wxWidgets/interface/wx/propgrid/propgridiface.h

/////////////////////////////////////////////////////////////////////////////
// Name:        property.h
// Purpose:     interface of wxPGProperty
// Author:      wxWidgets team
// RCS-ID:      $Id:
// Licence:     wxWindows license
/////////////////////////////////////////////////////////////////////////////

// -----------------------------------------------------------------------

/** @class wxPropertyGridInterface

    Most of the shared property manipulation interface shared by wxPropertyGrid,
    wxPropertyGridPage, and wxPropertyGridManager is defined in this class.

    @remarks
    - In separate wxPropertyGrid component this class was known as wxPropertyContainerMethods.

    @library{wxpropgrid}
    @category{propgrid}
*/
class WXDLLIMPEXP_PROPGRID wxPropertyGridInterface
{
public:

    /** Destructor */
    virtual ~wxPropertyGridInterface() { }

    /** Adds choice to a property that can accept one.
        @remarks
        - If you need to make sure that you modify only the set of choices of
          a single property (and not also choices of other properties with initially
          identical set), call wxPropertyGrid::SetPropertyChoicesPrivate.
        - This usually only works for wxEnumProperty and derivatives (wxFlagsProperty
          can get accept new items but its items may not get updated).
    */
    void AddPropertyChoice( wxPGPropArg id, const wxString& label, int value = wxPG_INVALID_VALUE );

    /** Appends property to the list. wxPropertyGrid assumes ownership of the object.
        Becomes child of most recently added category.
        @remarks
        - wxPropertyGrid takes the ownership of the property pointer.
        - If appending a category with name identical to a category already in the
          wxPropertyGrid, then newly created category is deleted, and most recently
          added category (under which properties are appended) is set to the one with
          same name. This allows easier adding of items to same categories in multiple
          passes.
        - Does not automatically redraw the control, so you may need to call Refresh
          when calling this function after control has been shown for the first time.
    */
    wxPGProperty* Append( wxPGProperty* property );

    wxPGProperty* AppendIn( wxPGPropArg id, wxPGProperty* newproperty );

    /** Inorder to add new items into a property with fixed children (for instance, wxFlagsProperty),
        you need to call this method. After populating has been finished, you need to call EndAddChildren.
    */
    void BeginAddChildren( wxPGPropArg id );

    /** Deletes all properties.
    */
    virtual void Clear() = 0;

    /** Deselect current selection, if any. Returns true if success
        (ie. validator did not intercept). */
    bool ClearSelection();

    /** Resets modified status of all properties.
    */
    void ClearModifiedStatus()
    {
        SetPropertyModifiedStatus(m_pState->m_properties, false);
        m_pState->m_anyModified = false;
    }

    /** Collapses given category or property with children.
        Returns true if actually collapses.
    */
    bool Collapse( wxPGPropArg id );

    /** Collapses all items that can be collapsed.

        @retval
        Return false if failed (may fail if editor value cannot be validated).
    */
    bool CollapseAll() { return ExpandAll(false); }

    /** Changes value of a property, as if from an editor. Use this instead of SetPropertyValue()
        if you need the value to run through validation process, and also send the property
        change event.

        @retval
        Returns true if value was successfully changed.
    */
    bool ChangePropertyValue( wxPGPropArg id, wxVariant newValue );

    /** Resets value of a property to its default. */
    bool ClearPropertyValue( wxPGPropArg id )
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(false)
        p->SetValue(p->GetDefaultValue());
        RefreshProperty(p);
        return true;
    }

    /** Deletes a property by id. If category is deleted, all children are automatically deleted as well. */
    void DeleteProperty( wxPGPropArg id );

    /** Deletes choice from a property.

        If selected item is deleted, then the value is set to unspecified.

        See AddPropertyChoice for more details.
    */
    void DeletePropertyChoice( wxPGPropArg id, int index );

    /** Disables property. */
    bool DisableProperty( wxPGPropArg id ) { return EnableProperty(id,false); }

    /** Returns true if all property grid data changes have been committed. Usually
        only returns false if value in active editor has been invalidated by a
        wxValidator.
    */
    bool EditorValidate();

    /** Enables or disables property, depending on whether enable is true or false. */
    bool EnableProperty( wxPGPropArg id, bool enable = true );

    /** Called after population of property with fixed children has finished.
    */
    void EndAddChildren( wxPGPropArg id );

    /** Expands given category or property with children.
        Returns true if actually expands.
    */
    bool Expand( wxPGPropArg id );

    /** Expands all items that can be expanded.
    */
    bool ExpandAll( bool expand = true );

    /** Returns list of expanded properties.
    */
    wxArrayPGProperty GetExpandedProperties() const
    {
        wxArrayPGProperty array;
        GetPropertiesWithFlag(&array, wxPG_PROP_COLLAPSED, true,
            wxPG_ITERATE_ALL_PARENTS_RECURSIVELY|wxPG_ITERATE_HIDDEN);
        return array;
    }

    /** Returns id of first child of given property.
        @remarks
        Does not return sub-properties!
    */
    wxPGProperty* GetFirstChild( wxPGPropArg id )
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(wxNullProperty)

        if ( !p->GetChildCount() || p->HasFlag(wxPG_PROP_AGGREGATE) )
            return wxNullProperty;

        return p->Item(0);
    }

    //@{
    /** Returns iterator class instance.
        @param flags
        See @ref propgrid_iterator_flags. Value wxPG_ITERATE_DEFAULT causes
        iteration over everything except private child properties.
        @param firstProp
        Property to start iteration from. If NULL, then first child of root is used.
        @param startPos
        Either wxTOP or wxBOTTOM. wxTOP will indicate that iterations start from
        the first property from the top, and wxBOTTOM means that the iteration will
        instead begin from bottommost valid item.
    */
    wxPropertyGridIterator GetIterator( int flags = wxPG_ITERATE_DEFAULT, wxPGProperty* firstProp = NULL )
    {
        return wxPropertyGridIterator( m_pState, flags, firstProp );
    }

    wxPropertyGridConstIterator GetIterator( int flags = wxPG_ITERATE_DEFAULT, wxPGProperty* firstProp = NULL ) const
    {
        return wxPropertyGridConstIterator( m_pState, flags, firstProp );
    }

    wxPropertyGridIterator GetIterator( int flags, int startPos )
    {
        return wxPropertyGridIterator( m_pState, flags, startPos );
    }

    wxPropertyGridConstIterator GetIterator( int flags, int startPos ) const
    {
        return wxPropertyGridConstIterator( m_pState, flags, startPos );
    }
    //@}

    /** Returns id of first item, whether it is a category or property.
        @param flags
        @link iteratorflags List of iterator flags@endlink
    */
    wxPGProperty* GetFirst( int flags = wxPG_ITERATE_ALL )
    {
        wxPropertyGridIterator it( m_pState, flags, wxNullProperty, 1 );
        return *it;
    }

    const wxPGProperty* GetFirst( int flags = wxPG_ITERATE_ALL ) const
    {
        return ((wxPropertyGridInterface*)this)->GetFirst(flags);
    }

    /** Returns id of property with given name (case-sensitive). If there is no
        property with such name, returned property id is invalid ( i.e. it will return
        false with IsOk method).
        @remarks
        - Sub-properties (i.e. properties which have parent that is not category or
          root) can not be accessed globally by their name. Instead, use
          "<property>.<subproperty>" in place of "<subproperty>".
    */
    wxPGProperty* GetProperty( const wxString& name ) const
    {
        return GetPropertyByName(name);
    }

    /** Returns map-like storage of property's attributes.
        @remarks
        Note that if extra style wxPG_EX_WRITEONLY_BUILTIN_ATTRIBUTES is set,
        then builtin-attributes are not included in the storage.
    */
    const wxPGAttributeStorage& GetPropertyAttributes( wxPGPropArg id ) const
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(*((const wxPGAttributeStorage*)NULL));
        return p->GetAttributes();
    }

    /** Adds to 'targetArr' pointers to properties that have given
        flags 'flags' set. However, if 'inverse' is set to true, then
        only properties without given flags are stored.
        @param flags
        Property flags to use.
        @param iterFlags
        Iterator flags to use. Default is everything expect private children.
    */
    void GetPropertiesWithFlag( wxArrayPGProperty* targetArr,
                                wxPGProperty::FlagType flags,
                                bool inverse = false,
                                int iterFlags = (wxPG_ITERATE_PROPERTIES|wxPG_ITERATE_HIDDEN|wxPG_ITERATE_CATEGORIES) ) const;

    /** Returns value of given attribute. If none found, returns NULL-variant.
    */
    wxVariant GetPropertyAttribute( wxPGPropArg id, const wxString& attrName ) const
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(wxNullVariant)
        return p->GetAttribute(attrName);
    }

    /** Returns pointer of property's nearest parent category. If no category
        found, returns NULL.
    */
    wxPropertyCategory* GetPropertyCategory( wxPGPropArg id ) const
    {
        wxPG_PROP_ID_CONST_CALL_PROLOG_RETVAL(NULL)
        return m_pState->GetPropertyCategory(p);
    }

    /** Returns client data (void*) of a property. */
    void* GetPropertyClientData( wxPGPropArg id ) const
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(NULL)
        return p->GetClientData();
    }

    /** Returns first property which label matches given string. NULL if none found.
        Note that this operation is extremely slow when compared to GetPropertyByName().
    */
    wxPGProperty* GetPropertyByLabel( const wxString& label ) const;

    /** Returns property with given name. NULL if none found.
    */
    wxPGProperty* GetPropertyByName( const wxString& name ) const;

    /** Returns child property 'subname' of property 'name'. Same as
        calling GetPropertyByName("name.subname"), albeit slightly faster.
    */
    wxPGProperty* GetPropertyByName( const wxString& name, const wxString& subname ) const;

    /** Returns writable reference to property's list of choices (and relevant
        values). If property does not have any choices, will return reference
        to an invalid set of choices that will return false on IsOk call.
    */
    wxPGChoices& GetPropertyChoices( wxPGPropArg id );

    /** Returns property's editor. */
    const wxPGEditor* GetPropertyEditor( wxPGPropArg id ) const
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(NULL)
        return p->GetEditorClass();
    }

    /** Returns help string associated with a property. */
    wxString GetPropertyHelpString( wxPGPropArg id ) const
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(m_emptyString)
        return p->GetHelpString();
    }

    /** Returns property's custom value image (NULL of none). */
    wxBitmap* GetPropertyImage( wxPGPropArg id ) const
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(NULL)
        return p->GetValueImage();
    }

    /** Returns property's position under its parent. */
    unsigned int GetPropertyIndex( wxPGPropArg id )
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(INT_MAX)
        return p->GetIndexInParent();
    }

    /** Returns label of a property. */
    const wxString& GetPropertyLabel( wxPGPropArg id )
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(m_emptyString)
        return p->GetLabel();
    }

    /** Returns name of a property, by which it is globally accessible. */
    wxString GetPropertyName( wxPGPropArg id )
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(m_emptyString)
        return p->GetName();
    }

    /** Returns parent item of a property. */
    wxPGProperty* GetPropertyParent( wxPGPropArg id )
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(wxNullProperty)
        return p->GetParent();
    }

    /** Returns validator of a property as a reference, which you
        can pass to any number of SetPropertyValidator.
    */
    wxValidator* GetPropertyValidator( wxPGPropArg id )
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(NULL)
        return p->GetValidator();
    }

    /** Returns value as wxVariant. To get wxObject pointer from it,
        you will have to use WX_PG_VARIANT_TO_WXOBJECT(VARIANT,CLASSNAME) macro.

        If property value is unspecified, Null variant is returned.
    */
    wxVariant GetPropertyValue( wxPGPropArg id )
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(wxVariant())
        return p->GetValue();
    }

    wxString GetPropertyValueAsString( wxPGPropArg id ) const;
    long GetPropertyValueAsLong( wxPGPropArg id ) const;
    unsigned long GetPropertyValueAsULong( wxPGPropArg id ) const
    {
        return (unsigned long) GetPropertyValueAsLong(id);
    }
    int GetPropertyValueAsInt( wxPGPropArg id ) const { return (int)GetPropertyValueAsLong(id); }
    bool GetPropertyValueAsBool( wxPGPropArg id ) const;
    double GetPropertyValueAsDouble( wxPGPropArg id ) const;
    wxObject* GetPropertyValueAsWxObjectPtr( wxPGPropArg id ) const;
    void* GetPropertyValueAsVoidPtr( wxPGPropArg id ) const;

    wxArrayString GetPropertyValueAsArrayString( wxPGPropArg id ) const
    {
        wxPG_PROP_ID_GETPROPVAL_CALL_PROLOG_RETVAL(wxT("arrstring"), wxArrayString())
        return p->m_value.GetArrayString();
    }

    wxPoint GetPropertyValueAsPoint( wxPGPropArg id ) const
    {
        wxPG_PROP_ID_GETPROPVAL_CALL_PROLOG_RETVAL(wxT("wxPoint"), wxPoint())
        return WX_PG_VARIANT_GETVALUEREF(p->GetValue(), wxPoint);
    }

    wxSize GetPropertyValueAsSize( wxPGPropArg id ) const
    {
        wxPG_PROP_ID_GETPROPVAL_CALL_PROLOG_RETVAL(wxT("wxSize"), wxSize())
        return WX_PG_VARIANT_GETVALUEREF(p->GetValue(), wxSize);
    }

    wxLongLong_t GetPropertyValueAsLongLong( wxPGPropArg id ) const
    {
        wxPG_PROP_ID_GETPROPVAL_CALL_PROLOG_RETVAL_WFALLBACK(wxT("wxLongLong"), (long) GetPropertyValueAsLong(id))
        return WX_PG_VARIANT_GETVALUEREF(p->GetValue(), wxLongLong).GetValue();
    }

    wxULongLong_t GetPropertyValueAsULongLong( wxPGPropArg id ) const
    {
        wxPG_PROP_ID_GETPROPVAL_CALL_PROLOG_RETVAL_WFALLBACK(wxT("wxULongLong"), (unsigned long) GetPropertyValueAsULong(id))
        return WX_PG_VARIANT_GETVALUEREF(p->GetValue(), wxULongLong).GetValue();
    }

    wxArrayInt GetPropertyValueAsArrayInt( wxPGPropArg id ) const
    {
        wxPG_PROP_ID_GETPROPVAL_CALL_PROLOG_RETVAL(wxT("wxArrayInt"), wxArrayInt())
        wxArrayInt arr = WX_PG_VARIANT_GETVALUEREF(p->GetValue(), wxArrayInt);
        return arr;
    }

    wxDateTime GetPropertyValueAsDateTime( wxPGPropArg id ) const
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(wxDateTime())

        if ( wxStrcmp(p->m_value.GetType(), wxT("datetime")) != 0 )
        {
            wxPGGetFailed(p, wxT("datetime"));
            return wxDateTime();
        }
        return p->m_value.GetDateTime();
    }

    /** Returns a wxVariant list containing wxVariant versions of all
        property values. Order is not guaranteed.
        @param flags
        Use wxPG_KEEP_STRUCTURE to retain category structure; each sub
        category will be its own wxVariantList of wxVariant.
        Use wxPG_INC_ATTRIBUTES to include property attributes as well.
        Each attribute will be stored as list variant named "@@<propname>@@attr."
        @remarks
    */
    wxVariant GetPropertyValues( const wxString& listname = wxEmptyString,
        wxPGProperty* baseparent = NULL, long flags = 0 ) const
    {
        return m_pState->DoGetPropertyValues(listname, baseparent, flags);
    }

    wxString GetPropertyValueType( wxPGPropArg id )
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(m_emptyString)
        return p->GetValueType();
    }

    /** Returns currently selected property. */
    wxPGProperty* GetSelection() const
    {
        return m_pState->GetSelection();
    }

    /** Similar to GetIterator(), but instead returns wxPGVIterator instance,
        which can be useful for forward-iterating through arbitrary property
        containers.

        @param flags
        See @ref propgrid_iterator_flags.
    */
    virtual wxPGVIterator GetVIterator( int flags ) const;

    /** Hides or reveals a property.
        @param hide
        If true, hides property, otherwise reveals it.
        @param flags
        By default changes are applied recursively. Set this paramter wxPG_DONT_RECURSE to prevent this.
    */
    bool HideProperty( wxPGPropArg id, bool hide = true, int flags = wxPG_RECURSE );

    /** Initializes *all* property types. Causes references to most object
        files in the library, so calling this may cause significant increase
        in executable size when linking with static library.
    */
    static void InitAllTypeHandlers();

    //@{
    /** Inserts property to the property container.

        @param priorThis
        New property is inserted just prior to this. Available only
        in the first variant. There are two versions of this function
        to allow this parameter to be either an id or name to
        a property.

        @param newproperty
        Pointer to the inserted property. wxPropertyGrid will take
        ownership of this object.

        @param parent
        New property is inserted under this category. Available only
        in the second variant. There are two versions of this function
        to allow this parameter to be either an id or name to
        a property.

        @param index
        Index under category. Available only in the second variant.
        If index is < 0, property is appended in category.

        @return
        Returns id for the property,

        @remarks

        - wxPropertyGrid takes the ownership of the property pointer.

        - While Append may be faster way to add items, make note that when
          both types of data storage (categoric and
          non-categoric) are active, Insert becomes even more slow. This is
          especially true if current mode is non-categoric.

        Example of use:

        @code

            // append category
            wxPGProperty* my_cat_id = propertygrid->Append( new wxPropertyCategory("My Category") );

            ...

            // insert into category - using second variant
            wxPGProperty* my_item_id_1 = propertygrid->Insert( my_cat_id, 0, new wxStringProperty("My String 1") );

            // insert before to first item - using first variant
            wxPGProperty* my_item_id_2 = propertygrid->Insert( my_item_id, new wxStringProperty("My String 2") );

        @endcode

    */
    wxPGProperty* Insert( wxPGPropArg priorThis, wxPGProperty* newproperty );
    wxPGProperty* Insert( wxPGPropArg parent, int index, wxPGProperty* newproperty );
    //@}

    /** Returns true if property is a category. */
    bool IsPropertyCategory( wxPGPropArg id ) const
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(false)
        return p->IsCategory();
    }

    /** Inserts choice to a property that can accept one.

        See AddPropertyChoice for more details.
    */
    void InsertPropertyChoice( wxPGPropArg id, const wxString& label, int index, int value = wxPG_INVALID_VALUE );

    /** Returns true if property is enabled. */
    bool IsPropertyEnabled( wxPGPropArg id ) const
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(false)
        return (!(p->GetFlags() & wxPG_PROP_DISABLED))?true:false;
    }

    /** Returns true if given property is expanded. Naturally, always returns false
        for properties that cannot be expanded.
    */
    bool IsPropertyExpanded( wxPGPropArg id ) const;

    /** Returns true if property has been modified after value set or modify flag
        clear by software.
    */
    bool IsPropertyModified( wxPGPropArg id ) const
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(false)
        return ( (p->GetFlags() & wxPG_PROP_MODIFIED) ? true : false );
    }

    /** Returns true if property is shown (ie. hideproperty with true not called for it). */
    bool IsPropertyShown( wxPGPropArg id ) const
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(false)
        return (!(p->GetFlags() & wxPG_PROP_HIDDEN))?true:false;
    }

    /** Returns true if property value is set to unspecified.
    */
    bool IsPropertyValueUnspecified( wxPGPropArg id ) const
    {
        wxPG_PROP_ARG_CALL_PROLOG_RETVAL(false)
        return p->IsValueUnspecified();
    }

    /** Disables (limit = true) or enables (limit = false) wxTextCtrl editor of a property,
        if it is not the sole mean to edit the value.
    */
    void LimitPropertyEditing( wxPGPropArg id, bool limit = true );

    /** If state is shown in it's grid, refresh it now.
    */
    virtual void RefreshGrid();

    /** Initializes additional property editors (SpinCtrl etc.). Causes references
        to most object files in the library, so calling this may cause significant increase
        in executable size when linking with static library.
    */
    static void RegisterAdditionalEditors();

    /** Replaces property with id with newly created property. For example,
        this code replaces existing property named "Flags" with one that
        will have different set of items:
        @code
            pg->ReplaceProperty("Flags",
                wxFlagsProperty("Flags", wxPG_LABEL, newItems))
        @endcode
        For more info, see wxPropertyGrid::Insert.
    */
    wxPGProperty* ReplaceProperty( wxPGPropArg id, wxPGProperty* property );


    /** @anchor propgridinterface_editablestate_flags

        Flags for wxPropertyGridInterface::SaveEditableState() and
        wxPropertyGridInterface::RestoreEditableState().
    */
    enum EditableStateFlags
    {
        /** Include selected property. */
        SelectionState   = 0x01,
        /** Include expanded/collapsed property information. */
        ExpandedState    = 0x02,
        /** Include scrolled position. */
        ScrollPosState   = 0x04,
        /** Include selected page information. Only applies to wxPropertyGridManager. */
        PageState        = 0x08,
        /** Include splitter position. Stored for each page. */
        SplitterPosState = 0x10,

        /** Include all supported user editable state information. This is usually the default value. */
        AllStates        = SelectionState | ExpandedState | ScrollPosState | PageState | SplitterPosState
    };

    /** Restores user-editable state. See also wxPropertyGridInterface::SaveEditableState().

        @param src
        String generated by SaveEditableState.

        @param restoreStates
        Which parts to restore from source string. See @ref propgridinterface_editablestate_flags
        "list of editable state flags".

        @return
        False if there was problem reading the string.

        @remarks
        If some parts of state (such as scrolled or splitter position) fail to restore correctly,
        please make sure that you call this function after wxPropertyGrid size has been set
        (this may sometimes be tricky when sizers are used).
    */
    bool RestoreEditableState( const wxString& src,
                               int restoreStates = AllStates );

    /** Used to acquire user-editable state (selected property, expanded properties, scrolled position,
        splitter positions).

        @param includedStates
        Which parts of state to include. See @ref propgridinterface_editablestate_flags
        "list of editable state flags".
    */
    wxString SaveEditableState( int includedStates = AllStates ) const;

    /** Lets user to set the strings listed in the choice dropdown of a wxBoolProperty.
        Defaults are "True" and "False", so changing them to, say, "Yes" and "No" may
        be useful in some less technical applications.
    */
    static void SetBoolChoices( const wxString& trueChoice, const wxString& falseChoice );

    /** Sets or clears flag(s) of all properties in given array.
        @param flags
        Property flags to set or clear.
        @param inverse
        Set to true if you want to clear flag instead of setting them.
    */
    void SetPropertiesFlag( const wxArrayPGProperty& srcArr, wxPGProperty::FlagType flags,
                            bool inverse = false );

    /** Sets an attribute for this property.
        @param name
        Text identifier of attribute. See @ref propgrid_property_attributes.
        @param value
        Value of attribute.
        @param argFlags
        Optional. Use wxPG_RECURSE to set the attribute to child properties recursively.
    */
    void SetPropertyAttribute( wxPGPropArg id, const wxString& attrName, wxVariant value, long argFlags = 0 )
    {
        DoSetPropertyAttribute(id,attrName,value,argFlags);
    }

    /** Sets attributes from a wxPGAttributeStorage.
    */
    void SetPropertyAttributes( wxPGPropArg id, const wxPGAttributeStorage& attributes )
    {
        wxPG_PROP_ARG_CALL_PROLOG()
        p->SetAttributes(attributes);
    }

    /** Sets text, bitmap, and colours for given column's cell.

        @remarks
        - You can set label cell by setting column to 0.
        - You can use wxPG_LABEL as text to use default text for column.
    */
    void SetPropertyCell( wxPGPropArg id,
                          int column,
                          const wxString& text = wxEmptyString,
                          const wxBitmap& bitmap = wxNullBitmap,
                          const wxColour& fgCol = wxNullColour,
                          const wxColour& bgCol = wxNullColour )
    {
        wxPG_PROP_ARG_CALL_PROLOG()
        p->SetCell( column, new wxPGCell(text, bitmap, fgCol, bgCol) );
    }

    /** Set choices of a property to specified set of labels and values.

        @remarks
        This operation clears the property value.
    */
    void SetPropertyChoices( wxPGPropArg id, wxPGChoices& choices)
    {
        wxPG_PROP_ARG_CALL_PROLOG()
        p->SetChoices(choices);
    }


    /** If property's set of choices is shared, then calling this method converts
        it to private.
    */
    void SetPropertyChoicesExclusive( wxPGPropArg id )
    {
        wxPG_PROP_ARG_CALL_PROLOG()
        p->SetChoicesExclusive();
    }

    /** Sets client data (void*) of a property.
        @remarks
        This untyped client data has to be deleted manually.
    */
    void SetPropertyClientData( wxPGPropArg id, void* clientData )
    {
        wxPG_PROP_ARG_CALL_PROLOG()
        p->SetClientData(clientData);
    }

    /** Sets editor for a property.

        @param editor
        For builtin editors, use wxPGEditor_X, where X is builtin editor's
        name (TextCtrl, Choice, etc. see wxPGEditor documentation for full list).

        For custom editors, use pointer you received from wxPropertyGrid::RegisterEditorClass().
    */
    void SetPropertyEditor( wxPGPropArg id, const wxPGEditor* editor )
    {
        wxPG_PROP_ARG_CALL_PROLOG()
        wxCHECK_RET( editor, wxT("unknown/NULL editor") );
        p->SetEditor(editor);
        RefreshProperty(p);
    }

    /** Sets editor control of a property. As editor argument, use
        editor name string, such as "TextCtrl" or "Choice".
    */
    void SetPropertyEditor( wxPGPropArg id, const wxString& editorName )
    {
        SetPropertyEditor(id,GetEditorByName(editorName));
    }

    /** Sets label of a property.
        @remarks
        This is the only way to set property's name. There is not
        wxPGProperty::SetLabel() method.
    */
    void SetPropertyLabel( wxPGPropArg id, const wxString& newproplabel );

    /** Set modified status of a property and all its children.
    */
    void SetPropertyModifiedStatus( wxPGPropArg id, bool modified )
    {
        wxPG_PROP_ARG_CALL_PROLOG()
        p->SetModifiedStatus(modified);
    }

    /** Sets property (and, recursively, its children) to have read-only value. In other words,
        user cannot change the value in the editor, but they can still copy it.
        @remarks
        This is mainly for use with textctrl editor. Not all other editors fully
        support it.
        @param flags
        By default changes are applied recursively. Set this paramter wxPG_DONT_RECURSE to prevent this.
    */
    void SetPropertyReadOnly( wxPGPropArg id, bool set = true, int flags = wxPG_RECURSE )
    {
        wxPG_PROP_ARG_CALL_PROLOG()
        if ( flags & wxPG_RECURSE )
            p->SetFlagRecursively(wxPG_PROP_READONLY, set);
        else
            p->SetFlag(wxPG_PROP_READONLY);
    }

    /** Sets property's value to unspecified. If it has children (it may be category),
        then the same thing is done to them.
    */
    void SetPropertyValueUnspecified( wxPGPropArg id );

    /** Sets various property values from a list of wxVariants. If property with
        name is missing from the grid, new property is created under given default
        category (or root if omitted).
    */
    void SetPropertyValues( const wxVariantList& list, wxPGPropArg defaultCategory = wxNullProperty )
    {
        wxPGProperty *p;
        if ( defaultCategory.HasName() ) p = defaultCategory.GetPtr(this);
        else p = defaultCategory.GetPtr0();
        m_pState->DoSetPropertyValues(list, p);
    }

    void SetPropertyValues( const wxVariant& list, wxPGPropArg defaultCategory = wxNullProperty )
    {
        SetPropertyValues(list.GetList(),defaultCategory);
    }

    /** Associates the help string with property.
        @remarks
        By default, text is shown either in the manager's "description"
        text box or in the status bar. If extra window style wxPG_EX_HELP_AS_TOOLTIPS
        is used, then the text will appear as a tooltip.
    */
    void SetPropertyHelpString( wxPGPropArg id, const wxString& helpString )
    {
        wxPG_PROP_ARG_CALL_PROLOG()
        p->SetHelpString(helpString);
    }

    /** Set wxBitmap in front of the value.
        @remarks
        - Bitmap will be scaled to a size returned by wxPropertyGrid::GetImageSize();
    */
    void SetPropertyImage( wxPGPropArg id, wxBitmap& bmp )
    {
        wxPG_PROP_ARG_CALL_PROLOG()
        p->SetValueImage(bmp);
        RefreshProperty(p);
    }

    /** Sets max length of property's text.
    */
    bool SetPropertyMaxLength( wxPGPropArg id, int maxLen );

    /** Sets validator of a property.
    */
    void SetPropertyValidator( wxPGPropArg id, const wxValidator& validator )
    {
        wxPG_PROP_ARG_CALL_PROLOG()
        p->SetValidator(validator);
    }

    /** Sets value (long integer) of a property.
    */
    void SetPropertyValue( wxPGPropArg id, long value )
    {
        wxVariant v(value);
        SetPropVal( id, v );
    }

    /** Sets value (integer) of a property.
    */
    void SetPropertyValue( wxPGPropArg id, int value )
    {
        wxVariant v((long)value);
        SetPropVal( id, v );
    }
    /** Sets value (floating point) of a property.
    */
    void SetPropertyValue( wxPGPropArg id, double value )
    {
        wxVariant v(value);
        SetPropVal( id, v );
    }
    /** Sets value (bool) of a property.
    */
    void SetPropertyValue( wxPGPropArg id, bool value )
    {
        wxVariant v(value);
        SetPropVal( id, v );
    }
    void SetPropertyValue( wxPGPropArg id, const wxChar* value )
    {
        SetPropertyValueString( id, wxString(value) );
    }
    void SetPropertyValue( wxPGPropArg id, const wxString& value )
    {
        SetPropertyValueString( id, value );
    }

    /** Sets value (wxArrayString) of a property.
    */
    void SetPropertyValue( wxPGPropArg id, const wxArrayString& value )
    {
        wxVariant v(value);
        SetPropVal( id, v );
    }

    void SetPropertyValue( wxPGPropArg id, const wxDateTime& value )
    {
        wxVariant v(value);
        SetPropVal( id, v );
    }

    /** Sets value (wxObject*) of a property.
    */
    void SetPropertyValue( wxPGPropArg id, wxObject* value )
    {
        wxVariant v(value);
        SetPropVal( id, v );
    }

    void SetPropertyValue( wxPGPropArg id, wxObject& value )
    {
        wxVariant v(&value);
        SetPropVal( id, v );
    }

    /** Sets value (wxPoint&) of a property.
    */
    void SetPropertyValue( wxPGPropArg id, const wxPoint& value )
    {
        wxVariant v = WXVARIANT(value);
        SetPropVal( id, v );
    }
    /** Sets value (wxSize&) of a property.
    */
    void SetPropertyValue( wxPGPropArg id, const wxSize& value )
    {
        wxVariant v = WXVARIANT(value);
        SetPropVal( id, v );
    }
    /** Sets value (wxLongLong&) of a property.
    */
    void SetPropertyValue( wxPGPropArg id, wxLongLong_t value )
    {
        wxVariant v = WXVARIANT(wxLongLong(value));
        SetPropVal( id, v );
    }
    /** Sets value (wxULongLong&) of a property.
    */
    void SetPropertyValue( wxPGPropArg id, wxULongLong_t value )
    {
        wxVariant v = WXVARIANT(wxULongLong(value));
        SetPropVal( id, v );
    }
    /** Sets value (wxArrayInt&) of a property.
    */
    void SetPropertyValue( wxPGPropArg id, const wxArrayInt& value )
    {
        wxVariant v = WXVARIANT(value);
        SetPropVal( id, v );
    }

    /** Sets value (wxString) of a property.

        @remarks
        This method uses wxPGProperty::SetValueFromString, which all properties
        should implement. This means that there should not be a type error,
        and instead the string is converted to property's actual value type.
    */
    void SetPropertyValueString( wxPGPropArg id, const wxString& value );

    /** Sets value (wxVariant&) of a property.
    
        @remarks
        Use wxPropertyGrid::ChangePropertyValue() instead if you need to run through
        validation process and send property change event.
    */
    void SetPropertyValue( wxPGPropArg id, wxVariant value )
    {
        SetPropVal( id, value );
    }

    /** Adjusts how wxPropertyGrid behaves when invalid value is entered
        in a property.
        @param vfbFlags
        See @link vfbflags list of valid flags values@endlink
    */
    void SetValidationFailureBehavior( int vfbFlags );

    // GetPropertyByName With nice assertion error message.
    wxPGProperty* GetPropertyByNameA( const wxString& name ) const;

    static wxPGEditor* GetEditorByName( const wxString& editorName );
    
    virtual void RefreshProperty( wxPGProperty* p ) = 0;
};