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Popup: fixed scrolling popup painting issue on Windows 10 when a glass pane is visible and frame is maximized (issue #1071)

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Karl Tauber
2025-12-30 13:36:09 +01:00
parent 3f0b5d5a0e
commit 0e3cb95791
3 changed files with 26 additions and 9 deletions
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27
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatPopupFactory.java
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@@ -108,10 +108,8 @@ public class FlatPopupFactory
}
}
boolean forceHeavyWeight = isOptionEnabled( owner, contents, FlatClientProperties.POPUP_FORCE_HEAVY_WEIGHT, "Popup.forceHeavyWeight" );
if( !isOptionEnabled( owner, contents, FlatClientProperties.POPUP_DROP_SHADOW_PAINTED, "Popup.dropShadowPainted" ) || SystemInfo.isProjector || SystemInfo.isWebswing )
return new NonFlashingPopup( getPopupForScreenOfOwner( owner, contents, x, y, forceHeavyWeight ), owner, contents );
return new NonFlashingPopup( getPopupForScreenOfOwner( owner, contents, x, y, isForceHeavyWeight( owner, contents, x, y ) ), owner, contents );
// macOS and Linux adds drop shadow to heavy weight popups
if( SystemInfo.isMacOS || SystemInfo.isLinux ) {
@@ -131,12 +129,8 @@ public class FlatPopupFactory
return popup;
}
// check whether popup overlaps a heavy weight component
if( !forceHeavyWeight && overlapsHeavyWeightComponent( owner, contents, x, y ) )
forceHeavyWeight = true;
// create drop shadow popup
Popup popupForScreenOfOwner = getPopupForScreenOfOwner( owner, contents, x, y, forceHeavyWeight );
Popup popupForScreenOfOwner = getPopupForScreenOfOwner( owner, contents, x, y, isForceHeavyWeight( owner, contents, x, y ) );
GraphicsConfiguration gc = (owner != null) ? owner.getGraphicsConfiguration() : null;
return (gc != null && gc.isTranslucencyCapable())
? new DropShadowPopup( popupForScreenOfOwner, owner, contents )
@@ -226,6 +220,11 @@ public class FlatPopupFactory
}
}
private static boolean isForceHeavyWeight( Component owner, Component contents, int x, int y ) {
boolean forceHeavyWeight = isOptionEnabled( owner, contents, FlatClientProperties.POPUP_FORCE_HEAVY_WEIGHT, "Popup.forceHeavyWeight" );
return forceHeavyWeight || hasVisibleGlassPane( owner ) || overlapsHeavyWeightComponent( owner, contents, x, y );
}
private static boolean isOptionEnabled( Component owner, Component contents, String clientKey, String uiKey ) {
Object value = getOption( owner, contents, clientKey, uiKey );
return (value instanceof Boolean) ? (Boolean) value : false;
@@ -469,6 +468,18 @@ public class FlatPopupFactory
//---- fixes --------------------------------------------------------------
private static boolean hasVisibleGlassPane( Component owner ) {
if( owner == null )
return false;
Window window = SwingUtilities.windowForComponent( owner );
if( !(window instanceof RootPaneContainer) )
return false;
Component glassPane = ((RootPaneContainer)window).getGlassPane();
return (glassPane != null && glassPane.isVisible());
}
private static boolean overlapsHeavyWeightComponent( Component owner, Component contents, int x, int y ) {
if( owner == null )
return false;