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Questions tagged [jtree]

Java Swing component that displays a set of hierarchical data as an outline.

JTree is a class in the javax.swing package. It is a Swing component that displays a set of hierarchical data as a tree outline. Like most Swing components, it has a model, is highly configurable through the use of renderers, and fires events that can be handled.

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How to programmatically fire a MouseEvent to a MouseListener with Java?

I have a JTree with a custom associated MouseListener (for showing popup etc.). I need to fire a MouseEvent that will be caught by the MouseListener. How should I do that programmatically?
michelemarcon
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JTree make only leaves draggable

I need to make only leaves of a JTree draggable but the following code snippets makes every node in the tree draggable: tree.setDragEnabled(true); How can I restrict the draggable element to specific informationen of a tree node like the property…
jaster
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Deselect node from JTree when click any place outside the tree

I am using a JTree, which is using a DefaultTreeModel. This tree model has some nodes inside, and when I click on a node, I get the information of the node and I change the background color to show that this node is selected. It is possible to call…
daniel lozano
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JTree Line Style and Nimbus

I am using the Nimbus look and feel. According to this link, you should be able to achieve 3 different line styles with your JTree: While using the following code: theTree.putClientProperty("JTree.lineStyle", "Horizontal"); My JTree looks like…
user489041
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JTree select item on right click

I know how to get item from selected item my left mouse button click. I can use TreeSelectionListener. tree.addTreeSelectionListener(new TreeSelectionListener(){ @Override public void valueChanged(TreeSelectionEvent tse) { …
SpeedEX505
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JTree node labels change often but width is cached

Currently, I'm using a custom TreeCellRenderer to handle label and icon changes for my JTree. The problem comes when I need to change the text on a few nodes. The TreeCellRenderer works great in that the new text is displayed. However, the width…
initialZero
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Change JTree row height resizing behavior when rendering

I want to use a custom TreeCellRenderer containing three text fields only when a node is SELECTED, while use the default renderer when the node is NOT SELECTED. The problem is that although I've set an appropriate preferred and minimum size for the…
acrobat.of.thinking
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Traversing all nodes of a multi-leveled JTree

I have a JTree with DefaultTreeModel. I need to get to each node of it. Imagine I have this tree: [A] |-[B] |-[C] |-[D] | |-[E] | |-[F] | |-[G] | |-[H] |-[I] |-[J] |-[K] I need to traverse it and print out: ---[A]--- …
cbt
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Adding vertical padding/space between rows in a JTree?

Is it possible to add some blank space between node rows in a JTree? I am using custom images for the node icons and I guess the images are larger than the standard node icons, so the node icons sit very close together. It would look nicer if there…
XåpplI'-I0llwlg'I -
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How to get depth of current node in JTree?

I have a JTree with a few nodes and subnodes. When I click on a node I want to know on which depth is it (0, 1, 3). How can I know that? selected_node.getDepth(); doesn't return the depth of current node..
c0dehunter
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Expand Collapse Expand Issue with JTree Lazy loading

I have implemented a tree using Lazy Loading. The 1st level nodes are created at the time of tree creation, where as the child nodes are created only when a user expands any particular node. The data is coming from DB, and we fire a query to the…
newbie
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Restore Expansion/Selection State in JTree with Lazy Loading

I have an application which contains a JTree backed with a DefaultTreeModel that is used to display a hierarchy of files which reflects a section of the file system on my server (I will refer to this as my client app). I also have a server…
Jeremy
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easy and fast JTree Cell Editor

I have a JTree with a custom TreeModel and a custom TreeRenderer. The Tree Model contains a bunch of objects of different types. One of these types is displayed differently than the others: The displayed text is a concatenation of two fields of the…
Simiil
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Dynamically resize JTextField in JTree Node

I am using a JPanel with some JLabels and JTextFields as editor and renderer in a JTree. The user can click on any JTextField and modify the text. All works fine. All I am missing is how I can dynamically resize (grow) the JTextField as the user is…
Torsten Römer
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How do I implement intelligent drag and drop from one JTree to another?

I have two JTrees with some mock data in there, what I'm looking to do is to be able to take each 'Job' (15663-1, 15663-2, etc) and make a node for each, with a node for each part underneath it and the components attached to each part underneath…
davidahines
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