qgsattributeformeditorwidget.h

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/***************************************************************************
    qgsattributeformeditorwidget.h
     -----------------------------
    Date                 : March 2016
    Copyright            : (C) 2016 Nyall Dawson
    Email                : nyall dot dawson at gmail 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 QGSATTRIBUTEFORMEDITORWIDGET_H
#define QGSATTRIBUTEFORMEDITORWIDGET_H
 
#include "qgis_gui.h"
#include "qgis_sip.h"
#include "qgsattributeformwidget.h"
#include "qgseditorwidgetwrapper.h"
 
class QgsEditorWidgetWrapper;
class QgsMultiEditToolButton;
class QgsSearchWidgetToolButton;
class QgsVectorLayer;
class QStackedWidget;
class QgsAttributeEditorContext;
class QLabel;
class QgsAggregateToolButton;
 
class QToolButton;

class GUI_EXPORT QgsAttributeFormEditorWidget : public QgsAttributeFormWidget
{
    Q_OBJECT
 
  public:
    explicit QgsAttributeFormEditorWidget( QgsEditorWidgetWrapper *editorWidget, const QString &widgetType, QgsAttributeForm *form SIP_TRANSFERTHIS );
 
    ~QgsAttributeFormEditorWidget() override;
 
    void createSearchWidgetWrappers( const QgsAttributeEditorContext &context = QgsAttributeEditorContext() ) override;

    void initialize( const QVariant &initialValue, bool mixedValues = false, const QVariantList &additionalFieldValues = QVariantList() );

    bool hasChanged() const { return mIsChanged; }

    QVariant currentValue() const;

    void setConstraintStatus( const QString &constraint, const QString &description, const QString &err, QgsEditorWidgetWrapper::ConstraintResult result );

    void setConstraintResultVisible( bool editable );

    void setRememberLastValue( bool remember );

    QgsEditorWidgetWrapper *editorWidget() const;
 
  public slots:

    void setIsMixed( bool mixed );

    void changesCommitted();
 
  signals:

    Q_DECL_DEPRECATED void valueChanged( const QVariant &value );

    void valuesChanged( const QVariant &value, const QVariantList &additionalFieldValues );

    void rememberLastValueChanged( int index, bool remember );
 
  private slots:

    void editorWidgetValuesChanged( const QVariant &value, const QVariantList &additionalFieldValues );

    void resetValue();

    void setFieldTriggered();
 
    void onAggregateChanged();
 
  private:
    QString mWidgetType;
    QgsEditorWidgetWrapper *mEditorWidget = nullptr;
    QgsAttributeForm *mForm = nullptr;
    QLabel *mConstraintResultLabel = nullptr;
 
    QToolButton *mRememberLastValueButton = nullptr;
    QgsMultiEditToolButton *mMultiEditButton = nullptr;
    QgsAggregateToolButton *mAggregateButton = nullptr;
    QVariant mPreviousValue;
    QVariantList mPreviousAdditionalValues;
    bool mBlockValueUpdate = false;
    bool mIsMixed = false;
    bool mIsChanged = false;
    bool mIsConstraintResultVisible = false;
 
    void updateWidgets() final;
    void updateRememberWidget();
 
    friend class TestQgsAttributeForm;
};
 
#endif // QGSATTRIBUTEFORMEDITORWIDGET_H