epoc32/include/mw/akntoolbar.h
branchSymbian2
changeset 2 2fe1408b6811
parent 1 666f914201fb
child 4 837f303aceeb
equal deleted inserted replaced
1:666f914201fb 2:2fe1408b6811
     1 akntoolbar.h
     1 /*
       
     2 * Copyright (c) 2005-2007 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  Popup toolbar component
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 #ifndef __AKNTOOLBAR_H__
       
    21 #define __AKNTOOLBAR_H__
       
    22 
       
    23 //  INCLUDES
       
    24 #include <avkon.hrh> // TAknOrientation
       
    25 #include <akncontrol.h> // CCoeControl
       
    26 #include <coecobs.h>    // MCoeControlObserver
       
    27 #include <eikcmobs.h>   // MEikCommandObserver
       
    28 #include <aknpopupfader.h>
       
    29 #include <babitflags.h>
       
    30 
       
    31 // FORWARD DECLARATIONS
       
    32 class CAknButton;
       
    33 class CAknToolbarItem;
       
    34 class CAknToolbarExtension;
       
    35 class MAknToolbarObserver;
       
    36 class CEikButtonGroupContainer;
       
    37 class TAknWindowComponentLayout;
       
    38 class CAknsFrameBackgroundControlContext;
       
    39 class CAknsBasicBackgroundControlContext;
       
    40 
       
    41 
       
    42 // DisableToolbarL leaves with this value if toolbar is shown, since toolbar
       
    43 // should not be shown when disabling/enabling toolbar. 
       
    44 const TInt KErrToolbarShown = -101;   
       
    45 
       
    46 // CLASS DECLARATION
       
    47 
       
    48 /**
       
    49 *  The class to provide toolbar for the application
       
    50 *
       
    51 *  @lib eikcoctl.lib
       
    52 *  @since Series 60 3.1
       
    53 */
       
    54 class CAknToolbar : public CAknControl, public MCoeControlObserver, 
       
    55     public MCoeControlBackground, public MEikCommandObserver, 
       
    56     public MAknFadedComponent
       
    57     {
       
    58     public: //Enumerations: 
       
    59 
       
    60     enum TEventModifiers {
       
    61         ELongPress = 1,
       
    62         ELongPressEnded = 2,
       
    63     };
       
    64 
       
    65     public: // Constructors and destructor
       
    66 
       
    67         /**
       
    68          * Two-phased constructor.
       
    69          *
       
    70          * @param aResourceId The ID for this component's resource
       
    71          * @return Pointer to the created toolbar object
       
    72          */
       
    73         IMPORT_C static CAknToolbar* NewL( const TInt aResourceId );
       
    74 
       
    75         /**
       
    76          * Two-phased constructor.
       
    77          *
       
    78          * @param aResourceId The ID for this component's resource
       
    79          * @return Pointer to the created toolbar object
       
    80          */
       
    81         IMPORT_C static CAknToolbar* NewLC( const TInt aResourceId );
       
    82 
       
    83         /**
       
    84          * Destructor
       
    85          */
       
    86         ~CAknToolbar();
       
    87 
       
    88     public: // From base class
       
    89 
       
    90         /**
       
    91          * From CCoeControl.
       
    92          * Gets the number of controls contained in a compound control.
       
    93          *
       
    94          * @return The number of component controls contained by this control.
       
    95          */
       
    96          IMPORT_C TInt CountComponentControls() const;
       
    97 
       
    98          /**
       
    99          * From CCoeControl.
       
   100          * Gets the specified component of a compound control.
       
   101          *
       
   102          * @param aIndex The index of the control to get
       
   103          * @return The component control with an index of aIndex.
       
   104          */
       
   105         IMPORT_C CCoeControl* ComponentControl( TInt aIndex ) const ;
       
   106 
       
   107         /**
       
   108          * From CCoeControl.
       
   109          * Handles pointer events.
       
   110          *
       
   111          * @param aPointerEvent The pointer event. 
       
   112          */
       
   113         IMPORT_C void HandlePointerEventL( const TPointerEvent& aPointerEvent );
       
   114 
       
   115         /**
       
   116          * From CCoeControl.
       
   117          * Handles a change to the control's resources.
       
   118          *
       
   119          * @param aType A message UID value.
       
   120          */
       
   121         IMPORT_C void HandleResourceChange( TInt aType );
       
   122 
       
   123         /**
       
   124          * From MCoeControlObserver.
       
   125          * Handles an event from an observed toolbar item.
       
   126          *
       
   127          * @param aControl The control which sent the event
       
   128          * @param aEventType The event type
       
   129          */
       
   130         IMPORT_C void HandleControlEventL( CCoeControl* aControl, 
       
   131                                            TCoeEvent aEventType );
       
   132 
       
   133         /**
       
   134          * From CCoeControl.
       
   135          * Responds to changes in the position of a toolbar.
       
   136          */
       
   137         IMPORT_C void PositionChanged();
       
   138 
       
   139         /**
       
   140          * From MEikCommandObserver.
       
   141          * Processes user commands.
       
   142          *
       
   143          * @param TInt aCommandId  ID of the command to respond to.
       
   144          */
       
   145         IMPORT_C void ProcessCommandL( TInt aCommandId );
       
   146 
       
   147         /**
       
   148          * From CCoeControl.
       
   149          * Sets toolbar dimmed. Doesn't redraw.
       
   150          *
       
   151          * @param aDimmed is ETrue to dim the toolbar, 
       
   152          *      EFalse to set the toolbar as not dimmed
       
   153          */
       
   154         IMPORT_C void SetDimmed( TBool aDimmed );
       
   155 
       
   156         /**
       
   157          * From CCoeControl.
       
   158          * Handles key events.
       
   159          *
       
   160          * @param aKeyEvent The key event
       
   161          * @param aType The type of key event: EEventKey, EEventKeyUp
       
   162          *      or EEventKeyDown.
       
   163          * @return TKeyResponse Indicates whether or not the key event was used
       
   164          *      by this control.
       
   165          */
       
   166         IMPORT_C TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent,
       
   167                                               TEventCode aType );
       
   168 
       
   169         /**
       
   170          * From CCoeControl.
       
   171          * Gets the control's input capabilities.
       
   172          *
       
   173          * @return The control's input capabilities.
       
   174          */
       
   175         IMPORT_C TCoeInputCapabilities InputCapabilities() const;
       
   176 
       
   177         /**
       
   178          * From MCoeControlBackground.
       
   179          * Draw the background for a given control.
       
   180          * The text drawer that shall be used to draw text on the specific
       
   181          * background can be fetched through the GetTextDrawer() method.
       
   182          *
       
   183          * @param aGc Graphics context used for drawing.
       
   184          * @param aControl The control being drawn (may be a child of the drawer).
       
   185          * @param aRect The area to be redrawn.
       
   186          */
       
   187         IMPORT_C void Draw( CWindowGc& aGc,
       
   188                             const CCoeControl& aControl,
       
   189                             const TRect& aRect ) const;
       
   190 
       
   191     public: // New functions
       
   192 
       
   193         /**
       
   194          * Gets a pointer to the specified control.
       
   195          *
       
   196          * @param aControlId The ID of the control for which a pointer is
       
   197          *      required.
       
   198          * @return Pointer to the control with the specified ID.
       
   199          */
       
   200         IMPORT_C CCoeControl* ControlOrNull( const TInt aControlId ) const;
       
   201 
       
   202         /**
       
   203          * Shows or hides toolbar. Position of the top left corner should be set
       
   204          * in advance. Toolbar set visible with this method is by default focusing.
       
   205          * Does nothing if toolbar is disabled.
       
   206          * @param aVisible ETrue to show it, EFalse to hide it.
       
   207          */
       
   208         IMPORT_C void SetToolbarVisibility( const TBool aVisible );
       
   209 
       
   210         /**
       
   211         * Shows or hides toolbar. Position of the top left corner should be set
       
   212         * in advance. This overload of the method allows toolbar to be set
       
   213         * non-focusing. Does nothing if toolbar is disabled. 
       
   214         * @param aVisible ETrue to show it, EFalse to hide it.
       
   215         * @param aFocusing ETrue to set toolbar focusing, otherwise EFalse.
       
   216         */
       
   217         IMPORT_C void SetToolbarVisibility( const TBool aVisible, 
       
   218                                             const TBool aFocusing );
       
   219 
       
   220         /**
       
   221          * Dims (greys out) or undims a toolbar item.
       
   222          *
       
   223          * @param aCommandId The command (as defined in an .hrh file)
       
   224          *      associated with this toolbar item. This identifies the toolbar
       
   225          *      item, whose text is to be dimmed or un-dimmed.
       
   226          * @param aDimmed Use ETrue to dim this toolbar item or EFalse to
       
   227          *      un-dim this toolbar item.
       
   228          * @param aDrawNow Should be ETrue for the item to be redrawn.
       
   229          */
       
   230         IMPORT_C void SetItemDimmed( const TInt aCommandId,
       
   231                                      const TBool aDimmed,
       
   232                                      const TBool aDrawNow );
       
   233 
       
   234         /**
       
   235          * Hides or unhides a toolbar item.
       
   236          *
       
   237          * @param aCommandId The command (as defined in an .hrh file)
       
   238          *      associated with this toolbar item. This identifies the toolbar
       
   239          *      item, which will be set to hidden or unhidden.
       
   240          * @param aHide Use ETrue to hide this toolbar item or EFalse to
       
   241          *      unhide this toolbar item.
       
   242          * @param aDrawNow Should be ETrue for the toolbar to be redrawn.
       
   243          */
       
   244         IMPORT_C void HideItem( const TInt aCommandId,
       
   245                                 const TBool aHide,
       
   246                                 const TBool aDrawNow );
       
   247 
       
   248         /**
       
   249          * Sets the observer for the toolbar.
       
   250          *
       
   251          * @param aObserver A pointer to the observer. Ownership is not changed.
       
   252          */
       
   253         IMPORT_C void SetToolbarObserver( MAknToolbarObserver* aObserver );
       
   254 
       
   255         /**
       
   256          * Returns a pointer to the toolbar observer.
       
   257          *
       
   258          * @return Pointer to the toolbar observer.
       
   259          */
       
   260         IMPORT_C MAknToolbarObserver* ToolbarObserver();
       
   261 
       
   262         /**
       
   263          * Adds one item to the end of the toolbar. Takes ownership.
       
   264          * Leaves with value KErrNotSupported, if the control type is not
       
   265          * supported by toolbar (see CAknToolbar::IsSupportedItemType()).
       
   266          *
       
   267          * @param aItem The control.
       
   268          * @param aType The type of the new toolbar item.
       
   269          * @param aCommandId The command ID for this item.
       
   270          * @param aFlags The flags.
       
   271          */
       
   272         IMPORT_C void AddItemL( CCoeControl* aItem, 
       
   273                                 const TInt aType, 
       
   274                                 const TInt aCommandId, 
       
   275                                 const TInt aFlags );
       
   276 
       
   277         /**
       
   278          * Adds one item to the specified place. Takes ownership.
       
   279          * Leaves with value KErrNotSupported, if the control type is not
       
   280          * supported by toolbar (see CAknToolbar::IsSupportedItemType()).
       
   281          *
       
   282          * @param aItem The control.
       
   283          * @param aType The type of the new toolbar item.
       
   284          * @param aCommandId The command ID for this item.
       
   285          * @param aFlags The flags.
       
   286          * @param aIndex The index in array at which item should be added.
       
   287          */
       
   288         IMPORT_C void AddItemL( CCoeControl* aItem,
       
   289                                 const TInt aType,
       
   290                                 const TInt aCommandId,
       
   291                                 const TInt aFlags,
       
   292                                 const TInt aIndex );
       
   293 
       
   294         /**
       
   295          * Removes one item from the toolbar.
       
   296          *
       
   297          * @param aCommandId The ID of the item which should be removed.
       
   298          */
       
   299         IMPORT_C void RemoveItem( const TInt aCommandId );
       
   300 
       
   301         /**
       
   302          * Returns ETrue if the type of the item can be included in the
       
   303          * toolbar.
       
   304          *
       
   305          * @return ETrue for the supported type, otherwise EFalse.
       
   306          */
       
   307         IMPORT_C TBool IsSupportedItemType( const TInt aType ) const;
       
   308 
       
   309         /**
       
   310          * Changes the command ID for the initially focused item when toolbar is
       
   311          * shown or gain focus. Notice that, if this item is not visible, then
       
   312          * focus will be according default behaviour. Normally, focus will be on
       
   313          * the first item, if KAknToolbarMiddleItemFocused flag was not used.
       
   314          *
       
   315          * @param aCommandId The command ID for the item to get focus.
       
   316          */
       
   317         IMPORT_C void SetInitialFocusedItem( const TInt aCommandId );
       
   318 
       
   319         /**
       
   320          * Called by the framework to handle the emphasising or
       
   321          * de-emphasising of a toolbar window when it is needed. 
       
   322          * 
       
   323          * @param aEmphasis ETrue to emphasize the menu, EFalse otherwise.
       
   324          */
       
   325         IMPORT_C void SetEmphasis( const TBool aEmphasis );
       
   326 
       
   327         /**
       
   328          * Returns toolbar visibility at this moment
       
   329          *
       
   330          * @return ETrue, if toolbar is shown.
       
   331          */
       
   332         IMPORT_C TBool IsShown() const;
       
   333 
       
   334         /**
       
   335          * Specifies whether toolbar should be shown with sliding effect or not.
       
   336          * By default toolbar is shown with sliding.
       
   337          *
       
   338          * @param aSlide ETrue for sliding effect, EFalse without sliding.
       
   339          */
       
   340         IMPORT_C void SetWithSliding( const TBool aSlide );
       
   341 
       
   342         /**
       
   343          * Sets whether the toolbar should be closed or remain open after the
       
   344          * specified command is issued from the toolbar.
       
   345          *
       
   346          * @param aCommandId The command.
       
   347          * @param aClose ETrue, if toolbar should be close.
       
   348          */
       
   349         IMPORT_C void SetCloseOnCommand( const TInt aCommandId,
       
   350                                          const TBool aClose );
       
   351 
       
   352         /**
       
   353          * Sets whether the toolbar should be closed after a command is issued
       
   354          * from the toolbar. This method affects every command on the toolbar.
       
   355          *
       
   356          * @param aClose ETrue, if toolbar should be closed.
       
   357          */
       
   358         IMPORT_C void SetCloseOnAllCommands( const TBool aClose );
       
   359         
       
   360         /**
       
   361          * Sets toolbar orientation.
       
   362          * 
       
   363          * @param aOrientation Orientation that should be used for toolbar.
       
   364          * @since 3.2
       
   365          */
       
   366         IMPORT_C void SetOrientation( const TAknOrientation aOrientation );
       
   367         
       
   368         /**
       
   369          * Updates transparent toolbar's background. 
       
   370          * @since 3.2
       
   371          */
       
   372         IMPORT_C void UpdateBackground();
       
   373          
       
   374         /**
       
   375          * Shows toolbar again after it has been hidden for background changing 
       
   376          * purposes
       
   377          * 
       
   378          * @since 3.2
       
   379          */
       
   380         void ShowToolbarForBackgroundUpdate(); 
       
   381         
       
   382         /**
       
   383          * Disables/Enables toolbar so that it cannot/can be activated from e.g. 
       
   384          * touch pane. Needed especially if a dialog is on the screen and 
       
   385          * toolbar is not wished to be shown. Leaves with value KErrToolbarShown
       
   386          * if called when toolbar is shown. 
       
   387          * 
       
   388          * @param aDisable ETrue if toolbar should be disabled 
       
   389          * 
       
   390          * @since S60 3.2
       
   391          */
       
   392         IMPORT_C void DisableToolbarL( TBool aDisable ); 
       
   393 
       
   394         /**
       
   395          * Checks if toolbar is disabled. 
       
   396          * 
       
   397          * @return ETrue if toolbar is disabled, EFalse if not 
       
   398          * 
       
   399          * @since S60 3.2
       
   400          */
       
   401         IMPORT_C TBool IsToolbarDisabled() const; 
       
   402         
       
   403         /**
       
   404          * Moves highlight from one item to another. Leaves with 
       
   405          * value KErrNotFound if item not found. 
       
   406          * 
       
   407          * @param aCommandId command id of the item to be focused.           
       
   408          * 
       
   409          * @since S60 3.2
       
   410          */
       
   411         IMPORT_C void SetFocusedItemL( const TInt aCommandId ); 
       
   412 
       
   413         /**
       
   414          * Returns command id of focused item. 
       
   415          * 
       
   416          * @return command id of focused item. Returns KErrNotFound if 
       
   417          * no item is focused. 
       
   418          * 
       
   419          * @since S60 3.2
       
   420          */
       
   421         IMPORT_C TInt FocusedItem() const; 
       
   422 
       
   423         /**
       
   424          * Takes focus away from edwin or other controls if needed. Called by 
       
   425          * AknAppUi from HandleWsEventL when a pointer event is targeted to 
       
   426          * other control than toolbar. 
       
   427          * 
       
   428          * @since S60 3.2
       
   429          */
       
   430         void PrepareForFocusLossL(); 
       
   431 
       
   432         /**
       
   433          * Returns event modifiers defined in TEventModifiers in this header. 
       
   434          * This can be used by applications in OfferToolbarEventL to know if 
       
   435          * the event sent was for example a long press event. Information is
       
   436          * valid only during OfferToolbarEventL. 
       
   437          * 
       
   438          * @return event modifiers
       
   439          * @since S60 3.2
       
   440          */
       
   441         IMPORT_C TInt EventModifiers() const; 
       
   442 
       
   443         /**
       
   444          * Returns the flags of toolbar. Flags are defined in eikon.hrh.  
       
   445          * @return toolbar flags
       
   446          * @since S60 3.2
       
   447          */
       
   448         IMPORT_C TInt ToolbarFlags() const; 
       
   449 
       
   450         /*
       
   451          * Count faded components
       
   452          * @return then number of faded components
       
   453          */
       
   454         TInt CountFadedComponents(); 
       
   455 
       
   456         /*
       
   457          * Returns faded components by index
       
   458          * @return faded component
       
   459          */
       
   460         CCoeControl* FadedComponent( TInt aIndex ); 
       
   461 
       
   462         /*
       
   463          * Reduces main pane rect if it intersects with toolbar's rect
       
   464          * @param aBoundingRect the rect to reduce
       
   465          */
       
   466         void ReduceRect( TRect& aBoundingRect ) const; 
       
   467 
       
   468         /**
       
   469          * Sets the resource id for toolbar softkeys. If cba allready exists 
       
   470          * then changes the existing softkeys and redraws toolbar cba.  
       
   471          * @param aSoftkeyResourceId ID of the resource structure specifying 
       
   472          * the command buttons.
       
   473          * @since S60 3.2
       
   474          */
       
   475         IMPORT_C void SetSoftkeyResourceIdL( TInt aSoftkeyResourceId ); 
       
   476 
       
   477         /**
       
   478          * Extension notifies of its events using this method
       
   479          * aCommandId command id of the button
       
   480          */
       
   481         void ExtensionEventL( TInt aCommandId ); 
       
   482 
       
   483         /**
       
   484          * Returns the index of the toolbar item inside of the iVisibleItems
       
   485          * array.
       
   486          *
       
   487          * @param aControl The control which index is needed.
       
   488          * @return Index of the toolbar item.
       
   489          */
       
   490         TInt ToolbarVisibleIndexByControl( const CCoeControl* aControl ) const;
       
   491 
       
   492         /**
       
   493          * Returns pointer to toolbar extension if available
       
   494          * @return toolbar extension or NULL
       
   495          */
       
   496         IMPORT_C CAknToolbarExtension* ToolbarExtension() const;  		
       
   497 
       
   498         /**
       
   499          * Calls DynInitToolbar with extensions commmand id
       
   500          * 
       
   501          */
       
   502         void DynInitExtensionL( CCoeControl* aControl ); 
       
   503 
       
   504         /**
       
   505          * Callback for sliding toolbar.
       
   506          */
       
   507         static TInt ReadyToSlide( TAny* aThis ); 
       
   508 
       
   509         /**
       
   510          * Slide toolbar
       
   511          */
       
   512         void SlideWithIdle(); 
       
   513 
       
   514         /**
       
   515          * Hides/Unhides toolbar items temporarily. When called with ETrue 
       
   516          * toolbar draws just background in landscape and is hidden in portrait. 
       
   517          * Calling with EFalse returns the situation to normal, so drawing the 
       
   518          * items normally in portrait and landscape. Use this method only with
       
   519          * fixed toolbar! 
       
   520          *  
       
   521          * @param aHide ETrue if hiding items, EFalse if unhiding.  
       
   522          */
       
   523         IMPORT_C void HideItemsAndDrawOnlyBackground( TBool aHide ); 
       
   524 
       
   525         /**
       
   526          * Hides/Unhides toolbar items temporarily. When called with ETrue
       
   527          * toolbar draws just background in landscape and is hidden in portrait. 
       
   528          * Toolbar window priority is changed to priority passed in parameter.
       
   529          * Priority should be one of the window priority values defined in 
       
   530          * TCoeWinPriority. Default priority is ECoeWinPriorityLow.
       
   531          * Note that if toolbar is already hidden, the toolbar window priority
       
   532          * is still changed to priority passed in parameter.
       
   533          * Calling the function HideItemsAndDrawOnlyBackground with EFalse returns
       
   534          * the situation to normal, so drawing the items normally in portrait 
       
   535          * and landscape. Use this method only with fixed toolbar! 
       
   536          *  
       
   537          * @param aHide ETrue if hiding items, EFalse if unhiding.
       
   538          * @param aPriority Ordinal priority of toolbar window.  
       
   539          */
       
   540         IMPORT_C void HideItemsAndDrawOnlyBackground( TBool aHide, TInt aPriority ); 
       
   541 
       
   542 
       
   543     protected: // From base class
       
   544 
       
   545         /**
       
   546          * From CCoeControl.
       
   547          * Responds to size changes to sets the size and position of 
       
   548          * the contents of this control.
       
   549          */
       
   550         IMPORT_C void SizeChanged();
       
   551 
       
   552         /**
       
   553          * From CCoeControl.
       
   554          * This function is called whenever a control gains or loses focus.
       
   555          *
       
   556          * @param aDrawNow Contains the value that was passed to it by SetFocus().
       
   557          */
       
   558         IMPORT_C void FocusChanged( TDrawNow aDrawNow );
       
   559 
       
   560         /**
       
   561          * From CAknControl.
       
   562          * For future extensions.
       
   563          *
       
   564          * @param aInterface The ID for the extension interface.
       
   565          */
       
   566         IMPORT_C void* ExtensionInterface( TUid aInterface );
       
   567 
       
   568         /**
       
   569          * From CCoeControl.
       
   570          * Retrieves an object of the same type as that encapsulated in aId.
       
   571          *
       
   572          * @param aId An encapsulated object type ID.
       
   573          * @return Encapsulated pointer to the object provided. 
       
   574          *      Note that the encapsulated pointer may be NULL.
       
   575          */
       
   576         IMPORT_C TTypeUid::Ptr MopSupplyObject( TTypeUid aId );
       
   577 
       
   578     private: // Constructors
       
   579 
       
   580         /**
       
   581          * C++ default constructor.
       
   582          */
       
   583         CAknToolbar();
       
   584 
       
   585         /**
       
   586          * Symbian 2nd phase constructor.
       
   587          */
       
   588         void ConstructL();
       
   589 
       
   590     private: // From base class
       
   591 
       
   592         /**
       
   593          * From CCoeControl.
       
   594          * Constructs controls from a resource file.
       
   595          * Hides the one defined in base class.
       
   596          *
       
   597          * @param aReader The resource reader with which to access
       
   598          *      the control's resource values.
       
   599          */
       
   600         IMPORT_C void ConstructFromResourceL( TResourceReader& aReader );
       
   601 
       
   602         /**
       
   603          * From CCoeControl.
       
   604          * Draw a control called by window server.
       
   605          *
       
   606          * @param aRect The region of the control to be redrawn. 
       
   607          *      Co-ordinates are relative to the control's origin (top left corner).
       
   608          */
       
   609         IMPORT_C void Draw( const TRect& aRect ) const;
       
   610 
       
   611     private: // New functions
       
   612 
       
   613         /**
       
   614          * Constructs controls from a resource file.
       
   615          *
       
   616          * @param aResourceId The ID for this component's resource.
       
   617          */
       
   618         void ConstructFromResourceL( const TInt aResourceId );
       
   619 
       
   620         /**
       
   621          * Constructs one of the toolbar items.
       
   622          *
       
   623          * @param aReader The resource reader with which to access the control's
       
   624          *      resource values.
       
   625          * @return Constructed toolbar item.
       
   626          */
       
   627         CAknToolbarItem* ConstructControlLC( TResourceReader& aReader );
       
   628 
       
   629         /**
       
   630          * Calculates size and position of the toolbar depending on the
       
   631          * number and size of the toolbar items.
       
   632          *
       
   633          * @return Toolbar rectangular.
       
   634          */
       
   635         TRect CalculateSizeAndPosition();
       
   636 
       
   637         /**
       
   638          * Calculates rects that are used in calculating the size
       
   639          * and position of the toolbar items
       
   640          *
       
   641          * @param aMainPaneRect main pane rect
       
   642          * @param aToolbarRect rect for toolbar
       
   643          * @param aGridPaneRect rect for grid pane
       
   644          * @param aCellPaneRect rect for cell pane
       
   645          */
       
   646         void CalculateRects( TRect& aMainPaneRect, TRect& aToolbarRect,
       
   647             TRect& aGridPaneRect, TRect& aCellPaneRect );
       
   648 
       
   649         /**
       
   650          * Calculates the position and size of the control rect
       
   651          * 
       
   652          * @param aCurrentCellPaneRect current cell pane rect is needed to 
       
   653          * get correct control rect from layout data. 
       
   654          * @return control rect for the toolbar item
       
   655          */
       
   656         TRect CalculateControlRect( TRect& aCurrentCellPaneRect ); 
       
   657 
       
   658         /**
       
   659          * Checks the number of visible items, and if too few the toolbar CBA is
       
   660          * deleted. If last time there were too few items then toolbar CBA is 
       
   661          * created again. Also the ordinal position of the toolbar is set if 
       
   662          * there are changes to previous situation. 
       
   663          * 
       
   664          * @return ETrue if too few items are visible, EFalse if not 
       
   665          */
       
   666         TBool TooFewItemsVisible(); 
       
   667 
       
   668         /**
       
   669          * Returns toolbar item object for the specified control.
       
   670          *
       
   671          * @param aControl Pointer to the control.
       
   672          * @return Pointer to the toolbar item.
       
   673          */
       
   674         CAknToolbarItem* ToolbarItemByControl( const CCoeControl* aControl ) const;
       
   675 
       
   676         /**
       
   677          * Returns toolbar item object for the specified command ID.
       
   678          *
       
   679          * @param aId The command ID of the item.
       
   680          * @return Pointer to the toolbar item.
       
   681          */
       
   682         CAknToolbarItem* ToolbarItemById( const TInt aId ) const;
       
   683 
       
   684         /**
       
   685          * Returns the index of the toolbar item inside of the iItems array.
       
   686          *
       
   687          * @param aId The command ID of the item
       
   688          * @return Index of the toolbar item.
       
   689          */
       
   690         TInt ToolbarItemIndexById( const TInt aId ) const;
       
   691 
       
   692         /**
       
   693          * Returns the index of the toolbar item inside of the iItems array.
       
   694          *
       
   695          * @param aControl The control which index is needed.
       
   696          * @return Index of the toolbar item.
       
   697          */
       
   698         TInt ToolbarItemIndexByControl( const CCoeControl* aControl ) const;
       
   699 
       
   700         /**
       
   701          * Returns the index of the toolbar item inside of the iVisibleItems
       
   702          * array.
       
   703          *
       
   704          * @param aId The command ID of the item.
       
   705          * @return Index of the toolbar item.
       
   706          */
       
   707         TInt ToolbarVisibleIndexById( const TInt aId ) const;  
       
   708 
       
   709         /**
       
   710          * Draws toolbar with sliding effect.
       
   711          *
       
   712          * @param aEndPos The position of the top left corner of toolbar at 
       
   713          * the end of animation.
       
   714          */
       
   715         void SlideToolbar( const TPoint& aEndPos );
       
   716 
       
   717         /**
       
   718          * Changes CBA text if all items are dimmed.
       
   719          */
       
   720         void SetRightCbaTextL();
       
   721 
       
   722         /**
       
   723          * Returns next non-dimmed and non-hidden control index.
       
   724          *
       
   725          * @param aStartIndex The index of the item from which the search
       
   726          *      should be started.
       
   727          * @param aMoveForward ETrue if search is done from lower index to
       
   728          *      the higher one.
       
   729          * @return The index of next non-dimmed and non-hidden item.
       
   730          */
       
   731         TInt GetNextSelectableItemIndex( TInt aStartIndex,
       
   732                                         TBool aMoveForward );
       
   733 
       
   734         /**
       
   735          * Moves highlight from one item to another. It also will change 
       
   736          * softkey text for the focused toolbar.
       
   737          *
       
   738          * @param aItemIndex The index for the newly focused item.
       
   739          * @param aDrawNow Specifies whether the item should be redrawn.
       
   740          * @param aMoveForward Specifies whether the next item in the array
       
   741          *      should be selected when the item with aItemIndex is dimmed.
       
   742          * @param aPrepareControl Specifies whether PrepareForFocusLossL() or
       
   743          *      PrepareForFocusGainL() functions should be called.
       
   744          */
       
   745         void MoveHighlightL( TInt aItemIndex,
       
   746                               const TBool aDrawNow,
       
   747                               const TBool aMoveForward = ETrue,
       
   748                               const TBool aPrepareControl = ETrue );
       
   749 
       
   750         /**
       
   751          * Makes toolbar visible and activates it. Position of the top left 
       
   752          * corner should be set in advance. Also use SetFocus() to specify
       
   753          * whether toolbar gets key events or not.
       
   754          */
       
   755         void ShowToolbarL();
       
   756 
       
   757         /**
       
   758          * Hides toolbar.
       
   759          */
       
   760         void HideToolbarL();
       
   761 
       
   762         /**
       
   763          * Sets the focus to the middle or the first item, depending on the
       
   764          * toolbar flags.
       
   765          *
       
   766          * @param aDrawNow if the newly focused item should be redrawn.
       
   767          */
       
   768         void InitFocusedItemL( const TBool aDrawNow );
       
   769 
       
   770         /**
       
   771          * Sets the flag to be on or off and also calls
       
   772          * CCoeControl::MakeVisible().
       
   773          */
       
   774         void SetShown( const TBool aShown );
       
   775 
       
   776         /**
       
   777          * Selects/deselects the toolbar item at given index.
       
   778          */
       
   779         void SelectItemL( const TInt aIndex, const TBool aSelect );
       
   780 
       
   781         /**
       
   782          * Gets rect from layout data.
       
   783          */
       
   784         TRect RectFromLayout( const TRect& aParent,
       
   785             const TAknWindowComponentLayout& aComponentLayout ) const;
       
   786         
       
   787         /**
       
   788          * Callback to get notified when ready to show toolbar again
       
   789          */
       
   790         static TInt WaitForScreenSwitch(TAny* aThis); 
       
   791 
       
   792         /**
       
   793          * Hides toolbar so that screen capture can be taken from the 
       
   794          * background in order to update it. 
       
   795          */
       
   796         void HideToolbarForBackgroundUpdate(); 
       
   797         
       
   798         /**
       
   799          * Updates control positions so that tooltips are positioned correctly
       
   800          */
       
   801         void UpdateControlPositions();
       
   802 
       
   803         /**
       
   804         * Shows toolbar via CIdle. As a result, toolbar's window priority is 
       
   805         * setted after the application's container window. This places toolbar
       
   806         * to the right place in the window tree.
       
   807         */
       
   808         void ShowViaIdle();
       
   809         
       
   810         /**
       
   811         * Callback for delayed toolbar showing.
       
   812         */
       
   813         static TInt ShowDelayedToolbar( TAny* aThis );
       
   814 
       
   815         /**
       
   816          * Modifies highlight bitmap that is 50% transparent to use when drawing 
       
   817          * highlight for small transparent toolbar. 
       
   818          */
       
   819         void ModifyHighlightMaskL( TBool aCreateBitmaps );
       
   820 
       
   821         /**
       
   822          * Fades behind toolbar
       
   823          * @param aFade if ETrue then fade
       
   824          */
       
   825         void FadeBehindPopup( TBool aFade ); 
       
   826 
       
   827         /**
       
   828          * Sets buttons to check their touchable areas when tapped 
       
   829          */
       
   830         void CheckHitAreas( ); 
       
   831 
       
   832         /**
       
   833          * Counts buttons of fixed tool bar and adds button(s) if needed
       
   834          * There has to bee at leas three buttons in fixed toolbar.
       
   835          */
       
   836         void CheckFixedToolbarButtonsL();
       
   837 
       
   838         /**
       
   839          * Draws backgrounds of fixed toolbar
       
   840          * @param aGc Graphics context used for drawing.
       
   841          * @param aControl The control being drawn (may be a child of the drawer).
       
   842          * @param aRect The area to be drawn.
       
   843          */
       
   844         void DrawFixedBackgroundL( CWindowGc& aGc, 
       
   845                                    const CCoeControl& aControl, 
       
   846                                    const TRect& aRect ) const;
       
   847                                    
       
   848         /**
       
   849         * Adjusts button's properties depending on the toolbar's features.
       
   850         */                                   
       
   851         void AdjustButton( CAknButton& aButton );
       
   852         
       
   853         /**
       
   854         * Adjusts all buttons' properties depending on the toolbar's features.
       
   855         */
       
   856         void AdjustAllButtons();
       
   857         
       
   858         /**
       
   859         * Adjusts toolbar's and overlying dialog's window positions so that
       
   860         * dialog is displayed on top of the toolbar.
       
   861         */
       
   862         void SetOrdinalPositions() const;
       
   863 
       
   864         /**
       
   865         * Updates control visibility based on toolbar visibility and 
       
   866         * buttons visibility inside toolbar.
       
   867         */
       
   868         void UpdateControlVisibility();
       
   869 	
       
   870     private: // Member variables
       
   871 
       
   872         // Array for toolbar items
       
   873         RPointerArray<CAknToolbarItem> iItems;
       
   874 
       
   875         // Array for visible toolbar items
       
   876         RPointerArray<CAknToolbarItem> iVisibleItems;
       
   877 
       
   878         // Toolbar flags
       
   879         TInt iFlags;
       
   880 
       
   881         // Observer to report toolbar item events, not owned
       
   882         MAknToolbarObserver* iToolbarObserver;
       
   883 
       
   884         // Index of focused item, used with focusable toolbar
       
   885         TInt iFocusedItem;
       
   886 
       
   887         // Index of selected item, used with focusable and non-focusable toolbar
       
   888         TInt iSelectedItem;
       
   889 
       
   890         // Toolbar cba, used with focusable toolbar
       
   891         // own
       
   892         CEikButtonGroupContainer* iToolbarCba;
       
   893 
       
   894         // Resource id for toolbar
       
   895         TInt iToolbarResourceId;
       
   896 
       
   897         // The default focused item
       
   898         TInt iInitialFocusedItem;
       
   899 
       
   900         // Last focused item before focus was lost
       
   901         TInt iLastFocusedItem;
       
   902 
       
   903         // Toolbar frame context
       
   904         // own
       
   905         CAknsFrameBackgroundControlContext* iFrameContext;
       
   906 
       
   907         // Toolbar background context
       
   908         // own
       
   909         CAknsBasicBackgroundControlContext* iBgContext;
       
   910         
       
   911         // Toolbar orientation
       
   912         TAknOrientation iOrientation;
       
   913         
       
   914         // Transparency bitmap
       
   915         // own
       
   916         CFbsBitmap* iBgBitmap;
       
   917 
       
   918         // This is used to call ShowToolbarForBackgroundChange after toolbar has
       
   919         // been hidden 
       
   920         // own
       
   921         CIdle* iIdle;
       
   922         
       
   923         // Highlight bitmap
       
   924         CFbsBitmap* iHighlightBitmap; 
       
   925 
       
   926         // Highlight mask 
       
   927         CFbsBitmap* iHighlightMask; 
       
   928         
       
   929         // event modifiers
       
   930         TInt iEventModifiers; 
       
   931 	
       
   932 	    // Background fader
       
   933         TAknPopupFader iFader;
       
   934 	    
       
   935 	    // Softkey resource
       
   936         TInt iSoftkeyResource; 
       
   937 	    
       
   938         // Used to store previous item that had pointerevents
       
   939         TInt iPreviousItem;
       
   940 
       
   941 	    // Step for toolbar sliding
       
   942 	    TInt iStep; 
       
   943 
       
   944 	    // End position for toolbar sliding 
       
   945 	    TInt iEndPos;
       
   946 	    
       
   947 	    // Internal flags used to store toolbar's properties
       
   948 	    TBitFlags iInternalFlags;
       
   949 	    
       
   950 	    // Background area to be drawn when not enough visible items
       
   951 	    // to cover the toolbar area
       
   952 	    TRect iBgRect;
       
   953 
       
   954         // Toolbar window priority if set in HideItemsAndDrawOnlyBackground
       
   955 	    TInt iDrawingPriority;
       
   956 
       
   957     };
       
   958 
       
   959 #endif // __AKNTOOLBAR_H__
       
   960 
       
   961 // End of File