QGIS API Documentation
3.26.3-Buenos Aires (65e4edfdad)
src
core
labeling
qgslabelplacementsettings.h
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/***************************************************************************
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qgslabelplacementsettings.h
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--------------------------
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Date : May 2022
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Copyright : (C) 2022 by Nyall Dawson
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Email : nyall dot dawson at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSLABELPLACEMENTSETTINGS_H
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#define QGSLABELPLACEMENTSETTINGS_H
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#include "qgis_core.h"
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#include "
qgis_sip.h
"
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#include "
qgis.h
"
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class
QgsPropertyCollection
;
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class
QgsExpressionContext
;
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class
CORE_EXPORT
QgsLabelPlacementSettings
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{
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public
:
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Qgis::LabelOverlapHandling
overlapHandling
()
const
{
return
mOverlapHandling; }
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void
setOverlapHandling
(
Qgis::LabelOverlapHandling
handling ) { mOverlapHandling = handling; }
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bool
allowDegradedPlacement
()
const
{
return
mAllowDegradedPlacement; }
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void
setAllowDegradedPlacement
(
bool
allow ) { mAllowDegradedPlacement = allow; }
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void
updateDataDefinedProperties(
const
QgsPropertyCollection
&properties,
QgsExpressionContext
&context );
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private
:
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Qgis::LabelOverlapHandling
mOverlapHandling =
Qgis::LabelOverlapHandling::PreventOverlap
;
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bool
mAllowDegradedPlacement =
false
;
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};
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#endif // QGSLABELPLACEMENTSETTINGS_H
QgsExpressionContext
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
Definition:
qgsexpressioncontext.h:406
qgis.h
QgsLabelPlacementSettings::setAllowDegradedPlacement
void setAllowDegradedPlacement(bool allow)
Sets whether labels can be placed in inferior fallback positions if they cannot otherwise be placed.
Definition:
qgslabelplacementsettings.h:70
qgis_sip.h
QgsPropertyCollection
A grouped map of multiple QgsProperty objects, each referenced by a integer key value.
Definition:
qgspropertycollection.h:318
Qgis::LabelOverlapHandling::PreventOverlap
@ PreventOverlap
Do not allow labels to overlap other labels.
QgsLabelPlacementSettings::overlapHandling
Qgis::LabelOverlapHandling overlapHandling() const
Returns the technique used to handle overlapping labels.
Definition:
qgslabelplacementsettings.h:42
QgsLabelPlacementSettings::allowDegradedPlacement
bool allowDegradedPlacement() const
Returns true if labels can be placed in inferior fallback positions if they cannot otherwise be place...
Definition:
qgslabelplacementsettings.h:59
QgsLabelPlacementSettings::setOverlapHandling
void setOverlapHandling(Qgis::LabelOverlapHandling handling)
Sets the technique used to handle overlapping labels.
Definition:
qgslabelplacementsettings.h:48
Qgis::LabelOverlapHandling
LabelOverlapHandling
Label overlap handling.
Definition:
qgis.h:545
QgsLabelPlacementSettings
Contains general settings related to how labels are placed.
Definition:
qgslabelplacementsettings.h:34
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