Date: Fri, 02 Apr 1999 13:50:07 -0500 (EST) From: John Baldwin <jobaldwi@vt.edu> To: java@freebsd.org Subject: Swing help, please... Message-ID: <XFMail.990402135007.jobaldwi@vt.edu>
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I hope ya'll don't mind me asking a Java-related question on here. I'll keep it short: For a project I am working on, I am using Swing to display a program that deals with graphs and graph theory (algorithms, etc.) and am having problems labeling the points on the graph. I've tried reading the docs on Sun's site, but I still have some questions. I'm trying to label the graph points via JLabels, btw. The graph itself is currently drawn manually via calls to a Graphics object inside of an extended JPanel's paintComponent(). When a new point is created, I create a new JLabel and add() it to the extended JPanel(). However, it doesn't actually draw itself until the window is forced to repaint (such as when the JInternalFrame containing the graph is resized). Shouldn't it just draw itself when it is added in or do I manually need to call something else, like label.repaint()? Secondly, I want the labels to be "attached" to the Vertices of the graph and thus to follow them around. However, with a FlowLayout, they just ignore the location I provide for them in setLocation(). So, I turned off the LayoutManager for the panel, and now they don't display at all. I'm guessing that I need to set their size manually, in which case, how do I figure out how much room a string is going to take up so that I can give the label an accurate size? Thanks. P.S., If anyone knows of good resources I can go to for help with these questions I'd really appreciate it. Thanks. --- John Baldwin <jobaldwi@vt.edu> -- http://members.freedomnet.com/~jbaldwin/ PGP Key: http://members.freedomnet.com/~jbaldwin/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-java" in the body of the message
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