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PIKApp/app/text/pikatext.c

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/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* PikaText
* 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 3 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, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <cairo.h>
#include <gegl.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <pango/pango.h>
#include "libpikabase/pikabase.h"
#include "libpikamath/pikamath.h"
#include "libpikacolor/pikacolor.h"
#include "libpikaconfig/pikaconfig.h"
#include "text-types.h"
#include "pikafont.h"
#include "core/pika.h"
#include "core/pika-memsize.h"
#include "core/pika-utils.h"
#include "core/pikacontainer.h"
#include "core/pikadashpattern.h"
#include "core/pikadatafactory.h"
#include "core/pikastrokeoptions.h"
#include "core/pikapattern.h"
#include "pikatext.h"
enum
{
PROP_0,
PROP_PIKA,
PROP_TEXT,
PROP_MARKUP,
PROP_FONT,
PROP_FONT_SIZE,
PROP_UNIT,
PROP_ANTIALIAS,
PROP_HINT_STYLE,
PROP_KERNING,
PROP_LANGUAGE,
PROP_BASE_DIR,
PROP_COLOR,
PROP_OUTLINE,
PROP_JUSTIFICATION,
PROP_INDENTATION,
PROP_LINE_SPACING,
PROP_LETTER_SPACING,
PROP_BOX_MODE,
PROP_BOX_WIDTH,
PROP_BOX_HEIGHT,
PROP_BOX_UNIT,
PROP_TRANSFORMATION,
PROP_OFFSET_X,
PROP_OFFSET_Y,
PROP_BORDER,
PROP_OUTLINE_STYLE, /* fill-options */
PROP_OUTLINE_FOREGROUND, /* context */
PROP_OUTLINE_PATTERN, /* context */
PROP_OUTLINE_WIDTH, /* stroke-options */
PROP_OUTLINE_UNIT,
PROP_OUTLINE_CAP_STYLE,
PROP_OUTLINE_JOIN_STYLE,
PROP_OUTLINE_MITER_LIMIT,
PROP_OUTLINE_ANTIALIAS, /* fill-options */
PROP_OUTLINE_DASH_OFFSET,
PROP_OUTLINE_DASH_INFO,
/* for backward compatibility */
PROP_HINTING
};
enum
{
CHANGED,
LAST_SIGNAL
};
static void pika_text_config_iface_init (PikaConfigInterface *iface);
static gboolean pika_text_serialize_property (PikaConfig *config,
guint property_id,
const GValue *value,
GParamSpec *pspec,
PikaConfigWriter *writer);
static gboolean pika_text_deserialize_property (PikaConfig *config,
guint property_id,
GValue *value,
GParamSpec *pspec,
GScanner *scanner,
GTokenType *expected);
static void pika_text_finalize (GObject *object);
static void pika_text_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void pika_text_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void pika_text_dispatch_properties_changed (GObject *object,
guint n_pspecs,
GParamSpec **pspecs);
static gint64 pika_text_get_memsize (PikaObject *object,
gint64 *gui_size);
G_DEFINE_TYPE_WITH_CODE (PikaText, pika_text, PIKA_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (PIKA_TYPE_CONFIG,
pika_text_config_iface_init))
#define parent_class pika_text_parent_class
static guint text_signals[LAST_SIGNAL] = { 0 };
static void
pika_text_class_init (PikaTextClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
PikaObjectClass *pika_object_class = PIKA_OBJECT_CLASS (klass);
PikaRGB black;
PikaRGB gray;
PikaMatrix2 identity;
gchar *language;
GParamSpec *array_spec;
text_signals[CHANGED] =
g_signal_new ("changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (PikaTextClass, changed),
NULL, NULL, NULL,
G_TYPE_NONE, 0);
object_class->finalize = pika_text_finalize;
object_class->get_property = pika_text_get_property;
object_class->set_property = pika_text_set_property;
object_class->dispatch_properties_changed = pika_text_dispatch_properties_changed;
pika_object_class->get_memsize = pika_text_get_memsize;
pika_rgba_set (&black, 0.0, 0.0, 0.0, PIKA_OPACITY_OPAQUE);
pika_rgba_set (&gray, 0.75, 0.75, 0.75, PIKA_OPACITY_OPAQUE);
pika_matrix2_identity (&identity);
PIKA_CONFIG_PROP_STRING (object_class, PROP_TEXT,
"text",
NULL, NULL,
NULL,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_STRING (object_class, PROP_MARKUP,
"markup",
NULL, NULL,
NULL,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_FONT (object_class, PROP_FONT,
"font", NULL, NULL,
PIKA_CONFIG_PARAM_FLAGS);
PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_FONT_SIZE,
"font-size",
NULL, NULL,
0.0, 8192.0, 24.0,
PIKA_PARAM_STATIC_STRINGS);
/* We use the name "font-size-unit" for backward compatibility.
* The unit is also used for other sizes in the text object.
*/
PIKA_CONFIG_PROP_UNIT (object_class, PROP_UNIT,
"font-size-unit",
NULL, NULL,
TRUE, FALSE, PIKA_UNIT_PIXEL,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_BOOLEAN (object_class, PROP_ANTIALIAS,
"antialias",
NULL, NULL,
TRUE,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_ENUM (object_class, PROP_HINT_STYLE,
"hint-style",
NULL, NULL,
PIKA_TYPE_TEXT_HINT_STYLE,
PIKA_TEXT_HINT_STYLE_MEDIUM,
PIKA_PARAM_STATIC_STRINGS |
PIKA_CONFIG_PARAM_DEFAULTS);
PIKA_CONFIG_PROP_BOOLEAN (object_class, PROP_KERNING,
"kerning",
NULL, NULL,
FALSE,
PIKA_PARAM_STATIC_STRINGS |
PIKA_CONFIG_PARAM_DEFAULTS);
language = pika_get_default_language (NULL);
PIKA_CONFIG_PROP_STRING (object_class, PROP_LANGUAGE,
"language",
NULL, NULL,
language,
PIKA_PARAM_STATIC_STRINGS);
g_free (language);
PIKA_CONFIG_PROP_ENUM (object_class, PROP_BASE_DIR,
"base-direction",
NULL, NULL,
PIKA_TYPE_TEXT_DIRECTION,
PIKA_TEXT_DIRECTION_LTR,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_RGB (object_class, PROP_COLOR,
"color",
NULL, NULL,
FALSE, &black,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_ENUM (object_class, PROP_OUTLINE,
"outline",
NULL, NULL,
PIKA_TYPE_TEXT_OUTLINE,
PIKA_TEXT_OUTLINE_NONE,
PIKA_PARAM_STATIC_STRINGS |
PIKA_CONFIG_PARAM_DEFAULTS);
PIKA_CONFIG_PROP_ENUM (object_class, PROP_JUSTIFICATION,
"justify",
NULL, NULL,
PIKA_TYPE_TEXT_JUSTIFICATION,
PIKA_TEXT_JUSTIFY_LEFT,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_INDENTATION,
"indent",
NULL, NULL,
-8192.0, 8192.0, 0.0,
PIKA_PARAM_STATIC_STRINGS |
PIKA_CONFIG_PARAM_DEFAULTS);
PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_LINE_SPACING,
"line-spacing",
NULL, NULL,
-8192.0, 8192.0, 0.0,
PIKA_PARAM_STATIC_STRINGS |
PIKA_CONFIG_PARAM_DEFAULTS);
PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_LETTER_SPACING,
"letter-spacing",
NULL, NULL,
-8192.0, 8192.0, 0.0,
PIKA_PARAM_STATIC_STRINGS |
PIKA_CONFIG_PARAM_DEFAULTS);
PIKA_CONFIG_PROP_ENUM (object_class, PROP_BOX_MODE,
"box-mode",
NULL, NULL,
PIKA_TYPE_TEXT_BOX_MODE,
PIKA_TEXT_BOX_DYNAMIC,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_BOX_WIDTH,
"box-width",
NULL, NULL,
0.0, PIKA_MAX_IMAGE_SIZE, 0.0,
PIKA_PARAM_STATIC_STRINGS |
PIKA_CONFIG_PARAM_DEFAULTS);
PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_BOX_HEIGHT,
"box-height",
NULL, NULL,
0.0, PIKA_MAX_IMAGE_SIZE, 0.0,
PIKA_PARAM_STATIC_STRINGS |
PIKA_CONFIG_PARAM_DEFAULTS);
PIKA_CONFIG_PROP_UNIT (object_class, PROP_BOX_UNIT,
"box-unit",
NULL, NULL,
TRUE, FALSE, PIKA_UNIT_PIXEL,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_MATRIX2 (object_class, PROP_TRANSFORMATION,
"transformation",
NULL, NULL,
&identity,
PIKA_PARAM_STATIC_STRINGS |
PIKA_CONFIG_PARAM_DEFAULTS);
PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_OFFSET_X,
"offset-x",
NULL, NULL,
-G_MAXDOUBLE, G_MAXDOUBLE, 0.0,
PIKA_PARAM_STATIC_STRINGS |
PIKA_CONFIG_PARAM_DEFAULTS);
PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_OFFSET_Y,
"offset-y",
NULL, NULL,
-G_MAXDOUBLE, G_MAXDOUBLE, 0.0,
PIKA_PARAM_STATIC_STRINGS |
PIKA_CONFIG_PARAM_DEFAULTS);
/* border does only exist to implement the old text API */
g_object_class_install_property (object_class, PROP_BORDER,
g_param_spec_int ("border", NULL, NULL,
0, PIKA_MAX_IMAGE_SIZE, 0,
G_PARAM_CONSTRUCT |
PIKA_PARAM_WRITABLE));
PIKA_CONFIG_PROP_ENUM (object_class, PROP_OUTLINE_STYLE,
"outline-custom-style", NULL, NULL,
PIKA_TYPE_CUSTOM_STYLE,
PIKA_CUSTOM_STYLE_SOLID_COLOR,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_OBJECT (object_class, PROP_OUTLINE_PATTERN,
"outline-pattern", NULL, NULL,
PIKA_TYPE_PATTERN,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_RGB (object_class, PROP_OUTLINE_FOREGROUND,
"outline-foreground", NULL, NULL,
FALSE, &gray,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_OUTLINE_WIDTH,
"outline-width", NULL, NULL,
0.0, 8192.0, 4.0,
PIKA_PARAM_STATIC_STRINGS |
PIKA_CONFIG_PARAM_DEFAULTS);
PIKA_CONFIG_PROP_ENUM (object_class, PROP_OUTLINE_CAP_STYLE,
"outline-cap-style", NULL, NULL,
PIKA_TYPE_CAP_STYLE, PIKA_CAP_BUTT,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_ENUM (object_class, PROP_OUTLINE_JOIN_STYLE,
"outline-join-style", NULL, NULL,
PIKA_TYPE_JOIN_STYLE, PIKA_JOIN_MITER,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_OUTLINE_MITER_LIMIT,
"outline-miter-limit",
NULL, NULL,
0.0, 100.0, 10.0,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_BOOLEAN (object_class, PROP_OUTLINE_ANTIALIAS,
"outline-antialias", NULL, NULL,
TRUE,
PIKA_PARAM_STATIC_STRINGS);
PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_OUTLINE_DASH_OFFSET,
"outline-dash-offset", NULL, NULL,
0.0, 2000.0, 0.0,
PIKA_PARAM_STATIC_STRINGS);
array_spec = g_param_spec_double ("outline-dash-length", NULL, NULL,
0.0, 2000.0, 1.0, PIKA_PARAM_READWRITE);
g_object_class_install_property (object_class, PROP_OUTLINE_DASH_INFO,
pika_param_spec_value_array ("outline-dash-info",
NULL, NULL,
array_spec,
PIKA_PARAM_STATIC_STRINGS |
PIKA_CONFIG_PARAM_FLAGS));
/* the old hinting options have been replaced by 'hint-style' */
PIKA_CONFIG_PROP_BOOLEAN (object_class, PROP_HINTING,
"hinting",
NULL, NULL,
TRUE,
PIKA_PARAM_STATIC_STRINGS);
g_object_class_install_property (object_class, PROP_PIKA,
g_param_spec_object ("pika", NULL, NULL,
PIKA_TYPE_PIKA,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
}
static void
pika_text_init (PikaText *text)
{
}
static void
pika_text_config_iface_init (PikaConfigInterface *iface)
{
iface->serialize_property = pika_text_serialize_property;
iface->deserialize_property = pika_text_deserialize_property;
}
static void
pika_text_finalize (GObject *object)
{
PikaText *text = PIKA_TEXT (object);
g_clear_pointer (&text->text, g_free);
g_clear_pointer (&text->markup, g_free);
g_clear_pointer (&text->language, g_free);
g_clear_object (&text->font);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
pika_text_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
PikaText *text = PIKA_TEXT (object);
switch (property_id)
{
case PROP_TEXT:
g_value_set_string (value, text->text);
break;
case PROP_MARKUP:
g_value_set_string (value, text->markup);
break;
case PROP_FONT:
g_value_set_object (value, text->font);
break;
case PROP_FONT_SIZE:
g_value_set_double (value, text->font_size);
break;
case PROP_UNIT:
g_value_set_int (value, text->unit);
break;
case PROP_ANTIALIAS:
g_value_set_boolean (value, text->antialias);
break;
case PROP_HINT_STYLE:
g_value_set_enum (value, text->hint_style);
break;
case PROP_KERNING:
g_value_set_boolean (value, text->kerning);
break;
case PROP_BASE_DIR:
g_value_set_enum (value, text->base_dir);
break;
case PROP_LANGUAGE:
g_value_set_string (value, text->language);
break;
case PROP_COLOR:
g_value_set_boxed (value, &text->color);
break;
case PROP_OUTLINE:
g_value_set_enum (value, text->outline);
break;
case PROP_JUSTIFICATION:
g_value_set_enum (value, text->justify);
break;
case PROP_INDENTATION:
g_value_set_double (value, text->indent);
break;
case PROP_LINE_SPACING:
g_value_set_double (value, text->line_spacing);
break;
case PROP_LETTER_SPACING:
g_value_set_double (value, text->letter_spacing);
break;
case PROP_BOX_MODE:
g_value_set_enum (value, text->box_mode);
break;
case PROP_BOX_WIDTH:
g_value_set_double (value, text->box_width);
break;
case PROP_BOX_HEIGHT:
g_value_set_double (value, text->box_height);
break;
case PROP_BOX_UNIT:
g_value_set_int (value, text->box_unit);
break;
case PROP_TRANSFORMATION:
g_value_set_boxed (value, &text->transformation);
break;
case PROP_OFFSET_X:
g_value_set_double (value, text->offset_x);
break;
case PROP_OFFSET_Y:
g_value_set_double (value, text->offset_y);
break;
case PROP_OUTLINE_STYLE:
g_value_set_enum (value, text->outline_style);
break;
case PROP_OUTLINE_FOREGROUND:
g_value_set_boxed (value, &text->outline_foreground);
break;
case PROP_OUTLINE_PATTERN:
g_value_set_object (value, text->outline_pattern);
break;
case PROP_OUTLINE_WIDTH:
g_value_set_double (value, text->outline_width);
break;
case PROP_OUTLINE_CAP_STYLE:
g_value_set_enum (value, text->outline_cap_style);
break;
case PROP_OUTLINE_JOIN_STYLE:
g_value_set_enum (value, text->outline_join_style);
break;
case PROP_OUTLINE_MITER_LIMIT:
g_value_set_double (value, text->outline_miter_limit);
break;
case PROP_OUTLINE_ANTIALIAS:
g_value_set_boolean (value, text->outline_antialias);
break;
case PROP_OUTLINE_DASH_OFFSET:
g_value_set_double (value, text->outline_dash_offset);
break;
case PROP_OUTLINE_DASH_INFO:
{
PikaValueArray *value_array;
value_array = pika_dash_pattern_to_value_array (text->outline_dash_info);
g_value_take_boxed (value, value_array);
}
break;
case PROP_HINTING:
g_value_set_boolean (value,
text->hint_style != PIKA_TEXT_HINT_STYLE_NONE);
break;
case PROP_PIKA:
g_value_set_object (value, text->pika);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
pika_text_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
PikaText *text = PIKA_TEXT (object);
PikaRGB *color;
PikaMatrix2 *matrix;
switch (property_id)
{
case PROP_TEXT:
g_free (text->text);
text->text = g_value_dup_string (value);
if (text->text && text->markup)
{
g_clear_pointer (&text->markup, g_free);
g_object_notify (object, "markup");
}
break;
case PROP_MARKUP:
g_free (text->markup);
text->markup = g_value_dup_string (value);
if (text->markup && text->text)
{
g_clear_pointer (&text->text, g_free);
g_object_notify (object, "text");
}
break;
case PROP_FONT:
{
PikaFont *font = g_value_get_object (value);
if (font != text->font)
g_set_object (&text->font, font);
}
break;
case PROP_FONT_SIZE:
text->font_size = g_value_get_double (value);
break;
case PROP_UNIT:
text->unit = g_value_get_int (value);
break;
case PROP_ANTIALIAS:
text->antialias = g_value_get_boolean (value);
break;
case PROP_HINT_STYLE:
text->hint_style = g_value_get_enum (value);
break;
case PROP_KERNING:
text->kerning = g_value_get_boolean (value);
break;
case PROP_LANGUAGE:
g_free (text->language);
text->language = g_value_dup_string (value);
break;
case PROP_BASE_DIR:
text->base_dir = g_value_get_enum (value);
break;
case PROP_COLOR:
color = g_value_get_boxed (value);
text->color = *color;
break;
case PROP_OUTLINE:
text->outline = g_value_get_enum (value);
break;
case PROP_JUSTIFICATION:
text->justify = g_value_get_enum (value);
break;
case PROP_INDENTATION:
text->indent = g_value_get_double (value);
break;
case PROP_LINE_SPACING:
text->line_spacing = g_value_get_double (value);
break;
case PROP_LETTER_SPACING:
text->letter_spacing = g_value_get_double (value);
break;
case PROP_BOX_MODE:
text->box_mode = g_value_get_enum (value);
break;
case PROP_BOX_WIDTH:
text->box_width = g_value_get_double (value);
break;
case PROP_BOX_HEIGHT:
text->box_height = g_value_get_double (value);
break;
case PROP_BOX_UNIT:
text->box_unit = g_value_get_int (value);
break;
case PROP_TRANSFORMATION:
matrix = g_value_get_boxed (value);
text->transformation = *matrix;
break;
case PROP_OFFSET_X:
text->offset_x = g_value_get_double (value);
break;
case PROP_OFFSET_Y:
text->offset_y = g_value_get_double (value);
break;
case PROP_OUTLINE_STYLE:
text->outline_style = g_value_get_enum (value);
break;
case PROP_OUTLINE_FOREGROUND:
color = g_value_get_boxed (value);
text->outline_foreground = *color;
break;
case PROP_OUTLINE_PATTERN:
{
PikaPattern *pattern = g_value_get_object (value);
if (text->outline_pattern != pattern)
{
if (text->outline_pattern)
g_object_unref (text->outline_pattern);
text->outline_pattern = pattern ? g_object_ref (pattern) : pattern;
}
break;
}
case PROP_OUTLINE_WIDTH:
text->outline_width = g_value_get_double (value);
break;
case PROP_OUTLINE_CAP_STYLE:
text->outline_cap_style = g_value_get_enum (value);
break;
case PROP_OUTLINE_JOIN_STYLE:
text->outline_join_style = g_value_get_enum (value);
break;
case PROP_OUTLINE_MITER_LIMIT:
text->outline_miter_limit = g_value_get_double (value);
break;
case PROP_OUTLINE_ANTIALIAS:
text->outline_antialias = g_value_get_boolean (value);
break;
case PROP_OUTLINE_DASH_OFFSET:
text->outline_dash_offset = g_value_get_double (value);
break;
case PROP_OUTLINE_DASH_INFO:
{
PikaValueArray *value_array = g_value_get_boxed (value);
text->outline_dash_info = pika_dash_pattern_from_value_array (value_array);
}
break;
case PROP_BORDER:
text->border = g_value_get_int (value);
break;
case PROP_HINTING:
/* interpret "hinting" only if "hint-style" has its default
* value, so we don't overwrite a serialized new hint-style with
* a compat "hinting" that is only there for old PIKA versions
*/
if (text->hint_style == PIKA_TEXT_HINT_STYLE_MEDIUM)
text->hint_style = (g_value_get_boolean (value) ?
PIKA_TEXT_HINT_STYLE_MEDIUM :
PIKA_TEXT_HINT_STYLE_NONE);
break;
case PROP_PIKA:
text->pika = g_value_get_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
pika_text_dispatch_properties_changed (GObject *object,
guint n_pspecs,
GParamSpec **pspecs)
{
G_OBJECT_CLASS (parent_class)->dispatch_properties_changed (object,
n_pspecs, pspecs);
g_signal_emit (object, text_signals[CHANGED], 0);
}
static gint64
pika_text_get_memsize (PikaObject *object,
gint64 *gui_size)
{
PikaText *text = PIKA_TEXT (object);
gint64 memsize = 0;
memsize += pika_string_get_memsize (text->text);
memsize += pika_string_get_memsize (text->markup);
memsize += pika_string_get_memsize (text->language);
return memsize + PIKA_OBJECT_CLASS (parent_class)->get_memsize (object,
gui_size);
}
void
pika_text_get_transformation (PikaText *text,
PikaMatrix3 *matrix)
{
g_return_if_fail (PIKA_IS_TEXT (text));
g_return_if_fail (matrix != NULL);
matrix->coeff[0][0] = text->transformation.coeff[0][0];
matrix->coeff[0][1] = text->transformation.coeff[0][1];
matrix->coeff[0][2] = text->offset_x;
matrix->coeff[1][0] = text->transformation.coeff[1][0];
matrix->coeff[1][1] = text->transformation.coeff[1][1];
matrix->coeff[1][2] = text->offset_y;
matrix->coeff[2][0] = 0.0;
matrix->coeff[2][1] = 0.0;
matrix->coeff[2][2] = 1.0;
}
static gboolean
pika_text_serialize_property (PikaConfig *config,
guint property_id,
const GValue *value,
GParamSpec *pspec,
PikaConfigWriter *writer)
{
if (property_id == PROP_OUTLINE_PATTERN)
{
PikaObject *serialize_obj = g_value_get_object (value);
pika_config_writer_open (writer, pspec->name);
if (serialize_obj)
pika_config_writer_string (writer, pika_object_get_name (serialize_obj));
else
pika_config_writer_print (writer, "NULL", 4);
pika_config_writer_close (writer);
return TRUE;
}
else if (property_id == PROP_MARKUP)
{
gchar *markup = (gchar*)g_value_get_string (value);
GRegex *regex;
PikaText *text;
PikaContainer *container;
PangoAttrList *attr_list;
PikaFont *font;
guint length;
GSList *list = NULL;
GSList *fonts = NULL;
g_return_val_if_fail (PIKA_IS_TEXT (config), FALSE);
if (markup == NULL)
return FALSE;
text = PIKA_TEXT (config);
container = pika_data_factory_get_container (text->pika->font_factory);
/*lookupname format is "pikafont%d" we keep only the "font%d" part
* this is to avoid problems when deserializing
* e.g. if there are 2 fonts with lookupname pikafont17 and pikafont23
* we might replace the first with a font whose lookupname is pikafont23,
* and we might replace the original pikafont23 with say pikafont29
* this means that all occurences of pikafont23 turned into pikafont29
*/
regex = g_regex_new ("\"pikafont(\\d+)\"", 0, 0, NULL);
markup = g_regex_replace (regex, markup, -1, 0, "\"font\\1\"", 0, NULL);
pika_config_writer_open (writer, "markup");
pika_config_writer_string (writer, markup);
pango_parse_markup (markup, -1, 0, &attr_list, NULL, NULL, NULL);
list = pango_attr_list_get_attributes (attr_list);
length = g_slist_length (list);
for (guint i = 0; i < length; ++i)
{
PangoAttrFontDesc *attr_font_desc = pango_attribute_as_font_desc ((PangoAttribute*)g_slist_nth_data (list, i));
if (attr_font_desc != NULL)
{
gchar *altered_font_name = pango_font_description_to_string (attr_font_desc->desc);
gchar *font_name = g_strdup_printf ("pika%s", altered_font_name);
if (g_slist_find_custom (fonts, (gconstpointer) font_name, (GCompareFunc) g_strcmp0) == NULL)
{
fonts = g_slist_prepend (fonts, (gpointer) font_name);
font = PIKA_FONT (pika_container_search (container,
(PikaContainerSearchFunc) pika_font_match_by_lookup_name,
(gpointer) font_name));
pika_config_writer_open (writer, "markupfont");
/*lookupname format is "font%d" we keep only the "font%d" (see the above comment)*/
pika_config_writer_string (writer, font_name+4);
pika_config_writer_open (writer, "font");
PIKA_CONFIG_GET_IFACE (PIKA_CONFIG (font))->serialize (PIKA_CONFIG (font),
writer,
NULL);
pika_config_writer_close (writer);
pika_config_writer_close (writer);
}
else
{
g_free (font_name);
}
g_free (altered_font_name);
}
}
pika_config_writer_close (writer);
g_slist_free_full (fonts, (GDestroyNotify) g_free);
g_slist_free_full (list, (GDestroyNotify) pango_attribute_destroy);
pango_attr_list_unref (attr_list);
g_free (markup);
g_regex_unref (regex);
return TRUE;
}
return FALSE;
}
static gboolean
pika_text_deserialize_property (PikaConfig *object,
guint property_id,
GValue *value,
GParamSpec *pspec,
GScanner *scanner,
GTokenType *expected)
{
if (property_id == PROP_OUTLINE_PATTERN)
{
gchar *object_name;
if (pika_scanner_parse_identifier (scanner, "NULL"))
{
g_value_set_object (value, NULL);
}
else if (pika_scanner_parse_string (scanner, &object_name))
{
PikaText *text = PIKA_TEXT (object);
PikaContainer *container;
PikaObject *deserialize_obj;
if (! object_name)
object_name = g_strdup ("");
container = pika_data_factory_get_container (text->pika->pattern_factory);
deserialize_obj = pika_container_get_child_by_name (container,
object_name);
g_value_set_object (value, deserialize_obj);
g_free (object_name);
}
else
{
*expected = G_TOKEN_STRING;
}
return TRUE;
}
else if (property_id == PROP_OUTLINE_DASH_INFO)
{
if (pika_scanner_parse_identifier (scanner, "NULL"))
{
g_value_take_boxed (value, NULL);
return TRUE;
}
}
else if (property_id == PROP_MARKUP)
{
gchar *markup;
GString *markup_str;
PikaFont *dummy_object = g_object_new (PIKA_TYPE_FONT, NULL);
pika_scanner_parse_string (scanner, &markup);
markup_str = g_string_new (markup);
/* This is for backward compatibility with older xcf files.*/
if (g_scanner_peek_next_token (scanner) == G_TOKEN_STRING)
{
while (g_scanner_peek_next_token (scanner) == G_TOKEN_STRING)
{
gchar *markup_fontname;
gchar *replaced_markup;
gchar *new_markup;
PikaFont *font;
pika_scanner_parse_string (scanner, &markup_fontname);
font = PIKA_FONT (PIKA_CONFIG_GET_IFACE (dummy_object)->deserialize_create (PIKA_TYPE_FONT,
scanner,
-1,
NULL));
replaced_markup = g_markup_printf_escaped (" font=\"%s\"", markup_fontname);
new_markup = g_strdup_printf (" pikafont=\"%s\"", pika_font_get_lookup_name (font));
g_string_replace (markup_str, replaced_markup, new_markup, 0);
g_free (markup_fontname);
g_free (replaced_markup);
g_free (new_markup);
g_object_unref (font);
}
/* We avoid the edge case when actual fonts are called "pikafont%d"
* and their replacement name chains to each other by marking already
* processed font as "pikafont=". Then we clean up this fake attribute
* name in the end.
* This is not a problem with the new format as font are stored as
* "font%d" (see comment in pika_text_serialize_property()).
*/
g_string_replace (markup_str, " pikafont=\"", " font=\"", 0);
}
else
{
while (g_scanner_peek_next_token (scanner) == G_TOKEN_LEFT_PAREN)
{
gchar *lookupname;
gchar *replaced_markup;
gchar *new_markup;
PikaFont *font;
g_scanner_get_next_token (scanner); /* ( */
g_scanner_get_next_token (scanner); /* "lookupname" */
pika_scanner_parse_string (scanner, &lookupname);
g_scanner_get_next_token (scanner); /* ) */
g_scanner_get_next_token (scanner); /* font */
font = PIKA_FONT (PIKA_CONFIG_GET_IFACE (dummy_object)->deserialize_create (PIKA_TYPE_FONT,
scanner,
-1,
NULL));
g_scanner_get_next_token (scanner); /* ) */
g_scanner_get_next_token (scanner); /* ) */
replaced_markup = g_markup_printf_escaped (" font=\"%s\"", lookupname);
new_markup = g_strdup_printf (" font=\"%s\"", pika_font_get_lookup_name (font));
g_string_replace (markup_str, replaced_markup, new_markup, 0);
g_free (lookupname);
g_free (replaced_markup);
g_free (new_markup);
g_object_unref (font);
}
}
g_value_set_string (value, markup_str->str);
g_object_unref (dummy_object);
g_string_free (markup_str, TRUE);
return TRUE;
}
return FALSE;
}
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