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qgssimplelinematerialsettings.cpp
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qgssimplelinematerialsettings.cpp
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/***************************************************************************
qgssimplelinematerialsettings.cpp
--------------------------------------
Date : August 2020
Copyright : (C) 2020 by Nyall Dawson
Email : nyall dot dawson 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. *
* *
***************************************************************************/
#include "qgssimplelinematerialsettings.h"
#include "qgssymbollayerutils.h"
#include "qgslinematerial_p.h"
#include <Qt3DRender/QTexture>
#include <Qt3DRender/QParameter>
#include <Qt3DRender/QEffect>
#include <QMap>
QString QgsSimpleLineMaterialSettings::type() const
{
return QStringLiteral( "simpleline" );
}
bool QgsSimpleLineMaterialSettings::supportsTechnique( QgsMaterialSettingsRenderingTechnique technique )
{
switch ( technique )
{
case QgsMaterialSettingsRenderingTechnique::Lines:
return true;
case QgsMaterialSettingsRenderingTechnique::Triangles:
case QgsMaterialSettingsRenderingTechnique::InstancedPoints:
case QgsMaterialSettingsRenderingTechnique::Points:
case QgsMaterialSettingsRenderingTechnique::TrianglesWithFixedTexture:
case QgsMaterialSettingsRenderingTechnique::TrianglesFromModel:
return false;
}
return false;
}
QgsAbstractMaterialSettings *QgsSimpleLineMaterialSettings::create()
{
return new QgsSimpleLineMaterialSettings();
}
QgsSimpleLineMaterialSettings *QgsSimpleLineMaterialSettings::clone() const
{
return new QgsSimpleLineMaterialSettings( *this );
}
void QgsSimpleLineMaterialSettings::readXml( const QDomElement &elem, const QgsReadWriteContext & )
{
mAmbient = QgsSymbolLayerUtils::decodeColor( elem.attribute( QStringLiteral( "ambient" ), QStringLiteral( "25,25,25" ) ) );
}
void QgsSimpleLineMaterialSettings::writeXml( QDomElement &elem, const QgsReadWriteContext & ) const
{
elem.setAttribute( QStringLiteral( "ambient" ), QgsSymbolLayerUtils::encodeColor( mAmbient ) );
}
Qt3DRender::QMaterial *QgsSimpleLineMaterialSettings::toMaterial( QgsMaterialSettingsRenderingTechnique technique, const QgsMaterialContext &context ) const
{
switch ( technique )
{
case QgsMaterialSettingsRenderingTechnique::Triangles:
case QgsMaterialSettingsRenderingTechnique::InstancedPoints:
case QgsMaterialSettingsRenderingTechnique::Points:
case QgsMaterialSettingsRenderingTechnique::TrianglesWithFixedTexture:
case QgsMaterialSettingsRenderingTechnique::TrianglesFromModel:
return nullptr;
case QgsMaterialSettingsRenderingTechnique::Lines:
{
QgsLineMaterial *mat = new QgsLineMaterial;
mat->setLineColor( mAmbient );
if ( context.isSelected() )
{
// update the material with selection colors
mat->setLineColor( context.selectionColor() );
}
return mat;
}
}
return nullptr;
}
QMap<QString, QString> QgsSimpleLineMaterialSettings::toExportParameters() const
{
QMap<QString, QString> parameters;
parameters[ QStringLiteral( "Ka" ) ] = QStringLiteral( "%1 %2 %3" ).arg( mAmbient.redF() ).arg( mAmbient.greenF() ).arg( mAmbient.blueF() );
return parameters;
}
void QgsSimpleLineMaterialSettings::addParametersToEffect( Qt3DRender::QEffect *effect ) const
{
Qt3DRender::QParameter *ambientParameter = new Qt3DRender::QParameter( QStringLiteral( "ka" ), QColor::fromRgbF( 0.05f, 0.05f, 0.05f, 1.0f ) );
ambientParameter->setValue( mAmbient );
effect->addParameter( ambientParameter );
}