I need to write an editor with two Trees, where user can map nodes from one tree to another. The biggest challenge is to draw connection line between TreeItems.
Are there any samples that I can use?
There is the link for JDeveloper XSD Mapper tree view
https://technology.amis.nl/wp-content/uploads/images/xsdMapper.jpg
There is a related question here.
There is also the Nebula TreeMapper. Looks like this:
Related
I am trying to print a prefix tree, I already modeled the trie class, I need to print the prefix tree something like:
enter image description here
But I can't figure out how to create it in a perfect way, I'm using the iTextPdf library, but I've only made the Root node, but when trying to create the next one I can't center the text, divide the page or something similar, I wanted to know if any of them have a best solution or have any idea to do it. Thank you
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").
So. The ideas have been a few.. no good ones.. So here is the problem i have incountered and can not figure out a solution for.
I need to have a txt file containing a hierarchical list of things to do, looking something like this:
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Hold your thumbs that this might save your day.
The txt file should in the program fill a list shown in a JPanel and after each step have a checkbox to comfirm "I have been a good boy and done this".
The list can change over time and grow and shrink, so the solution needs a scrollbar.
The list should also contaion a capability to show more the one row.
The solution im working on is done in Jave compiler 1.6 and im using Swing for my layout.
Ideas i have had so far are:
Modified JTable... and the other solutions i am asshamed of..
And thats about it.. ..
JTree with custom renderer. The renderer should be a panle with checkbox and text area.
have look at JTree
have to override JTree Renderer and Editor (comcept is similair for JTable and JTree)
all data are stored in the DefaultTreeModel
examples about Tree Model,Tree Renderer Editor, Tree and here
Also consider org.netbeans.swing.outline.Outline, discussed here and illustrated below. It's not apparent in the screenshot, but the the Outline instance has been added to a JScrollPane.
I would say JTreeTable is a right choice. It will provide a lot of power and flexibility. Please see some very basic examples:
http://www.ibm.com/developerworks/java/library/j-5things14/index.html
http://www.java2s.com/Code/Java/Swing-Components/JTreeTablecomponent.htm
For any serious purpose please use a mature implementation provided, for example, by a SwingLab project:
http://swingx.java.net/
http://java.net/projects/swinglabs
Please also see the following answer:
Java Swing table tree
I'm currently learning the adf framework, and while doing this I found myself in a situation I am not able to solve.
I have a tree component that works fine. I also have different forms, corresponding to different levels of the tree. Rather than having all of the forms visible at one time, I would like to only show the one that corresponds to the selected item in the tree.
To solve this, I created af:switcher, created facets and moved the forms there. Here is where I am lost, how do I tell the switcher to change the form? I tried to link them together using the facetName on the switcher, but no success. I suspect I did not link the right thing there, but I could not find anything helpful from the tree either! I assume it has something to do with the selectionListener and a bean, but I could not figure out a way to do this. Any clues?
See Sample #50 of http://www.oracle.com/technetwork/developer-tools/adf/learnmore/index-101235.html#CodeCornerSamples
Frank
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.