From 4b806a473d03faa24f00fad5e29721622236ed43 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Wed, 14 Dec 2011 00:47:57 +0000
Subject: Custom module point and port draw handlers.

git-svn-id: http://svn.drobilla.net/lad/trunk/ganv@3872 a436a847-0d15-0410-975c-d299462d15a1
---
 src/Canvas.cpp |  2 +-
 src/box.c      | 17 ++++-------------
 src/module.c   | 38 ++++++++++++++++++++++++++++++++++++++
 src/port.c     | 18 ++++++++++++++++++
 4 files changed, 61 insertions(+), 14 deletions(-)

diff --git a/src/Canvas.cpp b/src/Canvas.cpp
index 4f081fa..768cecb 100644
--- a/src/Canvas.cpp
+++ b/src/Canvas.cpp
@@ -1080,7 +1080,7 @@ GanvCanvasImpl::port_event(GdkEvent* event, GanvPort* port)
 	static double control_start_y     = 0;
 	static float  control_start_value = 0;
 
-switch (event->type) {
+	switch (event->type) {
 	case GDK_BUTTON_PRESS:
 		if (event->button.button == 1) {
 			GanvModule* const module = ganv_port_get_module(port);
diff --git a/src/box.c b/src/box.c
index 2390c9d..194a126 100644
--- a/src/box.c
+++ b/src/box.c
@@ -299,26 +299,19 @@ ganv_box_point(GanvItem* item,
 
 	// Point is inside the box (distance 0)
 	if ((x >= x1) && (y >= y1) && (x <= x2) && (y <= y2)) {
-		GanvItemClass* item_class = GANV_ITEM_CLASS(parent_class);
-		double d = item_class->point(item, x, y, cx, cy, actual_item);
-		if (*actual_item) {
-			return d;
-		} else {
-			*actual_item = item;
-			return 0.0;
-		}
+		*actual_item = item;
+		return 0.0;
 	}
 
 	// Point is outside the box
-	double dx, dy;
+	double dx = 0.0;
+	double dy = 0.0;
 
 	// Find horizontal distance to nearest edge
 	if (x < x1) {
 		dx = x1 - x;
 	} else if (x > x2) {
 		dx = x - x2;
-	} else {
-		dx = 0.0;
 	}
 
 	// Find vertical distance to nearest edge
@@ -326,8 +319,6 @@ ganv_box_point(GanvItem* item,
 		dy = y1 - y;
 	} else if (y > y2) {
 		dy = y - y2;
-	} else {
-		dy = 0.0;
 	}
 
 	return sqrt((dx * dx) + (dy * dy));
diff --git a/src/module.c b/src/module.c
index d3ae675..3bfd378 100644
--- a/src/module.c
+++ b/src/module.c
@@ -569,6 +569,43 @@ ganv_module_move(GanvNode* node,
 	}
 }
 
+static double
+ganv_module_point(GanvItem* item,
+                  double x, double y,
+                  int cx, int cy,
+                  GanvItem** actual_item)
+{
+	GanvModule* module = GANV_MODULE(item);
+
+	double d = GANV_ITEM_CLASS(parent_class)->point(
+		item, x, y, cx, cy, actual_item);
+
+	if (!*actual_item) {
+		// Point is not inside module at all, no point in checking children
+		return d;
+	}
+
+	FOREACH_PORT(module->impl->ports, p) {
+		GanvItem* const port = GANV_ITEM(*p);
+
+		*actual_item = NULL;
+		d = GANV_ITEM_GET_CLASS(port)->point(
+			port,
+			x - port->x, y - port->y,
+			cx, cy,
+			actual_item);
+
+		if (*actual_item) {
+			// Point is inside a port
+			return d;
+		}
+	}
+
+	// Point is inside module, but not a child port
+	*actual_item = item;
+	return 0.0;
+}
+
 static void
 ganv_module_class_init(GanvModuleClass* class)
 {
@@ -588,6 +625,7 @@ ganv_module_class_init(GanvModuleClass* class)
 
 	item_class->update = ganv_module_update;
 	item_class->draw   = ganv_module_draw;
+	item_class->point  = ganv_module_point;
 
 	node_class->move    = ganv_module_move;
 	node_class->move_to = ganv_module_move_to;
diff --git a/src/port.c b/src/port.c
index da750aa..674be73 100644
--- a/src/port.c
+++ b/src/port.c
@@ -110,6 +110,23 @@ ganv_port_get_property(GObject*    object,
 	}
 }
 
+static void
+ganv_port_draw(GanvItem* item,
+               cairo_t* cr,
+               int cx, int cy,
+               int width, int height)
+{
+	GanvPort* port = GANV_PORT(item);
+
+	GanvItemClass* item_class = GANV_ITEM_CLASS(parent_class);
+	item_class->draw(item, cr, cx, cy, width, height);
+
+	if (port->impl->control) {
+		GanvItem* const rect = GANV_ITEM(port->impl->control->rect);
+		GANV_ITEM_GET_CLASS(rect)->draw(rect, cr, cx, cy, width, height);
+	}
+}
+
 static void
 ganv_port_tail_vector(const GanvNode* self,
                       const GanvNode* head,
@@ -238,6 +255,7 @@ ganv_port_class_init(GanvPortClass* class)
 	object_class->destroy = ganv_port_destroy;
 
 	item_class->event = event;
+	item_class->draw  = ganv_port_draw;
 
 	node_class->tail_vector = ganv_port_tail_vector;
 	node_class->head_vector = ganv_port_head_vector;
-- 
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