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Re: Standard "combo" button class?

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Re: Standard "combo" button class?

Subject: Re: Standard "combo" button class?
From: Andreas Mayer <email@hidden>
Date: Mon, 19 Mar 2007 22:52:09 +0100


Am 19.03.2007 um 22:21 Uhr schrieb Nicholas Meyer:

I'm curious, is there a standard class for the type of button which sends an action when clicked OR opens a menu when the mouse button is pressed and held for a short time (i.e. the Build button in XCode)?


I don't think there is.

If not, would subclassing NSButton to set an NSTimer on mouseDown: that shows the menu and short-circuits the button's tracking loop be the best way to handle it? Or is there a way to subclass NSPopUpButton that would be easier?


I guess something like that is possible.

But the "right" way is probably to replace the cell's mouse handling code. Have a look at my AMRollOverButton class. It has the ability to display a pop up menu:

http://www.harmless.de/cocoa-code.php#rollover

Just ignore all the drawing stuff; the interesting part is AMRollOverButtonCell's -trackMouse:inRect:ofView:untilMouseUp: method.


Andreas
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  >Standard "combo" button class? (From: Nicholas Meyer <email@hidden>)




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