用于DefaultTableModel的ImageIcon [英] ImageIcon for DefaultTableModel
本文介绍了用于DefaultTableModel的ImageIcon的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在为学校编写一个程序，您可以记录系统剪贴板的历史记录，我的老师说到目前为止还不错，但是我需要添加图像.因此，我得到了一些图像来表示图像，URL，文本或文件夹.但是，当我尝试对图像添加.addRow时，它将显示图像的来源，而不是实际的图像.这是我的课程
I'm making a program for school which you can log the systems clipboard history, my teacher said it's good so far, but I need to add images. So I got a few images to represent an image, url, text, or a folder. But when I try to .addRow with the image, it shows the source of the image and not the actual image. Here's my class
public class Main extends JFrame implements ClipboardOwner {
private static final long serialVersionUID = -7215911935339264676L;
public final Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
private static DecimalFormat df = new DecimalFormat("#.##");
public static ArrayList<NewEntry> history = new ArrayList<NewEntry>();
private DefaultTableModel model;
private JTable table;
public static void main(String[] args) throws Exception {
UIManager.setLookAndFeel(new GraphiteLookAndFeel());
Static.main.setVisible(true);
}
public Main() {
super("Clipboard Logger");
setSize(667, 418);
setLocationRelativeTo(null);
getRootPane().setWindowDecorationStyle(JRootPane.PLAIN_DIALOG);
setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
model = new DefaultTableModel(null, new String[] { "Type", "Content", "Size", "Date" });
table = new JTable(model) {
private static final long serialVersionUID = 2485117672771964339L;
@Override
public boolean isCellEditable(int row, int column) {
return false;
}
};
table.addMouseListener(new MouseAdapter() {
@Override
public void mouseReleased(MouseEvent e) {
int r = table.rowAtPoint(e.getPoint());
if (r >= 0 && r < table.getRowCount()) {
table.setRowSelectionInterval(r, r);
} else {
table.clearSelection();
}
int rowindex = table.getSelectedRow();
if (rowindex < 0)
return;
if (e.isPopupTrigger() && e.getComponent() instanceof JTable ) {
createAndShowPopupMenu(rowindex, e.getX(), e.getY());
}
}
});
JScrollPane pane = new JScrollPane(table);
table.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
getContentPane().add(pane);
Transferable trans = clipboard.getContents(this);
regainOwnership(trans);
setIconImage(Static.icon);
}
@Override
public void lostOwnership(Clipboard clipboard, Transferable transferable) {
try {
Thread.sleep(50);
Transferable contents = clipboard.getContents(this);
processContents(contents);
regainOwnership(contents);
} catch (Exception e) {
regainOwnership(clipboard.getContents(this));
}
}
public void processContents(Transferable t) throws UnsupportedFlavorException, IOException {
System.out.println("Processing: " + t);
DataFlavor[] flavors = t.getTransferDataFlavors();
File file = new File(t.getTransferData(flavors[0]).toString().replace("[", "").replace("]", ""));
System.out.println("HI"+file.getName());
NewEntry entry = null;
if (t.isDataFlavorSupported(DataFlavor.stringFlavor)) {
System.out.println("String Flavor");
String s = (String) (t.getTransferData(DataFlavor.stringFlavor));
entry = new NewEntry(EntryType.TEXT, s, getSizeUnit(s.getBytes().length), DateFormat.getDateInstance().format(new Date()));
} else if (isValidImage(file.getName()) && file.exists()) {
System.out.println("Image Flavor");
entry = new NewEntry(EntryType.IMAGE, file.getAbsolutePath(), getSizeUnit(file.length()), DateFormat.getDateInstance().format(new Date()));
}
history.add(entry);
model.addRow(new Object[] { entry.getIcon(), entry.getContent(), entry.getSize(), entry.getDate() });
}
public void regainOwnership(Transferable t) {
clipboard.setContents(t, this);
}
public boolean isValidImage(String filename) {
for (String string : ImageIO.getReaderFormatNames()) {
if (filename.endsWith(string)) {
return true;
}
}
return false;
}
public void createAndShowPopupMenu(int index, int x, int y) {
final NewEntry entry = history.get(index);
if (entry == null) return;
JPopupMenu pop = new JPopupMenu();
JMenu jm = new JMenu("Open in");
JMenuItem jmi = new JMenuItem("Browser");
jmi.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
try {
Desktop.getDesktop().browse(new URI("file:///"+entry.getContent().replace("\\", "/")));
} catch (IOException e) {
e.printStackTrace();
} catch (URISyntaxException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
jm.add(jmi);
jmi = new JMenuItem("Windows Explorer");
jmi.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
try {
Desktop.getDesktop().open(new File(entry.getContent()));
} catch (IOException e) {
e.printStackTrace();
}
}
});
jm.add(jmi);
pop.add(jm);
pop.show(this, x, y);
}
public static String getSizeUnit(long dataSize) {
double n = dataSize;
String suffix = "B";
if (n > 1000) {
suffix = "KB";
n /= 1000;
}
if (n > 1000) {
suffix = "MB";
n /= 1000;
}
if (n > 1000) {
suffix = "GB";
n /= 1000;
}
return df.format(n)+suffix;
}
}
这是我的EntryType类
And here's my EntryType class
public class EntryType {
public static final ImageIcon TEXT = new ImageIcon(Toolkit.getDefaultToolkit().getImage("./resources/text.png"));
public static final ImageIcon URL = new ImageIcon(Toolkit.getDefaultToolkit().getImage("./resources/url.png"));
public static final ImageIcon FILE = new ImageIcon(Toolkit.getDefaultToolkit().getImage("./resources/file.png"));
public static final ImageIcon IMAGE = new ImageIcon(Toolkit.getDefaultToolkit().getImage("./resources/image.png"));
}
当执行以下代码行时，我将如何做到这一点:
How would I make it so when I do this line of code:
model.addRow(new Object [] {entry.getIcon()，entry.getContent()，entry.getSize()，entry.getDate()});
model.addRow(new Object[] { entry.getIcon(), entry.getContent(), entry.getSize(), entry.getDate() });
它实际上显示图标而不是源代码吗?
it actually shows the icon and not the source?
推荐答案
JTable提供图像的渲染器.覆盖getColumnClass()并为具有图标的列返回Icon.class.
JTable provides a renderer for images. Override getColumnClass() and return Icon.class for the column that has an icon.
请参见的编辑器和渲染器部分>如何使用表格教程.
See Editors and Renderers part of How to Use Tables tutorial.
这篇关于用于DefaultTableModel的ImageIcon的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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