javafx.scene.control.TableView#getSelectionModel ( )源码实例Demo

@SuppressWarnings("unchecked")
public void selectCells(TableView<?> tableView, String value) {
    @SuppressWarnings("rawtypes")
    TableViewSelectionModel selectionModel = tableView.getSelectionModel();
    selectionModel.clearSelection();
    JSONObject cells = new JSONObject(value);
    JSONArray object = (JSONArray) cells.get("cells");
    for (int i = 0; i < object.length(); i++) {
        JSONArray jsonArray = object.getJSONArray(i);
        int rowIndex = Integer.parseInt(jsonArray.getString(0));
        int columnIndex = getColumnIndex(jsonArray.getString(1));
        @SuppressWarnings("rawtypes")
        TableColumn column = tableView.getColumns().get(columnIndex);
        if (getVisibleCellAt(tableView, rowIndex, columnIndex) == null) {
            tableView.scrollTo(rowIndex);
            tableView.scrollToColumn(column);
        }
        selectionModel.select(rowIndex, column);
    }
}
 

@Override
public boolean marathon_select(String value) {
    TableView<?> tableView = (TableView<?>) node;
    TableViewSelectionModel<?> selectionModel = tableView.getSelectionModel();
    if ("".equals(value)) {
        selectionModel.clearSelection();
        return true;
    } else if (value.equals("all")) {
        int rowSize = tableView.getItems().size();
        for (int i = 0; i < rowSize; i++) {
            selectionModel.select(i);
        }
        return true;
    } else if (selectionModel.isCellSelectionEnabled()) {
        selectCells(tableView, value);
        return true;
    } else {
        int[] selectedRows = getSelectedRows(value);
        selectionModel.clearSelection();
        for (int rowIndex : selectedRows) {
            if (getVisibleCellAt(tableView, rowIndex, tableView.getColumns().size() - 1) == null) {
                tableView.scrollTo(rowIndex);
            }
            selectionModel.select(rowIndex);
        }
        return true;
    }
}
 

public String getSelection(TableView<?> tableView) {
    TableViewSelectionModel<?> selectionModel = tableView.getSelectionModel();
    if (!selectionModel.isCellSelectionEnabled()) {
        ObservableList<Integer> selectedIndices = selectionModel.getSelectedIndices();
        if (tableView.getItems().size() == selectedIndices.size()) {
            return "all";
        }
        if (selectedIndices.size() == 0) {
            return "";
        }
        return getRowSelectionText(selectedIndices);
    }

    @SuppressWarnings("rawtypes")
    ObservableList<TablePosition> selectedCells = selectionModel.getSelectedCells();
    int[] rows = new int[selectedCells.size()];
    int[] columns = new int[selectedCells.size()];
    int rowCount = tableView.getItems().size();
    int columnCount = tableView.getColumns().size();

    if (selectedCells.size() == rowCount * columnCount) {
        return "all";
    }

    if (selectedCells.size() == 0) {
        return "";
    }
    JSONObject cells = new JSONObject();
    JSONArray value = new JSONArray();
    for (int i = 0; i < selectedCells.size(); i++) {
        TablePosition<?, ?> cell = selectedCells.get(i);
        rows[i] = cell.getRow();
        columns[i] = cell.getColumn();
        List<String> cellValue = new ArrayList<>();
        cellValue.add(cell.getRow() + "");
        cellValue.add(getColumnName(tableView, cell.getColumn()));
        value.put(cellValue);
    }
    cells.put("cells", value);
    return cells.toString();
}
 

public LazyLoadingBehavior(TableView<T> tableView) {
    this(tableView, tableView.itemsProperty(), tableView.getSelectionModel());
}