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[wxWidgets.git] / 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.

    - wxPropertyGridInterface's property operation member functions all accept
      a special wxPGPropArg id argument, using which you can refer to properties
      either by their pointer (for performance) or by their name (for conveniency).

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

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

    /**
        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 );

    /**
        Same as Append(), but appends under given parent property.

        @param id
            Name or pointer to parent property.

        @param newProperty
            Property to be added.
    */
    wxPGProperty* AppendIn( wxPGPropArg id, wxPGProperty* newProperty );

    /**
        In order to add new items into a property with private children (for
        instance, wxFlagsProperty), you need to call this method.
        After populating has been finished, you need to call EndAddChildren().

        @see EndAddChildren()
    */
    void BeginAddChildren( wxPGPropArg id );

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

    /**
        Deselect current selection, if any.

        @return Returns @true if success (ie. validator did not intercept).
    */
    bool ClearSelection();

    /**
        Resets modified status of all properties.
    */
    void ClearModifiedStatus();

    /**
        Collapses given category or property with children.

        @return Returns @true if actually collapsed.
    */
    bool Collapse( wxPGPropArg id );

    /**
        Collapses all items that can be collapsed.

        @return Returns @false if failed (may fail if value in active
               editor cannot be validated).
    */
    bool CollapseAll();

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

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

    /**
        Deletes a property.
    */
    void DeleteProperty( wxPGPropArg id );

    /**
        Disables a property.
    */
    bool DisableProperty( wxPGPropArg id );

    /**
        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.

        @param id
            Name or pointer to a property.
        @param enable
            If @false, property is disabled instead.
    */
    bool EnableProperty( wxPGPropArg id, bool enable = true );

    /**
        Called after population of property with fixed children has finished.

        @see BeginAddChildren()
    */
    void EndAddChildren( wxPGPropArg id );

    /**
        Expands given category or property with children.

        @return Returns @true if actually expanded.
    */
    bool Expand( wxPGPropArg id );

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

    /**
        Returns id of first child of given property.

        @remarks Does not return private children!
    */
    wxPGProperty* GetFirstChild( wxPGPropArg id );

    //@{
    /**
        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.

        @beginWxPythonOnly
        <b>wxPython Note:</b> Instead of ++ operator, use Next() method, and
        instead of * operator, use GetProperty() method.
        @endWxPythonOnly
    */
    wxPropertyGridIterator GetIterator( int flags = wxPG_ITERATE_DEFAULT,
                                        wxPGProperty* firstProp = NULL );
    wxPropertyGridConstIterator GetIterator( int flags = wxPG_ITERATE_DEFAULT,
                                             wxPGProperty* firstProp = NULL ) const;
    //@}

    //@{
    /**
        Returns iterator class instance.

        @param flags
            See @ref propgrid_iterator_flags. Value wxPG_ITERATE_DEFAULT causes
            iteration over everything except private child properties.
        @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.

        @beginWxPythonOnly
        <b>wxPython Note:</b> Instead of ++ operator, use Next() method, and
        instead of * operator, use GetProperty() method.
        @endWxPythonOnly
    */
    wxPropertyGridIterator GetIterator( int flags, int startPos );
    wxPropertyGridConstIterator GetIterator( int flags, int startPos ) const;
    //@}

    /**
        Returns id of first item that matches given criteria.

        @param flags
            See @ref propgrid_iterator_flags.
    */
    wxPGProperty* GetFirst( int flags = wxPG_ITERATE_ALL );

    /**
        Returns id of property with given name (case-sensitive).
    */
    wxPGProperty* GetProperty( const wxString& name ) const;

    /**
        Adds to 'targetArr' pointers to properties that have given flags 'flags' set.
        However, if @a 'inverse' is set to @true, then only properties without
        given flags are stored.

        @param targetArr
            @todo docme
        @param flags
            Property flags to use.
        @param inverse
            @todo docme
        @param iterFlags
            Iterator flags to use. Default is everything expect private children.
            See @ref propgrid_iterator_flags.
    */
    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 wxNullVariant.
    */
    wxVariant GetPropertyAttribute( wxPGPropArg id, const wxString& attrName ) const;

    /**
        Returns background colour of first cell of a property.
    */
    wxColour GetPropertyBackgroundColour( wxPGPropArg id ) const;

    /**
        Returns pointer of property's nearest parent category. If no category
        found, returns @NULL.
    */
    wxPropertyCategory* GetPropertyCategory( wxPGPropArg id ) const;

    /** Returns client data (void*) of a property. */
    void* GetPropertyClientData( wxPGPropArg id ) const;

    /**
        Returns first property which label matches given string. @NULL if none
        found. Note that this operation is very 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 property's editor.
    */
    const wxPGEditor* GetPropertyEditor( wxPGPropArg id ) const;

    /**
        Returns help string associated with a property.
    */
    wxString GetPropertyHelpString( wxPGPropArg id ) const;

    /**
        Returns property's custom value image (@NULL of none).
    */
    wxBitmap* GetPropertyImage( wxPGPropArg id ) const;

    /** Returns label of a property. */
    const wxString& GetPropertyLabel( wxPGPropArg id );

    /** Returns property's name, by which it is globally accessible. */
    wxString GetPropertyName( wxPGProperty* property );

    /**
        Returns text colour of first cell of a property.
    */
    wxColour GetPropertyTextColour( wxPGPropArg id ) const;

    /**
        Returns validator of a property as a reference, which you
        can pass to any number of SetPropertyValidator.
    */
    wxValidator* GetPropertyValidator( wxPGPropArg id );

    /**
        Returns property's value as wxVariant.

        If property value is unspecified, Null variant is returned.
    */
    wxVariant GetPropertyValue( wxPGPropArg id );

    /** Return's property's value as wxArrayInt. */
    wxArrayInt GetPropertyValueAsArrayInt( wxPGPropArg id ) const;

    /** Returns property's value as wxArrayString. */
    wxArrayString GetPropertyValueAsArrayString( wxPGPropArg id ) const;

    /** Returns property's value as bool */
    bool GetPropertyValueAsBool( wxPGPropArg id ) const;

    /** Return's property's value as wxDateTime. */
    wxDateTime GetPropertyValueAsDateTime( wxPGPropArg id ) const;

    /** Returns property's value as double-precision floating point number. */
    double GetPropertyValueAsDouble( wxPGPropArg id ) const;

    /** Returns property's value as integer */
    int GetPropertyValueAsInt( wxPGPropArg id ) const;

    /** Returns property's value as integer */
    long GetPropertyValueAsLong( wxPGPropArg id ) const;

    /** Returns property's value as native signed 64-bit integer. */
    wxLongLong_t GetPropertyValueAsLongLong( wxPGPropArg id ) const;

    /**
        Returns property's value as wxString. If property does not
        use string value type, then its value is converted using
        wxPGProperty::GetValueAsString().
    */
    wxString GetPropertyValueAsString( wxPGPropArg id ) const;

    /** Returns property's value as unsigned integer */
    unsigned long GetPropertyValueAsULong( wxPGPropArg id ) const;

    /** Returns property's value as native unsigned 64-bit integer. */
    wxULongLong_t GetPropertyValueAsULongLong( wxPGPropArg id ) const;

    /**
        Returns a wxVariant list containing wxVariant versions of all
        property values. Order is not guaranteed.

        @param listname
            @todo docme
        @param baseparent
            @todo docme
        @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."
    */
    wxVariant GetPropertyValues( const wxString& listname = wxEmptyString,
                                 wxPGProperty* baseparent = NULL, long flags = 0 ) const;

    /** Returns currently selected property. */
    wxPGProperty* GetSelection() const;

    /**
        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.

        <b>wxPython Note:</b> Instead of ++ operator, use Next() method, and
            instead of * operator, use GetProperty() method.
    */
    virtual wxPGVIterator GetVIterator( int flags ) const;

    /**
        Hides or reveals a property.

        @param id
            @todo docme
        @param hide
            If @true, hides property, otherwise reveals it.
        @param flags
            By default changes are applied recursively. Set this parameter
            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.

        @return Returns newProperty.

        @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 );

    /**
        Inserts property to the property container.
        See the other overload for more details.

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

        @return Returns newProperty.
    */
    wxPGProperty* Insert( wxPGPropArg parent, int index, wxPGProperty* newProperty );

    /** Returns @true if property is a category. */
    bool IsPropertyCategory( wxPGPropArg id ) const;

    /** Returns @true if property is enabled. */
    bool IsPropertyEnabled( wxPGPropArg id ) const;

    /**
        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;

    /**
        Returns @true if property is shown (ie. HideProperty() with @true not
        called for it).
    */
    bool IsPropertyShown( wxPGPropArg id ) const;

    /**
        Returns @true if property value is set to unspecified.
    */
    bool IsPropertyValueUnspecified( wxPGPropArg id ) const;

    /**
        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 );

    /**
        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 one. 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

        @see 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 description box size.
            Only applies to wxPropertyGridManager. */
        DescBoxState     = 0x20,

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

    /**
        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 Returns @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;

    /**
        Sets 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 an attribute for this property.

        @param id
            @todo docme
        @param attrName
            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.

        @remarks Setting attribute's value to Null variant will simply remove it
                 from property's set of attributes.
    */
    void SetPropertyAttribute( wxPGPropArg id, const wxString& attrName,
                               wxVariant value, long argFlags = 0 );

    /**
        Sets property attribute for all applicapple properties.
        Be sure to use this method only after all properties have been
        added to the grid.
    */
    void SetPropertyAttributeAll( const wxString& attrName, wxVariant value );

    /**
        Sets background colour of a property.

        @param id
            Property name or pointer.

        @param colour
            New background colour.

        @param recursively
            If True, child properties are affected recursively. Property
            categories are skipped if this flag is used.
    */
    void SetPropertyBackgroundColour( wxPGPropArg id,
                                      const wxColour& colour,
                                      bool recursively = true );

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

        @remarks
        - You can set label cell by using column 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 );

    /**
        Sets client data (void*) of a property.

        @remarks
        This untyped client data has to be deleted manually.
    */
    void SetPropertyClientData( wxPGPropArg id, void* clientData );

    /**
        Resets text and background colours of given property.
    */
    void SetPropertyColoursToDefault( wxPGPropArg id );

    /**
        Sets editor for a property.

        @param id
            @todo docme
        @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 );

    /**
        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 );

    /**
        Sets label of a property.

        @remarks
        - Properties under same parent may have same labels. However,
        property names must still remain unique.
    */
    void SetPropertyLabel( wxPGPropArg id, const wxString& newproplabel );

    /**
        Sets name of a property.

        @param id
            Name or pointer of property which name to change.

        @param newName
            New name for property.
    */
    void SetPropertyName( wxPGPropArg id, const wxString& newName );

    /**
        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. Only some other
                editors fully support it.

        @param id
            Property name or pointer.

        @param set
            Use @true to enable read-only, @false to disable it.

        @param flags
            By default changes are applied recursively. Set this parameter
            wxPG_DONT_RECURSE to prevent this.
    */
    void SetPropertyReadOnly( wxPGPropArg id, bool set = true,
                              int flags = wxPG_RECURSE );

    /**
        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 );

    void SetPropertyValues( const wxVariant& list,
                            wxPGPropArg defaultCategory = wxNullProperty );

    /**
        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 );

    /**
        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 );

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


    /**
        Sets text colour of a property.

        @param id
            Property name or pointer.

        @param colour
            New background colour.

        @param recursively
            If True, child properties are affected recursively. Property
            categories are skipped if this flag is used.
    */
    void SetPropertyTextColour( wxPGPropArg id,
                                const wxColour& col,
                                bool recursively = true );

    /**
        Sets validator of a property.
    */
    void SetPropertyValidator( wxPGPropArg id, const wxValidator& validator );

    /** Sets value (integer) of a property. */
    void SetPropertyValue( wxPGPropArg id, long value );

    /** Sets value (integer) of a property. */
    void SetPropertyValue( wxPGPropArg id, int value );

    /** Sets value (floating point) of a property. */
    void SetPropertyValue( wxPGPropArg id, double value );

    /** Sets value (bool) of a property. */
    void SetPropertyValue( wxPGPropArg id, bool value );

    /** Sets value (string) of a property. */
    void SetPropertyValue( wxPGPropArg id, const wxString& value );

    /** Sets value (wxArrayString) of a property. */
    void SetPropertyValue( wxPGPropArg id, const wxArrayString& value );

    /** Sets value (wxDateTime) of a property. */
    void SetPropertyValue( wxPGPropArg id, const wxDateTime& value );

    /** Sets value (wxObject*) of a property. */
    void SetPropertyValue( wxPGPropArg id, wxObject* value );

    /** Sets value (wxObject&) of a property. */
    void SetPropertyValue( wxPGPropArg id, wxObject& value );

    /** Sets value (native 64-bit int) of a property. */
    void SetPropertyValue( wxPGPropArg id, wxLongLong_t value );

    /** Sets value (native 64-bit unsigned int) of a property. */
    void SetPropertyValue( wxPGPropArg id, wxULongLong_t value );

    /** Sets value (wxArrayInt&) of a property. */
    void SetPropertyValue( wxPGPropArg id, const wxArrayInt& value );

    /**
        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 );

    /**
        Adjusts how wxPropertyGrid behaves when invalid value is entered
        in a property.

        @param vfbFlags
            See @ref propgrid_vfbflags for possible values.
    */
    void SetValidationFailureBehavior( int vfbFlags );

    /**
        Returns editor pointer of editor with given name;
    */
    static wxPGEditor* GetEditorByName( const wxString& editorName );
};