menu: add get_component_at to get component

This is the basis for mouse focus handling.

4 files changed, 49 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;
+	}
 };
diff --git a/src/menu/container.hpp b/src/menu/container.hpp
index f9eeacd5..67bbb3c4 100644
--- a/src/menu/container.hpp
+++ b/src/menu/container.hpp
@@ -105,6 +105,8 @@ namespace usdx
 		 */
 		virtual void set_size(int width, int height);
 
+		virtual DrawableControl* get_component_at(const Point<int>& p);
+
 		/**
 		 * This signal gets emitted, if the window coordinates are changed.
 		 */
diff --git a/src/menu/drawable_control.cpp b/src/menu/drawable_control.cpp
index 47df96db..76749840 100644
--- a/src/menu/drawable_control.cpp
+++ b/src/menu/drawable_control.cpp
@@ -230,4 +230,26 @@ namespace usdx
 		boost::shared_lock<boost::shared_mutex> lock(background_mutex);
 		return background;
 	}
+
+	const Rectangle<int> DrawableControl::get_absolut_rect(void) const
+	{
+		Rectangle<int> rect(get_position(), get_size());
+
+		if (parent) {
+			Rectangle<int> parent_rect = parent->get_absolut_rect();
+			rect += Point<int>(parent_rect.get_left(),
+							   parent_rect.get_top());
+		}
+
+		return rect;
+	}
+
+	DrawableControl* DrawableControl::get_component_at(const Point<int>& p)
+	{
+		if (focusable && get_absolut_rect().is_in(p)) {
+				return this;
+		}
+
+		return NULL;
+	}
 };
diff --git a/src/menu/drawable_control.hpp b/src/menu/drawable_control.hpp
index cd1f45e0..9e15966e 100644
--- a/src/menu/drawable_control.hpp
+++ b/src/menu/drawable_control.hpp
@@ -33,6 +33,7 @@
 #include "control.hpp"
 #include "utils/point.hpp"
 #include "utils/dimension.hpp"
+#include "utils/rectangle.hpp"
 #include "background.hpp"
 
 namespace usdx
@@ -131,6 +132,9 @@ namespace usdx
 
 		void set_background(Background*);
 		const Background* get_background(void) const;
+
+		const Rectangle<int> get_absolut_rect(void) const;
+		virtual DrawableControl* get_component_at(const Point<int>& p);
 	};
 };