qgsvectorlayerundopassthroughcommand.h

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/***************************************************************************
    qgsvectorlayerundopassthroughcommand.h
    ---------------------
    begin                : June 2017
    copyright            : (C) 2017 by Vincent Mora
    email                : vincent dot mora at osalndia 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 QGSVECTORLAYERUNDOPASSTHROUGHCOMMAND_H
#define QGSVECTORLAYERUNDOPASSTHROUGHCOMMAND_H
 
#include "qgsvectorlayereditbuffer.h"
#include "qgsvectorlayerundocommand.h"
 
class QgsTransaction;

 
 
class CORE_EXPORT QgsVectorLayerUndoPassthroughCommand : public QgsVectorLayerUndoCommand
{
  public:
    QgsVectorLayerUndoPassthroughCommand( QgsVectorLayerEditBuffer *buffer, const QString &text, bool autocreate = true );

    bool hasError() const { return mHasError; }
 
  protected:
    bool rollBackToSavePoint();

    bool setSavePoint( const QString &savePointId = QString() );

    void setError();

    void setErrorMessage( const QString &errorMessage );

    QString errorMessage() const;
 
  private:
    QString mError;
    QString mSavePointId;
    bool mHasError;
    bool mRecreateSavePoint;
};

 
class CORE_EXPORT QgsVectorLayerUndoPassthroughCommandAddFeatures : public QgsVectorLayerUndoPassthroughCommand
{
  public:
    QgsVectorLayerUndoPassthroughCommandAddFeatures( QgsVectorLayerEditBuffer *buffer SIP_TRANSFER, QgsFeatureList &features );
 
    void undo() override;
    void redo() override;

    QgsFeatureList features() const { return mFeatures; }
 
  private:
    QgsFeatureList mFeatures;
    QgsFeatureList mInitialFeatures;
};
 

 
class CORE_EXPORT QgsVectorLayerUndoPassthroughCommandDeleteFeatures : public QgsVectorLayerUndoPassthroughCommand
{
  public:
    QgsVectorLayerUndoPassthroughCommandDeleteFeatures( QgsVectorLayerEditBuffer *buffer SIP_TRANSFER, const QgsFeatureIds &fids );
 
    void undo() override;
    void redo() override;
 
  private:
    const QgsFeatureIds mFids;
    // Keeps track of the deleted features that belong to the added pool
    QgsFeatureMap mDeletedNewFeatures;
};

 
class CORE_EXPORT QgsVectorLayerUndoPassthroughCommandChangeGeometry : public QgsVectorLayerUndoPassthroughCommand
{
  public:
    QgsVectorLayerUndoPassthroughCommandChangeGeometry( QgsVectorLayerEditBuffer *buffer SIP_TRANSFER, QgsFeatureId fid, const QgsGeometry &geom );
 
    void undo() override;
    void redo() override;
 
    int id() const override { return 1; }
    bool mergeWith( const QUndoCommand *other ) override;
 
  private:
    QgsFeatureId mFid;
    mutable QgsGeometry mNewGeom;
    QgsGeometry mOldGeom;
    bool mFirstChange = true;
};

 
class CORE_EXPORT QgsVectorLayerUndoPassthroughCommandChangeAttribute : public QgsVectorLayerUndoPassthroughCommand
{
  public:
    QgsVectorLayerUndoPassthroughCommandChangeAttribute( QgsVectorLayerEditBuffer *buffer SIP_TRANSFER, QgsFeatureId fid, int field, const QVariant &newValue );
 
    void undo() override;
    void redo() override;
 
  private:
    QgsFeatureId mFid;
    const int mFieldIndex;
    const QVariant mNewValue;
    QVariant mOldValue;
    bool mFirstChange = true;
};

 
class CORE_EXPORT QgsVectorLayerUndoPassthroughCommandChangeAttributes : public QgsVectorLayerUndoPassthroughCommand
{
  public:
    QgsVectorLayerUndoPassthroughCommandChangeAttributes(
      QgsVectorLayerEditBuffer *buffer SIP_TRANSFER, QgsFeatureId fid, const QgsAttributeMap &newValues, const QgsAttributeMap &oldValues = QgsAttributeMap()
    );
 
    void undo() override;
    void redo() override;
 
  private:
    QgsFeatureId mFid;
    const QgsAttributeMap mNewValues;
    QgsAttributeMap mOldValues;
    QMap<int, bool> mFirstChanges;
};

 
class CORE_EXPORT QgsVectorLayerUndoPassthroughCommandAddAttribute : public QgsVectorLayerUndoPassthroughCommand
{
  public:
    QgsVectorLayerUndoPassthroughCommandAddAttribute( QgsVectorLayerEditBuffer *buffer SIP_TRANSFER, const QgsField &field );
 
    void undo() override;
    void redo() override;
 
  private:
    const QgsField mField;
};

 
class CORE_EXPORT QgsVectorLayerUndoPassthroughCommandDeleteAttribute : public QgsVectorLayerUndoPassthroughCommand
{
  public:
    QgsVectorLayerUndoPassthroughCommandDeleteAttribute( QgsVectorLayerEditBuffer *buffer SIP_TRANSFER, int attr );
 
    void undo() override;
    void redo() override;
 
  private:
    const QgsField mField;
    const int mOriginalFieldIndex;
};

 
class CORE_EXPORT QgsVectorLayerUndoPassthroughCommandRenameAttribute : public QgsVectorLayerUndoPassthroughCommand
{
  public:
    QgsVectorLayerUndoPassthroughCommandRenameAttribute( QgsVectorLayerEditBuffer *buffer SIP_TRANSFER, int attr, const QString &newName );
 
    void undo() override;
    void redo() override;
 
  private:
    const int mAttr;
    const QString mNewName;
    const QString mOldName;
};

 
class CORE_EXPORT QgsVectorLayerUndoPassthroughCommandUpdate : public QgsVectorLayerUndoPassthroughCommand
{
  public:
    QgsVectorLayerUndoPassthroughCommandUpdate( QgsVectorLayerEditBuffer *buffer SIP_TRANSFER, QgsTransaction *transaction, const QString &sql, const QString &name );
 
    void undo() override;
    void redo() override;
 
  private:
    QgsTransaction *mTransaction = nullptr;
    QString mSql;
    bool mUndone = false;
};
 
#endif