我只是在面对一个我自己无法解决的小问题。我尝试在我的BorderPane中放置一个包含TextField和HTML-Editor的vBox,但是没有使用全部空间。另一个问题是,如果我缩小窗口,html编辑器会与我的左侧选项窗口重叠。

private void initEditor()
{
editor = new HTMLEditor();
editor.setId("editor");
editor.lookup(".top-toolbar").setDisable(true);
editor.lookup(".top-toolbar").setManaged(false);
((ToolBar) editor.lookup(".bottom-toolbar")).getItems().addAll(FXCollections.observableArrayList(((ToolBar)editor.lookup(".top-toolbar")).getItems()));
editorBox = new VBox();
TextField field = new TextField();
field.setPrefHeight(36);
field.setId("editor-title");
editorBox.setFillWidth(true);
editorBox.getChildren().addAll(field, editor);
root.setCenter(editorBox);
}发布于 2012-06-27 06:26:04
好的,这里有几个地方出了问题,我将尝试解决它们,并提供一些建议和示例解决方案。
我尝试在我的BorderPane中放置一个包含TextField和HTML编辑器的vBox,但是没有使用全部空间。
您需要使用VBox.setVgrow(editor, Priority.ALWAYS)方法让HTMLEditor占用VBox中的任何额外空间。此外,请确保HTMLeditor的最大高度不受限制,以便它可以增长以适合可用区域,例如editor.setMaxSize(Double.MAX_VALUE, Double.MAX_VALUE)。调用editorBox.setFillWidth(true)是多余的,因为fillWidth属性的默认值是true。
但是,即使您做到了所有这些(从2.2b13开始),WebPane大小调整中也存在一个bug,这会给您带来问题。在内部,WebPane被实现为包含工具栏和可编辑WebView的GridPane。默认情况下,WebView的首选大小为800x600。HtmlEditor控件不会为WebView设置GridPane约束以允许其大小超过其首选大小。
要解决此问题,可以在将WebView添加到活动场景后通过css查找来查找它,并手动调整GridPane约束。下面是实现这一点的一些代码:
stage.show();
...
WebView webview = (WebView) editor.lookup("WebView");
GridPane.setHgrow(webview, Priority.ALWAYS);
GridPane.setVgrow(webview, Priority.ALWAYS);当我缩小窗口时,
编辑器与我的左侧选项窗口重叠。
在BorderPane中显式设置中心窗格的最小宽度设置,这样它就不会溢出到外边缘窗格。
editorBox.setMinSize(0, 0);您需要这样做,因为BorderPane documentation声明:
默认情况下,
BorderPane不会裁剪其内容,因此,如果子对象的最小大小使其无法适应其空间大小,则子对象的边界可能会延伸到其自身边界之外。
顺便说一句,代码中的查找调用是可疑的。通常,只有将节点添加到所显示的舞台上的活动场景中,并且JavaFX系统有机会在该节点上运行css布局过程之后,才能按CSS查找节点,否则查找将只返回null。
对于调试JavaFX布局问题,ScenicView应用程序是无价的。
下面是一个完整的示例,用于生成与问题中链接的图像类似的布局,但没有您提到的问题。
import com.javafx.experiments.scenicview.ScenicView;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.layout.*;
import javafx.scene.web.*;
import javafx.stage.*;
public class HtmlEditorInBorderPane extends Application {
public static void main(String[] args) { launch(args); }
@Override public void start(final Stage stage) throws IOException {
// option pane.
VBox optionPane = new VBox(10);
MenuBar menuBar = new MenuBar();
menuBar.getMenus().addAll(new Menu("School"), new Menu("Social"), new Menu("Network"));
TreeItem<String> root = new TreeItem<>("Private Notes");
root.setExpanded(false);
root.getChildren().addAll(new TreeItem<>("Layout"), new TreeItem<>("is not"), new TreeItem<>("easy"));
TreeView<String> notes = new TreeView<>(root);
optionPane.getChildren().addAll(menuBar, new Label("Kaiser Notes"), notes);
optionPane.setStyle("-fx-background-color: cornsilk; -fx-padding: 10;");
// editor pane.
HTMLEditor editor = new HTMLEditor();
VBox editorBox = new VBox(10);
TextField textField = new TextField();
editorBox.getChildren().addAll(textField, editor);
editorBox.setStyle("-fx-background-color: mistyrose; -fx-padding: 10;");
editor.setHtmlText(getSampleText());
// option layout constraints
VBox.setVgrow(notes, Priority.ALWAYS);
// editor layout constraints
textField.setMinHeight(Control.USE_PREF_SIZE); // stop the textfield from getting squashed when the scene is sized small.
VBox.setVgrow(editor, Priority.ALWAYS); // tells the editor to fill available vertical space.
editorBox.setMinSize(0, 0); // stops the editor from overflowing it's bounds in a BorderPane.
// layout the scene.
BorderPane layout = new BorderPane();
layout.setLeft(optionPane);
layout.setCenter(editorBox);
stage.setScene(new Scene(layout));
stage.show();
// addition of static layout grow constraints for the htmleditor embedded webview.
WebView webview = (WebView) editor.lookup("WebView");
GridPane.setHgrow(webview, Priority.ALWAYS); // allow the webview to grow beyond it's preferred width of 800.
GridPane.setVgrow(webview, Priority.ALWAYS); // allow the webview to grow beyond it's preferred height of 600.
}
// get some dummy lorem ipsum sample text.
private String getSampleText() throws IOException {
StringBuilder builder = new StringBuilder();
try (BufferedReader in = new BufferedReader(new InputStreamReader(new URL("http://www.lorem-ipsum-text.com/").openStream()))) {
String string;
while ((string = in.readLine()) != null) {
builder.append(string);
}
}
return builder.toString();
}
}发布于 2017-02-14 23:56:14
GridPane gridPane = (GridPane) editor.getChildrenUnmodifiable().get(0);
RowConstraints row1 = new RowConstraints();
row1.setVgrow(Priority.NEVER);
RowConstraints row2 = new RowConstraints();
row2.setVgrow(Priority.NEVER);
RowConstraints row3 = new RowConstraints();
row3.setVgrow(Priority.ALWAYS);
gridPane.getRowConstraints().addAll(row1, row2, row3);发布于 2019-01-26 17:17:15
如何使用FXML设置和调整ScrollPane的大小:
package anchorscroll;
import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Node;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.ScrollPane;
import javafx.scene.layout.Pane;
import javafx.scene.layout.VBox;
public class FXMLDocumentController implements Initializable {
private Label label;
@FXML
private VBox vp;
@FXML
private ScrollPane sp;
@FXML
private Pane panel;
@FXML
private double Width;
@FXML
private double Height;
private void handleButtonAction(ActionEvent event) {
System.out.println("You clicked me!");
label.setText("Hello World!");
}
@Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
Width = panel.getWidth();
Height = panel.getHeight();
sp.setPrefWidth(Width - 60);
sp.setPrefHeight(Height - 60);
panel.widthProperty().addListener(p -> {
Width = panel.getWidth();
Height = panel.getHeight();
System.out.println("Width " + Width + " Height " + Height);
sp.setPrefWidth(Width - 60);
sp.setPrefHeight(Height - 60);
});
panel.heightProperty().addListener(p -> {
Width = panel.getWidth();
Height = panel.getHeight();
System.out.println("Width " + Width + " Height " + Height);
sp.setPrefWidth(Width - 60);
sp.setPrefHeight(Height - 60);
});
VBox v = new VBox();
for (int i = 0; i < 100; i++) {
v.getChildren().add(new Button("Hello " + i));
}
sp.setContent(v);
VBox p = new VBox();
try {
p = FXMLLoader.load(getClass().getResource("NewMessage.fxml")); // "/fxml/Register.fxml"
sp.setContent(p);
} catch (IOException ex) {
Logger.getLogger(FXMLDocumentController.class.getName()).log(Level.SEVERE, null, ex);
}
}
}!NewMessage.fxml需要从VBox面板开始!
如果您不需要加载FXML,请注释或删除这两行:
p = FXMLLoader.load(getClass().getResource("NewMessage.fxml"));
sp.setContent(p);和布局:
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<Pane fx:id="panel" prefHeight="400.0" prefWidth="600.0" stylesheets="@Styles.css" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="anchorscroll.FXMLDocumentController">
<children>
<HBox prefHeight="60.0" prefWidth="600.0">
<children>
<Label text="Label" />
</children>
</HBox>
<VBox fx:id="vp" layoutY="60.0" prefHeight="540.0" prefWidth="60.0">
<children>
<Button mnemonicParsing="false" prefWidth="50.0" text="Button" />
</children>
</VBox>
<ScrollPane fx:id="sp" fitToHeight="true" fitToWidth="true" layoutX="60.0" layoutY="60.0" prefHeight="340.0" prefWidth="540.0" vbarPolicy="ALWAYS" />
</children>
</Pane>https://stackoverflow.com/questions/11213079
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