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Linestyles for Qt pen styles

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mhugent committed Dec 5, 2013
1 parent 14de6e6 commit ef3eee2daa9f568f6a10163a6a31c42d33c321f4
Showing with 137 additions and 23 deletions.
  1. +128 −21 src/core/dxf/qgsdxfexport.cpp
  2. +9 −2 src/core/dxf/qgsdxfexport.h
@@ -20,6 +20,7 @@
#include "qgspoint.h"
#include "qgsrendererv2.h"
#include "qgssymbollayerv2.h"
#include "qgsfillsymbollayerv2.h"
#include "qgslinesymbollayerv2.h"
#include "qgsvectorlayer.h"
#include <QIODevice>
@@ -427,18 +428,10 @@ void QgsDxfExport::writeTables()
mLineStyles.clear();
writeGroup( 0, "TABLE" );
writeGroup( 2, "LTYPE" );
writeGroup( 70, nLineTypes( slList ) + 1 );
writeGroup( 70, nLineTypes( slList ) + 5 );

//add continuous style as default
writeGroup( 0, "LTYPE" );
writeGroup( 2, "CONTINUOUS" );
writeGroup( 70, 64 );
writeGroup( 3, "Defaultstyle" );
writeGroup( 72, 65 );
writeGroup( 73, 0 );
writeGroup( 40, 0.0 );

//add symbol layer linestyles
writeDefaultLinestyles();
//add custom linestyles
QList< QPair< QgsSymbolLayerV2*, QgsSymbolV2*> >::const_iterator slIt = slList.constBegin();
for ( ; slIt != slList.constEnd(); ++slIt )
{
@@ -829,15 +822,7 @@ void QgsDxfExport::addFeature( const QgsFeature& fet, const QString& layer, cons
{
int c = colorFromSymbolLayer( symbolLayer );
double width = widthFromSymbolLayer( symbolLayer );
QString lineStyleName = "CONTINUOUS";
QHash< const QgsSymbolLayerV2*, QString >::const_iterator lineTypeIt = mLineStyles.find( symbolLayer );
if ( lineTypeIt != mLineStyles.constEnd() )
{
lineStyleName = lineTypeIt.value();
}

//todo: write point symbols as blocks

QString lineStyleName = lineStyleFromSymbolLayer( symbolLayer );
QGis::WkbType geometryType = geom->wkbType();

//single point
@@ -922,7 +907,7 @@ int QgsDxfExport::colorFromSymbolLayer( const QgsSymbolLayerV2* symbolLayer )
return closestColorMatch( c.rgba() );
}

double QgsDxfExport::widthFromSymbolLayer( const QgsSymbolLayerV2* symbolLayer )
double QgsDxfExport::widthFromSymbolLayer( const QgsSymbolLayerV2* symbolLayer ) const
{
//line symbol layer has width and width units
if ( symbolLayer && symbolLayer->type() == QgsSymbolV2::Line )
@@ -938,6 +923,36 @@ double QgsDxfExport::widthFromSymbolLayer( const QgsSymbolLayerV2* symbolLayer )
//mapUnitScaleFactor( double scaleDenominator, QgsSymbolV2::OutputUnit symbolUnits, QGis::UnitType mapUnits )
}

QString QgsDxfExport::lineStyleFromSymbolLayer( const QgsSymbolLayerV2* symbolLayer )
{
QString lineStyleName = "CONTINUOUS";
if ( !symbolLayer )
{
return lineStyleName;
}

QHash< const QgsSymbolLayerV2*, QString >::const_iterator lineTypeIt = mLineStyles.find( symbolLayer );
if ( lineTypeIt != mLineStyles.constEnd() )
{
lineStyleName = lineTypeIt.value();
}
else
{
//simple line and simple fill have pen style member
if ( symbolLayer->layerType() == "SimpleLine" )
{
const QgsSimpleLineSymbolLayerV2* sl = static_cast< const QgsSimpleLineSymbolLayerV2* >( symbolLayer );
return lineNameFromPenStyle( sl->penStyle() );
}
else if ( symbolLayer->layerType() == "SimpleFill" )
{
const QgsSimpleFillSymbolLayerV2* sf = static_cast< const QgsSimpleFillSymbolLayerV2* >( symbolLayer );
return lineNameFromPenStyle( sf->borderStyle() );
}
}
return lineStyleName;
}

int QgsDxfExport::closestColorMatch( QRgb pixel )
{
int idx = 0;
@@ -1070,6 +1085,48 @@ QList< QPair< QgsSymbolLayerV2*, QgsSymbolV2* > > QgsDxfExport::symbolLayers()
return symbolLayers;
}

void QgsDxfExport::writeDefaultLinestyles()
{
double das = dashSize();
double dos = dotSize();
double dss = dashSeparatorSize();

//continuous (Qt solid line)
writeGroup( 0, "LTYPE" );
writeGroup( 2, "CONTINUOUS" );
writeGroup( 70, 64 );
writeGroup( 3, "Defaultstyle" );
writeGroup( 72, 65 );
writeGroup( 73, 0 );
writeGroup( 40, 0.0 );

QVector<qreal> dashVector( 2 );
dashVector[0] = das;
dashVector[1] = dss;
writeLinestyle( "DASH", dashVector, QgsSymbolV2::MapUnit );

QVector<qreal> dotVector( 2 );
dotVector[0] = dos;
dotVector[1] = dss;
writeLinestyle( "DOT", dotVector, QgsSymbolV2::MapUnit );

QVector<qreal> dashDotVector( 4 );
dashDotVector[0] = das;
dashDotVector[1] = dss;
dashDotVector[2] = dos;
dashDotVector[3] = dss;
writeLinestyle( "DASHDOT", dashDotVector, QgsSymbolV2::MapUnit );

QVector<qreal> dashDotDotVector( 6 );
dashDotDotVector[0] = das;
dashDotDotVector[1] = dss;
dashDotDotVector[2] = dos;
dashDotDotVector[3] = dss;
dashDotDotVector[4] = dos;
dashDotDotVector[5] = dss;
writeLinestyle( "DASHDOTDOT", dashDotDotVector, QgsSymbolV2::MapUnit );
}

void QgsDxfExport::writeSymbolLayerLinestyle( const QgsSymbolLayerV2* symbolLayer )
{
if ( !symbolLayer )
@@ -1155,6 +1212,56 @@ bool QgsDxfExport::hasDataDefinedProperties( const QgsSymbolLayerV2* sl, const Q
return sl->hasDataDefinedProperties();
}

double QgsDxfExport::dashSize() const
{
double size = mSymbologyScaleDenominator * 0.002;
return sizeToMapUnits( size );
}

double QgsDxfExport::dotSize() const
{
double size = mSymbologyScaleDenominator * 0.0006;
return sizeToMapUnits( size );
}

double QgsDxfExport::dashSeparatorSize() const
{
double size = mSymbologyScaleDenominator * 0.0006;
return sizeToMapUnits( size );
}

double QgsDxfExport::sizeToMapUnits( double s ) const
{
double size = s;
if ( mMapUnits == QGis::Feet )
{
size /= 0.3048;
}
else if ( mMapUnits == QGis::Degrees )
{
size /= 111120;
}
return size;
}

QString QgsDxfExport::lineNameFromPenStyle( Qt::PenStyle style )
{
switch ( style )
{
case Qt::DashLine:
return "DASH";
case Qt::DotLine:
return "DOT";
case Qt::DashDotLine:
return "DASHDOT";
case Qt::DashDotDotLine:
return "DASHDOTDOT";
case Qt::SolidLine:
default:
return "CONTINUOUS";
}
}

/******************************************************Test with AC_1018 methods***************************************************************/

void QgsDxfExport::writeHeaderAC1018( QTextStream& stream )
@@ -108,6 +108,7 @@ class QgsDxfExport

void writePoint( const QgsPoint& pt, const QString& layer, const QgsFeature* f, const QgsSymbolLayerV2* symbolLayer, const QgsSymbolV2* symbol );
void writeVertex( const QgsPoint& pt, const QString& layer );
void writeDefaultLinestyles();
void writeSymbolLayerLinestyle( const QgsSymbolLayerV2* symbolLayer );
void writeLinestyle( const QString& styleName, const QVector<qreal>& pattern, QgsSymbolV2::OutputUnit u );

@@ -129,8 +130,9 @@ class QgsDxfExport
double scaleToMapUnits( double value, QgsSymbolV2::OutputUnit symbolUnits, QGis::UnitType mapUnits ) const;

//returns dxf palette index from symbol layer color
int colorFromSymbolLayer( const QgsSymbolLayerV2* symbolLayer );
double widthFromSymbolLayer( const QgsSymbolLayerV2* symbolLayer );
static int colorFromSymbolLayer( const QgsSymbolLayerV2* symbolLayer );
double widthFromSymbolLayer( const QgsSymbolLayerV2* symbolLayer ) const;
QString lineStyleFromSymbolLayer( const QgsSymbolLayerV2* symbolLayer );

//functions for dxf palette
static int color_distance( QRgb p1, int index );
@@ -144,6 +146,11 @@ class QgsDxfExport
QList< QPair< QgsSymbolLayerV2*, QgsSymbolV2* > > symbolLayers();
static int nLineTypes( const QList< QPair< QgsSymbolLayerV2*, QgsSymbolV2*> >& symbolLayers );
static bool hasDataDefinedProperties( const QgsSymbolLayerV2* sl, const QgsSymbolV2* symbol );
double dashSize() const;
double dotSize() const;
double dashSeparatorSize() const;
double sizeToMapUnits( double s ) const;
static QString lineNameFromPenStyle( Qt::PenStyle style );
};

#endif // QGSDXFEXPORT_H

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