66 lines
2.2 KiB
C
66 lines
2.2 KiB
C
/* libgnomecanvas/gnome-canvas-curve.h: GnomeCanvas item for constrained spline curves
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*
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* Copyright (C) 2003 Paul Davis <pbd@op.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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*/
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#ifndef __GNOME_CANVAS_CURVE_H__
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#define __GNOME_CANVAS_CURVE_H__
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#include <libgnomecanvas/libgnomecanvas.h>
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G_BEGIN_DECLS
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/* Wave viewer item for canvas.
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*/
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#define GNOME_CANVAS_TYPE_CANVAS_CURVE (gnome_canvas_curve_get_type ())
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#define GNOME_CANVAS_CURVE(obj) (GTK_CHECK_CAST ((obj), GNOME_CANVAS_TYPE_CANVAS_CURVE, GnomeCanvasCurve))
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#define GNOME_CANVAS_CURVE_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GNOME_CANVAS_TYPE_CANVAS_CURVE, GnomeCanvasCurveClass))
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#define GNOME_CANVAS_IS_CANVAS_CURVE(obj) (GTK_CHECK_TYPE ((obj), GNOME_CANVAS_TYPE_CANVAS_CURVE))
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#define GNOME_CANVAS_IS_CANVAS_CURVE_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GNOME_CANVAS_TYPE_CANVAS_CURVE))
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typedef struct _GnomeCanvasCurve GnomeCanvasCurve;
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typedef struct _GnomeCanvasCurveClass GnomeCanvasCurveClass;
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struct _GnomeCanvasCurve
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{
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GnomeCanvasItem item;
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double x1, y1, x2, y2;
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void* curve_arg;
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float* vector;
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size_t veclen;
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uint32_t color;
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/* cached values set during update/used during render */
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unsigned char r, b, g, a;
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guint32 bbox_ulx, bbox_uly;
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guint32 bbox_lrx, bbox_lry;
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};
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struct _GnomeCanvasCurveClass {
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GnomeCanvasItemClass parent_class;
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};
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GtkType gnome_canvas_curve_get_type (void);
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G_END_DECLS
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#endif /* __GNOME_CANVAS_CURVE_H__ */
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