Refactors directory structure and file naming.

AdvancedDockingSystem/include/ads/DropOverlay.h

@@ -0,0 +1,63 @@
+#ifndef DROP_OVERLAY_H
+#define DROP_OVERLAY_H
+
+#include <QFrame>
+#include <QRect>
+
+#include "ads/API.h"
+
+ADS_NAMESPACE_BEGIN
+
+// DropOverlay paints a translucent rectangle over another widget.
+// It can also show different types of drop area indicators.
+class DropOverlay : public QFrame
+{
+	Q_OBJECT
+
+public:
+	DropOverlay(QWidget* parent);
+	virtual ~DropOverlay();
+	DropArea cursorLocation() const;
+
+protected:
+	virtual void paintEvent(QPaintEvent *e);
+	virtual void resizeEvent(QResizeEvent* e);
+	virtual void moveEvent(QMoveEvent* e);
+
+private:
+	class DropSplitAreas* _splitAreas;
+};
+
+// AbstractDropAreas is used as base for drop area indicator widgets.
+class AbstractDropAreas : public QWidget
+{
+public:
+	AbstractDropAreas(QWidget* parent) : QWidget(parent) {}
+	virtual DropArea cursorLocation() const = 0;
+};
+
+// DropSplitAreas shows a cross with 5 different drop area possibilities.
+class DropSplitAreas : public AbstractDropAreas
+{
+	Q_OBJECT
+
+public:
+	DropSplitAreas(QWidget* parent);
+	virtual DropArea cursorLocation() const;
+
+private:
+	QWidget* _top;
+	QWidget* _right;
+	QWidget* _bottom;
+	QWidget* _left;
+	QWidget* _center;
+};
+
+
+DropArea showDropOverlay(QWidget* parent);
+void showDropOverlay(QWidget* parent, const QRect& areaRect);
+void hideDropOverlay();
+
+ADS_NAMESPACE_END
+#endif
+