19#include "moc_qgssvgannotation.cpp"
25#include <QDomDocument>
39 c->setFilePath( mFilePath );
46 QDomElement svgAnnotationElem = doc.createElement( QStringLiteral(
"SVGAnnotationItem" ) );
47 svgAnnotationElem.setAttribute( QStringLiteral(
"file" ),
filePath );
48 _writeXml( svgAnnotationElem, doc, context );
49 elem.appendChild( svgAnnotationElem );
56 const QDomElement annotationElem = itemElem.firstChildElement( QStringLiteral(
"AnnotationItem" ) );
57 if ( !annotationElem.isNull() )
65 QPainter *painter = context.
painter();
72 const QRect viewBox = mSvgRenderer.viewBox();
73 if ( viewBox.isValid() )
75 const double widthRatio = size.width() / viewBox.width();
76 const double heightRatio = size.height() / viewBox.height();
77 double renderWidth = 0;
78 double renderHeight = 0;
79 if ( widthRatio <= heightRatio )
81 renderWidth = size.width();
82 renderHeight = viewBox.height() * widthRatio;
86 renderHeight = size.height();
87 renderWidth = viewBox.width() * heightRatio;
90 mSvgRenderer.render( painter, QRectF( 0, 0, renderWidth,
98 mSvgRenderer.load( mFilePath );
Abstract base class for annotation items which are drawn over a map.
void appearanceChanged()
Emitted whenever the annotation's appearance changes.
void _writeXml(QDomElement &itemElem, QDomDocument &doc, const QgsReadWriteContext &context) const
Writes common annotation properties to a DOM element.
void _readXml(const QDomElement &annotationElem, const QgsReadWriteContext &context)
Reads common annotation properties from a DOM element.
void copyCommonProperties(QgsAnnotation *target) const
Copies common annotation properties to the targe annotation.
bool isCanceled() const
Tells whether the operation has been canceled already.
The class is used as a container of context for various read/write operations on other objects.
const QgsPathResolver & pathResolver() const
Returns path resolver for conversion between relative and absolute paths.
Contains information about the context of a rendering operation.
QPainter * painter()
Returns the destination QPainter for the render operation.
QgsFeedback * feedback() const
Returns the feedback object that can be queried regularly during rendering to check if rendering shou...
An annotation which renders the contents of an SVG file.
QgsSvgAnnotation(QObject *parent=nullptr)
Constructor for QgsSvgAnnotation.
void renderAnnotation(QgsRenderContext &context, QSizeF size) const override
Renders the annotation's contents to a target /a context at the specified /a size.
void setFilePath(const QString &file)
Sets the file path for the source SVG file.
QString filePath() const
Returns the file path for the source SVG file.
void writeXml(QDomElement &elem, QDomDocument &doc, const QgsReadWriteContext &context) const override
Writes the annotation state to a DOM element.
void readXml(const QDomElement &itemElem, const QgsReadWriteContext &context) override
Restores the annotation's state from a DOM element.
QgsSvgAnnotation * clone() const override
Clones the annotation, returning a new copy of the annotation reflecting the annotation's current sta...
static QString svgSymbolPathToName(const QString &path, const QgsPathResolver &pathResolver)
Determines an SVG symbol's name from its path.
static QString svgSymbolNameToPath(const QString &name, const QgsPathResolver &pathResolver)
Determines an SVG symbol's path from its name.
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into c