menu/control: controls are now owned by other controls

controls could now be owned by other controls, that are responsible
for destruction of their slaves

1 files changed, 26 insertions, 9 deletions

diff --git a/src/menu/control.cpp b/src/menu/control.cpp
index 68b5c328..f9ea2a89 100644
--- a/src/menu/control.cpp
+++ b/src/menu/control.cpp
@@ -29,26 +29,43 @@
 
 namespace usdx
 {
-	Control::Control(Control *parent)
-		: parent(parent)
+	Control::Control(Control *owner)
+		: owner(owner)
 	{
+		owner->add(this);
 	}
 
 	Control::~Control()
 	{
-		if (parent) {
-			delete parent;
-			parent = NULL;
+		for (std::list<Control*>::iterator it =
+			     slaves.begin(); it != slaves.end(); it++) {
+			delete *it;
 		}
+
+		slaves.clear();
+	}
+
+	void Control::set_owner(Control *owner)
+	{
+		if (this->owner != owner) {
+			this->owner->remove(this);
+			this->owner = owner;
+			this->owner->add(this);
+		}
+	}
+
+	Control* Control::get_owner(void) const
+	{
+		return owner;
 	}
 
-	void Control::set_parent(Control *parent)
+	void Control::add(Control *new_slave)
 	{
-		this->parent = parent;
+		slaves.push_back(new_slave);
 	}
 
-	Control* Control::get_parent(void) const
+	void Control::remove(Control *slave)
 	{
-		return parent;
+		slaves.remove(slave);
 	}
 };