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import javax.swing.tree.*; static <A, B extends Cl<A>> JTree jDynamicTree(A root, IF1<A, B> makeChildren, O... _) { ret jDynamicTree(root, toF1(makeChildren), _); } static <A, B extends Cl<A>> JTree jDynamicTree(final A root, final F1<A, B> makeChildren, fO... _) { ret swing(func -> JTree { optPar IF1<A, O> valueToText; DefaultMutableTreeNode rootNode = new(root); rootNode.add(new DefaultMutableTreeNode(jDynamicTree_dummy())); final JTree tree = new JTree(rootNode) { public S convertValueToText(O value, bool selected, bool expanded, bool leaf, int row, bool hasFocus) { if (valueToText != null) { O userObject = ((DefaultMutableTreeNode) value).getUserObject(); pcall { ret str(valueToText.get((A) userObject)); } } ret super.convertValueToText(value, selected, expanded, leaf, row, hasFocus); } }; tree.setShowsRootHandles(true); tree.collapseRow(0); final bool keepChildrenOnCollapse = optParam(_, 'keepChildrenOnCollapse, false); bool makeChildrenIsFast = boolParam makeChildrenIsFast(_) || makeChildren == null; bool debug = boolPar debug(_); class jDynamicTree_Listener implements TreeWillExpandListener { public void treeWillCollapse(TreeExpansionEvent e) {} public void treeWillExpand(TreeExpansionEvent e) { pcall { if (debug) print("treeWillExpand"); DefaultMutableTreeNode node = cast e.getPath().getLastPathComponent(); if (!keepChildrenOnCollapse || jDynamicTree_isInDummyState(node)) { L<A> l = asList(callF(makeChildren, (A) node.getUserObject())); if (makeChildrenIsFast ? replaceTreeNodeChildren_withDummyChild2(node, l, jDynamicTree_dummy(), makeChildren) : replaceTreeNodeChildren_withDummyChild(node, l, jDynamicTree_dummy())) ((DefaultTreeModel) tree.getModel()).nodeStructureChanged(node); } }} } tree.addTreeWillExpandListener(new jDynamicTree_Listener); ret tree; }); }
Began life as a copy of #1008652
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Snippet ID: | #1016044 |
Snippet name: | jDynamicTree - JTree with children made on demand, simpler functions |
Eternal ID of this version: | #1016044/31 |
Text MD5: | bcb90d81329eaec36aec63208f66de32 |
Transpilation MD5: | 4da20ae5df146798c3545b71c1edc3d4 |
Author: | stefan |
Category: | javax / gui |
Type: | JavaX fragment (include) |
Public (visible to everyone): | Yes |
Archived (hidden from active list): | No |
Created/modified: | 2020-05-23 22:31:39 |
Source code size: | 2078 bytes / 45 lines |
Pitched / IR pitched: | No / No |
Views / Downloads: | 590 / 775 |
Version history: | 30 change(s) |
Referenced in: | #1006654 - Standard functions list 2 (LIVE, continuation of #761) #1019098 - jDynamicTreeFromTree #1021591 - jDynamicTree_concurrent - calculates children in background queue [dev.] #1025669 - jDynamicTree with node wrapping [dev.] |