qgsmaplayerstylemanagerwidget.h

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/***************************************************************************
    qgsmaplayerstylemanagerwidget.h
    ---------------------
    begin                : June 2016
    copyright            : (C) 2016 by Nathan Woodrow
    email                : woodrow dot nathan 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 QGSMAPLAYERSTYLEMANAGERWIDGET_H
#define QGSMAPLAYERSTYLEMANAGERWIDGET_H
 
#include "qgis_gui.h"
#include "qgsmaplayerconfigwidget.h"
 
#include <QAbstractListModel>
#include <QListView>
#include <QWidget>
 
class QgsMapLayer;
class QgsMapCanvas;
 
class QStandardItem;

class GUI_EXPORT QgsMapLayerStyleModel : public QAbstractListModel
{
    Q_OBJECT
 
  public:
    QgsMapLayerStyleModel( QgsMapLayerStyleManager *manager, QObject *parent SIP_TRANSFERTHIS = nullptr );
 
    int rowCount( const QModelIndex &parent = QModelIndex() ) const override;
    QVariant data( const QModelIndex &index, int role = Qt::DisplayRole ) const override;
    bool setData( const QModelIndex &index, const QVariant &value, int role = Qt::EditRole ) override;
    Qt::ItemFlags flags( const QModelIndex &index ) const override;

    QModelIndex indexForName( const QString &name ) const;
 
  private slots:
 
    void styleAdded( const QString &name );
    void styleRemoved( const QString &name );
    void styleRenamed( const QString &oldname, const QString &newname );
 
  private:
    QPointer< QgsMapLayerStyleManager > mManager;
    QStringList mStyleNames;
};

class GUI_EXPORT QgsMapLayerStyleManagerWidget : public QgsMapLayerConfigWidget
{
    Q_OBJECT
  public:
    QgsMapLayerStyleManagerWidget( QgsMapLayer *layer, QgsMapCanvas *canvas, QWidget *parent = nullptr );
 
    void syncToLayer( QgsMapLayer *layer ) final;
 
  public slots:
    void apply() override {}
 
  private slots:
    void selectionChanged( const QItemSelection &selected, const QItemSelection &deselected );
    void currentStyleChanged( const QString &name );
    void addStyle();
    void removeStyle();
    void saveAsDefault();
    void loadDefault();
    void saveStyle();
    void loadStyle();
 
  private:
    QgsMapLayerStyleModel *mModel = nullptr;
    QListView *mStyleList = nullptr;
};
 
#endif // QGSMAPLAYERSTYLEMANAGERWIDGET_H