LCOV - code coverage report
Current view: top level - libreoffice/sfx2/inc/sfx2 - itemconnect.hxx (source / functions) Hit Total Coverage
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Date: 2012-12-27 Functions: 0 2 0.0 %
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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef SFX_ITEMCONNECT_HXX
      21             : #define SFX_ITEMCONNECT_HXX
      22             : 
      23             : #include "sal/config.h"
      24             : #include "sfx2/dllapi.h"
      25             : 
      26             : #include <memory>
      27             : #include <sfx2/itemwrapper.hxx>
      28             : #include <sfx2/controlwrapper.hxx>
      29             : 
      30             : // ============================================================================
      31             : 
      32             : namespace sfx {
      33             : 
      34             : // ============================================================================
      35             : 
      36             : typedef int ItemConnFlags;
      37             : 
      38             : /** No special state for the connection. */
      39             : const ItemConnFlags ITEMCONN_NONE               = 0x0000;
      40             : 
      41             : /** Connection is inactive - virtual functions will not be called. */
      42             : const ItemConnFlags ITEMCONN_INACTIVE           = 0x0001;
      43             : 
      44             : /** Enable control(s), if the item is known. */
      45             : const ItemConnFlags ITEMCONN_ENABLE_KNOWN       = 0x0010;
      46             : /** Disable control(s), if the item is unknown. */
      47             : const ItemConnFlags ITEMCONN_DISABLE_UNKNOWN    = 0x0020;
      48             : /** Show control(s), if the item is known. */
      49             : const ItemConnFlags ITEMCONN_SHOW_KNOWN         = 0x0040;
      50             : /** Hide control(s), if the item is unknown. */
      51             : const ItemConnFlags ITEMCONN_HIDE_UNKNOWN       = 0x0080;
      52             : 
      53             : /** Default value for constructors. */
      54             : const ItemConnFlags ITEMCONN_DEFAULT            = ITEMCONN_NONE;
      55             : 
      56             : // ============================================================================
      57             : // Base connection classes
      58             : // ============================================================================
      59             : 
      60             : /** A helper for SfxTabPages to connect controls to items.
      61             : 
      62             :     This is the base class of all control connection classes. Their purpose is
      63             :     to connect one or more controls from an SfxTabPage with an item from an
      64             :     item set. The goal is to omit any additional code in the virtual functions
      65             :     Reset() and FillItemSet() in classes derived from SfxTabPage.
      66             : 
      67             :     Examples of connections:
      68             :     - A check box with an SfxBoolItem,
      69             :     - A metric (spin) field with an SfxInt32Item.
      70             :     - A group of radio buttons with an SfxEnumItem.
      71             : 
      72             :     Each SfxTabPage will contain a list of connection objects (derived from
      73             :     this class). The connection objects remember the item and control(s) they
      74             :     have to work on. The SfxTabPage will call the DoApplyFlags(), DoReset(),
      75             :     and DoFillItemSet() functions of all connection objects it knows. The code
      76             :     to initialize control(s) from the item value and fill the item from
      77             :     control(s) has to be written only once for each control type.
      78             : 
      79             :     Additional flags passed in the constructor allow to control the behaviour
      80             :     of the control(s) if the item is supported/unsupported in the currently
      81             :     used item set. For example, it is possible to specify that a control will
      82             :     be disabled or hidden if the item is not supported. This is done before
      83             :     each call of Reset().
      84             : 
      85             :     The special flag ITEMCONN_CLONE_ITEM controls how to create new items in
      86             :     the DoFillItemSet() function. The standard (and faster) method is to create
      87             :     a temporary item on the stack and put it into the item set. But this does
      88             :     not work if the item set expects a special item type derived from a common
      89             :     item class, i.e. a Boolean item derived from SfxBoolItem providing special
      90             :     item representation text. As this code does not know the item type, the
      91             :     item cannot be created on the stack. For this case the flag specifies to
      92             :     use the virtual Clone() method of the pool default item. This will create
      93             :     an item of the correct type but can still be used in conjunction with i.e.
      94             :     the standard BoolItemWrapper.
      95             : 
      96             :     How to use the item connection feature:
      97             : 
      98             :     A)  Single item <-> single control connection
      99             : 
     100             :         Example: An SfxBoolItem and a check box.
     101             : 
     102             :         A1) Create a new item wrapper class derived from the SingleItemWrapper
     103             :             template, or use the template directly, or use one of the
     104             :             predefined item wrappers. See documentation of the
     105             :             SingleItemWrapper template for details (itemwrapper.hxx).
     106             :         A2) Create a new control wrapper class derived from the
     107             :             SingleControlWrapper template and implement the abstract functions,
     108             :             or use one of the predefined control wrappers. See documentation of
     109             :             the SingleControlWrapper template for details (controlwrapper.hxx).
     110             :         A3) Create a new connection class derived from one of the following
     111             :             base classes, and implement the abstract functions, or use the
     112             :             ItemControlConnection template directly, or use one of the
     113             :             predefined connections.
     114             :         A4) Create connection objects in the constructor of the tab page, and
     115             :             insert them into the tab page with SfxTabPage::AddItemConnection().
     116             :         A5) Remove old code from the tab page's Reset() and FillItemSet()
     117             :             functions, if necessary.
     118             : 
     119             :     B)  Single item <-> multiple controls connections
     120             : 
     121             :         B1) See step A1. If the item contains multiple values (and not a
     122             :             structure that contains all the values for the different controls),
     123             :             the best way is to use the IdentItemWrapper template, that works
     124             :             with the item itself. This way it is possible to provide a 'data
     125             :             type' that contains the values for all controls.
     126             :         B2) Create a new control wrapper class derived from the
     127             :             MultiControlWrapper template. Add single control wrapper members
     128             :             for all controls to this class and register them in the
     129             :             constructor, using the RegisterControlWrapper() function. Implement
     130             :             the abstract functions GetControlValue() and SetControlValue().
     131             :             These functions should call the respective functions of the own
     132             :             single control wrappers and either fill a new data object (the item
     133             :             itself in most cases, see step B1) with all the values from the
     134             :             controls, or fill all the controls from the data object.
     135             :         B3) Create a new connection class derived from ItemControlConnection,
     136             :             or use the ItemControlConnection template directly. The multiple
     137             :             control wrapper from step B2 acts like a single control, therefore
     138             :             it is possible to use the ItemControlConnection.
     139             :         B4) See steps A4 and A5.
     140             : 
     141             :     C)  Multiple items <-> single control connections
     142             : 
     143             :         todo
     144             : 
     145             :     D)  Multiple items <-> multiple controls connections
     146             : 
     147             :         todo
     148             : 
     149             :     The current tree of base classes/templates and standard connections:
     150             : 
     151             :     ItemConnectionBase
     152             :      |
     153             :      +- DummyItemConnection   [1]
     154             :      |
     155             :      +- ItemControlConnection< ItemWrpT, ControlWrpT >
     156             :      |   |
     157             :      |   +- CheckBoxConnection   [1]
     158             :      |   |
     159             :      |   +- NumericConnection< ItemWrpT >   [1]
     160             :      |   |   |
     161             :      |   |   +- [ValueType]NumericConnection   [1] [2]
     162             :      |   |
     163             :      |   +- MetricConnection< ItemWrpT >   [1]
     164             :      |   |   |
     165             :      |   |   +- [ValueType]MetricConnection   [1] [2]
     166             :      |   |
     167             :      |   +- ListBoxConnection< ItemWrpT >   [1]
     168             :      |   |   |
     169             :      |   |   +- [ValueType]ListBoxConnection   [1] [2]
     170             :      |   |
     171             :      |   +- ValueSetConnection< ItemWrpT >   [1]
     172             :      |       |
     173             :      |       +- [ValueType]ValueSetConnection   [1] [2]
     174             :      |
     175             :      +- ItemConnectionArray   [1]
     176             : 
     177             :     Notes:
     178             :     [1] Standard connections ready to use.
     179             :     [2] [ValueType] is one of Int16, UInt16, Int32, UInt32.
     180             :  */
     181             : class SFX2_DLLPUBLIC ItemConnectionBase
     182             : {
     183             : public:
     184             :     virtual             ~ItemConnectionBase();
     185             : 
     186             :     /** Returns the flags passed in the constructor. */
     187             :     inline ItemConnFlags GetFlags() const { return mnFlags; }
     188             : 
     189             :     /** Returns true if this connection is active. */
     190             :     bool                IsActive() const;
     191             : 
     192             :     /** Calls the virtual ApplyFlags() function, if connection is active. */
     193             :     void                DoApplyFlags( const SfxItemSet& rItemSet );
     194             :     /** Calls the virtual Reset() function, if connection is active. */
     195             :     void                DoReset( const SfxItemSet& rItemSet );
     196             :     /** Calls the virtual FillItemSet() function, if connection is active. */
     197             :     bool                DoFillItemSet( SfxItemSet& rDestSet, const SfxItemSet& rOldSet );
     198             : 
     199             : protected:
     200             :     explicit            ItemConnectionBase( ItemConnFlags nFlags = ITEMCONN_DEFAULT );
     201             : 
     202             :     /** Derived classes implement actions according to current flags here. */
     203             :     virtual void        ApplyFlags( const SfxItemSet& rItemSet ) = 0;
     204             :     /** Derived classes implement initializing controls from item sets here. */
     205             :     virtual void        Reset( const SfxItemSet& rItemSet ) = 0;
     206             :     /** Derived classes implement filling item sets from controls here. */
     207             :     virtual bool        FillItemSet( SfxItemSet& rDestSet, const SfxItemSet& rOldSet ) = 0;
     208             : 
     209             :     /** Returns whether to enable a control, according to current flags. */
     210             :     TriState            GetEnableState( bool bKnown ) const;
     211             :     /** Returns whether to show a control, according to current flags. */
     212             :     TriState            GetShowState( bool bKnown ) const;
     213             : 
     214             : private:
     215             :     /* Disable copy c'tor and assignment. */
     216             :                         ItemConnectionBase( const ItemConnectionBase& );
     217             :     ItemConnectionBase& operator=( const ItemConnectionBase& );
     218             : 
     219             :     ItemConnFlags       mnFlags;    /// Flags for additional options.
     220             : };
     221             : 
     222             : // ----------------------------------------------------------------------------
     223             : 
     224             : /** Base class template for single item <-> single control connection objects.
     225             : 
     226             :     This template uses functions provided by the SingleItemWrapper and the
     227             :     SingleControlWrapper template classes. The virtual functions ApplyFlags(),
     228             :     Reset(), and FillItemSet() are implemented here in a generic way using the
     229             :     virtual functions of the wrapper classes. Derived classes only have to
     230             :     create or otherwise provide appropriate wrappers.
     231             :  */
     232             : template< typename ItemWrpT, typename ControlWrpT >
     233             : class ItemControlConnection : public ItemConnectionBase
     234             : {
     235             : public:
     236             :     typedef ItemWrpT                                        ItemWrapperType;
     237             :     typedef ControlWrpT                                     ControlWrapperType;
     238             :     typedef ItemControlConnection< ItemWrpT, ControlWrpT >  ItemControlConnectionType;
     239             :     typedef typename ItemWrpT::ItemType                     ItemType;
     240             :     typedef typename ItemWrpT::ItemValueType                ItemValueType;
     241             :     typedef typename ControlWrpT::ControlType               ControlType;
     242             :     typedef typename ControlWrpT::ControlValueType          ControlValueType;
     243             : 
     244             :     typedef std::auto_ptr< ItemWrpT >                       ItemWrapperRef;
     245             :     typedef std::auto_ptr< ControlWrpT >                    ControlWrapperRef;
     246             : 
     247             :     /** Receives pointer to a newly created control wrapper.
     248             :         @descr  Takes ownership of the control wrapper. */
     249             :     explicit            ItemControlConnection( sal_uInt16 nSlot, ControlWrpT* pNewCtrlWrp,
     250             :                             ItemConnFlags nFlags = ITEMCONN_DEFAULT );
     251             : 
     252             :     /** Convenience constructor. Receives reference to a control directly.
     253             :         @descr  May only be used, if ControlWrpT::ControlWrpT( ControlType& )
     254             :         constructor exists. */
     255             :     explicit            ItemControlConnection( sal_uInt16 nSlot, ControlType& rControl,
     256             :                             ItemConnFlags nFlags = ITEMCONN_DEFAULT );
     257             : 
     258             :     virtual             ~ItemControlConnection();
     259             : 
     260             : protected:
     261             :     /** Actions according to current flags for the control. */
     262             :     virtual void        ApplyFlags( const SfxItemSet& rItemSet );
     263             :     /** Resets the control according to the item contents. */
     264             :     virtual void        Reset( const SfxItemSet& rItemSet );
     265             :     /** Fills the item set according to the control's state. */
     266             :     virtual bool        FillItemSet( SfxItemSet& rDestSet, const SfxItemSet& rOldSet );
     267             : 
     268             :     ItemWrapperType     maItemWrp;
     269             :     ControlWrapperRef   mxCtrlWrp;
     270             : };
     271             : 
     272             : // ============================================================================
     273             : // Standard connections
     274             : // ============================================================================
     275             : 
     276             : /** This is a helper class to enable/disable/show/hide a control only.
     277             : 
     278             :     This class does nothing special in the Reset() and FillItemSet() functions.
     279             :     It can be used to control the visibility of i.e. fixed lines or fixed texts
     280             :     related to the availability of an item by passing the appropriate flags to
     281             :     the constructor of this connection.
     282             :  */
     283           0 : class SFX2_DLLPUBLIC DummyItemConnection:
     284             :     public ItemConnectionBase, public DummyWindowWrapper
     285             : {
     286             : public:
     287             :     explicit            DummyItemConnection( sal_uInt16 nSlot, Window& rWindow,
     288             :                             ItemConnFlags nFlags = ITEMCONN_DEFAULT );
     289             : 
     290             : protected:
     291             :     virtual void        ApplyFlags( const SfxItemSet& rItemSet );
     292             :     virtual void        Reset( const SfxItemSet& rItemSet );
     293             :     virtual bool        FillItemSet( SfxItemSet& rDestSet, const SfxItemSet& rOldSet );
     294             : 
     295             : private:
     296             :     sal_uInt16              mnSlot;
     297             : };
     298             : 
     299             : // ----------------------------------------------------------------------------
     300             : 
     301             : /** Connection between an SfxBoolItem and a VCL CheckBox. */
     302             : typedef ItemControlConnection< BoolItemWrapper, CheckBoxWrapper > CheckBoxConnection;
     303             : 
     304             : // ============================================================================
     305             : 
     306             : /** Connection between an item and the VCL NumericField. */
     307             : template< typename ItemWrpT >
     308             : class NumericConnection : public ItemControlConnection< ItemWrpT,
     309             :         NumericFieldWrapper< typename ItemWrpT::ItemValueType > >
     310             : {
     311             :     typedef ItemControlConnection< ItemWrpT,
     312             :         NumericFieldWrapper< typename ItemWrpT::ItemValueType > >
     313             :     ItemControlConnectionType;
     314             : 
     315             : public:
     316             :     typedef typename ItemControlConnectionType::ControlWrapperType NumericFieldWrapperType;
     317             : 
     318             :     explicit            NumericConnection( sal_uInt16 nSlot, NumericField& rField,
     319             :                             ItemConnFlags nFlags = ITEMCONN_DEFAULT );
     320             : };
     321             : 
     322             : // ----------------------------------------------------------------------------
     323             : 
     324             : typedef NumericConnection< Int16ItemWrapper  > Int16NumericConnection;
     325             : typedef NumericConnection< UInt16ItemWrapper > UInt16NumericConnection;
     326             : typedef NumericConnection< Int32ItemWrapper  > Int32NumericConnection;
     327             : typedef NumericConnection< UInt32ItemWrapper > UInt32NumericConnection;
     328             : 
     329             : // ============================================================================
     330             : 
     331             : /** Connection between an item and the VCL MetricField.
     332             : 
     333             :     Adds support of different field units during control value <-> item value
     334             :     conversion. The field unit passed to the constructor applies for the item
     335             :     values, while the field unit used in the control has to be set at the
     336             :     control itself.
     337             :  */
     338             : template< typename ItemWrpT >
     339             : class MetricConnection : public ItemControlConnection< ItemWrpT,
     340             :         MetricFieldWrapper< typename ItemWrpT::ItemValueType > >
     341             : {
     342             :     typedef ItemControlConnection< ItemWrpT,
     343             :         MetricFieldWrapper< typename ItemWrpT::ItemValueType > >
     344             :     ItemControlConnectionType;
     345             : 
     346             : public:
     347             :     typedef typename ItemControlConnectionType::ControlWrapperType MetricFieldWrapperType;
     348             : 
     349             :     explicit            MetricConnection( sal_uInt16 nSlot, MetricField& rField,
     350             :                             FieldUnit eItemUnit = FUNIT_NONE, ItemConnFlags nFlags = ITEMCONN_DEFAULT );
     351             : };
     352             : 
     353             : // ----------------------------------------------------------------------------
     354             : 
     355             : typedef MetricConnection< Int16ItemWrapper  > Int16MetricConnection;
     356             : typedef MetricConnection< UInt16ItemWrapper > UInt16MetricConnection;
     357             : typedef MetricConnection< Int32ItemWrapper  > Int32MetricConnection;
     358             : typedef MetricConnection< UInt32ItemWrapper > UInt32MetricConnection;
     359             : 
     360             : // ============================================================================
     361             : 
     362             : /** Connection between an item and a VCL ListBox.
     363             : 
     364             :     Optionally a map can be passed that maps list box positions to item values.
     365             :     This map MUST be terminated with an entry containing LISTBOX_ENTRY_NOTFOUND
     366             :     as list box position. The item value contained in this last entry is used
     367             :     as default item value in case of an error.
     368             :  */
     369             : template< typename ItemWrpT >
     370             : class ListBoxConnection : public ItemControlConnection< ItemWrpT,
     371             :         ListBoxWrapper< typename ItemWrpT::ItemValueType > >
     372             : {
     373             :     typedef ItemControlConnection< ItemWrpT,
     374             :         ListBoxWrapper< typename ItemWrpT::ItemValueType > >
     375             :     ItemControlConnectionType;
     376             : 
     377             : public:
     378             :     typedef typename ItemControlConnectionType::ControlWrapperType  ListBoxWrapperType;
     379             :     typedef typename ListBoxWrapperType::MapEntryType               MapEntryType;
     380             : 
     381             :     explicit            ListBoxConnection( sal_uInt16 nSlot, ListBox& rListBox,
     382             :                             const MapEntryType* pMap = 0, ItemConnFlags nFlags = ITEMCONN_DEFAULT );
     383             : };
     384             : 
     385             : // ----------------------------------------------------------------------------
     386             : 
     387             : typedef ListBoxConnection< Int16ItemWrapper >  Int16ListBoxConnection;
     388             : typedef ListBoxConnection< UInt16ItemWrapper > UInt16ListBoxConnection;
     389             : typedef ListBoxConnection< Int32ItemWrapper >  Int32ListBoxConnection;
     390             : typedef ListBoxConnection< UInt32ItemWrapper > UInt32ListBoxConnection;
     391             : 
     392             : // ============================================================================
     393             : 
     394             : /** Connection between an item and an SVTOOLS ValueSet.
     395             : 
     396             :     Optionally a map can be passed that maps value set identifiers to item
     397             :     values. This map MUST be terminated with an entry containing
     398             :     VALUESET_ITEM_NOTFOUND as value set identifier. The item value contained in
     399             :     this last entry is used as default item value in case of an error.
     400             :  */
     401             : template< typename ItemWrpT >
     402             : class ValueSetConnection : public ItemControlConnection< ItemWrpT,
     403             :         ValueSetWrapper< typename ItemWrpT::ItemValueType > >
     404             : {
     405             :     typedef ItemControlConnection< ItemWrpT,
     406             :         ValueSetWrapper< typename ItemWrpT::ItemValueType > >
     407             :     ItemControlConnectionType;
     408             : 
     409             : public:
     410             :     typedef typename ItemControlConnectionType::ControlWrapperType  ValueSetWrapperType;
     411             :     typedef typename ValueSetWrapperType::MapEntryType              MapEntryType;
     412             : 
     413             :     explicit            ValueSetConnection( sal_uInt16 nSlot, ValueSet& rValueSet,
     414             :                             const MapEntryType* pMap = 0, ItemConnFlags nFlags = ITEMCONN_DEFAULT );
     415             : };
     416             : 
     417             : // ----------------------------------------------------------------------------
     418             : 
     419             : typedef ValueSetConnection< Int16ItemWrapper >  Int16ValueSetConnection;
     420             : typedef ValueSetConnection< UInt16ItemWrapper > UInt16ValueSetConnection;
     421             : typedef ValueSetConnection< Int32ItemWrapper >  Int32ValueSetConnection;
     422             : typedef ValueSetConnection< UInt32ItemWrapper > UInt32ValueSetConnection;
     423             : 
     424             : // ============================================================================
     425             : // Array of connections
     426             : // ============================================================================
     427             : 
     428             : class ItemConnectionArrayImpl;
     429             : 
     430             : /** A container of connection objects.
     431             : 
     432             :     This is a connection with the only purpose to contain other connection
     433             :     objects. This way it is possible to create a tree structure of connections
     434             :     for a convenient connection management. This class is used by the class
     435             :     SfxTabPage to store all connections.
     436             :  */
     437             : class ItemConnectionArray : public ItemConnectionBase
     438             : {
     439             : public:
     440             :     explicit            ItemConnectionArray();
     441             :     virtual             ~ItemConnectionArray();
     442             : 
     443             :     /** Adds a new connection to the list.
     444             :         @descr  Takes ownership of the connection! */
     445             :     void                AddConnection( ItemConnectionBase* pConnection );
     446             : 
     447             : protected:
     448             :     virtual void        ApplyFlags( const SfxItemSet& rItemSet );
     449             :     virtual void        Reset( const SfxItemSet& rItemSet );
     450             :     virtual bool        FillItemSet( SfxItemSet& rDestSet, const SfxItemSet& rOldSet );
     451             : 
     452             : private:
     453             :     std::auto_ptr< ItemConnectionArrayImpl > mxImpl;
     454             : };
     455             : 
     456             : // ============================================================================
     457             : 
     458             : // ============================================================================
     459             : //               ***  Implementation of template functions  ***
     460             : // ============================================================================
     461             : 
     462             : // ============================================================================
     463             : // Base connection classes
     464             : // ============================================================================
     465             : 
     466             : template< typename ItemWrpT, typename ControlWrpT >
     467             : ItemControlConnection< ItemWrpT, ControlWrpT >::ItemControlConnection(
     468             :         sal_uInt16 nSlot, ControlWrpT* pNewCtrlWrp, ItemConnFlags nFlags ) :
     469             :     ItemConnectionBase( nFlags ),
     470             :     maItemWrp( nSlot ),
     471             :     mxCtrlWrp( pNewCtrlWrp )
     472             : {
     473             : }
     474             : 
     475             : template< typename ItemWrpT, typename ControlWrpT >
     476             : ItemControlConnection< ItemWrpT, ControlWrpT >::ItemControlConnection(
     477             :         sal_uInt16 nSlot, ControlType& rControl, ItemConnFlags nFlags ) :
     478             :     ItemConnectionBase( nFlags ),
     479             :     maItemWrp( nSlot ),
     480             :     mxCtrlWrp( new ControlWrpT( rControl ) )
     481             : {
     482             : }
     483             : 
     484             : template< typename ItemWrpT, typename ControlWrpT >
     485             : ItemControlConnection< ItemWrpT, ControlWrpT >::~ItemControlConnection()
     486             : {
     487             : }
     488             : 
     489             : template< typename ItemWrpT, typename ControlWrpT >
     490             : void ItemControlConnection< ItemWrpT, ControlWrpT >::ApplyFlags( const SfxItemSet& rItemSet )
     491             : {
     492             :     bool bKnown = ItemWrapperHelper::IsKnownItem( rItemSet, maItemWrp.GetSlotId() );
     493             :     mxCtrlWrp->ModifyControl( GetEnableState( bKnown ), GetShowState( bKnown ) );
     494             : }
     495             : 
     496             : template< typename ItemWrpT, typename ControlWrpT >
     497             : void ItemControlConnection< ItemWrpT, ControlWrpT >::Reset( const SfxItemSet& rItemSet )
     498             : {
     499             :     const ItemType* pItem = maItemWrp.GetUniqueItem( rItemSet );
     500             :     mxCtrlWrp->SetControlDontKnow( pItem == 0 );
     501             :     if( pItem )
     502             :         mxCtrlWrp->SetControlValue( maItemWrp.GetItemValue( *pItem ) );
     503             : }
     504             : 
     505             : template< typename ItemWrpT, typename ControlWrpT >
     506             : bool ItemControlConnection< ItemWrpT, ControlWrpT >::FillItemSet(
     507             :         SfxItemSet& rDestSet, const SfxItemSet& rOldSet )
     508             : {
     509             :     const ItemType* pOldItem = maItemWrp.GetUniqueItem( rOldSet );
     510             :     bool bChanged = false;
     511             :     if( !mxCtrlWrp->IsControlDontKnow() )
     512             :     {
     513             :         // first store the control value in a local variable
     514             :         ControlValueType aCtrlValue( mxCtrlWrp->GetControlValue() );
     515             :         // convert to item value type -> possible to convert i.e. from 'T' to 'const T&'
     516             :         ItemValueType aNewValue( aCtrlValue );
     517             :         // do not rely on existence of ItemValueType::operator!=
     518             :         if( !pOldItem || !(maItemWrp.GetItemValue( *pOldItem ) == aNewValue) )
     519             :         {
     520             :             sal_uInt16 nWhich = ItemWrapperHelper::GetWhichId( rDestSet, maItemWrp.GetSlotId() );
     521             :             std::auto_ptr< ItemType > xItem(
     522             :                 static_cast< ItemType* >( maItemWrp.GetDefaultItem( rDestSet ).Clone() ) );
     523             :             xItem->SetWhich( nWhich );
     524             :             maItemWrp.SetItemValue( *xItem, aNewValue );
     525             :             rDestSet.Put( *xItem );
     526             :             bChanged = true;
     527             :         }
     528             :     }
     529             :     if( !bChanged )
     530             :         ItemWrapperHelper::RemoveDefaultItem( rDestSet, rOldSet, maItemWrp.GetSlotId() );
     531             :     return bChanged;
     532             : }
     533             : 
     534             : // ============================================================================
     535             : // Standard connections
     536             : // ============================================================================
     537             : 
     538             : template< typename ItemWrpT >
     539             : NumericConnection< ItemWrpT >::NumericConnection(
     540             :         sal_uInt16 nSlot, NumericField& rField, ItemConnFlags nFlags ) :
     541             :     ItemControlConnectionType( nSlot, rField, nFlags )
     542             : {
     543             : }
     544             : 
     545             : // ============================================================================
     546             : 
     547             : template< typename ItemWrpT >
     548             : MetricConnection< ItemWrpT >::MetricConnection(
     549             :         sal_uInt16 nSlot, MetricField& rField, FieldUnit eItemUnit, ItemConnFlags nFlags ) :
     550             :     ItemControlConnectionType( nSlot, new MetricFieldWrapperType( rField, eItemUnit ), nFlags )
     551             : {
     552             : }
     553             : 
     554             : // ============================================================================
     555             : 
     556             : template< typename ItemWrpT >
     557             : ListBoxConnection< ItemWrpT >::ListBoxConnection(
     558             :         sal_uInt16 nSlot, ListBox& rListBox, const MapEntryType* pMap, ItemConnFlags nFlags ) :
     559             :     ItemControlConnectionType( nSlot, new ListBoxWrapperType( rListBox, pMap ), nFlags )
     560             : {
     561             : }
     562             : 
     563             : // ============================================================================
     564             : 
     565             : template< typename ItemWrpT >
     566             : ValueSetConnection< ItemWrpT >::ValueSetConnection(
     567             :         sal_uInt16 nSlot, ValueSet& rValueSet, const MapEntryType* pMap, ItemConnFlags nFlags ) :
     568             :     ItemControlConnectionType( nSlot, new ValueSetWrapperType( rValueSet, pMap ), nFlags )
     569             : {
     570             : }
     571             : 
     572             : // ============================================================================
     573             : 
     574             : } // namespace sfx
     575             : 
     576             : #endif
     577             : 
     578             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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