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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 "gui-types.h"
#include "core/gimp.h"
#include "core/gimpchannel.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "core/gimpimage-mask.h"
#include "core/gimpimage-mask-select.h"
#include "core/gimplist.h"
#include "display/gimpdisplay-foreach.h"
#include "widgets/gimpcolorpanel.h"
#include "widgets/gimpitemfactory.h"
#include "widgets/gimpwidgets-utils.h"
#include "channels-commands.h"
#include "undo.h"
#include "libgimp/gimpintl.h"
/* local function prototypes */
static void channels_opacity_update (GtkAdjustment *adjustment,
gpointer data);
static void channels_color_changed (GimpColorButton *button,
gpointer data);
#define return_if_no_image(gimage) \
gimage = (GimpImage *) gimp_widget_get_callback_context (widget); \
if (! GIMP_IS_IMAGE (gimage)) \
gimage = gimp_context_get_image (gimp_get_user_context (GIMP (data))); \
if (! gimage) \
return
#define return_if_no_channel(gimage,channel) \
return_if_no_image (gimage); \
channel = gimp_image_get_active_channel (gimage); \
if (! channel) \
return
/* public functions */
void
channels_new_channel_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
return_if_no_image (gimage);
channels_new_channel_query (gimage, NULL);
}
void
channels_raise_channel_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
return_if_no_channel (gimage, active_channel);
gimp_image_raise_channel (gimage, active_channel);
gdisplays_flush ();
}
void
channels_lower_channel_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
return_if_no_channel (gimage, active_channel);
gimp_image_lower_channel (gimage, active_channel);
gdisplays_flush ();
}
void
channels_duplicate_channel_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
GimpChannel *new_channel;
return_if_no_channel (gimage, active_channel);
new_channel = gimp_channel_copy (active_channel,
G_TYPE_FROM_INSTANCE (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;
return_if_no_channel (gimage, active_channel);
gimp_image_remove_channel (gimage, active_channel);
gdisplays_flush ();
}
static void
channels_channel_to_sel (GtkWidget *widget,
gpointer data,
GimpChannelOps op)
{
GimpImage *gimage;
GimpChannel *active_channel;
return_if_no_channel (gimage, active_channel);
gimp_image_mask_select_channel (gimage,
active_channel,
0, 0,
op,
FALSE, 0, 0);
gdisplays_flush ();
}
void
channels_channel_to_sel_cmd_callback (GtkWidget *widget,
gpointer data)
{
channels_channel_to_sel (widget, data, GIMP_CHANNEL_OP_REPLACE);
}
void
channels_add_channel_to_sel_cmd_callback (GtkWidget *widget,
gpointer data)
{
channels_channel_to_sel (widget, data, GIMP_CHANNEL_OP_ADD);
}
void
channels_sub_channel_from_sel_cmd_callback (GtkWidget *widget,
gpointer data)
{
channels_channel_to_sel (widget, data, GIMP_CHANNEL_OP_SUBTRACT);
}
void
channels_intersect_channel_with_sel_cmd_callback (GtkWidget *widget,
gpointer data)
{
channels_channel_to_sel (widget, data, GIMP_CHANNEL_OP_INTERSECT);
}
void
channels_edit_channel_attributes_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
return_if_no_channel (gimage, active_channel);
channels_edit_channel_query (active_channel);
}
/**********************************/
/* 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 (gimage->gimp),
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,
GimpChannel *template)
{
NewChannelOptions *options;
GtkWidget *hbox;
GtkWidget *vbox;
GtkWidget *table;
GtkObject *opacity_scale_data;
g_return_if_fail (GIMP_IS_IMAGE (gimage));
g_return_if_fail (! template || GIMP_IS_CHANNEL (template));
if (template)
{
GimpChannel *new_channel;
gint width, height;
gint off_x, off_y;
width = gimp_drawable_width (GIMP_DRAWABLE (template));
height = gimp_drawable_height (GIMP_DRAWABLE (template));
gimp_drawable_offsets (GIMP_DRAWABLE (template), &off_x, &off_y);
undo_push_group_start (gimage, EDIT_PASTE_UNDO_GROUP);
new_channel = gimp_channel_new (gimage,
width, height,
_("Empty Channel Copy"),
&template->color);
gimp_drawable_fill_by_type (GIMP_DRAWABLE (new_channel),
gimp_get_user_context (gimage->gimp),
GIMP_TRANSPARENT_FILL);
gimp_channel_translate (new_channel, off_x, off_y);
gimp_image_add_channel (gimage, new_channel, -1);
undo_push_group_end (gimage);
gdisplays_flush ();
return;
}
/* 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,
GTK_STOCK_CANCEL, gtk_widget_destroy,
NULL, 1, NULL, FALSE, TRUE,
GTK_STOCK_OK, new_channel_query_ok_callback,
options, NULL, NULL, TRUE, FALSE,
NULL);
g_object_weak_ref (G_OBJECT (options->query_box),
(GWeakNotify) g_free,
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), 2);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
/* The name entry */
options->name_entry = gtk_entry_new ();
gtk_widget_set_size_request (options->name_entry, 150, -1);
gtk_entry_set_text (GTK_ENTRY (options->name_entry),
(channel_name ? channel_name : _("New Channel")));
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Channel Name:"), 1.0, 0.5,
options->name_entry, 2, FALSE);
/* The opacity scale */
opacity_scale_data = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
_("Fill Opacity:"), -1, 50,
channel_color.a * 100.0,
0.0, 100.0, 1.0, 10.0, 1,
TRUE, 0.0, 0.0,
NULL, NULL);
g_signal_connect (G_OBJECT (opacity_scale_data), "value_changed",
G_CALLBACK (channels_opacity_update),
options->color_panel);
/* The color panel */
gtk_box_pack_start (GTK_BOX (hbox), options->color_panel,
TRUE, TRUE, 0);
gtk_widget_show (options->color_panel);
g_signal_connect (G_OBJECT (options->color_panel), "color_changed",
G_CALLBACK (channels_color_changed),
opacity_scale_data);
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;
options = (EditChannelOptions *) data;
channel = options->channel;
if (options->gimage)
{
const gchar *new_name;
GimpRGB color;
new_name = gtk_entry_get_text (GTK_ENTRY (options->name_entry));
if (strcmp (new_name, gimp_object_get_name (GIMP_OBJECT (channel))))
{
undo_push_item_rename (options->gimage, GIMP_ITEM (channel));
gimp_object_set_name (GIMP_OBJECT (channel), new_name);
}
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;
GtkObject *opacity_scale_data;
options = g_new0 (EditChannelOptions, 1);
options->channel = channel;
options->gimage = gimp_item_get_image (GIMP_ITEM (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,
GTK_STOCK_CANCEL, gtk_widget_destroy,
NULL, 1, NULL, FALSE, TRUE,
GTK_STOCK_OK, edit_channel_query_ok_callback,
options, NULL, NULL, TRUE, FALSE,
NULL);
g_object_weak_ref (G_OBJECT (options->query_box),
(GWeakNotify) g_free,
options);
g_signal_connect_object (G_OBJECT (channel), "removed",
G_CALLBACK (gtk_widget_destroy),
G_OBJECT (options->query_box),
G_CONNECT_SWAPPED);
/* 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), 2);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
/* The name entry */
options->name_entry = gtk_entry_new ();
gtk_widget_set_size_request (options->name_entry, 150, -1);
gtk_entry_set_text (GTK_ENTRY (options->name_entry),
gimp_object_get_name (GIMP_OBJECT (channel)));
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Channel Name:"), 1.0, 0.5,
options->name_entry, 2, FALSE);
/* The opacity scale */
opacity_scale_data = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
_("Fill Opacity:"), -1, 50,
channel_color.a * 100.0,
0.0, 100.0, 1.0, 10.0, 1,
TRUE, 0.0, 0.0,
NULL, NULL);
g_signal_connect (G_OBJECT (opacity_scale_data), "value_changed",
G_CALLBACK (channels_opacity_update),
options->color_panel);
/* The color panel */
gtk_box_pack_start (GTK_BOX (hbox), options->color_panel,
TRUE, TRUE, 0);
gtk_widget_show (options->color_panel);
g_signal_connect (G_OBJECT (options->color_panel), "color_changed",
G_CALLBACK (channels_color_changed),
opacity_scale_data);
gtk_widget_show (table);
gtk_widget_show (vbox);
gtk_widget_show (hbox);
gtk_widget_show (options->query_box);
}
void
channels_menu_update (GtkItemFactory *factory,
gpointer data)
{
GimpImage *gimage;
GimpChannel *channel;
gboolean fs;
GList *list;
GList *next = NULL;
GList *prev = NULL;
gimage = GIMP_IMAGE (data);
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) \
gimp_item_factory_set_sensitive (factory, 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_SENSITIVE
}
/* private functions */
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);
}
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