Adds API method ContainerWidget::isSectionContentVisible.

Updates demo project with example.

AdvancedDockingSystem/include/ads/ContainerWidget.h

@@ -77,6 +77,11 @@ public:
 	 */
 	bool raiseSectionContent(const SectionContent::RefPtr& sc);
 
+	/*!
+	 * Indicates whether the SectionContent <em>sc</em> is visible.
+	 */
+	bool isSectionContentVisible(const SectionContent::RefPtr& sc);
+
 	/*!
 	 * Creates a QMenu based on available SectionContents.
 	 * The caller is responsible to delete the menu.

AdvancedDockingSystem/src/ContainerWidget.cpp

@@ -278,6 +278,35 @@ bool ContainerWidget::raiseSectionContent(const SectionContent::RefPtr& sc)
 	return false;
 }
 
+bool ContainerWidget::isSectionContentVisible(const SectionContent::RefPtr& sc)
+{
+	// Search SC in floatings
+	for (int i = 0; i < _floatings.count(); ++i)
+	{
+		const bool found = _floatings.at(i)->content()->uid() == sc->uid();
+		if (!found)
+			continue;
+		return _floatings.at(i)->isVisible();
+	}
+
+	// Search SC in sections
+	for (int i = 0; i < _sections.count(); ++i)
+	{
+		SectionWidget* sw = _sections.at(i);
+		const int index = sw->indexOfContent(sc);
+		if (index < 0)
+			continue;
+		return true;
+	}
+
+	// Search SC in hidden
+	if (_hiddenSectionContents.contains(sc->uid()))
+		return false;
+
+	qWarning() << "SectionContent is not a part of this ContainerWidget:" << sc->uniqueName();
+	return false;
+}
+
 QMenu* ContainerWidget::createContextMenu() const
 {
 	// Fill map with actions (sorted by key!)

AdvancedDockingSystemDemo/src/dialogs/SectionContentListModel.cpp

@@ -6,6 +6,7 @@ SectionContentListModel::SectionContentListModel(QObject* parent) :
 	_headers.insert(UidColumn, "UID");
 	_headers.insert(UniqueNameColumn, "Unique Name");
 	_headers.insert(TitleColumn, "Title");
+	_headers.insert(VisibleColumn, "Visible");
 }
 
 SectionContentListModel::~SectionContentListModel()
@@ -66,6 +67,8 @@ QVariant SectionContentListModel::data(const QModelIndex& index, int role) const
 					return sc->uniqueName();
 				case TitleColumn:
 					return sc->title();
+				case VisibleColumn:
+					return _cw->isSectionContentVisible(sc);
 			}
 		}
 	}

AdvancedDockingSystemDemo/src/dialogs/SectionContentListModel.h

@@ -23,6 +23,7 @@ public:
 		UidColumn,
 		UniqueNameColumn,
 		TitleColumn,
+		VisibleColumn
 	};
 
 	SectionContentListModel(QObject* parent);