jcheckbox

Java GUI Swing Jlist with three Components

两盒软妹~` 提交于 2019-12-06 10:59:15
I need to create a Java Swing JList with three Components. Each JList row should have one JCheckBox, one ImageIcon and one JLabel. The problem is that JLabel could have only two elements. So i need a methode to add a JCheckBox... Jlist with three components:- Without any real information, the best I can suggest is start by having a look at Concepts: Editors and Renderers and Writing a Custom Cell Renderer for how cell renders work. Based on you basic requirements, you need to start with a container class of some sort and add your components to it, you then need to populate the values of the

How do I add an empty row to JTable?

谁都会走 提交于 2019-12-06 09:05:30
问题 is there any way to an add empty row to jtable, where the first column is boolean, so it won't display the auto-generated checkbox? I need it to separate groups of rows. I tried using the code below, but it is NOT working: model.addRow(new Object[]{null,null,null,null}); 回答1: I want make some rows completely empty so they work as separators. But in rest I would like to keep checkboxes Instead of storing Boolean.TRUE or Boolean.FALSE in the model you would need to store null. Then you have two

Trouble with JCheckBox checked toggle logic in a JList in Java

我怕爱的太早我们不能终老 提交于 2019-12-05 19:01:42
Hi I am having trouble with toggling a check box that is in a JList, I wish for when an item is clicked to have the check box tick, and if it is ticked again i want it to toggle to unticked. I want to have it possible to have multiple items to be ticked or unticked without the use of the ctrl or shift keys. public class CustCellRenderer extends JCheckBox implements ListCellRenderer { boolean selected = false; void CustCellRenderer() { setOpaque(true); setIconTextGap(12); } // allows a custom list cell rendering which will enable me to display an icon as well as filename @Override public

Dynamically create jCheckBox and add to a jScrollPane

爱⌒轻易说出口 提交于 2019-12-05 08:06:47
EDIT: Using the solutions presented below, I have changed the code to have a JPanel inside a JScrollPane. Using a JButton i add JCheckBoxes to the JPanel inside the JScrollPane. This was one problem solved, as the a JScrollPanecan only take one JComponent. The rest of the issues were solved setting a gridlayout to the JPanel inside JScrollPane. I have kept my original question here for the sake of posterity: ORIGINAL QUESTION: I'm trying to dynamically create JCheckBox and add them to a JScrollPane, but alas i am achieving little success. I have reduced this to a single proof-of-concept

JTree rendering with JCheckBox nodes

旧街凉风 提交于 2019-12-05 00:50:07
I am attempting to modify the standard Swing JTree to intermingle nodes with and without checkboxes. This is an example: When I attempt to check/uncheck one of the checkboxes (the 'User 01' node in this example), the tree loses nodes: I my code is an adaptation of this example: http://forums.sun.com/thread.jspa?threadID=5321084&start=13 . Instead of embedding a JCheckBox in a DefaultMutableTreeNode like this: new DefaultMutableTreeNode(new CheckBoxNode("Accessibility", true)); I thought it made more sense to create a model node that derived from the DefaultMutableTreeNode, which I call

How do I add an empty row to JTable?

我是研究僧i 提交于 2019-12-04 14:49:39
is there any way to an add empty row to jtable, where the first column is boolean, so it won't display the auto-generated checkbox? I need it to separate groups of rows. I tried using the code below, but it is NOT working: model.addRow(new Object[]{null,null,null,null}); I want make some rows completely empty so they work as separators. But in rest I would like to keep checkboxes Instead of storing Boolean.TRUE or Boolean.FALSE in the model you would need to store null. Then you have two options: Create a custom renderer that displays the Boolean values normally and recognizes the null value

is there a way to change jcheckbox to use a cross instead of a tick? JAVA

瘦欲@ 提交于 2019-12-04 07:01:27
问题 I have a Jcheckbox but it only has the tick to show its checked, is there a way i can change it to a cross, or circle? and is there a way to change the grey background to white the setBackground doesn't seem to make a difference? 回答1: User setPressedIcon, setIcon and setDisabledIcon JCheckBox b = new JCheckBox(); b.setPressedIcon(pressedIcon) b.setIcon(defaultIcon); b.setDisabledIcon(disabledIcon) 来源: https://stackoverflow.com/questions/4365069/is-there-a-way-to-change-jcheckbox-to-use-a

Change the location of the accessory component in a filechooser

こ雲淡風輕ζ 提交于 2019-12-03 18:05:37
问题 I have a problem in changing the location of the accessory component in a filechooser. I customized a save file dialog by putting a check box in the accessory component of the file chooser. But the position of the check box is not good, it is really ugly. Can I move the accessory component to be underneath the file pane? How to do it? Or if you have other solution to do the same thing, also welcome. Thank you guys. I using following code to add the check box: JFileChooser fc = new

How to prevent JPopUpMenu disappearing when checking checkboxes in it?

一曲冷凌霜 提交于 2019-12-03 03:43:31
I want to use JCheckBoxMenuItem s in a JPopupMenu . It works, but the problem is that the popup menu disappears when a checkbox item has been checked or unchecked. So if one wants to check/uncheck several items, the popup needs to be launched repeatedly, which is irritating. Curiously, if I use just plain JCheckBox items in the menu (instead of JCheckBoxMenuItem s), the behavior is just as it should be: the popup stays there and the checkboxes can be checked/unchecked. Once done, the popup can be closed just by clicking outside it. How do I make the popup to behave like that when the items

Checkbox in only one JTable Cell

强颜欢笑 提交于 2019-12-02 20:23:07
问题 I want to create an JTable with 2 columns, which looks like a survey. So on the left are the questions and on the right the user can give his answers. But in one line there should be a Checkbox on the right side, so that the user only can answer with yes or no. Is this possible to do with an JTable , and how can I achieve this? regards 回答1: You have stated in a comment: I tried it with a column of JCheckboxes it works but I just want it in one cell Note this requirement is a little tricky. I