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[GRASS] enable to attache attributes to geom without cat, fixes #13739
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| /*************************************************************************** | ||
| qgsgrassundocommand.cpp | ||
| ------------------- | ||
| begin : November, 2015 | ||
| copyright : (C) 2015 by Radim Blazek | ||
| email : radim.blazek@gmail.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. * | ||
| * * | ||
| ***************************************************************************/ | ||
| #include "qgsgrassundocommand.h" | ||
|
|
||
| #include "qgsgrassprovider.h" | ||
| #include "qgslogger.h" | ||
|
|
||
| QgsGrassUndoCommandChangeAttribute::QgsGrassUndoCommandChangeAttribute( QgsGrassProvider * provider, int fid, int lid, int field, int cat, bool deleteCat, bool deleteRecord ) | ||
| : mProvider( provider ) | ||
| , mFid(fid) | ||
| , mLid(lid) | ||
| , mField(field) | ||
| , mCat(cat) | ||
| , mDeleteCat(deleteCat) | ||
| , mDeleteRecord( deleteRecord ) | ||
| { | ||
| } | ||
|
|
||
| void QgsGrassUndoCommandChangeAttribute::undo() | ||
| { | ||
| QgsDebugMsg( QString("mLid = %1 mField = %2, mCat = %3").arg(mLid).arg(mField).arg(mCat) ); | ||
| if ( mDeleteCat ) | ||
| { | ||
| int realLine = mLid; | ||
| if ( mProvider->mLayer->map()->newLids().contains( mLid ) ) | ||
| { | ||
| realLine = mProvider->mLayer->map()->newLids().value( mLid ); | ||
| } | ||
| QgsDebugMsg( QString("realLine = %1").arg(realLine) ); | ||
|
|
||
| int type = mProvider->readLine( mProvider->mPoints, mProvider->mCats, realLine ); | ||
| if ( type <= 0 ) | ||
| { | ||
| QgsDebugMsg( "cannot read line" ); | ||
| } | ||
| else | ||
| { | ||
| if ( Vect_field_cat_del( mProvider->mCats, mProvider->mLayerField, mCat ) == 0 ) | ||
| { | ||
| // should not happen | ||
| QgsDebugMsg( "the line does not have the category" ); | ||
| } | ||
| else | ||
| { | ||
| mProvider->mLayer->map()->lockReadWrite(); | ||
| int newLid = mProvider->rewriteLine( realLine, type, mProvider->mPoints, mProvider->mCats ); | ||
| Q_UNUSED( newLid ); | ||
| mProvider->mLayer->map()->newCats().remove(mFid); | ||
| mProvider->mLayer->map()->unlockReadWrite(); | ||
| } | ||
| } | ||
| } | ||
| if ( mDeleteRecord ) | ||
| { | ||
| QString error; | ||
| mProvider->mLayer->deleteAttribute( mCat, error ); | ||
| if ( !error.isEmpty() ) | ||
| { | ||
| QgsGrass::warning( error ); | ||
| } | ||
| } | ||
| } | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| /*************************************************************************** | ||
| qgsgrassundocommand.h | ||
| ------------------- | ||
| begin : November, 2015 | ||
| copyright : (C) 2015 by Radim Blazek | ||
| email : radim.blazek@gmail.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 QGSGRASSUNDOCOMMAND_H | ||
| #define QGSGRASSUNDOCOMMAND_H | ||
|
|
||
| class QgsGrassProvider; | ||
|
|
||
| class GRASS_LIB_EXPORT QgsGrassUndoCommand | ||
| { | ||
| public: | ||
| virtual ~QgsGrassUndoCommand() {} | ||
| virtual void undo() {} | ||
| }; | ||
|
|
||
| // This class is used to store information that a new cat was attached to a line | ||
| // when attribute was changed. | ||
| class GRASS_LIB_EXPORT QgsGrassUndoCommandChangeAttribute : public QgsGrassUndoCommand | ||
| { | ||
| public: | ||
| QgsGrassUndoCommandChangeAttribute( QgsGrassProvider * provider, int fid, int lid, int field, int cat, bool deleteCat, bool deleteRecord ); | ||
| ~QgsGrassUndoCommandChangeAttribute() {} | ||
| void undo() override; | ||
| private: | ||
| QgsGrassProvider *mProvider; | ||
| int mFid; | ||
| int mLid; | ||
| int mField; | ||
| int mCat; | ||
| bool mDeleteCat; | ||
| bool mDeleteRecord; | ||
| }; | ||
|
|
||
| #endif // QGSGRASSUNDOCOMMAND_H |
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