From 0731f12beaa0cfc0de56dc05ca3814143fd394a5 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Tue, 6 Dec 2011 21:01:38 +0000
Subject: FlowCanvas's successor is hereby dubbed Ganv.

git-svn-id: http://svn.drobilla.net/lad/trunk/ganv@3820 a436a847-0d15-0410-975c-d299462d15a1
---
 ganv/edge.h | 116 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 ganv/edge.h

(limited to 'ganv/edge.h')

diff --git a/ganv/edge.h b/ganv/edge.h
new file mode 100644
index 0000000..91708ba
--- /dev/null
+++ b/ganv/edge.h
@@ -0,0 +1,116 @@
+/* This file is part of Ganv.
+ * Copyright 2007-2011 David Robillard <http://drobilla.net>
+ *
+ * Ganv is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version.
+ *
+ * Ganv is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Ganv.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GANV_EDGE_H
+#define GANV_EDGE_H
+
+#include <libgnomecanvas/libgnomecanvas.h>
+
+#include "ganv/types.h"
+#include "ganv/node.h"
+
+G_BEGIN_DECLS
+
+#define GANV_TYPE_EDGE            (ganv_edge_get_type())
+#define GANV_EDGE(obj)            (GTK_CHECK_CAST((obj), GANV_TYPE_EDGE, GanvEdge))
+#define GANV_EDGE_CLASS(klass)    (GTK_CHECK_CLASS_CAST((klass), GANV_TYPE_EDGE, GanvEdgeClass))
+#define GANV_IS_EDGE(obj)         (GTK_CHECK_TYPE((obj), GANV_TYPE_EDGE))
+#define GANV_IS_EDGE_CLASS(klass) (GTK_CHECK_CLASS_TYPE((klass), GANV_TYPE_EDGE))
+#define GANV_EDGE_GET_CLASS(obj)  (GTK_CHECK_GET_CLASS((obj), GANV_TYPE_EDGE, GanvEdgeClass))
+
+typedef struct _GanvEdgeClass GanvEdgeClass;
+
+typedef struct {
+	double   x1, y1, x2, y2;
+	double   cx1, cy1, cx2, cy2;
+	double   handle_x, handle_y, handle_radius;
+	double   width;
+	gboolean curved;
+	gboolean arrowhead;
+} GanvEdgeCoords;
+
+struct _GanvEdge
+{
+	GnomeCanvasItem item;
+	GanvNode*       tail;
+	GanvNode*       head;
+	GanvEdgeCoords  coords;
+	GanvEdgeCoords  old_coords;
+	double          dash_length;
+	double          dash_offset;
+	guint           color;
+	gboolean        selected;
+	gboolean        highlighted;
+	gboolean        ghost;
+};
+
+struct _GanvEdgeClass {
+	GnomeCanvasItemClass parent_class;
+};
+
+GType ganv_edge_get_type(void);
+
+GanvEdge*
+ganv_edge_new(GanvCanvas* canvas,
+              GanvNode*   tail,
+              GanvNode*   head,
+              const char* first_prop_name, ...);
+
+gboolean
+ganv_edge_is_within(const GanvEdge* edge,
+                    double          x1,
+                    double          y1,
+                    double          x2,
+                    double          y2);
+
+void
+ganv_edge_update_location(GanvEdge* edge);
+
+void
+ganv_edge_select(GanvEdge* edge);
+
+void
+ganv_edge_unselect(GanvEdge* edge);
+
+void
+ganv_edge_highlight(GanvEdge* edge);
+
+void
+ganv_edge_unhighlight(GanvEdge* edge);
+
+void
+ganv_edge_remove(GanvEdge* edge);
+
+void
+ganv_edge_tick(GanvEdge* edge,
+               double    seconds);
+
+static inline GanvNode*
+ganv_edge_get_tail(const GanvEdge* edge)
+{
+	return edge->tail;
+}
+
+static inline GanvNode*
+ganv_edge_get_head(const GanvEdge* edge)
+{
+	return edge->head;
+}
+	
+G_END_DECLS
+
+#endif  /* GANV_EDGE_H */
-- 
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