EOMatrixAssociation
- Inherits from:
- EOAssociation : EODelayedObserver (EOControl) : NSObject
- Conforms to:
- NSCoding
- (EOAssociation)
- EOObserving (EODelayedObserver)
- NSObject (NSObject)
Declared in:
- EOInterface/EOMatrixAssociation.h
Class Description
An EOMatrixAssociation allows you to populate an NSMatrix's cells (Application Kit). EOMatrixAssociation supports connections for both cell titles and icons, depending on the matrix's prototype cell. You define the prototype in Interface Builder (to display an icon only, text only, or both).
| Usable With |
| NSMatrix (Application Kit) |
| Aspects | |
| enabled | A boolean attribute of the objects, which determines whether the matrix is enabled. |
| image | An NSImage attribute of the objects to display in the cell. |
| title | An attribute of the objects to display in the cell. |
| Object Keys Taken | |
| target | On receiving an action message from the matrix, an EOMatrixAssociation updates its display group's selection. |
Examples
Suppose that you want to display actors' names and pictures in an NSMatrix. Start with a TalentPhoto display group (where a TalentPhoto object has a relationship to its Talent object). In interface builder, create a button containing both an image and text. Then, alternate-drag to create a matrix of buttons. Control-drag from the matrix to the photo display group. In the Connections inspector, choose EOMatrixAssociation, and bind the image aspect to the photo attribute. Repeat, binding the title aspect to the talent.lastName attribute.
Note that you can group the matrix in a scroll view. An EOMatrixAssociation will automatically manage the size of the matrix for this (for vertical scrolling only).