Hi Trygve,
I don't you should override -value or anything like that. NSOnState
and NSOffState should do fine.
You should draw your pressed art if and only if -isHighlighted is true.
It's probably appropriate to subclass NSButtonCell for this and draw
what you like. In IB3, you can select the cell from a button and
choose a custom subclass.
Concerning what to override, -drawWithFrame:inView: is the top level
drawing method for cells, the analog of -drawRect:. -
drawBezelWithFrame:inView: is called from -drawWithFrame:inView:, and
is used to draw the part of a button that interior text and images sit
on. This the glassy looking part of a standard aqua push button, for
example. Finally, -drawInteriorWithFrame:inView: is also called from -
drawWithFrame:inView:, and this method draws the text and/or images
that sit on top of the bezel.
-Ken
On Feb 23, 2008, at 4:19 AM, Trygve Inda <[EMAIL PROTECTED]> wrote:
I need an NSButton with 5 different graphics and two states:
State 0 (enabled & disabled graphics)
State 1 (enabled & disabled graphics)
Pressed/Tracking state
I was thinking to subclass NSButton and in IB use "Momentary Change"
so that
I can set the alt image to always be my Pressed/Tracking state and the
subclass will change the main image to one of the other 4 images as
needed.
The problem I see is that Momentary Change buttons are really single
state
so I think my action method for the button would have to also toggle
a value
variable and I may need to override value/setValue to use my custom
value.
If I set up a two state button, how can I provide a custom tracking
image...
Eg when drawRect is called, how can I tell that my button is being
pressed
and tracked?
Is there an existing class out there that will just do this? I
haven't come
across one.
Thanks,
Trygve
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