Categories: Symbian C++ | Code Examples | S60

This page was last modified 03:44, 14 May 2008.

From Forum Nokia Wiki

Here is a way of how to load and display transparent icons in S60 3rd Edition .

The following steps is followed if the project is in Carbide C++

To display a transparent icon, firstly you can have Bitmap image file.

Second step is to make a monochrome image of the already created BMP file. This is quite easy, open the image in paint brush or any photo editor. Save the image as Type : Monochrome Bitmap

Copy both the images, the original BMP file and its Monochrome type to the 'gfx' folder of your project

Take the (Projectname).mmp file. Right click the file in Carbide. There will be an option "Add MBM entry". Select It.

In Target File Path : Press the Default button. The project path will be automatically added to the Target File path

Select the Header option

Now press the "Add from project " button. The two images (original and mask ) will be displayed. Select the original image first After that select the mask image

You may also add images from your filesystem

Now select both the selected images , "Pair Image and Mask " button will be highlighted, select it.

If no thumb preview is shown , then select the combined image, After that select the mask depth properties and set it to '1'. Now the preview of the icon will be displayed.

Code

Now comes the developing part

Header file

ImageDisplay.h

#include <eikimage.h>
 
_LIT(KIconName, "\\resource\\apps\\ImageDisplay.mbm");
 
private:
 
	void CreatImage();
 
	/**
	 *From CoeControl
	 */
	virtual TInt CountComponentControls() const;
 
	/**
	 *From CoeControl
	 */
	virtual CCoeControl *ComponentControl(TInt aIndex) const;
		
private:
	CEikImage* iImgCtrl;
 
	CFbsBitmap* iImg;
	CFbsBitmap* iImgM;

Source file

ImageDisplay.cpp

#include <akniconutils.h>
#include <ImageDisplay.mbg>
 
void CImageDisplayAppView::CreatImage()
	{
	
 
	iImgCtrl = new (ELeave) CEikImage;
	iImgCtrl->SetContainerWindowL(*this);
 
	AknIconUtils::CreateIconL(  iImg,
			iImgM, 
			KIconName,
			EMbmImagedisplayBack,
			EMbmImagedisplayBack_mask
			);
	
	 AknIconUtils::SetSize( iImg,  TSize(13, 13) );
 
	 iImgCtrl->SetPicture(iImg, iImgM);
 
	 iImgCtrl->SetExtent(TPoint(20,20),TSize(13, 13));
	 
	}
 
TInt CImageDisplayAppView::CountComponentControls() const
	{
		return 1;
	}
 
CCoeControl* CImageDisplayAppView::ComponentControl(TInt aIndex) const
	{
		switch(aIndex)
			{
			case 0:
				return iImgCtrl;
				break;
 
			default:
				return NULL;
			}
	}

MMP file

The following capabilities and libraries are required:

CAPABILITY        NONE
LIBRARY            fbscli.lib
LIBRARY           aknicon.lib