java - JFrame acting strangely. Sporadically displays JLabel -

-

its hard explain whipped out phone , video'd problem i'm having:

http://www.youtube.com/watch?v=kdoende8w2q

simply put, image (border @ bottom can see, implemented jlabel) should remain there @ times, instead appears 1 second, disappears , flashes sporadically. 

import java.awt.button; import java.awt.dimension; import java.awt.image.bufferedimage; import java.io.file; import java.io.ioexception;   import javax.imageio.imageio; import javax.swing.imageicon; import javax.swing.jframe; import javax.swing.jlabel;  import org.imgscalr.scalr;  import com.github.sarxos.webcam.webcam; import com.github.sarxos.webcam.webcampanel; import com.github.sarxos.webcam.webcamresolution;  public class webcampanelexample extends jframe {      static webcam webcam;     static jframe window;       public static void main(string[] args) throws ioexception {          window = new jframe("test webcam panel");          dimension[] nonstandardresolutions = new dimension[] {                 webcamresolution.hd720.getsize(),                 };          webcam = webcam.getdefault();         webcam.setcustomviewsizes(nonstandardresolutions);         webcam.setviewsize(webcamresolution.hd720.getsize());          webcampanel panel = new webcampanel(webcam);         panel.setfpslimited(false);          panel.setfillarea(true);          window.add(panel);          ////////////          bufferedimage image2 = imageio.read(new file("f:/data/images/image_area.png"));         jlabel guiborder = new jlabel(new imageicon( image2 ));         guiborder.setsize(new dimension(1280,720));         guiborder.setlocation(0, 0);         window.add( guiborder );          ///////////          button button = new button("do something");         button.setsize(new dimension(200,32));         button.setlocation(540, 670);         window.add(button);          ///////////          window.setcomponentzorder(button, 0);         window.setcomponentzorder(guiborder, 1);         window.setcomponentzorder(panel, 2);          ///////////         window.pack();         window.setdefaultcloseoperation(jframe.exit_on_close);         window.setlayout(null);         window.validate();         window.setsize(1280,720);         window.setresizable(false);         window.setvisible(true);      } }

in addition, if matters:

any ideas on potential causes of problem?

edit (by andrew thompson)

 import javax.swing.joptionpane;  import javax.swing.jfilechooser;  import javax.sound.sampled.*;  import java.net.url;  import java.io.bytearrayoutputstream;  import java.io.bytearrayinputstream;  import java.util.date;  import java.io.file;   class accelerateplayback {       public static void main(string[] args) throws exception {          int playbackspeed = 3;      file soundfile;          if (args.length>0) {              try {                  playbackspeed = integer.parseint(args[0]);              } catch (exception e) {                  e.printstacktrace();                  system.exit(1);              }          }          system.out.println("playback rate: " + playbackspeed);           jfilechooser chooser = new jfilechooser();          chooser.showopendialog(null);          soundfile = chooser.getselectedfile();           system.out.println("file: " + soundfile);          audioinputstream ais = audiosystem.getaudioinputstream(soundfile);          audioformat af = ais.getformat();           int framesize = af.getframesize();           bytearrayoutputstream baos = new bytearrayoutputstream();          byte[] b = new byte[2^16];          int read = 1;          while( read>-1 ) {              read = ais.read(b);              if (read>0) {                  baos.write(b, 0, read);              }          }          system.out.println("end entire: \t" + new date());          //this important bit           byte[] b1 = baos.tobytearray();          byte[] b2 = new byte[b1.length/playbackspeed];          (int ii=0; ii<b2.length/framesize; ii++) {              (int jj=0; jj<framesize; jj++) {                      int b3=0;                (int kk = 0; kk < playbackspeed; kk++){               b3 = b3+(int)b1[(ii*framesize*playbackspeed)+jj+kk];                }              b3 = b3/playbackspeed;              b2[(ii*framesize)+jj] = (byte)b3;              }          }         //ends here           system.out.println("end sub-sample: \t" + new date());           bytearrayinputstream bais = new bytearrayinputstream(b2);          audioinputstream aisaccelerated = new audioinputstream(bais, af, b2.length);          clip clip = audiosystem.getclip();          clip.open(aisaccelerated);          clip.loop(2*playbackspeed);          clip.start();           joptionpane.showmessagedialog(null, "exit?");      } }

swapped using jlayeredpane.

workflow essentially:

  1. create jframe
  2. create jlayeredpane
  3. add jlayeredpane jframe
  4. create jpanels (as needed, have three, 1 webcam background, , 2 foreground layers buttons etc)
  5. add jpanels jlayeredpane. set z-index/order add them.

complete example: http://www.roseindia.net/java/example/java/swing/jlayered-overlap-panel.shtml


Comments

Post a Comment

Popular posts from this blog

Perl - how to grep a block of text from a file -

-
it can in xml or text format. how in general grep block of text in perl? <track type="ws"> <range> <rangestart>0</rangestart> <rangeend>146.912</rangeend> <locationindex>0</locationindex> <propertyindex>0</propertyindex> </range> </track> <track type="ps" id="1"> <range> <rangestart>0</rangestart> <rangeend>146.912</rangeend> <locationindex>1</locationindex> <propertyindex>1</propertyindex> </range> </track> i want grep type="ps" , till </range> . one solution open file, read line line , match block. open(fh, "file.txt"); foreach $line (<fh>) { if ($line =~ m/type="cc"(.*?)<\/range>/) { print $1; } } but there more optimal solution without reading file line l
Read more

delphi - How to remove all the grips on a coolbar if I have several coolbands? -

-
Image
if set mycoolbar.fixedorder true,only grip on first band hidden. well,if use delphi 7 create vcl forms application,then put coolbar on , create 3 coolbans hold other controls,only grip , top coolbands can hidden setting mycoolbar.fixedorder:=true. i've uploaded picture make things clear. you got fixedorder property wrong. fixed property not allow bands rearranged if set true . setting property of coolbar true keep user changing bands order @ runtime, user can still move , resize bands. can give advice can do, actual solution problem, well, have wait answer. my advice use 3 coolbars in row , setting "fixedorder" property true , bandborderstyle bsnone . way grip hidden on of them. about property, it's not bug of ide, actual preference of property.
Read more

javascript - Animating array of divs; only the final element is modified -

-
this baffling me @ moment. i'm experienced programmer looking throw bit of surprise fiancee on countdown page our wedding. desired effect simulated confetti falling behind main page. setup follows: i have array of divs in javascript. each div absolutely positioned on page. have interval set updates every 50 or milliseconds. on each tick, run loop on array of divs, , calculations , update positions. problem problem having, however, though can see divs created, stored array, , modified (in case, each has slight randomized rotation) during initialization phase, once tick update position starts, div stored in whatever last slot of array gets position updated. tried hard-coding each div index testing purposes, strictly last element update position. upon printing current "left" , "top" style values each div before , after calculations shows value has been changed, no visible change noticeable. here's basic code: javascript var container;
Read more