| QGIS API Documentation
    3.20.0-Odense (decaadbb31)
    | 
#include "qgis_core.h"#include "qgis_sip.h"#include "qgsexpressioncontext.h"#include "qgsreadwritecontext.h"#include "qgspropertycollection.h"#include "qgsmapunitscale.h"#include "qgscalloutposition.h"#include "qgsmargins.h"#include <QPainter>#include <QString>#include <QRectF>#include <memory>

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| Classes | |
| class | QgsBalloonCallout | 
| A cartoon talking bubble callout style.  More... | |
| class | QgsCallout | 
| Abstract base class for callout renderers.  More... | |
| class | QgsCallout::QgsCalloutContext | 
| Contains additional contextual information about the context in which a callout is being rendered.  More... | |
| class | QgsCurvedLineCallout | 
| Draws curved lines as callouts.  More... | |
| class | QgsManhattanLineCallout | 
| Draws straight (right angled) lines as callouts.  More... | |
| class | QgsSimpleLineCallout | 
| A simple direct line callout style.  More... | |