qgslayoutframe.h

Go to the documentation of this file.

/***************************************************************************
                              qgslayoutframe.cpp
                              ------------------
    begin                : October 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 QGSLAYOUTFRAME_H
#define QGSLAYOUTFRAME_H

#include "qgis_core.h"
#include "qgis_sip.h"
#include "qgslayoutitem.h"

class QgsLayout;
class QgsLayoutMultiFrame;

class CORE_EXPORT QgsLayoutFrame: public QgsLayoutItem
{
    Q_OBJECT

  public:

    QgsLayoutFrame( QgsLayout *layout, QgsLayoutMultiFrame *multiFrame );

    static QgsLayoutFrame *create( QgsLayout *layout ) SIP_FACTORY;

    int type() const override;
    QIcon icon() const override;

    //Overridden to allow multiframe to set display name
    QString displayName() const override;

    void cleanup() override;

    void setContentSection( const QRectF &section ) { mSection = section; }

    QgsLayoutMultiFrame *multiFrame() const;

    QgsLayoutSize minimumSize() const override;
    QgsLayoutSize fixedSize() const override;

    QRectF extent() const { return mSection; }

    bool hidePageIfEmpty() const { return mHidePageIfEmpty; }

    void setHidePageIfEmpty( bool hidePageIfEmpty );

    bool hideBackgroundIfEmpty() const { return mHideBackgroundIfEmpty; }

    void setHideBackgroundIfEmpty( bool hideBackgroundIfEmpty );

    bool isEmpty() const;

    QgsExpressionContext createExpressionContext() const override;
    ExportLayerBehavior exportLayerBehavior() const override;

  protected:

    void draw( QgsLayoutItemRenderContext &context ) override;
    void drawFrame( QgsRenderContext &context ) override;
    void drawBackground( QgsRenderContext &context ) override;
    bool writePropertiesToElement( QDomElement &parentElement, QDomDocument &document, const QgsReadWriteContext &context ) const override;
    bool readPropertiesFromElement( const QDomElement &itemElement, const QDomDocument &document, const QgsReadWriteContext &context ) override;

  private:
    QgsLayoutFrame() = delete;
    QgsLayoutMultiFrame *mMultiFrame = nullptr;
    QString mMultiFrameUuid;
    QRectF mSection;

    bool mHidePageIfEmpty = false;
    bool mHideBackgroundIfEmpty = false;

    friend class QgsLayoutMultiFrame;

};

#endif // QGSLAYOUTFRAME_H