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gimp/app/actions/channels-commands.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 "core/core-types.h"
#include "core/gimp.h"
#include "core/gimpchannel.h"
#include "core/gimpimage.h"
#include "core/gimpimage-mask.h"
#include "core/gimplist.h"
#include "widgets/gimpcolorpanel.h"
#include "widgets/gimpwidgets-utils.h"
#include "channels-commands.h"
#include "gdisplay.h"
#include "menus.h"
#include "app_procs.h"
#include "libgimp/gimpintl.h"
static void channels_menu_set_sensitivity (GimpImage *gimage);
void
channels_new_channel_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
gimage = (GimpImage *) gimp_widget_get_callback_context (widget);
if (! gimage)
return;
channels_new_channel_query (gimage);
}
void
channels_raise_channel_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
gimage = (GimpImage *) gimp_widget_get_callback_context (widget);
if (! gimage)
return;
if (gimp_image_get_active_channel (gimage))
{
gimp_image_raise_channel (gimage, gimp_image_get_active_channel (gimage));
gdisplays_flush ();
}
}
void
channels_lower_channel_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
gimage = (GimpImage *) gimp_widget_get_callback_context (widget);
if (! gimage)
return;
if (gimp_image_get_active_channel (gimage))
{
gimp_image_lower_channel (gimage, gimp_image_get_active_channel (gimage));
gdisplays_flush ();
}
}
void
channels_duplicate_channel_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
GimpChannel *new_channel;
gimage = (GimpImage *) gimp_widget_get_callback_context (widget);
if (! gimage)
return;
if ((active_channel = gimp_image_get_active_channel (gimage)))
{
new_channel = gimp_channel_copy (active_channel, TRUE);
gimp_image_add_channel (gimage, new_channel, -1);
gdisplays_flush ();
}
}
void
channels_delete_channel_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
gimage = (GimpImage *) gimp_widget_get_callback_context (widget);
if (! gimage)
return;
if ((active_channel = gimp_image_get_active_channel (gimage)))
{
gimp_image_remove_channel (gimage, active_channel);
gdisplays_flush ();
}
}
void
channels_channel_to_sel_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
gimage = (GimpImage *) gimp_widget_get_callback_context (widget);
if (! gimage)
return;
if ((active_channel = gimp_image_get_active_channel (gimage)))
{
gimage_mask_load (gimage, active_channel);
gdisplays_flush ();
}
}
void
channels_add_channel_to_sel_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
GimpChannel *new_channel;
gimage = (GimpImage *) gimp_widget_get_callback_context (widget);
if (! gimage)
return;
if ((active_channel = gimp_image_get_active_channel (gimage)))
{
new_channel = gimp_channel_copy (gimp_image_get_mask (gimage), TRUE);
gimp_channel_combine_mask (new_channel,
active_channel,
CHANNEL_OP_ADD,
0, 0); /* off x/y */
gimage_mask_load (gimage, new_channel);
gtk_object_unref (GTK_OBJECT (new_channel));
gdisplays_flush ();
}
}
void
channels_sub_channel_from_sel_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
GimpChannel *new_channel;
gimage = (GimpImage *) gimp_widget_get_callback_context (widget);
if (! gimage)
return;
if ((active_channel = gimp_image_get_active_channel (gimage)))
{
new_channel = gimp_channel_copy (gimp_image_get_mask (gimage), TRUE);
gimp_channel_combine_mask (new_channel,
active_channel,
CHANNEL_OP_SUB,
0, 0); /* off x/y */
gimage_mask_load (gimage, new_channel);
gtk_object_unref (GTK_OBJECT (new_channel));
gdisplays_flush ();
}
}
void
channels_intersect_channel_with_sel_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
GimpChannel *new_channel;
gimage = (GimpImage *) gimp_widget_get_callback_context (widget);
if (! gimage)
return;
if ((active_channel = gimp_image_get_active_channel (gimage)))
{
new_channel = gimp_channel_copy (gimp_image_get_mask (gimage), TRUE);
gimp_channel_combine_mask (new_channel,
active_channel,
CHANNEL_OP_INTERSECT,
0, 0); /* off x/y */
gimage_mask_load (gimage, new_channel);
gtk_object_unref (GTK_OBJECT (new_channel));
gdisplays_flush ();
}
}
void
channels_edit_channel_attributes_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
gimage = (GimpImage *) gimp_widget_get_callback_context (widget);
if (! gimage)
return;
if ((active_channel = gimp_image_get_active_channel (gimage)))
{
channels_edit_channel_query (active_channel);
}
}
static void
channels_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
channels_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);
}
/**********************************/
/* The new channel query dialog */
/**********************************/
typedef struct _NewChannelOptions NewChannelOptions;
struct _NewChannelOptions
{
GtkWidget *query_box;
GtkWidget *name_entry;
GtkWidget *color_panel;
GimpImage *gimage;
};
static gchar *channel_name = NULL;
static GimpRGB channel_color = { 0.0, 0.0, 0.0, 0.5 };
static void
new_channel_query_ok_callback (GtkWidget *widget,
gpointer data)
{
NewChannelOptions *options;
GimpChannel *new_channel;
GimpImage *gimage;
options = (NewChannelOptions *) data;
if (channel_name)
g_free (channel_name);
channel_name = g_strdup (gtk_entry_get_text (GTK_ENTRY (options->name_entry)));
if ((gimage = options->gimage))
{
gimp_color_button_get_color (GIMP_COLOR_BUTTON (options->color_panel),
&channel_color);
new_channel = gimp_channel_new (gimage, gimage->width, gimage->height,
channel_name,
&channel_color);
gimp_drawable_fill_by_type (GIMP_DRAWABLE (new_channel),
gimp_get_user_context (the_gimp),
TRANSPARENT_FILL);
gimp_image_add_channel (gimage, new_channel, -1);
gdisplays_flush ();
}
gtk_widget_destroy (options->query_box);
}
void
channels_new_channel_query (GimpImage *gimage)
{
NewChannelOptions *options;
GtkWidget *hbox;
GtkWidget *vbox;
GtkWidget *table;
GtkWidget *label;
GtkWidget *opacity_scale;
GtkObject *opacity_scale_data;
/* the new options structure */
options = g_new (NewChannelOptions, 1);
options->gimage = gimage;
options->color_panel = gimp_color_panel_new (_("New Channel Color"),
&channel_color,
GIMP_COLOR_AREA_LARGE_CHECKS,
48, 64);
/* The dialog */
options->query_box =
gimp_dialog_new (_("New Channel Options"), "new_channel_options",
gimp_standard_help_func,
"dialogs/channels/new_channel.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
_("OK"), new_channel_query_ok_callback,
options, NULL, NULL, TRUE, FALSE,
_("Cancel"), gtk_widget_destroy,
NULL, 1, NULL, FALSE, TRUE,
NULL);
gtk_signal_connect_object (GTK_OBJECT (options->query_box), "destroy",
GTK_SIGNAL_FUNC (g_free),
(GtkObject *) options);
/* The main hbox */
hbox = gtk_hbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 4);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (options->query_box)->vbox),
hbox);
/* The vbox */
vbox = gtk_vbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (hbox), vbox, TRUE, TRUE, 0);
/* The table */
table = gtk_table_new (2, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
/* The name entry hbox, label and entry */
label = gtk_label_new (_("Channel name:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
options->name_entry = gtk_entry_new ();
gtk_widget_set_usize (options->name_entry, 150, 0);
gtk_table_attach_defaults (GTK_TABLE (table), options->name_entry,
1, 2, 0, 1);
gtk_entry_set_text (GTK_ENTRY (options->name_entry),
(channel_name ? channel_name : _("New Channel")));
gtk_widget_show (options->name_entry);
/* The opacity scale */
label = gtk_label_new (_("Fill Opacity:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
opacity_scale_data =
gtk_adjustment_new (channel_color.a * 100.0, 0.0, 100.0, 1.0, 1.0, 0.0);
opacity_scale = gtk_hscale_new (GTK_ADJUSTMENT (opacity_scale_data));
gtk_table_attach_defaults (GTK_TABLE (table), opacity_scale, 1, 2, 1, 2);
gtk_scale_set_value_pos (GTK_SCALE (opacity_scale), GTK_POS_TOP);
gtk_signal_connect (GTK_OBJECT (opacity_scale_data), "value_changed",
GTK_SIGNAL_FUNC (channels_opacity_update),
options->color_panel);
gtk_widget_show (opacity_scale);
/* The color panel */
gtk_signal_connect (GTK_OBJECT (options->color_panel), "color_changed",
channels_color_changed,
opacity_scale_data);
gtk_box_pack_start (GTK_BOX (hbox), options->color_panel,
TRUE, TRUE, 0);
gtk_widget_show (options->color_panel);
gtk_widget_show (table);
gtk_widget_show (vbox);
gtk_widget_show (hbox);
gtk_widget_show (options->query_box);
}
/****************************************/
/* The edit channel attributes dialog */
/****************************************/
typedef struct _EditChannelOptions EditChannelOptions;
struct _EditChannelOptions
{
GtkWidget *query_box;
GtkWidget *name_entry;
GtkWidget *color_panel;
GimpChannel *channel;
GimpImage *gimage;
};
static void
edit_channel_query_ok_callback (GtkWidget *widget,
gpointer data)
{
EditChannelOptions *options;
GimpChannel *channel;
GimpRGB color;
options = (EditChannelOptions *) data;
channel = options->channel;
if (options->gimage)
{
/* Set the new channel name */
gimp_object_set_name (GIMP_OBJECT (channel),
gtk_entry_get_text (GTK_ENTRY (options->name_entry)));
gimp_color_button_get_color (GIMP_COLOR_BUTTON (options->color_panel),
&color);
if (gimp_rgba_distance (&color, &channel->color) > 0.0001)
{
gimp_channel_set_color (channel, &color);
gdisplays_flush ();
}
}
gtk_widget_destroy (options->query_box);
}
void
channels_edit_channel_query (GimpChannel *channel)
{
EditChannelOptions *options;
GtkWidget *hbox;
GtkWidget *vbox;
GtkWidget *table;
GtkWidget *label;
GtkWidget *opacity_scale;
GtkObject *opacity_scale_data;
options = g_new0 (EditChannelOptions, 1);
options->channel = channel;
options->gimage = gimp_drawable_gimage (GIMP_DRAWABLE (channel));
channel_color = channel->color;
options->color_panel = gimp_color_panel_new (_("Edit Channel Color"),
&channel_color,
GIMP_COLOR_AREA_LARGE_CHECKS,
48, 64);
/* The dialog */
options->query_box =
gimp_dialog_new (_("Edit Channel Attributes"), "edit_channel_attributes",
gimp_standard_help_func,
"dialogs/channels/edit_channel_attributes.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
_("OK"), edit_channel_query_ok_callback,
options, NULL, NULL, TRUE, FALSE,
_("Cancel"), gtk_widget_destroy,
NULL, 1, NULL, FALSE, TRUE,
NULL);
gtk_signal_connect_object (GTK_OBJECT (options->query_box), "destroy",
GTK_SIGNAL_FUNC (g_free),
(GtkObject *) options);
gtk_signal_connect_object_while_alive (GTK_OBJECT (channel), "removed",
GTK_SIGNAL_FUNC (gtk_widget_destroy),
GTK_OBJECT (options->query_box));
/* The main hbox */
hbox = gtk_hbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 4);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (options->query_box)->vbox),
hbox);
/* The vbox */
vbox = gtk_vbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (hbox), vbox, TRUE, TRUE, 0);
/* The table */
table = gtk_table_new (2, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
/* The name entry */
label = gtk_label_new (_("Channel name:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (label);
options->name_entry = gtk_entry_new ();
gtk_widget_set_usize (options->name_entry, 150, 0);
gtk_table_attach_defaults (GTK_TABLE (table), options->name_entry,
1, 2, 0, 1);
gtk_entry_set_text (GTK_ENTRY (options->name_entry),
gimp_object_get_name (GIMP_OBJECT (channel)));
gtk_widget_show (options->name_entry);
/* The opacity scale */
label = gtk_label_new (_("Fill Opacity:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (label);
opacity_scale_data =
gtk_adjustment_new (channel_color.a * 100.0, 0.0, 100.0, 1.0, 1.0, 0.0);
opacity_scale = gtk_hscale_new (GTK_ADJUSTMENT (opacity_scale_data));
gtk_table_attach_defaults (GTK_TABLE (table), opacity_scale, 1, 2, 1, 2);
gtk_scale_set_value_pos (GTK_SCALE (opacity_scale), GTK_POS_TOP);
gtk_signal_connect (GTK_OBJECT (opacity_scale_data), "value_changed",
GTK_SIGNAL_FUNC (channels_opacity_update),
options->color_panel);
gtk_widget_show (opacity_scale);
/* The color panel */
gtk_signal_connect (GTK_OBJECT (options->color_panel), "color_changed",
channels_color_changed,
opacity_scale_data);
gtk_box_pack_start (GTK_BOX (hbox), options->color_panel,
TRUE, TRUE, 0);
gtk_widget_show (options->color_panel);
gtk_widget_show (table);
gtk_widget_show (vbox);
gtk_widget_show (hbox);
gtk_widget_show (options->query_box);
}
void
channels_show_context_menu (GimpImage *gimage)
{
GtkItemFactory *item_factory;
gint x, y;
channels_menu_set_sensitivity (gimage);
item_factory = menus_get_channels_factory ();
gimp_menu_position (GTK_MENU (item_factory->widget), &x, &y);
gtk_item_factory_popup_with_data (item_factory,
gimage, NULL,
x, y,
3, 0);
}
static void
channels_menu_set_sensitivity (GimpImage *gimage)
{
GimpChannel *channel;
gboolean fs;
GList *list;
GList *next = NULL;
GList *prev = NULL;
g_return_if_fail (gimage != NULL);
g_return_if_fail (GIMP_IS_IMAGE (gimage));
channel = gimp_image_get_active_channel (gimage);
fs = (gimp_image_floating_sel (gimage) != NULL);
for (list = GIMP_LIST (gimage->channels)->list;
list;
list = g_list_next (list))
{
if (channel == (GimpChannel *) list->data)
{
prev = g_list_previous (list);
next = g_list_next (list);
break;
}
}
#define SET_SENSITIVE(menu,condition) \
menus_set_sensitive ("<Channels>/" menu, (condition) != 0)
SET_SENSITIVE ("New Channel...", !fs);
SET_SENSITIVE ("Raise Channel", !fs && channel && prev);
SET_SENSITIVE ("Lower Channel", !fs && channel && next);
SET_SENSITIVE ("Duplicate Channel", !fs && channel);
SET_SENSITIVE ("Channel to Selection", !fs && channel);
SET_SENSITIVE ("Add to Selection", !fs && channel);
SET_SENSITIVE ("Subtract from Selection", !fs && channel);
SET_SENSITIVE ("Intersect with Selection", !fs && channel);
SET_SENSITIVE ("Delete Channel", !fs && channel);
SET_SENSITIVE ("Edit Channel Attributes...", !fs && channel);
#undef SET_OPS_SENSITIVE
}
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