to select a single cell in NSMatrix

FROM : Navneet Kumar
DATE : Sun Jan 06 03:46:36 2008

Hi,

I am working on an app that shows a file's preview in hex (see attached
image of the NSMatrix).

I wish to highlight a single cell when the user clicks on it. For that I
zeroed in on target/action mechanism.

But its not working for me.

What I have done:



In AppController.m in init():

[matrixHex setTarget:@selector(cellClicked:)];

[ self enableHexCells];



In enableHexCells() I'm doing:

-selecting cells recursively(selectCellAtRow: column:), then

[[matrixHex selectedCell] setEnabled];



In cellClicked() I'm doing:

[[sender selectedCell] setHighlighted:YES]



For target/action mechanism I have connected cellClicked in AppController as
the target of this NSMatrix.





What's the right way to implement this mechanism. In debugger the control
never reaches cellClicked().



Wishes,

Navneet