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gimp/app/widgets/gimpcolordialog.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* color_dialog module (C) 1998 Austin Donnelly <austin@greenend.org.uk>
*
* 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 <gtk/gtk.h>
#include "libgimpcolor/gimpcolor.h"
#include "libgimpconfig/gimpconfig.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "config/gimpcoreconfig.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpmarshal.h"
#include "core/gimpviewable.h"
#include "gimpcolordialog.h"
#include "gimpdialogfactory.h"
#include "gimphelp-ids.h"
#include "gimp-intl.h"
#define RESPONSE_RESET 1
#define COLOR_AREA_SIZE 20
enum
{
UPDATE,
LAST_SIGNAL
};
static void gimp_color_dialog_dispose (GObject *object);
static void gimp_color_dialog_response (GtkDialog *dialog,
gint response_id);
static void gimp_color_dialog_help_func (const gchar *help_id,
gpointer help_data);
static void gimp_color_dialog_color_changed (GimpColorSelection *selection,
GimpColorDialog *dialog);
static void gimp_color_history_color_clicked (GtkWidget *widget,
GimpColorDialog *dialog);
static void gimp_color_history_color_changed (GtkWidget *widget,
gpointer data);
static void gimp_color_history_add_clicked (GtkWidget *widget,
GimpColorDialog *dialog);
G_DEFINE_TYPE (GimpColorDialog, gimp_color_dialog, GIMP_TYPE_VIEWABLE_DIALOG)
#define parent_class gimp_color_dialog_parent_class
static guint color_dialog_signals[LAST_SIGNAL] = { 0, };
static GList *color_dialogs = NULL;
static void
gimp_color_dialog_class_init (GimpColorDialogClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkDialogClass *dialog_class = GTK_DIALOG_CLASS (klass);
object_class->dispose = gimp_color_dialog_dispose;
dialog_class->response = gimp_color_dialog_response;
color_dialog_signals[UPDATE] =
g_signal_new ("update",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GimpColorDialogClass, update),
NULL, NULL,
gimp_marshal_VOID__BOXED_ENUM,
G_TYPE_NONE, 2,
GIMP_TYPE_RGB,
GIMP_TYPE_COLOR_DIALOG_STATE);
}
static void
gimp_color_dialog_init (GimpColorDialog *dialog)
{
GtkWidget *table;
GtkWidget *button;
GtkWidget *arrow;
gint i;
color_dialogs = g_list_prepend (color_dialogs, dialog);
gtk_dialog_add_buttons (GTK_DIALOG (dialog),
GIMP_STOCK_RESET, RESPONSE_RESET,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
RESPONSE_RESET,
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
dialog->selection = gimp_color_selection_new ();
gtk_container_set_border_width (GTK_CONTAINER (dialog->selection), 12);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox),
dialog->selection);
gtk_widget_show (dialog->selection);
g_signal_connect (dialog->selection, "color-changed",
G_CALLBACK (gimp_color_dialog_color_changed),
dialog);
/* The color history */
table = gtk_table_new (2, 1 + COLOR_HISTORY_SIZE / 2, TRUE);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_table_set_col_spacings (GTK_TABLE (table), 2);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
gtk_box_pack_end (GTK_BOX (GIMP_COLOR_SELECTION (dialog->selection)->right_vbox),
table, FALSE, FALSE, 0);
gtk_widget_show (table);
button = gtk_button_new ();
gtk_table_attach_defaults (GTK_TABLE (table), button, 0, 1, 0, 1);
gimp_help_set_help_data (button,
_("Add the current color to the color history"),
NULL);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (gimp_color_history_add_clicked),
dialog);
arrow = gtk_arrow_new (GTK_ARROW_RIGHT, GTK_SHADOW_OUT);
gtk_container_add (GTK_CONTAINER (button), arrow);
gtk_widget_show (arrow);
for (i = 0; i < COLOR_HISTORY_SIZE; i++)
{
GimpRGB history_color;
gint row, column;
column = i % (COLOR_HISTORY_SIZE / 2);
row = i / (COLOR_HISTORY_SIZE / 2);
button = gtk_button_new ();
gtk_widget_set_size_request (button, COLOR_AREA_SIZE, COLOR_AREA_SIZE);
gtk_table_attach_defaults (GTK_TABLE (table), button,
column + 1, column + 2, row, row + 1);
gtk_widget_show (button);
color_history_get (i, &history_color);
dialog->history[i] = gimp_color_area_new (&history_color,
GIMP_COLOR_AREA_SMALL_CHECKS,
GDK_BUTTON2_MASK);
gtk_container_add (GTK_CONTAINER (button), dialog->history[i]);
gtk_widget_show (dialog->history[i]);
g_signal_connect (button, "clicked",
G_CALLBACK (gimp_color_history_color_clicked),
dialog);
g_signal_connect (dialog->history[i], "color-changed",
G_CALLBACK (gimp_color_history_color_changed),
GINT_TO_POINTER (i));
}
}
static void
gimp_color_dialog_dispose (GObject *object)
{
GimpColorDialog *dialog = GIMP_COLOR_DIALOG (object);
color_dialogs = g_list_remove (color_dialogs, dialog);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gimp_color_dialog_response (GtkDialog *gtk_dialog,
gint response_id)
{
GimpColorDialog *dialog = GIMP_COLOR_DIALOG (gtk_dialog);
GimpRGB color;
switch (response_id)
{
case RESPONSE_RESET:
gimp_color_selection_reset (GIMP_COLOR_SELECTION (dialog->selection));
break;
case GTK_RESPONSE_OK:
gimp_color_history_add_clicked (NULL, dialog);
gimp_color_selection_get_color (GIMP_COLOR_SELECTION (dialog->selection),
&color);
g_signal_emit (dialog, color_dialog_signals[UPDATE], 0,
&color, GIMP_COLOR_DIALOG_OK);
break;
default:
gimp_color_selection_get_old_color (GIMP_COLOR_SELECTION (dialog->selection),
&color);
g_signal_emit (dialog, color_dialog_signals[UPDATE], 0,
&color, GIMP_COLOR_DIALOG_CANCEL);
break;
}
}
/* public functions */
GtkWidget *
gimp_color_dialog_new (GimpViewable *viewable,
GimpContext *context,
const gchar *title,
const gchar *stock_id,
const gchar *desc,
GtkWidget *parent,
GimpDialogFactory *dialog_factory,
const gchar *dialog_identifier,
const GimpRGB *color,
gboolean wants_updates,
gboolean show_alpha)
{
GimpColorDialog *dialog;
const gchar *role;
g_return_val_if_fail (viewable == NULL || GIMP_IS_VIEWABLE (viewable), NULL);
g_return_val_if_fail (context == NULL || GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (parent), NULL);
g_return_val_if_fail (dialog_factory == NULL ||
GIMP_IS_DIALOG_FACTORY (dialog_factory), NULL);
g_return_val_if_fail (dialog_factory == NULL || dialog_identifier != NULL,
NULL);
g_return_val_if_fail (color != NULL, NULL);
if (! context)
g_warning ("gimp_color_dialog_new() called with a NULL context");
role = dialog_identifier ? dialog_identifier : "gimp-color-selector";
dialog = g_object_new (GIMP_TYPE_COLOR_DIALOG,
"title", title,
"role", role,
"help-func", gimp_color_dialog_help_func,
"help-id", GIMP_HELP_COLOR_DIALOG,
"stock-id", stock_id,
"description", desc,
"parent", parent,
NULL);
if (viewable)
gimp_viewable_dialog_set_viewable (GIMP_VIEWABLE_DIALOG (dialog),
viewable, context);
else
gtk_widget_hide (GIMP_VIEWABLE_DIALOG (dialog)->icon->parent->parent);
dialog->wants_updates = wants_updates;
if (dialog_factory)
gimp_dialog_factory_add_foreign (dialog_factory, dialog_identifier,
GTK_WIDGET (dialog));
gimp_color_selection_set_show_alpha (GIMP_COLOR_SELECTION (dialog->selection),
show_alpha);
if (context)
{
g_object_set_data (G_OBJECT (context->gimp->config->color_management),
"gimp-context", context);
gimp_color_selection_set_config (GIMP_COLOR_SELECTION (dialog->selection),
context->gimp->config->color_management);
g_object_set_data (G_OBJECT (context->gimp->config->color_management),
"gimp-context", NULL);
}
gimp_color_selection_set_color (GIMP_COLOR_SELECTION (dialog->selection),
color);
gimp_color_selection_set_old_color (GIMP_COLOR_SELECTION (dialog->selection),
color);
return GTK_WIDGET (dialog);
}
void
gimp_color_dialog_set_color (GimpColorDialog *dialog,
const GimpRGB *color)
{
g_return_if_fail (GIMP_IS_COLOR_DIALOG (dialog));
g_return_if_fail (color != NULL);
g_signal_handlers_block_by_func (dialog->selection,
gimp_color_dialog_color_changed,
dialog);
gimp_color_selection_set_color (GIMP_COLOR_SELECTION (dialog->selection),
color);
gimp_color_selection_set_old_color (GIMP_COLOR_SELECTION (dialog->selection),
color);
g_signal_handlers_unblock_by_func (dialog->selection,
gimp_color_dialog_color_changed,
dialog);
}
void
gimp_color_dialog_get_color (GimpColorDialog *dialog,
GimpRGB *color)
{
g_return_if_fail (GIMP_IS_COLOR_DIALOG (dialog));
g_return_if_fail (color != NULL);
gimp_color_selection_get_color (GIMP_COLOR_SELECTION (dialog->selection),
color);
}
/* private functions */
static void
gimp_color_dialog_help_func (const gchar *help_id,
gpointer help_data)
{
GimpColorDialog *dialog = GIMP_COLOR_DIALOG (help_data);
GimpColorNotebook *notebook;
notebook =
GIMP_COLOR_NOTEBOOK (GIMP_COLOR_SELECTION (dialog->selection)->notebook);
help_id = GIMP_COLOR_SELECTOR_GET_CLASS (notebook->cur_page)->help_id;
gimp_standard_help_func (help_id, NULL);
}
static void
gimp_color_dialog_color_changed (GimpColorSelection *selection,
GimpColorDialog *dialog)
{
if (dialog->wants_updates)
{
GimpRGB color;
gimp_color_selection_get_color (selection, &color);
g_signal_emit (dialog, color_dialog_signals[UPDATE], 0,
&color, GIMP_COLOR_DIALOG_UPDATE);
}
}
/* color history callbacks */
static void
gimp_color_history_color_clicked (GtkWidget *widget,
GimpColorDialog *dialog)
{
GimpColorArea *color_area;
GimpRGB color;
color_area = GIMP_COLOR_AREA (gtk_bin_get_child (GTK_BIN (widget)));
gimp_color_area_get_color (color_area, &color);
gimp_color_selection_set_color (GIMP_COLOR_SELECTION (dialog->selection),
&color);
}
static void
gimp_color_history_color_changed (GtkWidget *widget,
gpointer data)
{
GimpRGB changed_color;
gint color_index;
GList *list;
gimp_color_area_get_color (GIMP_COLOR_AREA (widget), &changed_color);
color_index = GPOINTER_TO_INT (data);
color_history_set (color_index, &changed_color);
for (list = color_dialogs; list; list = g_list_next (list))
{
GimpColorDialog *dialog = list->data;
if (dialog->history[color_index] != widget)
{
g_signal_handlers_block_by_func (dialog->history[color_index],
gimp_color_history_color_changed,
data);
gimp_color_area_set_color
(GIMP_COLOR_AREA (dialog->history[color_index]), &changed_color);
g_signal_handlers_unblock_by_func (dialog->history[color_index],
gimp_color_history_color_changed,
data);
}
}
}
static void
gimp_color_history_add_clicked (GtkWidget *widget,
GimpColorDialog *dialog)
{
GimpRGB color;
gint shift_begin;
gint i;
gimp_color_selection_get_color (GIMP_COLOR_SELECTION (dialog->selection),
&color);
shift_begin = color_history_add (&color);
for (i = shift_begin; i >= 0; i--)
{
color_history_get (i, &color);
gimp_color_area_set_color (GIMP_COLOR_AREA (dialog->history[i]), &color);
}
}
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