I have a custom checkbox node tree .
The structure is like this .
You can notice that the subtree is drawn from the check box node tree.
And what i need is ,
The sub tree must be drawn under the folder icon and not the check box.
Please guide me on this regard .
You are using a custom TreeCellRenderer? Just indent it, i.e. add padding to the left which has the width of the folder icon. If you are not using a custom TreeCellRenderer: That is the way to go.
Add One as a leaf (like Two and Three). The tree does not make sense otherwise.
Related
Source element not get placed in Target element index, instead getting placed in the Target+1 index position. I tried with dragAndDropElement method in Actions class. need support if any one have solution to this problem.
Please try to use this utility for drag and drop. Let me know if you face any issue.
https://github.com/frostyaxe/Frosty-Selenium-Drag-Drop
I have created a tree using TreeTable and now that I have all the data in I want to remove the tree lines that are displayed on the left side.
As you can see here:
I want the tree to look like this:
I tried using these lines of code to remove them:
treeTable.setShowGrid(false);
treeTable.setShowHorizontalLines(false);
treeTable.setShowVerticalLines(false);
treeTable.setGridColor(Color.WHITE);
Is there some table property I am missing that can be disabled?
You can use TreeTable.setShowTreeLines() method:
We used the same +/- icons used in JTree so it will change based on
different LookAndFeels. You can also define your own icons by calling
CategorizedTable.setExpandedIcon(javax.swing.Icon) and
CategorizedTable.setCollapsedIcon(javax.swing.Icon). The tree lines
can be turn on or off using setShowTreeLines(boolean). The line color
can be set by setTreeLineColor(java.awt.Color). By default, it will
use the JTree's tree line color which is
UIManagerLookup.getColor("Tree.hash").
I have a vertex and it has its name, the label inside the vertex. But I also wan't to add a new label, with extra information, for the same vertex. Is there a way to do it?
If you need only a "static label" you could use a "stencil".
The Stencils.java example program has some multi-label shapes.
If however you want more control on the content you want to show in the label, I could not find any "official" documentation: you might want to look at the examples I've added to a related question.
Here are the direct links to the examples:
An example of a multi-value node in JGraphX using "child nodes"
Here I've created child nodes and "locked" them to a parent/container node, by setting relative coordinates.
An example of a multi-value node in JGraphX using "custom shape"
Here I've created a "custom shape" to access the Graphics2D awt object and be able to draw my shape and labels.
I generated a decision tree based on a set of data, then I converted this data to a xml file, after that I put it into a JTree. This part works fine but now I have to take a new instance(which contains the data received from the user), find it's place in the decision tree and change that node's color. And I can't find a way to do that. I am using weka and the J48 classifier to generate the decision tree. The xml is created in the Luc Sorel style: http://www.lucsorel.com/media/downloads/sample_decision_tree.xml
The first thing I tried was to classify the instance using the algorithm but that gets me only the class where it belongs, and I don't know how to locate it in the JTree.
What should I do? Any ideeas?
Like JTable, JTree uses a flyweight renderer to draw nodes. As the default renderer is a JLabel, you can set the foreground color or make the label opaque and set the background color. This related example changes the icon for emphasis. More examples may be found here.
Addendum: I cannot find … the node that I should color.
When getTreeCellRendererComponent() is called, value is a reference to the node to be rendered, and the tree parameter allows access to the TreeModel as a whole via getModel(). This example shows how to search a tree.
Actually I'm interested to create an inverted JTree in Java in such a way that root exists at top and its child nodes at the next level and so on. As we know in case of simple JTree the child nodes appears expanding on the right side of the parent node but I want to implement inverted JTree in my project where child nodes expands downwards which gives an appearance of "TREE" type of data structure.
As this is very essential for my project so can anyone suggest me the code for the above mentioned problem?
Thanks in advance.
Then JTree is not the correct choice. Perhaps, you should look into Java2D and stuff like that.