
  public:
 
    QgsTemporalControllerWidget( QWidget *parent SIP_TRANSFERTHIS = nullptr );
 
    QgsTemporalNavigationObject *temporalController();
 
    bool applySizeConstraintsToStack() const override;
 
#ifndef SIP_RUN
 
  signals:
 
    void exportAnimation();
 
#endif
 
  protected:
 
    void keyPressEvent( QKeyEvent *e ) override;
 
  private:
 
    QgsTemporalNavigationObject *mNavigationObject = nullptr;
 
    int mBlockSettingUpdates = 0;
    int mBlockFrameDurationUpdates = 0;
 
    bool mHasTemporalLayersLoaded = false;
 
    void togglePlayForward();
    void togglePlayBackward();
    void togglePause();
    bool mPlayingForward = true;
 
    std::unique_ptr< QMenu > mRangeMenu;
    QAction *mRangeSetToProjectAction = nullptr;
    QAction *mRangeSetToAllLayersAction = nullptr;
 
    std::unique_ptr< QMenu > mRangeLayersSubMenu;
    QgsMapLayerModel *mMapLayerModel = nullptr;
 
    void firstTemporalLayerLoaded( QgsMapLayer *layer );
    void setTimeStep( const QgsInterval &timeStep );
 
    void updateTimeStepInputs( const QgsInterval &timeStep );
 
  private slots:
 
    void timeSlider_valueChanged( int value );
 
    void settings_clicked();
 
    void setDates( const QgsDateTimeRange &range );
 
    void setDatesToAllLayers();
 
    void setDatesToProjectTime();
 
    void updateSlider( const QgsDateTimeRange &range );
 
    void updateRangeLabel( const QgsDateTimeRange &range );
 
    void updateTemporalExtent();
 
    void updateFrameDuration();
 
    void setWidgetStateFromProject();
 
    void mNavigationOff_clicked();
    void mNavigationFixedRange_clicked();
    void mNavigationAnimated_clicked();
    void setWidgetStateFromNavigationMode( const QgsTemporalNavigationObject::NavigationMode mode );
 
    void onLayersAdded( const QList<QgsMapLayer *> &layers );
    void onProjectCleared();
 
    void startEndDateTime_changed();
    void fixedRangeStartEndDateTime_changed();
 
    void saveRangeToProject();
 
    void aboutToShowRangeMenu();
 
    void mRangeSetToProjectAction_triggered();
    void mRangeSetToAllLayersAction_triggered();
};
 
#endif // QGSTEMPORALCONTROLLERWIDGET_H