全屏缩放应用 JavaFX 8

Question

这将是我关于全面筛选的第一篇文章的第二部分。

在 JavaFX 中全屏缩放开始屏幕

在全屏时稍微调整开始屏幕比例但现在，我似乎无法让游戏本身正确缩放。

package application.console;

import java.util.List;

import application.areas.startingArea.SA;
import application.areas.vanguardForest.VFCmds;
import application.areas.vanguardForest.VFNavi;
import application.areas.vanguardForest.VFPkups;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.control.ScrollPane;
import javafx.scene.control.TextField;
import javafx.scene.control.ScrollPane.ScrollBarPolicy;
import javafx.scene.layout.Background;
import javafx.scene.layout.BackgroundFill;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Region;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.Text;

public class Console extends Region {

    public static double WIDTH = 990;
    public static double HEIGHT = 525;
    
    private final Font cinzel;
    
    private final BorderPane root;
    
    private final VBox console;
    private final ScrollPane scroll;
    
    private final HBox inputBar;
    private final TextField input;
    private final Text carrot;
    
    public Console() {
        this.root = new BorderPane();
        root.setStyle("-fx-background-color: #232323;");
        
        this.cinzel = Font.loadFont("file:fonts/static/Cinzel-Medium.ttf", 16);
        
        this.console = new VBox();
        console.setPrefWidth(WIDTH);
        console.setPrefHeight(HEIGHT);
        
        this.scroll = new ScrollPane();
        scroll.setContent(console);
        scroll.setStyle("-fx-background: #232323;"
                + "-fx-background-color: transparent;"
                + "-fx-border-color: #232323;"
                + "-fx-focus-color: #232323;");
        scroll.setHbarPolicy(ScrollBarPolicy.NEVER);
        scroll.setVbarPolicy(ScrollBarPolicy.NEVER);
        scroll.setBackground(new Background(new BackgroundFill(Color.TRANSPARENT, null, null)));
        
        console.setStyle("-fx-background-color: #232323;"
                + "-fx-focus-color: #232323;");
        
        console.heightProperty().addListener(new ChangeListener<Object>() {
            @Override
            public void changed(ObservableValue<?> observable, Object oldValue, Object newValue) {
                
                scroll.setVvalue((Double)newValue);
            }
            
        });
        
        this.inputBar = new HBox();
        inputBar.setPrefSize(WIDTH, 16);
        
        this.input = new TextField();
        input.setStyle("-fx-background-color: transparent;"
                + "-fx-text-fill: #FFFFFF;"
                + "-fx-highlight-fill: #FFFFFF;"
                + "-fx-highlight-text-fill: #232323;"
                );
        input.setFont(cinzel);
        input.setPrefWidth(WIDTH);
        
        this.carrot = new Text(" > ");
        carrot.setFont(Font.loadFont("file:fonts/static/Cinzel-Medium.ttf", 24));
        carrot.setFill(Color.WHITE);
        
        
        inputBar.getChildren().addAll(carrot, input);
        
        root.setMinSize(WIDTH, (HEIGHT - input.getHeight()));
        
        input.setOnAction(e -> {
            
            String s = (input.getText()).stripTrailing();
            
            
            if ((SA.isBuried || SA.inVF) && SS.gameStart) {
                Cmds.commands(s);   //has general functions
                VFCmds.commands(s); //doesn't have function until specific command 
                VFPkups.pickUp(s); //commands that allows pickups to be made within the game
                VFNavi.commands(s); //commands navigation for selected area
            } else {
                Cmds.commands(s);
            }

            input.clear();
        });
        
        root.getChildren().addAll(console, scroll, inputBar);
        root.setBottom(inputBar);
        
    }
    
    @Override 
    protected void layoutChildren() {
        double xScale = getWidth() / root.getWidth();
        double yScale = getHeight() / root.getHeight();
        double scale = Math.min(xScale, yScale);
        
        for (BorderPane bp : List.of(root)) {
            scaleAndCenter(bp, scale); 
        }
        
        for (VBox vb : List.of(console)) {
            scaleAndCenter(vb, scale);
        }
        
        for (HBox hb : List.of(inputBar)) {
            scaleAndCenter(hb, scale);
        }
        
        for (ScrollPane sp : List.of(scroll)) {
            scaleAndCenter(sp, scale); 
        }
        
        for (TextField tf : List.of(input)) {
            scaleAndCenter(tf, scale);
        }
        
        for (Text text : List.of(carrot)) {
            scaleAndCenter(text, scale); 
        }
    }

    private void scaleAndCenter(BorderPane root, double scale) {
        double w = scale * root.getWidth();
        double h = scale * root.getHeight();
        

        root.setPrefSize(w, h);
        root.relocate((getWidth() - w) / 2, (getHeight() - h) / 2);
    }
    
    private void scaleAndCenter(VBox vb, double scale) {
        double w = scale * vb.getWidth();
        double h = scale * vb.getHeight();
        
        vb.setPrefSize(w, h);
        vb.relocate((getWidth() - w) / 2, (getHeight() - h) / 2);
    }
    
    private void scaleAndCenter(HBox hb, double scale) {
        double w = scale * hb.getWidth();
        double h = scale * hb.getHeight();
        
        hb.setPrefSize(w, h);
        hb.relocate((getWidth() - w) / 2, (getHeight() - h) / 2);
    }
    
    private void scaleAndCenter(TextField input, double scale) {
        double w = scale * input.getWidth();
        double h = scale * input.getHeight();
        
        input.setPrefSize(w, 16);
        input.relocate((getWidth() - w) / 2, (getHeight() - h) / 2);

    }
    
    private void scaleAndCenter(ScrollPane scroll, double scale) {
        double w = scale * scroll.getWidth();
        double h = scale * scroll.getHeight();
        
        scroll.setPrefSize(w, h);
        scroll.relocate((getWidth() - w) / 2, (getHeight() - h) / 2);
    }
    
    private void scaleAndCenter(Text text, double scale) {
        double w = scale * text.getLayoutBounds().getWidth();
        double h = scale * text.getLayoutBounds().getHeight();
        double size = scale * text.getFont().getSize();
        
        text.setFont(Font.font(
                text.getFont().getFamily(),
                size));
        text.relocate((getWidth() - w) / 2, (getHeight() - h) / 2);
    }
}

这样做，我收到一条错误消息

Caused by: java.lang.RuntimeException: Exception in Application start method
    at javafx.graphics@18.0.1/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:901)
    at javafx.graphics@18.0.1/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:196)
    at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.lang.IllegalArgumentException: Children: duplicate children added: parent = BorderPane@56dca201

如果我要从 class 中删除BorderPane ，它只会显示一个白色的 window。

package application.console;

import javafx.scene.Parent;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.BorderPane;

public class game {

    public static Parent runGame() {
        
        Console c = new Console();
        AnchorPane anchor = new AnchorPane(c); 
        
        AnchorPane.setTopAnchor(c, 0.0);
        AnchorPane.setRightAnchor(c, 0.0);
        AnchorPane.setBottomAnchor(c, 0.0);
        AnchorPane.setLeftAnchor(c, 0.0);
        
        BorderPane root = new BorderPane();
        root.setCenter(anchor);
        
        return root;
    }
    
}

推理为什么将其设为Parent ：它允许我将它变成一个场景。（尽管可能有许多不同的方法可以做到这一点）我将如何对控制台实施全屏显示并让它显示？

Answer 1

你的问题中代码较多，大部分与你的问题无关，这里不展开讨论。 特别是您的问题与缩放无关。

错误消息告诉您做错了什么：

duplicate children added: parent = BorderPane

造成这种情况的代码是这样的：

this.root = new BorderPane();
// . . .
root.getChildren().addAll(
    console, 
    scroll, 
    inputBar
);
root.setBottom(inputBar);

您将inputBar添加到root BorderPane 两次。

我也不建议直接添加到边框窗格的子项。 相反，使用 borderPane 上的位置设置器来设置子级的位置（这些设置器将在内部将设置节点添加为子级）。 研究BorderPane文档。