RE: Tooltips in JList

[thanhnam_java]

Dear All Have you got the J@Whiz test program for Java 2 Platform? Could you help me having J@Whiz? Thank Nam -----Original Message----- From: Arnaud Hallais [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 07, 2001 3:55 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Re: Tooltips in JList Ok swingers I found the (at least one) solution in the Sun Community discussion archive "Mr jay_suri had the same problem way back in 1999"   I needed to overwrite the method getToolTipText(MouseEvent ev) of the JList component. the mouse event gives me the position of the mouse so I can determine on which item it is on. I was probably day dreaming when I said this way was not working because now it is!   About Marijn last tip, I found out that components returned by the method getListCellRendererComponent are not currently added to the JList panel. they are just used by the JList, which paints them in its own graphical context. So setting a tooltips on these components is useless.   thanks for every one help ----- Original Message ----- From: Marijn H. van der Ploeg To: Arnaud Hallais ; [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] ; [EMAIL PROTECTED] Sent: Thursday, June 07, 2001 10:06 AM Subject: Re: Tooltips in JList Hi,   Remember, you have to tell the Tooltipmanager that it's supposed to pay attention:       ToolTipManager.sharedInstance().registerComponent(this); // "this" is a JList-derivate      Cheers,   Marijn   ----- Original Message ----- From: Arnaud Hallais To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] ; [EMAIL PROTECTED] Sent: Thursday, June 07, 2001 9:09 AM Subject: Re: Tooltips in JList Well I tryed your solution, and ...... back to the same point,No tooltips! the JList component behaves like if it has one of these transparent panel on top to catch all mouse events, so the JLabel items never know the mouse is over them. Registering them to the ToolTipManager has no effect.   here is my extension of the DefaultListCellRenderer class       class MyListCellRenderer extends DefaultListCellRenderer {         public Component getListCellRendererComponent(JList list,Object value,int index,boolean sel,boolean focus) {             Component c = super.getListCellRendererComponent(list,value,index,sel,focus);             if (c instanceof JLabel) {                 // System.out.println("coucou "+String.valueOf(index));                 // ToolTipManager.sharedInstance().registerComponent((JLabel)c);                 ((JLabel)c).setToolTipText("My tooltip for index "+String.valueOf(index));             }             return c;         }     }   thanks   ----- Original Message ----- From: Greg Munt To: Arnaud Hallais ; [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] ; [EMAIL PROTECTED] Sent: Wednesday, June 06, 2001 5:46 PM Subject: Re: Tooltips in JList IIRC DefaultListCellRenderer returns JLabels cast to Component. So, simply cast them to JComponent, to set the tool tip text. -----Original Message----- From: Arnaud Hallais <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]> Cc: [EMAIL PROTECTED] <[EMAIL PROTECTED]>; [EMAIL PROTECTED] <[EMAIL PROTECTED]> Date: Wednesday, June 06, 2001 04:32 Subject: Tooltips in JList Hello,   I'd like to make a JList which displays different tooltips depending on which item the mouse is on. Is there any simple way to do this, I did not find it, sorry!   1 - I tryed to overwrite the JList method getToolTipText() but I am missing the position of the mouse so I can't determine which item is under the mouse 2 - I tryed to overwrite the DefaultListCellRenderer method getListCellRendererComponent to has a tooltip to all of the item coponents but they are Component not JComponent so no setTooltipText() method. 3 - I am stuck!   thanks for any advise   a++