dxf export: make encoding configurable (fixes #11578)

Author: jef-n

python/core/dxf/qgsdxfexport.sip

@@ -32,7 +32,7 @@ class QgsDxfExport
     ~QgsDxfExport();
 
     void addLayers( const QList< QPair<QgsVectorLayer *, int > > &layers );
-    int writeToFile( QIODevice* d );  //maybe add progress dialog? //other parameters (e.g. scale, dpi)?
+    int writeToFile( QIODevice *d, QString codec );  //maybe add progress dialog? other parameters (e.g. scale, dpi)?
 
     void setSymbologyScaleDenominator( double d );
     double symbologyScaleDenominator() const;
@@ -43,7 +43,7 @@ class QgsDxfExport
     void setSymbologyExport( QgsDxfExport::SymbologyExport e );
     QgsDxfExport::SymbologyExport symbologyExport() const;
 
-    void setExtent( const QgsRectangle& r );
+    void setExtent( const QgsRectangle &r );
     QgsRectangle extent() const;
 
     //get closest entry in dxf palette
@@ -55,39 +55,39 @@ class QgsDxfExport
     void writeGroup( int code, int i ) /PyName=writeGroupInt/;
     //! @note available in python bindings as writeGroupDouble
     void writeGroup( int code, double d ) /PyName=writeGroupDouble/;
-    void writeGroup( int code, const QString& s );
+    void writeGroup( int code, const QString &s );
     void writeGroupCode( int code );
     void writeInt( int i );
     void writeDouble( double d );
-    void writeString( const QString& s );
+    void writeString( const QString &s );
     void writeGroup( int code, const QgsPoint &p, double z = 0.0, bool skipz = false ) /PyName=writeGroupPoint/;
     void writeGroup( QColor color, int exactMatch = 62, int rgbCode = 420, int transparencyCode = 440 );
 
     int writeHandle( int code = 5, int handle = 0 );
 
     //draw dxf primitives
-    void writePolyline( const QgsPolyline& line, const QString& layer, const QString& lineStyleName, QColor color,
+    void writePolyline( const QgsPolyline &line, const QString &layer, const QString &lineStyleName, QColor color,
                         double width = -1, bool polygon = false );
 
     void writePolygon( const QgsPolygon &polygon, const QString &layer, const QString &hatchPattern, QColor color );
 
-    void writeSolid( const QString& layer, QColor color, const QgsPoint& pt1, const QgsPoint& pt2, const QgsPoint& pt3, const QgsPoint& pt4 );
+    void writeSolid( const QString &layer, QColor color, const QgsPoint &pt1, const QgsPoint &pt2, const QgsPoint &pt3, const QgsPoint &pt4 );
 
     //write line (as a polyline)
-    void writeLine( const QgsPoint& pt1, const QgsPoint& pt2, const QString& layer, const QString& lineStyleName, QColor color, double width = -1 );
+    void writeLine( const QgsPoint &pt1, const QgsPoint &pt2, const QString &layer, const QString &lineStyleName, QColor color, double width = -1 );
 
-    void writePoint( const QString& layer, QColor color, const QgsPoint& pt );
+    void writePoint( const QString &layer, QColor color, const QgsPoint &pt );
 
     void writeFilledCircle( const QString &layer, QColor color, const QgsPoint &pt, double radius );
 
-    void writeCircle( const QString& layer, QColor color, const QgsPoint& pt, double radius, const QString &lineStyleName, double width );
+    void writeCircle( const QString &layer, QColor color, const QgsPoint &pt, double radius, const QString &lineStyleName, double width );
 
-    void writeText( const QString& layer, const QString& text, const QgsPoint& pt, double size, double angle, QColor color );
+    void writeText( const QString &layer, const QString &text, const QgsPoint &pt, double size, double angle, QColor color );
 
-    void writeMText( const QString& layer, const QString& text, const QgsPoint& pt, double width, double angle, QColor color );
+    void writeMText( const QString &layer, const QString &text, const QgsPoint &pt, double width, double angle, QColor color );
 
     static double mapUnitScaleFactor( double scaleDenominator, QgsSymbolV2::OutputUnit symbolUnits, QGis::UnitType mapUnits );
 
-    static QString dxfLayerName( const QString& name );
+    static QString dxfLayerName( const QString &name );
 
 };

src/app/qgisapp.cpp

@@ -4180,7 +4180,7 @@ void QgisApp::dxfExport()
       fileName += ".dxf";
     QFile dxfFile( fileName );
     QApplication::setOverrideCursor( Qt::BusyCursor );
-    if ( dxfExport.writeToFile( &dxfFile ) == 0 )
+    if ( dxfExport.writeToFile( &dxfFile, d.encoding() ) == 0 )
     {
       messageBar()->pushMessage( tr( "DXF export completed" ), QgsMessageBar::INFO, 4 );
     }

src/app/qgsdxfexportdialog.cpp

@@ -408,6 +408,8 @@ QgsDxfExportDialog::QgsDxfExportDialog( QWidget *parent, Qt::WindowFlags f )
 
   buttonBox->button( QDialogButtonBox::Ok )->setEnabled( false );
   restoreGeometry( s.value( "/Windows/DxfExport/geometry" ).toByteArray() );
+  mEncoding->addItems( QgsDxfExport::encodings() );
+  mEncoding->setCurrentIndex( mEncoding->findText( s.value( "qgis/lastDxfEncoding", "CP1252" ).toString() ) );
 }
 
 
@@ -541,4 +543,10 @@ void QgsDxfExportDialog::saveSettings()
   s.setValue( "qgis/lastDxfSymbologyMode", mSymbologyModeComboBox->currentIndex() );
   s.setValue( "qgis/lastSymbologyExportScale", mScaleWidget->scale() );
   s.setValue( "qgis/lastDxfMapRectangle", mMapExtentCheckBox->isChecked() );
+  s.setValue( "qgis/lastDxfEncoding", mEncoding->currentText() );
+}
+
+QString QgsDxfExportDialog::encoding() const
+{
+  return mEncoding->currentText();
 }

src/app/qgsdxfexportdialog.h

@@ -85,6 +85,7 @@ class QgsDxfExportDialog : public QDialog, private Ui::QgsDxfExportDialogBase
     QgsDxfExport::SymbologyExport symbologyMode() const;
     QString saveFile() const;
     bool exportMapExtent() const;
+    QString encoding() const;
 
   public slots:
     /** change the selection of layers in the list */