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gimp/app/core/gimpstrokeoptions.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995-1999 Spencer Kimball and Peter Mattis
*
* gimpstrokeoptions.c
* Copyright (C) 2003 Simon Budig
*
* 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 <glib-object.h>
#include "libgimpbase/gimpbase.h"
#include "core-types.h"
#include "config/gimpconfig-params.h"
#include "gimpmarshal.h"
#include "gimpstrokeoptions.h"
enum
{
PROP_0,
PROP_STYLE,
PROP_WIDTH,
PROP_UNIT,
PROP_CAP_STYLE,
PROP_JOIN_STYLE,
PROP_MITER,
PROP_ANTIALIAS,
PROP_DASH_UNIT,
PROP_DASH_OFFSET,
PROP_DASH_INFO
};
enum
{
DASH_INFO_CHANGED,
LAST_SIGNAL
};
static void gimp_stroke_options_class_init (GimpStrokeOptionsClass *klass);
static void gimp_stroke_options_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_stroke_options_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static guint stroke_options_signals[LAST_SIGNAL] = { 0 };
static GimpContextClass *parent_class = NULL;
GType
gimp_stroke_options_get_type (void)
{
static GType type = 0;
if (! type)
{
static const GTypeInfo info =
{
sizeof (GimpStrokeOptionsClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_stroke_options_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpStrokeOptions),
0, /* n_preallocs */
NULL /* instance_init */
};
type = g_type_register_static (GIMP_TYPE_CONTEXT,
"GimpStrokeOptions",
&info, 0);
}
return type;
}
static void
gimp_stroke_options_class_init (GimpStrokeOptionsClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GParamSpec *array_spec;
parent_class = g_type_class_peek_parent (klass);
object_class->set_property = gimp_stroke_options_set_property;
object_class->get_property = gimp_stroke_options_get_property;
klass->dash_info_changed = NULL;
stroke_options_signals[DASH_INFO_CHANGED] =
g_signal_new ("dash_info_changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpStrokeOptionsClass, dash_info_changed),
NULL, NULL,
gimp_marshal_VOID__ENUM,
G_TYPE_NONE, 1,
GIMP_TYPE_DASH_PRESET);
GIMP_CONFIG_INSTALL_PROP_ENUM (object_class, PROP_STYLE,
"style", NULL,
GIMP_TYPE_STROKE_STYLE,
GIMP_STROKE_STYLE_SOLID,
0);
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_WIDTH,
"width", NULL,
0.0, 2000.0, 6.0,
0);
GIMP_CONFIG_INSTALL_PROP_UNIT (object_class, PROP_UNIT,
"unit", NULL,
TRUE, FALSE, GIMP_UNIT_PIXEL,
0);
GIMP_CONFIG_INSTALL_PROP_ENUM (object_class, PROP_CAP_STYLE,
"cap-style", NULL,
GIMP_TYPE_CAP_STYLE, GIMP_CAP_BUTT,
0);
GIMP_CONFIG_INSTALL_PROP_ENUM (object_class, PROP_JOIN_STYLE,
"join-style", NULL,
GIMP_TYPE_JOIN_STYLE, GIMP_JOIN_MITER,
0);
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_MITER,
"miter", NULL,
0.0, 100.0, 10.0,
0);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_ANTIALIAS,
"antialias", NULL,
TRUE,
0);
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_DASH_OFFSET,
"dash-offset", NULL,
0.0, 2000.0, 0.0,
0);
array_spec = g_param_spec_double ("dash-length", NULL, NULL,
0.0, 2000.0, 1.0, G_PARAM_READWRITE);
g_object_class_install_property (object_class, PROP_DASH_INFO,
g_param_spec_value_array ("dash-info",
NULL, NULL,
array_spec,
GIMP_CONFIG_PARAM_FLAGS));
}
static void
gimp_stroke_options_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpStrokeOptions *options = GIMP_STROKE_OPTIONS (object);
switch (property_id)
{
case PROP_STYLE:
options->style = g_value_get_enum (value);
break;
case PROP_WIDTH:
options->width = g_value_get_double (value);
break;
case PROP_UNIT:
options->unit = g_value_get_int (value);
break;
case PROP_CAP_STYLE:
options->cap_style = g_value_get_enum (value);
break;
case PROP_JOIN_STYLE:
options->join_style = g_value_get_enum (value);
break;
case PROP_MITER:
options->miter = g_value_get_double (value);
break;
case PROP_ANTIALIAS:
options->antialias = g_value_get_boolean (value);
break;
case PROP_DASH_OFFSET:
options->dash_offset = g_value_get_double (value);
break;
case PROP_DASH_INFO:
{
GValueArray *val_array;
GValue *item;
gint i;
gdouble val;
if (options->dash_info)
g_array_free (options->dash_info, TRUE);
val_array = g_value_get_boxed (value);
if (val_array == NULL || val_array->n_values == 0)
{
options->dash_info = NULL;
}
else
{
options->dash_info = g_array_sized_new (FALSE, FALSE,
sizeof (gdouble),
val_array->n_values);
for (i=0; i < val_array->n_values; i++)
{
item = g_value_array_get_nth (val_array, i);
g_return_if_fail (G_VALUE_HOLDS_DOUBLE (item));
val = g_value_get_double (item);
options->dash_info = g_array_append_val (options->dash_info,
val);
}
}
g_signal_emit (options,
stroke_options_signals [DASH_INFO_CHANGED], 0,
GIMP_DASH_CUSTOM);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_stroke_options_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpStrokeOptions *options = GIMP_STROKE_OPTIONS (object);
switch (property_id)
{
case PROP_STYLE:
g_value_set_enum (value, options->style);
break;
case PROP_WIDTH:
g_value_set_double (value, options->width);
break;
case PROP_UNIT:
g_value_set_int (value, options->unit);
break;
case PROP_CAP_STYLE:
g_value_set_enum (value, options->cap_style);
break;
case PROP_JOIN_STYLE:
g_value_set_enum (value, options->join_style);
break;
case PROP_MITER:
g_value_set_double (value, options->miter);
break;
case PROP_ANTIALIAS:
g_value_set_boolean (value, options->antialias);
break;
case PROP_DASH_OFFSET:
g_value_set_double (value, options->dash_offset);
break;
case PROP_DASH_INFO:
{
GValueArray *val_array;
GValue item = { 0, };
gint i;
g_value_init (&item, G_TYPE_DOUBLE);
if (options->dash_info == NULL || options->dash_info->len == 0)
{
g_value_set_boxed (value, NULL);
}
else
{
val_array = g_value_array_new (options->dash_info->len);
for (i=0; i < options->dash_info->len; i++)
{
g_value_set_double (&item, g_array_index (options->dash_info,
gdouble,
i));
g_value_array_append (val_array, &item);
}
g_value_set_boxed (value, val_array);
}
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gimp_stroke_options_set_dash_preset (GimpStrokeOptions *options,
GimpDashPreset preset)
{
GArray *new_pattern;
gdouble dash;
gint i;
if (preset == GIMP_DASH_CUSTOM)
return;
new_pattern = g_array_new (FALSE, FALSE, sizeof (gdouble));
switch (preset)
{
case GIMP_DASH_LINE:
break;
case GIMP_DASH_LONG_DASH:
dash = 9.0; g_array_append_val (new_pattern, dash);
dash = 3.0; g_array_append_val (new_pattern, dash);
break;
case GIMP_DASH_MEDIUM_DASH:
dash = 6.0; g_array_append_val (new_pattern, dash);
dash = 6.0; g_array_append_val (new_pattern, dash);
break;
case GIMP_DASH_SHORT_DASH:
dash = 3.0; g_array_append_val (new_pattern, dash);
dash = 9.0; g_array_append_val (new_pattern, dash);
break;
case GIMP_DASH_SPARSE_DOTS:
for (i = 0; i < 2; i++)
{
dash = 1.0; g_array_append_val (new_pattern, dash);
dash = 5.0; g_array_append_val (new_pattern, dash);
}
break;
case GIMP_DASH_NORMAL_DOTS:
for (i = 0; i < 3; i++)
{
dash = 1.0; g_array_append_val (new_pattern, dash);
dash = 3.0; g_array_append_val (new_pattern, dash);
}
break;
case GIMP_DASH_DENSE_DOTS:
for (i = 0; i < 12; i++)
{
dash = 1.0; g_array_append_val (new_pattern, dash);
}
break;
case GIMP_DASH_STIPPLES:
for (i = 0; i < 24; i++)
{
dash = 0.5; g_array_append_val (new_pattern, dash);
}
break;
case GIMP_DASH_DASH_DOT:
dash = 7.0; g_array_append_val (new_pattern, dash);
dash = 2.0; g_array_append_val (new_pattern, dash);
dash = 1.0; g_array_append_val (new_pattern, dash);
dash = 2.0; g_array_append_val (new_pattern, dash);
break;
case GIMP_DASH_DASH_DOT_DOT:
dash = 7.0; g_array_append_val (new_pattern, dash);
for (i=0; i < 5; i++)
{
dash = 1.0; g_array_append_val (new_pattern, dash);
}
break;
default:
g_printerr ("Unknown Dash pattern: %d\n", preset);
}
if (options->dash_info != NULL)
g_array_free (options->dash_info, TRUE);
options->dash_info = NULL;
if (new_pattern->len >= 2)
options->dash_info = new_pattern;
else
g_array_free (new_pattern, TRUE);
g_signal_emit (options,
stroke_options_signals [DASH_INFO_CHANGED], 0,
preset);
g_object_notify (G_OBJECT (options), "dash-info");
}
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