osx - Java/Swing - Tooltip rectangle -

-

i'm developing java/swing project, , i'm stuck in customization process.
i've extended jtooltip , overrided paint() method draw own tooltip, can't manage remove background around tooltip.

here's paint() override:

/* (non-javadoc)  * @see javax.swing.jcomponent#paint(java.awt.graphics)  */ @override public void paint(graphics g) {          string text = getcomponent().gettooltiptext();      if (text != null && text.trim().length() > 0) {         // set parent not opaque         component parent = this.getparent();         if (parent != null) {             if (parent instanceof jcomponent) {                 jcomponent jparent = (jcomponent) parent;                 if (jparent.isopaque()) {                     jparent.setopaque(false);                 }             }         }          // create round rectangle         shape round = new roundrectangle2d.float(4, 4, this.getwidth() - 1 - 8, this.getheight() - 1 - 8, 8, 8);          // draw background         graphics2d g2 = (graphics2d) g.create();         g2.setrenderinghint(renderinghints.key_antialiasing, renderinghints.value_antialias_on);         g2.setcolor(getbackground());         g2.fill(round);          // draw left triangle         point p1 = new point(4, 10);         point p2 = new point(4, 20);         point p3 = new point(0, 15);         int[] xs = {p1.x, p2.x, p3.x};         int[] ys = {p1.y, p2.y, p3.y};         polygon triangle = new polygon(xs, ys, xs.length);         g2.fillpolygon(triangle);          // draw text         int cheight = getcomponent().getheight();         fontmetrics fm = g2.getfontmetrics();         g2.setcolor(getforeground());         if (cheight > getheight())             g2.drawstring(text, 10, (getheight() + fm.getascent()) / 2);         else             g2.drawstring(text, 10, (cheight + fm.getascent()) / 2);          g2.dispose();     } }

here's (white) background want remove:
enter image description here

i'm running java 1.7.0_05 under osx.

it may because you're setting parent opaque after calling super.paint. also, have called setopaque on jtooltip ? finally, can in addnotify instead of executing code @ every draw:

public void addnotify() {     super.addnotify();     setopaque(false);     component parent = this.getparent();     if (parent != null) {         if (parent instanceof jcomponent) {             jcomponent jparent = (jcomponent) parent;             jparent.setopaque(false);         }     } }

Comments

Post a Comment

Popular posts from this blog

c# - SVN Error : "svnadmin: E205000: Too many arguments" -

-
i trying reposotries using c# code process svncommand = null; var psi = new processstartinfo("svnadmin"); psi.redirectstandardoutput = true; psi.redirectstandarderror = true; psi.useshellexecute = false; psi.arguments= @"dump c:\repositories\myrepo > c:\temp\myrepodumpfile.dump"; using (svncommand = process.start(psi)) { var myoutput = svncommand.standardoutput; var myerror = svncommand.standarderror; debug.write("output :" + environment.newline + environment.newline + myoutput.readtoend() + environment.newline + "error :" + environment.newline + environment.newline + myerror.readtoend()); svncommand.close(); } when use dump command commandline svnadmin dump c:\repositories\myrepo > c:\temp\myrepodumpfile.dump it works fine when try ...
Read more

c++ - Using OpenSSL in a multi-threaded application -

-
i have been writing soap client application in c++ on ubuntu using openssl https transport , pthreads threading. have number of threads - 1 central data acquisition thread periodically gets worker threads make soap requests via shared mutex protected queues. reading documentation openssl found is openssl thread-safe? in openssl faq describes mechanisms required ensure thread safety when using openssl. implemented , works fine. the reason question conceptual difficulty really. thinking implementing same functionality application has already, instead of using threads, create 2 seperate applications : 1 worker thread (of multiple copies running) , main data acquisition thread. use tcp sockets communicate between 2 rather mutex protected queues. may bad idea not important - confusing me would have implement same functions required ensure openssl thread safety in second approach or not? my guess not have , treated independent (indeed surely must many applications use openssl) re...
Read more

All overlapping substrings matching a java regex -

-
is there api method returns (possibly overlapping) substrings match regular expression? for example, have text string: string t = 04/31 412-555-1235; , , have pattern: pattern p = new pattern("\\d\\d+"); matches strings of 2 or more characters. the matches are: 04, 31, 412, 555, 1235. how overlapping matches? i want code return: 04, 31, 41, 412, 12, 55, 555, 55, 12, 123, 1235, 23, 235, 35. theoretically should possible -- there obvious o(n^2) algorithm enumerates , checks substrings against pattern. edit rather enumerating substrings, safer use region(int start, int end) method in matcher . checking pattern against separate, extracted substring might change result of match (e.g. if there non-capturing group or word boundary check @ start/end of pattern). edit 2 actually, it's unclear whether region() expect zero-width matches. specification vague, , experiments yield disappointing results. for example: string line = "xx90xx"; strin...
Read more