无法使用quaqua外观

Question

我已经下载了quaqua 8软件包。 我将其quaqua.jar压缩并将quaqua.jar文件放置在项目的工作库中。

然后在主要方法中，我申请了Quaqua外观。 但是我收到一个错误消息，说ch.randelshofer.quaqua package doesn't exist 。 为什么会这样呢？

我还需要做其他事情吗？

也列在编译库中：

我使用的IDE是NetBeans，操作系统是Windows。

Answer 1

来自Netbeans的输出/ Win OS /相同的导入库； Quaqua左，Mac OS X右。

1. 项目清单

从代码

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.UIManager.LookAndFeelInfo;
import javax.swing.event.*;

public class JListDisabledItemDemo implements ItemListener, Runnable {

    private JFrame f = new JFrame("Colors");
    private static final String ITEMS[] = {" black ", " blue ", " green ",
        " orange ", " purple ", " red ", " white ", " yellow "};
    private JList jList;
    private JCheckBox[] checkBoxes;
    private boolean[] enabledFlags;

    @Override
    public void run() {
        JPanel pnlEnablers = new JPanel(new GridLayout(0, 1));
        pnlEnablers.setBorder(BorderFactory.createTitledBorder("Enabled Items"));
        checkBoxes = new JCheckBox[ITEMS.length];
        enabledFlags = new boolean[ITEMS.length];
        for (int i = 0; i < ITEMS.length; i++) {
            checkBoxes[i] = new JCheckBox(ITEMS[i]);
            checkBoxes[i].setSelected(true);
            checkBoxes[i].addItemListener(this);
            enabledFlags[i] = true;
            pnlEnablers.add(checkBoxes[i]);
        }
        jList = new JList(ITEMS);
        jList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        jList.setSelectionModel(new DisabledItemSelectionModel());
        jList.setCellRenderer(new DisabledItemListCellRenderer());
        jList.addListSelectionListener(new ListSelectionListener() {

            @Override
            public void valueChanged(ListSelectionEvent e) {
                if (!e.getValueIsAdjusting()) {
                    System.out.println("selection");
                }
            }
        });
        JScrollPane scroll = new JScrollPane(jList);
        scroll.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
        scroll.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);

        Container contentPane = f.getContentPane();
        contentPane.setLayout(new GridLayout(1, 2));
        contentPane.add(pnlEnablers);
        contentPane.add(scroll);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setLocation(240, 280);
        UIManager.put("List.background", Color.lightGray);
        UIManager.put("List.selectionBackground", Color.orange);
        UIManager.put("List.selectionForeground", Color.blue);
        UIManager.put("Label.disabledForeground", Color.magenta);
        SwingUtilities.updateComponentTreeUI(f);
        f.pack();
        javax.swing.SwingUtilities.invokeLater(new Runnable() {

            @Override
            public void run() {
                f.setVisible(true);
            }
        });
    }

    @Override
    public void itemStateChanged(ItemEvent event) {
        JCheckBox checkBox = (JCheckBox) event.getSource();
        int index = -1;
        for (int i = 0; i < ITEMS.length; i++) {
            if (ITEMS[i].equals(checkBox.getText())) {
                index = i;
                break;
            }
        }
        if (index != -1) {
            enabledFlags[index] = checkBox.isSelected();
            jList.repaint();
        }
    }

    public static void main(String args[]) {
        System.setProperty("Quaqua.tabLayoutPolicy", "wrap");
        try {
            UIManager.setLookAndFeel(ch.randelshofer.quaqua.QuaquaManager.getLookAndFeel());
        } catch (Exception e) {
        }

        /*try {
            for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
                System.out.println(info.getName());
                if ("Nimbus".equals(info.getName())) {
                    UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (UnsupportedLookAndFeelException e) {
            // handle exception
        } catch (ClassNotFoundException e) {
            // handle exception
        } catch (InstantiationException e) {
            // handle exception
        } catch (IllegalAccessException e) {
            // handle exception
        }*/
        SwingUtilities.invokeLater(new JListDisabledItemDemo());
    }

    private class DisabledItemListCellRenderer extends DefaultListCellRenderer {

        private static final long serialVersionUID = 1L;

        @Override
        public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
            Component comp = super.getListCellRendererComponent(list, value, index, false, false);
            JComponent jc = (JComponent) comp;
            if (enabledFlags[index]) {
                if (isSelected & cellHasFocus) {
                    comp.setForeground(Color.black);
                    comp.setBackground(Color.red);
                } else {
                    comp.setBackground(Color.white);
                    comp.setForeground(Color.black);
                }
                if (!isSelected) {
                    if ((value.toString()).trim().equals("yellow")) {
                        comp.setForeground(Color.blue);
                        comp.setBackground(Color.yellow);
                    } else if ((value.toString()).trim().equals("black")) {
                        comp.setForeground(Color.red);
                        comp.setBackground(Color.black);
                    }else if ((value.toString()).trim().equals("orange")) {
                        comp.setForeground(Color.blue);
                        comp.setBackground(Color.orange);
                    }
                }
                return comp;
            }
            comp.setEnabled(false);
            return comp;
        }
    }

    private class DisabledItemSelectionModel extends DefaultListSelectionModel {

        private static final long serialVersionUID = 1L;

        @Override
        public void setSelectionInterval(int index0, int index1) {
            if (enabledFlags[index0]) {
                super.setSelectionInterval(index0, index0);
            } else {
                /*The previously selected index is before this one,
                 * so walk forward to find the next selectable item.*/
                if (getAnchorSelectionIndex() < index0) {
                    for (int i = index0; i < enabledFlags.length; i++) {
                        if (enabledFlags[i]) {
                            super.setSelectionInterval(i, i);
                            return;
                        }
                    }
                } /*
                 * Otherwise, walk backward to find the next selectable item.
                 */ else {
                    for (int i = index0; i >= 0; i--) {
                        if (enabledFlags[i]) {
                            super.setSelectionInterval(i, i);
                            return;
                        }
                    }
                }
            }
        }
    }
}

Quaqua外观官方页面上的通知：

Supported Platforms

The Quaqua Look and Feel supports Apple's J2SE 1.4, J2SE 5 and J2SE 6 
and SoyLatte J2SE 6 on Mac OS X 10.4 and 10.5.

Altough Quaqua works with J2SE 6, it provides limited support for features 
which go beyond J2SE 5.

The Quaqua native libraries support PowerPC and Intel Macs with 32-bits
or 64-bit processors. Quaqua will work without these native libraries, 
but user experience degrades.

Due to copyright restrictions and technical constraints, Quaqua can be 
run on non-Mac OS X systems for development purposes only.
FAQ
Can I use Quaqua on other platforms than Mac OS X?

No, you can't, except for development purposes.
This is because the Aqua user interface can only be licensed from Apple 
for use on Mac OS X.

Even if Apple would license it for use on other platforms, you wouldn't 
want to do it if you care about your users.
Aqua does not just look different than other user interfaces, it feels 
different as well. For example, when compared with the Windows UX 
interface, differences can be found in the set of keyboard accelerators, 
the focus behavior, the selection behavior, the modality of dialogs and 
in the use of transition and animation effects.

有了此许可证，我建议您使用其他（今天和更好的） 自定义外观

Answer 2

IDE将“ ch”下的红色突出显示添加到您的代码中，我想您尚未将该jar文件正确添加到类路径中。 仔细阅读IDE的文档（正在使用的是Netbeans），看看它们如何告诉您将外部jar添加到项目中。