tdf#130857 qt weld: Implement QtInstanceWidget::{get,is}_visible

Implement according to the comments in include/vcl/weld.hxx:

// return if this widget's visibility is true
virtual bool get_visible() const = 0;

// return if this widget's visibility and that of all its parents is true
virtual bool is_visible() const = 0;

Change-Id: Ic3a6193b04094331ec3818620c078269409c4fad
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/171555
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
Tested-by: Jenkins

1 files changed, 13 insertions, 2 deletions

diff --git a/vcl/qt5/QtInstanceWidget.cxx b/vcl/qt5/QtInstanceWidget.cxx
index 9999bf236ee8..602b278e8eb7 100644
--- a/vcl/qt5/QtInstanceWidget.cxx
+++ b/vcl/qt5/QtInstanceWidget.cxx
@@ -27,9 +27,20 @@ bool QtInstanceWidget::get_sensitive() const
     return m_pWidget->isEnabled();
 }
 
-bool QtInstanceWidget::get_visible() const { return true; }
+bool QtInstanceWidget::get_visible() const
+{
+    assert(m_pWidget);
+    return m_pWidget->isVisible();
+}
 
-bool QtInstanceWidget::is_visible() const { return true; }
+bool QtInstanceWidget::is_visible() const
+{
+    assert(m_pWidget);
+
+    QWidget* pTopLevel = m_pWidget->topLevelWidget();
+    assert(pTopLevel);
+    return m_pWidget->isVisibleTo(pTopLevel) && pTopLevel->isVisible();
+}
 
 void QtInstanceWidget::set_can_focus(bool) {}