gimp/app/gui/color-notebook.c

463 lines
14 KiB
C

/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* color_notebook 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 "libgimpwidgets/gimpwidgets.h"
#include "gui-types.h"
#include "core/gimpviewable.h"
#include "widgets/gimpdialogfactory.h"
#include "widgets/gimpviewabledialog.h"
#include "color-history.h"
#include "color-notebook.h"
#include "gimp-intl.h"
#define RESPONSE_RESET 1
#define COLOR_AREA_SIZE 20
struct _ColorNotebook
{
GtkWidget *shell;
GtkWidget *selection;
GtkWidget *history[COLOR_HISTORY_SIZE];
ColorNotebookCallback callback;
gpointer client_data;
gboolean wants_updates;
};
static void color_notebook_help_func (const gchar *help_id,
gpointer help_data);
static void color_notebook_response (GtkWidget *widget,
gint response_id,
ColorNotebook *cnp);
static void color_notebook_color_changed (GimpColorSelection *selection,
ColorNotebook *cnp);
static void color_history_color_clicked (GtkWidget *widget,
ColorNotebook *cnp);
static void color_history_color_changed (GtkWidget *widget,
gpointer data);
static void color_history_add_clicked (GtkWidget *widget,
ColorNotebook *cnp);
static GList *color_notebooks = NULL;
/* public functions */
ColorNotebook *
color_notebook_new (GimpViewable *viewable,
const gchar *title,
const gchar *stock_id,
const gchar *desc,
GtkWidget *parent,
GimpDialogFactory *dialog_factory,
const gchar *dialog_identifier,
const GimpRGB *color,
ColorNotebookCallback callback,
gpointer client_data,
gboolean wants_updates,
gboolean show_alpha)
{
ColorNotebook *cnp;
GtkWidget *table;
GtkWidget *button;
GtkWidget *arrow;
const gchar *role;
gint i;
g_return_val_if_fail (viewable == NULL || GIMP_IS_VIEWABLE (viewable), 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);
cnp = g_new0 (ColorNotebook, 1);
cnp->callback = callback;
cnp->client_data = client_data;
cnp->wants_updates = wants_updates;
role = dialog_identifier ? dialog_identifier : "gimp-color-selector";
if (desc)
{
cnp->shell = gimp_viewable_dialog_new (viewable, title, role,
stock_id, desc,
parent,
color_notebook_help_func, NULL,
NULL);
gtk_window_set_resizable (GTK_WINDOW (cnp->shell), FALSE);
}
else
{
cnp->shell = gimp_dialog_new (title, role,
parent, 0,
color_notebook_help_func, NULL,
NULL);
}
g_object_set_data (G_OBJECT (cnp->shell), "color-notebook", cnp);
gtk_dialog_add_buttons (GTK_DIALOG (cnp->shell),
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 (cnp->shell), GTK_RESPONSE_OK);
g_signal_connect (cnp->shell, "response",
G_CALLBACK (color_notebook_response),
cnp);
g_object_add_weak_pointer (G_OBJECT (cnp->shell), (gpointer *) &cnp->shell);
if (dialog_factory)
gimp_dialog_factory_add_foreign (dialog_factory, dialog_identifier,
cnp->shell);
cnp->selection = gimp_color_selection_new ();
gtk_container_set_border_width (GTK_CONTAINER (cnp->selection), 6);
gimp_color_selection_set_show_alpha (GIMP_COLOR_SELECTION (cnp->selection),
show_alpha);
gimp_color_selection_set_color (GIMP_COLOR_SELECTION (cnp->selection), color);
gimp_color_selection_set_old_color (GIMP_COLOR_SELECTION (cnp->selection),
color);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (cnp->shell)->vbox),
cnp->selection);
gtk_widget_show (cnp->selection);
g_signal_connect (cnp->selection, "color_changed",
G_CALLBACK (color_notebook_color_changed),
cnp);
/* 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 (cnp->selection)->right_vbox),
table, FALSE, FALSE, 0);
gtk_widget_show (table);
button = gtk_button_new ();
gtk_widget_set_size_request (button, COLOR_AREA_SIZE, COLOR_AREA_SIZE);
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 (color_history_add_clicked),
cnp);
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;
color_history_get (i, &history_color);
button = gtk_button_new ();
gtk_widget_set_size_request (button, COLOR_AREA_SIZE, COLOR_AREA_SIZE);
column = i % (COLOR_HISTORY_SIZE / 2);
row = i / (COLOR_HISTORY_SIZE / 2);
gtk_table_attach_defaults (GTK_TABLE (table), button,
column + 1, column + 2, row, row + 1);
cnp->history[i] = gimp_color_area_new (&history_color,
GIMP_COLOR_AREA_SMALL_CHECKS,
GDK_BUTTON2_MASK);
gtk_container_add (GTK_CONTAINER (button), cnp->history[i]);
gtk_widget_show (cnp->history[i]);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (color_history_color_clicked),
cnp);
g_signal_connect (cnp->history[i], "color_changed",
G_CALLBACK (color_history_color_changed),
GINT_TO_POINTER (i));
}
gtk_widget_show (cnp->shell);
color_notebooks = g_list_prepend (color_notebooks, cnp);
return cnp;
}
void
color_notebook_free (ColorNotebook *cnp)
{
g_return_if_fail (cnp != NULL);
color_notebooks = g_list_remove (color_notebooks, cnp);
/* may be already destroyed by dialog factory */
if (cnp->shell)
{
g_object_remove_weak_pointer (G_OBJECT (cnp->shell),
(gpointer *) &cnp->shell);
gtk_widget_destroy (cnp->shell);
}
g_free (cnp);
}
void
color_notebook_set_viewable (ColorNotebook *cnb,
GimpViewable *viewable)
{
g_return_if_fail (cnb != NULL);
if (GIMP_IS_VIEWABLE_DIALOG (cnb->shell))
gimp_viewable_dialog_set_viewable (GIMP_VIEWABLE_DIALOG (cnb->shell),
viewable);
}
void
color_notebook_set_title (ColorNotebook *cnb,
const gchar *title)
{
g_return_if_fail (cnb != NULL);
g_return_if_fail (title != NULL);
gtk_window_set_title (GTK_WINDOW (cnb->shell), title);
}
void
color_notebook_set_color (ColorNotebook *cnp,
const GimpRGB *color)
{
g_return_if_fail (cnp != NULL);
g_return_if_fail (color != NULL);
g_signal_handlers_block_by_func (cnp->selection,
color_notebook_color_changed,
cnp);
gimp_color_selection_set_color (GIMP_COLOR_SELECTION (cnp->selection), color);
gimp_color_selection_set_old_color (GIMP_COLOR_SELECTION (cnp->selection),
color);
g_signal_handlers_unblock_by_func (cnp->selection,
color_notebook_color_changed,
cnp);
}
void
color_notebook_get_color (ColorNotebook *cnp,
GimpRGB *color)
{
g_return_if_fail (cnp != NULL);
g_return_if_fail (color != NULL);
gimp_color_selection_get_color (GIMP_COLOR_SELECTION (cnp->selection), color);
}
void
color_notebook_show (ColorNotebook *cnp)
{
g_return_if_fail (cnp != NULL);
gtk_window_present (GTK_WINDOW (cnp->shell));
}
void
color_notebook_hide (ColorNotebook *cnp)
{
g_return_if_fail (cnp != NULL);
gtk_widget_hide (cnp->shell);
}
/* private functions */
static void
color_notebook_help_func (const gchar *help_id,
gpointer help_data)
{
ColorNotebook *cnp;
GimpColorNotebook *notebook;
cnp = g_object_get_data (G_OBJECT (help_data), "color-notebook");
notebook =
GIMP_COLOR_NOTEBOOK (GIMP_COLOR_SELECTION (cnp->selection)->notebook);
help_id = GIMP_COLOR_SELECTOR_GET_CLASS (notebook->cur_page)->help_id;
gimp_standard_help_func (help_id, NULL);
}
static void
color_notebook_response (GtkWidget *widget,
gint response_id,
ColorNotebook *cnp)
{
GimpRGB color;
switch (response_id)
{
case RESPONSE_RESET:
gimp_color_selection_reset (GIMP_COLOR_SELECTION (cnp->selection));
break;
case GTK_RESPONSE_OK:
color_history_add_clicked (NULL, cnp);
gimp_color_selection_get_color (GIMP_COLOR_SELECTION (cnp->selection),
&color);
if (cnp->callback)
cnp->callback (cnp, &color,
COLOR_NOTEBOOK_OK,
cnp->client_data);
break;
default:
gimp_color_selection_get_old_color (GIMP_COLOR_SELECTION (cnp->selection),
&color);
if (cnp->callback)
cnp->callback (cnp, &color,
COLOR_NOTEBOOK_CANCEL,
cnp->client_data);
break;
}
}
static void
color_notebook_color_changed (GimpColorSelection *selection,
ColorNotebook *cnp)
{
GimpRGB color;
gimp_color_selection_get_color (selection, &color);
if (cnp->wants_updates && cnp->callback)
cnp->callback (cnp,
&color,
COLOR_NOTEBOOK_UPDATE,
cnp->client_data);
}
/* color history callbacks */
static void
color_history_color_clicked (GtkWidget *widget,
ColorNotebook *cnp)
{
GimpColorArea *color_area;
GimpRGB color;
color_area = GIMP_COLOR_AREA (GTK_BIN (widget)->child);
gimp_color_area_get_color (color_area, &color);
gimp_color_selection_set_color (GIMP_COLOR_SELECTION (cnp->selection),
&color);
}
static void
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_notebooks; list; list = g_list_next (list))
{
ColorNotebook *notebook = list->data;
if (notebook->history[color_index] != widget)
{
g_signal_handlers_block_by_func (notebook->history[color_index],
color_history_color_changed,
data);
gimp_color_area_set_color
(GIMP_COLOR_AREA (notebook->history[color_index]), &changed_color);
g_signal_handlers_unblock_by_func (notebook->history[color_index],
color_history_color_changed,
data);
}
}
}
static void
color_history_add_clicked (GtkWidget *widget,
ColorNotebook *cnp)
{
GimpRGB color;
gint shift_begin;
gint i;
gimp_color_selection_get_color (GIMP_COLOR_SELECTION (cnp->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 (cnp->history[i]), &color);
}
}