menu: add get_component_at to get component

This is the basis for mouse focus handling.

1 files changed, 21 insertions, 0 deletions

diff --git a/src/menu/container.cpp b/src/menu/container.cpp
index 31155e3c..fb13d398 100644
--- a/src/menu/container.cpp
+++ b/src/menu/container.cpp
@@ -144,4 +144,25 @@ namespace usdx
 		DrawableControl::set_size(width, height);
 		recalculate_window_coords();
 	}
+
+	DrawableControl* Container::get_component_at(const Point<int>& p)
+	{
+		if (!get_absolut_rect().is_in(p))
+			return NULL;
+
+		for (std::list<DrawableControl*>::iterator next = controls.begin(), it = next++;
+			 it != controls.end(); it = next++) {
+
+			DrawableControl* c = (*it)->get_component_at(p);
+			if (c != NULL) {
+				return c;
+			}
+		}
+
+		if (frame) {
+			return frame->get_component_at(p);
+		}
+
+		return this;
+	}
 };