46 mProject->disconnect(
this );
80 return mMapSettings.
extent();
207 return mMapSettings.
layers();
216 void QgsQuickMapSettings::onCrsChanged()
221 void QgsQuickMapSettings::onReadProject(
const QDomDocument &doc )
225 int red = mProject->
readNumEntry( QStringLiteral(
"Gui" ), QStringLiteral(
"/CanvasColorRedPart" ), 255 );
226 int green = mProject->
readNumEntry( QStringLiteral(
"Gui" ), QStringLiteral(
"/CanvasColorGreenPart" ), 255 );
227 int blue = mProject->
readNumEntry( QStringLiteral(
"Gui" ), QStringLiteral(
"/CanvasColorBluePart" ), 255 );
231 QDomNodeList nodes = doc.elementsByTagName(
"mapcanvas" );
232 bool foundTheMapCanvas =
false;
233 for (
int i = 0; i < nodes.size(); i++ )
235 QDomNode node = nodes.item( 0 );
236 QDomElement element = node.toElement();
238 if ( element.hasAttribute( QStringLiteral(
"name" ) ) && element.attribute( QStringLiteral(
"name" ) ) == QLatin1String(
"theMapCanvas" ) )
240 foundTheMapCanvas =
true;
247 if ( !foundTheMapCanvas )
292 return mDevicePixelRatio;
This class represents a coordinate reference system (CRS).
Contains information about the context in which a coordinate transform is executed.
Base class for all map layer types.
virtual QgsRectangle extent() const
Returns the extent of the layer.
The QgsMapSettings class contains configuration for rendering of the map.
QgsPointXY layerToMapCoordinates(const QgsMapLayer *layer, QgsPointXY point) const
transform point coordinates from layer's CRS to output CRS
void setLayers(const QList< QgsMapLayer * > &layers)
Sets the list of layers to render in the map.
QColor backgroundColor() const
Returns the background color of the map.
void setOutputDpi(double dpi)
Sets the dpi (dots per inch) used for conversion between real world units (e.g.
double mapUnitsPerPixel() const
Returns the distance in geographical coordinates that equals to one pixel in the map.
QSize outputSize() const
Returns the size of the resulting map image, in pixels.
QgsRectangle extent() const
Returns geographical coordinates of the rectangle that should be rendered.
void setExtent(const QgsRectangle &rect, bool magnified=true)
Sets the coordinates of the rectangle which should be rendered.
const QgsMapToPixel & mapToPixel() const
QgsRectangle visibleExtent() const
Returns the actual extent derived from requested extent that takes output image size into account.
void setTransformContext(const QgsCoordinateTransformContext &context)
Sets the coordinate transform context, which stores various information regarding which datum transfo...
void setRotation(double rotation)
Sets the rotation of the resulting map image, in degrees clockwise.
QList< QgsMapLayer * > layers() const
Returns the list of layers which will be rendered in the map.
void setPathResolver(const QgsPathResolver &resolver)
Sets the path resolver for conversion between relative and absolute paths during rendering operations...
double outputDpi() const
Returns the DPI (dots per inch) used for conversion between real world units (e.g.
double rotation() const
Returns the rotation of the resulting map image, in degrees clockwise.
void setOutputSize(QSize size)
Sets the size of the resulting map image, in pixels.
void setBackgroundColor(const QColor &color)
Sets the background color of the map.
QgsCoordinateReferenceSystem destinationCrs() const
Returns the destination coordinate reference system for the map render.
void setDestinationCrs(const QgsCoordinateReferenceSystem &crs)
Sets the destination crs (coordinate reference system) for the map render.
void readXml(QDomNode &node)
QgsCoordinateTransformContext transformContext() const
Returns the coordinate transform context, which stores various information regarding which datum tran...
QgsPointXY toMapCoordinates(int x, int y) const
Transforms device coordinates to map (world) coordinates.
QgsPointXY transform(const QgsPointXY &p) const
Transforms a point p from map (world) coordinates to device coordinates.
static void logMessage(const QString &message, const QString &tag=QString(), Qgis::MessageLevel level=Qgis::MessageLevel::Warning, bool notifyUser=true)
Adds a message to the log instance (and creates it if necessary).
A class to represent a 2D point.
void setX(double x) SIP_HOLDGIL
Sets the x value of the point.
void setY(double y) SIP_HOLDGIL
Sets the y value of the point.
QPointF toQPointF() const
Converts a point to a QPointF.
Point geometry type, with support for z-dimension and m-values.
QgsReferencedRectangle fullExtent() const
Returns the full extent of the project, which represents the maximal limits of the project.
Encapsulates a QGIS project, including sets of map layers and their styles, layouts,...
int readNumEntry(const QString &scope, const QString &key, int def=0, bool *ok=nullptr) const
Reads an integer from the specified scope and key.
QgsPathResolver pathResolver() const
Returns path resolver object with considering whether the project uses absolute or relative paths and...
void crsChanged()
Emitted when the CRS of the project has changed.
QgsCoordinateTransformContext transformContext
void readProject(const QDomDocument &)
Emitted when a project is being read.
QgsCoordinateReferenceSystem crs
const QgsProjectViewSettings * viewSettings() const
Returns the project's view settings, which contains settings and properties relating to how a QgsProj...
double outputDpi
Output DPI used for conversion between real world units (e.g.
QgsQuickMapSettings(QObject *parent=nullptr)
Create new map settings.
void setOutputSize(QSize outputSize)
Sets the size of the resulting map image, in pixels.
void setRotation(double rotation)
The rotation of the resulting map image, in degrees clockwise.
void setTransformContext(const QgsCoordinateTransformContext &context)
Sets the coordinate transform context, which stores various information regarding which datum transfo...
void extentChanged()
Geographical coordinates of the rectangle that should be rendered.
double rotation
The rotation of the resulting map image, in degrees clockwise.
QgsRectangle extent
Geographical coordinates of the rectangle that should be rendered.
void outputSizeChanged()
The size of the resulting map image.
void projectChanged()
A project property should be used as a primary source of project all other components in the applicat...
Q_INVOKABLE QgsCoordinateTransformContext transformContext() const
Returns the coordinate transform context, which stores various information regarding which datum tran...
QgsRectangle visibleExtent
Returns the actual extent derived from requested extent that takes output image size into account.
void outputDpiChanged()
Output DPI used for conversion between real world units (e.g.
void layersChanged()
Set list of layers for map rendering.
void destinationCrsChanged()
CRS of destination coordinate reference system.
void visibleExtentChanged()
Returns the actual extent derived from requested extent that takes output image size into account.
void setExtent(const QgsRectangle &extent)
Sets the coordinates of the rectangle which should be rendered.
Q_INVOKABLE QgsPoint screenToCoordinate(const QPointF &point) const
Convert a screen coordinate to a map coordinate.
Q_INVOKABLE void setCenter(const QgsPoint ¢er)
Move current map extent to have center point defined by center.
void devicePixelRatioChanged()
Returns the ratio between physical pixels and device-independent pixels.
QColor backgroundColor
The background color used to render the map.
double mapUnitsPerPixel
Returns the distance in geographical coordinates that equals to one pixel in the map.
void setDevicePixelRatio(const qreal &devicePixelRatio)
Sets the ratio between physical pixels and device-independent pixels.
double mapUnitsPerPoint
Returns the distance in geographical coordinates that equals to one point unit in the map.
QgsMapSettings mapSettings() const
Clone map settings.
void setProject(QgsProject *project)
A project property should be used as a primary source of project all other components in the applicat...
void mapUnitsPerPixelChanged()
Returns the distance in geographical coordinates that equals to one pixel in the map.
void setOutputDpi(double outputDpi)
Sets the dpi (dots per inch) used for conversion between real world units (e.g.
qreal devicePixelRatio() const
Returns the ratio between physical pixels and device-independent pixels.
void setLayers(const QList< QgsMapLayer * > &layers)
Sets the list of layers to render in the map.
Q_INVOKABLE void setCenterToLayer(QgsMapLayer *layer, bool shouldZoom=true)
Move current map extent to have center point defined by layer. Optionally only pan to the layer if sh...
QgsCoordinateReferenceSystem destinationCrs
CRS of destination coordinate reference system.
QList< QgsMapLayer * > layers
Set list of layers for map rendering.
void setDestinationCrs(const QgsCoordinateReferenceSystem &destinationCrs)
Sets the destination crs (coordinate reference system) for the map render.
QSize outputSize
The size of the resulting map image.
void backgroundColorChanged()
The background color used to render the map.
void rotationChanged()
The rotation of the resulting map image, in degrees clockwise.
Q_INVOKABLE QPointF coordinateToScreen(const QgsPoint &point) const
Convert a map coordinate to screen pixel coordinates.
QgsProject * project
A project property should be used as a primary source of project all other components in the applicat...
void setBackgroundColor(const QColor &color)
The background color used to render the map.
A rectangle specified with double values.
double yMaximum() const SIP_HOLDGIL
Returns the y maximum value (top side of rectangle).
double xMaximum() const SIP_HOLDGIL
Returns the x maximum value (right side of rectangle).
double xMinimum() const SIP_HOLDGIL
Returns the x minimum value (left side of rectangle).
double yMinimum() const SIP_HOLDGIL
Returns the y minimum value (bottom side of rectangle).
void setYMinimum(double y) SIP_HOLDGIL
Set the minimum y value.
void setXMaximum(double x) SIP_HOLDGIL
Set the maximum x value.
void setXMinimum(double x) SIP_HOLDGIL
Set the minimum x value.
void setYMaximum(double y) SIP_HOLDGIL
Set the maximum y value.
bool isEmpty() const
Returns true if the rectangle is empty.
QgsPointXY center() const SIP_HOLDGIL
Returns the center point of the rectangle.
A class to represent a vector.
double y() const SIP_HOLDGIL
Returns the vector's y-component.
double x() const SIP_HOLDGIL
Returns the vector's x-component.
bool qgsDoubleNear(double a, double b, double epsilon=4 *std::numeric_limits< double >::epsilon())
Compare two doubles (but allow some difference)