Examples with RecursiveTreeItem org.jabref.gui.util.RecursiveTreeItem used on opensource projects

Example 1 with RecursiveTreeItem

use of org.jabref.gui.util.RecursiveTreeItem in project jabref by JabRef.

the class GroupTreeController method initialize.

@FXML
public void initialize() {
    viewModel = new GroupTreeViewModel(stateManager, dialogService, taskExecutor);
    // Set-up groups tree
    groupTree.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
    // Set-up bindings
    Consumer<ObservableList<GroupNodeViewModel>> updateSelectedGroups = (newSelectedGroups) -> newSelectedGroups.forEach(this::selectNode);
    Consumer<List<TreeItem<GroupNodeViewModel>>> updateViewModel = (newSelectedGroups) -> {
        if (newSelectedGroups == null) {
            viewModel.selectedGroupsProperty().clear();
        } else {
            viewModel.selectedGroupsProperty().setAll(newSelectedGroups.stream().map(TreeItem::getValue).collect(Collectors.toList()));
        }
    };
    BindingsHelper.bindContentBidirectional(groupTree.getSelectionModel().getSelectedItems(), viewModel.selectedGroupsProperty(), updateSelectedGroups, updateViewModel);
    viewModel.filterTextProperty().bind(searchField.textProperty());
    groupTree.rootProperty().bind(EasyBind.map(viewModel.rootGroupProperty(), group -> new RecursiveTreeItem<>(group, GroupNodeViewModel::getChildren, GroupNodeViewModel::expandedProperty, viewModel.filterPredicateProperty())));
    // Icon and group name
    mainColumn.setCellValueFactory(cellData -> cellData.getValue().valueProperty());
    mainColumn.setCellFactory(new ViewModelTreeTableCellFactory<GroupNodeViewModel, GroupNodeViewModel>().withText(GroupNodeViewModel::getDisplayName).withIcon(GroupNodeViewModel::getIconCode, GroupNodeViewModel::getColor).withTooltip(GroupNodeViewModel::getDescription));
    // Number of hits
    PseudoClass anySelected = PseudoClass.getPseudoClass("any-selected");
    PseudoClass allSelected = PseudoClass.getPseudoClass("all-selected");
    numberColumn.setCellFactory(new ViewModelTreeTableCellFactory<GroupNodeViewModel, GroupNodeViewModel>().withGraphic(group -> {
        final StackPane node = new StackPane();
        node.getStyleClass().setAll("hits");
        if (!group.isRoot()) {
            BindingsHelper.includePseudoClassWhen(node, anySelected, group.anySelectedEntriesMatchedProperty());
            BindingsHelper.includePseudoClassWhen(node, allSelected, group.allSelectedEntriesMatchedProperty());
        }
        Text text = new Text();
        text.textProperty().bind(group.getHits().asString());
        text.getStyleClass().setAll("text");
        node.getChildren().add(text);
        node.setMaxWidth(Control.USE_PREF_SIZE);
        return node;
    }));
    // Arrow indicating expanded status
    disclosureNodeColumn.setCellValueFactory(cellData -> cellData.getValue().valueProperty());
    disclosureNodeColumn.setCellFactory(new ViewModelTreeTableCellFactory<GroupNodeViewModel, GroupNodeViewModel>().withGraphic(viewModel -> {
        final StackPane disclosureNode = new StackPane();
        disclosureNode.visibleProperty().bind(viewModel.hasChildrenProperty());
        disclosureNode.getStyleClass().setAll("tree-disclosure-node");
        final StackPane disclosureNodeArrow = new StackPane();
        disclosureNodeArrow.getStyleClass().setAll("arrow");
        disclosureNode.getChildren().add(disclosureNodeArrow);
        return disclosureNode;
    }).withOnMouseClickedEvent(group -> event -> group.toggleExpansion()));
    // Set pseudo-classes to indicate if row is root or sub-item ( > 1 deep)
    PseudoClass rootPseudoClass = PseudoClass.getPseudoClass("root");
    PseudoClass subElementPseudoClass = PseudoClass.getPseudoClass("sub");
    // Pseudo-classes for drag and drop
    PseudoClass dragOverBottom = PseudoClass.getPseudoClass("dragOver-bottom");
    PseudoClass dragOverCenter = PseudoClass.getPseudoClass("dragOver-center");
    PseudoClass dragOverTop = PseudoClass.getPseudoClass("dragOver-top");
    groupTree.setRowFactory(treeTable -> {
        TreeTableRow<GroupNodeViewModel> row = new TreeTableRow<>();
        row.treeItemProperty().addListener((ov, oldTreeItem, newTreeItem) -> {
            boolean isRoot = newTreeItem == treeTable.getRoot();
            row.pseudoClassStateChanged(rootPseudoClass, isRoot);
            boolean isFirstLevel = (newTreeItem != null) && (newTreeItem.getParent() == treeTable.getRoot());
            row.pseudoClassStateChanged(subElementPseudoClass, !isRoot && !isFirstLevel);
        });
        row.setDisclosureNode(null);
        row.disclosureNodeProperty().addListener((observable, oldValue, newValue) -> row.setDisclosureNode(null));
        row.contextMenuProperty().bind(EasyBind.monadic(row.itemProperty()).map(this::createContextMenuForGroup).orElse((ContextMenu) null));
        row.setOnDragDetected(event -> {
            TreeItem<GroupNodeViewModel> selectedItem = treeTable.getSelectionModel().getSelectedItem();
            if ((selectedItem != null) && (selectedItem.getValue() != null)) {
                Dragboard dragboard = treeTable.startDragAndDrop(TransferMode.MOVE);
                dragboard.setDragView(row.snapshot(null, null));
                ClipboardContent content = new ClipboardContent();
                content.put(DragAndDropDataFormats.GROUP, selectedItem.getValue().getPath());
                dragboard.setContent(content);
                event.consume();
            }
        });
        row.setOnDragOver(event -> {
            Dragboard dragboard = event.getDragboard();
            if ((event.getGestureSource() != row) && row.getItem().acceptableDrop(dragboard)) {
                event.acceptTransferModes(TransferMode.MOVE, TransferMode.LINK);
                removePseudoClasses(row, dragOverBottom, dragOverCenter, dragOverTop);
                switch(getDroppingMouseLocation(row, event)) {
                    case BOTTOM:
                        row.pseudoClassStateChanged(dragOverBottom, true);
                        break;
                    case CENTER:
                        row.pseudoClassStateChanged(dragOverCenter, true);
                        break;
                    case TOP:
                        row.pseudoClassStateChanged(dragOverTop, true);
                        break;
                }
            }
            event.consume();
        });
        row.setOnDragExited(event -> {
            removePseudoClasses(row, dragOverBottom, dragOverCenter, dragOverTop);
        });
        row.setOnDragDropped(event -> {
            Dragboard dragboard = event.getDragboard();
            boolean success = false;
            if (dragboard.hasContent(DragAndDropDataFormats.GROUP)) {
                String pathToSource = (String) dragboard.getContent(DragAndDropDataFormats.GROUP);
                Optional<GroupNodeViewModel> source = viewModel.rootGroupProperty().get().getChildByPath(pathToSource);
                if (source.isPresent()) {
                    source.get().draggedOn(row.getItem(), getDroppingMouseLocation(row, event));
                    success = true;
                }
            }
            if (dragboard.hasContent(DragAndDropDataFormats.ENTRIES)) {
                TransferableEntrySelection entrySelection = (TransferableEntrySelection) dragboard.getContent(DragAndDropDataFormats.ENTRIES);
                row.getItem().addEntriesToGroup(entrySelection.getSelection());
                success = true;
            }
            event.setDropCompleted(success);
            event.consume();
        });
        return row;
    });
    // Filter text field
    setupClearButtonField(searchField);
}