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gimp/app/core/gimpstrokeoptions.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995-1999 Spencer Kimball and Peter Mattis
*
* gimpstrokeoptions.c
* Copyright (C) 2003 Simon Budig
* Copyright (C) 2004 Michael Natterer <mitch@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 <gdk-pixbuf/gdk-pixbuf.h>
#include <gegl.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpconfig/gimpconfig.h"
#include "core-types.h"
#include "config/gimpcoreconfig.h"
#include "gimp.h"
#include "gimpcontext.h"
#include "gimpdashpattern.h"
#include "gimpmarshal.h"
#include "gimppaintinfo.h"
#include "gimpparamspecs.h"
#include "gimpstrokeoptions.h"
#include "paint/gimppaintoptions.h"
#include "gimp-intl.h"
enum
{
PROP_0,
PROP_METHOD,
PROP_STYLE,
PROP_WIDTH,
PROP_UNIT,
PROP_CAP_STYLE,
PROP_JOIN_STYLE,
PROP_MITER_LIMIT,
PROP_ANTIALIAS,
PROP_DASH_UNIT,
PROP_DASH_OFFSET,
PROP_DASH_INFO,
PROP_PAINT_OPTIONS,
PROP_EMULATE_DYNAMICS
};
enum
{
DASH_INFO_CHANGED,
LAST_SIGNAL
};
typedef struct _GimpStrokeOptionsPrivate GimpStrokeOptionsPrivate;
struct _GimpStrokeOptionsPrivate
{
GimpStrokeMethod method;
/* options for method == LIBART */
gdouble width;
GimpUnit unit;
GimpCapStyle cap_style;
GimpJoinStyle join_style;
gdouble miter_limit;
gdouble dash_offset;
GArray *dash_info;
/* options for method == PAINT_TOOL */
GimpPaintOptions *paint_options;
gboolean emulate_dynamics;
};
#define GET_PRIVATE(options) \
((GimpStrokeOptionsPrivate *) gimp_stroke_options_get_instance_private ((GimpStrokeOptions *) (options)))
static void gimp_stroke_options_config_iface_init (gpointer iface,
gpointer iface_data);
static void gimp_stroke_options_finalize (GObject *object);
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 GimpConfig * gimp_stroke_options_duplicate (GimpConfig *config);
G_DEFINE_TYPE_WITH_CODE (GimpStrokeOptions, gimp_stroke_options,
GIMP_TYPE_FILL_OPTIONS,
G_ADD_PRIVATE (GimpStrokeOptions)
G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONFIG,
gimp_stroke_options_config_iface_init))
#define parent_class gimp_stroke_options_parent_class
static GimpConfigInterface *parent_config_iface = NULL;
static guint stroke_options_signals[LAST_SIGNAL] = { 0 };
static void
gimp_stroke_options_class_init (GimpStrokeOptionsClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GParamSpec *array_spec;
object_class->finalize = gimp_stroke_options_finalize;
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_PROP_ENUM (object_class, PROP_METHOD,
"method",
_("Method"),
NULL,
GIMP_TYPE_STROKE_METHOD,
GIMP_STROKE_LINE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_DOUBLE (object_class, PROP_WIDTH,
"width",
_("Line width"),
NULL,
0.0, 2000.0, 6.0,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_UNIT (object_class, PROP_UNIT,
"unit",
_("Unit"),
NULL,
TRUE, FALSE, GIMP_UNIT_PIXEL,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_ENUM (object_class, PROP_CAP_STYLE,
"cap-style",
_("Cap style"),
NULL,
GIMP_TYPE_CAP_STYLE, GIMP_CAP_BUTT,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_ENUM (object_class, PROP_JOIN_STYLE,
"join-style",
_("Join style"),
NULL,
GIMP_TYPE_JOIN_STYLE, GIMP_JOIN_MITER,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_DOUBLE (object_class, PROP_MITER_LIMIT,
"miter-limit",
_("Miter limit"),
_("Convert a mitered join to a bevelled "
"join if the miter would extend to a "
"distance of more than miter-limit * "
"line-width from the actual join point."),
0.0, 100.0, 10.0,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_DOUBLE (object_class, PROP_DASH_OFFSET,
"dash-offset",
_("Dash offset"),
NULL,
0.0, 2000.0, 0.0,
GIMP_PARAM_STATIC_STRINGS);
array_spec = g_param_spec_double ("dash-length", NULL, NULL,
0.0, 2000.0, 1.0, GIMP_PARAM_READWRITE);
g_object_class_install_property (object_class, PROP_DASH_INFO,
gimp_param_spec_value_array ("dash-info",
NULL, NULL,
array_spec,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_FLAGS));
GIMP_CONFIG_PROP_OBJECT (object_class, PROP_PAINT_OPTIONS,
"paint-options",
NULL, NULL,
GIMP_TYPE_PAINT_OPTIONS,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_EMULATE_DYNAMICS,
"emulate-brush-dynamics",
_("Emulate brush dynamics"),
NULL,
FALSE,
GIMP_PARAM_STATIC_STRINGS);
}
static void
gimp_stroke_options_config_iface_init (gpointer iface,
gpointer iface_data)
{
GimpConfigInterface *config_iface = (GimpConfigInterface *) iface;
parent_config_iface = g_type_interface_peek_parent (config_iface);
if (! parent_config_iface)
parent_config_iface = g_type_default_interface_peek (GIMP_TYPE_CONFIG);
config_iface->duplicate = gimp_stroke_options_duplicate;
}
static void
gimp_stroke_options_init (GimpStrokeOptions *options)
{
}
static void
gimp_stroke_options_finalize (GObject *object)
{
GimpStrokeOptionsPrivate *private = GET_PRIVATE (object);
if (private->dash_info)
{
gimp_dash_pattern_free (private->dash_info);
private->dash_info = NULL;
}
g_clear_object (&private->paint_options);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_stroke_options_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpStrokeOptions *options = GIMP_STROKE_OPTIONS (object);
GimpStrokeOptionsPrivate *private = GET_PRIVATE (object);
switch (property_id)
{
case PROP_METHOD:
private->method = g_value_get_enum (value);
break;
case PROP_WIDTH:
private->width = g_value_get_double (value);
break;
case PROP_UNIT:
private->unit = g_value_get_int (value);
break;
case PROP_CAP_STYLE:
private->cap_style = g_value_get_enum (value);
break;
case PROP_JOIN_STYLE:
private->join_style = g_value_get_enum (value);
break;
case PROP_MITER_LIMIT:
private->miter_limit = g_value_get_double (value);
break;
case PROP_DASH_OFFSET:
private->dash_offset = g_value_get_double (value);
break;
case PROP_DASH_INFO:
{
GimpValueArray *value_array = g_value_get_boxed (value);
GArray *pattern;
pattern = gimp_dash_pattern_from_value_array (value_array);
gimp_stroke_options_take_dash_pattern (options, GIMP_DASH_CUSTOM,
pattern);
}
break;
case PROP_PAINT_OPTIONS:
if (private->paint_options)
g_object_unref (private->paint_options);
private->paint_options = g_value_dup_object (value);
break;
case PROP_EMULATE_DYNAMICS:
private->emulate_dynamics = g_value_get_boolean (value);
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)
{
GimpStrokeOptionsPrivate *private = GET_PRIVATE (object);
switch (property_id)
{
case PROP_METHOD:
g_value_set_enum (value, private->method);
break;
case PROP_WIDTH:
g_value_set_double (value, private->width);
break;
case PROP_UNIT:
g_value_set_int (value, private->unit);
break;
case PROP_CAP_STYLE:
g_value_set_enum (value, private->cap_style);
break;
case PROP_JOIN_STYLE:
g_value_set_enum (value, private->join_style);
break;
case PROP_MITER_LIMIT:
g_value_set_double (value, private->miter_limit);
break;
case PROP_DASH_OFFSET:
g_value_set_double (value, private->dash_offset);
break;
case PROP_DASH_INFO:
{
GimpValueArray *value_array;
value_array = gimp_dash_pattern_to_value_array (private->dash_info);
g_value_take_boxed (value, value_array);
}
break;
case PROP_PAINT_OPTIONS:
g_value_set_object (value, private->paint_options);
break;
case PROP_EMULATE_DYNAMICS:
g_value_set_boolean (value, private->emulate_dynamics);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static GimpConfig *
gimp_stroke_options_duplicate (GimpConfig *config)
{
GimpStrokeOptions *options = GIMP_STROKE_OPTIONS (config);
GimpStrokeOptionsPrivate *private = GET_PRIVATE (options);
GimpStrokeOptions *new_options;
new_options = GIMP_STROKE_OPTIONS (parent_config_iface->duplicate (config));
if (private->paint_options)
{
GObject *paint_options;
paint_options = gimp_config_duplicate (GIMP_CONFIG (private->paint_options));
g_object_set (new_options, "paint-options", paint_options, NULL);
g_object_unref (paint_options);
}
return GIMP_CONFIG (new_options);
}
/* public functions */
GimpStrokeOptions *
gimp_stroke_options_new (Gimp *gimp,
GimpContext *context,
gboolean use_context_color)
{
GimpPaintInfo *paint_info = NULL;
GimpStrokeOptions *options;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (context == NULL || GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (use_context_color == FALSE || context != NULL, NULL);
if (context)
paint_info = gimp_context_get_paint_info (context);
if (! paint_info)
paint_info = gimp_paint_info_get_standard (gimp);
options = g_object_new (GIMP_TYPE_STROKE_OPTIONS,
"gimp", gimp,
"paint-info", paint_info,
NULL);
if (use_context_color)
{
gimp_context_define_properties (GIMP_CONTEXT (options),
GIMP_CONTEXT_PROP_MASK_FOREGROUND |
GIMP_CONTEXT_PROP_MASK_PATTERN,
FALSE);
gimp_context_set_parent (GIMP_CONTEXT (options), context);
}
return options;
}
GimpStrokeMethod
gimp_stroke_options_get_method (GimpStrokeOptions *options)
{
g_return_val_if_fail (GIMP_IS_STROKE_OPTIONS (options),
GIMP_STROKE_LINE);
return GET_PRIVATE (options)->method;
}
gdouble
gimp_stroke_options_get_width (GimpStrokeOptions *options)
{
g_return_val_if_fail (GIMP_IS_STROKE_OPTIONS (options), 1.0);
return GET_PRIVATE (options)->width;
}
GimpUnit
gimp_stroke_options_get_unit (GimpStrokeOptions *options)
{
g_return_val_if_fail (GIMP_IS_STROKE_OPTIONS (options), GIMP_UNIT_PIXEL);
return GET_PRIVATE (options)->unit;
}
GimpCapStyle
gimp_stroke_options_get_cap_style (GimpStrokeOptions *options)
{
g_return_val_if_fail (GIMP_IS_STROKE_OPTIONS (options), GIMP_CAP_BUTT);
return GET_PRIVATE (options)->cap_style;
}
GimpJoinStyle
gimp_stroke_options_get_join_style (GimpStrokeOptions *options)
{
g_return_val_if_fail (GIMP_IS_STROKE_OPTIONS (options), GIMP_JOIN_MITER);
return GET_PRIVATE (options)->join_style;
}
gdouble
gimp_stroke_options_get_miter_limit (GimpStrokeOptions *options)
{
g_return_val_if_fail (GIMP_IS_STROKE_OPTIONS (options), 1.0);
return GET_PRIVATE (options)->miter_limit;
}
gdouble
gimp_stroke_options_get_dash_offset (GimpStrokeOptions *options)
{
g_return_val_if_fail (GIMP_IS_STROKE_OPTIONS (options), 0.0);
return GET_PRIVATE (options)->dash_offset;
}
GArray *
gimp_stroke_options_get_dash_info (GimpStrokeOptions *options)
{
g_return_val_if_fail (GIMP_IS_STROKE_OPTIONS (options), NULL);
return GET_PRIVATE (options)->dash_info;
}
GimpPaintOptions *
gimp_stroke_options_get_paint_options (GimpStrokeOptions *options)
{
g_return_val_if_fail (GIMP_IS_STROKE_OPTIONS (options), NULL);
return GET_PRIVATE (options)->paint_options;
}
gboolean
gimp_stroke_options_get_emulate_dynamics (GimpStrokeOptions *options)
{
g_return_val_if_fail (GIMP_IS_STROKE_OPTIONS (options), FALSE);
return GET_PRIVATE (options)->emulate_dynamics;
}
/**
* gimp_stroke_options_take_dash_pattern:
* @options: a #GimpStrokeOptions object
* @preset: a value out of the #GimpDashPreset enum
* @pattern: a #GArray or %NULL if @preset is not %GIMP_DASH_CUSTOM
*
* Sets the dash pattern. Either a @preset is passed and @pattern is
* %NULL or @preset is %GIMP_DASH_CUSTOM and @pattern is the #GArray
* to use as the dash pattern. Note that this function takes ownership
* of the passed pattern.
*/
void
gimp_stroke_options_take_dash_pattern (GimpStrokeOptions *options,
GimpDashPreset preset,
GArray *pattern)
{
GimpStrokeOptionsPrivate *private;
g_return_if_fail (GIMP_IS_STROKE_OPTIONS (options));
g_return_if_fail (preset == GIMP_DASH_CUSTOM || pattern == NULL);
private = GET_PRIVATE (options);
if (preset != GIMP_DASH_CUSTOM)
pattern = gimp_dash_pattern_new_from_preset (preset);
if (private->dash_info)
gimp_dash_pattern_free (private->dash_info);
private->dash_info = pattern;
g_object_notify (G_OBJECT (options), "dash-info");
g_signal_emit (options, stroke_options_signals [DASH_INFO_CHANGED], 0,
preset);
}
void
gimp_stroke_options_prepare (GimpStrokeOptions *options,
GimpContext *context,
GimpPaintOptions *paint_options)
{
GimpStrokeOptionsPrivate *private;
g_return_if_fail (GIMP_IS_STROKE_OPTIONS (options));
g_return_if_fail (GIMP_IS_CONTEXT (context));
g_return_if_fail (paint_options == NULL ||
GIMP_IS_PAINT_OPTIONS (paint_options));
private = GET_PRIVATE (options);
switch (private->method)
{
case GIMP_STROKE_LINE:
break;
case GIMP_STROKE_PAINT_METHOD:
{
GimpPaintInfo *paint_info = GIMP_CONTEXT (options)->paint_info;
if (paint_options)
{
g_return_if_fail (paint_info == paint_options->paint_info);
/* undefine the paint-relevant context properties and get them
* from the passed context
*/
gimp_context_define_properties (GIMP_CONTEXT (paint_options),
GIMP_CONTEXT_PROP_MASK_PAINT,
FALSE);
gimp_context_set_parent (GIMP_CONTEXT (paint_options), context);
g_object_ref (paint_options);
}
else
{
GimpCoreConfig *config = context->gimp->config;
GimpContextPropMask global_props = 0;
paint_options =
gimp_config_duplicate (GIMP_CONFIG (paint_info->paint_options));
/* FG and BG are always shared between all tools */
global_props |= GIMP_CONTEXT_PROP_MASK_FOREGROUND;
global_props |= GIMP_CONTEXT_PROP_MASK_BACKGROUND;
if (config->global_brush)
global_props |= GIMP_CONTEXT_PROP_MASK_BRUSH;
if (config->global_dynamics)
global_props |= GIMP_CONTEXT_PROP_MASK_DYNAMICS;
if (config->global_pattern)
global_props |= GIMP_CONTEXT_PROP_MASK_PATTERN;
if (config->global_palette)
global_props |= GIMP_CONTEXT_PROP_MASK_PALETTE;
if (config->global_gradient)
global_props |= GIMP_CONTEXT_PROP_MASK_GRADIENT;
if (config->global_font)
global_props |= GIMP_CONTEXT_PROP_MASK_FONT;
gimp_context_copy_properties (context,
GIMP_CONTEXT (paint_options),
global_props);
}
g_object_set (options, "paint-options", paint_options, NULL);
g_object_unref (paint_options);
}
break;
default:
g_return_if_reached ();
}
}
void
gimp_stroke_options_finish (GimpStrokeOptions *options)
{
g_return_if_fail (GIMP_IS_STROKE_OPTIONS (options));
g_object_set (options, "paint-options", NULL, NULL);
}
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