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gimp/app/dialogs/channel-options-dialog.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 "dialogs-types.h"
#include "core/gimpchannel.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "widgets/gimpcolorpanel.h"
#include "widgets/gimpviewabledialog.h"
#include "channel-options-dialog.h"
#include "gimp-intl.h"
/* local function prototypes */
static void channel_options_opacity_update (GtkAdjustment *adjustment,
gpointer data);
static void channel_options_color_changed (GimpColorButton *button,
gpointer data);
/* public functions */
ChannelOptionsDialog *
channel_options_dialog_new (GimpImage *image,
GimpChannel *channel,
GimpContext *context,
GtkWidget *parent,
const GimpRGB *channel_color,
const gchar *channel_name,
const gchar *title,
const gchar *role,
const gchar *stock_id,
const gchar *desc,
const gchar *help_id,
const gchar *color_label,
const gchar *opacity_label,
gboolean show_from_sel)
{
ChannelOptionsDialog *options;
GimpViewable *viewable;
GtkWidget *hbox;
GtkWidget *vbox;
GtkWidget *table;
GtkObject *opacity_adj;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (channel == NULL || GIMP_IS_CHANNEL (channel), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (parent), NULL);
g_return_val_if_fail (channel_color != NULL, NULL);
g_return_val_if_fail (title != NULL, NULL);
g_return_val_if_fail (role != NULL, NULL);
g_return_val_if_fail (stock_id != NULL, NULL);
g_return_val_if_fail (desc != NULL, NULL);
g_return_val_if_fail (help_id != NULL, NULL);
g_return_val_if_fail (color_label != NULL, NULL);
g_return_val_if_fail (opacity_label != NULL, NULL);
options = g_new0 (ChannelOptionsDialog, 1);
options->image = image;
options->context = context;
options->channel = channel;
options->color_panel = gimp_color_panel_new (color_label,
channel_color,
GIMP_COLOR_AREA_LARGE_CHECKS,
48, 64);
gimp_color_panel_set_context (GIMP_COLOR_PANEL (options->color_panel),
context);
if (channel)
viewable = GIMP_VIEWABLE (channel);
else
viewable = GIMP_VIEWABLE (image);
options->dialog =
gimp_viewable_dialog_new (viewable, context,
title, role, stock_id, desc,
parent,
gimp_standard_help_func, help_id,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
g_object_weak_ref (G_OBJECT (options->dialog),
(GWeakNotify) g_free,
options);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (options->dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
hbox = gtk_hbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 12);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (options->dialog)->vbox), hbox);
gtk_widget_show (hbox);
vbox = gtk_vbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (hbox), vbox, TRUE, TRUE, 0);
gtk_widget_show (vbox);
table = gtk_table_new (channel_name ? 2 : 1, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
if (channel_name)
{
options->name_entry = gtk_entry_new ();
gtk_entry_set_activates_default (GTK_ENTRY (options->name_entry), TRUE);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Channel _name:"), 0.0, 0.5,
options->name_entry, 2, FALSE);
gtk_entry_set_text (GTK_ENTRY (options->name_entry), channel_name);
}
opacity_adj = gimp_scale_entry_new (GTK_TABLE (table),
0, channel_name ? 1 : 0,
opacity_label, 100, -1,
channel_color->a * 100.0,
0.0, 100.0, 1.0, 10.0, 1,
TRUE, 0.0, 0.0,
NULL, NULL);
g_signal_connect (opacity_adj, "value-changed",
G_CALLBACK (channel_options_opacity_update),
options->color_panel);
gtk_box_pack_start (GTK_BOX (hbox), options->color_panel,
TRUE, TRUE, 0);
gtk_widget_show (options->color_panel);
g_signal_connect (options->color_panel, "color-changed",
G_CALLBACK (channel_options_color_changed),
opacity_adj);
if (show_from_sel)
{
options->save_sel_checkbutton =
gtk_check_button_new_with_mnemonic (_("Initialize from _selection"));
gtk_box_pack_start (GTK_BOX (vbox), options->save_sel_checkbutton,
FALSE, FALSE, 0);
gtk_widget_show (options->save_sel_checkbutton);
}
return options;
}
/* private functions */
static void
channel_options_opacity_update (GtkAdjustment *adjustment,
gpointer data)
{
GimpRGB color;
gimp_color_button_get_color (GIMP_COLOR_BUTTON (data), &color);
gimp_rgb_set_alpha (&color, adjustment->value / 100.0);
gimp_color_button_set_color (GIMP_COLOR_BUTTON (data), &color);
}
static void
channel_options_color_changed (GimpColorButton *button,
gpointer data)
{
GtkAdjustment *adj = GTK_ADJUSTMENT (data);
GimpRGB color;
gimp_color_button_get_color (button, &color);
gtk_adjustment_set_value (adj, color.a * 100.0);
}
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