libswfdec/swfdec_pattern.h

   1 /* Swfdec
   2  * Copyright (C) 2006-2007 Benjamin Otte <otte@gnome.org>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301  USA
  18  */
  19
  20 #ifndef _SWFDEC_PATTERN_H_
  21 #define _SWFDEC_PATTERN_H_
  22
  23 #include <glib-object.h>
  24 #include <cairo.h>
  25 #include <libswfdec/swfdec_swf_decoder.h>
  26 #include <libswfdec/swfdec_color.h>
  27
  28 G_BEGIN_DECLS
  29
  30 typedef struct _SwfdecPattern SwfdecPattern;
  31 typedef struct _SwfdecPatternClass SwfdecPatternClass;
  32
  33 #define SWFDEC_TYPE_PATTERN                    (swfdec_pattern_get_type())
  34 #define SWFDEC_IS_PATTERN(obj)                 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), SWFDEC_TYPE_PATTERN))
  35 #define SWFDEC_IS_PATTERN_CLASS(klass)         (G_TYPE_CHECK_CLASS_TYPE ((klass), SWFDEC_TYPE_PATTERN))
  36 #define SWFDEC_PATTERN(obj)                    (G_TYPE_CHECK_INSTANCE_CAST ((obj), SWFDEC_TYPE_PATTERN, SwfdecPattern))
  37 #define SWFDEC_PATTERN_CLASS(klass)            (G_TYPE_CHECK_CLASS_CAST ((klass), SWFDEC_TYPE_PATTERN, SwfdecPatternClass))
  38 #define SWFDEC_PATTERN_GET_CLASS(obj)          (G_TYPE_INSTANCE_GET_CLASS ((obj), SWFDEC_TYPE_PATTERN, SwfdecPatternClass))
  39
  40 struct _SwfdecPattern
  41 {
  42   GObject               object;
  43
  44   cairo_matrix_t        start_transform;        /* user-to-pattern transform */
  45   cairo_matrix_t        end_transform;          /* user-to-pattern transform */
  46 };
  47
  48 struct _SwfdecPatternClass
  49 {
  50   GObjectClass          object_class;
  51
  52   /* create a cairo pattern for the given values */
  53   cairo_pattern_t *     (* get_pattern)         (SwfdecPattern *                pattern,
  54                                                  const SwfdecColorTransform *   trans,
  55                                                  guint                          ratio);
  56 };
  57
  58 GType           swfdec_pattern_get_type         (void);
  59
  60 SwfdecPattern * swfdec_pattern_new_color        (SwfdecColor                    color);
  61 SwfdecPattern * swfdec_pattern_parse            (SwfdecSwfDecoder *             dec);
  62 SwfdecPattern * swfdec_pattern_parse_rgba       (SwfdecSwfDecoder *             dec);
  63 SwfdecPattern * swfdec_pattern_parse_morph      (SwfdecSwfDecoder *             dec);
  64
  65 void            swfdec_pattern_paint            (SwfdecPattern *                pattern,
  66                                                  cairo_t *                      cr,
  67                                                  const cairo_path_t *           path,
  68                                                  const SwfdecColorTransform *   trans,
  69                                                  guint                          ratio);
  70 cairo_pattern_t *swfdec_pattern_get_pattern     (SwfdecPattern *                pattern,
  71                                                  const SwfdecColorTransform *   trans,
  72                                                  guint                          ratio);
  73 void            swfdec_pattern_get_path_extents (SwfdecPattern *                pattern,
  74                                                  const cairo_path_t *           path,
  75                                                  SwfdecRect *                   extents);
  76
  77 /* debug */
  78 char *          swfdec_pattern_to_string        (SwfdecPattern *                pattern);
  79
  80 G_END_DECLS
  81 #endif