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added new function gimp_config_serialize_to_fd() for the sake of 

2003-06-24  Sven Neumann  <sven@gimp.org>

	* app/config/gimpconfig.[ch]: added new function
	gimp_config_serialize_to_fd() for the sake of completeness and
	since it's a nice way to generate debugging output.

	* app/text/Makefile.am
	* app/text/gimptext-xlfd.[ch]: new files with routines to handle X
	Logical Font Descriptions in an attempt to improve backwards
	compatibility.

	* app/text/gimptext-parasite.[ch]
	* app/xcf/xcf-load.c: promote layers with GDynText parasite to
	GimpTextLayer. Work in progress, we need to improve font matching.
This commit is contained in:
Sven Neumann 2003-06-24 19:45:55 +00:00 committed by Sven Neumann
parent b5c689a29a
commit 7a6a908ad2
11 changed files with 424 additions and 5 deletions
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15
ChangeLog
View File

@ -1,3 +1,18 @@
2003-06-24 Sven Neumann <sven@gimp.org>
* app/config/gimpconfig.[ch]: added new function
gimp_config_serialize_to_fd() for the sake of completeness and
since it's a nice way to generate debugging output.
* app/text/Makefile.am
* app/text/gimptext-xlfd.[ch]: new files with routines to handle X
Logical Font Descriptions in an attempt to improve backwards
compatibility.
* app/text/gimptext-parasite.[ch]
* app/xcf/xcf-load.c: promote layers with GDynText parasite to
GimpTextLayer. Work in progress, we need to improve font matching.
2003-06-24 Michael Natterer <mitch@gimp.org>
* app/widgets/gimpcontainertreeview.c

23
app/config/gimpconfig.c
View File

@ -213,6 +213,29 @@ gimp_config_serialize_to_file (GObject *object,
return gimp_config_writer_finish (writer, footer, error);
}
gboolean
gimp_config_serialize_to_fd (GObject *object,
gint fd,
gpointer data)
{
GimpConfigInterface *gimp_config_iface;
GimpConfigWriter *writer;
g_return_val_if_fail (G_IS_OBJECT (object), FALSE);
g_return_val_if_fail (fd > 0, FALSE);
gimp_config_iface = GIMP_GET_CONFIG_INTERFACE (object);
g_return_val_if_fail (gimp_config_iface != NULL, FALSE);
writer = gimp_config_writer_new_fd (fd);
if (!writer)
return FALSE;
gimp_config_iface->serialize (object, writer, data);
return gimp_config_writer_finish (writer, NULL, NULL);
}
/**
* gimp_config_serialize_to_string:
* @object: a #GObject that implements the #GimpConfigInterface.

3
app/config/gimpconfig.h
View File

@ -77,6 +77,9 @@ gboolean gimp_config_serialize_to_file (GObject *object,
const gchar *footer,
gpointer data,
GError **error);
gboolean gimp_config_serialize_to_fd (GObject *object,
gint fd,
gpointer data);
gchar * gimp_config_serialize_to_string (GObject *object,
gpointer data);
gboolean gimp_config_deserialize_file (GObject *object,

2
app/text/Makefile.am
View File

@ -27,6 +27,8 @@ libapptext_a_sources = \
gimptext-compat.h \
gimptext-parasite.c \
gimptext-parasite.h \
gimptext-xlfd.c \
gimptext-xlfd.h \
gimptextlayer.c \
gimptextlayer.h \
gimptextlayout.c \

124
app/text/gimptext-parasite.c
View File

@ -22,10 +22,12 @@
#include "config.h"
#include <string.h>
#include <stdlib.h>
#include <glib-object.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpcolor/gimpcolor.h"
#include "text/text-types.h"
@ -33,7 +35,20 @@
#include "gimptext.h"
#include "gimptext-parasite.h"
#include "gimptext-xlfd.h"
#include "gimp-intl.h"
/****************************************/
/* The native GimpTextLayer parasite. */
/****************************************/
const gchar *
gimp_text_parasite_name (void)
{
return "gimp-text-layer";
}
GimpParasite *
gimp_text_to_parasite (const GimpText *text)
@ -83,8 +98,113 @@ gimp_text_from_parasite (const GimpParasite *parasite)
return text;
}
/****************************************************************/
/* Compatibility to plug-in GDynText 1.4.4 and later versions */
/* GDynText was written by Marco Lamberto <lm@geocities.com> */
/****************************************************************/
const gchar *
gimp_text_parasite_name (void)
gimp_text_gdyntext_parasite_name (void)
{
return "gimp-text-layer";
return "plug_in_gdyntext/data";
}
enum
{
TEXT = 0,
ANTIALIAS = 1,
ALIGNMENT = 2,
ROTATION = 3,
LINE_SPACING = 4,
COLOR = 5,
LAYER_ALIGNMENT = 6,
XLFD = 7,
NUM_PARAMS
};
GimpText *
gimp_text_from_gdyntext_parasite (const GimpParasite *parasite)
{
GimpText *retval = NULL;
GimpTextJustification justify;
const gchar *str;
gchar *text = NULL;
gchar *font = NULL;
gchar **params;
gboolean antialias;
gdouble spacing;
gdouble size;
GimpUnit unit;
GimpRGB rgb;
glong color;
gint i;
g_return_val_if_fail (parasite != NULL, NULL);
g_return_val_if_fail (strcmp (gimp_parasite_name (parasite),
gimp_text_gdyntext_parasite_name ()) == 0,
NULL);
str = gimp_parasite_data (parasite);
g_return_val_if_fail (str != NULL, NULL);
if (strncmp (str, "GDT10{", 6) != 0) /* magic value */
return NULL;
params = g_strsplit (str + 6, "}{", -1);
/* first check that we have the required number of parameters */
for (i = 0; i < NUM_PARAMS; i++)
if (!params[i])
goto cleanup;
text = g_strcompress (params[TEXT]);
if (! g_utf8_validate (text, -1, NULL))
{
g_message (_("Can not convert GDynText layer because it "
"contains text that is not UTF-8 encoded."));
goto cleanup;
}
antialias = atoi (params[ANTIALIAS]) ? TRUE : FALSE;
switch (atoi (params[ALIGNMENT]))
{
default:
case 0: justify = GIMP_TEXT_JUSTIFY_LEFT; break;
case 1: justify = GIMP_TEXT_JUSTIFY_CENTER; break;
case 2: justify = GIMP_TEXT_JUSTIFY_RIGHT; break;
}
spacing = atof (params[LINE_SPACING]);
color = strtol (params[COLOR], NULL, 16);
gimp_rgba_set_uchar (&rgb, color >> 16, color >> 8, color, 255);
font = gimp_text_font_name_from_xlfd (params[XLFD]);
retval = g_object_new (GIMP_TYPE_TEXT,
"text", text,
"antialias", antialias,
"justify", justify,
"line-spacing", spacing,
"color", &rgb,
"font", font,
NULL);
if (gimp_text_font_size_from_xlfd (params[XLFD], &size, &unit))
{
g_object_set (retval,
"font-size", size,
"font-size-unit", unit,
NULL);
}
cleanup:
g_free (font);
g_free (text);
g_strfreev (params);
return retval;
}

4
app/text/gimptext-parasite.h
View File

@ -23,10 +23,12 @@
#define __GIMP_TEXT_PARASITE_H__
const gchar * gimp_text_parasite_name (void) G_GNUC_CONST;
GimpParasite * gimp_text_to_parasite (const GimpText *text);
GimpText * gimp_text_from_parasite (const GimpParasite *parasite);
const gchar * gimp_text_parasite_name (void) G_GNUC_CONST;
const gchar * gimp_text_gdyntext_parasite_name (void) G_GNUC_CONST;
GimpText * gimp_text_from_gdyntext_parasite (const GimpParasite *parasite);
#endif /* __GIMP_TEXT_PARASITE_H__ */

171
app/text/gimptext-xlfd.c Normal file
View File

@ -0,0 +1,171 @@
/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* GimpText
* Copyright (C) 2002-2003 Sven Neumann <sven@gimp.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <glib-object.h>
#include "libgimpbase/gimpbase.h"
#include "gimptext-xlfd.h"
/* Most of this code was copied from pangox-fontmap.c */
#define XLFD_MAX_FIELD_LEN 64
/* These are the field numbers in the X Logical Font Description fontnames,
e.g. -adobe-courier-bold-o-normal--25-180-100-100-m-150-iso8859-1 */
enum
{
XLFD_FOUNDRY = 0,
XLFD_FAMILY = 1,
XLFD_WEIGHT = 2,
XLFD_SLANT = 3,
XLFD_SET_WIDTH = 4,
XLFD_ADD_STYLE = 5,
XLFD_PIXELS = 6,
XLFD_POINTS = 7,
XLFD_RESOLUTION_X = 8,
XLFD_RESOLUTION_Y = 9,
XLFD_SPACING = 10,
XLFD_AVERAGE_WIDTH = 11,
XLFD_CHARSET = 12,
XLFD_NUM_FIELDS
};
/** gimp_text_get_xlfd_field()
* @fontname: an XLFD fontname
* @field_num: field index
* @buffer: buffer of at least XLFD_MAX_FIELD_LEN chars
*
* Fills the buffer with the specified field from the X Logical Font
* Description name, and returns it. Note: For the charset field, we
* also return the encoding, e.g. 'iso8859-1'.
*
* This function is basically copied from pangox-fontmap.c.
*
* Returns: a pointer to the filled buffer or %NULL if fontname is
* %NULL or the field is longer than XFLD_MAX_FIELD_LEN.
**/
static gchar *
gimp_text_get_xlfd_field (const gchar *fontname,
gint field_num,
gchar *buffer)
{
const gchar *t1, *t2;
gchar *p;
gint countdown, len, num_dashes;
if (!fontname)
return NULL;
/* we assume this is a valid fontname...that is, it has 14 fields */
countdown = field_num;
t1 = fontname;
while (*t1 && (countdown >= 0))
if (*t1++ == '-')
countdown--;
num_dashes = (field_num == XLFD_CHARSET) ? 2 : 1;
for (t2 = t1; *t2; t2++)
{
if (*t2 == '-' && --num_dashes == 0)
break;
}
if (t1 != t2)
{
/* Check we don't overflow the buffer */
len = (long) t2 - (long) t1;
if (len > XLFD_MAX_FIELD_LEN - 1)
return NULL;
strncpy (buffer, t1, len);
buffer[len] = 0;
/* Convert to lower case. */
for (p = buffer; *p; p++)
*p = g_ascii_tolower (*p);
}
else
strcpy(buffer, "(nil)");
return buffer;
}
gchar *
gimp_text_font_name_from_xlfd (const gchar *xlfd)
{
gchar *fields[4];
gchar buffers[4][XLFD_MAX_FIELD_LEN];
gint i, j;
for (i = 0, j = 0; i < 4; i++)
{
fields[j] = gimp_text_get_xlfd_field (xlfd, XLFD_FAMILY + i, buffers[i]);
if (fields[j] && *fields[j] == '*')
fields[j] = NULL;
if (fields[j])
j++;
}
return g_strconcat (fields[0], " ",
fields[1], " ",
fields[2], " ",
fields[3], NULL);
}
gboolean
gimp_text_font_size_from_xlfd (const gchar *xlfd,
gdouble *size,
GimpUnit *size_unit)
{
gchar buffer[XLFD_MAX_FIELD_LEN];
gchar *field;
if (!xlfd)
return FALSE;
field = gimp_text_get_xlfd_field (xlfd, XLFD_PIXELS, buffer);
if (field && *field != '*')
{
*size = atoi (field);
*size_unit = GIMP_UNIT_PIXEL;
return TRUE;
}
field = gimp_text_get_xlfd_field (xlfd, XLFD_POINTS, buffer);
if (field && *field != '*')
{
*size = atoi (field);
*size_unit = GIMP_UNIT_POINT;
return TRUE;
}
return FALSE;
}

35
app/text/gimptext-xlfd.h Normal file
View File

@ -0,0 +1,35 @@
/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* GimpText
* Copyright (C) 2002-2003 Sven Neumann <sven@gimp.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __GIMP_TEXT_XLFD_H__
#define __GIMP_TEXT_XLFD_H__
/* handle X Logical Font Descriptions for compat */
gchar * gimp_text_font_name_from_xlfd (const gchar *xlfd);
gboolean gimp_text_font_size_from_xlfd (const gchar *xlfd,
gdouble *size,
GimpUnit *size_unit);
#endif /* __GIMP_TEXT_COMPAT_H__ */

22
app/xcf/xcf-load.c
View File

@ -786,6 +786,28 @@ xcf_load_layer (XcfInfo *info,
info->active_layer = layer;
}
}
else
{
/* check for a GDynText parasite */
parasite = gimp_item_parasite_find (GIMP_ITEM (layer),
gimp_text_gdyntext_parasite_name ());
if (parasite)
{
GimpText *text = gimp_text_from_gdyntext_parasite (parasite);
if (text)
{
gboolean active = (info->active_layer == layer);
/* convert the layer to a text layer */
layer = gimp_text_layer_from_layer (layer, text);
if (active)
info->active_layer = layer;
}
}
}
/* read the hierarchy and layer mask offsets */
info->cp += xcf_read_int32 (info->fp, &hierarchy_offset, 1);

23
libgimpconfig/gimpconfig-iface.c
View File

@ -213,6 +213,29 @@ gimp_config_serialize_to_file (GObject *object,
return gimp_config_writer_finish (writer, footer, error);
}
gboolean
gimp_config_serialize_to_fd (GObject *object,
gint fd,
gpointer data)
{
GimpConfigInterface *gimp_config_iface;
GimpConfigWriter *writer;
g_return_val_if_fail (G_IS_OBJECT (object), FALSE);
g_return_val_if_fail (fd > 0, FALSE);
gimp_config_iface = GIMP_GET_CONFIG_INTERFACE (object);
g_return_val_if_fail (gimp_config_iface != NULL, FALSE);
writer = gimp_config_writer_new_fd (fd);
if (!writer)
return FALSE;
gimp_config_iface->serialize (object, writer, data);
return gimp_config_writer_finish (writer, NULL, NULL);
}
/**
* gimp_config_serialize_to_string:
* @object: a #GObject that implements the #GimpConfigInterface.

3
libgimpconfig/gimpconfig-iface.h
View File

@ -77,6 +77,9 @@ gboolean gimp_config_serialize_to_file (GObject *object,
const gchar *footer,
gpointer data,
GError **error);
gboolean gimp_config_serialize_to_fd (GObject *object,
gint fd,
gpointer data);
gchar * gimp_config_serialize_to_string (GObject *object,
gpointer data);
gboolean gimp_config_deserialize_file (GObject *object,