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82 lines
3.1 KiB
Plaintext
82 lines
3.1 KiB
Plaintext
/**
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* Collapsible group box for configuration of extent, typically for a save operation.
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*
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* Besides allowing the user to enter the extent manually, it comes with options to use
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* original extent or extent defined by the current view in map canvas.
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*
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* When using the widget, make sure to call setOriginalExtent(), setCurrentExtent() and setOutputCrs() during initialization.
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*
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* @note added in 2.4
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*/
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class QgsExtentGroupBox : QgsCollapsibleGroupBox
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{
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%TypeHeaderCode
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#include <qgsextentgroupbox.h>
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%End
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public:
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explicit QgsExtentGroupBox( QWidget *parent /TransferThis/ = 0 );
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enum ExtentState
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{
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OriginalExtent, //!< layer's extent
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CurrentExtent, //!< map canvas extent
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UserExtent, //!< extent manually entered/modified by the user
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};
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//! Setup original extent - should be called as part of initialization
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void setOriginalExtent( const QgsRectangle &originalExtent, const QgsCoordinateReferenceSystem &originalCrs );
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QgsRectangle originalExtent() const;
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const QgsCoordinateReferenceSystem &originalCrs() const;
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//! Setup current extent - should be called as part of initialization (or whenever current extent changes)
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void setCurrentExtent( const QgsRectangle ¤tExtent, const QgsCoordinateReferenceSystem ¤tCrs );
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QgsRectangle currentExtent() const;
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const QgsCoordinateReferenceSystem ¤tCrs() const;
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//! Set the output CRS - may need to be used for transformation from original/current extent.
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//! Should be called as part of initialization and whenever the the output CRS is changed
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void setOutputCrs( const QgsCoordinateReferenceSystem &outputCrs );
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//! Get the resulting extent - in output CRS coordinates
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QgsRectangle outputExtent() const;
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QgsExtentGroupBox::ExtentState extentState() const;
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//! Set base part of title of the group box (will be appended with extent state)
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//! @note added in 2.12
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void setTitleBase( const QString &title );
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//! Set base part of title of the group box (will be appended with extent state)
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//! @note added in 2.12
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QString titleBase() const;
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public slots:
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//! set output extent to be the same as original extent (may be transformed to output CRS)
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void setOutputExtentFromOriginal();
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//! set output extent to be the same as current extent (may be transformed to output CRS)
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void setOutputExtentFromCurrent();
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//! set output extent to custom extent (may be transformed to output CRS)
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void setOutputExtentFromUser( const QgsRectangle &extent, const QgsCoordinateReferenceSystem &crs );
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signals:
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//! emitted when extent is changed
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void extentChanged( const QgsRectangle &r );
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protected slots:
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void on_mXMinLineEdit_textEdited( const QString & );
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void on_mXMaxLineEdit_textEdited( const QString & );
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void on_mYMinLineEdit_textEdited( const QString & );
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void on_mYMaxLineEdit_textEdited( const QString & );
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void groupBoxClicked();
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protected:
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void setOutputExtent( const QgsRectangle &r, const QgsCoordinateReferenceSystem &srcCrs, QgsExtentGroupBox::ExtentState state );
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void setOutputExtentFromLineEdit();
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void updateTitle();
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};
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