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gimp/app/text/gimptext.c

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/* GIMP - The GNU 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 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 "libgimpbase/gimpbase.h"
#include "libgimpmath/gimpmath.h"
#include "libgimpcolor/gimpcolor.h"
#include "libgimpconfig/gimpconfig.h"
#include "text-types.h"
#include "core/gimp-memsize.h"
#include "core/gimp-utils.h"
#include "core/gimpmarshal.h"
#include "core/gimpstrokeoptions.h"
#include "gimptext.h"
enum
{
PROP_0,
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,
/* for backward compatibility */
PROP_HINTING
};
enum
{
CHANGED,
LAST_SIGNAL
};
static void gimp_text_finalize (GObject *object);
static void gimp_text_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gimp_text_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_text_dispatch_properties_changed (GObject *object,
guint n_pspecs,
GParamSpec **pspecs);
static gint64 gimp_text_get_memsize (GimpObject *object,
gint64 *gui_size);
G_DEFINE_TYPE_WITH_CODE (GimpText, gimp_text, GIMP_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONFIG, NULL))
#define parent_class gimp_text_parent_class
static guint text_signals[LAST_SIGNAL] = { 0 };
static void
gimp_text_class_init (GimpTextClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpObjectClass *gimp_object_class = GIMP_OBJECT_CLASS (klass);
GimpRGB black;
GimpMatrix2 identity;
gchar *language;
text_signals[CHANGED] =
g_signal_new ("changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpTextClass, changed),
NULL, NULL,
gimp_marshal_VOID__VOID,
G_TYPE_NONE, 0);
object_class->finalize = gimp_text_finalize;
object_class->get_property = gimp_text_get_property;
object_class->set_property = gimp_text_set_property;
object_class->dispatch_properties_changed = gimp_text_dispatch_properties_changed;
gimp_object_class->get_memsize = gimp_text_get_memsize;
gimp_rgba_set (&black, 0.0, 0.0, 0.0, GIMP_OPACITY_OPAQUE);
gimp_matrix2_identity (&identity);
GIMP_CONFIG_PROP_STRING (object_class, PROP_TEXT,
"text",
NULL, NULL,
NULL,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_STRING (object_class, PROP_MARKUP,
"markup",
NULL, NULL,
NULL,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_STRING (object_class, PROP_FONT,
"font",
NULL, NULL,
"Sans-serif",
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_DOUBLE (object_class, PROP_FONT_SIZE,
"font-size",
NULL, NULL,
0.0, 8192.0, 24.0,
GIMP_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.
*/
GIMP_CONFIG_PROP_UNIT (object_class, PROP_UNIT,
"font-size-unit",
NULL, NULL,
TRUE, FALSE, GIMP_UNIT_PIXEL,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_ANTIALIAS,
"antialias",
NULL, NULL,
TRUE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_ENUM (object_class, PROP_HINT_STYLE,
"hint-style",
NULL, NULL,
GIMP_TYPE_TEXT_HINT_STYLE,
GIMP_TEXT_HINT_STYLE_MEDIUM,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_DEFAULTS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_KERNING,
"kerning",
NULL, NULL,
FALSE,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_DEFAULTS);
language = gimp_get_default_language (NULL);
GIMP_CONFIG_PROP_STRING (object_class, PROP_LANGUAGE,
"language",
NULL, NULL,
language,
GIMP_PARAM_STATIC_STRINGS);
g_free (language);
GIMP_CONFIG_PROP_ENUM (object_class, PROP_BASE_DIR,
"base-direction",
NULL, NULL,
GIMP_TYPE_TEXT_DIRECTION,
GIMP_TEXT_DIRECTION_LTR,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_RGB (object_class, PROP_COLOR,
"color",
NULL, NULL,
FALSE, &black,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_ENUM (object_class, PROP_OUTLINE,
"outline",
NULL, NULL,
GIMP_TYPE_TEXT_OUTLINE,
GIMP_TEXT_OUTLINE_NONE,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_DEFAULTS);
GIMP_CONFIG_PROP_ENUM (object_class, PROP_JUSTIFICATION,
"justify",
NULL, NULL,
GIMP_TYPE_TEXT_JUSTIFICATION,
GIMP_TEXT_JUSTIFY_LEFT,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_DOUBLE (object_class, PROP_INDENTATION,
"indent",
NULL, NULL,
-8192.0, 8192.0, 0.0,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_DEFAULTS);
GIMP_CONFIG_PROP_DOUBLE (object_class, PROP_LINE_SPACING,
"line-spacing",
NULL, NULL,
-8192.0, 8192.0, 0.0,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_DEFAULTS);
GIMP_CONFIG_PROP_DOUBLE (object_class, PROP_LETTER_SPACING,
"letter-spacing",
NULL, NULL,
-8192.0, 8192.0, 0.0,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_DEFAULTS);
GIMP_CONFIG_PROP_ENUM (object_class, PROP_BOX_MODE,
"box-mode",
NULL, NULL,
GIMP_TYPE_TEXT_BOX_MODE,
GIMP_TEXT_BOX_DYNAMIC,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_DOUBLE (object_class, PROP_BOX_WIDTH,
"box-width",
NULL, NULL,
0.0, GIMP_MAX_IMAGE_SIZE, 0.0,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_DEFAULTS);
GIMP_CONFIG_PROP_DOUBLE (object_class, PROP_BOX_HEIGHT,
"box-height",
NULL, NULL,
0.0, GIMP_MAX_IMAGE_SIZE, 0.0,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_DEFAULTS);
GIMP_CONFIG_PROP_UNIT (object_class, PROP_BOX_UNIT,
"box-unit",
NULL, NULL,
TRUE, FALSE, GIMP_UNIT_PIXEL,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_MATRIX2 (object_class, PROP_TRANSFORMATION,
"transformation",
NULL, NULL,
&identity,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_DEFAULTS);
GIMP_CONFIG_PROP_DOUBLE (object_class, PROP_OFFSET_X,
"offset-x",
NULL, NULL,
-G_MAXDOUBLE, G_MAXDOUBLE, 0.0,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_DEFAULTS);
GIMP_CONFIG_PROP_DOUBLE (object_class, PROP_OFFSET_Y,
"offset-y",
NULL, NULL,
-G_MAXDOUBLE, G_MAXDOUBLE, 0.0,
GIMP_PARAM_STATIC_STRINGS |
GIMP_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, GIMP_MAX_IMAGE_SIZE, 0,
G_PARAM_CONSTRUCT |
GIMP_PARAM_WRITABLE));
/* the old hinting options have been replaced by 'hint-style' */
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_HINTING,
"hinting",
NULL, NULL,
TRUE,
GIMP_PARAM_STATIC_STRINGS);
}
static void
gimp_text_init (GimpText *text)
{
}
static void
gimp_text_finalize (GObject *object)
{
GimpText *text = GIMP_TEXT (object);
g_clear_pointer (&text->text, g_free);
g_clear_pointer (&text->markup, g_free);
g_clear_pointer (&text->font, g_free);
g_clear_pointer (&text->language, g_free);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_text_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpText *text = GIMP_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_string (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_HINTING:
g_value_set_boolean (value,
text->hint_style != GIMP_TEXT_HINT_STYLE_NONE);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_text_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpText *text = GIMP_TEXT (object);
GimpRGB *color;
GimpMatrix2 *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:
{
const gchar *font = g_value_get_string (value);
g_free (text->font);
if (font)
{
gsize len = strlen (font);
if (g_str_has_suffix (font, " Not-Rotated"))
len -= strlen ( " Not-Rotated");
text->font = g_strndup (font, len);
}
else
{
text->font = NULL;
}
}
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_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 GIMP versions
*/
if (text->hint_style == GIMP_TEXT_HINT_STYLE_MEDIUM)
text->hint_style = (g_value_get_boolean (value) ?
GIMP_TEXT_HINT_STYLE_MEDIUM :
GIMP_TEXT_HINT_STYLE_NONE);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_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
gimp_text_get_memsize (GimpObject *object,
gint64 *gui_size)
{
GimpText *text = GIMP_TEXT (object);
gint64 memsize = 0;
memsize += gimp_string_get_memsize (text->text);
memsize += gimp_string_get_memsize (text->markup);
memsize += gimp_string_get_memsize (text->font);
memsize += gimp_string_get_memsize (text->language);
return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
gui_size);
}
void
gimp_text_get_transformation (GimpText *text,
GimpMatrix3 *matrix)
{
g_return_if_fail (GIMP_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;
}
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