java - 如何简单地复制我的代码？

Question

我有下面的代码；我希望它还希望将鼠标悬停在“执行的操作”中的代码发生。不用再把代码复制粘贴，次数翻倍，有没有办法轻松设置？

代码:

private void btnGreenActionPerformed(java.awt.event.ActionEvent evt) {                                         
    Color btnGrn = new Color(159, 191, 143);          //Sets the colour to a class
    Color txtGrn = new Color(201, 255, 191);          //Sets the colour to a class
    Color txtGry = new Color(89, 89, 89);             //Sets the colour to a class
    this.getContentPane().setBackground(new java.awt.Color(127,191,95)); //Sets background color to green
    btnConvert.setBackground(btnGrn);                 //Changes the colors to green
    btnReset.setBackground(btnGrn);                   //Changes the colors to green
    btnClose.setBackground(btnGrn);                   //Changes the colors to green
    btnInfo.setBackground(btnGrn);                    //Changes the colors to green
    txtIncome.setBackground(txtGrn);                  //Changes the colors to green
    txtPayable.setBackground(txtGrn);                 //Changes the colors to green
    txtStatus.setBackground(txtGrn);                  //Changes the colors to green
    txtIncome.setForeground(txtGry);                  //Changes the colors to grey
    txtPayable.setForeground(txtGry);                 //Changes the colors to grey
    txtStatus.setForeground(txtGry);                  //Changes the colors to grey
}                                        

注意:我有 7 个按钮，除了颜色值之外，其他按钮都相同。

Answer 1

我会向您的面板类添加一个内部类，以管理颜色，然后根据您的配色方案创建尽可能多的实例，包括您喜欢的任何颜色。像这样的东西。

顺便说一句，这一切都在您的面板类中。我并没有将其设想为它自己的 .java 文件中的独立类；因为它完全与面板的特性有关。一个更可重用的版本看起来会有点不同。

private class ButtonColorScheme {
    final Color paneBackground;
    final Color buttonBackground;
    final Color textBackground;
    final Color textForeground;

    ButtonColorScheme(Color paneBackground, Color buttonBackground, Color textBackground, Color textForeground) {
        this.paneBackground = paneBackground;
        this.buttonBackground = buttonBackground;
        this.textBackground = textBackground;
        this.textForeground = textForeground;
    }

    void apply() {
        getContentPane().setBackground(paneBackground);
        btnConvert.setBackground(buttonBackground);
        btnReset.setBackground(buttonBackground);
        btnClose.setBackground(buttonBackground);
        btnInfo.setBackground(buttonBackground);
        txtIncome.setBackground(textBackground);
        txtPayable.setBackground(textBackground);
        txtStatus.setBackground(textBackground);
        txtIncome.setForeground(textForeground);
        txtPayable.setForeground(textForeground);
        txtStatus.setForeground(textForeground);
    }
}

private final ButtonColorScheme greenAndGrey = new ButtonColorScheme(
    new Color(127,191,95), new Color(159, 191, 143), new Color(201, 255, 191), new Color(89, 89, 89));     

private final ButtonColorScheme redAndBlack = new ButtonColorScheme(
    new Color(191,120,95), new Color(202, 160, 143), new Color(255, 180, 191), Color.BLACK);

public void btnGreenActionPerformed(ActionEvent evt){
   greenAndGrey.apply();
}

public void btnRedActionPerformed(ActionEvent evt){
   redAndBlack.apply();
}