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Java Forum / GUI / November 2003JComboBox popup sensing mouse clicks
I am have written a custom combo box and want to fire events when the user selects choices. I consider selecting to be either scrolling down the list and pressing enter or clicking on a choice with the mouse. Scrolling down the list and pressing enter is easily sensed with the action listener. But I can not figure out how to sense the mouse clicks I have tried many avenues. I have added an itemlistener which senses selection changes but it fires even when the user presses the arrow keys so that doesn't help. Essentially I need to add a mouse listener to the popup component of the Help!!! I think you ask second time. See http://www.imagero.com/java/mcb/ > I am have written a custom combo box and want to fire events when the > user selects choices. I consider selecting to be either scrolling [quoted text clipped - 9 lines] > > Help!!! This code doesn't have any mouse listener on it so it really doesn't help. The closest i have come is putting a listener on the combo button but that doesn't solve my problem. I need a mouse listener on the choices or the whole popup list??? > I think you ask second time. > See http://www.imagero.com/java/mcb/ [quoted text clipped - 12 lines] > > > > Help!!! > This code doesn't have any mouse listener on it so it really doesn't help. because I extended JComboBox and such things are handled by JComboBox. It is always better to extend something existing then write it from scratch. > > I think you ask second time. > > See http://www.imagero.com/java/mcb/ [quoted text clipped - 12 lines] > > > > > > Help!!! Alright well thanks. But I still am looking for answer to my question which I will repeat: Does anyone know how th add a mouse listener to the actual popup box of the jcombobox in order to register clicks on the particular items? Any help appreciated > > This code doesn't have any mouse listener on it so it really doesn't > help. [quoted text clipped - 19 lines] > > > > > > > > Help!!! The popup part is really a JPopupMenu. What you'll want to do is grab the popup menu when you create this guy and add an ActionListener to the menu items. (and a PopupMenuListener to the popup menu) You should probably add the actionlistener when you get a popupWillBecomeVisible message. I had to so something similar when I created a calender ui component that looked like the one in OutLook. The combo box had an editable date, but when it popped up, it displayed a calendar ui. Under the covers, I grabbed the popup menu and removed all the items from it and then added my calendar ui when I got the popupWillBecomeVisible message. -Bryan > Alright well thanks. But I still am looking for answer to my question > which I will repeat: Does anyone know how th add a mouse listener to [quoted text clipped - 25 lines] > > > > > > > > > > Help!!! Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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