People, any clue? Struggling really hard. On Fri, Dec 18, 2009 at 11:23 AM, Dees <[email protected]> wrote: > Hi Jon, > > Did you get a chance to look at this? > From whatever posts available online, I could not get a clue what is > going wrong. > Please respond. > > Thanks, > Shefali > > On Mon, Dec 14, 2009 at 12:12 PM, Dees <[email protected]> wrote: >> On Fri, Nov 13, 2009 at 8:26 PM, Jon TURNEY <[email protected]> >> wrote: >>> On 30/10/2009 09:06, Dees wrote: >>>> >>>> Your reply is much appreciated Jon. I will try to be more specific >>>> about the problem in further mails. >>>> >>>> On Thu, Oct 29, 2009 at 8:11 PM, Jon TURNEY<[email protected]> >>>> wrote: >>>>> >>>>> On 28/10/2009 05:57, Dees wrote: >>>>>> >>>>>> I have developed a Java application involving jTree with extensive >>>>>> drag and drop support, which runs correctly in my Linux box. However, >>>>>> when I switch to a windows box and access the same Linux box using >>>>>> cygwin x-server, the drag and drop in jTree stops working. >>>>>> Interestingly, rest of the application still works fine. After >>>>>> analyzing a bit I found that x-server is able to recognize the drag >>>>>> event but fails to recognize a drop event. >>>>> >>>>> Details? >>>> >>>> OS : Suse Linux Enterprise Server 10 (i586) >>>> Version : 10 >>>> Patch level : 3 >>>> Other version information: >>>> Java : JDK 5 >>>> Cygwin setup-version: 2.573.2.3 >>>> Also tried using Xming 6.9.0.31 ssh same Linux setup from Windows, but >>>> that also doesn't solve the problem. >>>> >>>>> >>>>>> Is there any setting, which should be done prior to running the Java >>>>>> swing applications? >>>>>> >>>>>> Here is a sample code which behaves in exactly same way. >>>>>> http://www.java2s.com/Code/Java/Swing-JFC/TreeDragandDrop.htm >>>>> >>>>> I have no idea how to use that java code to reproduce the problem you are >>>>> seeing. >>>> >>>> Using the above java code in Linux: >>>> 1. Download and Install Java Development Toolkit on your Linux box >>>> (Java sun download site: >>>> http://java.sun.com/javase/downloads/index.jsp), if you do not have it >>>> already. >>>> 2. Save the sample code in the above link with the file name >>>> TreeTester.java, say in /home/user/ >>>> 3. Navigate to TreeTester.java from shell, and compile the java code: >>>> # cd /home/user/ >>>> # /usr/java/jdk1.5.0_14/bin/javac TreeTester.java >>>> Ignore any warnings of deprecated APIs. >>>> 4. This will create a few .class files in /home/user/ directory. Final >>>> step is to run the Java code, using: >>>> # /usr/java/jdk1.5.0_14/bin/java -classpath . TreeTester >>>> This will open up a GUI, with a jTree each on left and right pane. >>>> You can drag and drop any of the leaf nodes from one jTree to the root >>>> node of the other jTree and this should add a new node in the other >>>> jTree. You will get messages on console for the operations being >>>> performed. Now ssh the same box using cygwin/xming from any other >>>> windows box, and run the application using command in step 4. You >>>> should be able to drag (a small icon will come under cursor indicating >>>> that something is being dragged) but when you will drop it, the new >>>> node would not be added to the tree. Thats where lies my problem!!! >>> >>> Thanks for the test case and instructions, this makes it much easier for me >>> to try it out. >>> >>> However, this testcase and your jar archive both work fine for me (using >>> Xserver 1.7.1-3)! >>> >>>>>> May be my problem is related to some setting. Though, not sure. >>>>>> Has anybody come across something similar? What should be done then? >>>>>> Please let me know. >>>>> >>>>> No it's probably a bug in Cygwin/X. But you're going to need to be a lot >>>>> more specific about the problem before any progress can be made on fixing >>>>> it. >>> >>>> Also, putting some debug messages in the code lets me conclude that >>>> it's the drop event which is not being recognized, as the main control >>>> never reaches there. >>> >>> There is not really any drop event, as far as the X server is concerned, >>> just mouse click and motion events, which are passed on to you application >>> (which has a framework to interpret them as dragging and dropping an item). >>> >>> Now having a better idea of the problem, it seems less likely it is an >>> Xserver bug at all. The only Xserver cause I can think of would be if it >>> was somehow not sending the correct events to your applications window, >>> which you could test using xev -id <your applications window id> (you can >>> use xwininfo to find the window id) >>> >> I have tried this, but could not get any idea if any event is going wrong. >> Here is the output of xev -id 0xe00021 (only for drag and drop event): >> >> LeaveNotify event, serial 13, synthetic NO, window 0xe00021, >> root 0x5a, subw 0xe00025, time 3560250, (87,65), root:(91,95), >> mode NotifyGrab, detail NotifyVirtual, same_screen YES, >> focus YES, state 256 >> >> FocusOut event, serial 13, synthetic NO, window 0xe00021, >> mode NotifyGrab, detail NotifyAncestor >> >> EnterNotify event, serial 13, synthetic NO, window 0xe00021, >> root 0x5a, subw 0xe00025, time 3565375, (212,48), root:(216,78), >> mode NotifyUngrab, detail NotifyVirtual, same_screen YES, >> focus YES, state 0 >> >> KeymapNotify event, serial 13, synthetic NO, window 0x0, >> keys: 90 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 >> 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 >> >> FocusIn event, serial 13, synthetic NO, window 0xe00021, >> mode NotifyUngrab, detail NotifyAncestor >> >> KeymapNotify event, serial 13, synthetic NO, window 0x0, >> keys: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 >> 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 >> >> LeaveNotify event, serial 13, synthetic NO, window 0xe00021, >> root 0x5a, subw 0xe00025, time 3569046, (205,211), root:(209,241), >> mode NotifyNormal, detail NotifyNonlinearVirtual, same_screen YES, >> focus YES, state 0 >> >> Does the window 0x0 in two events in the log(above) signify anything >> misbehaving? >> Your reply is much awaited and appreciated. >> >> >>> -- >>> Jon TURNEY >>> Volunteer Cygwin/X X Server maintainer >>> >> >
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