Initial import of gtk2_ardour.

git-svn-id: svn://localhost/trunk/ardour2@24 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 66 insertions, 0 deletions

diff --git a/gtk2_ardour/canvas-curve.h b/gtk2_ardour/canvas-curve.h
new file mode 100644
index 0000000000..4727c3d1d3
--- /dev/null
+++ b/gtk2_ardour/canvas-curve.h
@@ -0,0 +1,66 @@
+/* gtk-canvas-curve.h: GtkCanvas item for constrained spline curves
+ *
+ * Copyright (C) 2003 Paul Davis <pbd@op.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ */
+
+#ifndef __GTK_CANVAS_CURVE_H__
+#define __GTK_CANVAS_CURVE_H__
+
+#include <gtk-canvas/gtk-canvas-defs.h>
+#include "gtk-canvas/gtk-canvas.h"
+
+BEGIN_GTK_CANVAS_DECLS
+
+/* Wave viewer item for canvas.
+ */
+
+#define GTK_CANVAS_TYPE_CANVAS_CURVE            (gtk_canvas_curve_get_type ())
+#define GTK_CANVAS_CURVE(obj)                   (GTK_CHECK_CAST ((obj), GTK_CANVAS_TYPE_CANVAS_CURVE, GtkCanvasCurve))
+#define GTK_CANVAS_CURVE_CLASS(klass)           (GTK_CHECK_CLASS_CAST ((klass), GTK_CANVAS_TYPE_CANVAS_CURVE, GtkCanvasCurveClass))
+#define GTK_CANVAS_IS_CANVAS_CURVE(obj)         (GTK_CHECK_TYPE ((obj), GTK_CANVAS_TYPE_CANVAS_CURVE))
+#define GTK_CANVAS_IS_CANVAS_CURVE_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_CANVAS_TYPE_CANVAS_CURVE))
+
+typedef struct _GtkCanvasCurve            GtkCanvasCurve;
+typedef struct _GtkCanvasCurveClass       GtkCanvasCurveClass;
+
+struct _GtkCanvasCurve
+{
+    GtkCanvasItem item;
+    double x1, y1, x2, y2;
+    void* curve_arg;
+    float* vector;
+    size_t veclen;
+    uint32_t color;
+    
+    /* cached values set during update/used during render */
+
+    unsigned char r, b, g, a;
+    guint32 bbox_ulx, bbox_uly;
+    guint32 bbox_lrx, bbox_lry;
+};
+
+struct _GtkCanvasCurveClass {
+	GtkCanvasItemClass parent_class;
+};
+
+GtkType gtk_canvas_curve_get_type (void);
+
+END_GTK_CANVAS_DECLS
+
+#endif /* __GTK_CANVAS_CURVE_H__ */