From ceccd56f0f8c52512ca5e65247f1023eef9cc2aa Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Thu, 19 Dec 2013 03:42:30 +0000
Subject: FDGL: Improve flow-directed layout. Allow apps to specify nodes as
 sources to improve layout.

git-svn-id: http://svn.drobilla.net/lad/trunk/ganv@5186 a436a847-0d15-0410-975c-d299462d15a1
---
 ganv/Node.hpp | 1 +
 ganv/canvas.h | 6 ++++++
 ganv/node.h   | 8 ++++++++
 3 files changed, 15 insertions(+)

(limited to 'ganv')

diff --git a/ganv/Node.hpp b/ganv/Node.hpp
index 4b219e6..4de2d35 100644
--- a/ganv/Node.hpp
+++ b/ganv/Node.hpp
@@ -53,6 +53,7 @@ public:
 	RW_PROPERTY(guint, border_color)
 	RW_PROPERTY(gboolean, can_tail)
 	RW_PROPERTY(gboolean, can_head)
+	RW_PROPERTY(gboolean, is_source)
 	RW_PROPERTY(gboolean, selected)
 	RW_PROPERTY(gboolean, highlighted)
 	RW_PROPERTY(gboolean, draggable)
diff --git a/ganv/canvas.h b/ganv/canvas.h
index b569eeb..37fdc5d 100644
--- a/ganv/canvas.h
+++ b/ganv/canvas.h
@@ -53,6 +53,9 @@ struct _GanvCanvas {
 	double                 width;
 	double                 height;
 	gboolean               locked;
+#ifdef GANV_FDGL
+	guint                  layout_idle_id;
+#endif
 };
 
 struct _GanvCanvasClass {
@@ -70,6 +73,9 @@ GanvCanvas* ganv_canvas_new(double width, double height);
 void
 ganv_canvas_resize(GanvCanvas* canvas, double width, double height);
 
+void
+ganv_canvas_contents_changed(GanvCanvas* canvas);
+
 /**
  * ganv_canvas_get_root:
  *
diff --git a/ganv/node.h b/ganv/node.h
index c17dc60..6823086 100644
--- a/ganv/node.h
+++ b/ganv/node.h
@@ -96,6 +96,14 @@ ganv_node_can_tail(const GanvNode* node);
 gboolean
 ganv_node_can_head(const GanvNode* node);
 
+/**
+ * ganv_node_set_is_source:
+ *
+ * Flag a node as a source.  This information is used to influence layout.
+ */
+void
+ganv_node_set_is_source(const GanvNode* node, gboolean is_source);
+
 /**
  * ganv_node_is_within:
  *
-- 
cgit v1.2.1