/
qgsfillsymbollayerv2.cpp
1262 lines (1072 loc) · 38.1 KB
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qgsfillsymbollayerv2.cpp
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/***************************************************************************
qgsfillsymbollayerv2.cpp
---------------------
begin : November 2009
copyright : (C) 2009 by Martin Dobias
email : wonder.sk at 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 "qgsfillsymbollayerv2.h"
#include "qgsmarkersymbollayerv2.h"
#include "qgssymbollayerv2utils.h"
#include "qgsrendercontext.h"
#include "qgsproject.h"
#include "qgssvgcache.h"
#include "qgslogger.h"
#include <QPainter>
#include <QFile>
#include <QSvgRenderer>
#include <QDomDocument>
#include <QDomElement>
QgsSimpleFillSymbolLayerV2::QgsSimpleFillSymbolLayerV2( QColor color, Qt::BrushStyle style, QColor borderColor, Qt::PenStyle borderStyle, double borderWidth )
: mBrushStyle( style ), mBorderColor( borderColor ), mBorderStyle( borderStyle ), mBorderWidth( borderWidth )
{
mColor = color;
}
QgsSymbolLayerV2* QgsSimpleFillSymbolLayerV2::create( const QgsStringMap& props )
{
QColor color = DEFAULT_SIMPLEFILL_COLOR;
Qt::BrushStyle style = DEFAULT_SIMPLEFILL_STYLE;
QColor borderColor = DEFAULT_SIMPLEFILL_BORDERCOLOR;
Qt::PenStyle borderStyle = DEFAULT_SIMPLEFILL_BORDERSTYLE;
double borderWidth = DEFAULT_SIMPLEFILL_BORDERWIDTH;
QPointF offset;
if ( props.contains( "color" ) )
color = QgsSymbolLayerV2Utils::decodeColor( props["color"] );
if ( props.contains( "style" ) )
style = QgsSymbolLayerV2Utils::decodeBrushStyle( props["style"] );
if ( props.contains( "color_border" ) )
borderColor = QgsSymbolLayerV2Utils::decodeColor( props["color_border"] );
if ( props.contains( "style_border" ) )
borderStyle = QgsSymbolLayerV2Utils::decodePenStyle( props["style_border"] );
if ( props.contains( "width_border" ) )
borderWidth = props["width_border"].toDouble();
if ( props.contains( "offset" ) )
offset = QgsSymbolLayerV2Utils::decodePoint( props["offset"] );
QgsSimpleFillSymbolLayerV2* sl = new QgsSimpleFillSymbolLayerV2( color, style, borderColor, borderStyle, borderWidth );
sl->setOffset( offset );
return sl;
}
QString QgsSimpleFillSymbolLayerV2::layerType() const
{
return "SimpleFill";
}
void QgsSimpleFillSymbolLayerV2::startRender( QgsSymbolV2RenderContext& context )
{
QColor fillColor = mColor;
fillColor.setAlphaF( context.alpha() * mColor.alphaF() );
mBrush = QBrush( fillColor, mBrushStyle );
// scale brush content for printout
double rasterScaleFactor = context.renderContext().rasterScaleFactor();
if ( rasterScaleFactor != 1.0 )
{
mBrush.setMatrix( QMatrix().scale( 1.0 / rasterScaleFactor, 1.0 / rasterScaleFactor ) );
}
QColor selColor = context.selectionColor();
QColor selPenColor = selColor == mColor ? selColor : mBorderColor;
if ( ! selectionIsOpaque ) selColor.setAlphaF( context.alpha() );
mSelBrush = QBrush( selColor );
// N.B. unless a "selection line color" is implemented in addition to the "selection color" option
// this would mean symbols with "no fill" look the same whether or not they are selected
if ( selectFillStyle )
mSelBrush.setStyle( mBrushStyle );
QColor borderColor = mBorderColor;
borderColor.setAlphaF( context.alpha() * mBorderColor.alphaF() );
mPen = QPen( borderColor );
mSelPen = QPen( selPenColor );
mPen.setStyle( mBorderStyle );
mPen.setWidthF( context.outputLineWidth( mBorderWidth ) );
}
void QgsSimpleFillSymbolLayerV2::stopRender( QgsSymbolV2RenderContext& context )
{
Q_UNUSED( context );
}
void QgsSimpleFillSymbolLayerV2::renderPolygon( const QPolygonF& points, QList<QPolygonF>* rings, QgsSymbolV2RenderContext& context )
{
QPainter* p = context.renderContext().painter();
if ( !p )
{
return;
}
p->setBrush( context.selected() ? mSelBrush : mBrush );
p->setPen( mPen );
p->setPen( context.selected() ? mSelPen : mPen );
if ( !mOffset.isNull() )
p->translate( mOffset );
_renderPolygon( p, points, rings );
if ( !mOffset.isNull() )
p->translate( -mOffset );
}
QgsStringMap QgsSimpleFillSymbolLayerV2::properties() const
{
QgsStringMap map;
map["color"] = QgsSymbolLayerV2Utils::encodeColor( mColor );
map["style"] = QgsSymbolLayerV2Utils::encodeBrushStyle( mBrushStyle );
map["color_border"] = QgsSymbolLayerV2Utils::encodeColor( mBorderColor );
map["style_border"] = QgsSymbolLayerV2Utils::encodePenStyle( mBorderStyle );
map["width_border"] = QString::number( mBorderWidth );
map["offset"] = QgsSymbolLayerV2Utils::encodePoint( mOffset );
return map;
}
QgsSymbolLayerV2* QgsSimpleFillSymbolLayerV2::clone() const
{
QgsSimpleFillSymbolLayerV2* sl = new QgsSimpleFillSymbolLayerV2( mColor, mBrushStyle, mBorderColor, mBorderStyle, mBorderWidth );
sl->setOffset( mOffset );
return sl;
}
void QgsSimpleFillSymbolLayerV2::toSld( QDomDocument &doc, QDomElement &element, QgsStringMap props ) const
{
if ( mBrushStyle == Qt::NoBrush && mBorderStyle == Qt::NoPen )
return;
QDomElement symbolizerElem = doc.createElement( "se:PolygonSymbolizer" );
if ( !props.value( "uom", "" ).isEmpty() )
symbolizerElem.setAttribute( "uom", props.value( "uom", "" ) );
element.appendChild( symbolizerElem );
// <Geometry>
QgsSymbolLayerV2Utils::createGeometryElement( doc, symbolizerElem, props.value( "geom", "" ) );
if ( mBrushStyle != Qt::NoBrush )
{
// <Fill>
QDomElement fillElem = doc.createElement( "se:Fill" );
symbolizerElem.appendChild( fillElem );
QgsSymbolLayerV2Utils::fillToSld( doc, fillElem, mBrushStyle, mColor );
}
if ( mBorderStyle != Qt::NoPen )
{
// <Stroke>
QDomElement strokeElem = doc.createElement( "se:Stroke" );
symbolizerElem.appendChild( strokeElem );
QgsSymbolLayerV2Utils::lineToSld( doc, strokeElem, mBorderStyle, mBorderColor, mBorderWidth );
}
// <se:Displacement>
QgsSymbolLayerV2Utils::createDisplacementElement( doc, symbolizerElem, mOffset );
}
QgsSymbolLayerV2* QgsSimpleFillSymbolLayerV2::createFromSld( QDomElement &element )
{
QgsDebugMsg( "Entered." );
QColor color, borderColor;
Qt::BrushStyle fillStyle;
Qt::PenStyle borderStyle;
double borderWidth;
QDomElement fillElem = element.firstChildElement( "Fill" );
QgsSymbolLayerV2Utils::fillFromSld( fillElem, fillStyle, color );
QDomElement strokeElem = element.firstChildElement( "Stroke" );
QgsSymbolLayerV2Utils::lineFromSld( strokeElem, borderStyle, borderColor, borderWidth );
QPointF offset;
QgsSymbolLayerV2Utils::displacementFromSldElement( element, offset );
QgsSimpleFillSymbolLayerV2* sl = new QgsSimpleFillSymbolLayerV2( color, fillStyle, borderColor, borderStyle, borderWidth );
sl->setOffset( offset );
return sl;
}
//QgsImageFillSymbolLayer
QgsImageFillSymbolLayer::QgsImageFillSymbolLayer(): mOutlineWidth( 0.0 ), mOutline( 0 )
{
setSubSymbol( new QgsLineSymbolV2() );
}
QgsImageFillSymbolLayer::~QgsImageFillSymbolLayer()
{
}
void QgsImageFillSymbolLayer::renderPolygon( const QPolygonF& points, QList<QPolygonF>* rings, QgsSymbolV2RenderContext& context )
{
QPainter* p = context.renderContext().painter();
if ( !p )
{
return;
}
p->setPen( QPen( Qt::NoPen ) );
if ( context.selected() )
{
QColor selColor = context.selectionColor();
// Alister - this doesn't seem to work here
//if ( ! selectionIsOpaque )
// selColor.setAlphaF( context.alpha() );
p->setBrush( QBrush( selColor ) );
_renderPolygon( p, points, rings );
}
if ( doubleNear( mAngle, 0.0 ) )
{
p->setBrush( mBrush );
}
else
{
QTransform t = mBrush.transform();
t.rotate( mAngle );
QBrush rotatedBrush = mBrush;
rotatedBrush.setTransform( t );
p->setBrush( rotatedBrush );
}
_renderPolygon( p, points, rings );
if ( mOutline )
{
mOutline->renderPolyline( points, context.feature(), context.renderContext(), -1, selectFillBorder && context.selected() );
if ( rings )
{
QList<QPolygonF>::const_iterator ringIt = rings->constBegin();
for ( ; ringIt != rings->constEnd(); ++ringIt )
{
mOutline->renderPolyline( *ringIt, context.feature(), context.renderContext(), -1, selectFillBorder && context.selected() );
}
}
}
}
bool QgsImageFillSymbolLayer::setSubSymbol( QgsSymbolV2* symbol )
{
if ( !symbol ) //unset current outline
{
delete mOutline;
mOutline = 0;
return true;
}
if ( symbol->type() != QgsSymbolV2::Line )
{
delete symbol;
return false;
}
QgsLineSymbolV2* lineSymbol = dynamic_cast<QgsLineSymbolV2*>( symbol );
if ( lineSymbol )
{
delete mOutline;
mOutline = lineSymbol;
return true;
}
delete symbol;
return false;
}
//QgsSVGFillSymbolLayer
QgsSVGFillSymbolLayer::QgsSVGFillSymbolLayer( const QString& svgFilePath, double width, double angle ): QgsImageFillSymbolLayer(), mPatternWidth( width )
{
setSvgFilePath( svgFilePath );
mOutlineWidth = 0.3;
mAngle = angle;
setDefaultSvgParams();
}
QgsSVGFillSymbolLayer::QgsSVGFillSymbolLayer( const QByteArray& svgData, double width, double angle ): QgsImageFillSymbolLayer(), mPatternWidth( width ),
mSvgData( svgData )
{
storeViewBox();
mOutlineWidth = 0.3;
mAngle = angle;
setSubSymbol( new QgsLineSymbolV2() );
setDefaultSvgParams();
}
QgsSVGFillSymbolLayer::~QgsSVGFillSymbolLayer()
{
delete mOutline;
}
void QgsSVGFillSymbolLayer::setSvgFilePath( const QString& svgPath )
{
QFile svgFile( svgPath );
if ( svgFile.open( QFile::ReadOnly ) )
{
mSvgData = svgFile.readAll();
storeViewBox();
}
mSvgFilePath = svgPath;
setDefaultSvgParams();
}
QgsSymbolLayerV2* QgsSVGFillSymbolLayer::create( const QgsStringMap& properties )
{
QByteArray data;
double width = 20;
QString svgFilePath;
double angle = 0.0;
if ( properties.contains( "width" ) )
{
width = properties["width"].toDouble();
}
if ( properties.contains( "svgFile" ) )
{
QString svgName = properties["svgFile"];
QString savePath = QgsSvgMarkerSymbolLayerV2::symbolNameToPath( svgName );
svgFilePath = ( savePath.isEmpty() ? svgName : savePath );
}
if ( properties.contains( "angle" ) )
{
angle = properties["angle"].toDouble();
}
QgsSVGFillSymbolLayer* symbolLayer = 0;
if ( !svgFilePath.isEmpty() )
{
symbolLayer = new QgsSVGFillSymbolLayer( svgFilePath, width, angle );
}
else
{
if ( properties.contains( "data" ) )
{
data = QByteArray::fromHex( properties["data"].toLocal8Bit() );
}
symbolLayer = new QgsSVGFillSymbolLayer( data, width, angle );
}
//svg parameters
if ( properties.contains( "svgFillColor" ) )
{
symbolLayer->setSvgFillColor( QColor( properties["svgFillColor"] ) );
}
if ( properties.contains( "svgOutlineColor" ) )
{
symbolLayer->setSvgOutlineColor( QColor( properties["svgOutlineColor"] ) );
}
if ( properties.contains( "svgOutlineWidth" ) )
{
symbolLayer->setSvgOutlineWidth( properties["svgOutlineWidth"].toDouble() );
}
return symbolLayer;
}
QString QgsSVGFillSymbolLayer::layerType() const
{
return "SVGFill";
}
void QgsSVGFillSymbolLayer::startRender( QgsSymbolV2RenderContext& context )
{
if ( mSvgViewBox.isNull() )
{
return;
}
int size = context.outputPixelSize( mPatternWidth );
const QImage& patternImage = QgsSvgCache::instance()->svgAsImage( mSvgFilePath, size, mSvgFillColor, mSvgOutlineColor, mSvgOutlineWidth,
context.renderContext().scaleFactor(), context.renderContext().rasterScaleFactor() );
QTransform brushTransform;
brushTransform.scale( 1.0 / context.renderContext().rasterScaleFactor(), 1.0 / context.renderContext().rasterScaleFactor() );
if ( !doubleNear( context.alpha(), 1.0 ) )
{
QImage transparentImage = patternImage.copy();
QgsSymbolLayerV2Utils::multiplyImageOpacity( &transparentImage, context.alpha() );
mBrush.setTextureImage( transparentImage );
}
else
{
mBrush.setTextureImage( patternImage );
}
mBrush.setTransform( brushTransform );
if ( mOutline )
{
mOutline->startRender( context.renderContext() );
}
}
void QgsSVGFillSymbolLayer::stopRender( QgsSymbolV2RenderContext& context )
{
if ( mOutline )
{
mOutline->stopRender( context.renderContext() );
}
}
QgsStringMap QgsSVGFillSymbolLayer::properties() const
{
QgsStringMap map;
if ( !mSvgFilePath.isEmpty() )
{
map.insert( "svgFile", QgsSvgMarkerSymbolLayerV2::symbolPathToName( mSvgFilePath ) );
}
else
{
map.insert( "data", QString( mSvgData.toHex() ) );
}
map.insert( "width", QString::number( mPatternWidth ) );
map.insert( "angle", QString::number( mAngle ) );
//svg parameters
map.insert( "svgFillColor", mSvgFillColor.name() );
map.insert( "svgOutlineColor", mSvgOutlineColor.name() );
map.insert( "svgOutlineWidth", QString::number( mSvgOutlineWidth ) );
return map;
}
QgsSymbolLayerV2* QgsSVGFillSymbolLayer::clone() const
{
QgsSymbolLayerV2* clonedLayer = 0;
if ( !mSvgFilePath.isEmpty() )
{
clonedLayer = new QgsSVGFillSymbolLayer( mSvgFilePath, mPatternWidth, mAngle );
QgsSVGFillSymbolLayer* sl = static_cast<QgsSVGFillSymbolLayer*>( clonedLayer );
sl->setSvgFillColor( mSvgFillColor );
sl->setSvgOutlineColor( mSvgOutlineColor );
sl->setSvgOutlineWidth( mSvgOutlineWidth );
}
else
{
clonedLayer = new QgsSVGFillSymbolLayer( mSvgData, mPatternWidth, mAngle );
}
if ( mOutline )
{
clonedLayer->setSubSymbol( mOutline->clone() );
}
return clonedLayer;
}
void QgsSVGFillSymbolLayer::toSld( QDomDocument &doc, QDomElement &element, QgsStringMap props ) const
{
QDomElement symbolizerElem = doc.createElement( "se:PolygonSymbolizer" );
if ( !props.value( "uom", "" ).isEmpty() )
symbolizerElem.setAttribute( "uom", props.value( "uom", "" ) );
element.appendChild( symbolizerElem );
QgsSymbolLayerV2Utils::createGeometryElement( doc, symbolizerElem, props.value( "geom", "" ) );
QDomElement fillElem = doc.createElement( "se:Fill" );
symbolizerElem.appendChild( fillElem );
QDomElement graphicFillElem = doc.createElement( "se:GraphicFill" );
fillElem.appendChild( graphicFillElem );
QDomElement graphicElem = doc.createElement( "se:Graphic" );
graphicFillElem.appendChild( graphicElem );
if ( !mSvgFilePath.isEmpty() )
{
QgsSymbolLayerV2Utils::externalGraphicToSld( doc, graphicElem, mSvgFilePath, "image/svg+xml", mSvgFillColor, mPatternWidth );
}
else
{
// TODO: create svg from data
// <se:InlineContent>
symbolizerElem.appendChild( doc.createComment( "SVG from data not implemented yet" ) );
}
if ( mSvgOutlineColor.isValid() || mSvgOutlineWidth >= 0 )
{
QgsSymbolLayerV2Utils::lineToSld( doc, graphicElem, Qt::SolidLine, mSvgOutlineColor, mSvgOutlineWidth );
}
// <Rotation>
QString angleFunc;
bool ok;
double angle = props.value( "angle", "0" ).toDouble( &ok );
if ( !ok )
{
angleFunc = QString( "%1 + %2" ).arg( props.value( "angle", "0" ) ).arg( mAngle );
}
else if ( angle + mAngle != 0 )
{
angleFunc = QString::number( angle + mAngle );
}
QgsSymbolLayerV2Utils::createRotationElement( doc, graphicElem, angleFunc );
if ( mOutline )
{
// the outline sub symbol should be stored within the Stroke element,
// but it will be stored in a separated LineSymbolizer because it could
// have more than one layer
mOutline->toSld( doc, element, props );
}
}
QgsSymbolLayerV2* QgsSVGFillSymbolLayer::createFromSld( QDomElement &element )
{
QgsDebugMsg( "Entered." );
QString path, mimeType;
QColor fillColor, borderColor;
Qt::PenStyle penStyle;
double size, borderWidth;
QDomElement fillElem = element.firstChildElement( "Fill" );
if ( fillElem.isNull() )
return NULL;
QDomElement graphicFillElem = fillElem.firstChildElement( "GraphicFill" );
if ( graphicFillElem.isNull() )
return NULL;
QDomElement graphicElem = graphicFillElem.firstChildElement( "Graphic" );
if ( graphicElem.isNull() )
return NULL;
if ( !QgsSymbolLayerV2Utils::externalGraphicFromSld( graphicElem, path, mimeType, fillColor, size ) )
return NULL;
if ( mimeType != "image/svg+xml" )
return NULL;
QgsSymbolLayerV2Utils::lineFromSld( graphicElem, penStyle, borderColor, borderWidth );
double angle = 0.0;
QString angleFunc;
if ( QgsSymbolLayerV2Utils::rotationFromSldElement( graphicElem, angleFunc ) )
{
bool ok;
double d = angleFunc.toDouble( &ok );
if ( ok )
angle = d;
}
QgsSVGFillSymbolLayer* sl = new QgsSVGFillSymbolLayer( path, size, angle );
sl->setSvgFillColor( fillColor );
sl->setSvgOutlineColor( borderColor );
sl->setSvgOutlineWidth( borderWidth );
// try to get the outline
QDomElement strokeElem = element.firstChildElement( "Stroke" );
if ( !strokeElem.isNull() )
{
QgsSymbolLayerV2 *l = QgsSymbolLayerV2Utils::createLineLayerFromSld( strokeElem );
if ( l )
{
QgsSymbolLayerV2List layers;
layers.append( l );
sl->setSubSymbol( new QgsLineSymbolV2( layers ) );
}
}
return sl;
}
void QgsSVGFillSymbolLayer::storeViewBox()
{
if ( !mSvgData.isEmpty() )
{
QSvgRenderer r( mSvgData );
if ( r.isValid() )
{
mSvgViewBox = r.viewBoxF();
return;
}
}
mSvgViewBox = QRectF();
return;
}
void QgsSVGFillSymbolLayer::setDefaultSvgParams()
{
//default values
mSvgFillColor = QColor( 0, 0, 0 );
mSvgOutlineColor = QColor( 0, 0, 0 );
mSvgOutlineWidth = 0.3;
if ( mSvgFilePath.isEmpty() )
{
return;
}
bool hasFillParam, hasOutlineParam, hasOutlineWidthParam;
QColor defaultFillColor, defaultOutlineColor;
double defaultOutlineWidth;
QgsSvgCache::instance()->containsParams( mSvgFilePath, hasFillParam, defaultFillColor, hasOutlineParam, defaultOutlineColor, hasOutlineWidthParam,
defaultOutlineWidth );
if ( hasFillParam )
{
mSvgFillColor = defaultFillColor;
}
if ( hasOutlineParam )
{
mSvgOutlineColor = defaultOutlineColor;
}
if ( hasOutlineWidthParam )
{
mSvgOutlineWidth = defaultOutlineWidth;
}
}
QgsLinePatternFillSymbolLayer::QgsLinePatternFillSymbolLayer(): QgsImageFillSymbolLayer()
{
}
QgsLinePatternFillSymbolLayer::~QgsLinePatternFillSymbolLayer()
{
}
QgsSymbolLayerV2* QgsLinePatternFillSymbolLayer::create( const QgsStringMap& properties )
{
QgsLinePatternFillSymbolLayer* patternLayer = new QgsLinePatternFillSymbolLayer();
//default values
double lineAngle = 45;
double distance = 5;
double lineWidth = 0.5;
QColor color( Qt::black );
double offset = 0.0;
if ( properties.contains( "lineangle" ) )
{
lineAngle = properties["lineangle"].toDouble();
}
patternLayer->setLineAngle( lineAngle );
if ( properties.contains( "distance" ) )
{
distance = properties["distance"].toDouble();
}
patternLayer->setDistance( distance );
if ( properties.contains( "linewidth" ) )
{
lineWidth = properties["linewidth"].toDouble();
}
patternLayer->setLineWidth( lineWidth );
if ( properties.contains( "color" ) )
{
color = QgsSymbolLayerV2Utils::decodeColor( properties["color"] );
}
patternLayer->setColor( color );
if ( properties.contains( "offset" ) )
{
offset = properties["offset"].toDouble();
}
patternLayer->setOffset( offset );
return patternLayer;
}
QString QgsLinePatternFillSymbolLayer::layerType() const
{
return "LinePatternFill";
}
void QgsLinePatternFillSymbolLayer::startRender( QgsSymbolV2RenderContext& context )
{
double outlinePixelWidth = context.outputPixelSize( mLineWidth );
double outputPixelDist = context.outputPixelSize( mDistance );
double outputPixelOffset = context.outputPixelSize( mOffset );
//create image
int height, width;
if ( doubleNear( mLineAngle, 0 ) || doubleNear( mLineAngle, 360 ) || doubleNear( mLineAngle, 90 ) || doubleNear( mLineAngle, 180 ) || doubleNear( mLineAngle, 270 ) )
{
height = outputPixelDist;
width = height; //width can be set to arbitrary value
}
else
{
height = qAbs( outputPixelDist / cos( mLineAngle * M_PI / 180 ) ); //keep perpendicular distance between lines constant
width = qAbs( height / tan( mLineAngle * M_PI / 180 ) );
}
//depending on the angle, we might need to render into a larger image and use a subset of it
int dx = 0;
int dy = 0;
QImage patternImage( width, height, QImage::Format_ARGB32 );
patternImage.fill( 0 );
QPainter p( &patternImage );
p.setRenderHint( QPainter::Antialiasing, true );
QPen pen( mColor );
pen.setWidthF( outlinePixelWidth );
pen.setCapStyle( Qt::FlatCap );
p.setPen( pen );
QPoint p1, p2, p3, p4, p5, p6;
if ( doubleNear( mLineAngle, 0.0 ) || doubleNear( mLineAngle, 360.0 ) || doubleNear( mLineAngle, 180.0 ) )
{
p1 = QPoint( 0, height );
p2 = QPoint( width, height );
p3 = QPoint( 0, 0 );
p4 = QPoint( width, 0 );
p5 = QPoint( 0, 2 * height );
p6 = QPoint( width, 2 * height );
}
else if ( doubleNear( mLineAngle, 90.0 ) || doubleNear( mLineAngle, 270.0 ) )
{
p1 = QPoint( 0, height );
p2 = QPoint( 0, 0 );
p3 = QPoint( width, height );
p4 = QPoint( width, 0 );
p5 = QPoint( -width, height );
p6 = QPoint( -width, 0 );
}
else if (( mLineAngle > 0 && mLineAngle < 90 ) || ( mLineAngle > 180 && mLineAngle < 270 ) )
{
dx = outputPixelDist * cos(( 90 - mLineAngle ) * M_PI / 180.0 );
dy = outputPixelDist * sin(( 90 - mLineAngle ) * M_PI / 180.0 );
p1 = QPoint( 0, height );
p2 = QPoint( width, 0 );
p3 = QPoint( -dx, height - dy );
p4 = QPoint( width - dx, -dy ); //p4 = QPoint( p3.x() + width, p3.y() - height );
p5 = QPoint( dx, height + dy );
p6 = QPoint( width + dx, dy ); //p6 = QPoint( p5.x() + width, p5.y() - height );
}
else if (( mLineAngle < 180 ) || ( mLineAngle > 270 && mLineAngle < 360 ) )
{
dy = outputPixelDist * cos(( 180 - mLineAngle ) * M_PI / 180 );
dx = outputPixelDist * sin(( 180 - mLineAngle ) * M_PI / 180 );
p1 = QPoint( width, height );
p2 = QPoint( 0, 0 );
p5 = QPoint( width + dx, height - dy );
p6 = QPoint( p5.x() - width, p5.y() - height ); //p6 = QPoint( dx, -dy );
p3 = QPoint( width - dx, height + dy );
p4 = QPoint( p3.x() - width, p3.y() - height ); //p4 = QPoint( -dx, dy );
}
if ( !doubleNear( mOffset, 0.0 ) ) //shift everything
{
QPointF tempPt;
tempPt = QgsSymbolLayerV2Utils::pointOnLineWithDistance( p1, p3, outputPixelDist + outputPixelOffset );
p3 = QPoint( tempPt.x(), tempPt.y() );
tempPt = QgsSymbolLayerV2Utils::pointOnLineWithDistance( p2, p4, outputPixelDist + outputPixelOffset );
p4 = QPoint( tempPt.x(), tempPt.y() );
tempPt = QgsSymbolLayerV2Utils::pointOnLineWithDistance( p1, p5, outputPixelDist - outputPixelOffset );
p5 = QPoint( tempPt.x(), tempPt.y() );
tempPt = QgsSymbolLayerV2Utils::pointOnLineWithDistance( p2, p6, outputPixelDist - outputPixelOffset );
p6 = QPoint( tempPt.x(), tempPt.y() );
//update p1, p2 last
tempPt = QgsSymbolLayerV2Utils::pointOnLineWithDistance( p1, p3, outputPixelOffset ).toPoint();
p1 = QPoint( tempPt.x(), tempPt.y() );
tempPt = QgsSymbolLayerV2Utils::pointOnLineWithDistance( p2, p4, outputPixelOffset ).toPoint();
p2 = QPoint( tempPt.x(), tempPt.y() );;
}
p.drawLine( p1, p2 );
p.drawLine( p3, p4 );
p.drawLine( p5, p6 );
p.end();
//set image to mBrush
if ( !doubleNear( context.alpha(), 1.0 ) )
{
QImage transparentImage = patternImage.copy();
QgsSymbolLayerV2Utils::multiplyImageOpacity( &transparentImage, context.alpha() );
mBrush.setTextureImage( transparentImage );
}
else
{
mBrush.setTextureImage( patternImage );
}
QTransform brushTransform;
brushTransform.scale( 1.0 / context.renderContext().rasterScaleFactor(), 1.0 / context.renderContext().rasterScaleFactor() );
mBrush.setTransform( brushTransform );
if ( mOutline )
{
mOutline->startRender( context.renderContext() );
}
}
void QgsLinePatternFillSymbolLayer::stopRender( QgsSymbolV2RenderContext & )
{
}
QgsStringMap QgsLinePatternFillSymbolLayer::properties() const
{
QgsStringMap map;
map.insert( "lineangle", QString::number( mLineAngle ) );
map.insert( "distance", QString::number( mDistance ) );
map.insert( "linewidth", QString::number( mLineWidth ) );
map.insert( "color", QgsSymbolLayerV2Utils::encodeColor( mColor ) );
map.insert( "offset", QString::number( mOffset ) );
return map;
}
QgsSymbolLayerV2* QgsLinePatternFillSymbolLayer::clone() const
{
QgsSymbolLayerV2* clonedLayer = QgsLinePatternFillSymbolLayer::create( properties() );
if ( mOutline )
{
clonedLayer->setSubSymbol( mOutline->clone() );
}
return clonedLayer;
}
void QgsLinePatternFillSymbolLayer::toSld( QDomDocument &doc, QDomElement &element, QgsStringMap props ) const
{
QDomElement symbolizerElem = doc.createElement( "se:PolygonSymbolizer" );
if ( !props.value( "uom", "" ).isEmpty() )
symbolizerElem.setAttribute( "uom", props.value( "uom", "" ) );
element.appendChild( symbolizerElem );
// <Geometry>
QgsSymbolLayerV2Utils::createGeometryElement( doc, symbolizerElem, props.value( "geom", "" ) );
QDomElement fillElem = doc.createElement( "se:Fill" );
symbolizerElem.appendChild( fillElem );
QDomElement graphicFillElem = doc.createElement( "se:GraphicFill" );
fillElem.appendChild( graphicFillElem );
QDomElement graphicElem = doc.createElement( "se:Graphic" );
graphicFillElem.appendChild( graphicElem );
QgsSymbolLayerV2Utils::wellKnownMarkerToSld( doc, graphicElem, "horline", QColor(), mColor, mLineWidth, mDistance );
// <Rotation>
QString angleFunc;
bool ok;
double angle = props.value( "angle", "0" ).toDouble( &ok );
if ( !ok )
{
angleFunc = QString( "%1 + %2" ).arg( props.value( "angle", "0" ) ).arg( mLineAngle );
}
else if ( angle + mLineAngle != 0 )
{
angleFunc = QString::number( angle + mLineAngle );
}
QgsSymbolLayerV2Utils::createRotationElement( doc, graphicElem, angleFunc );
// <se:Displacement>
QPointF lineOffset( sin( mLineAngle ) * mOffset, cos( mLineAngle ) * mOffset );
QgsSymbolLayerV2Utils::createDisplacementElement( doc, graphicElem, lineOffset );
if ( mOutline )
{
// the outline sub symbol should be stored within the Stroke element,
// but it will be stored in a separated LineSymbolizer because it could
// have more than one layer
mOutline->toSld( doc, element, props );
}
}
QgsSymbolLayerV2* QgsLinePatternFillSymbolLayer::createFromSld( QDomElement &element )
{
QgsDebugMsg( "Entered." );
QString name;
QColor fillColor, lineColor;
double size, lineWidth;
QDomElement fillElem = element.firstChildElement( "Fill" );
if ( fillElem.isNull() )
return NULL;
QDomElement graphicFillElem = fillElem.firstChildElement( "GraphicFill" );
if ( graphicFillElem.isNull() )
return NULL;
QDomElement graphicElem = graphicFillElem.firstChildElement( "Graphic" );
if ( graphicElem.isNull() )
return NULL;
if ( !QgsSymbolLayerV2Utils::wellKnownMarkerFromSld( graphicElem, name, fillColor, lineColor, lineWidth, size ) )
return NULL;
if ( name != "horline" )
return NULL;
double angle = 0.0;
QString angleFunc;
if ( QgsSymbolLayerV2Utils::rotationFromSldElement( graphicElem, angleFunc ) )
{
bool ok;
double d = angleFunc.toDouble( &ok );
if ( ok )
angle = d;
}
double offset = 0.0;
QPointF vectOffset;
if ( QgsSymbolLayerV2Utils::displacementFromSldElement( graphicElem, vectOffset ) )
{
offset = sqrt( pow( vectOffset.x(), 2 ) + pow( vectOffset.y(), 2 ) );
}
QgsLinePatternFillSymbolLayer* sl = new QgsLinePatternFillSymbolLayer();
sl->setColor( lineColor );
sl->setLineWidth( lineWidth );
sl->setLineAngle( angle );
sl->setOffset( offset );
sl->setDistance( size );
// try to get the outline
QDomElement strokeElem = element.firstChildElement( "Stroke" );
if ( !strokeElem.isNull() )
{
QgsSymbolLayerV2 *l = QgsSymbolLayerV2Utils::createLineLayerFromSld( strokeElem );
if ( l )
{
QgsSymbolLayerV2List layers;
layers.append( l );
sl->setSubSymbol( new QgsLineSymbolV2( layers ) );
}
}
return sl;
}
////////////////////////
QgsPointPatternFillSymbolLayer::QgsPointPatternFillSymbolLayer(): QgsImageFillSymbolLayer(), mMarkerSymbol( 0 ), mDistanceX( 15 ),
mDistanceY( 15 ), mDisplacementX( 0 ), mDisplacementY( 0 )
{
mDistanceX = 15;
mDistanceY = 15;
mDisplacementX = 0;
mDisplacementY = 0;
setSubSymbol( new QgsMarkerSymbolV2() );
QgsImageFillSymbolLayer::setSubSymbol( 0 ); //no outline
}
QgsPointPatternFillSymbolLayer::~QgsPointPatternFillSymbolLayer()
{
}
QgsSymbolLayerV2* QgsPointPatternFillSymbolLayer::create( const QgsStringMap& properties )
{
QgsPointPatternFillSymbolLayer* layer = new QgsPointPatternFillSymbolLayer();
if ( properties.contains( "distance_x" ) )
{
layer->setDistanceX( properties["distance_x"].toDouble() );
}
if ( properties.contains( "distance_y" ) )
{
layer->setDistanceY( properties["distance_y"].toDouble() );
}
if ( properties.contains( "displacement_x" ) )
{
layer->setDisplacementX( properties["displacement_x"].toDouble() );
}
if ( properties.contains( "displacement_y" ) )
{
layer->setDisplacementY( properties["displacement_y"].toDouble() );
}
return layer;
}
QString QgsPointPatternFillSymbolLayer::layerType() const
{
return "PointPatternFill";
}
void QgsPointPatternFillSymbolLayer::startRender( QgsSymbolV2RenderContext& context )
{
//render 3 rows and columns in one go to easily incorporate displacement
double width = context.outputPixelSize( mDistanceX ) * 2.0;
double height = context.outputPixelSize( mDistanceY ) * 2.0;
QImage patternImage( width, height, QImage::Format_ARGB32 );
patternImage.fill( 0 );
if ( mMarkerSymbol )