idlehomescreen/nativeuicontroller/src/aistyluspopupmenucontent.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:40:49 +0200
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/*
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* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Content that is shown inside a stylus popup menu.
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*
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*/
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#include <aknbutton.h>
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#include <eikon.hrh>
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#include <aknlayoutscalable_avkon.cdl.h>
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#include "aistyluspopupmenucontent.h"
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const TInt KItemArrayGranularity = 10;
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// Item shown or dimmed
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const TInt KShown = 0;
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const TInt KHidden = 0x02;
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// Constructor
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// ---------------------------------------------------------------------------
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//
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CAiStylusPopUpMenuContent::CAiStylusPopUpMenuContent() :
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    iItems( KItemArrayGranularity ),
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    iCommands( KItemArrayGranularity )
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    {
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    }
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// ---------------------------------------------------------------------------
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// CAiStylusPopUpMenuContent::ConstructL
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// ---------------------------------------------------------------------------
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//
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void CAiStylusPopUpMenuContent::ConstructL()
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    {
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    for ( TInt i=0; i<KAiStylusMenuMaxItems; i++ )
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        {
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        iVisibility[i] = KShown;
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        }
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    }
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// ---------------------------------------------------------------------------
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// CAiStylusPopUpMenuContent::NewL
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// ---------------------------------------------------------------------------
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//
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CAiStylusPopUpMenuContent* CAiStylusPopUpMenuContent::NewL()
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    {
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    CAiStylusPopUpMenuContent* self = CAiStylusPopUpMenuContent::NewLC();
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    CleanupStack::Pop( self );
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// CAiStylusPopUpMenuContent::NewLC
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// ---------------------------------------------------------------------------
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//
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CAiStylusPopUpMenuContent* CAiStylusPopUpMenuContent::NewLC()
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    {
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    CAiStylusPopUpMenuContent* self =
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                                    new ( ELeave ) CAiStylusPopUpMenuContent;
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// Destructor
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// ---------------------------------------------------------------------------
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//
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CAiStylusPopUpMenuContent::~CAiStylusPopUpMenuContent()
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    {
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    iItems.ResetAndDestroy();
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    iCommands.Reset();
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    }
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// ---------------------------------------------------------------------------
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// Adds a new menu item to the array of items.
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// ---------------------------------------------------------------------------
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//
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void CAiStylusPopUpMenuContent::AddMenuItemL( const TDesC& aItem,
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    const TInt aCommandId, MCoeControlObserver& aObserver )
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    {
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    if ( iItems.Count() >= KAiStylusMenuMaxItems )
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        {
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        return;
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        }
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    TInt flags = 0;
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    flags = KAknButtonTextLeft | KAknButtonSizeFitText | KAknButtonNoFrame;
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    CAknButton* item = CAknButton::NewL( NULL, NULL, NULL, NULL, aItem,
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        KNullDesC, flags, 0 );
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    item->SetTextFont( AknLayoutUtils::FontFromId(
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        AknLayoutScalable_Avkon::
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            list_single_popup_submenu_pane_t1( 0 ).LayoutLine().FontId() ) );
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    item->SetBackground( Background() );
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diff changeset
   116
    item->SetObserver( &aObserver );
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   117
    iItems.Append( item );
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parents:
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   118
    iCommands.Append( aCommandId );
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   119
    SizeChanged();
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   120
    }
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parents:
diff changeset
   121
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parents:
diff changeset
   122
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parents:
diff changeset
   123
// ---------------------------------------------------------------------------
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   124
// Removes the menu item based on the given command id and frees the
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   125
// memory occupied by it.
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   126
// ---------------------------------------------------------------------------
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   127
//
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parents:
diff changeset
   128
void CAiStylusPopUpMenuContent::RemoveMenuItem( const TInt aCommandId )
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   129
    {
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   130
    TInt itemIndex;
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   131
    for ( itemIndex = 0; itemIndex < iItems.Count(); itemIndex++ )
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   132
        {
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   133
        if ( iCommands[itemIndex] == aCommandId )
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   134
            {
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   135
            delete iItems[itemIndex];
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parents:
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   136
            iItems.Remove( itemIndex );
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parents:
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   137
            iCommands.Remove( itemIndex );
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parents:
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   138
            iVisibility[itemIndex] = KShown;
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parents:
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   139
            break;
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   140
            }
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   141
        }
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parents:
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   142
    }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   143
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   144
// ---------------------------------------------------------------------------
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   145
// Hides / unhides the menu item based on the given command id
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   146
// ---------------------------------------------------------------------------
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   147
//
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   148
void CAiStylusPopUpMenuContent::SetItemDimmed( const TInt aCommandId, const TBool aDimmed )
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parents:
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   149
    {
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   150
    TInt itemIndex;
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parents:
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   151
    for ( itemIndex = 0; itemIndex < iItems.Count(); itemIndex++ )
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parents:
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   152
        {
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parents:
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   153
        if ( iCommands[itemIndex] == aCommandId )
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parents:
diff changeset
   154
            {
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parents:
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   155
            if ( aDimmed )
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parents:
diff changeset
   156
                {
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parents:
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   157
                iVisibility[itemIndex] = KHidden;
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parents:
diff changeset
   158
                }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   159
            else
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   160
                {
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parents:
diff changeset
   161
                iVisibility[itemIndex] = KShown;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   162
                }
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parents:
diff changeset
   163
            SizeChanged();
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parents:
diff changeset
   164
            }
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parents:
diff changeset
   165
        }
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parents:
diff changeset
   166
    }
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   167
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parents:
diff changeset
   168
// ---------------------------------------------------------------------------
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   169
// Returns the command id of the specified menu item.
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   170
// ---------------------------------------------------------------------------
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   171
//
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parents:
diff changeset
   172
TInt CAiStylusPopUpMenuContent::CommandId( CCoeControl* aControl ) const
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   173
    {
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parents:
diff changeset
   174
    TInt retVal = 0;
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   175
    for ( TInt i = 0; i < iItems.Count(); i++ )
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   176
        {
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parents:
diff changeset
   177
        if ( iItems[i] == aControl )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   178
            {
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parents:
diff changeset
   179
            retVal = iCommands[i];
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   180
            }
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   181
        }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   182
    return retVal;
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parents:
diff changeset
   183
    }
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   184
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   185
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parents:
diff changeset
   186
// ---------------------------------------------------------------------------
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   187
// From class CCoeControl
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   188
// Calculates the total size needed to display the items.
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parents:
diff changeset
   189
// ---------------------------------------------------------------------------
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   190
//
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   191
TSize CAiStylusPopUpMenuContent::MinimumSize()
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   192
    {
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parents:
diff changeset
   193
    TInt totalHeight = 0; // height of all menu items combined.
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   194
    TInt width = 0; // Width of the widest menu item.
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   195
    TSize itemSize;
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   196
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   197
    for ( TInt i = 0; i < iItems.Count(); i++ )
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   198
        {
f72a12da539e Revision: 200949
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parents:
diff changeset
   199
        if ( iVisibility[i] == KShown )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   200
            {
f72a12da539e Revision: 200949
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parents:
diff changeset
   201
            itemSize = iItems[i]->MinimumSize();
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   202
            if ( itemSize.iWidth > width )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   203
                {
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parents:
diff changeset
   204
                width = itemSize.iWidth;
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parents:
diff changeset
   205
                }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   206
            totalHeight += itemSize.iHeight;
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parents:
diff changeset
   207
            }
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   208
        }
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   209
    return TSize( width, totalHeight );
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parents:
diff changeset
   210
    }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   211
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   212
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parents:
diff changeset
   213
// ---------------------------------------------------------------------------
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parents:
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   214
// From class CCoeControl
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   215
// CAiStylusPopUpMenuContent::CountComponentControls
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parents:
diff changeset
   216
// ---------------------------------------------------------------------------
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   217
//
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   218
TInt CAiStylusPopUpMenuContent::CountComponentControls()  const
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   219
    {
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parents:
diff changeset
   220
    TInt count ( 0 );
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   221
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   222
    for ( TInt i = 0; i < iItems.Count(); i++ )
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   223
        {
f72a12da539e Revision: 200949
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parents:
diff changeset
   224
        if ( iVisibility[i] == KShown )
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   225
            {
f72a12da539e Revision: 200949
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parents:
diff changeset
   226
            count++;
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parents:
diff changeset
   227
            }
f72a12da539e Revision: 200949
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parents:
diff changeset
   228
        }
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   229
    return count;
f72a12da539e Revision: 200949
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parents:
diff changeset
   230
    }
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   231
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   232
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parents:
diff changeset
   233
// ---------------------------------------------------------------------------
f72a12da539e Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
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// From class CCoeControl
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// CAiStylusPopUpMenuContent::ComponentControl
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// ---------------------------------------------------------------------------
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//
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CCoeControl* CAiStylusPopUpMenuContent::ComponentControl(
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                                                        TInt aIndex ) const
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    {
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    TInt count ( 0 );
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    for ( TInt i = 0; i< iItems.Count(); i++ )
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        {
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        // Skip dimmed item(s)
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        if ( iVisibility[i] == KShown )
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            {
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            if ( count == aIndex )
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                {
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                return iItems[i];
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                }
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            count++;
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            }
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        }
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    // Should never come here
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    return NULL;
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    }
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// ---------------------------------------------------------------------------
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// From class CCoeControl
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// CAiStylusPopUpMenuContent::HandleResourceChange
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// ---------------------------------------------------------------------------
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//
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void CAiStylusPopUpMenuContent::HandleResourceChange( TInt aType )
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    {
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    CCoeControl::HandleResourceChange( aType );
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    if ( aType == KAknsMessageSkinChange )
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        {
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        // Implementation when graphics are ready.
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        }
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    else if ( aType == KEikDynamicLayoutVariantSwitch )
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        {
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        SizeChanged();
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        }
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    }
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// ---------------------------------------------------------------------------
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// From class CCoeControl
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// CAiStylusPopUpMenuContent::SizeChanged
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// ---------------------------------------------------------------------------
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//
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void CAiStylusPopUpMenuContent::SizeChanged()
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    {
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    if ( iItems.Count() == 0 )
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        {
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        return;
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        }
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    // Note:  LAF data missing at the moment
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    TRect rect = Rect();
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    TInt itemHeight = iItems[0]->Size().iHeight;
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    TPoint topLeft = rect.iTl;
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    TSize itemSize( 0, 0 );
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    // Position items starting from the topmost item
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    for ( TInt i = 0; i < iItems.Count(); i++ )
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        {
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        // Skip hidden item(s)
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        if ( iVisibility[i] == KShown )
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            {
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            // CAknButton::MinimumSize returns the size needed by the item text.
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            itemSize = iItems[i]->MinimumSize();
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            iItems[i]->SetRect( TRect( topLeft, itemSize ) );
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            topLeft.iY += itemHeight; // Move next item down.
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            }
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        }
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    }