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POJTree rightclick behaviour like in any Filebrowser
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  1. POJTree rightclick behaviour like in any Filebrowser
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    copied!<p>I am trying to implement a JTree to represent a database! The Root is the database, which can have several relations. Each relation can have attributes and functional dependencies. Each node (database, relation, attribute and fd) has a different rightclick menu. The first step was to implement the popdown menu in the standard way (first leftclick on a node, then rightclick to show popupmenu).</p> <p>Now I want to change it to the standard behaviour of file-explorers. A rightclick selects the node and shows the correct popupmenu.</p> <p>Currently I am able to rightclick and show a popupmenu, but the menu is incorrect. It is the menu of the previous selected node.</p> <p>Here is an examplepicture of the tree:</p> <p><img src="https://i.stack.imgur.com/azJev.png" alt="enter image description here"></p> <p>This here is my class:</p> <pre><code>public class ShowPopupMouseListener extends MouseAdapter { // Refernece: http://goo.gl/plojB private JTree tree; private JPopupMenu dbPopUpMenu; private JPopupMenu relPopUpMenu; private JPopupMenu attrPopUpMenu; private JPopupMenu fdPopUpMenu; private AttrPopupFactory attrPopupFactory; public ShowPopupMouseListener(JTree jTree) { this.tree = jTree; DbPopupFactory dbPopupFactory = new DbPopupFactory(tree); dbPopUpMenu = dbPopupFactory.getDbPopupMenu(); RelPopupFactory relPopupFactory = new RelPopupFactory(tree); relPopUpMenu = relPopupFactory.getRelPopupMenu(); attrPopupFactory = new AttrPopupFactory(tree); attrPopUpMenu = attrPopupFactory.getAttrPopupMenu(); FdPopupFactory fdPopupFactory = new FdPopupFactory(tree); fdPopUpMenu = fdPopupFactory.getFdPopupMenu(); } public void mousePressed(MouseEvent e) { showMenuIfPopupTrigger(e); } public void mouseClicked(MouseEvent e) { showMenuIfPopupTrigger(e); } public void mouseReleased(MouseEvent e) { showMenuIfPopupTrigger(e); } private void showMenuIfPopupTrigger(final MouseEvent e) { if (e.isPopupTrigger()) { setSelectedItemsOnPopupTrigger(e); if (tree.getLastSelectedPathComponent() instanceof DatabaseNode) { addRightClickPopUpMenu(tree, dbPopUpMenu); } else if (tree.getLastSelectedPathComponent() instanceof RelationNode) { addRightClickPopUpMenu(tree, relPopUpMenu); } else if (tree.getLastSelectedPathComponent() instanceof AttributeNode) { attrPopupFactory.updateKeyCheckboxes(); addRightClickPopUpMenu(tree, attrPopUpMenu); } else if (tree.getLastSelectedPathComponent() instanceof FunctionalDependencyNode) { addRightClickPopUpMenu(tree, fdPopUpMenu); } } } private void addRightClickPopUpMenu(Component component, final JPopupMenu popUpMenu) { component.addMouseListener(new MouseAdapter() { public void mousePressed(MouseEvent e) { if (e.isPopupTrigger()) { showPopUpMenu(e); } } public void mouseReleased(MouseEvent e) { if (e.isPopupTrigger()) { showPopUpMenu(e); } } private void showPopUpMenu(MouseEvent e) { popUpMenu.show(e.getComponent(), e.getX(), e.getY()); } }); } private void setSelectedItemsOnPopupTrigger(MouseEvent e) { TreePath p = tree.getPathForLocation(e.getX(), e.getY()); if (!tree.getSelectionModel().isPathSelected(p)) { tree.getSelectionModel().setSelectionPath(p); } } } </code></pre> <p>And in my tree I initialize it the following way:</p> <pre><code>UIManager.put("PopupMenu.consumeEventOnClose", Boolean.FALSE); tree.getSelectionModel().setSelectionMode(TreeSelectionModel.DISCONTIGUOUS_TREE_SELECTION); tree.addMouseListener(new ShowPopupMouseListener(tree)); </code></pre> <p>Any suggestions why this is not working?</p>
 

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