在JavaFX TableView中完全隐藏或禁用水平滚动条

时间:2019-06-26 08:29:49

标签: javafx

我知道还有其他关于此的帖子,但这不是重复的。

如果我使用以下代码从TableView中隐藏水平滚动条,则表格底部仍然有1或2个像素区域,用户可以通过该区域水平滚动TableView ---用鼠标滚轮( SHIFT +鼠标滚轮也可以在桌面区域的任何地方使用。

.table-view *.scroll-bar:horizontal *.increment-button,
.table-view *.scroll-bar:horizontal *.decrement-button {
    -fx-background-color: null;
    -fx-background-radius: 0;
    -fx-background-insets: 0;
    -fx-padding: 0;
}

.table-view *.scroll-bar:horizontal *.increment-arrow,
.table-view *.scroll-bar:horizontal *.decrement-arrow {
    -fx-background-color: null;
    -fx-background-radius: 0;
    -fx-background-insets: 0;
    -fx-padding: 0;
    -fx-shape: null;
}

我尝试了一些反射技巧来访问滚动条,并尝试以这种方式禁用它,但没有成功。有人有主意吗?

编辑-这是一个最小的示例,对我来说,它始终可以在Win 10 JavaFX 12.0.1上重现。

Test.java:

import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.control.SelectionMode;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

/**
 * Horizontal scrolling via mouse wheel is possible when you place the cursor at the bottom of the window, just above the resize-area.
 */
public class Test extends Application {

    @Override
    public void start(Stage primaryStage) {
        TableView<String> table = new TableView<>();

        table.getColumns().add(new TableColumn<>("first"));
        table.getColumns().add(new TableColumn<>("second"));
        table.getColumns().add(new TableColumn<>("third"));
        table.getColumns().add(new TableColumn<>("fourth"));
        table.getColumns().add(new TableColumn<>("fifth"));
        table.getColumns().add(new TableColumn<>("sixth"));
        table.getColumns().add(new TableColumn<>("seventh"));
        table.getColumns().add(new TableColumn<>("eighth"));
        table.getColumns().add(new TableColumn<>("ninth"));
        table.getColumns().add(new TableColumn<>("tenth"));

        table.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);

//        table.addEventFilter(ScrollEvent.ANY, Event::consume);

        ObservableList<String> data = FXCollections.observableArrayList();
        for (int i = 0; i < 5000; i++) {
            data.add("foobar");
        }
        table.setItems(data);

        StackPane root = new StackPane();
        root.getChildren().add(table);

        Scene scene = new Scene(root, 300, 250);

        scene.getStylesheets().add("test.css");

        primaryStage.setTitle("Hello World!");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        Application.launch(Test.class);
    }
}

Test.CSS:

.table-view .scroll-bar * {
    -fx-min-width: 0;
    -fx-pref-width: 0;
    -fx-max-width: 0;

    -fx-min-height: 0;
    -fx-pref-height: 0;
    -fx-max-height: 0;
}

1 个答案:

答案 0 :(得分:1)

如果您不想使用CSS解决方案,则可以这样做

public static <T extends Control> void removeScrollBar(T table) {
        ScrollBar scrollBar = (ScrollBar) table.queryAccessibleAttribute(AccessibleAttribute.HORIZONTAL_SCROLLBAR);
        /*
         *This null-check is for safety reasons if you are using when the table's skin isn't yet initialized.
         * If you use this method in a custom skin you wrote, where you @Override the layoutChildren method,
         * use it there, and it should be always initialized, so null-check would be unnecessary.
         *
         */
        if (scrollBar != null) {
            scrollBar.setPrefHeight(0);
            scrollBar.setMaxHeight(0);
            scrollBar.setOpacity(1);
            scrollBar.setVisible(false); // If you want to keep the scrolling functionality then delete this row.
        }
    }