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better scrolling in panel

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This commit is contained in:
Radek Davidek 2026-02-10 19:16:38 +01:00
parent d00d5222c5
commit abd2ba15b8
1 changed files with 19 additions and 16 deletions
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35
src/main/java/cz/kamma/kfmanager/ui/FilePanelTab.java
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@ -695,6 +695,12 @@ public class FilePanelTab extends JPanel {
JScrollPane scrollPane = new JScrollPane(fileTable); JScrollPane scrollPane = new JScrollPane(fileTable);
// Enable horizontal scrollbar when needed so BRIEF mode can scroll left-right // Enable horizontal scrollbar when needed so BRIEF mode can scroll left-right
scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
// Increase scroll speed
scrollPane.getVerticalScrollBar().setUnitIncrement(30);
scrollPane.getHorizontalScrollBar().setUnitIncrement(30);
scrollPane.getVerticalScrollBar().setBlockIncrement(200);
scrollPane.getHorizontalScrollBar().setBlockIncrement(200);
// Info panel for Quick View (Ctrl+Q) // Info panel for Quick View (Ctrl+Q)
infoTextArea = new JTextArea(); infoTextArea = new JTextArea();
@ -708,29 +714,26 @@ public class FilePanelTab extends JPanel {
cardPanel.add(scrollPane, "TABLE"); cardPanel.add(scrollPane, "TABLE");
cardPanel.add(infoScrollPane, "INFO"); cardPanel.add(infoScrollPane, "INFO");
// Implement mouse wheel navigation in BRIEF and FULL mode to match arrow key behavior // Implement mouse wheel scrolling without changing selection
fileTable.addMouseWheelListener(new java.awt.event.MouseWheelListener() { fileTable.addMouseWheelListener(new java.awt.event.MouseWheelListener() {
@Override @Override
public void mouseWheelMoved(java.awt.event.MouseWheelEvent e) { public void mouseWheelMoved(java.awt.event.MouseWheelEvent e) {
int rotation = e.getWheelRotation();
if (rotation == 0) return;
if (viewMode == ViewMode.BRIEF) { if (viewMode == ViewMode.BRIEF) {
// Navigate by one full column per wheel step // In BRIEF mode (horizontal layout), vertical wheel scrolls horizontally
handleBriefNavigation(rotation > 0, tableModel.briefRowsPerColumn); JScrollPane sp = (JScrollPane) SwingUtilities.getAncestorOfClass(JScrollPane.class, fileTable);
e.consume(); if (sp != null) {
} else if (viewMode == ViewMode.FULL) { JScrollBar hBar = sp.getHorizontalScrollBar();
// Navigate by one item at a time in FULL mode if (hBar != null && hBar.isVisible()) {
int currentRow = fileTable.getSelectedRow(); int rotation = e.getWheelRotation();
int newRow = currentRow + (rotation > 0 ? 1 : -1); // Scroll by a larger amount for significantly faster movement
int amount = rotation * hBar.getUnitIncrement() * 10;
if (newRow >= 0 && newRow < fileTable.getRowCount()) { hBar.setValue(hBar.getValue() + amount);
fileTable.setRowSelectionInterval(newRow, newRow); }
fileTable.scrollRectToVisible(fileTable.getCellRect(newRow, 0, true));
updateStatus();
} }
e.consume(); e.consume();
} }
// In FULL mode, we don't consume the event, allowing the JScrollPane
// to perform standard vertical scrolling without changing the selection.
} }
}); });