36 for (
int i = 0; i < pipe.
size(); i++ )
45 clone->setInput( mInterfaces.at( i - 1 ) );
47 mInterfaces.append( clone );
50 mRoleMap.insert( role, i );
54 mDataDefinedProperties = pipe.mDataDefinedProperties;
59 const auto constMInterfaces = mInterfaces;
70 if ( it != mRoleMap.end() )
74 dp->moveToThread( thread );
79bool QgsRasterPipe::connect( QVector<QgsRasterInterface *> interfaces )
82 for (
int i = 1; i < interfaces.size(); i++ )
84 if ( ! interfaces[i]->setInput( interfaces[i - 1] ) )
89 QgsDebugError( QStringLiteral(
"cannot connect %1 to %2" ).arg(
typeid( a ).name(),
typeid( b ).name() ) );
99 QgsDebugMsgLevel( QStringLiteral(
"insert %1 at %2" ).arg(
typeid( *interface ).name() ).arg( idx ), 4 );
100 if ( idx > mInterfaces.size() )
102 idx = mInterfaces.size();
106 QVector<QgsRasterInterface *> interfaces = mInterfaces;
108 interfaces.insert( idx, interface );
109 bool success =
false;
110 if ( connect( interfaces ) )
113 mInterfaces.insert( idx, interface );
114 setRole( interface, idx );
119 QgsDebugMsgLevel( QStringLiteral(
"Error inserting pipe %1" ).arg( idx ), 4 );
123 connect( mInterfaces );
129 if ( !interface )
return false;
131 QgsDebugMsgLevel( QStringLiteral(
"replace by %1 at %2" ).arg(
typeid( *interface ).name() ).arg( idx ), 4 );
132 if ( !checkBounds( idx ) )
return false;
136 QVector<QgsRasterInterface *> interfaces = mInterfaces;
138 interfaces[idx] = interface;
139 bool success =
false;
140 if ( connect( interfaces ) )
143 delete mInterfaces.at( idx );
144 mInterfaces[idx] = interface;
145 setRole( interface, idx );
150 connect( mInterfaces );
182 mRoleMap.insert( role, idx );
191 const int roleIdx{ mRoleMap[role] };
192 mRoleMap.remove( role );
195 const QMap<Qgis::RasterPipeInterfaceRole, int> currentRoles = mRoleMap;
196 for (
auto it = currentRoles.cbegin(); it != currentRoles.cend(); ++it )
198 if ( it.value() > roleIdx )
200 mRoleMap[it.key()] = it.value() - 1;
218 if ( mRoleMap.contains( role ) )
222 return replace( mRoleMap.value( role ), interface );
245 idx = providerIdx + 1;
249 idx = std::max( providerIdx, rendererIdx ) + 1;
253 idx = std::max( std::max( providerIdx, rendererIdx ), brightnessIdx ) + 1;
257 idx = std::max( std::max( std::max( providerIdx, rendererIdx ), brightnessIdx ), hueSaturationIdx ) + 1;
261 idx = std::max( std::max( std::max( std::max( providerIdx, rendererIdx ), brightnessIdx ), hueSaturationIdx ), resamplerIdx ) + 1;
264 return insert( idx, interface );
270 if ( mRoleMap.contains( role ) )
272 return mInterfaces.value( mRoleMap.value( role ) );
316 if ( !checkBounds( idx ) )
321 QVector<QgsRasterInterface *> interfaces = mInterfaces;
323 interfaces.remove( idx );
324 bool success =
false;
325 if ( connect( interfaces ) )
328 unsetRole( mInterfaces.at( idx ) );
329 delete mInterfaces.at( idx );
330 mInterfaces.remove( idx );
335 QgsDebugMsgLevel( QStringLiteral(
"Error removing pipe %1" ).arg( idx ), 4 );
339 connect( mInterfaces );
346 if ( !interface )
return false;
348 return remove( mInterfaces.indexOf( interface ) );
353 QgsDebugMsgLevel( QStringLiteral(
"idx = %1 on = %2" ).arg( idx ).arg( on ), 4 );
354 if ( !checkBounds( idx ) )
359 bool onOrig = mInterfaces.at( idx )->on();
364 mInterfaces.at( idx )->setOn( on );
366 bool success = connect( mInterfaces );
368 mInterfaces.at( idx )->setOn( onOrig );
369 connect( mInterfaces );
375 QgsDebugMsgLevel( QStringLiteral(
"idx = %1 on = %2" ).arg( idx ).arg( on ), 4 );
376 if ( !checkBounds( idx ) )
379 bool onOrig = mInterfaces.at( idx )->on();
384 mInterfaces.at( idx )->setOn( on );
386 if ( connect( mInterfaces ) )
389 mInterfaces.at( idx )->setOn( onOrig );
390 connect( mInterfaces );
395bool QgsRasterPipe::checkBounds(
int idx )
const
397 return !( idx < 0 || idx >= mInterfaces.size() );
402 mResamplingStage = stage;
404 int resamplerIndex = 0;
430 const double prevOpacity = r->opacity();
436 r->setOpacity( opacity );
444void QgsRasterPipe::initPropertyDefinitions()
446 const QString origin = QStringLiteral(
"raster" );
456 static std::once_flag initialized;
457 std::call_once( initialized, [ = ]( )
459 initPropertyDefinitions();
461 return sPropertyDefinitions;
RasterResamplingStage
Stage at which raster resampling occurs.
@ Provider
Resampling occurs in Provider.
@ ResampleFilter
Resampling occurs in ResamplingFilter.
RasterPipeInterfaceRole
Raster pipe interface roles.
@ Renderer
Raster renderer role.
@ Projector
Projector role.
@ Resampler
Resampler role.
@ HueSaturation
Hue/saturation filter role (also applies grayscale/color inversion)
@ Provider
Data provider role.
@ Nuller
Raster nuller role.
@ Brightness
Brightness filter role.
double valueAsDouble(int key, const QgsExpressionContext &context, double defaultValue=0.0, bool *ok=nullptr) const
Calculates the current value of the property with the specified key and interprets it as a double.
Brightness/contrast and gamma correction filter pipe for rasters.
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
void setOriginalValueVariable(const QVariant &value)
Sets the original value variable value for the context.
Color and saturation filter pipe for rasters.
bool isActive(int key) const final
Returns true if the collection contains an active property with the specified key.
bool hasActiveProperties() const final
Returns true if the collection has any active properties, or false if all properties within the colle...
Definition for a property.
Base class for raster data providers.
Base class for processing filters like renderers, reprojector, resampler etc.
virtual QgsRasterInterface * clone() const =0
Clone itself, create deep copy.
Raster pipe that deals with null values.
Contains a pipeline of raster interfaces for sequential raster processing.
bool set(QgsRasterInterface *interface)
Inserts a new known interface in default place or replace interface of the same role if it already ex...
int size() const
Returns the size of the pipe (the number of interfaces contained in the pipe).
QgsRasterPipe()=default
Constructor for an empty QgsRasterPipe.
void moveToThread(QThread *thread)
Moves the pipe to another thread.
QgsRasterResampleFilter * resampleFilter() const
Returns the resample filter interface, or nullptr if no resample filter is present in the pipe.
bool replace(int idx, QgsRasterInterface *interface)
Attempts to replace the interface at specified index and reconnect the pipe.
QgsRasterDataProvider * provider() const
Returns the data provider interface, or nullptr if no data provider is present in the pipe.
@ RendererOpacity
Raster renderer global opacity.
bool canSetOn(int idx, bool on)
Returns true if the interface at the specified index may be switched on or off.
bool insert(int idx, QgsRasterInterface *interface)
Attempts to insert interface at specified index and connect if connection would fail,...
void setResamplingStage(Qgis::RasterResamplingStage stage)
Sets which stage of the pipe should apply resampling.
void evaluateDataDefinedProperties(QgsExpressionContext &context)
Evaluates any data defined properties set on the pipe, applying their results to the corresponding in...
QgsRasterProjector * projector() const
Returns the projector interface, or nullptr if no projector is present in the pipe.
bool remove(int idx)
Removes and deletes the interface at given index (if possible).
static QgsPropertiesDefinition propertyDefinitions()
Returns the definitions for data defined properties available for use in raster pipes.
QgsRasterRenderer * renderer() const
Returns the raster renderer interface, or nullptr if no raster renderer is present in the pipe.
Qgis::RasterResamplingStage resamplingStage() const
Returns which stage of the pipe should apply resampling.
QgsBrightnessContrastFilter * brightnessFilter() const
Returns the brightness filter interface, or nullptr if no brightness filter is present in the pipe.
QgsHueSaturationFilter * hueSaturationFilter() const
Returns the hue/saturation interface, or nullptr if no hue/saturation filter is present in the pipe.
QgsRasterNuller * nuller() const
Returns the raster nuller interface, or nullptr if no raster nuller is present in the pipe.
bool setOn(int idx, bool on)
Set whether the interface at the specified index is enabled.
Implements approximate projection support for optimised raster transformation.
Raster renderer pipe that applies colors to a raster.
Resample filter pipe for rasters.
QString qgsEnumValueToKey(const T &value, bool *returnOk=nullptr)
Returns the value for the given key of an enum.
#define QgsDebugMsgLevel(str, level)
#define QgsDebugError(str)
QMap< int, QgsPropertyDefinition > QgsPropertiesDefinition
Definition of available properties.