Categories: Symbian C++ | How To | Code Examples | UI

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In the MMP file

// Put what ever is necessary for an applicaion.
// ..
LIBRARY           aknicon.lib // AknIconUtils 
// ..

In the header file of the view (container)

#ifndef __MYAPPVIEW_H__
#define __MYAPPVIEW_H__
 
// INCLUDES
#include <coecntrl.h>
 
// FORWARD DECLARATION
class CFbsBitmap;
 
// CLASS DECLARATION
class CMyAppView : public CCoeControl
    {
    public: // New methods
 
        /**
         * NewL.
         * Two-phased constructor.
         * Create a CMyAppView object, which will draw itself to aRect.
         * @param aRect The rectangle this view will be drawn to.
         * @return a pointer to the created instance of CMyAppView.
         */
        static CMyAppView* NewL( const TRect& aRect );
 
        /**
         * NewLC.
         * Two-phased constructor.
         * Create a CMyAppView object, which will draw itself
         * to aRect.
         * @param aRect Rectangle this view will be drawn to.
         * @return A pointer to the created instance of CMyAppView.
         */
        static CMyAppView* NewLC( const TRect& aRect );
 
        /**
         * ~CMyAppView
         * Virtual Destructor.
         */
        virtual ~CMyAppView();
 
    private: // Constructors
 
        /**
         * ConstructL
         * 2nd phase constructor.
         * Perform the second phase construction of a
         * CMyAppView object.
         * @param aRect The rectangle this view will be drawn to.
         */
        void ConstructL(const TRect& aRect);
 
        /**
         * CMyAppView.
         * C++ default constructor.
         */
        CMyAppView();
 
    public:  // Functions from base classes
 
        /**
         * From CCoeControl, Draw
         * Draw this CMyAppView to the screen.
         * @param aRect the rectangle of this view that needs updating
         */
        void Draw( const TRect& aRect ) const;
 
        /**
         * From CoeControl, SizeChanged.
         * Called by framework when the view size is changed.
         */
        void SizeChanged();
 
    private: // Member data
 
        /**
         * The bitmap object.
         * Owned by CMyAppView
         */
        CFbsBitmap* iMyIcon;
 
        /**
         * The bitmap mask object.
         * Owned by CMyAppView
         */
        CFbsBitmap* iMyIconMask;
    }
 
#endif // __MYAPPVIEW_H__
 
// End of File

In the cpp file of the view (container)

// INCLUDES
#include <coemain.h>
#include <eikenv.h>
#include <akniconutils.h> // for AknIconUtils 
#include <My_Icon.mbg>
#include "MyAppView.h"
 
// IMPLEMENTATION SPECIFIC CONSTANTS
// The mif file from where you would like to show the 
// icon on the screen.
_LIT(KMyIconMif, "c:\\resource\\apps\\My_Icon.mif");
 
// If your image is created from an SVG then image would be
// of a scalable one. In that case even if you change the 
// width and height the look of the image would be smooth.
const TInt KMyIconMaxWidth(100);
const TInt KMyIconMaxHeight(100);
 
// ============================ MEMBER FUNCTIONS ===============================
 
// -----------------------------------------------------------------------------
// CMyAppView::NewL()
// Two-phased constructor.
// -----------------------------------------------------------------------------
//
CMyAppView* CMyAppView::NewL( const TRect& aRect )
    {
    CMyAppView* self = CMyAppView::NewLC( aRect );
    CleanupStack::Pop( self );
    return self;
    }
 
// -----------------------------------------------------------------------------
// CMyAppView::NewLC()
// Two-phased constructor.
// -----------------------------------------------------------------------------
//
CMyAppView* CMyAppView::NewLC( const TRect& aRect )
    {
    CMyAppView* self = new ( ELeave ) CMyAppView;
    CleanupStack::PushL( self );
    self->ConstructL( aRect );
    return self;
    }
 
// -----------------------------------------------------------------------------
// CMyAppView::~CMyAppView()
// Destructor.
// -----------------------------------------------------------------------------
//
CMyAppView::~CMyAppView()
    {
    if(iMyIconMask)
        {
        delete iMyIconMask;
        iMyIconMask = NULL;
        }
 
    if(iMyIcon)
        {
        delete iMyIcon;
        iMyIcon = NULL;
        }
    }
 
// -----------------------------------------------------------------------------
// CMyAppView::ConstructL()
// Symbian 2nd phase constructor can leave.
// -----------------------------------------------------------------------------
//
void CMyAppView::ConstructL( const TRect& aRect )
    {
    // Create a window for this application view
    CreateWindowL();
 
    // Set the windows size
    SetRect( aRect );
 
    // This view is a full-screen view.
    SetExtentToWholeScreen();
 
    // Create the bitmap and mask to draw.
    AknIconUtils::CreateIconL(iMyIcon, iMyIconMask, KMyIconMif, 
        EMbmMy_iconMy_icon, EMbmMy_iconMy_icon_mask);
 
    // Set size for the bitmap and mask
    AknIconUtils::SetSize(iMyIcon, TSize(KMyIconMaxWidth, KMyIconMaxHeight));
    AknIconUtils::SetSize(iMyIconMask, TSize(KMyIconMaxWidth, KMyIconMaxHeight));
 
    // Activate the window, which makes it ready to be drawn
    ActivateL();
    }
 
// -----------------------------------------------------------------------------
// CMyAppView::CMyAppView()
// C++ default constructor can NOT contain any code, that might leave.
// -----------------------------------------------------------------------------
//
CMyAppView::CMyAppView()
    {
    // No implementation required
    }
 
// -----------------------------------------------------------------------------
// CMyAppView::Draw()
// Draws the display.
// -----------------------------------------------------------------------------
//
void CMyAppView::Draw( const TRect& aRect ) const
    {
    // Get the standard graphics context
    CWindowGc& gc = SystemGc();
 
    // Clears the screen
    gc.SetBrushColor(KRgbBlack);
    gc.Clear( aRect );
 
    TPoint point = TPoint(aRect.Center().iX - (KMyIconMaxWidth/2), 
        aRect.Center().iY - (KMyIconMaxHeight/2));
 
    // Draw the bitmap
    gc.BitBltMasked(point, iMyIcon, aRect, iMyIconMask, EFalse);
    }
 
// -----------------------------------------------------------------------------
// CMyAppView::SizeChanged()
// Called by framework when the view size is changed.
// -----------------------------------------------------------------------------
//
void CMyAppView::SizeChanged()
    {  
    DrawNow();
    }
 
// End of File

In the PKG file

; Normal lines for a package file
; and other files for the application
"\epoc32\data\z\resource\apps\My_Icon.mif"-"c:\resource\apps\My_Icon.mif"

Related Links

• How to create a MIF file?