swfdec/swfdec_morph_movie.c

   1 /* Swfdec
   2  * Copyright (C) 2006 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 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "swfdec_morph_movie.h"
  25 #include "swfdec_debug.h"
  26 #include "swfdec_draw.h"
  27 #include "swfdec_player_internal.h"
  28 #include "swfdec_stroke.h"
  29
  30 G_DEFINE_TYPE (SwfdecMorphMovie, swfdec_morph_movie, SWFDEC_TYPE_MOVIE)
  31
  32 static void
  33 swfdec_morph_movie_update_extents (SwfdecMovie *movie,
  34     SwfdecRect *extents)
  35 {
  36   guint ratio = movie->original_ratio;
  37   SwfdecMorphShape *morph = SWFDEC_MORPH_SHAPE (movie->graphic);
  38   SwfdecGraphic *graphic = SWFDEC_GRAPHIC (morph);
  39   extents->x0 = ((65535 - ratio) * graphic->extents.x0 + ratio * morph->end_extents.x0) / 65535;
  40   extents->x1 = ((65535 - ratio) * graphic->extents.x1 + ratio * morph->end_extents.x1) / 65535;
  41   extents->y0 = ((65535 - ratio) * graphic->extents.y0 + ratio * morph->end_extents.y0) / 65535;
  42   extents->y1 = ((65535 - ratio) * graphic->extents.y1 + ratio * morph->end_extents.y1) / 65535;
  43 }
  44
  45 static void
  46 swfdec_morph_movie_set_ratio (SwfdecMovie *movie)
  47 {
  48   SwfdecMorphMovie *mmovie = SWFDEC_MORPH_MOVIE (movie);
  49
  50   swfdec_movie_invalidate_next (movie);
  51   g_slist_foreach (mmovie->draws, (GFunc) g_object_unref, NULL);
  52   g_slist_free (mmovie->draws);
  53   mmovie->draws = NULL;
  54   swfdec_movie_queue_update (movie, SWFDEC_MOVIE_INVALID_EXTENTS);
  55 }
  56
  57 static void
  58 swfdec_morph_movie_create_morphs (SwfdecMorphMovie *mmovie)
  59 {
  60   SwfdecShape *shape = SWFDEC_SHAPE (SWFDEC_MOVIE (mmovie)->graphic);
  61   guint ratio = SWFDEC_MOVIE (mmovie)->original_ratio;
  62   GSList *walk;
  63
  64   for (walk = shape->draws; walk; walk = walk->next) {
  65     mmovie->draws = g_slist_prepend (mmovie->draws, swfdec_draw_morph (walk->data, ratio));
  66   }
  67   mmovie->draws = g_slist_reverse (mmovie->draws);
  68 }
  69
  70 static void
  71 swfdec_morph_movie_render (SwfdecMovie *movie, cairo_t *cr,
  72     const SwfdecColorTransform *trans)
  73 {
  74   SwfdecMorphMovie *morph = SWFDEC_MORPH_MOVIE (movie);
  75   SwfdecRect inval;
  76   GSList *walk;
  77
  78   if (morph->draws == NULL)
  79     swfdec_morph_movie_create_morphs (morph);
  80
  81   cairo_clip_extents (cr, &inval.x0, &inval.y0, &inval.x1, &inval.y1);
  82
  83   for (walk = morph->draws; walk; walk = walk->next) {
  84     SwfdecDraw *draw = walk->data;
  85
  86     if (!swfdec_rect_intersect (NULL, &draw->extents, &inval))
  87       continue;
  88
  89     swfdec_draw_paint (draw, cr, trans);
  90   }
  91 }
  92
  93 static void
  94 swfdec_morph_movie_invalidate (SwfdecMovie *movie, const cairo_matrix_t *matrix, gboolean last)
  95 {
  96   SwfdecRect rect;
  97
  98   swfdec_rect_transform (&rect, &movie->original_extents, matrix);
  99   swfdec_player_invalidate (SWFDEC_PLAYER (swfdec_gc_object_get_context (movie)),
 100       movie, &rect);
 101 }
 102
 103 static void
 104 swfdec_morph_movie_dispose (GObject *object)
 105 {
 106   SwfdecMorphMovie *morph = SWFDEC_MORPH_MOVIE (object);
 107
 108   g_slist_foreach (morph->draws, (GFunc) g_object_unref, NULL);
 109   g_slist_free (morph->draws);
 110   morph->draws = NULL;
 111
 112   G_OBJECT_CLASS (swfdec_morph_movie_parent_class)->dispose (object);
 113 }
 114
 115 static void
 116 swfdec_morph_movie_class_init (SwfdecMorphMovieClass * g_class)
 117 {
 118   GObjectClass *object_class = G_OBJECT_CLASS (g_class);
 119   SwfdecMovieClass *movie_class = SWFDEC_MOVIE_CLASS (g_class);
 120
 121   object_class->dispose = swfdec_morph_movie_dispose;
 122
 123   movie_class->update_extents = swfdec_morph_movie_update_extents;
 124   movie_class->render = swfdec_morph_movie_render;
 125   movie_class->invalidate = swfdec_morph_movie_invalidate;
 126   movie_class->set_ratio = swfdec_morph_movie_set_ratio;
 127   /* FIXME */
 128   //movie_class->handle_mouse = swfdec_morph_movie_handle_mouse;
 129 }
 130
 131 static void
 132 swfdec_morph_movie_init (SwfdecMorphMovie *morph)
 133 {
 134 }
 135