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Comments:
<0> Greetings, #java
<1> Morning
<0> I've put my first image onto a JFrame a few days ago, and up to date I've managed to get it nicely into a JScrollPane..
<0> Everything is working perfectly... moving.. sizing.. and so on
<0> But now I would like to translate the virtual coordinates from client area (say mouse click) into original coordinates on the image
<0> I'm stunned. Spent X hours browsing docs and googling... still no clue what to do
<0> Tried all kinds of .getBoundaries, size, location, X Y height, width... nothing ...
<0> Does it have anything to do with the Viewport?
<2> L-S: I think so... I did something similar to that, but it's been a long time ago. Let me see if I can dig up the source code.
<0> yaay
<0> It's kindof confusing... cos the image is in a label, which is in a panel, which is in some layout manager, which is in a frame/dialog, which is relative to the display resolution... you know how it is....
<2> Oh geez
<2> The code I have may not be enough to help with that ^^
<0> doesn't matter
<0> just hit me with anything you have
<0> related to viewports, or whatever does the trick
<2> OK, actually, what I have is a lot more simplistic, I'm not sure this is going to help at all.
<2> I was just drawing to a Graphics object contained within a JFrame
<0> oh... :(
<0> too bad
<0> Thanx for digging it up, though!
<2> No problem, sorry for the false hope!
<0> I'll stay here while I continue bashing google, perhaps some good soul will think of something
<0> lol it's ok
<2> I haven't done Java UI stuff in ages.. too busy doing web stuff for work!
<0> rgr
<3> hi
<3> pretty basic question
<3> what's the difference between
<3> public cl*** Foo { }
<3> and
<3> cl*** Foo { } ?
<4> public & package protected. See the Java tutorial.
<5> is there any API that lets me craft my own TCP/UDP packets?
<6> slt
<7> hi
<7> does anyone please know how to create an Image or BufferedImage object from a BMP stored in a local file please? toolkit.getImage or .createImage only seems to deal with JPG/PNG/GIF
<7> nice nick
<8> thanks
<9> BMP will no doubt require a separate cl*** to handle and convert, it's an MS image format and Sun probably didn't want to get in too much trouble. That and the fact that it's not overly common these days?
<7> mike2: how about tiff?
<7> basically anything without compression---I'm only wanting to store binary images
<9> tiggger, almost certainly supported somewhere, but you'll notice that JPEG, GIF and PNG are the web's favoured image formats
<7> ok thanks mike2
<10> bmp is more or less the raw bitmap data afaik
<10> tiggger : btw if you control the local files just convert them jpg
<9> or png if the lossy nature of jpg is unacceptable
<10> actually you can configure to be loss free afaik
<7> I think png might be OK actually
<10> but then you lose the compression rate
<10> so you'll have rather big jpgs
<7> I'm creating "binary images", ie. simply black and white images which act as masks for JPGs. Trouble is, when I save the resulting masks as JPGs, white edges get interpolated
<10> if you have full control over the process you should be abe to switch that off
<7> there's no pure binary(0,1) type of BufferedImage, I think that's my problem. Perhaps if I change to PNG it might not perform this interpolation
<9> yes, if accuracy is important, use a non-lossy format, if it's just 2 bitplane then png or gif are usable interchangeably
<9> one bitplane really isn't it
<7> I guess a GIF would suffice too. I hadn't thought about it
<7> Out of curiosity, what time do most people here (who are active) find it easiest to code?
<7> I guess you're all asleep :) Night guys
<10> easiest to code : hello world :)
<4> At this moment the best time for me is when my PE9 server is running :)
<10> lol
<11> what would be an efficient way of copying an InputStream to a byte array? I've googled it but can't find a definitive answer
<1> read from it, write to a ByteArrayOutputStream
<11> and then use the toByteArray() of ByteArrayOutputStream?
<1> sure, why not... sounds logical.... try it.
<11> when writing to the ByteArrayOutputStream would it be inefficient to do that one byte at a time?
<11> cuz i thought about doing it like this: while((x = in.read()) != -1) { out.write(x) }
<12> An exception has occurred in the compiler (1.4.2_01). Please file a bug at the Java Developer Connection (http://java.sun.com/cgi-bin/bugreport.cgi) after checking the Bug Parade for duplicates. Include your program and the following diagnostic in your report. Thank you.
<12> java.lang.Cl***FormatError: com/sun/tools/javac/v8/util/Name (Illegal method modifiers: 0x409) at java.lang.Cl***Loader.defineCl***0(Native Method)
<12> any idea what this is?
<12> i compiled my prog, ran it. Discovered a bug so fixed it and tried to recompile. Cant compile since. Cant compile any file
<13> hello java
<13> anyone from the philippines?
<14> Hi. In a JTable, How can I know in wich Column was the Click?
<14> JTable target = (JTable)e.getSource(); int col = target.getSelectedColumn();
<13> any pinoys here?
<15> ...
<4> probably a bot, he did the same in another channel.
<4> so far its about the only thing I've seen him "contributing" to this place :/
<16> Lion-O, still bn ?
<17> hi
<17> how can i access straight into hotmail's inbox page? it bounces out to a login page if the user is not logged in. can i just use the normal request with authentication?
<4> daYZman: I think you strawled into the wrong channel.
<17> Lion-O, i'm seeking for a java implementation
<17> trying to accomplish that with java
<4> ach so. I guess a mere http authentication should be able to do the trick.
<4> You might be able to check from manual logging in what scripts are being used and if you might be able to use a form and POST some data to it, not sure there. In the end a plain login should be possible.
<17> hmm okay
<17> i'll give that a try..
<18> hello
<18> anyone know much about soft versus weak references?
<18> i'm just curios, does a weak refernce only get collected when memory is tight or just when the GC runs next? (***uming there are no strong refs here)
<18> i read somewhere that soft refs only get collected when memory is tight but what about weak references?
<19> Is there anyway to limit my java applications use of resources so that it doesnt tie up 100% of the CPU?
<20> icenyne: program properly? use the operating system's functionality? 100% is not a problem - when there is nothing else running, by the way.
<20> you DO want your operating system to make full use of the cpu, don't you?
<18> weak references anyone?
<0> Hey, Java lovers
<0> I'm writing some tiny swing appy, and I'm wondering about that invokeLater, the default entryPoint for the program
<0> It says it's for thread safety... but is this paranoia, or does it really matter?
<20> L-S: it matters.
<20> entry point for java applications is the static main method.
<21> if I made a seprate java file that was a list of functions I have written and commonly use, is there a way to import them into the global namespace of a java program im writeing? so that i can use then like a native function?
<21> *them
<20> MyWorldIsHer: stop thinking in c, c++ or whatever it is that has messed up your brain.
<20> MyWorldIsHer: BEGINNERSBIBLES Download these two bibles (free of charge): 1) Sun Java Tutorial (http://java.sun.com/docs/books/tutorial/) 2) Bruce Eckel's "Thinking in Java" (http://www.bruceeckel.com/)
<20> eckel's book has been said to be a good read for people with c/c++ experience.
<4> Best way to make your own toolbox (IMO) is to create package and import whatever you need.
<4> create a package ofcourse ;)
<20> hi lion
<4> Yo Clackwell
<22> not a C guru but i highly doubt C is coded that way either :)
<22> maybe javascript
<20> people get weird ideas in the very short times they spend with languages in university courses, i bet.
<22> no doubt
<20> they still don't seem to teach communications though...<frown>
<22> i doubt there are too many professors that are actually ex programmers heh
<21> actually clackwell... aside from ***umeing everyone is a noob, im a java dev for 3+ years... it had just slipped my mind. Once in your life, you could, I dunno, be helpful? Thanks for being useless as usual.
<22> haha yeah right
<22> apprantly he has spent too much of the last 3 years worshiping his woman
<23> s/woman/hand/;
<22> :0
<22> i don't understand why beginners just can't admit they are beginners
<22> might learn a thing or two
<24> hey!! :)
<25> Hi, is there a way to kill a thread? I'm using a HTTP connection and sometimes it's dead long...
<4> latest JRE's don't recommend on using a brute "stop". Best is to write the thread in such a way that it can detect itself when it should stop. For example; a public cl*** variable can do it.
<24> I want to replace certain bytes in a file without affecting the rest of the file, I ***ume I'll use RandomAccessFile, seek to the required position in the file, then how do I replace the next 5 bytes ???
<24> or should I use something other than RandomAccessFile ?
<25> Lion-o: yeah I know.. But the method I use to read the URL is out of my control.. I can't check a state while reading
<4> netwit: you can basicly run through the whole file sequentially and check for the bytes to change.
<4> Lorraine_: well, if you start a thread you can theoreticly stop it.
<25> I tested stop, which is deprecated, but it doesn't work anyway.. It just makes the top threads stop waiting to join
<24> Lion-O: the position where I want to change the bytes is fixed
<24> for instance, lets ***ume I want to replace the bytes from position 0 to 5 with something else
<4> Lorraine_: huh ?
<26> hax0r.
<4> Lorraine_: I can tell you from personal experience that it will stop a thread :P
<24> I can seek to the required position, but which method do I use to "replace" the bytes with something else ??
<4> netwit: then I don't really see the problem.
<25> Lion-o: Well it still runs, I see the console output...
<4> Lorraine_: well, the "stop" routine is deprecated for a reason. It can do its job but still; you're taking an awfull risk regarding stability.
<25> yeah...
<24> Lion-O: if I do a write() there, then wouldn't it "insert" the data rather than "replace" it
<4> Lorraine_: you could also try to suspend or pause it. Or better yet; rewrite the cl*** you're using.
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