Ive don everything using this guide http://www.cordinc.com/blog/2010/01/jbuttons-in-a-jtable.html
So one little problem remains. While when i click on the button event is fired and method is executed. The buttons animation does not work providing no visual feedback.
Im guessing its due to fact that in order to repaint JTable you need to call the models fireTableDataChanged() method.
Table Button Column shows another way to do this.
The example cited is less than satisfactory because TableCellRenderer shows a JButton, but the MouseListener ignores the button's ButtonModel. Implementing TableCellEditor, as shown here, is a the better approach. For animation convenience, you may want to look at the DefaultCellEditor, shown here, with a JComboBox having a single entry.
Related
I have a non editable table, on which I'd like to display a row contextual panel (likely a JPanel). Somewhat like Gmail is doing: when moving the mouse over mail rows there's a simple tool bar showing up on that specific row.
Like in gmail the action of controls I'd like to display won't edit the values, instead they will use the value in the row to perform some offer work.
I have played with the following :
TableCellRenderer, the display mostly works, but it has limitations:
the component is only used for rendering, so one cannot use it to simply add multiple buttons
it requires another column
for the hovering behavior (ie display on row only when the mouse is hovering the row) it requires collaboration with the table's MouseListener
TableCellEditor, my table is not editable so the cell editor is neither called
it also requires a specific column
it also requires collaboration with the table's MouseListener
MouseMotionListener can be used to display a popup for certain coordinates
the popup feels like it's the right component for this
there's quite some code to handle the popup lifecycle (closing it when the mouse move out of the row, don't re-open a popup if there is already one open)
tool tips: as far as I am aware the swing tooltips do not allow to have control components like buttons, etc
I did related question and answer on stack overflow. But they all require to add a column to display and use these swing components.
Given that you have posted no code, this question is a bit broad.
Nevertheless, the way to do it would be to stick a JPanel in a JPopupMenu. You need to create a listener on your GUI to know when and where the JPopupMenu should appear
--- Edit ---
I think you have to add JMenus to a JPopupMenu, and what I suggested about adding a JPanel won't work cleanly. You can either use JPopupMenu, or use a JWindow and put your JPanel in that.
I posted a similar question a year ago, but it was not really well written and I didn't get an answer I could work with. Now I stand in front of the same problem. I got a JPanel (my content pane), where a MouseListener is implemented.
Everywhere I click, I get the exact coordinates of my mouse click. Except my JTextField components. When I click on those, the MouseEvent isn't even triggered. H
ow do I do this, so my mouse clicks on those will also call the mouse event?
Tried: setEnable(false) and setHighlighter(null)
Sorry thought I fixed the X/Y problem.
The X/Y problem simply means you are telling us what your attempted solution is without telling us what your requirement is. We can't suggest a different approach if we don't know what you are trying to do.
I want to open a menu,
Now we know what the requirement is.
The solution is to add the MouseListener to the text field, not the panel. If you have the same popup of the panel and the text field, then you still need to add the listener to both the panel and the text field.
You can do this in one of two ways:
Read the section from the Swing tutorial on Bringing up a Popup Menu for a working example.
Note the above tutorial is a little old, you can also check out the setComonentPopuMenu(...) method of the JComponent class. This approach will create the listener for you.
I want to implement key listener on my puzzle game.
i have done it with action listener but now want to move on with key listener.
My logic for action listener was that:
when a specific button is clicked
it checks if is adjacent button's icon is null
if it is null then their icons will be swapped
Now, how can I do it with key listener?
Thank you.
if( b1==e.getSource()){
if(b2.getIcon()==null){
b2.setIcon(b1.getIcon());
b1.setIcon(null);
}
else if(b5.getIcon()==null){
b5.setIcon(b1.getIcon());
b1.setIcon(null);
}
}
You tell us that you have implemented a KeyListener but it's not working. Without code, all we can do is guess, so here's mine:
KeyListeners require focus to work, and so if your GUI has any components that steal the focus, such as JButtons, all JTextComponents such as JTextArea or JTextField, JComboBoxes, JLists,... then your KeyListener won't work.
One kludge is to force the component with the KeyListener to have the focus and to greedily hold on to the focus. This is not advisable since it will force your program to behave abnormally since most users expect buttons to have and retain focus when pressed, and text components won't work if they're not allowed focus.
Again, often the best solution is to use Key Bindings since these can work without requiring focus and are a cleaner way to capture keystrokes. Please look at the Key Bindings Tutorial and then have a look at my example code for using Key Bindings here and here.
Again for better and more specific help, then please tell us more of the details and show us your pertinent code, preferably as a minimal example program or MCVE.
I'm working on a minesweeper in Java with Swing and I figured it'd be a fast way to get "rid" of a button that was clicked by using
JButton.setEnabled(false); (with a proper icon too, of course).
But do I have to remove all the listeners connected to this button later or is it enough and I can just forget about the said button then?
You have 2 different questions, one in your title, and one in your description.
Is removing actionListener necessary when you disable the button?
As stated in the previous comments, no.
But do I have to remove all the listeners connected to this button later...
Yes, if you have other kinds of listeners. For example, a MouseListener will still fire if the button is disabled. Usually, there is no need for a MouseListener on JButton, but there may be in some corner cases. I'm not sure about the other types of listeners that can be added to a JButton.
Just wanted to clarify.
I have a JPanel (pNums) which contains another JPanel (pGrid). pGrid itself contains a grid (JLabel[][] in a GridLayout) of labels. There is a mouse listener which catches events from pGrid and does fairly important stuff with them (as in, the entire functionality of the program relies on the mouseClicked() event). This works perfectly, exactly the way I wanted it to... until I add tooltips to the labels.
As soon as I call JLabel.setToolTipText("SomeString") the listener stops reacting to events (I have tried most, if not all of the mouse events, none of them seem to be called).
I am sure that it is the tooltips by the way, commenting out the setToolTipText() completely fixes the problem. Of course, since I needed the tooltips, it also causes a whole host of other problems.
I've looked around and while I haven't found anything quite right, I get the impression that I just chose a really bad way to do what I wanted. But I also want to know for sure.
Can I get both the event and the tooltip or should I go back to the drawing board.
I think you might be able to "fix" this issue, with setting delay on tooltip appearance. But once it will appear user will have to click to hide it anyway.
http://docs.oracle.com/javase/7/docs/api/javax/swing/ToolTipManager.html
The reson for this might be, that tooltip itself needs mouse click, to hide.