qgseditorconfigwidget.h

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/***************************************************************************
    qgseditorconfigwidget.h
     --------------------------------------
    Date                 : 24.4.2013
    Copyright            : (C) 2013 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.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef QGSEDITORCONFIGWIDGET_H
#define QGSEDITORCONFIGWIDGET_H

#include <QWidget>
#include "qgis_sip.h"
#include "qgis_gui.h"

#include "qgseditorwidgetwrapper.h"
#include "qgsexpressioncontextgenerator.h"

class QgsVectorLayer;
class QgsPropertyOverrideButton;

class GUI_EXPORT QgsEditorConfigWidget : public QWidget, public QgsExpressionContextGenerator
{
    Q_OBJECT
  public:

    explicit QgsEditorConfigWidget( QgsVectorLayer *vl, int fieldIdx, QWidget *parent SIP_TRANSFERTHIS );

    virtual QVariantMap config() = 0;

    virtual void setConfig( const QVariantMap &config ) = 0;

    int field();

    QgsVectorLayer *layer();

    QgsExpressionContext createExpressionContext() const override;

  signals:

    void changed();

  protected:

    void initializeDataDefinedButton( QgsPropertyOverrideButton *button, QgsWidgetWrapper::Property key );

    void updateDataDefinedButtons();

    void updateDataDefinedButton( QgsPropertyOverrideButton *button );

    QgsPropertyCollection mPropertyCollection;

  private slots:

    void updateProperty();

  private:
    QgsVectorLayer *mLayer = nullptr;
    int mField;
};

#endif // QGSEDITORCONFIGWIDGET_H