java - 表列不会占用 javaFX 中 TableView 的完整大小

标签 java user-interface javafx-2 scenebuilder

我正在尝试创建一个包含两列的表。 我正在使用 netbeans 7.2 中包含的场景构建器。 在我看到的所有示例中，您需要做的就是将表格列拖到表格中，它将占用完整大小，在我的情况下并非如此。 这是场景生成器生成的 fxml 文件。 只是要清楚我没有从 java 更改表属性。

fxml:

<?xml version="1.0" encoding="UTF-8"?>

<?import java.lang.*?>
<?import java.net.*?>
<?import java.util.*?>
<?import javafx.geometry.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.image.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.text.*?>

<AnchorPane id="AnchorPane" prefHeight="758.0" prefWidth="956.0" styleClass="screen" xmlns:fx="http://javafx.com/fxml" fx:controller="bgu.dcr.az.cpu.ui.expb.ExperimentBuilderScreen">
  <children>
    <GridPane id="gridPane1" prefHeight="517.0" prefWidth="600.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
      <children>
        <Label id="label1" alignment="CENTER" contentDisplay="CENTER" prefHeight="38.0" prefWidth="9999.0" styleClass="caption" text="Create New Experiment" textFill="#990000" GridPane.columnIndex="0" GridPane.rowIndex="0">
          <font>
            <Font name="Consolas Bold" size="20.0" />
          </font>
        </Label>
        <HBox id="hBox1" alignment="CENTER" prefHeight="100.0" prefWidth="200.0" spacing="5.0" GridPane.columnIndex="0" GridPane.rowIndex="1">
          <children>
            <Label id="label2" graphicTextGap="0.0" styleClass="field-label" text="Experiment Name">
              <font>
                <Font name="Consolas" size="15.0" />
              </font>
              <HBox.margin>
                <Insets top="3.0" />
              </HBox.margin>
            </Label>
            <TextField id="textField1" prefWidth="200.0" HBox.hgrow="ALWAYS" />
            <Button id="button2" fx:id="saveButton" styleClass="dialog-button" text="Save" />
            <Button id="button3" styleClass="dialog-button" text="Dismiss" />
          </children>
          <padding>
            <Insets bottom="5.0" left="5.0" right="5.0" top="5.0" fx:id="x3" />
          </padding>
        </HBox>
        <VBox id="VBox" alignment="CENTER" spacing="5.0" GridPane.columnIndex="0" GridPane.rowIndex="2">
          <children>
            <Label id="label3" prefWidth="9999.0" styleClass="field-label" text="Experiment Tests">
              <VBox.margin>
                <Insets left="5.0" top="5.0" />
              </VBox.margin>
            </Label>
            <HBox id="HBox" alignment="CENTER" spacing="5.0">
              <children>
                <Button id="button1" prefHeight="999.0" styleClass="add-button" text="New">
                  <HBox.margin>
                    <Insets bottom="5.0" left="5.0" right="5.0" top="5.0" fx:id="x3" />
                  </HBox.margin>
                </Button>
                <ListView id="listView1" fx:id="tests" orientation="HORIZONTAL" prefHeight="999.0" prefWidth="200.0" HBox.hgrow="ALWAYS">
                  <HBox.margin>
                    <Insets bottom="4.0" right="5.0" top="4.0" />
                  </HBox.margin>
                </ListView>
              </children>
            </HBox>
          </children>
        </VBox>
        <VBox id="vBox1" prefHeight="200.0" prefWidth="100.0" GridPane.columnIndex="0" GridPane.rowIndex="3">
          <children>
            <GridPane id="gridPane2" VBox.vgrow="ALWAYS">
              <children>
                <VBox id="vBox2" prefHeight="321.0" prefWidth="150.0" styleClass="with-dashed-border" GridPane.columnIndex="0" GridPane.rowIndex="0" GridPane.rowSpan="4">
                  <children>
                    <Label id="label4" text="Algorithms">
                      <graphic>
                        <ImageView id="emptyImageView1" fitHeight="32.0" fitWidth="32.0" preserveRatio="true">
                          <image>
                            <Image url="@_algo.png" preserveRatio="false" smooth="false" />
                          </image>
                        </ImageView>
                      </graphic>
                    </Label>
                    <Button id="button1" fx:id="newAlgorithmButton" prefWidth="999.0" styleClass="add-button" text="New" VBox.margin="$x3" />
                  </children>
                  <GridPane.margin>
                    <Insets bottom="10.0" left="10.0" right="10.0" top="10.0" fx:id="x2" />
                  </GridPane.margin>
                </VBox>
                <VBox id="vBox2" prefHeight="321.0" prefWidth="150.0" styleClass="with-dashed-border" GridPane.columnIndex="1" GridPane.margin="$x2" GridPane.rowIndex="1">
                  <children>
                    <Label id="label4" text="Problem Generator">
                      <graphic>
                        <ImageView id="emptyImageView1" fitHeight="32.0" fitWidth="32.0" preserveRatio="true">
                          <image>
                            <Image url="@_pgen.png" preserveRatio="false" smooth="false" />
                          </image>
                        </ImageView>
                      </graphic>
                    </Label>
                    <Button id="button1" maxHeight="999.0" prefHeight="999.0" prefWidth="999.0" styleClass="add-button" text="New" VBox.margin="$x3" VBox.vgrow="ALWAYS" />
                  </children>
                </VBox>
                <VBox id="vBox2" prefHeight="321.0" prefWidth="150.0" styleClass="with-dashed-border" GridPane.columnIndex="2" GridPane.margin="$x2" GridPane.rowIndex="1">
                  <children>
                    <Label id="label4" prefWidth="9999.0" text="Correctness tester">
                      <graphic>
                        <ImageView id="emptyImageView1" fitHeight="32.0" fitWidth="32.0" preserveRatio="true">
                          <image>
                            <Image url="@_ctest.png" preserveRatio="false" smooth="false" />
                          </image>
                        </ImageView>
                      </graphic>
                    </Label>
                    <Button id="button1" maxHeight="999.0" maxWidth="999.0" prefHeight="999.0" prefWidth="999.0" styleClass="add-button" text="New" VBox.margin="$x3" VBox.vgrow="ALWAYS" />
                  </children>
                </VBox>
                <VBox id="vBox2" prefHeight="321.0" prefWidth="150.0" styleClass="with-dashed-border" GridPane.columnIndex="1" GridPane.margin="$x2" GridPane.rowIndex="2">
                  <children>
                    <Label id="label4" prefWidth="130.0" text="Message delayer">
                      <graphic>
                        <ImageView id="emptyImageView1" fitHeight="32.0" fitWidth="32.0" preserveRatio="true">
                          <image>
                            <Image url="@_mdel.png" preserveRatio="false" smooth="false" />
                          </image>
                        </ImageView>
                      </graphic>
                    </Label>
                    <Button id="button1" maxHeight="999.0" maxWidth="999.0" prefHeight="999.0" prefWidth="999.0" styleClass="add-button" text="New" VBox.margin="$x3" VBox.vgrow="ALWAYS" />
                  </children>
                </VBox>
                <VBox id="vBox2" prefHeight="321.0" prefWidth="150.0" styleClass="with-dashed-border" GridPane.columnIndex="2" GridPane.margin="$x2" GridPane.rowIndex="2">
                  <children>
                    <Label id="label4" prefWidth="130.0" text="Limiter">
                      <graphic>
                        <ImageView id="emptyImageView1" fitHeight="32.0" fitWidth="32.0" preserveRatio="true">
                          <image>
                            <Image url="@_limiter.png" preserveRatio="false" smooth="false" />
                          </image>
                        </ImageView>
                      </graphic>
                    </Label>
                    <Button id="button1" maxHeight="999.0" maxWidth="999.0" prefHeight="999.0" prefWidth="999.0" styleClass="add-button" text="New" VBox.margin="$x3" VBox.vgrow="ALWAYS" />
                  </children>
                </VBox>
                <VBox id="vBox2" prefHeight="321.0" prefWidth="150.0" styleClass="with-dashed-border" GridPane.columnIndex="3" GridPane.margin="$x2" GridPane.rowIndex="0" GridPane.rowSpan="4">
                  <children>
                    <Label id="label4" prefWidth="9999.0" text="Statistic collectors">
                      <graphic>
                        <ImageView id="emptyImageView1" fitHeight="32.0" fitWidth="32.0" preserveRatio="true">
                          <image>
                            <Image url="@_scol.png" preserveRatio="false" smooth="false" />
                          </image>
                        </ImageView>
                      </graphic>
                    </Label>
                    <Button id="button1" prefWidth="999.0" styleClass="add-button" text="New" VBox.margin="$x3" />
                  </children>
                </VBox>
                <HBox id="hBox1" alignment="CENTER" prefHeight="100.0" prefWidth="200.0" spacing="5.0" GridPane.columnIndex="1" GridPane.columnSpan="2" GridPane.rowIndex="0">
                  <children>
                    <Label id="label2" graphicTextGap="0.0" styleClass="field-label" text="Name">
                      <HBox.margin>
                        <Insets top="7.0" />
                      </HBox.margin>
                    </Label>
                    <TextField id="textField1" maxHeight="28.0" minHeight="28.0" prefHeight="28.0" prefWidth="200.0" text="Empty Test" HBox.hgrow="ALWAYS" />
                  </children>
                  <padding>
                    <Insets bottom="5.0" left="5.0" right="5.0" top="5.0" fx:id="x3" />
                  </padding>
                </HBox>
                <VBox id="vBox3" prefHeight="200.0" prefWidth="100.0" GridPane.columnIndex="1" GridPane.rowIndex="3" />
              </children>
              <columnConstraints>
                <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
                <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
                <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
                <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
              </columnConstraints>
              <rowConstraints>
                <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
                <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
                <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
                <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
              </rowConstraints>
            </GridPane>
          </children>
        </VBox>
        <VBox id="vBox4" alignment="CENTER" styleClass="with-dashed-border" GridPane.columnIndex="0" GridPane.halignment="CENTER" GridPane.hgrow="ALWAYS" GridPane.rowIndex="4" GridPane.valignment="CENTER" GridPane.vgrow="ALWAYS">
          <children>
            <TableView id="tableView1" prefHeight="54.0" prefWidth="837.0" VBox.vgrow="ALWAYS">
              <columns>
                <TableColumn prefWidth="75.0" text="Column X" />
                <TableColumn prefWidth="75.0" text="Column X" />
              </columns>
            </TableView>
          </children>
          <GridPane.margin>
            <Insets bottom="10.0" left="10.0" right="10.0" top="10.0" fx:id="x2" />
          </GridPane.margin>
        </VBox>
      </children>
      <columnConstraints>
        <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
      </columnConstraints>
      <rowConstraints>
        <RowConstraints maxHeight="38.0" minHeight="38.0" prefHeight="38.0" vgrow="NEVER" />
        <RowConstraints maxHeight="32.0" minHeight="32.0" prefHeight="32.0" vgrow="NEVER" />
        <RowConstraints maxHeight="100.0" minHeight="100.0" prefHeight="100.0" vgrow="SOMETIMES" />
        <RowConstraints vgrow="SOMETIMES" />
        <RowConstraints maxHeight="100.0" prefHeight="100.0" valignment="CENTER" vgrow="ALWAYS" />
      </rowConstraints>
    </GridPane>
  </children>
  <stylesheets>
    <URL value="@_style.css" />
    <URL value="@../_style.css" />
  </stylesheets>
</AnchorPane>

最佳答案

更新

JavaFX 2.2+ 版本中的新功能使此答案在与 FXML 文档一起应用时已过时。

一个基于 FXML 的解决方案，它使用新的 FXML 功能允许通过 FXML 设置列大小:FXML set TableView column resize policy .

<TableView fx:id="tableView" layoutX="110.0" layoutY="78.0" prefHeight="200.0" prefWidth="396.0">
    <columnResizePolicy><TableView fx:constant="CONSTRAINED_RESIZE_POLICY"/></columnResizePolicy>
    <columns>
        <TableColumn prefWidth="75.0" text="Column X" />
        <TableColumn prefWidth="75.0" text="Column X" />
    </columns>
</TableView>

如果您不使用 FXML，TableView 的调整大小策略仍然可以通过此答案中定义的代码设置:

tableView.setColumnResizePolicy(TableView.CONSTRAINED_RESIZE_POLICY);

在您的 FXML 中，您已将表格的首选宽度定义为 837，将每列的首选宽度定义为 75。默认情况下，JavaFX 列大小调整策略将保持列的首选宽度。除非您设置新的列大小调整策略或将所有列的首选宽度总和设置为表格宽度，否则您不会让表格列填满整个表格的宽度。

JavaFX 确实为 modify the default column resizing policy 提供了一种机制。 .通过将列调整大小策略设置为 CONSTRAINED_RESIZE_POLICY ，每列的宽度总和将被限制为填充 tableview 的宽度 - 即使调整了 tableview 的大小或调整了单个列的大小。这可能是您想要的行为。

虽然可能有一种方法可以通过 FXML 在 tableView 上设置 CONSTRAINED_RESIZE_POLICY，但我不知道有一种方法(尽管我在 fxml 方面的技能还很初级 - 所以也许更知情的人可以使用纯 fxml 完成配置)。

您可以为您的 fxml 文件定义一个 Controller ，然后在 Controller 中配置调整大小策略。以下代码演示了一个完整的示例(针对 JavaFX 2.2b17 预览版编写)。

FXML 文件:

<?xml version="1.0" encoding="UTF-8"?>

<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.paint.*?>

<AnchorPane id="AnchorPane" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns:fx="http://javafx.com/fxml" fx:controller="tableview.TableViewController">
  <children>
    <TableView fx:id="tableView" layoutX="110.0" layoutY="78.0" prefHeight="200.0" prefWidth="396.0">
      <columns>
        <TableColumn prefWidth="75.0" text="Column X" />
        <TableColumn prefWidth="75.0" text="Column X" />
      </columns>
    </TableView>
  </children>
</AnchorPane>

Controller 类:

package tableview;

import java.net.URL;
import java.util.ResourceBundle;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.TableView;

/* controller class for the tableview fxml definition */
public class TableViewController implements Initializable {
  @FXML //  fx:id="tableView"
  private TableView<?> tableView; // Value injected by FXMLLoader

  @Override // This method is called by the FXMLLoader when initialization is complete
  public void initialize(URL fxmlFileLocation, ResourceBundle resources) {
    assert tableView != null : "fx:id=\"tableView\" was not injected: check your FXML file 'tableview.fxml'.";

    // initialize your logic here: all @FXML variables will have been injected
    tableView.setColumnResizePolicy(TableView.CONSTRAINED_RESIZE_POLICY);
  }
}

应用类:

package tableview;

import java.io.IOException;
import java.net.URL;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.stage.Stage;

/** Main application class for tableview fxml demo application */
public class TableViewApplication extends Application {
  public static void main(String[] args) { launch(args); }
  @Override public void start(Stage stage) throws IOException {
    AnchorPane layout = FXMLLoader.load(
      new URL(TableViewApplication.class.getResource("tableview.fxml").toExternalForm())
    );
    stage.setScene(new Scene(layout));
    stage.show();
  }
}

关于java - 表列不会占用 javaFX 中 TableView 的完整大小，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/11484960/

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