Designing a smart Swing GUI with design patterns

Hi !
I have to build a quite big Swing GUI from
scratch. I would like to use smart design patterns to :
* ensure reusability of some components
* offer a framework-like set of solid classes
to deal with generic problems
* try to respect MVC pattern as close as possible
from the real MVC spirit (not the half MVC
pattern Swing is build upon)
Could somebody give me any link towards ressources/docs/articles dealing with how
to build such a smart Swing GUI ?
Thanx a lot !

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(Youtube-) Video in a Swing GUI

Hey everyone,
I'm currently trying to play a video in my Swing GUI with JMF but I really can't get it to work.
With the help of google I got this far:
import java.awt.BorderLayout;
import java.awt.Component;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import javax.media.CannotRealizeException;
import javax.media.Manager;
import javax.media.NoPlayerException;
import javax.media.Player;
import javax.swing.JFrame;
public class MediaPanel extends JFrame {
    public MediaPanel() {
        setLayout(new BorderLayout()); // use a BorderLayout
        // Use lightweight components for Swing compatibility
        Manager.setHint(Manager.LIGHTWEIGHT_RENDERER, true);
        URL mediaURL = null;
        try {
            mediaURL = new URL("http://www.youtube.com/watch?v=Q7_Z_mQUBa8");
        } catch (MalformedURLException ex) {
            System.err.println(ex);
        try {
            // create a player to play the media specified in the URL
            Player mediaPlayer = Manager.createRealizedPlayer(mediaURL);
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                add(controls, BorderLayout.SOUTH); // add controls
            mediaPlayer.start(); // start playing the media clip
        } // end try
        catch (NoPlayerException noPlayerException) {
            System.err.println("No media player found");
        } // end catch
        catch (CannotRealizeException cannotRealizeException) {
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        } // end catch
        catch (IOException iOException) {
            System.err.println("Error reading from the source");
        } // end catch
    } // end MediaPanel constructor
}But all I get is errors:
Warning: The URL may not exist. Please check URL
No media player found
Can you please please help me get this working? I would really appreciate a little walkthrough
Best regards,
Patrick
Edited by: 954807 on Aug 24, 2012 6:52 AM

Just use \ tags. People don't like to go to external sites.
I really advise you to consider using JavaFX 2 here. Swing is old and not really supported anymore, JMF is also old and absolutely not supported anymore.

How to run Java Swing GUI on embedded ARM Linux platform?

The object is:
A touch panel, running Java Swing GUI, with a 25 fps 320x320 mono JPEG image animation and other control buttons.
What I have now:
A Developing Board with: ARM926 CPU at 266MHz, 128M RAM, 64M ROM, ported with arm-linux and MiniGUI.
My plan is:
1. installing a X-window system to the platform, discarding the MiniGUI.
2. install j2re-1.3.1-RC1-linux-arm.tar.bz2 to the platform.
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What is recommended / preferred design pattern for Swing?

I have been confused by the apparent variety of design patterns used when putting together a Swing GUI application. For example, one pattern does this:
public class myclass extends JFrame {
myclass() {
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public class myclass extends JFrame {
myclass() {
super("title");
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// do all the stuff here
Is there a preferred way to do this stuff, or is it a matter of personal preference?

Hi
I txnk there are no choice : the only valid aproach is (1)
because :
main is a "know" entry point just for instantiate some classes
the event thread is alive after main is completed, so your app have a GUI elements who responds to some events via some classes (the listeners for these events).
Of course you can add listeners at main level but, what hapen if
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Normally the JFrame have some member funct or some internals classes to respond some events (at this point there are some alternatives)
Hope this help
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Habin

Hi
I try to explain with some more detail (sorry for my bad english) :
I write a complete hotel reservation app with Java+Bd (relational). This app is used by diferent users types.
The administrator has all privileges (can do every action) and other users can do only some actions (make a reservation, check-in, check-out etc but not modify a
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The app is a MDI app, there are a menu and menuitems
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Jason

JTerosky wrote:
I'm starting a new project which involves acquiring data from various pieces of equipment using a GPIB port. I thought this would be a good time to start using Classes. I created a GPIB class which contains member data of: Address, Open State, Error; with member vis such as Set Address, Get Address, Open, Close...general actions that all GPIB devices need to do. I then created a child class for a specific instrument (Agilent N1912 Power Meter for this example) which inherits from the GPIB class but also adds member data such as Channel A power and Channel B power and the associated Member Functions to obtain the data from the hardware. This went fine and I created a Test vi for verfication utilizing a typical Event Structure architecture.
However, in other applications (without classes) I typically use the Producer/Consumer Design Pattern with Event Structure so that the main loop is not delayed by any hardware interaction. My queue data is a cluster of an "action" enum and a variant to pass data. Is it OK to use this pattern with classes? I created a vi and it works fine and attached is a png (of 1 case) of it.
Are there any problems doing it this way?
Including the error cluster as part of the private data is something I have never seen done and ... well I'll have to think about that one.
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

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I look at each procedure individually and consider which sheets need to be unprotected for it to run. Then in each procedure I write:
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Dim bSheet2Protected as boolean
bSheet1Protected = Sheet1.ProtectContents
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bSheet1Protected.Unprotect
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Hi JP3O,
I think it is a good practice to unprotect the worksheet before execute some code and protect it back after the code execute finished.
>>But I imagine that maybe there are better ways of doing this. What is your preferred design pattern for unprotecting and reprotecting sheets with VBA?<<
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Regards & Fei
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https://wiki.sdn.sap.com:443/wiki/display/BOBJ/ETLProjectGuidelines
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Connect
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interface IDataTransferrable
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SetData
interface IPlayable
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Pause
Stop
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class TypeB : IConnectable, IDataTransferrable, IPlayable
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here's one way:
if (ob is IPlayable)
Playback(ob);
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void Playback(IPlayable ob)

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http://en.wikipedia.org/wiki/MVC
http://csis.pace.edu/~bergin/mvc/mvcgui.html
...

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Design pattern for swind application development

Hello all,
I am trying to develop a new swings application with the centralized database connectivity for the data transaction .Any one please tell me which design pattern is mostly suitable for the GUI application development using swings .
Thanks in advance
sowjanya

Pu - this is your decision.
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http://en.wikipedia.org/wiki/Design_pattern_(computer_science)
Note also that ther exists a framework called Spring.
Greetings
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Does any body have any design patterns of JSF Web Application Developping?

Can any one answer me some questions?
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I am waiting for your advice!

Ok I'll try to explain Step by step please correct me if I make any mistake because I have not played much with shared variables.
To create a shared variable to an RT target go to the target if tou have already otherwise add an RT target by right clicking the Project>>Add targets and Devices
Then in the target Right clikc and select the variable as shown below.
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In the right side you can select the data type for the shared variable and even you can choose your custome controls.
After selecting the data type go for the Network and select buffering if required else leave it if you are planning to use the variable just for display purpose.
Then you can enable the RT FIFO if required (Not able to explain how it works and why it is used).
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You can bind the variable to a control so that if any data from the RT is coming you can read the data from that control.
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The best solution is the one you find it by yourself

The search for a perfect design pattern

The search for a perfect design pattern
I am searching tip to upgrade a labview program used. I am looking for the best approach to make
my program more robust and scalable.Software and hardware.
Today the system consists of :
GPS, weather station, ultrasound wind sensor, echosounder and a webcamera, all connected to a computer.
The computer OS is XP pro with Labview version 2009 installed. Except for the webcamera all peripherals have serial communication interface.
The webcamera interface is ethernet.
Device                           Data type                 Interval                    Interface
GPS                                NMEA string                1 second                   Serial rs232
Ultrasound wind sensor   NMEA string                1 second                   Serial rs232
Weather, temp,humid     NMEA string               35 seconds                 Serial rs232
Echosounder                  NMEA string               500ms-5 seconds       Serial rs232
                                                                      (depending of depth)
Webcamera                    Jpg                           Snapshot on demand Ethernet
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All the data have to be displayed in real time.
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Absolute wind speed and direction have to be calculated.
Option to send navigation data attached to email at desired time intervals.
Image snapshot at desired time intervals.
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The perfect design pattern
In version one of the software I use 4 parallel loops to read data at the serial ports, inside these loops the data was separated and outputted to a datasocket server. I used datasocked read in other loops to present and store data. But it did not look good, and yes it was a mess, a really rat nest. I am looking for a better design pattern.
Could some kind of producer/ consumer pattern be the way to go?
Comments and tips are wanted.
TIK

Nice Project! Congratulations ;-)
I am not an expert for large applications. But your project looks nice and manageable. Here my straightforward ideas:
I would build a GUI, with menu bar, pop-up graph display thing.
THen low level tasks with each one handling a RS232 device and feeding queues or fireing notifications.
Maybe handle the snapshots in an event structure on the GUI blockdiagramm.
When GUI and producer tasks are running, close the gap with a middle layer which captures the data and actualizes GUI by reference. For instance the graph-thing-dialogue triggers a "flush queue" and displays the last 200 entries of the array of data.
I often run into issues when having defined too many userevent structures. I guess i am too stupid for that. Thats why i rather use queues (when i dont want to loose data) or notifiers (data is up-to-date). Nevertheless I like a "stop-all-tasks" user event...traditionally.
My team is actually developing a large application. We are using LabVIEW classes and objects.
So have fun!
Yours
RZM

Designing a smart Swing GUI with design patterns

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