libswfdec/swfdec_edittext_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_edittext_movie.h"
  25 #include "swfdec_as_context.h"
  26 #include "swfdec_as_strings.h"
  27 #include "swfdec_debug.h"
  28 #include "swfdec_player_internal.h"
  29
  30 G_DEFINE_TYPE (SwfdecEditTextMovie, swfdec_edit_text_movie, SWFDEC_TYPE_MOVIE)
  31
  32 static void
  33 swfdec_edit_text_movie_update_extents (SwfdecMovie *movie,
  34     SwfdecRect *extents)
  35 {
  36   swfdec_rect_union (extents, extents,
  37       &SWFDEC_GRAPHIC (SWFDEC_EDIT_TEXT_MOVIE (movie)->text)->extents);
  38 }
  39
  40 static void
  41 swfdec_edit_text_movie_render (SwfdecMovie *movie, cairo_t *cr,
  42     const SwfdecColorTransform *trans, const SwfdecRect *inval)
  43 {
  44   SwfdecEditTextMovie *text = SWFDEC_EDIT_TEXT_MOVIE (movie);
  45
  46   if (text->paragraph == NULL)
  47     return;
  48   /* clip by extents to avoid artifacts */
  49   cairo_rectangle (cr, movie->original_extents.x0, movie->original_extents.y0,
  50       movie->original_extents.x1 - movie->original_extents.x0,
  51       movie->original_extents.y1 - movie->original_extents.y0);
  52   cairo_clip (cr);
  53   swfdec_edit_text_render (text->text, cr, text->paragraph, trans, inval);
  54 }
  55
  56 static void
  57 swfdec_edit_text_movie_dispose (GObject *object)
  58 {
  59   SwfdecEditTextMovie *movie = SWFDEC_EDIT_TEXT_MOVIE (object);
  60
  61   if (movie->paragraph) {
  62     swfdec_paragraph_free (movie->paragraph);
  63     movie->paragraph = NULL;
  64   }
  65   g_free (movie->str);
  66   movie->str = NULL;
  67
  68   G_OBJECT_CLASS (swfdec_edit_text_movie_parent_class)->dispose (object);
  69 }
  70
  71 static void
  72 swfdec_edit_text_movie_iterate (SwfdecMovie *movie)
  73 {
  74   SwfdecEditTextMovie *text = SWFDEC_EDIT_TEXT_MOVIE (movie);
  75   SwfdecAsObject *parent;
  76   const char *s;
  77   SwfdecAsValue val = { 0, };
  78
  79   if (text->text->variable == NULL)
  80     return;
  81
  82   parent = SWFDEC_AS_OBJECT (movie->parent);
  83   swfdec_as_context_eval (parent->context, parent, text->text->variable, &val);
  84   if (SWFDEC_AS_VALUE_IS_UNDEFINED (&val))
  85     return;
  86
  87   s = swfdec_as_value_to_string (parent->context, &val);
  88   g_assert (s);
  89   if (text->str && g_str_equal (s, text->str))
  90     return;
  91
  92   swfdec_edit_text_movie_set_text (text, s);
  93 }
  94
  95 static void
  96 swfdec_edit_text_movie_init_movie (SwfdecMovie *movie)
  97 {
  98   SwfdecEditTextMovie *text = SWFDEC_EDIT_TEXT_MOVIE (movie);
  99   SwfdecAsObject *parent;
 100   SwfdecAsValue val = { 0, };
 101   const char *s;
 102
 103   if (text->text->variable == NULL)
 104     return;
 105
 106   parent = SWFDEC_AS_OBJECT (movie->parent);
 107   swfdec_as_context_eval (parent->context, parent, text->text->variable, &val);
 108   if (!SWFDEC_AS_VALUE_IS_UNDEFINED (&val)) {
 109     s = swfdec_as_value_to_string (parent->context, &val);
 110     g_assert (s);
 111     if (text->str && g_str_equal (s, text->str))
 112       return;
 113
 114     swfdec_edit_text_movie_set_text (text, s);
 115     return;
 116   }
 117
 118   SWFDEC_LOG ("setting variable %s to \"%s\"", text->text->variable,
 119       text->str ? text->str : "");
 120   s = text->str ? swfdec_as_context_get_string (parent->context, text->str) : SWFDEC_AS_STR_EMPTY;
 121   SWFDEC_AS_VALUE_SET_STRING (&val, s);
 122   swfdec_as_context_eval_set (parent->context, parent, text->text->variable, &val);
 123 }
 124
 125 static void
 126 swfdec_edit_text_movie_class_init (SwfdecEditTextMovieClass * g_class)
 127 {
 128   GObjectClass *object_class = G_OBJECT_CLASS (g_class);
 129   SwfdecMovieClass *movie_class = SWFDEC_MOVIE_CLASS (g_class);
 130
 131   object_class->dispose = swfdec_edit_text_movie_dispose;
 132
 133   movie_class->init_movie = swfdec_edit_text_movie_init_movie;
 134   movie_class->update_extents = swfdec_edit_text_movie_update_extents;
 135   movie_class->render = swfdec_edit_text_movie_render;
 136   movie_class->iterate_start = swfdec_edit_text_movie_iterate;
 137 }
 138
 139 static void
 140 swfdec_edit_text_movie_init (SwfdecEditTextMovie *movie)
 141 {
 142 }
 143
 144 void
 145 swfdec_edit_text_movie_set_text (SwfdecEditTextMovie *movie, const char *str)
 146 {
 147   g_return_if_fail (SWFDEC_IS_EDIT_TEXT_MOVIE (movie));
 148
 149   if (movie->paragraph) {
 150     swfdec_paragraph_free (movie->paragraph);
 151   }
 152   g_free (movie->str);
 153   movie->str = g_strdup (str);
 154   if (movie->str) {
 155     if (movie->text->html)
 156       movie->paragraph = swfdec_paragraph_html_parse (movie->text, movie->str);
 157     else
 158       movie->paragraph = swfdec_paragraph_text_parse (movie->text, movie->str);
 159   } else {
 160     movie->paragraph = NULL;
 161   }
 162   swfdec_movie_invalidate (SWFDEC_MOVIE (movie));
 163 }
 164