1 /*

     2 * Copyright (c) 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 "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Zoom popup definition

    15 *

    16 */

    17 

    18 

    19 #ifndef C_VTUIZOOMPOPUP_H

    20 #define C_VTUIZOOMPOPUP_H

    21 

    22 #include "tvtuicomponentstate.h"

    23 #include "cvtuipopupbase.h"

    24 

    25 class CVtUiFeatureManager;

    26 class MVtEngMedia;

    27 

    28 /**

    29 *  CVtUiZoomPopup

    30 *

    31 *  Zoom popup definition.

    32 *

    33 *  @since S60 v3.2

    34 */

    35 class CVtUiZoomPopup : public CVtUiPopupBase

    36     {

    37 

    38 public:

    39 

    40     /**

    41     * Static constructor

    42     * @param aFeatureManager Reference to feature manager.

    43     */

    44     static CVtUiZoomPopup* NewL( CVtUiFeatureManager& aFeatureManager );

    45 

    46     /**

    47     * Destructor

    48     */

    49     ~CVtUiZoomPopup();

    50 

    51     /**

    52     * Refresh zoom popup status.

    53     */

    54     void RefreshL();

    55 

    56 private: // from CVtUiPopupBase

    57 

    58     /**

    59     * @see CVtUiPopupBase::DoActivateL

    60     */

    61     void DoActivateL();

    62 

    63 private: // from base class

    64 

    65     /**

    66     * @see CVtUiPopupBase::OfferKeyEventL

    67     */

    68     TKeyResponse OfferKeyEventL( const TKeyEvent& aEvent,

    69         TEventCode aCode );

    70 

    71     /**

    72     * @see CVtUiPopupBase::HandleControlEventL

    73     */

    74     void HandleControlEventL( CCoeControl* aControl, TCoeEvent aEventType );

    75 

    76 private:

    77 

    78     /**

    79      * Constructor

    80      */

    81     CVtUiZoomPopup( CVtUiFeatureManager& aFeatureManager );

    82 

    83     /*

    84     * 2nd constructor

    85     */

    86     void ConstructL();

    87 

    88     /*

    89     * Updates zoom adjust range according to current active provider.

    90     */

    91     void UpdateAdjustRangeL();

    92 

    93     /**

    94     * Returns current zoom step or KErrNotFound if an error happens.

    95     */

    96     TInt CurrentZoomStep() const;

    97 

    98     /**

    99     * Returns maximum zoom step or KErrNotFound if an error happens.

   100     */

   101     TInt MaxZoomStep() const;

   102     

   103     void ScaleAndSetZoomFactorL( TInt aValue );

   104 

   105 private:

   106 

   107     // Reference to feature manager

   108     CVtUiFeatureManager& iFeatureManager;

   109 

   110     // Engine media

   111     MVtEngMedia& iMedia;

   112 

   113     // Current zoom

   114     TInt iCurrent;

   115 

   116     // Maximum zoom value

   117     TInt iMax;

   118 

   119     };

   120 

   121 #endif // C_VTUIZOOMPOPUP_H