pixbuf-rc-style.c

This GTK+ version 2.12.3. GTK+ is a multi-platform toolkit for creating graphical user interfaces.

/* GTK+ Pixbuf Engine
 * Copyright (C) 1998-2000 Red Hat, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Written by Owen Taylor <[e-mail]>, based on code by
 * Carsten Haitzler <[e-mail]>
 */

#include "pixbuf.h"
#include "pixbuf-style.h"
#include "pixbuf-rc-style.h"

static void      pixbuf_rc_style_init         (PixbufRcStyle      *style);
static void      pixbuf_rc_style_class_init   (PixbufRcStyleClass *klass);
static void      pixbuf_rc_style_finalize     (GObject            *object);
static guint     pixbuf_rc_style_parse        (GtkRcStyle         *rc_style,
					       GtkSettings  *settings,
					       GScanner           *scanner);
static void      pixbuf_rc_style_merge        (GtkRcStyle         *dest,
					       GtkRcStyle         *src);
static GtkStyle *pixbuf_rc_style_create_style (GtkRcStyle         *rc_style);

static void theme_image_unref (ThemeImage *data);

static const struct
  {
    gchar              *name;
    guint               token;
  }
theme_symbols[] =
{
  { "image", 		TOKEN_IMAGE  },
  { "function", 	TOKEN_FUNCTION },
  { "file", 		TOKEN_FILE },
  { "stretch", 		TOKEN_STRETCH },
  { "recolorable", 	TOKEN_RECOLORABLE },
  { "border", 		TOKEN_BORDER },
  { "detail", 		TOKEN_DETAIL },
  { "state", 		TOKEN_STATE },
  { "shadow", 		TOKEN_SHADOW },
  { "gap_side", 	TOKEN_GAP_SIDE },
  { "gap_file", 	TOKEN_GAP_FILE },
  { "gap_border", 	TOKEN_GAP_BORDER },
  { "gap_start_file", 	TOKEN_GAP_START_FILE },
  { "gap_start_border", TOKEN_GAP_START_BORDER },
  { "gap_end_file", 	TOKEN_GAP_END_FILE },
  { "gap_end_border", 	TOKEN_GAP_END_BORDER },
  { "overlay_file", 	TOKEN_OVERLAY_FILE },
  { "overlay_border", 	TOKEN_OVERLAY_BORDER },
  { "overlay_stretch", 	TOKEN_OVERLAY_STRETCH },
  { "arrow_direction", 	TOKEN_ARROW_DIRECTION },
  { "orientation", 	TOKEN_ORIENTATION },
  { "expander_style",	TOKEN_EXPANDER_STYLE },
  { "window_edge",	TOKEN_WINDOW_EDGE },

  { "HLINE", 		TOKEN_D_HLINE },
  { "VLINE",		TOKEN_D_VLINE },
  { "SHADOW",		TOKEN_D_SHADOW },
  { "POLYGON",		TOKEN_D_POLYGON },
  { "ARROW",		TOKEN_D_ARROW },
  { "DIAMOND",		TOKEN_D_DIAMOND },
  { "OVAL",		TOKEN_D_OVAL },
  { "STRING",		TOKEN_D_STRING },
  { "BOX",		TOKEN_D_BOX },
  { "FLAT_BOX",		TOKEN_D_FLAT_BOX },
  { "CHECK",		TOKEN_D_CHECK },
  { "OPTION",		TOKEN_D_OPTION },
  { "CROSS",		TOKEN_D_CROSS },
  { "RAMP",		TOKEN_D_RAMP },
  { "TAB",		TOKEN_D_TAB },
  { "SHADOW_GAP",	TOKEN_D_SHADOW_GAP },
  { "BOX_GAP",		TOKEN_D_BOX_GAP },
  { "EXTENSION",	TOKEN_D_EXTENSION },
  { "FOCUS",		TOKEN_D_FOCUS },
  { "SLIDER",		TOKEN_D_SLIDER },
  { "ENTRY",		TOKEN_D_ENTRY },
  { "HANDLE",		TOKEN_D_HANDLE },
  { "STEPPER",		TOKEN_D_STEPPER },
  { "EXPANDER",		TOKEN_D_EXPANDER },
  { "RESIZE_GRIP",	TOKEN_D_RESIZE_GRIP },

  { "TRUE",		TOKEN_TRUE },
  { "FALSE",		TOKEN_FALSE },

  { "TOP",		TOKEN_TOP },
  { "UP",		TOKEN_UP },
  { "BOTTOM",		TOKEN_BOTTOM },
  { "DOWN",		TOKEN_DOWN },
  { "LEFT",		TOKEN_LEFT },
  { "RIGHT",		TOKEN_RIGHT },

  { "NORMAL",		TOKEN_NORMAL },
  { "ACTIVE",		TOKEN_ACTIVE },
  { "PRELIGHT",		TOKEN_PRELIGHT },
  { "SELECTED",		TOKEN_SELECTED },
  { "INSENSITIVE",	TOKEN_INSENSITIVE },

  { "NONE",		TOKEN_NONE },
  { "IN",		TOKEN_IN },
  { "OUT",		TOKEN_OUT },
  { "ETCHED_IN",	TOKEN_ETCHED_IN },
  { "ETCHED_OUT",	TOKEN_ETCHED_OUT },

  { "HORIZONTAL",	TOKEN_HORIZONTAL },
  { "VERTICAL",		TOKEN_VERTICAL },

  { "COLLAPSED",	TOKEN_COLLAPSED },
  { "SEMI_COLLAPSED",	TOKEN_SEMI_COLLAPSED },
  { "SEMI_EXPANDED",	TOKEN_SEMI_EXPANDED },
  { "EXPANDED",		TOKEN_EXPANDED },

  { "NORTH_WEST",	TOKEN_NORTH_WEST },
  { "NORTH",		TOKEN_NORTH },
  { "NORTH_EAST",	TOKEN_NORTH_EAST },
  { "WEST",		TOKEN_WEST },
  { "EAST",		TOKEN_EAST },
  { "SOUTH_WEST",	TOKEN_SOUTH_WEST },
  { "SOUTH",		TOKEN_SOUTH },
  { "SOUTH_EAST",	TOKEN_SOUTH_EAST }
};

static GtkRcStyleClass *parent_class;

GType pixbuf_type_rc_style = 0;

void
pixbuf_rc_style_register_type (GTypeModule *module)
{
  static const GTypeInfo object_info =
  {
    sizeof (PixbufRcStyleClass),
    (GBaseInitFunc) NULL,
    (GBaseFinalizeFunc) NULL,
    (GClassInitFunc) pixbuf_rc_style_class_init,
    NULL,           /* class_finalize */
    NULL,           /* class_data */
    sizeof (PixbufRcStyle),
    0,              /* n_preallocs */
    (GInstanceInitFunc) pixbuf_rc_style_init,
  };
  
  pixbuf_type_rc_style = g_type_module_register_type (module,
						      GTK_TYPE_RC_STYLE,
						      "PixbufRcStyle",
						      &object_info, 0);
}

static void
pixbuf_rc_style_init (PixbufRcStyle *style)
{
}

static void
pixbuf_rc_style_class_init (PixbufRcStyleClass *klass)
{
  GtkRcStyleClass *rc_style_class = GTK_RC_STYLE_CLASS (klass);
  GObjectClass *object_class = G_OBJECT_CLASS (klass);

  parent_class = g_type_class_peek_parent (klass);

  rc_style_class->parse = pixbuf_rc_style_parse;
  rc_style_class->merge = pixbuf_rc_style_merge;
  rc_style_class->create_style = pixbuf_rc_style_create_style;
  
  object_class->finalize = pixbuf_rc_style_finalize;
}

static void
pixbuf_rc_style_finalize (GObject *object)
{
  PixbufRcStyle *rc_style = PIXBUF_RC_STYLE (object);
  
  g_list_foreach (rc_style->img_list, (GFunc) theme_image_unref, NULL);
  g_list_free (rc_style->img_list);

  G_OBJECT_CLASS (parent_class)->finalize (object);
}

static guint
theme_parse_file(GtkSettings  *settings,
		 GScanner     *scanner,
		 ThemePixbuf **theme_pb)
{
  guint token;
  gchar *pixmap;

  /* Skip 'blah_file' */
  token = g_scanner_get_next_token(scanner);

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_EQUAL_SIGN)
    return G_TOKEN_EQUAL_SIGN;

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_STRING)
    return G_TOKEN_STRING;

  if (!*theme_pb)
    *theme_pb = theme_pixbuf_new ();

  pixmap = gtk_rc_find_pixmap_in_path(settings, scanner, scanner->value.v_string);
  if (pixmap)
    {
      theme_pixbuf_set_filename (*theme_pb, pixmap);
      g_free (pixmap);
    }

  return G_TOKEN_NONE;
}

static guint
theme_parse_border (GScanner     *scanner,
		    ThemePixbuf **theme_pb)
{
  guint               token;
  gint left, right, top, bottom;

  /* Skip 'blah_border' */
  token = g_scanner_get_next_token(scanner);

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_EQUAL_SIGN)
    return G_TOKEN_EQUAL_SIGN;

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_LEFT_CURLY)
    return G_TOKEN_LEFT_CURLY;

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_INT)
    return G_TOKEN_INT;
  left = scanner->value.v_int;
  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_COMMA)
    return G_TOKEN_COMMA;

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_INT)
    return G_TOKEN_INT;
  right = scanner->value.v_int;
  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_COMMA)
    return G_TOKEN_COMMA;

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_INT)
    return G_TOKEN_INT;
  top = scanner->value.v_int;
  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_COMMA)
    return G_TOKEN_COMMA;

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_INT)
    return G_TOKEN_INT;
  bottom = scanner->value.v_int;

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_RIGHT_CURLY)
    return G_TOKEN_RIGHT_CURLY;

  if (!*theme_pb)
    *theme_pb = theme_pixbuf_new ();
  
  theme_pixbuf_set_border (*theme_pb, left, right, top, bottom);
  
  return G_TOKEN_NONE;
}

static guint
theme_parse_stretch(GScanner     *scanner,
		    ThemePixbuf **theme_pb)
{
  guint token;
  gboolean stretch;

  /* Skip 'blah_stretch' */
  token = g_scanner_get_next_token(scanner);

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_EQUAL_SIGN)
    return G_TOKEN_EQUAL_SIGN;

  token = g_scanner_get_next_token(scanner);
  if (token == TOKEN_TRUE)
    stretch = TRUE;
  else if (token == TOKEN_FALSE)
    stretch = FALSE;
  else
    return TOKEN_TRUE;

  if (!*theme_pb)
    *theme_pb = theme_pixbuf_new ();
  
  theme_pixbuf_set_stretch (*theme_pb, stretch);
  
  return G_TOKEN_NONE;
}

static guint
theme_parse_recolorable(GScanner * scanner,
			ThemeImage * data)
{
  guint               token;

  token = g_scanner_get_next_token(scanner);
  if (token != TOKEN_RECOLORABLE)
    return TOKEN_RECOLORABLE;

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_EQUAL_SIGN)
    return G_TOKEN_EQUAL_SIGN;

  token = g_scanner_get_next_token(scanner);
  if (token == TOKEN_TRUE)
    data->recolorable = 1;
  else if (token == TOKEN_FALSE)
    data->recolorable = 0;
  else
    return TOKEN_TRUE;

  return G_TOKEN_NONE;
}

static guint
theme_parse_function(GScanner * scanner,
		     ThemeImage *data)
{
  guint               token;

  token = g_scanner_get_next_token(scanner);
  if (token != TOKEN_FUNCTION)
    return TOKEN_FUNCTION;

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_EQUAL_SIGN)
    return G_TOKEN_EQUAL_SIGN;

  token = g_scanner_get_next_token(scanner);
  if ((token >= TOKEN_D_HLINE) && (token <= TOKEN_D_RESIZE_GRIP))
    data->match_data.function = token;

  return G_TOKEN_NONE;
}

static guint
theme_parse_detail(GScanner * scanner,
		   ThemeImage * data)
{
  guint               token;

  token = g_scanner_get_next_token(scanner);
  if (token != TOKEN_DETAIL)
    return TOKEN_DETAIL;

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_EQUAL_SIGN)
    return G_TOKEN_EQUAL_SIGN;

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_STRING)
    return G_TOKEN_STRING;

  g_free (data->match_data.detail);
  
  data->match_data.detail = g_strdup(scanner->value.v_string);

  return G_TOKEN_NONE;
}

static guint
theme_parse_state(GScanner * scanner,
		  ThemeImage * data)
{
  guint               token;

  token = g_scanner_get_next_token(scanner);
  if (token != TOKEN_STATE)
    return TOKEN_STATE;

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_EQUAL_SIGN)
    return G_TOKEN_EQUAL_SIGN;

  token = g_scanner_get_next_token(scanner);
  if (token == TOKEN_NORMAL)
    data->match_data.state = GTK_STATE_NORMAL;
  else if (token == TOKEN_ACTIVE)
    data->match_data.state = GTK_STATE_ACTIVE;
  else if (token == TOKEN_PRELIGHT)
    data->match_data.state = GTK_STATE_PRELIGHT;
  else if (token == TOKEN_SELECTED)
    data->match_data.state = GTK_STATE_SELECTED;
  else if (token == TOKEN_INSENSITIVE)
    data->match_data.state = GTK_STATE_INSENSITIVE;
  else
    return TOKEN_NORMAL;

  data->match_data.flags |= THEME_MATCH_STATE;
  
  return G_TOKEN_NONE;
}

static guint
theme_parse_shadow(GScanner * scanner,
		   ThemeImage * data)
{
  guint               token;

  token = g_scanner_get_next_token(scanner);
  if (token != TOKEN_SHADOW)
    return TOKEN_SHADOW;

  token = g_scanner_get_next_token(scanner);
  if (token != G_TOKEN_EQUAL_SIGN)
    return G_TOKEN_EQUAL_SIGN;

  token = g_scanner_get_next_token(scanner);
  if (token == TOKEN_NONE)
    data->match_data.shadow = GTK_SHADOW_NONE;
  else if (token == TOKEN_IN)
    data->match_data.shadow = GTK_SHADOW_IN;
  else if (token == TOKEN_OUT)
    data->match_data.shadow = GTK_SHADOW_OUT;
  else if (token == TOKEN_ETCHED_IN)
    data->match_data.shadow = GTK_SHADOW_ETCHED_IN;
  else if (token == TOKEN_ETCHED_OUT)
    data->match_data.shadow = GTK_SHADOW_ETCHED_OUT;
  else
    return TOKEN_NONE;

  data->match_data.flags |= THEME_MATCH_SHADOW;
  
  return G_TOKEN_NONE;
}

static guint
theme_parse_arrow_direction(GScanner * scanner,
			    ThemeImage * data)
{