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Merge PR #1030: TabbedPaneUI: When the mouse wheel event is not in the viewport, propagate the event to the nearest parent

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Karl Tauber
2025-11-29 23:25:50 +01:00
parent 8239cdd540 b9441050b2
commit 9fdaa827b5
2 changed files with 9 additions and 1 deletions
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3
CHANGELOG.md
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@@ -11,6 +11,9 @@ FlatLaf Change Log
- TabbedPane: Added icon-only tab mode, which shows tab icons but hides tab - TabbedPane: Added icon-only tab mode, which shows tab icons but hides tab
titles. Tab titles are used in "Show Hidden Tabs" popup menu. (set client titles. Tab titles are used in "Show Hidden Tabs" popup menu. (set client
property `JTabbedPane.tabWidthMode` to `"iconOnly"`) property `JTabbedPane.tabWidthMode` to `"iconOnly"`)
- TabbedPane: In scroll tab layout, propagate mouse wheel events to ancestors.
This allows mouse wheel scrolling if JTabbedPane is inside a JScrollPane. (PR
#1030)
#### Fixed bugs #### Fixed bugs

7
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTabbedPaneUI.java
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@@ -2718,8 +2718,13 @@ debug*/
// because this listener receives mouse events for the whole tabbed pane, // because this listener receives mouse events for the whole tabbed pane,
// we have to check whether the mouse is located over the viewport // we have to check whether the mouse is located over the viewport
if( !isInViewport( e.getX(), e.getY() ) ) if( !isInViewport( e.getX(), e.getY() ) ) {
// if it is not in the viewport, retarget the event to a parent container
// which might support scrolling (e.g. a surrounding ScrollPane)
Container parent = tabPane.getParent();
parent.dispatchEvent( SwingUtilities.convertMouseEvent( tabPane, e, parent ) );
return; return;
}
lastMouseX = e.getX(); lastMouseX = e.getX();
lastMouseY = e.getY(); lastMouseY = e.getY();