#include <qgsmaplayer.h>
Inheritance diagram for QgsMapLayer:
This is the base class for all map layer types (vector, raster).
Definition at line 41 of file qgsmaplayer.h.
Public Types | |
| enum | LayerType { VectorLayer, RasterLayer } |
| Layers enum defining the types of layers that can be added to a map. More... | |
Public Slots | |
| virtual void | invalidTransformInput () |
| Event handler for when a coordinate transform fails due to bad vertex error. | |
| void | setMinimumScale (float theMinScale) |
| Accessor and mutator for the minimum scale member. | |
| float | minimumScale () |
| void | setMaximumScale (float theMaxScale) |
| Accessor and mutator for the maximum scale member. | |
| float | maximumScale () |
| void | toggleScaleBasedVisibility (bool theVisibilityFlag) |
| Accessor and mutator for the scale based visilibility flag. | |
| bool | hasScaleBasedVisibility () |
Signals | |
| void | drawingProgress (int theProgress, int theTotalSteps) |
| Emit a signal to notify of a progress event. | |
| void | statusChanged (QString theStatus) |
| Emit a signal with status (e.g. | |
| void | layerNameChanged () |
| Emit a signal that layer name has been changed. | |
| void | repaintRequested () |
| This signal should be connected with the slot QgsMapCanvas::refresh() : to be removed - GUI dependency. | |
| void | screenUpdateRequested () |
| The layer emits this signal when a screen update is requested. | |
| void | recalculateExtents () |
| This is used to send a request that any mapcanvas using this layer update its extents. | |
Public Member Functions | |
| QgsMapLayer (QgsMapLayer::LayerType type=VectorLayer, QString lyrname=QString::null, QString source=QString::null) | |
| Constructor. | |
| virtual | ~QgsMapLayer () |
| Destructor. | |
| QgsMapLayer::LayerType | type () const |
| Get the type of the layer. | |
| QString | getLayerID () const |
| Get this layer's unique ID, this ID is used to access this layer from map layer registry. | |
| void | setLayerName (const QString &name) |
| Set the display name of the layer. | |
| QString const & | name () const |
| Get the display name of the layer. | |
| virtual bool | draw (QgsRenderContext &rendererContext) |
| virtual void | drawLabels (QgsRenderContext &rendererContext) |
| Draw labels to be removed: used only in vector layers. | |
| QgsRectangle | extent () const |
| Return the extent of the layer as a QRect. | |
| bool | isValid () |
| QString | publicSource () const |
| QString const & | source () const |
| Returns the source for the layer. | |
| virtual QStringList | subLayers () |
| Returns the sublayers of this layer (Useful for providers that manage their own layers, such as WMS). | |
| virtual void | setLayerOrder (QStringList layers) |
| Reorders the *previously selected* sublayers of this layer from bottom to top (Useful for providers that manage their own layers, such as WMS). | |
| virtual void | setSubLayerVisibility (QString name, bool vis) |
| Set the visibility of the given sublayer name. | |
| virtual bool | isEditable () const=0 |
| True if the layer can be edited. | |
| bool | readXML (QDomNode &layer_node) |
| sets state from Dom document | |
| bool | writeXML (QDomNode &layer_node, QDomDocument &document) |
| stores state in Dom node | |
| virtual bool | copySymbologySettings (const QgsMapLayer &other)=0 |
| Copies the symbology settings from another layer. | |
| virtual bool | hasCompatibleSymbology (const QgsMapLayer &other) const=0 |
| Returns true if this layer can be in the same symbology group with another layer. | |
| unsigned int | getTransparency () |
| Accessor for transparency level. | |
| void | setTransparency (unsigned int) |
| Mutator for transparency level. | |
| virtual QString | lastErrorTitle () |
| If an operation returns 0 (e.g. | |
| virtual QString | lastError () |
| If an operation returns 0 (e.g. | |
| const QgsCoordinateReferenceSystem & | srs () |
| Returns layer's spatial reference system. | |
| void | setCrs (const QgsCoordinateReferenceSystem &srs) |
| Sets layer's spatial reference system. | |
| virtual QString | loadDefaultStyle (bool &theResultFlag) |
| Retrieve the default style for this layer if one exists (either as a .qml file on disk or as a record in the users style table in their personal qgis.db). | |
| virtual QString | loadNamedStyle (const QString theURI, bool &theResultFlag) |
| Retrieve a named style for this layer if one exists (either as a .qml file on disk or as a record in the users style table in their personal qgis.db). | |
| virtual bool | loadNamedStyleFromDb (const QString db, const QString theURI, QString &qml) |
| virtual QString | saveDefaultStyle (bool &theResultFlag) |
| Save the properties of this layer as the default style (either as a .qml file on disk or as a record in the users style table in their personal qgis.db). | |
| virtual QString | saveNamedStyle (const QString theURI, bool &theResultFlag) |
| Save the properties of this layer as a named style (either as a .qml file on disk or as a record in the users style table in their personal qgis.db). | |
| virtual bool | readSymbology (const QDomNode &node, QString &errorMessage)=0 |
| Read the symbology for the current layer from the Dom node supplied. | |
| virtual bool | writeSymbology (QDomNode &, QDomDocument &doc, QString &errorMessage) const=0 |
| Write the symbology for the layer into the docment provided. | |
Static Public Member Functions | |
| static QString | capitaliseLayerName (const QString name) |
| A convenience function to capitalise the layer name. | |
Protected Member Functions | |
| virtual bool | readXml (QDomNode &layer_node) |
| called by readXML(), used by children to read state specific to them from project files. | |
| virtual bool | writeXml (QDomNode &layer_node, QDomDocument &document) |
| called by writeXML(), used by children to write state specific to them to project files. | |
| void | connectNotify (const char *signal) |
| debugging member - invoked when a connect() is made to this object | |
Protected Attributes | |
| unsigned int | mTransparencyLevel |
| Transparency level for this layer should be 0-255 (255 being opaque). | |
| QgsRectangle | mLayerExtent |
| Extent of the layer. | |
| bool | mValid |
| Indicates if the layer is valid and can be drawn. | |
| QString | mDataSource |
| data source description string, varies by layer type | |
| QString | mLayerName |
| Name of the layer - used for display. | |
| QgsCoordinateReferenceSystem * | mCRS |
| layer's Spatial reference system | |
Private Member Functions | |
| QgsMapLayer (QgsMapLayer const &) | |
| private copy constructor - QgsMapLayer not copyable | |
| QgsMapLayer & | operator= (QgsMapLayer const &) |
| private assign operator - QgsMapLayer not copyable | |
Private Attributes | |
| QString | mID |
| Unique ID of this layer - used to refer to this layer in map layer registry. | |
| QgsMapLayer::LayerType | mLayerType |
| Type of the layer (eg. | |
| QString | mTag |
| Tag for embedding additional information. | |
| float | mMinScale |
| Minimum scale at which this layer should be displayed. | |
| float | mMaxScale |
| Maximum scale at which this layer should be displayed. | |
| bool | mScaleBasedVisibility |
| A flag that tells us whether to use the above vars to restrict layer visibility. | |
Layers enum defining the types of layers that can be added to a map.
Reimplemented in QgsRasterLayer.
Definition at line 47 of file qgsmaplayer.h.
| QgsMapLayer::QgsMapLayer | ( | QgsMapLayer::LayerType | type = VectorLayer, |
|
| QString | lyrname = QString::null, |
|||
| QString | source = QString::null | |||
| ) |
Constructor.
| type | Type of layer as defined in QgsMapLayer::LayerType enum | |
| lyrname | Display Name of the layer |
Definition at line 43 of file qgsmaplayer.cpp.
References capitaliseLayerName(), mCRS, mID, mLayerName, mMaxScale, mMinScale, mScaleBasedVisibility, and QgsDebugMsg.
| QgsMapLayer::~QgsMapLayer | ( | ) | [virtual] |
| QgsMapLayer::QgsMapLayer | ( | QgsMapLayer const & | ) | [private] |
private copy constructor - QgsMapLayer not copyable
| QgsMapLayer::LayerType QgsMapLayer::type | ( | ) | const |
Get the type of the layer.
Definition at line 85 of file qgsmaplayer.cpp.
References mLayerType.
Referenced by QgsLegendModel::addLayer(), QgsRasterLayer::copySymbologySettings(), QgsVectorLayer::geometryType(), QgsRasterLayer::hasCompatibleSymbology(), QgsVectorLayer::hasCompatibleSymbology(), QgsRasterLayer::identify(), QgsRasterLayer::readData(), QgsMapRenderer::render(), QgsLegendModel::setLayerSet(), and QgsLegendModel::updateLayer().
| QString QgsMapLayer::getLayerID | ( | ) | const |
Get this layer's unique ID, this ID is used to access this layer from map layer registry.
Definition at line 91 of file qgsmaplayer.cpp.
References mID.
Referenced by QgsLegendModel::addLayer(), QgsMapLayerRegistry::addMapLayer(), QgsLegendModel::setLayerSet(), and writeXML().
| void QgsMapLayer::setLayerName | ( | const QString & | name | ) |
Set the display name of the layer.
| name | New name for the layer |
Definition at line 97 of file qgsmaplayer.cpp.
References capitaliseLayerName(), layerNameChanged(), mLayerName, and QgsDebugMsg.
Referenced by QgsRasterLayer::QgsRasterLayer(), readXML(), and QgsVectorLayer::setDataProvider().
| QString const & QgsMapLayer::name | ( | ) | const |
Get the display name of the layer.
Definition at line 105 of file qgsmaplayer.cpp.
References mLayerName, and QgsDebugMsg.
Referenced by QgsLegendModel::addLayer(), QgsRasterLayer::bandStatistics(), QgsVectorLayer::commitChanges(), QgsVectorLayer::editType(), QgsVectorLayer::hasCompatibleSymbology(), QgsRasterLayer::legendAsPixmap(), QgsQuickPrint::printMap(), QgsRasterLayer::readData(), QgsVectorLayer::readSymbology(), QgsMapRenderer::render(), QgsRasterLayer::setDataProvider(), QgsVectorLayer::setDataProvider(), QgsVectorLayer::setEditType(), QgsLegendModel::setLayerSet(), QgsMapCanvas::showError(), QgsVectorLayer::writeSymbology(), and writeXML().
| bool QgsMapLayer::draw | ( | QgsRenderContext & | rendererContext | ) | [virtual] |
Reimplemented in QgsVectorLayer, and QgsRasterLayer.
Definition at line 131 of file qgsmaplayer.cpp.
| void QgsMapLayer::drawLabels | ( | QgsRenderContext & | rendererContext | ) | [virtual] |
Draw labels to be removed: used only in vector layers.
Reimplemented in QgsVectorLayer.
Definition at line 136 of file qgsmaplayer.cpp.
Referenced by QgsMapRenderer::render().
| QgsRectangle QgsMapLayer::extent | ( | ) | const |
Return the extent of the layer as a QRect.
Definition at line 126 of file qgsmaplayer.cpp.
References mLayerExtent.
Referenced by QgsMapRenderer::render().
| bool QgsMapLayer::isValid | ( | ) |
Return the status of the layer. An invalid layer is one which has a bad datasource or other problem. Child classes set this flag when intialized
Definition at line 314 of file qgsmaplayer.cpp.
References mValid.
Referenced by QgsMapLayerRegistry::addMapLayer(), QgsRasterLayer::readFile(), and QgsProjectFileTransform::transform0110to1000().
| QString QgsMapLayer::publicSource | ( | ) | const |
Gets a version of the internal layer definition that has sensitive bits removed (for example, the password). This function should be used when displaying the source name for general viewing.
Definition at line 111 of file qgsmaplayer.cpp.
References mDataSource.
Referenced by loadDefaultStyle(), and saveDefaultStyle().
| QString const & QgsMapLayer::source | ( | ) | const |
Returns the source for the layer.
Definition at line 121 of file qgsmaplayer.cpp.
References mDataSource.
Referenced by QgsRasterLayer::readXml(), QgsRasterLayer::update(), and writeXML().
| QStringList QgsMapLayer::subLayers | ( | ) | [virtual] |
Returns the sublayers of this layer (Useful for providers that manage their own layers, such as WMS).
Definition at line 376 of file qgsmaplayer.cpp.
| void QgsMapLayer::setLayerOrder | ( | QStringList | layers | ) | [virtual] |
Reorders the *previously selected* sublayers of this layer from bottom to top (Useful for providers that manage their own layers, such as WMS).
Definition at line 381 of file qgsmaplayer.cpp.
| void QgsMapLayer::setSubLayerVisibility | ( | QString | name, | |
| bool | vis | |||
| ) | [virtual] |
| virtual bool QgsMapLayer::isEditable | ( | ) | const [pure virtual] |
| bool QgsMapLayer::readXML | ( | QDomNode & | layer_node | ) |
sets state from Dom document
| layer_node | is Dom node corresponding to ``maplayer'' tag |
This, in turn, calls readXml(), which is over-rideable by sub-classes so that they can read their own specific state from the given Dom node.
Invoked by QgsProject::read().
Definition at line 141 of file qgsmaplayer.cpp.
References QgsCoordinateReferenceSystem::customSrsValidation(), hasScaleBasedVisibility(), mCRS, mDataSource, mID, readXml(), QgsCoordinateReferenceSystem::readXML(), QgsCoordinateReferenceSystem::setCustomSrsValidation(), setLayerName(), setMaximumScale(), setMinimumScale(), setTransparency(), toggleScaleBasedVisibility(), and QgsCoordinateReferenceSystem::validate().
Referenced by _getMapLayers(), QgsProject::read(), and QgsLegendModel::readXML().
| bool QgsMapLayer::writeXML | ( | QDomNode & | layer_node, | |
| QDomDocument & | document | |||
| ) |
stores state in Dom node
| layer_node | is Dom node corresponding to ``projectlayers'' tag |
This, in turn, calls writeXml(), which is over-rideable by sub-classes so that they can write their own specific state to the given Dom node.
Invoked by QgsProject::write().
Definition at line 241 of file qgsmaplayer.cpp.
References getLayerID(), getTransparency(), hasScaleBasedVisibility(), maximumScale(), mCRS, minimumScale(), name(), source(), writeXml(), and QgsCoordinateReferenceSystem::writeXML().
| virtual bool QgsMapLayer::copySymbologySettings | ( | const QgsMapLayer & | other | ) | [pure virtual] |
Copies the symbology settings from another layer.
Returns true in case of success
Implemented in QgsVectorLayer, and QgsRasterLayer.
| virtual bool QgsMapLayer::hasCompatibleSymbology | ( | const QgsMapLayer & | other | ) | const [pure virtual] |
Returns true if this layer can be in the same symbology group with another layer.
Implemented in QgsVectorLayer, and QgsRasterLayer.
| unsigned int QgsMapLayer::getTransparency | ( | ) |
Accessor for transparency level.
Definition at line 401 of file qgsmaplayer.cpp.
References mTransparencyLevel.
Referenced by writeXML().
| void QgsMapLayer::setTransparency | ( | unsigned | int | ) |
Mutator for transparency level.
Should be between 0 and 255
Definition at line 406 of file qgsmaplayer.cpp.
References mTransparencyLevel.
Referenced by readXML().
| QString QgsMapLayer::lastErrorTitle | ( | ) | [virtual] |
If an operation returns 0 (e.g.
draw()), this function returns the text of the error associated with the failure. Interactive users of this provider can then, for example, call a QMessageBox to display the contents.
Reimplemented in QgsRasterLayer.
Definition at line 327 of file qgsmaplayer.cpp.
Referenced by QgsMapCanvas::showError().
| QString QgsMapLayer::lastError | ( | ) | [virtual] |
If an operation returns 0 (e.g.
draw()), this function returns the text of the error associated with the failure. Interactive users of this provider can then, for example, call a QMessageBox to display the contents.
Reimplemented in QgsRasterLayer.
Definition at line 332 of file qgsmaplayer.cpp.
Referenced by QgsMapCanvas::showError().
| const QgsCoordinateReferenceSystem & QgsMapLayer::srs | ( | ) |
Returns layer's spatial reference system.
Definition at line 391 of file qgsmaplayer.cpp.
References mCRS.
Referenced by QgsMapRenderer::layerExtentToOutputExtent(), QgsMapRenderer::layerToMapCoordinates(), QgsMapRenderer::mapToLayerCoordinates(), QgsRasterLayer::readXml(), QgsMapRenderer::render(), setCrs(), QgsMapRenderer::splitLayersExtent(), and QgsVectorFileWriter::writeAsShapefile().
| void QgsMapLayer::setCrs | ( | const QgsCoordinateReferenceSystem & | srs | ) |
| QString QgsMapLayer::capitaliseLayerName | ( | const QString | name | ) | [static] |
A convenience function to capitalise the layer name.
Definition at line 411 of file qgsmaplayer.cpp.
Referenced by QgsMapLayer(), and setLayerName().
| QString QgsMapLayer::loadDefaultStyle | ( | bool & | theResultFlag | ) | [virtual] |
Retrieve the default style for this layer if one exists (either as a .qml file on disk or as a record in the users style table in their personal qgis.db).
| a | reference to a flag that will be set to false if we did not manage to load the default style. |
Definition at line 426 of file qgsmaplayer.cpp.
References loadNamedStyle(), and publicSource().
Referenced by QgsRasterLayer::QgsRasterLayer(), and QgsVectorLayer::QgsVectorLayer().
| QString QgsMapLayer::loadNamedStyle | ( | const QString | theURI, | |
| bool & | theResultFlag | |||
| ) | [virtual] |
Retrieve a named style for this layer if one exists (either as a .qml file on disk or as a record in the users style table in their personal qgis.db).
| QString | theURI - the file name or other URI for the style file. First an attempt will be made to see if this is a file and load that, if that fails the qgis.db styles table will be consulted to see if there is a style who's key matches the URI. | |
| a | reference to a flag that will be set to false if we did not manage to load the default style. |
Definition at line 485 of file qgsmaplayer.cpp.
References QgsProject::instance(), loadNamedStyleFromDb(), QgsApplication::pkgDataPath(), QgsApplication::qgisSettingsDirPath(), QgsDebugMsg, and readSymbology().
Referenced by loadDefaultStyle().
| bool QgsMapLayer::loadNamedStyleFromDb | ( | const QString | db, | |
| const QString | theURI, | |||
| QString & | qml | |||
| ) | [virtual] |
Definition at line 443 of file qgsmaplayer.cpp.
References QgsDebugMsg.
Referenced by loadNamedStyle().
| QString QgsMapLayer::saveDefaultStyle | ( | bool & | theResultFlag | ) | [virtual] |
Save the properties of this layer as the default style (either as a .qml file on disk or as a record in the users style table in their personal qgis.db).
| a | reference to a flag that will be set to false if we did not manage to save the default style. |
Definition at line 552 of file qgsmaplayer.cpp.
References publicSource(), and saveNamedStyle().
| QString QgsMapLayer::saveNamedStyle | ( | const QString | theURI, | |
| bool & | theResultFlag | |||
| ) | [virtual] |
Save the properties of this layer as a named style (either as a .qml file on disk or as a record in the users style table in their personal qgis.db).
| QString | theURI - the file name or other URI for the style file. First an attempt will be made to see if this is a file and save to that, if that fails the qgis.db styles table will be used to create a style entry who's key matches the URI. | |
| a | reference to a flag that will be set to false if we did not manage to save the default style. |
Definition at line 557 of file qgsmaplayer.cpp.
References QGis::QGIS_VERSION, QgsApplication::qgisSettingsDirPath(), and writeSymbology().
Referenced by saveDefaultStyle().
| virtual bool QgsMapLayer::readSymbology | ( | const QDomNode & | node, | |
| QString & | errorMessage | |||
| ) | [pure virtual] |
Read the symbology for the current layer from the Dom node supplied.
| QDomNode | node that will contain the symbology definition for this layer. | |
| errorMessage | reference to string that will be updated with any error messages |
Implemented in QgsVectorLayer, and QgsRasterLayer.
Referenced by loadNamedStyle().
| virtual bool QgsMapLayer::writeSymbology | ( | QDomNode & | , | |
| QDomDocument & | doc, | |||
| QString & | errorMessage | |||
| ) | const [pure virtual] |
Write the symbology for the layer into the docment provided.
| QDomNode | the node that will have the style element added to it. | |
| QDomDocument | the document that will have the QDomNode added. | |
| errorMessage | reference to string that will be updated with any error messages |
Implemented in QgsVectorLayer, and QgsRasterLayer.
Referenced by saveNamedStyle().
| void QgsMapLayer::invalidTransformInput | ( | ) | [virtual, slot] |
Event handler for when a coordinate transform fails due to bad vertex error.
Definition at line 320 of file qgsmaplayer.cpp.
References QgsLogger::warning().
| void QgsMapLayer::setMinimumScale | ( | float | theMinScale | ) | [slot] |
Accessor and mutator for the minimum scale member.
Definition at line 354 of file qgsmaplayer.cpp.
References mMinScale.
Referenced by readXML().
| float QgsMapLayer::minimumScale | ( | ) | [slot] |
Definition at line 359 of file qgsmaplayer.cpp.
References mMinScale.
Referenced by QgsMapRenderer::render(), and writeXML().
| void QgsMapLayer::setMaximumScale | ( | float | theMaxScale | ) | [slot] |
Accessor and mutator for the maximum scale member.
Definition at line 365 of file qgsmaplayer.cpp.
References mMaxScale.
Referenced by readXML().
| float QgsMapLayer::maximumScale | ( | ) | [slot] |
Definition at line 370 of file qgsmaplayer.cpp.
References mMaxScale.
Referenced by QgsMapRenderer::render(), and writeXML().
| void QgsMapLayer::toggleScaleBasedVisibility | ( | bool | theVisibilityFlag | ) | [slot] |
Accessor and mutator for the scale based visilibility flag.
Definition at line 344 of file qgsmaplayer.cpp.
References mScaleBasedVisibility.
Referenced by readXML().
| bool QgsMapLayer::hasScaleBasedVisibility | ( | ) | [slot] |
Definition at line 349 of file qgsmaplayer.cpp.
References mScaleBasedVisibility.
Referenced by readXML(), QgsMapRenderer::render(), and writeXML().
| void QgsMapLayer::drawingProgress | ( | int | theProgress, | |
| int | theTotalSteps | |||
| ) | [signal] |
Emit a signal to notify of a progress event.
Referenced by QgsRasterLayer::bandStatistics(), QgsRasterLayer::buildPyramids(), QgsVectorLayer::draw(), and QgsRasterLayer::updateProgress().
| void QgsMapLayer::statusChanged | ( | QString | theStatus | ) | [signal] |
Emit a signal with status (e.g.
to be caught by QgisApp and display a msg on status bar)
Referenced by QgsRasterLayer::bandStatistics(), QgsRasterLayer::draw(), QgsRasterLayer::QgsRasterLayer(), and QgsRasterLayer::showStatusMessage().
| void QgsMapLayer::layerNameChanged | ( | ) | [signal] |
| void QgsMapLayer::repaintRequested | ( | ) | [signal] |
This signal should be connected with the slot QgsMapCanvas::refresh() : to be removed - GUI dependency.
Referenced by QgsRasterLayer::triggerRepaint(), and QgsVectorLayer::triggerRepaint().
| void QgsMapLayer::screenUpdateRequested | ( | ) | [signal] |
The layer emits this signal when a screen update is requested.
This signal should be connected with the slot QgsMapCanvas::updateMap()
Referenced by QgsVectorLayer::draw().
| void QgsMapLayer::recalculateExtents | ( | ) | [signal] |
This is used to send a request that any mapcanvas using this layer update its extents.
Referenced by QgsVectorLayer::updateExtents().
| bool QgsMapLayer::readXml | ( | QDomNode & | layer_node | ) | [protected, virtual] |
called by readXML(), used by children to read state specific to them from project files.
Reimplemented in QgsVectorLayer, and QgsRasterLayer.
Definition at line 232 of file qgsmaplayer.cpp.
Referenced by readXML().
| bool QgsMapLayer::writeXml | ( | QDomNode & | layer_node, | |
| QDomDocument & | document | |||
| ) | [protected, virtual] |
called by writeXML(), used by children to write state specific to them to project files.
Reimplemented in QgsVectorLayer, and QgsRasterLayer.
Definition at line 304 of file qgsmaplayer.cpp.
Referenced by writeXML().
| void QgsMapLayer::connectNotify | ( | const char * | signal | ) | [protected] |
debugging member - invoked when a connect() is made to this object
Definition at line 337 of file qgsmaplayer.cpp.
References QgsDebugMsg.
| QgsMapLayer& QgsMapLayer::operator= | ( | QgsMapLayer const & | ) | [private] |
private assign operator - QgsMapLayer not copyable
unsigned int QgsMapLayer::mTransparencyLevel [protected] |
Transparency level for this layer should be 0-255 (255 being opaque).
Definition at line 318 of file qgsmaplayer.h.
Referenced by QgsRasterLayer::draw(), QgsVectorLayer::drawLineString(), QgsRasterLayer::drawMultiBandColor(), QgsRasterLayer::drawPalettedSingleBandColor(), QgsRasterLayer::drawPalettedSingleBandGray(), QgsRasterLayer::drawPalettedSingleBandPseudoColor(), QgsRasterLayer::drawSingleBandGray(), QgsRasterLayer::drawSingleBandPseudoColor(), getTransparency(), and setTransparency().
QgsRectangle QgsMapLayer::mLayerExtent [protected] |
Extent of the layer.
Definition at line 321 of file qgsmaplayer.h.
Referenced by QgsRasterLayer::draw(), extent(), QgsRasterLayer::identify(), QgsRasterLayer::readFile(), QgsRasterLayer::setDataProvider(), QgsVectorLayer::setDataProvider(), and QgsVectorLayer::updateExtents().
bool QgsMapLayer::mValid [protected] |
Indicates if the layer is valid and can be drawn.
Definition at line 324 of file qgsmaplayer.h.
Referenced by QgsRasterLayer::closeDataset(), isValid(), QgsVectorLayer::QgsVectorLayer(), QgsRasterLayer::readFile(), QgsVectorLayer::readXml(), QgsRasterLayer::setDataProvider(), QgsVectorLayer::setDataProvider(), and QgsVectorLayer::~QgsVectorLayer().
QString QgsMapLayer::mDataSource [protected] |
data source description string, varies by layer type
Definition at line 327 of file qgsmaplayer.h.
Referenced by QgsRasterLayer::buildPyramids(), publicSource(), QgsVectorLayer::readXml(), readXML(), QgsRasterLayer::setDataProvider(), QgsVectorLayer::setDataProvider(), QgsVectorLayer::setSubsetString(), and source().
QString QgsMapLayer::mLayerName [protected] |
Name of the layer - used for display.
Definition at line 330 of file qgsmaplayer.h.
Referenced by name(), QgsMapLayer(), and setLayerName().
QgsCoordinateReferenceSystem* QgsMapLayer::mCRS [protected] |
layer's Spatial reference system
Definition at line 333 of file qgsmaplayer.h.
Referenced by QgsVectorLayer::addTopologicalPoints(), QgsRasterLayer::metadata(), QgsMapLayer(), QgsRasterLayer::readFile(), readXML(), QgsVectorLayer::setCoordinateSystem(), setCrs(), QgsRasterLayer::setDataProvider(), srs(), writeXML(), and ~QgsMapLayer().
QString QgsMapLayer::mID [private] |
Unique ID of this layer - used to refer to this layer in map layer registry.
Definition at line 344 of file qgsmaplayer.h.
Referenced by getLayerID(), QgsMapLayer(), and readXML().
Type of the layer (eg.
vector, raster)
Definition at line 347 of file qgsmaplayer.h.
Referenced by type().
QString QgsMapLayer::mTag [private] |
float QgsMapLayer::mMinScale [private] |
Minimum scale at which this layer should be displayed.
Definition at line 353 of file qgsmaplayer.h.
Referenced by minimumScale(), QgsMapLayer(), and setMinimumScale().
float QgsMapLayer::mMaxScale [private] |
Maximum scale at which this layer should be displayed.
Definition at line 355 of file qgsmaplayer.h.
Referenced by maximumScale(), QgsMapLayer(), and setMaximumScale().
bool QgsMapLayer::mScaleBasedVisibility [private] |
A flag that tells us whether to use the above vars to restrict layer visibility.
Definition at line 357 of file qgsmaplayer.h.
Referenced by hasScaleBasedVisibility(), QgsMapLayer(), and toggleScaleBasedVisibility().
1.5.1