libreoffice/chart2/source/controller/inc/SelectionHelper.hxx

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#ifndef INCLUDED_CHART2_SOURCE_CONTROLLER_MAIN_SELECTIONHELPER_HXX
#define INCLUDED_CHART2_SOURCE_CONTROLLER_MAIN_SELECTIONHELPER_HXX

#include "DrawViewWrapper.hxx"
#include <ObjectIdentifier.hxx>

class SdrObject;

namespace com { namespace sun { namespace star { namespace drawing { class XShape; } } } }

namespace chart
{

class Selection
{
public: //methods
    bool hasSelection();

    OUString const & getSelectedCID();
    css::uno::Reference< css::drawing::XShape > const & getSelectedAdditionalShape();
    const ObjectIdentifier& getSelectedOID() const { return m_aSelectedOID;}

    bool isResizeableObjectSelected();
    bool isRotateableObjectSelected( const css::uno::Reference< css::frame::XModel >& xChartModel );
    bool isDragableObjectSelected();

    bool isAdditionalShapeSelected() const;

    //returns true if selection has changed
    bool setSelection( const OUString& rCID );
    bool setSelection( const css::uno::Reference< css::drawing::XShape >& xShape );

    void clearSelection();

    //returns true if the selection has changed
    bool maybeSwitchSelectionAfterSingleClickWasEnsured();
    void resetPossibleSelectionAfterSingleClickWasEnsured();

    void remindSelectionBeforeMouseDown();
    bool isSelectionDifferentFromBeforeMouseDown() const;

    void adaptSelectionToNewPos( const Point& rMousePos, DrawViewWrapper const * pDrawViewWrapper
                                       , bool bIsRightMouse, bool bWaitingForDoubleClick );

    void applySelection( DrawViewWrapper* pDrawViewWrapper );

private: //member
    //the selection could be given by a CID or by a shape
    //if m_aSelectedObjectCID is not empty this indicates the selection
    //the content of m_xSelectedShape is ignored in that case
    //the strings are used for autogenerated chart specific objects
    //the shape reference is used for additional shapes
    ObjectIdentifier    m_aSelectedOID; //only single object selection so far
    ObjectIdentifier    m_aSelectedOID_beforeMouseDown;
    ObjectIdentifier    m_aSelectedOID_selectOnlyIfNoDoubleClickIsFollowing;
};

class SelectionHelper : public MarkHandleProvider
{
public:
    static bool             findNamedParent( SdrObject*& pInOutObject
                                , OUString& rOutName
                                , bool bGivenObjectMayBeResult );
    static bool             findNamedParent( SdrObject*& pInOutObject
                                , ObjectIdentifier& rOutObject
                                , bool bGivenObjectMayBeResult );
    static SdrObject*       getMarkHandlesObject( SdrObject* pObj );
    static E3dScene*        getSceneToRotate( SdrObject* pObj );
    static bool             isDragableObjectHitTwice( const Point& rMPos
                                , const OUString& rNameOfSelectedObject
                                , const DrawViewWrapper& rDrawViewWrapper );

    static OUString getHitObjectCID(
        const Point& rMPos,
        DrawViewWrapper const & rDrawViewWrapper,
        bool bGetDiagramInsteadOf_Wall=false );

    static bool isRotateableObject( const OUString& rCID
                    , const css::uno::Reference< css::frame::XModel >& xChartModel );

    explicit SelectionHelper( SdrObject* pSelectedObj );
    virtual ~SelectionHelper();

    //MarkHandleProvider:
    virtual bool getMarkHandles( SdrHdlList& rHdlList ) override;
    virtual bool getFrameDragSingles() override;

    SdrObject*   getObjectToMark();//sets also internally the mark object
    //-> getMarkHandles will behave different if this method has found a Mark Object different from m_pSelectedObj

private:
    SdrObject*      m_pSelectedObj;//hit and logically selected object
    SdrObject*      m_pMarkObj;//object that is marked instead to have more pretty handles
};

} //namespace chart
#endif

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