swfdec/swfdec_text_attributes.c

   1 /* Swfdec
   2  * Copyright (C) 2007-2008 Benjamin Otte <otte@gnome.org>
   3  *               2007 Pekka Lampila <pekka.lampila@iki.fi>
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18  * Boston, MA  02110-1301  USA
  19  */
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include "config.h"
  23 #endif
  24
  25 #include <string.h>
  26 #include "swfdec_text_attributes.h"
  27 #include "swfdec_as_context.h"
  28 #include "swfdec_as_strings.h"
  29 #include "swfdec_debug.h"
  30
  31 void
  32 swfdec_text_attributes_reset (SwfdecTextAttributes *attr)
  33 {
  34   g_free (attr->tab_stops);
  35
  36   attr->align = SWFDEC_TEXT_ALIGN_LEFT;
  37   attr->block_indent = 0;
  38   attr->bold = FALSE;
  39   attr->bullet = FALSE;
  40   attr->color = 0;
  41   attr->display = SWFDEC_TEXT_DISPLAY_BLOCK;
  42   attr->font = SWFDEC_AS_STR_Times_New_Roman;
  43   attr->indent = 0;
  44   attr->italic = FALSE;
  45   attr->kerning = FALSE;
  46   attr->leading = 0;
  47   attr->left_margin = 0;
  48   attr->letter_spacing = 0;
  49   attr->right_margin = 0;
  50   attr->size = 12;
  51   attr->tab_stops = NULL;
  52   attr->n_tab_stops = 0;
  53   attr->target = SWFDEC_AS_STR_EMPTY;
  54   attr->url = SWFDEC_AS_STR_EMPTY;
  55   attr->underline = FALSE;
  56 }
  57
  58 void
  59 swfdec_text_attributes_copy (SwfdecTextAttributes *attr, const SwfdecTextAttributes *from,
  60     guint flags)
  61 {
  62   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_ALIGN))
  63     attr->align = from->align;
  64   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_BLOCK_INDENT))
  65     attr->block_indent = from->block_indent;
  66   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_BOLD))
  67     attr->bold = from->bold;
  68   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_BULLET))
  69     attr->bullet = from->bullet;
  70   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_COLOR))
  71     attr->color = from->color;
  72   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_DISPLAY))
  73     attr->display = from->display;
  74   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_FONT))
  75     attr->font = from->font;
  76   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_INDENT))
  77     attr->indent = from->indent;
  78   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_ITALIC))
  79     attr->italic = from->italic;
  80   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_KERNING))
  81     attr->kerning = from->kerning;
  82   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_LEADING))
  83     attr->leading = from->leading;
  84   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_LEFT_MARGIN))
  85     attr->left_margin = from->left_margin;
  86   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_LETTER_SPACING))
  87     attr->letter_spacing = from->letter_spacing;
  88   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_RIGHT_MARGIN))
  89     attr->right_margin = from->right_margin;
  90   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_SIZE))
  91     attr->size = from->size;
  92   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_TAB_STOPS)) {
  93     g_free (attr->tab_stops);
  94     attr->tab_stops = g_memdup (from->tab_stops, sizeof (guint) * from->n_tab_stops);
  95     attr->n_tab_stops = from->n_tab_stops;
  96   }
  97   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_TARGET))
  98     attr->target = from->target;
  99   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_UNDERLINE))
 100     attr->underline = from->underline;
 101   if (SWFDEC_TEXT_ATTRIBUTE_IS_SET (flags, SWFDEC_TEXT_ATTRIBUTE_URL))
 102     attr->url = from->url;
 103 }
 104
 105 void
 106 swfdec_text_attributes_mark (SwfdecTextAttributes *attr)
 107 {
 108   swfdec_as_string_mark (attr->font);
 109   swfdec_as_string_mark (attr->target);
 110   swfdec_as_string_mark (attr->url);
 111 }
 112
 113 guint
 114 swfdec_text_attributes_diff (const SwfdecTextAttributes *a, const SwfdecTextAttributes *b)
 115 {
 116   guint result = 0;
 117
 118   if (a->align != b->align)
 119     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_ALIGN);
 120   if (a->block_indent != b->block_indent)
 121     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_BLOCK_INDENT);
 122   if (a->bold != b->bold)
 123     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_BOLD);
 124   if (a->bullet != b->bullet)
 125     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_BULLET);
 126   if (a->color != b->color)
 127     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_COLOR);
 128   if (a->display != b->display)
 129     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_DISPLAY);
 130   if (a->font != b->font)
 131     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_FONT);
 132   if (a->indent != b->indent)
 133     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_INDENT);
 134   if (a->italic != b->italic)
 135     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_ITALIC);
 136   if (a->kerning != b->kerning)
 137     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_KERNING);
 138   if (a->leading != b->leading)
 139     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_LEADING);
 140   if (a->left_margin != b->left_margin)
 141     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_LEFT_MARGIN);
 142   if (a->letter_spacing != b->letter_spacing)
 143     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_LETTER_SPACING);
 144   if (a->right_margin != b->right_margin)
 145     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_RIGHT_MARGIN);
 146   if (a->size != b->size)
 147     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_SIZE);
 148   if (a->n_tab_stops != b->n_tab_stops)
 149     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_TAB_STOPS);
 150   else if (a->n_tab_stops != 0 &&
 151       memcmp (a->tab_stops, b->tab_stops, sizeof (guint) & a->n_tab_stops) != 0)
 152     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_TAB_STOPS);
 153   if (a->target != b->target)
 154     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_TARGET);
 155   if (a->underline != b->underline)
 156     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_UNDERLINE);
 157   if (a->url != b->url)
 158     SWFDEC_TEXT_ATTRIBUTE_SET (result, SWFDEC_TEXT_ATTRIBUTE_URL);
 159
 160   return result;
 161 }