search in file

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

@@ -35,11 +35,18 @@ public class FileEditor extends JDialog {
     // Allow loading entire file into memory up to this limit (100 MB)
     private final long maxFullLoadBytes = 100L * 1024L * 1024L; // 100 MB
     private JPanel hexControlPanel = null;
+    private JPanel northPanel = null;
     private JButton prevPageBtn = null;
     private JButton nextPageBtn = null;
     private JLabel pageOffsetLabel = null;
     private javax.swing.undo.UndoManager undoManager;
 
+    // Search support
+    private JPanel searchPanel;
+    private JTextField searchField;
+    private JLabel searchStatusLabel;
+    private static String lastSearchValue = "";
+    
     public FileEditor(Window parent, File file, AppConfig config, boolean readOnly) {
         super(parent, (readOnly ? "Prohlížeč - " : "Editor - ") + file.getName(), ModalityType.MODELESS);
         this.file = file;
@@ -61,9 +68,164 @@ public class FileEditor extends JDialog {
         });
     }
     
+    private void initSearchPanel() {
+        searchPanel = new JPanel(new FlowLayout(FlowLayout.LEFT, 5, 2));
+        searchPanel.setBorder(BorderFactory.createMatteBorder(0, 0, 1, 0, Color.GRAY));
+
+        searchField = new JTextField(20);
+        searchField.addActionListener(e -> findNext());
+
+        JButton nextBtn = new JButton("Dále");
+        nextBtn.addActionListener(e -> findNext());
+
+        JButton prevBtn = new JButton("Zpět");
+        prevBtn.addActionListener(e -> findPrevious());
+
+        JButton closeBtn = new JButton("X");
+        closeBtn.setMargin(new Insets(0, 5, 0, 5));
+        closeBtn.addActionListener(e -> hideSearchPanel());
+
+        searchStatusLabel = new JLabel("");
+
+        searchPanel.add(new JLabel("Hledat:"));
+        searchPanel.add(searchField);
+        searchPanel.add(nextBtn);
+        searchPanel.add(prevBtn);
+        searchPanel.add(closeBtn);
+        searchPanel.add(searchStatusLabel);
+
+        searchPanel.setVisible(false);
+    }
+
+    private void showSearchPanel() {
+        searchPanel.setVisible(true);
+        String selection = textArea.getSelectedText();
+        if (selection != null && !selection.isEmpty() && !selection.contains("\n")) {
+            searchField.setText(selection);
+            lastSearchValue = selection;
+        } else if (!lastSearchValue.isEmpty()) {
+            searchField.setText(lastSearchValue);
+        } else if (config != null) {
+            java.util.List<String> hist = config.getContentSearchHistory();
+            if (hist != null && !hist.isEmpty()) {
+                lastSearchValue = hist.get(0);
+                searchField.setText(lastSearchValue);
+            }
+        }
+        
+        searchField.requestFocusInWindow();
+        searchField.selectAll();
+        
+        SwingUtilities.invokeLater(() -> {
+            searchField.requestFocusInWindow();
+            searchField.selectAll();
+        });
+        
+        if (northPanel != null) {
+            northPanel.revalidate();
+            northPanel.repaint();
+        }
+        revalidate();
+    }
+
+    private void hideSearchPanel() {
+        searchPanel.setVisible(false);
+        textArea.requestFocusInWindow();
+        revalidate();
+    }
+
+    private void findNext() {
+        String text = searchField.getText();
+        if (text.isEmpty()) text = lastSearchValue;
+        if (text == null || text.isEmpty()) return;
+        lastSearchValue = text;
+        updateSearchHistory(text);
+
+        if (searchField.getText().isEmpty()) searchField.setText(text);
+
+        String content = textArea.getText();
+        int start = textArea.getCaretPosition();
+        
+        // If we have a selection that matches, start after it
+        if (textArea.getSelectionEnd() > textArea.getSelectionStart()) {
+            if (content.substring(textArea.getSelectionStart(), textArea.getSelectionEnd()).equalsIgnoreCase(text)) {
+                start = textArea.getSelectionEnd();
+            }
+        }
+
+        int idx = content.toLowerCase().indexOf(text.toLowerCase(), start);
+        if (idx == -1) {
+            // wrap around
+            idx = content.toLowerCase().indexOf(text.toLowerCase(), 0);
+        }
+
+        if (idx != -1) {
+            textArea.setSelectionStart(idx);
+            textArea.setSelectionEnd(idx + text.length());
+            textArea.getCaret().setSelectionVisible(true);
+            try {
+                Rectangle rect = textArea.modelToView2D(idx).getBounds();
+                textArea.scrollRectToVisible(rect);
+            } catch (Exception ignore) {}
+            searchStatusLabel.setText("");
+        } else {
+            searchStatusLabel.setText("Nenalezeno");
+        }
+    }
+
+    private void findPrevious() {
+        String text = searchField.getText();
+        if (text.isEmpty()) text = lastSearchValue;
+        if (text == null || text.isEmpty()) return;
+        lastSearchValue = text;
+        updateSearchHistory(text);
+
+        if (searchField.getText().isEmpty()) searchField.setText(text);
+
+        String content = textArea.getText();
+        int start = textArea.getSelectionStart() - 1;
+        if (start < 0) start = content.length() - 1;
+
+        int idx = content.toLowerCase().lastIndexOf(text.toLowerCase(), start);
+        if (idx == -1) {
+            // wrap around
+            idx = content.toLowerCase().lastIndexOf(text.toLowerCase(), content.length() - 1);
+        }
+
+        if (idx != -1) {
+            textArea.setSelectionStart(idx);
+            textArea.setSelectionEnd(idx + text.length());
+            textArea.getCaret().setSelectionVisible(true);
+            try {
+                Rectangle rect = textArea.modelToView2D(idx).getBounds();
+                textArea.scrollRectToVisible(rect);
+            } catch (Exception ignore) {}
+            searchStatusLabel.setText("");
+        } else {
+            searchStatusLabel.setText("Nenalezeno");
+        }
+    }
+
+    private void updateSearchHistory(String text) {
+        if (config == null || text == null || text.isEmpty()) return;
+        java.util.List<String> hist = new java.util.ArrayList<>(config.getContentSearchHistory());
+        hist.remove(text);
+        hist.add(0, text);
+        if (hist.size() > 20) hist = hist.subList(0, 20);
+        config.saveContentSearchHistory(hist);
+        config.saveConfig();
+    }
+
     private void initComponents() {
         setLayout(new BorderLayout());
         
+        northPanel = new JPanel();
+        northPanel.setLayout(new BoxLayout(northPanel, BoxLayout.Y_AXIS));
+        add(northPanel, BorderLayout.NORTH);
+
+        initSearchPanel();
+        northPanel.add(searchPanel);
+
         // Menu bar
         createMenuBar();
         
@@ -284,6 +446,18 @@ public class FileEditor extends JDialog {
         selectAllItem.addActionListener(e -> textArea.selectAll());
         editMenu.add(selectAllItem);
 
+        editMenu.addSeparator();
+
+        JMenuItem findItem = new JMenuItem("Hledat...");
+        findItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F, InputEvent.CTRL_DOWN_MASK));
+        findItem.addActionListener(e -> showSearchPanel());
+        editMenu.add(findItem);
+
+        JMenuItem findNextItem = new JMenuItem("Hledat další");
+        findNextItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F3, 0));
+        findNextItem.addActionListener(e -> findNext());
+        editMenu.add(findNextItem);
+
         // Update menu items state when menu is selected
         editMenu.addMenuListener(new javax.swing.event.MenuListener() {
             @Override
@@ -352,8 +526,14 @@ public class FileEditor extends JDialog {
                     JComponent.WHEN_IN_FOCUSED_WINDOW);
         }
         
-        // ESC - Zavřít
+        // ESC - Zavřít nebo skrýt hledání
-        rootPane.registerKeyboardAction(e -> closeEditor(),
+        rootPane.registerKeyboardAction(e -> {
+            if (searchPanel.isVisible()) {
+                hideSearchPanel();
+            } else {
+                closeEditor();
+            }
+        },
                 KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0),
                 JComponent.WHEN_IN_FOCUSED_WINDOW);
         
@@ -394,6 +574,19 @@ public class FileEditor extends JDialog {
         rootPane.registerKeyboardAction(e -> {
             if (undoManager.canRedo()) undoManager.redo();
         }, KeyStroke.getKeyStroke(KeyEvent.VK_Z, InputEvent.CTRL_DOWN_MASK | InputEvent.SHIFT_DOWN_MASK), JComponent.WHEN_IN_FOCUSED_WINDOW);
+
+        // Hledání
+        rootPane.registerKeyboardAction(e -> showSearchPanel(),
+                KeyStroke.getKeyStroke(KeyEvent.VK_F, InputEvent.CTRL_DOWN_MASK),
+                JComponent.WHEN_IN_FOCUSED_WINDOW);
+
+        rootPane.registerKeyboardAction(e -> findNext(),
+                KeyStroke.getKeyStroke(KeyEvent.VK_F3, 0),
+                JComponent.WHEN_IN_FOCUSED_WINDOW);
+
+        rootPane.registerKeyboardAction(e -> findPrevious(),
+                KeyStroke.getKeyStroke(KeyEvent.VK_F3, InputEvent.SHIFT_DOWN_MASK),
+                JComponent.WHEN_IN_FOCUSED_WINDOW);
     }
 
     private void setHexMode(boolean on) {
@@ -422,9 +615,10 @@ public class FileEditor extends JDialog {
             textArea.setFont(new Font("Monospaced", Font.PLAIN, textArea.getFont().getSize()));
             ensureHexControls();
             if (hexControlPanel.getParent() == null) {
-                add(hexControlPanel, BorderLayout.NORTH);
+                northPanel.add(hexControlPanel);
             }
             hexControlPanel.setVisible(true);
+            northPanel.revalidate();
         } else {
             // switch back to text view if possible
             // close RA if open
@@ -434,6 +628,10 @@ public class FileEditor extends JDialog {
             loadFile();
             textArea.setEditable(!readOnly);
             textArea.setFont(config.getEditorFont());
+            if (hexControlPanel != null) {
+                hexControlPanel.setVisible(false);
+                northPanel.revalidate();
+            }
         }
         applyAppearance();
         updateStatus();
@@ -593,8 +791,9 @@ public class FileEditor extends JDialog {
                 pageOffsetBytes = 0L;
                 loadHexPage();
                 ensureHexControls();
-                if (hexControlPanel.getParent() == null) add(hexControlPanel, BorderLayout.NORTH);
+                if (hexControlPanel.getParent() == null) northPanel.add(hexControlPanel);
                 hexControlPanel.setVisible(true);
+                northPanel.revalidate();
                 textArea.setEditable(false);
                 textArea.setFont(new Font("Monospaced", Font.PLAIN, textArea.getFont().getSize()));
                 hexMode = true;
@@ -608,8 +807,9 @@ public class FileEditor extends JDialog {
                     textArea.setEditable(false);
                     textArea.setFont(new Font("Monospaced", Font.PLAIN, textArea.getFont().getSize()));
                     ensureHexControls();
-                    if (hexControlPanel.getParent() == null) add(hexControlPanel, BorderLayout.NORTH);
+                    if (hexControlPanel.getParent() == null) northPanel.add(hexControlPanel);
                     hexControlPanel.setVisible(true);
+                    northPanel.revalidate();
                 } else if (hexMode) {
                     buildHexViewText(0L);
                 } else {