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PIKApp/libpikawidgets/pikacolordisplay.c

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/* LIBPIKA - The PIKA Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* pikacolordisplay.c
* Copyright (C) 2002 Michael Natterer <mitch@gimp.org>
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "libpikabase/pikabase.h"
#include "libpikacolor/pikacolor.h"
#include "libpikaconfig/pikaconfig.h"
#include "pikawidgetstypes.h"
#include "pikacolordisplay.h"
#include "pikaicons.h"
/**
* SECTION: pikacolordisplay
* @title: PikaColorDisplay
* @short_description: Pluggable PIKA display color correction modules.
* @see_also: #GModule, #GTypeModule, #PikaModule
*
* Functions and definitions for creating pluggable PIKA
* display color correction modules.
**/
enum
{
PROP_0,
PROP_ENABLED,
PROP_COLOR_CONFIG,
PROP_COLOR_MANAGED
};
enum
{
CHANGED,
LAST_SIGNAL
};
struct _PikaColorDisplayPrivate
{
gboolean enabled;
PikaColorConfig *config;
PikaColorManaged *managed;
};
#define GET_PRIVATE(obj) (((PikaColorDisplay *) (obj))->priv)
static void pika_color_display_constructed (GObject *object);
static void pika_color_display_dispose (GObject *object);
static void pika_color_display_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void pika_color_display_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void pika_color_display_set_color_config (PikaColorDisplay *display,
PikaColorConfig *config);
static void pika_color_display_set_color_managed (PikaColorDisplay *display,
PikaColorManaged *managed);
G_DEFINE_TYPE_WITH_CODE (PikaColorDisplay, pika_color_display, G_TYPE_OBJECT,
G_ADD_PRIVATE (PikaColorDisplay)
G_IMPLEMENT_INTERFACE (PIKA_TYPE_CONFIG, NULL))
#define parent_class pika_color_display_parent_class
static guint display_signals[LAST_SIGNAL] = { 0 };
static void
pika_color_display_class_init (PikaColorDisplayClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = pika_color_display_constructed;
object_class->dispose = pika_color_display_dispose;
object_class->set_property = pika_color_display_set_property;
object_class->get_property = pika_color_display_get_property;
g_object_class_install_property (object_class, PROP_ENABLED,
g_param_spec_boolean ("enabled",
"Enabled",
"Whether this display filter is enabled",
TRUE,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_COLOR_CONFIG,
g_param_spec_object ("color-config",
"Color Config",
"The color config used for this filter",
PIKA_TYPE_COLOR_CONFIG,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_COLOR_MANAGED,
g_param_spec_object ("color-managed",
"Color Managed",
"The color managed pixel source that is filtered",
PIKA_TYPE_COLOR_MANAGED,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
display_signals[CHANGED] =
g_signal_new ("changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (PikaColorDisplayClass, changed),
NULL, NULL, NULL,
G_TYPE_NONE, 0);
klass->name = "Unnamed";
klass->help_id = NULL;
klass->icon_name = PIKA_ICON_DISPLAY_FILTER;
klass->convert_buffer = NULL;
klass->configure = NULL;
klass->changed = NULL;
}
static void
pika_color_display_init (PikaColorDisplay *display)
{
display->priv = pika_color_display_get_instance_private (display);
}
static void
pika_color_display_constructed (GObject *object)
{
G_OBJECT_CLASS (parent_class)->constructed (object);
/* emit an initial "changed" signal after all construct properties are set */
pika_color_display_changed (PIKA_COLOR_DISPLAY (object));
}
static void
pika_color_display_dispose (GObject *object)
{
PikaColorDisplayPrivate *private = GET_PRIVATE (object);
if (private->config)
{
g_signal_handlers_disconnect_by_func (private->config,
pika_color_display_changed,
object);
g_object_unref (private->config);
private->config = NULL;
}
if (private->managed)
{
g_signal_handlers_disconnect_by_func (private->managed,
pika_color_display_changed,
object);
g_object_unref (private->managed);
private->managed = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
pika_color_display_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
PikaColorDisplay *display = PIKA_COLOR_DISPLAY (object);
PikaColorDisplayPrivate *private = GET_PRIVATE (object);
switch (property_id)
{
case PROP_ENABLED:
private->enabled = g_value_get_boolean (value);
break;
case PROP_COLOR_CONFIG:
pika_color_display_set_color_config (display,
g_value_get_object (value));
break;
case PROP_COLOR_MANAGED:
pika_color_display_set_color_managed (display,
g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
pika_color_display_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
PikaColorDisplayPrivate *private = GET_PRIVATE (object);
switch (property_id)
{
case PROP_ENABLED:
g_value_set_boolean (value, private->enabled);
break;
case PROP_COLOR_CONFIG:
g_value_set_object (value, private->config);
break;
case PROP_COLOR_MANAGED:
g_value_set_object (value, private->managed);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
pika_color_display_set_color_config (PikaColorDisplay *display,
PikaColorConfig *config)
{
PikaColorDisplayPrivate *private = GET_PRIVATE (display);
g_return_if_fail (private->config == NULL);
if (config)
{
private->config = g_object_ref (config);
g_signal_connect_swapped (private->config, "notify",
G_CALLBACK (pika_color_display_changed),
display);
}
}
static void
pika_color_display_set_color_managed (PikaColorDisplay *display,
PikaColorManaged *managed)
{
PikaColorDisplayPrivate *private = GET_PRIVATE (display);
g_return_if_fail (private->managed == NULL);
if (managed)
{
private->managed = g_object_ref (managed);
g_signal_connect_swapped (private->managed, "profile-changed",
G_CALLBACK (pika_color_display_changed),
display);
}
}
/**
* pika_color_display_clone:
* @display: a #PikaColorDisplay
*
* Creates a copy of @display.
*
* Returns: (transfer full): a duplicate of @display.
*
* Since: 2.0
**/
PikaColorDisplay *
pika_color_display_clone (PikaColorDisplay *display)
{
g_return_val_if_fail (PIKA_IS_COLOR_DISPLAY (display), NULL);
return PIKA_COLOR_DISPLAY (pika_config_duplicate (PIKA_CONFIG (display)));
}
/**
* pika_color_display_convert_buffer:
* @display: a #PikaColorDisplay
* @buffer: a #GeglBuffer
* @area: area in @buffer to convert
*
* Converts all pixels in @area of @buffer.
*
* Since: 2.10
**/
void
pika_color_display_convert_buffer (PikaColorDisplay *display,
GeglBuffer *buffer,
GeglRectangle *area)
{
PikaColorDisplayPrivate *private;
g_return_if_fail (PIKA_IS_COLOR_DISPLAY (display));
g_return_if_fail (GEGL_IS_BUFFER (buffer));
private = GET_PRIVATE (display);
if (private->enabled &&
PIKA_COLOR_DISPLAY_GET_CLASS (display)->convert_buffer)
{
PIKA_COLOR_DISPLAY_GET_CLASS (display)->convert_buffer (display, buffer,
area);
}
}
/**
* pika_color_display_load_state:
* @display: a #PikaColorDisplay
* @state: a #PikaParasite
*
* Configures @display from the contents of the parasite @state.
* @state must be a properly serialized configuration for a
* #PikaColorDisplay, such as saved by pika_color_display_save_state().
*
* Since: 2.0
**/
void
pika_color_display_load_state (PikaColorDisplay *display,
PikaParasite *state)
{
g_return_if_fail (PIKA_IS_COLOR_DISPLAY (display));
g_return_if_fail (state != NULL);
pika_config_deserialize_parasite (PIKA_CONFIG (display),
state,
NULL, NULL);
}
/**
* pika_color_display_save_state:
* @display: a #PikaColorDisplay
*
* Saves the configuration state of @display as a new parasite.
*
* Returns: (transfer full): a #PikaParasite
*
* Since: 2.0
**/
PikaParasite *
pika_color_display_save_state (PikaColorDisplay *display)
{
g_return_val_if_fail (PIKA_IS_COLOR_DISPLAY (display), NULL);
return pika_config_serialize_to_parasite (PIKA_CONFIG (display),
"Display/Proof",
PIKA_PARASITE_PERSISTENT,
NULL);
}
/**
* pika_color_display_configure:
* @display: a #PikaColorDisplay
*
* Creates a configuration widget for @display which can be added to a
* container widget.
*
* Returns: (transfer full): a new configuration widget for @display, or
* %NULL if no specific widget exists.
*
* Since: 2.0
**/
GtkWidget *
pika_color_display_configure (PikaColorDisplay *display)
{
g_return_val_if_fail (PIKA_IS_COLOR_DISPLAY (display), NULL);
if (PIKA_COLOR_DISPLAY_GET_CLASS (display)->configure)
return PIKA_COLOR_DISPLAY_GET_CLASS (display)->configure (display);
return NULL;
}
void
pika_color_display_configure_reset (PikaColorDisplay *display)
{
g_return_if_fail (PIKA_IS_COLOR_DISPLAY (display));
pika_config_reset (PIKA_CONFIG (display));
}
void
pika_color_display_changed (PikaColorDisplay *display)
{
g_return_if_fail (PIKA_IS_COLOR_DISPLAY (display));
g_signal_emit (display, display_signals[CHANGED], 0);
}
void
pika_color_display_set_enabled (PikaColorDisplay *display,
gboolean enabled)
{
PikaColorDisplayPrivate *private;
g_return_if_fail (PIKA_IS_COLOR_DISPLAY (display));
private = GET_PRIVATE (display);
if (enabled != private->enabled)
{
g_object_set (display,
"enabled", enabled,
NULL);
}
}
gboolean
pika_color_display_get_enabled (PikaColorDisplay *display)
{
g_return_val_if_fail (PIKA_IS_COLOR_DISPLAY (display), FALSE);
return GET_PRIVATE (display)->enabled;
}
/**
* pika_color_display_get_config:
* @display:
*
* Returns: (transfer none): a pointer to the #PikaColorConfig
* object or %NULL.
*
* Since: 2.4
**/
PikaColorConfig *
pika_color_display_get_config (PikaColorDisplay *display)
{
g_return_val_if_fail (PIKA_IS_COLOR_DISPLAY (display), NULL);
return GET_PRIVATE (display)->config;
}
/**
* pika_color_display_get_managed:
* @display:
*
* Returns: (transfer none): a pointer to the #PikaColorManaged
* object or %NULL.
*
* Since: 2.4
**/
PikaColorManaged *
pika_color_display_get_managed (PikaColorDisplay *display)
{
g_return_val_if_fail (PIKA_IS_COLOR_DISPLAY (display), NULL);
return GET_PRIVATE (display)->managed;
}
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