/************************************************************************
 * This file has been generated automatically from                      *
 *                                                                      *
 * src/gui/qgsextentwidget.h                                            *
 *                                                                      *
 * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
 ************************************************************************/







class QgsExtentWidget : QWidget
{
%Docstring
A widget for configuration of a map extent.

Besides allowing the user to enter the extent manually, it comes with options to use
original extent or extent defined by the current view in map canvas.

When using the widget, make sure to call setOriginalExtent(), setCurrentExtent() and setOutputCrs() during initialization.

.. seealso:: :py:class:`QgsExtentGroupBox`

.. versionadded:: 3.14
%End

%TypeHeaderCode
#include "qgsextentwidget.h"
%End
  public:

    enum ExtentState
    {
      OriginalExtent,
      CurrentExtent,
      UserExtent,
      ProjectLayerExtent,
      DrawOnCanvas,
    };

    enum WidgetStyle
    {
      CondensedStyle,
      ExpandedStyle,
    };

    explicit QgsExtentWidget( QWidget *parent /TransferThis/ = 0, WidgetStyle style = CondensedStyle );
%Docstring
Constructor for QgsExtentWidget.
%End

    void setOriginalExtent( const QgsRectangle &originalExtent, const QgsCoordinateReferenceSystem &originalCrs );
%Docstring
Sets the original extent and coordinate reference system for the widget. This should be called as part of initialization.

.. seealso:: :py:func:`originalExtent`

.. seealso:: :py:func:`originalCrs`
%End

    QgsRectangle originalExtent() const;
%Docstring
Returns the original extent set for the widget.

.. seealso:: :py:func:`setOriginalExtent`

.. seealso:: :py:func:`originalCrs`
%End

    QgsCoordinateReferenceSystem originalCrs() const;
%Docstring
Returns the original coordinate reference system set for the widget.

.. seealso:: :py:func:`originalExtent`

.. seealso:: :py:func:`setOriginalExtent`
%End

    void setCurrentExtent( const QgsRectangle &currentExtent, const QgsCoordinateReferenceSystem &currentCrs );
%Docstring
Sets the current extent to show in the widget - should be called as part of initialization (or whenever current extent changes).
The current extent is usually set to match the current map canvas extent.

.. seealso:: :py:func:`currentExtent`

.. seealso:: :py:func:`currentCrs`
%End

    QgsRectangle currentExtent() const;
%Docstring
Returns the current extent set for the widget. The current extent is usually set to match the
current map canvas extent.

.. seealso:: :py:func:`setCurrentExtent`

.. seealso:: :py:func:`currentCrs`
%End

    QgsCoordinateReferenceSystem currentCrs() const;
%Docstring
Returns the coordinate reference system for the current extent set for the widget. The current
extent and CRS usually reflects the map canvas extent and CRS.

.. seealso:: :py:func:`setCurrentExtent`

.. seealso:: :py:func:`currentExtent`
%End

    void setOutputCrs( const QgsCoordinateReferenceSystem &outputCrs );
%Docstring
Sets the output CRS - may need to be used for transformation from original/current extent.
Should be called as part of initialization and whenever the the output CRS is changed.
The current extent will be reprojected into the new output CRS.
%End

    QgsRectangle outputExtent() const;
%Docstring
Returns the extent shown in the widget - in output CRS coordinates.

.. seealso:: :py:func:`outputCrs`
%End

    QgsCoordinateReferenceSystem outputCrs() const;
%Docstring
Returns the current output CRS, used in the display.

.. seealso:: :py:func:`outputExtent`
%End

    QgsExtentWidget::ExtentState extentState() const;
%Docstring
Returns the currently selected state for the widget's extent.
%End

    void setMapCanvas( QgsMapCanvas *canvas );
%Docstring
Sets the map canvas to enable dragging of extent on a canvas.

:param canvas: the map canvas
%End

    QSize ratio() const;
%Docstring
Returns the current fixed aspect ratio to be used when dragging extent onto the canvas.
If the aspect ratio isn't fixed, the width and height will be set to zero.
%End

    QString extentLayerName() const;
%Docstring
Returns the name of the extent layer.
%End

    bool isValid() const;
%Docstring
Returns ``True`` if the widget is in a valid state, i.e. has an extent set.
%End

    void setNullValueAllowed( bool allowed, const QString &notSetText = QString() );
%Docstring
Sets whether the widget can be set to a "not set" (null) state.

The specified ``notSetText`` will be used for showing null values.

.. note::

   This mode only applies to widgets in the condensed state!
%End

  public slots:

    void setOutputExtentFromOriginal();
%Docstring
Sets the output extent to be the same as original extent (may be transformed to output CRS).
%End

    void setOutputExtentFromCurrent();
%Docstring
Sets the output extent to be the same as current extent (may be transformed to output CRS).
%End

    void setOutputExtentFromUser( const QgsRectangle &extent, const QgsCoordinateReferenceSystem &crs );
%Docstring
Sets the output extent to a custom extent (may be transformed to output CRS).
%End

    void setOutputExtentFromLayer( const QgsMapLayer *layer );
%Docstring
Sets the output extent to match a ``layer``'s extent (may be transformed to output CRS).
%End

    void setOutputExtentFromDrawOnCanvas();
%Docstring
Sets the output extent by dragging on the canvas.
%End

    void setRatio( QSize ratio );
%Docstring
Sets a fixed aspect ratio to be used when dragging extent onto the canvas.
To unset a fixed aspect ratio, set the width and height to zero.

:param ratio: aspect ratio's width and height
%End

    void clear();
%Docstring
Clears the widget, setting it to a null value.
%End

  signals:

    void extentChanged( const QgsRectangle &r );
%Docstring
Emitted when the widget's extent is changed.
%End

    void validationChanged( bool valid );
%Docstring
Emitted when the widget's validation state changes.
%End

    void toggleDialogVisibility( bool visible );
%Docstring
Emitted when the parent dialog visibility must be changed (e.g.
to permit access to the map canvas)
%End

  protected:

    virtual void dragEnterEvent( QDragEnterEvent *event );

    virtual void dragLeaveEvent( QDragLeaveEvent *event );

    virtual void dropEvent( QDropEvent *event );


};

/************************************************************************
 * This file has been generated automatically from                      *
 *                                                                      *
 * src/gui/qgsextentwidget.h                                            *
 *                                                                      *
 * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
 ************************************************************************/