FlowCanvas's successor is hereby dubbed Ganv.

git-svn-id: http://svn.drobilla.net/lad/trunk/ganv@3820 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 105 insertions, 0 deletions

diff --git a/ganv/canvas.h b/ganv/canvas.h
new file mode 100644
index 0000000..00d722d
--- /dev/null
+++ b/ganv/canvas.h
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+/* 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_CANVAS_H
+#define GANV_CANVAS_H
+
+#include <libgnomecanvas/libgnomecanvas.h>
+
+#include "ganv/types.h"
+#include "ganv/edge.h"
+
+G_BEGIN_DECLS
+
+#define GANV_TYPE_CANVAS            (ganv_canvas_get_type())
+#define GANV_CANVAS(obj)            (GTK_CHECK_CAST((obj), GANV_TYPE_CANVAS, GanvCanvas))
+#define GANV_CANVAS_CLASS(klass)    (GTK_CHECK_CLASS_CAST((klass), GANV_TYPE_CANVAS, GanvCanvasClass))
+#define GANV_IS_CANVAS(obj)         (GTK_CHECK_TYPE((obj), GANV_TYPE_CANVAS))
+#define GANV_IS_CANVAS_CLASS(klass) (GTK_CHECK_CLASS_TYPE((klass), GANV_TYPE_CANVAS))
+#define GANV_CANVAS_GET_CLASS(obj)  (GTK_CHECK_GET_CLASS((obj), GANV_TYPE_CANVAS, GanvCanvasClass))
+
+struct GanvCanvasImpl;
+
+typedef struct _GanvCanvasClass GanvCanvasClass;
+
+typedef enum {
+	GANV_VERTICAL,
+	GANV_HORIZONTAL
+} GanvDirection;
+
+struct _GanvCanvas
+{
+	GnomeCanvas            canvas;
+	struct GanvCanvasImpl* impl;
+	GanvDirection          direction;
+	gboolean               locked;
+};
+
+struct _GanvCanvasClass {
+	GnomeCanvasClass parent_class;
+};
+
+GType ganv_canvas_get_type(void);
+
+GanvCanvas* ganv_canvas_new(void);
+
+GnomeCanvasGroup*
+ganv_canvas_get_root(const GanvCanvas* canvas);
+
+/** Get the default font size in points. */
+double
+ganv_canvas_get_default_font_size(const GanvCanvas* canvas);
+
+/** Get the current font size in points. */
+double
+ganv_canvas_get_font_size(const GanvCanvas* canvas);
+
+void
+ganv_canvas_clear_selection(GanvCanvas* canvas);
+
+typedef void (*GanvEdgeFunction)(GanvEdge* edge);
+
+/**
+ * ganv_canvas_for_each_edge_from:
+ * @f: (scope call): A function to call on every edge leaving @tail.
+ */
+void
+ganv_canvas_for_each_edge_from(GanvCanvas*      canvas,
+                               const GanvNode*  tail,
+                               GanvEdgeFunction f);
+
+/**
+ * ganv_canvas_for_each_edge_to:
+ * @f: (scope call): A function to call on every edge entering @head.
+ */
+void
+ganv_canvas_for_each_edge_to(GanvCanvas*      canvas,
+                             const GanvNode*  head,
+                             GanvEdgeFunction f);
+
+/**
+ * ganv_canvas_for_each_edge_on:
+ * @f: (scope call): A function to call on every edge attached to @node.
+ */
+void
+ganv_canvas_for_each_edge_on(GanvCanvas*      canvas,
+                             const GanvNode*  node,
+                             GanvEdgeFunction f);
+
+G_END_DECLS
+
+#endif  /* GANV_CANVAS_H */