JSpinner problem
I've searched google and looked everywhere in the API and tutorial before posting here. I don't see what the problem is. I added a JSpinner to my interface, when I add the changelistener it doesn't update. Like the numbers in the spinner don't change when i click the arrows. They work fine without the changelistener, but with it they don't work. The weird thing is that in the stateChanged function I put some debug code, and the values are changing, but not visibly in the spinner.
here is my declaration:
CurrentRecopy = new JSpinner(new SpinnerNumberModel(0, 0, 9, 1));
CurrentRecopy.addChangeListener(this);here is my stateChanged code:
public void stateChanged(ChangeEvent e) {
SaveItems();
public void SaveItems(){
int NumRecopy = CurrentRecopy.getNumber().intValue();
if(debug) display.append(NumRecopy + " ");
int NumTime = current_time.getNumber().intValue();
int NumOfEffects = no_of_times.getNumber().intValue();
if(debug) display.append(NumTime + " ");
//CurrentRecopy.setValue(NumTime);
data[NumRecopy].NumberOfEffects = NumOfEffects;
data[NumRecopy].TimeMultipliersMain[((NumTime*2)-2)] = Integer.parseInt(Time_a_input.getText());
data[NumRecopy].TimeMultipliersMain[((NumTime*2)-1)] = Integer.parseInt(Time_b_input.getText());
data[NumRecopy].TimeAccMain[(NumTime-1)] = Integer.parseInt(MainAcc.getText());
data[NumRecopy].TimedEffectMain[(NumTime-1)] = EnterMainEffect.getText();
data[NumRecopy].AlternateEffects = Alt_active_box.isSelected();
data[NumRecopy].NumberOfAlternateEffects = total_alt_time.getNumber().intValue();
data[NumRecopy].TimeMultipliersAlt[((NumTime*2)-2)] = Integer.parseInt(Alt_a_input.getText());
data[NumRecopy].TimeMultipliersAlt[((NumTime*2)-1)] = Integer.parseInt(Alt_b_input.getText());
data[NumRecopy].TimeAccAlt[(NumTime-1)] = Integer.parseInt(AltAcc.getText());
data[NumRecopy].TimedEffectAlt[(NumTime-1)] = EnterAltEffect.getText();
data[NumRecopy].Trailing = TrailingBox.isSelected();
data[NumRecopy].TrailingTime = Integer.parseInt(TrailingTime.getText());
data[NumRecopy].TrailingAcc = Integer.parseInt(TrailingAcc.getText());
data[NumRecopy].TrailingEffect = TrailingEffect.getText();
data[NumRecopy].Leading = LeadBox.isSelected();
data[NumRecopy].LeadingTime = Integer.parseInt(LeadTime.getText());
data[NumRecopy].LeadingAcc = Integer.parseInt(LeadAcc.getText());
data[NumRecopy].LeadingEffect = LeadEffect.getText();
}If you think it'd help I could post the entire program here. I'm using JDK 5. I'm not sure if that effects it or not.
Thanks.
public void SaveItems()
if(checkFields())
int NumRecopy = CurrentRecopy.getNumber().intValue();
if(debug) display.append(NumRecopy + " ");
int NumTime = current_time.getNumber().intValue();
int NumOfEffects = no_of_times.getNumber().intValue();
if(debug) display.append(NumTime + " ");
...all of saveItems() code wrapped up in the if()
else //error message, incomplete data
public boolean checkFields()
if(textField1.getText().equals("")) return false;
if(textField2.getText().equals("")) return false;
...all the way to
if(textField10.getText().equals("")) return false;
return true;
}but this will only check for empty fields - you are doing Integer.parseInt(), so will
probably have the same problem if non-parseable characters are entered.
it might be easier to use JFormattedTextFields, with a default value already inserted
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I managed to solve the second question on my own.
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I experience problems with the alignment of the text within the spinner. I read a few topics on this forum. Many answers point to the solution of grabbing the JFormattedTextField from the spinner and call the setHorizontalAlignment(int) method. Seems hat doesn't work for me.
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{"", "0"},
{"", "0"},
{"", "0"},
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@Override
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frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
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super();
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setValueRange(MyTable.SMALL);
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System.out.println ("SpinnerEditor.stateChanged(): " + value);
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@Override
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spinValues = new String[ARRAY_SIZE];
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One solution is to create two editors, then you override the getCellEditor(...) method to return the appropriated editor. Something like:
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return the small or large spinner editor
else
return the large spinner editor
else
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Please help with JSpinner problem
The only way that I know of to get access to the fireStateChanged()
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I don't understand what can go wrong because it just a simple
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Hello,
I have an application which let you insert data of a music album. All this data goes into a database. One of the possible fields is the length of the album.
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ThxIf you need further help then you need to create a [Short, Self Contained, Compilable and Executable, Example Program (SSCCE)|http://homepage1.nifty.com/algafield/sscce.html], that demonstrates the incorrect behaviour.
Don't forget to use the Code Formatting Tags so the posted code retains its original formatting. That is done by selecting the code and then clicking on the "Code" button above the question input area. -
Hi,
I am trying to create timefield using JSpinner similar to TimeField in
Date/Time Properties dialog in Microsoft Windows. Here is the code i have
written
import javax.swing.*;
import javax.swing.event.*;
import java.text.*;
import java.awt.*;
import java.util.*;
import java.awt.event.*;
import javax.swing.text.*;
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JFormattedTextField tf;
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JFrame frame = new JFrame("Spinner");
frame.setDefaultCloseOperation(3);
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tf =((JSpinner.DateEditor)spinner.getEditor()).getTextField();
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tf.setBackground(Color.white);
tf.setSelectionColor(Color.blue);
tf.setSelectedTextColor(Color.white);
DefaultFormatterFactory factory
=(DefaultFormatterFactory)tf.getFormatterFactory();
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frame.pack();
frame.show();
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It works just fine when i use up/down keys or spinner at the right to change
the time. But when i try to
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I want it such that Timefield should allow user to change the time using
Spinner as well as by editing the
timefield. But it should not allow the user to enter invalid time.
Please give me your suggestions. Am I missing something here?
Thanks in advance.
AbhijeetHi J�rg,
Thanks for your reply.
I wrote a standalone version simulating the problem I have and -- guess what -- it worked fine.
The only feasible difference between the two programs is that for the demo program I coded the layout and placement of the components myself, whereas with the problem code, I used IntelliJ's GUI builder, which uses its own layout manager. This must have something to do with the problem.
However, I have managed to botch a fix -- first I set the JSpinners' values to 0, THEN set them to the random numbers. Weird, but works.
Thanks again, though.
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Hey guys, I'm new to the JAVA programming world and i have a little problem...
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http://forum.java.sun.com/thread.jspa?threadID=5200948 -
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Any help would be greatly appreciated.
// CODE STARTS HERE ////////////////////////////////
import javax.swing.*;
import java.util.*;
import java.awt.*;
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this.setPreferredSize(fixedDimension);The problem is in the format. The format supplied by the standard API does exactly what you described. The alternative is to create your own format or (better) your own formatter.
I ended up creating my own DateSpinner which is not too difficult.
Cheers,
Didier -
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Hello,
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Is there any way to prevent from the problem.Just want to know is ther any way that, when i change the maximum value from The jlist, it does not invoke method stateChange().
thank'x in Advance.I use the setEnabled(boolean) method to achive this. Assume we have a JSpinner js, I need three lines of code js.setEnabled(false); //switch off firing of events
js.getModel().setValue(new Integer(whatever));
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I ended up creating my own DateSpinner which is not too difficult.
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Problems with JSpinner in Linux
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I'm using six JSpinners in an application I am developing but I am experiencing some problems with them. I have a JButton which, when pressed, changes the values in each of the JSpinners to a random integer.
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I know that the numbers are randomly generated correctly, as I have checked this, so the number being passed to setValue(Object value) is definitely a new value.
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Regards.Hi J�rg,
Thanks for your reply.
I wrote a standalone version simulating the problem I have and -- guess what -- it worked fine.
The only feasible difference between the two programs is that for the demo program I coded the layout and placement of the components myself, whereas with the problem code, I used IntelliJ's GUI builder, which uses its own layout manager. This must have something to do with the problem.
However, I have managed to botch a fix -- first I set the JSpinners' values to 0, THEN set them to the random numbers. Weird, but works.
Thanks again, though.
Regards. -
JSpinner & FocusListener Problem
Hey all....
Im trying to add a focusListener to a JSpinner so that when the spinner looses focus it saves its value in a database...
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thanksok heres the code
public class CaddyTimeField extends JSpinner implements CaddyWidget
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private int dataType;
private String propertyName;
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super();
init();
public CaddyTimeField(String propertyName)
super();
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JSpinner.DateEditor editor = new JSpinner.DateEditor(this, "HH:mm");
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this.setValue(obj);
catch(NoSuchMethodException mex){Trace.traceError(mex);}
catch(IllegalAccessException aex){Trace.traceError(aex);}
catch(InvocationTargetException itex){Trace.traceError(itex);}
catch(Exception ex){Trace.traceError(ex);}
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try
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Class c = bean.getClass();
java.lang.reflect.Method meth = null;
Class[] args = { Class.forName("java.sql.Time") };
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Object[] args2 = { time };
Object obj = meth.invoke(bean, args2);
catch(ClassNotFoundException cex){Trace.traceError(cex);}
catch(NoSuchMethodException mex){Trace.traceError(mex);}
catch(IllegalAccessException aex){Trace.traceError(aex);}
catch(java.lang.reflect.InvocationTargetException itex) {Trace.traceError(itex);}
catch(Exception ex){Trace.traceError(ex);}
public void setBean(DataBean bean)
this.bean = bean;
if(bean != null)
getBeanValue();
public void setParent(CaddyPanel parent)
this.parent = parent;
public void setDirty(boolean isDirty)
this.isDirty = isDirty;
if(parent != null)
parent.setDirty(true);
} -
Hi guys,
I am trying to create a JSpinner with the following format HH:MM but it is not working. The spinner keeps displaying both the date and the time. Can somebody tell me what's wrong with my code? I would really appreciate it ...
import java.awt.*;
import java.text.*;
import java.util.*;
import javax.swing.*;
import javax.swing.text.*;
public class Test {
public static void main(String[] args) {
Frame f = new Frame();
f.setLayout(new BorderLayout());
f.add(new TimeSpinner(), BorderLayout.WEST);
f.add(new TimeSpinner(), BorderLayout.EAST);
f.setVisible(true);
f.pack();
class TimeSpinner extends JSpinner {
public TimeSpinner() {
super();
// spinner date model
SpinnerDateModel sdm = new SpinnerDateModel();
sdm.setCalendarField(Calendar.MINUTE);
this.setModel(sdm);
try {
this.commitEdit();
} catch (Exception e) {
e.printStackTrace();
JSpinner.DateEditor de = (JSpinner.DateEditor)this.getEditor();
de.getFormat().applyPattern("hh:mm a");Hey you were close, try this:
import java.awt.*;
import java.text.*;
import java.util.*;
import javax.swing.*;
import javax.swing.text.*;
public class Test{
public static void main(String[] args) {
Frame f = new Frame();
f.setLayout(new BorderLayout());
f.add(new TimeSpinner(), BorderLayout.WEST);
f.add(new TimeSpinner(), BorderLayout.EAST);
f.setVisible(true);
f.pack();
class TimeSpinner extends JSpinner {
public TimeSpinner() {
super();
// spinner date model
SpinnerDateModel sdm = new SpinnerDateModel();
sdm.setCalendarField(Calendar.MINUTE);
this.setModel(sdm);
try {
this.commitEdit();
} catch (Exception e) {
e.printStackTrace();
JSpinner.DateEditor editor = new JSpinner.DateEditor(
this, "hh:mm a");
this.setEditor(editor);
} -
Hi all. I've run into some design problems when trying to create a Swing app.
I've got a non-graphical class that emulates a power supply unit. Let's call it PSUnit. I have to create a GUI for PSUnit.
Every class designed to build a full GUI app uses PSUnit in some way (changes its voltage, displays voltage, turns it on, turns it off, etc.)
Here's the catch. Suppose I've got a class:
public class BuildingBlock extends JPanel {
// code includes a JTextBox displaying
// the current PSUnit voltage.
}another class is created for setting the voltage:
public class AnotherBlock extends JPanel {
// this class contains a JSpinner and
// a button that retrieves the JSpinner value
// and sets it as the current voltage of
// PSUnit
}When the button in AnotherBlock is clicked, I must notify the BuildingBlock class that a PSUnit has changed its state so it can update it's values and display the correct data.
I've tried to do this a few times but failed miserably, so I'm hoping you guys could help me out.
Please note that both of the above classes have some additional code and it's not very pleasant to make one class an inner class of another. I should be able to create a "standalone" classes which, combined together, form a GUI for PSUnit.
Thanks.Yes this is a common problem that many of us have when building UIs
Here's the question: In this instance, are these two classes really independant? Could they stand alone? Often when building a GUI, it's not even that easy to answer that question, but these leads to the two ways you can solve this
#1. Make them independent, and use listeners either using Observable / Observer or creating your own custom listeners. The advantage of this is smaller classes and more independence. The disadvantage is it's generally more complicated, especially at the design stage
#2 (what I'd probably recommend). Make 1 GUI class "MyPSFrame", then declare your panel classes as inner classes within that class. This way, everything goes into one spot, and everything is shareable. This also makes sense if you can't have 1 of the panels without the other.
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