QGIS API Documentation
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src
gui
qgsabstractmaptoolhandler.h
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/***************************************************************************
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qgsabstractmaptoolhandler.h
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---------------------
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begin : October 2020
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copyright : (C) 2020 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 QGSABSTRACTMAPTOOLHANDLER_H
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#define QGSABSTRACTMAPTOOLHANDLER_H
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#include "qgis_gui.h"
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class
QgsMapLayer
;
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class
QgsMapTool
;
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class
QAction;
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class
GUI_EXPORT
QgsAbstractMapToolHandler
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{
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public
:
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struct
Context
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{
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bool
dummy =
false
;
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};
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QgsAbstractMapToolHandler
(
QgsMapTool
*tool, QAction *action );
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virtual
~QgsAbstractMapToolHandler
();
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QgsMapTool
*mapTool();
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QAction *action();
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virtual
bool
isCompatibleWithLayer
(
QgsMapLayer
*layer,
const
QgsAbstractMapToolHandler::Context
&context ) = 0;
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virtual
void
setLayerForTool(
QgsMapLayer
*layer );
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private
:
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QgsMapTool
*mMapTool =
nullptr
;
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QAction *mAction =
nullptr
;
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};
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#endif
// QGSABSTRACTMAPTOOLHANDLER_H
QgsAbstractMapToolHandler
An abstract base class for map tool handlers which automatically handle all the necessary logic for t...
Definition
qgsabstractmaptoolhandler.h:62
QgsAbstractMapToolHandler::~QgsAbstractMapToolHandler
virtual ~QgsAbstractMapToolHandler()
QgsAbstractMapToolHandler::isCompatibleWithLayer
virtual bool isCompatibleWithLayer(QgsMapLayer *layer, const QgsAbstractMapToolHandler::Context &context)=0
Returns true if the associated map tool is compatible with the specified layer.
QgsMapLayer
Base class for all map layer types.
Definition
qgsmaplayer.h:76
QgsMapTool
Abstract base class for all map tools.
Definition
qgsmaptool.h:71
QgsAbstractMapToolHandler::Context
Context of a QgsAbstractMapToolHandler call.
Definition
qgsabstractmaptoolhandler.h:70
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