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Java Forum / GUI / December 2003add JPanel and JLabel on JButton
Hello, I need to to rather complex layouting on a JButton. I didn`t find a way to do that with html-formatting. How could I make a Jbutton capable of taking JPanels and JLabels ? I porbally have to subclass JButton ... (?) But how do I add this kind of functionality? What methods do I need to override and what should I put there ? > Hello, > I need to to rather complex layouting on a JButton. I didn`t find a [quoted text clipped - 3 lines] > of functionality? What methods do I need to override and what should I > put there ? Why not just make an image of the JPanel and use it as an icon for the button? What is it you want to put in the panel? -- Andrew Thompson * http://www.PhySci.org/ PhySci software suite * http://www.1point1C.org/ 1.1C - Superluminal! * http://www.AThompson.info/andrew/ personal site > Hello, > I need to to rather complex layouting on a JButton. I didn`t find a [quoted text clipped - 3 lines] > of functionality? What methods do I need to override and what should I > put there ? JButton is a container so you can add components in the same way you would normally. The only real problem is that the action event usually received by the JButton will only fire if you 'miss' the components on top, clearly impossible with a GridLayout. So you will have to delegate the events from your JPanels's & JLabel's This will mean adding a mouse listener and/or key listener to your JPanels's & JLabel's detect the event in those listener methods, and perform a yourButton.doClick() on it. I haven't done this, but looking at the API this is the approach I'd take first.  SignatureMike W > JButton is a container so you can add components in the same way you would >normally. JButton button = new Button (); button.add.(new JPanel()); gives a nullpointerexception > > JButton is a container so you can add components in the same way you would > >normally. > > JButton button = new Button (); > button.add.(new JPanel()); Was that a typo? Try.. button.add(new JPanel()); [ look carefully ] > gives a nullpointerexception -- Andrew Thompson * http://www.PhySci.org/ PhySci software suite * http://www.1point1C.org/ 1.1C - Superluminal! * http://www.AThompson.info/andrew/ personal site > I need to to rather complex layouting on a JButton. I didn`t find > a way to do that with html-formatting. > How could I make a Jbutton capable of taking JPanels and JLabels ? > I porbally have to subclass JButton ... (?) But how do I add this > kind of functionality? What methods do I need to override and what > should I put there ? The whole thing sounds like a rather dump idea. You want to place components on a JButton? Why? Are you going for the prize of the most messed up GUI? ... > > How could I make a Jbutton capable of taking JPanels and JLabels ? ... > The whole thing sounds like a rather dump idea. You want to place > components on a JButton? Why? Are you going for the prize of the most > messed up GUI? No, no Harald! Imagine a JTextArea as the component - as the user clicks in it, the app can trigger random text to be inserted.. The user will be messing with their mouse, checking the keyboard, going mad trying to figure why the program is behaving so strangely. It'll be funny, ..trust me! ;-) -- Andrew Thompson * http://www.PhySci.org/ PhySci software suite * http://www.1point1C.org/ 1.1C - Superluminal! * http://www.AThompson.info/andrew/ personal site it is importan to be able to add jpanels and other components on a jbutton to have some complex layout design on a jutton. for example text wrapping arond an image. With the text having different sizes and fonts > it is importan to be able to add jpanels and other components on a jbutton > to have some complex layout design on a jutton. for example text wrapping > arond an image. With the text having different sizes and fonts That can be accomplished in html with css style elements float and font. Can swing text components use css? Sounds like a horrible button. SignatureMike W > it is importan to be able to add jpanels and other components on a > jbutton to have some complex layout design on a jutton. It is not important, it is bullshit. A button has a special purpose, which is not doing some compley layouting, but just occupying some small screen estate, presenting a label and maybe an icon (advanced feature) and an opportunity to click on it. It is your own wishful thinking and an apparent attempt to relaize a rather awful design that makes you think it is an important must-have feature to add components to a button. Unless you step back, look at your design and change it to something useful you will not solve that problem. Which is a home-made problem, only existing becaus of your design. > for example text wrapping arond an image. With the text having > different sizes and fonts In a button? Get real man. How awful do you want your GUI to look like and behave? How large should this button from hell become? Occupying 1/3 of the screen just because you want to have a super fancy label? Should it become so large that users feel the urge to punch this abomination with a fist? ok, I tell you what I intended , it is very simple put doesn't seem to be possible with plain html: The buttonlabel shall have one character in its very center. And another one at the top left corner (in another font and a very small fontsize). The small character in that corner must be totally at the top and left border of the button, leaving no white space between the edge of the button and the charcter. When the button gets resized the small char must still be aligned that way and the big char must stay in the center ... I haven't found a way to fromat that in html, there is ALWAYS some white space between the samll char and the edge of the button. I tried <div> and <table> nothing. 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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