From 819dd242e3e4bde7195e2f9d963f5c089932923a Mon Sep 17 00:00:00 2001
From: Radek Davidek <rdavidek@trask.cz>
Date: Tue, 20 Jan 2026 17:54:47 +0100
Subject: [PATCH] better wheel scrolling

---
 .../java/cz/kamma/kfmanager/config/AppConfig.java  | 12 ------------
 .../java/cz/kamma/kfmanager/ui/FilePanelTab.java   |  7 ++-----
 .../java/cz/kamma/kfmanager/ui/SettingsDialog.java | 14 --------------
 3 files changed, 2 insertions(+), 31 deletions(-)

diff --git a/src/main/java/cz/kamma/kfmanager/config/AppConfig.java b/src/main/java/cz/kamma/kfmanager/config/AppConfig.java
index 787e0cf..abddda4 100644
--- a/src/main/java/cz/kamma/kfmanager/config/AppConfig.java
+++ b/src/main/java/cz/kamma/kfmanager/config/AppConfig.java
@@ -101,18 +101,6 @@ public class AppConfig {
     public void setActivePanel(String panel) {
         properties.setProperty("active.panel", panel);
     }
-
-    public int getBriefMouseWheelSteps() {
-        try {
-            return Integer.parseInt(properties.getProperty("brief.mousewheel.steps", "10"));
-        } catch (NumberFormatException e) {
-            return 10;
-        }
-    }
-
-    public void setBriefMouseWheelSteps(int steps) {
-        properties.setProperty("brief.mousewheel.steps", String.valueOf(steps));
-    }
     
     public String getLeftPanelPath() {
         return properties.getProperty("leftPanel.path", System.getProperty("user.home"));
diff --git a/src/main/java/cz/kamma/kfmanager/ui/FilePanelTab.java b/src/main/java/cz/kamma/kfmanager/ui/FilePanelTab.java
index b46f0f3..1df6fc4 100644
--- a/src/main/java/cz/kamma/kfmanager/ui/FilePanelTab.java
+++ b/src/main/java/cz/kamma/kfmanager/ui/FilePanelTab.java
@@ -543,11 +543,8 @@ public class FilePanelTab extends JPanel {
             if (viewMode == ViewMode.BRIEF) {
                 int rotation = e.getWheelRotation();
                 if (rotation != 0) {
-                    int steps = 10;
-                    if (persistedConfig != null) {
-                        steps = persistedConfig.getBriefMouseWheelSteps();
-                    }
-                    handleBriefNavigation(rotation > 0, steps);
+                    // Navigate by one full column per wheel step
+                    handleBriefNavigation(rotation > 0, tableModel.briefRowsPerColumn);
                     e.consume();
                 }
             }
diff --git a/src/main/java/cz/kamma/kfmanager/ui/SettingsDialog.java b/src/main/java/cz/kamma/kfmanager/ui/SettingsDialog.java
index be1b693..d19dec2 100644
--- a/src/main/java/cz/kamma/kfmanager/ui/SettingsDialog.java
+++ b/src/main/java/cz/kamma/kfmanager/ui/SettingsDialog.java
@@ -25,7 +25,6 @@ public class SettingsDialog extends JDialog {
     private final Color originalSel;
     private final Color originalMark;
     private final Color originalFolder;
-    private final int originalBriefMouseWheelSteps;
     private final Font originalGlobalFont;
     private final Font originalEditorFont;
     private final String originalExternalEditorPath;
@@ -56,7 +55,6 @@ public class SettingsDialog extends JDialog {
         this.originalSel = config.getSelectionColor();
         this.originalMark = config.getMarkedColor();
         this.originalFolder = config.getFolderColor();
-        this.originalBriefMouseWheelSteps = config.getBriefMouseWheelSteps();
         this.originalGlobalFont = config.getGlobalFont();
         this.originalEditorFont = config.getEditorFont();
         this.originalExternalEditorPath = config.getExternalEditorPath();
@@ -207,8 +205,6 @@ public class SettingsDialog extends JDialog {
             JPanel behaviorHolder = (JPanel) panels.get("Behavior");
             if (behaviorHolder != null) {
                 try {
-                    JSpinner mws = (JSpinner) behaviorHolder.getClientProperty("mouseWheelSteps");
-                    if (mws != null) config.setBriefMouseWheelSteps((Integer) mws.getValue());
                     JSpinner ari = (JSpinner) behaviorHolder.getClientProperty("autoRefreshInterval");
                     if (ari != null) config.setAutoRefreshInterval((Integer) ari.getValue());
                 } catch (Exception ignore) {}
@@ -226,7 +222,6 @@ public class SettingsDialog extends JDialog {
             config.setSelectionColor(originalSel);
             config.setMarkedColor(originalMark);
             config.setFolderColor(originalFolder);
-            config.setBriefMouseWheelSteps(originalBriefMouseWheelSteps);
             config.setGlobalFont(originalGlobalFont);
             config.setEditorFont(originalEditorFont);
             config.setExternalEditorPath(originalExternalEditorPath);
@@ -430,14 +425,6 @@ public class SettingsDialog extends JDialog {
 
         int row = 0;
 
-        // Mouse wheel steps in brief mode
-        gbc.gridx = 0; gbc.gridy = row; gbc.weightx = 0.0;
-        grid.add(new JLabel("Mouse wheel steps (Brief mode):"), gbc);
-
-        JSpinner mwSteps = new JSpinner(new SpinnerNumberModel(config.getBriefMouseWheelSteps(), 1, 100, 1));
-        gbc.gridx = 1; gbc.gridy = row++; gbc.weightx = 1.0;
-        grid.add(mwSteps, gbc);
-
         // Auto-refresh interval
         gbc.gridx = 0; gbc.gridy = row; gbc.weightx = 0.0;
         grid.add(new JLabel("Auto-refresh interval (ms):"), gbc);
@@ -447,7 +434,6 @@ public class SettingsDialog extends JDialog {
         grid.add(refreshInt, gbc);
 
         p.add(grid, BorderLayout.NORTH);
-        p.putClientProperty("mouseWheelSteps", mwSteps);
         p.putClientProperty("autoRefreshInterval", refreshInt);
         panels.put("Behavior", p);
         return p;