qgslayoutpicturewidget.h

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/***************************************************************************
                         qgslayoutpicturewidget.h
                         --------------------------
    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 QGSLAYOUTPICTUREWIDGET_H
#define QGSLAYOUTPICTUREWIDGET_H

// We don't want to expose this in the public API
#define SIP_NO_FILE

#include "qgis_gui.h"
#include "ui_qgslayoutpicturewidgetbase.h"
#include "qgslayoutitemwidget.h"

class QgsLayoutItemPicture;

class GUI_EXPORT QgsLayoutPictureWidget: public QgsLayoutItemBaseWidget, private Ui::QgsLayoutPictureWidgetBase
{
    Q_OBJECT

  public:
    explicit QgsLayoutPictureWidget( QgsLayoutItemPicture *picture );
    void setMasterLayout( QgsMasterLayoutInterface *masterLayout ) override;

    void addStandardDirectoriesToPreview();

  private slots:
    void mPictureBrowseButton_clicked();
    void mPictureLineEdit_editingFinished();
    void mPictureRotationSpinBox_valueChanged( double d );
    void mPreviewListWidget_currentItemChanged( QListWidgetItem *current, QListWidgetItem *previous );
    void mAddDirectoryButton_clicked();
    void mRemoveDirectoryButton_clicked();
    void mRotationFromComposerMapCheckBox_stateChanged( int state );
    void mapChanged( QgsLayoutItem *item );
    void mResizeModeComboBox_currentIndexChanged( int index );
    void mAnchorPointComboBox_currentIndexChanged( int index );

  protected:

    bool setNewItem( QgsLayoutItem *item ) override;

    void resizeEvent( QResizeEvent *event ) override;

  protected slots:
    void populateDataDefinedButtons();

  private slots:
    void setGuiElementValues();

    void setPicRotationSpinValue( double r );

    void loadPicturePreviews( bool collapsed );

    void mFillColorButton_colorChanged( const QColor &color );
    void mStrokeColorButton_colorChanged( const QColor &color );
    void mStrokeWidthSpinBox_valueChanged( double d );
    void mPictureRotationOffsetSpinBox_valueChanged( double d );
    void mNorthTypeComboBox_currentIndexChanged( int index );

  private:
    QPointer< QgsLayoutItemPicture > mPicture;
    QgsLayoutItemPropertiesWidget *mItemPropertiesWidget = nullptr;


    bool mPreviewsLoaded = false;

    int addDirectoryToPreview( const QString &path );

    bool testSvgFile( const QString &filename ) const;
    bool testImageFile( const QString &filename ) const;

    QIcon svgToIcon( const QString &filePath ) const;

    void updateSvgParamGui( bool resetValues = true );
};

#endif // QGSLAYOUTPICTUREWIDGET_H