Question

我正在研究一个简单的javaFX桌面软件，它实质上允许用户通过串行通信控制各种灯光。它由三个类组成：

他是UI控制器（使用javaFX场景构建器2.0和类似材质控件的自定义库编写，jfoenix）
具有静态属性的“存储”对象（如打开灯光以及应显示的颜色），此类必须仅包含静态属性，以便与尝试修改某些值的其他对象不冲突。此对象还负责串行通信（使用jssc）
使用计时器控制灯光的线程对象

我必须说我有一个使用swing建立的工作解决方案，但老实说我根本不喜欢它...

这是编译后的用户界面：http://imgur.com/esWFsgh

有两个问题：

我希望顶部的每个按钮（如“barra 1”）显示相应灯的状态，例如，如果“barra 1”打开，它应该是绿色，当它关闭时，它应该是红色。这里的问题是我必须创建一个控制器类的对象才能访问所有按钮，但实际应该是，在实例化的对象中，所有的按钮都消失了，我应该重新创建它们，而且这是不可能的解决方案......我该怎么办？
这很简单，我已经知道我的“听众”是不正确的，但我找不到错误...只要拖动任何滑块，就会抛出Exception in thread "JavaFX Application Thread" java.lang.IllegalArgumentException: argument type mismatch异常。（并且没有提及我的任何课程）

您可以在这里找到代码：

存储类

package com.matteoformenti.rgbcontroller;

import java.awt.*;

/**
 * Created by Matteo on 28/12/2015.
 */
public class Storage
{
    private static final String ON_COLOR = "#4CAF50";
    private static final String OFF_COLOR = "#F44336";

    private static Color color;
    private static boolean bars[] = {false, false, false, false, false};
    private static boolean circles[] = new boolean[2];
    private static boolean usePot = false;

    //-------------------------------------------------------//


    public static boolean getBarValue(int barNumber)
    {
        return bars[barNumber];
    }

    public static void setAllBars(boolean value)
    {
        for(boolean v : bars)
            v = value;
        setAllBarsColors();
    }

    public static boolean[] getAllBars()
    {
        return bars;
    }

    public static void setCircleValue(int circleNumber, boolean value)
    {
        circles[circleNumber-1] = value;
    }

    public static boolean getCircleValue(int circleNumber)
    {
        return circles[circleNumber-1];
    }

    public static void setAllCircles(boolean value)
    {
        for(boolean v : circles)
            v = value;
    }

    public static boolean[] getAllCircles()
    {
        return circles;
    }

    public static void setColor(Color c)
    {
        color = c;
    }

    public static void setRed(int red)
    {
        if(red > 255)
            red = 255;
        if(red < 0)
            red = 0;
        int g = color.getGreen();
        int b = color.getBlue();
        color = new Color(red, g, b);
    }

    public static void setGreen(int green)
    {
        if(green > 255)
            green = 255;
        if(green < 0)
            green = 0;
        int r = color.getRed();
        int b = color.getBlue();
        color = new Color(r, green, b);
    }

    public static void setBlue(int blue)
    {
        if(blue > 255)
            blue = 255;
        if(blue < 0)
            blue = 0;
        int g = color.getGreen();
        int r = color.getRed();
        color = new Color(r, g, blue);
    }

    public static void setHue(int h)
    {
        int rgb = Color.HSBtoRGB(h, 100, 100);
        int red = (rgb >> 16) & 0xFF;
        int green = (rgb >> 8) & 0xFF;
        int blue = rgb & 0xFF;
        color = new Color(red, green, blue);
    }

    public static void invertBarValue(int i)
    {
        bars[i] = !bars[i];
        setBarColor(i);
    }
    public static void invertCircleValue(int i)
    {
        circles[i] = !circles[i];
    }

    public static void setBarColor(int i)
    {
        Controller c = new Controller();
        c.test();
        /*Controller.bar1.setStyle("-fx-background-color: " + ON_COLOR + ";");
        if (bars[i] == true)
            Controller.getBarButton(i).setStyle("-fx-background-color: " + ON_COLOR + ";");
        if (bars[i] == false)
            Controller.getBarButton(i).setStyle("-fx-background-color: " + OFF_COLOR + ";");*/
    }

    public static void setAllBarsColors()
    {/*
        for (int i = 0; i < 5; i++)
        {
            if (bars[i] == true)
                Controller.getBarButton(i + 1).setStyle("-fx-background-color: " + ON_COLOR + ";");
            if (bars[i] == false)
                Controller.getBarButton(i + 1).setStyle("-fx-background-color: " + OFF_COLOR + ";");
        }*/
    }
}

控制器类：

package com.matteoformenti.rgbcontroller;

import com.jfoenix.controls.JFXButton;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.scene.control.Button;
import javafx.scene.control.ColorPicker;
import javafx.scene.control.Slider;
import javafx.scene.layout.Background;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;

import java.awt.*;

public class Controller
{

    @FXML
    private JFXButton bar1;

    @FXML
    private JFXButton bar2;

    @FXML
    private JFXButton bar3;

    @FXML
    private JFXButton bar4;

    @FXML
    private JFXButton bar5;

    @FXML
    private JFXButton circle1;

    @FXML
    private JFXButton circle2;

    @FXML
    private Slider rSlider;

    @FXML
    private Slider gSlider;

    @FXML
    private Slider bSlider;

    @FXML
    private Slider aSlider;

    @FXML
    private JFXButton pot;

    @FXML
    private JFXButton stroboBars;

    @FXML
    private Button stroboBarsConfig;

    @FXML
    private JFXButton stroboCircles;

    @FXML
    private Button stroboCirclesConfig;

    @FXML
    private JFXButton fadeColors;

    @FXML
    private Button fadeColorsConfig;

    @FXML
    private ColorPicker colorPicker;

    @FXML
    private Pane frame;

    public void test()
    {
        bar1.setStyle("-fx-background-color: #33b5e5;");
    }

    @FXML
    void bar1Pressed(ActionEvent event)
    {
        Storage.invertBarValue(0);
    }

    @FXML
    void bar2Pressed(ActionEvent event) {Storage.invertBarValue(1);}

    @FXML
    void bar3Pressed(ActionEvent event)
    {
        Storage.invertBarValue(2);
    }

    @FXML
    void bar4Pressed(ActionEvent event) {Storage.invertBarValue(3);}

    @FXML
    void bar5Pressed(ActionEvent event) {Storage.invertBarValue(4);}

    @FXML
    void circle1Pressed(ActionEvent event) {
    }

    @FXML
    void circle2Pressed(ActionEvent event) {

    }

    @FXML
    void potPressed(ActionEvent event) {

    }

    @FXML
    void rSliderChanged(ActionEvent event)
    {
    }

    @FXML
    void gSliderChanged(ActionEvent event) {

    }

    @FXML
    void bSliderChanged(ActionEvent event) {

    }

    @FXML
    void aSliderChanged(ActionEvent event) {

    }

    @FXML
    void colorPickerChanged(ActionEvent event)
    {
        Color colorAWT = Utility.javaFXtoAWTColor(colorPicker.getValue());
        frame.setStyle("-fx-background-color: #" + colorPicker.getValue().toString().substring(2,8) + ";");
    }

    @FXML
    void stroboBarsPressed(ActionEvent event) {

    }

    @FXML
    void stroboBarsConfigPressed(ActionEvent event) {

    }

    @FXML
    void stroboCirclesPressed(ActionEvent event) {

    }

    @FXML
    void stroboCirclesConfigPressed(ActionEvent event) {

    }

    @FXML
    void fadeColorsPressed(ActionEvent event) {

    }

    @FXML
    void fadeColorsConfigPressed(ActionEvent event) {

    }
}

和fxml布局

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.paint.*?>
<?import com.jfoenix.controls.*?>
<?import javafx.scene.text.*?>
<?import javafx.geometry.*?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>


<Pane fx:id="frame" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="260.0" prefWidth="620.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.matteoformenti.rgbcontroller.Controller">
   <children>
      <HBox fx:id="buttonsBox1" layoutY="30.0" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="40.0" prefWidth="620.0">
         <children>
            <JFXButton fx:id="bar1" alignment="CENTER" buttonType="RAISED" onAction="#bar1Pressed" ripplerFill="WHITE" style="-fx-background-color: #F44336;" text="Barra 1">
               <font>
                  <Font name="Roboto Light" size="12.0" />
               </font>
               <HBox.margin>
                  <Insets bottom="10.0" left="10.0" right="5.0" top="10.0" />
               </HBox.margin>
            </JFXButton>
            <JFXButton fx:id="bar2" alignment="CENTER" buttonType="RAISED" layoutX="20.0" layoutY="20.0" onAction="#bar2Pressed" ripplerFill="WHITE" style="-fx-background-color: #F44336;" text="Barra 2">
               <font>
                  <Font name="Roboto Light" size="12.0" />
               </font>
               <HBox.margin>
                  <Insets bottom="10.0" left="5.0" right="5.0" top="10.0" />
               </HBox.margin>
            </JFXButton>
            <JFXButton fx:id="bar3" alignment="CENTER" buttonType="RAISED" layoutX="80.0" layoutY="10.0" onAction="#bar3Pressed" ripplerFill="WHITE" style="-fx-background-color: #F44336;" text="Barra 3">
               <font>
                  <Font name="Roboto Light" size="12.0" />
               </font>
               <HBox.margin>
                  <Insets bottom="10.0" left="5.0" right="5.0" top="10.0" />
               </HBox.margin>
            </JFXButton>
            <JFXButton fx:id="bar4" alignment="CENTER" buttonType="RAISED" layoutX="135.0" layoutY="10.0" onAction="#bar4Pressed" ripplerFill="WHITE" style="-fx-background-color: #F44336;" text="Barra 4">
               <font>
                  <Font name="Roboto Light" size="12.0" />
               </font>
               <HBox.margin>
                  <Insets bottom="10.0" left="5.0" right="5.0" top="10.0" />
               </HBox.margin>
            </JFXButton>
            <JFXButton fx:id="bar5" alignment="CENTER" buttonType="RAISED" layoutX="190.0" layoutY="10.0" onAction="#bar5Pressed" ripplerFill="WHITE" style="-fx-background-color: #F44336;" text="Barra 5">
               <font>
                  <Font name="Roboto Light" size="12.0" />
               </font>
               <HBox.margin>
                  <Insets bottom="10.0" left="5.0" right="5.0" top="10.0" />
               </HBox.margin>
            </JFXButton>
            <JFXButton fx:id="circle1" alignment="CENTER" buttonType="RAISED" layoutX="280.0" layoutY="20.0" onAction="#circle1Pressed" ripplerFill="WHITE" style="-fx-background-color: #F44336;" text="Cerchio 1">
               <font>
                  <Font name="Roboto Light" size="12.0" />
               </font>
               <HBox.margin>
                  <Insets bottom="10.0" left="20.0" right="5.0" top="10.0" />
               </HBox.margin>
            </JFXButton>
            <JFXButton fx:id="circle2" alignment="CENTER" buttonType="RAISED" layoutX="340.0" layoutY="10.0" onAction="#circle2Pressed" ripplerFill="WHITE" style="-fx-background-color: #F44336;" text="Cerchio 2">
               <font>
                  <Font name="Roboto Light" size="12.0" />
               </font>
               <HBox.margin>
                  <Insets left="5.0" right="5.0" top="10.0" />
               </HBox.margin>
            </JFXButton>
            <JFXButton fx:id="pot" alignment="CENTER" buttonType="RAISED" layoutX="395.0" layoutY="10.0" onAction="#potPressed" ripplerFill="WHITE" style="-fx-background-color: #F44336;" text="Potenziometri">
               <font>
                  <Font name="Roboto Light" size="12.0" />
               </font>
               <HBox.margin>
                  <Insets left="20.0" top="10.0" />
               </HBox.margin>
            </JFXButton>
         </children>
      </HBox>
      <HBox alignment="CENTER" fillHeight="false" layoutY="80.0" prefHeight="40.0" prefWidth="620.0">
         <children>
            <VBox prefHeight="200.0" prefWidth="100.0" HBox.hgrow="ALWAYS">
               <children>
                  <Label alignment="CENTER" contentDisplay="CENTER" prefHeight="17.0" prefWidth="135.0" text="Rosso" textAlignment="CENTER" />
                  <Slider fx:id="rSlider" max="255.0" onDragDetected="#rSliderChanged" value="128.0" />
               </children>
               <HBox.margin>
                  <Insets left="10.0" right="10.0" />
               </HBox.margin>
            </VBox>
            <VBox prefHeight="200.0" prefWidth="100.0" HBox.hgrow="ALWAYS">
               <children>
                  <Label alignment="CENTER" contentDisplay="CENTER" prefHeight="17.0" prefWidth="135.0" text="Verde" textAlignment="CENTER" />
                  <Slider fx:id="gSlider" max="255.0" onDragDetected="#gSliderChanged" value="128.0" />
               </children>
               <HBox.margin>
                  <Insets left="10.0" right="10.0" />
               </HBox.margin>
            </VBox>
            <VBox layoutX="110.0" layoutY="10.0" prefHeight="200.0" prefWidth="100.0" HBox.hgrow="ALWAYS">
               <children>
                  <Label alignment="CENTER" contentDisplay="CENTER" prefHeight="17.0" prefWidth="135.0" text="Blu" textAlignment="CENTER" VBox.vgrow="ALWAYS" />
                  <Slider fx:id="bSlider" max="255.0" onDragDetected="#bSliderChanged" value="128.0" />
               </children>
               <HBox.margin>
                  <Insets left="10.0" right="10.0" />
               </HBox.margin>
            </VBox>
            <VBox layoutX="210.0" layoutY="10.0" prefHeight="200.0" prefWidth="100.0" HBox.hgrow="ALWAYS">
               <children>
                  <Label alignment="CENTER" contentDisplay="CENTER" prefHeight="17.0" prefWidth="135.0" text="Luminosità" textAlignment="CENTER" />
                  <Slider fx:id="aSlider" max="255.0" onDragDetected="#aSliderChanged" value="128.0" />
               </children>
               <HBox.margin>
                  <Insets left="10.0" right="10.0" />
               </HBox.margin>
            </VBox>
         </children>
      </HBox>
      <ColorPicker fx:id="colorPicker" layoutX="10.0" layoutY="130.0" onAction="#colorPickerChanged" prefHeight="25.0" prefWidth="600.0" />
      <HBox alignment="TOP_CENTER" layoutY="175.0" prefHeight="50.0" prefWidth="620.0">
         <children>
            <HBox prefHeight="50.0" prefWidth="150.0">
               <children>
                  <JFXButton fx:id="stroboBars" alignment="CENTER" buttonType="RAISED" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" onAction="#stroboBarsPressed" ripplerFill="WHITE" style="-fx-background-color: #F44336;" text="Strobo Barre" textAlignment="CENTER" HBox.hgrow="ALWAYS">
                     <HBox.margin>
                        <Insets bottom="10.0" left="10.0" right="5.0" top="10.0" />
                     </HBox.margin>
                  </JFXButton>
                  <Button fx:id="stroboBarsConfig" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" mnemonicParsing="false" onAction="#stroboBarsConfigPressed" prefHeight="25.0" prefWidth="25.0" style="-fx-background-color: #33b5e5;" textFill="#33b5e5">
                     <HBox.margin>
                        <Insets bottom="10.0" right="10.0" top="10.0" />
                     </HBox.margin>
                  </Button>
               </children>
            </HBox>
            <HBox layoutX="150.0" layoutY="10.0" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="50.0" prefWidth="150.0">
               <children>
                  <JFXButton fx:id="stroboCircles" alignment="CENTER" buttonType="RAISED" onAction="#stroboCirclesPressed" ripplerFill="WHITE" style="-fx-background-color: #F44336;" text="Strobo Cerchi" textAlignment="CENTER" HBox.hgrow="ALWAYS">
                     <HBox.margin>
                        <Insets bottom="10.0" left="10.0" right="5.0" top="10.0" />
                     </HBox.margin>
                  </JFXButton>
                  <Button fx:id="stroboCirclesConfig" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" mnemonicParsing="false" onAction="#stroboCirclesConfigPressed" prefHeight="25.0" prefWidth="25.0" style="-fx-background-color: #33b5e5;" textFill="#33b5e5">
                     <HBox.margin>
                        <Insets bottom="10.0" right="10.0" top="10.0" />
                     </HBox.margin>
                  </Button>
               </children>
            </HBox>
            <HBox layoutX="320.0" layoutY="10.0" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="50.0" prefWidth="150.0">
               <children>
                  <JFXButton fx:id="fadeColors" alignment="CENTER" buttonType="RAISED" onAction="#fadeColorsPressed" ripplerFill="WHITE" style="-fx-background-color: #F44336;" text="Strobo Cerchi" textAlignment="CENTER" HBox.hgrow="ALWAYS">
                     <HBox.margin>
                        <Insets bottom="10.0" left="10.0" right="5.0" top="10.0" />
                     </HBox.margin>
                  </JFXButton>
                  <Button fx:id="fadeColorsConfig" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" mnemonicParsing="false" onAction="#fadeColorsConfigPressed" prefHeight="25.0" prefWidth="25.0" style="-fx-background-color: #33b5e5;" textFill="#33b5e5">
                     <HBox.margin>
                        <Insets bottom="10.0" right="10.0" top="10.0" />
                     </HBox.margin>
                  </Button>
               </children>
            </HBox>
         </children>
      </HBox>
   </children>
</Pane>

非常感谢您的帮助，祝您度过愉快的一天！ Formenti Matteo

Answer 1

您获得的异常是因为您试图将MouseEvent处理程序挂钩到ActionEvent处理程序 - 请参阅here。将参数类型更改为MouseEvent应该可以消除异常。

然而！此活动涉及drag-and-drop，这可能不是您追求的！请参阅this tutorial - 您应该绑定到滑块的value属性，或者向其添加ChangeListener。

从其他对象动态更改JavaFX控件

1 个答案: