gimp/libgimpwidgets/gimpcolorselector.c

274 lines
7.7 KiB
C

/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpcolorselector.c
* Copyright (C) 2002 Michael Natterer <mitch@gimp.org>
*
* based on:
* Colour selector module
* Copyright (C) 1999 Austin Donnelly <austin@greenend.org.uk>
*
* 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 2 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "libgimpcolor/gimpcolor.h"
#include "gimpwidgetstypes.h"
#include "gimpcolorselector.h"
#include "gimpwidgetsmarshal.h"
enum
{
COLOR_CHANGED,
CHANNEL_CHANGED,
LAST_SIGNAL
};
static void gimp_color_selector_class_init (GimpColorSelectorClass *klass);
static void gimp_color_selector_init (GimpColorSelector *selector);
static GtkVBoxClass *parent_class = NULL;
static guint selector_signals[LAST_SIGNAL] = { 0 };
GType
gimp_color_selector_get_type (void)
{
static GType selector_type = 0;
if (! selector_type)
{
static const GTypeInfo selector_info =
{
sizeof (GimpColorSelectorClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_color_selector_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpColorSelector),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_color_selector_init,
};
selector_type = g_type_register_static (GTK_TYPE_VBOX,
"GimpColorSelector",
&selector_info, 0);
}
return selector_type;
}
static void
gimp_color_selector_class_init (GimpColorSelectorClass *klass)
{
parent_class = g_type_class_peek_parent (klass);
selector_signals[COLOR_CHANGED] =
g_signal_new ("color-changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpColorSelectorClass, color_changed),
NULL, NULL,
_gimp_widgets_marshal_VOID__POINTER_POINTER,
G_TYPE_NONE, 2,
G_TYPE_POINTER,
G_TYPE_POINTER);
selector_signals[CHANNEL_CHANGED] =
g_signal_new ("channel-changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpColorSelectorClass, channel_changed),
NULL, NULL,
_gimp_widgets_marshal_VOID__INT,
G_TYPE_NONE, 1,
G_TYPE_INT);
klass->name = "Unnamed";
klass->help_id = NULL;
klass->stock_id = GTK_STOCK_SELECT_COLOR;
klass->set_toggles_visible = NULL;
klass->set_toggles_sensitive = NULL;
klass->set_show_alpha = NULL;
klass->set_color = NULL;
klass->set_channel = NULL;
klass->color_changed = NULL;
klass->channel_changed = NULL;
}
static void
gimp_color_selector_init (GimpColorSelector *selector)
{
selector->toggles_visible = TRUE;
selector->toggles_sensitive = TRUE;
selector->show_alpha = TRUE;
gimp_rgba_set (&selector->rgb, 0.0, 0.0, 0.0, 1.0);
gimp_rgb_to_hsv (&selector->rgb, &selector->hsv);
selector->channel = GIMP_COLOR_SELECTOR_HUE;
}
GtkWidget *
gimp_color_selector_new (GType selector_type,
const GimpRGB *rgb,
const GimpHSV *hsv,
GimpColorSelectorChannel channel)
{
GimpColorSelector *selector;
g_return_val_if_fail (g_type_is_a (selector_type, GIMP_TYPE_COLOR_SELECTOR),
NULL);
g_return_val_if_fail (rgb != NULL, NULL);
g_return_val_if_fail (hsv != NULL, NULL);
selector = g_object_new (selector_type, NULL);
gimp_color_selector_set_color (selector, rgb, hsv);
gimp_color_selector_set_channel (selector, channel);
return GTK_WIDGET (selector);
}
void
gimp_color_selector_set_toggles_visible (GimpColorSelector *selector,
gboolean visible)
{
g_return_if_fail (GIMP_IS_COLOR_SELECTOR (selector));
if (selector->toggles_visible != visible)
{
GimpColorSelectorClass *selector_class;
selector->toggles_visible = visible ? TRUE : FALSE;
selector_class = GIMP_COLOR_SELECTOR_GET_CLASS (selector);
if (selector_class->set_toggles_visible)
selector_class->set_toggles_visible (selector, visible);
}
}
void
gimp_color_selector_set_toggles_sensitive (GimpColorSelector *selector,
gboolean sensitive)
{
g_return_if_fail (GIMP_IS_COLOR_SELECTOR (selector));
if (selector->toggles_sensitive != sensitive)
{
GimpColorSelectorClass *selector_class;
selector->toggles_sensitive = sensitive ? TRUE : FALSE;
selector_class = GIMP_COLOR_SELECTOR_GET_CLASS (selector);
if (selector_class->set_toggles_sensitive)
selector_class->set_toggles_sensitive (selector, sensitive);
}
}
void
gimp_color_selector_set_show_alpha (GimpColorSelector *selector,
gboolean show_alpha)
{
g_return_if_fail (GIMP_IS_COLOR_SELECTOR (selector));
if (show_alpha != selector->show_alpha)
{
GimpColorSelectorClass *selector_class;
selector->show_alpha = show_alpha ? TRUE : FALSE;
selector_class = GIMP_COLOR_SELECTOR_GET_CLASS (selector);
if (selector_class->set_show_alpha)
selector_class->set_show_alpha (selector, show_alpha);
}
}
void
gimp_color_selector_set_color (GimpColorSelector *selector,
const GimpRGB *rgb,
const GimpHSV *hsv)
{
GimpColorSelectorClass *selector_class;
g_return_if_fail (GIMP_IS_COLOR_SELECTOR (selector));
g_return_if_fail (rgb != NULL);
g_return_if_fail (hsv != NULL);
selector->rgb = *rgb;
selector->hsv = *hsv;
selector_class = GIMP_COLOR_SELECTOR_GET_CLASS (selector);
if (selector_class->set_color)
selector_class->set_color (selector, rgb, hsv);
gimp_color_selector_color_changed (selector);
}
void
gimp_color_selector_set_channel (GimpColorSelector *selector,
GimpColorSelectorChannel channel)
{
g_return_if_fail (GIMP_IS_COLOR_SELECTOR (selector));
if (channel != selector->channel)
{
GimpColorSelectorClass *selector_class;
selector->channel = channel;
selector_class = GIMP_COLOR_SELECTOR_GET_CLASS (selector);
if (selector_class->set_channel)
selector_class->set_channel (selector, channel);
gimp_color_selector_channel_changed (selector);
}
}
void
gimp_color_selector_color_changed (GimpColorSelector *selector)
{
g_return_if_fail (GIMP_IS_COLOR_SELECTOR (selector));
g_signal_emit (selector, selector_signals[COLOR_CHANGED], 0,
&selector->rgb, &selector->hsv);
}
void
gimp_color_selector_channel_changed (GimpColorSelector *selector)
{
g_return_if_fail (GIMP_IS_COLOR_SELECTOR (selector));
g_signal_emit (selector, selector_signals[CHANNEL_CHANGED], 0,
selector->channel);
}