qgsmapcanvasannotationitem.h

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/***************************************************************************
                              qgsmapcanvasannotationitem.h
                              ----------------------------
  begin                : January 2017
  copyright            : (C) 2017 by Nyall Dawson
  email                : nyall dot dawson at gmail dot com
 ***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSMAPCANVASANNOTATIONITEM_H
#define QGSMAPCANVASANNOTATIONITEM_H
 
#ifdef SIP_RUN
% ModuleHeaderCode
// For ConvertToSubClassCode.
#include <qgsmapcanvasannotationitem.h>
% End
#endif
 
#include "qgsmapcanvasitem.h"
#include "qgis_gui.h"
 
class QgsAnnotation;
 
class GUI_EXPORT QgsMapCanvasAnnotationItem: public QObject, public QgsMapCanvasItem
{
    Q_OBJECT
 
#ifdef SIP_RUN
    SIP_CONVERT_TO_SUBCLASS_CODE
    if ( dynamic_cast<QgsMapCanvasAnnotationItem *>( sipCpp ) )
      sipType = sipType_QgsMapCanvasAnnotationItem;
    else
      sipType = nullptr;
    SIP_END
#endif
 
  public:
 
    enum MouseMoveAction
    {
      NoAction, 
      MoveMapPosition, 
      MoveFramePosition, 
      ResizeFrameUp, 
      ResizeFrameDown, 
      ResizeFrameLeft, 
      ResizeFrameRight, 
      ResizeFrameLeftUp, 
      ResizeFrameRightUp, 
      ResizeFrameLeftDown, 
      ResizeFrameRightDown 
    };
 
    QgsMapCanvasAnnotationItem( QgsAnnotation *annotation SIP_TRANSFER, QgsMapCanvas *mapCanvas SIP_TRANSFERTHIS );
 
    const QgsAnnotation *annotation() const { return mAnnotation; } SIP_SKIP
 
    QgsAnnotation *annotation() { return mAnnotation; }
 
    void updatePosition() override;
 
    QRectF boundingRect() const override;
 
    void paint( QPainter *painter ) override;
 
    MouseMoveAction moveActionForPosition( QPointF pos ) const;
 
    Qt::CursorShape cursorShapeForAction( MouseMoveAction moveAction ) const;
 
  private slots:
 
    void updateBoundingRect();
 
    void onCanvasLayersChanged();
 
    void setFeatureForMapPosition();
 
  private:
 
    void drawSelectionBoxes( QPainter *p ) const;
 
    double scaledSymbolSize() const;
 
    QgsAnnotation *mAnnotation = nullptr;
 
    QRectF mBoundingRect;
 
};
 
#endif // QGSMAPCANVASANNOTATIONITEM_H