sp-gradient.h

#ifndef __SP_GRADIENT_H__
#define __SP_GRADIENT_H__

/** \file
 * SVG <stop> <linearGradient> and <radialGradient> implementation
 *
 * Authors:
 *   Lauris Kaplinski <lauris@kaplinski.com>
 *   Johan Engelen <j.b.c.engelen@ewi.utwente.nl>
 *
 * Copyright (C) 2007 Johan Engelen
 * Copyright (C) 1999-2002 Lauris Kaplinski
 * Copyright (C) 2000-2001 Ximian, Inc.
 *
 * Released under GNU GPL, read the file 'COPYING' for more information
 */

#include <gdk/gdktypes.h>
#include "libnr/nr-matrix.h"
#include "sp-paint-server.h"
#include "sp-gradient-spread.h"
#include "sp-gradient-units.h"
#include "sp-gradient-vector.h"

#include <sigc++/connection.h>

struct SPGradientReference;

typedef enum {
      SP_GRADIENT_TYPE_UNKNOWN,
      SP_GRADIENT_TYPE_LINEAR,
      SP_GRADIENT_TYPE_RADIAL
} SPGradientType;

typedef enum {
      SP_GRADIENT_STATE_UNKNOWN,
      SP_GRADIENT_STATE_VECTOR,
      SP_GRADIENT_STATE_PRIVATE
} SPGradientState;

typedef enum {
    POINT_LG_BEGIN =0, //start enum at 0 (for indexing into gr_knot_shapes array for example)
    POINT_LG_END,
    POINT_LG_MID,
    POINT_RG_CENTER,
    POINT_RG_R1,
    POINT_RG_R2,
    POINT_RG_FOCUS,
    POINT_RG_MID1,
    POINT_RG_MID2,
    // insert new point types here.
    
    POINT_G_INVALID
} GrPointType;

/**
 * Gradient
 *
 * Implement spread, stops list
 * \todo fixme: Implement more here (Lauris)
 */
00062 struct SPGradient : public SPPaintServer {
      /** Reference (href) */
00064       SPGradientReference *ref;
      /** State in Inkscape gradient system */
00066       guint state : 2;
      /** gradientUnits attribute */
00068       SPGradientUnits units;
      guint units_set : 1;
      /** gradientTransform attribute */
00071       NR::Matrix gradientTransform;
      guint gradientTransform_set : 1;
      /** spreadMethod attribute */
00074       SPGradientSpread spread;
      guint spread_set : 1;
      /** Gradient stops */
00077       guint has_stops : 1;
      /** Composed vector */
00079       SPGradientVector vector;
      /** Rendered color array (4 * 1024 bytes) */
00081       guchar *color;

        sigc::connection modified_connection;
};

/**
 * The SPGradient vtable.
 */
00089 struct SPGradientClass {
      SPPaintServerClass parent_class;
};


#include "sp-gradient-fns.h"

#endif /* !__SP_GRADIENT_H__ */

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