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Native window decorations: fixed broken maximizing window when restoring frame state at startup (issue #283)

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Karl Tauber
2021-03-25 10:32:24 +01:00
parent 8a6a0c7971
commit c24ce7c5bc
7 changed files with 48 additions and 13 deletions
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13
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatWindowsNativeWindowBorder.java
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@@ -309,6 +309,18 @@ class FlatWindowsNativeWindowBorder
this.window = window;
hwnd = installImpl( window );
// remove the OS window title bar
if( window instanceof JFrame && ((JFrame)window).getExtendedState() != 0 ) {
// In case that the frame should be maximized or minimized immediately
// when showing, then it is necessary to defer ::SetWindowPos() invocation.
// Otherwise the frame will not be maximized or minimized.
// This occurs only if frame.pack() was no invoked.
EventQueue.invokeLater( () -> {
updateFrame( hwnd );
});
} else
updateFrame( hwnd );
}
void uninstall() {
@@ -320,6 +332,7 @@ class FlatWindowsNativeWindowBorder
private native long installImpl( Window window );
private native void uninstallImpl( long hwnd );
private native void updateFrame( long hwnd );
private native void showWindow( long hwnd, int cmd );
// invoked from native code