improved queue

src/main/java/cz/kamma/kfmanager/service/FileOperationQueue.java

@@ -71,6 +71,13 @@ public class FileOperationQueue {
         startNextTask();
     }
 
+    public void cancelAll() {
+        for (QueuedTask task : tasks) {
+            task.cancel();
+        }
+        notifyListeners();
+    }
+
     public void addListener(Consumer<List<QueuedTask>> listener) {
         listeners.add(listener);
     }

src/main/java/cz/kamma/kfmanager/ui/OperationQueueDialog.java

@@ -6,7 +6,11 @@ import cz.kamma.kfmanager.service.FileOperationQueue.QueuedTask;
 import javax.swing.*;
 import javax.swing.table.AbstractTableModel;
 import javax.swing.table.DefaultTableCellRenderer;
+import javax.swing.table.TableCellEditor;
+import javax.swing.table.TableCellRenderer;
 import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -36,6 +40,12 @@ public class OperationQueueDialog extends JDialog {
 
         table.getColumnModel().getColumn(2).setCellRenderer(new ProgressRenderer());
         
+        ButtonRendererColumn buttonRenderer = new ButtonRendererColumn();
+        table.getColumnModel().getColumn(4).setCellRenderer(buttonRenderer);
+        table.getColumnModel().getColumn(4).setCellEditor(buttonRenderer);
+        table.getColumnModel().getColumn(4).setPreferredWidth(40);
+        table.getColumnModel().getColumn(4).setMaxWidth(50);
+        
         JScrollPane scrollPane = new JScrollPane(table);
         add(scrollPane, BorderLayout.CENTER);
 
@@ -43,9 +53,13 @@ public class OperationQueueDialog extends JDialog {
         JButton closeButton = new JButton("Close");
         closeButton.addActionListener(e -> setVisible(false));
         
+        JButton cancelAllButton = new JButton("Cancel All");
+        cancelAllButton.addActionListener(e -> FileOperationQueue.getInstance().cancelAll());
+
         JButton clearButton = new JButton("Clear Completed");
         clearButton.addActionListener(e -> FileOperationQueue.getInstance().clearCompleted());
 
+        buttonPanel.add(cancelAllButton);
         buttonPanel.add(clearButton);
         buttonPanel.add(closeButton);
         add(buttonPanel, BorderLayout.SOUTH);
@@ -60,7 +74,7 @@ public class OperationQueueDialog extends JDialog {
 
     private class TaskTableModel extends AbstractTableModel {
         private List<QueuedTask> tasks = new ArrayList<>();
-        private final String[] columns = {"Operation", "Status", "Progress", "Active File"};
+        private final String[] columns = {"Operation", "Status", "Progress", "Active File", "Action"};
 
         public void setTasks(List<QueuedTask> tasks) {
             this.tasks = tasks;
@@ -74,6 +88,11 @@ public class OperationQueueDialog extends JDialog {
         @Override
         public String getColumnName(int column) { return columns[column]; }
 
+        @Override
+        public boolean isCellEditable(int rowIndex, int columnIndex) {
+            return columnIndex == 4;
+        }
+
         @Override
         public Object getValueAt(int rowIndex, int columnIndex) {
             QueuedTask task = tasks.get(rowIndex);
@@ -82,11 +101,54 @@ public class OperationQueueDialog extends JDialog {
                 case 1: return task.getStatus().toString();
                 case 2: return task; // For progress renderer
                 case 3: return task.getCurrentFile();
+                case 4: return "X";
                 default: return null;
             }
         }
     }
 
+    private class ButtonRendererColumn extends AbstractCellEditor implements TableCellRenderer, TableCellEditor, ActionListener {
+        private final JButton button;
+        private Object currentValue;
+
+        public ButtonRendererColumn() {
+            button = new JButton();
+            button.addActionListener(this);
+            button.setBorderPainted(false);
+            button.setFocusPainted(false);
+            button.setForeground(Color.RED);
+            button.setFont(button.getFont().deriveFont(Font.BOLD));
+        }
+
+        @Override
+        public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
+            button.setText(value == null ? "" : value.toString());
+            return button;
+        }
+
+        @Override
+        public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
+            currentValue = value;
+            button.setText(value == null ? "" : value.toString());
+            return button;
+        }
+
+        @Override
+        public Object getCellEditorValue() {
+            return currentValue;
+        }
+
+        @Override
+        public void actionPerformed(ActionEvent e) {
+            int row = table.convertRowIndexToModel(table.getEditingRow());
+            if (row != -1) {
+                QueuedTask task = model.tasks.get(row);
+                task.cancel();
+                stopCellEditing();
+            }
+        }
+    }
+
     private class ProgressRenderer extends DefaultTableCellRenderer {
         private final JProgressBar progressBar = new JProgressBar(0, 100);