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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 <string.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/gimpchannel-select.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "core/gimpimage-undo.h"
#include "widgets/gimpcolorpanel.h"
#include "widgets/gimpcomponenteditor.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpitemtreeview.h"
#include "widgets/gimpviewabledialog.h"
#include "display/gimpdisplay.h"
#include "channels-commands.h"
#include "gimp-intl.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,data) \
if (GIMP_IS_DISPLAY (data)) \
gimage = ((GimpDisplay *) data)->gimage; \
else if (GIMP_IS_GIMP (data)) \
gimage = gimp_context_get_image (gimp_get_user_context (GIMP (data))); \
else if (GIMP_IS_COMPONENT_EDITOR (data)) \
gimage = ((GimpImageEditor *) data)->gimage; \
else if (GIMP_IS_ITEM_TREE_VIEW (data)) \
gimage = ((GimpItemTreeView *) data)->gimage; \
else \
gimage = NULL; \
\
if (! gimage) \
return
#define return_if_no_channel(gimage,channel,data) \
return_if_no_image (gimage,data); \
channel = gimp_image_get_active_channel (gimage); \
if (! channel) \
return
/* public functions */
void
channels_new_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
return_if_no_image (gimage, data);
channels_new_channel_query (gimage, NULL, TRUE, widget);
}
void
channels_raise_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
return_if_no_channel (gimage, active_channel, data);
gimp_image_raise_channel (gimage, active_channel);
gimp_image_flush (gimage);
}
void
channels_lower_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
return_if_no_channel (gimage, active_channel, data);
gimp_image_lower_channel (gimage, active_channel);
gimp_image_flush (gimage);
}
void
channels_duplicate_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *new_channel;
if (GIMP_IS_COMPONENT_EDITOR (data))
{
GimpRGB color;
GimpChannelType component;
GEnumClass *enum_class;
GEnumValue *enum_value;
gchar *name;
return_if_no_image (gimage, data);
gimp_rgba_set (&color, 0, 0, 0, 0.5);
component = GIMP_COMPONENT_EDITOR (data)->clicked_component;
enum_class = g_type_class_ref (GIMP_TYPE_CHANNEL_TYPE);
enum_value = g_enum_get_value (enum_class, component);
g_type_class_unref (enum_class);
name = g_strdup_printf (_("%s Channel Copy"),
gettext (enum_value->value_name));
new_channel = gimp_channel_new_from_component (gimage, component,
name, &color);
/* copied components are invisible by default so subsequent copies
* of components don't affect each other
*/
gimp_item_set_visible (GIMP_ITEM (new_channel), FALSE, FALSE);
g_free (name);
}
else
{
GimpChannel *active_channel;
return_if_no_channel (gimage, active_channel, data);
new_channel =
GIMP_CHANNEL (gimp_item_duplicate (GIMP_ITEM (active_channel),
G_TYPE_FROM_INSTANCE (active_channel),
TRUE));
}
gimp_image_add_channel (gimage, new_channel, -1);
gimp_image_flush (gimage);
}
void
channels_delete_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
return_if_no_channel (gimage, active_channel, data);
gimp_image_remove_channel (gimage, active_channel);
gimp_image_flush (gimage);
}
void
channels_to_selection_cmd_callback (GtkWidget *widget,
gpointer data,
guint action)
{
GimpChannelOps op;
GimpImage *gimage;
op = (GimpChannelOps) action;
if (GIMP_IS_COMPONENT_EDITOR (data))
{
GimpChannelType component;
return_if_no_image (gimage, data);
component = GIMP_COMPONENT_EDITOR (data)->clicked_component;
gimp_channel_select_component (gimp_image_get_mask (gimage), component,
op, FALSE, 0.0, 0.0);
}
else
{
GimpChannel *channel;
return_if_no_channel (gimage, channel, data);
gimp_channel_select_channel (gimp_image_get_mask (gimage),
_("Channel to Selection"),
channel, 0, 0,
op, FALSE, 0.0, 0.0);
}
gimp_image_flush (gimage);
}
void
channels_edit_attributes_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpChannel *active_channel;
return_if_no_channel (gimage, active_channel, data);
channels_edit_channel_query (active_channel, widget);
}
/**********************************/
/* 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_response (GtkWidget *widget,
gint response_id,
NewChannelOptions *options)
{
if (response_id == GTK_RESPONSE_OK)
{
GimpChannel *new_channel;
GimpImage *gimage;
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);
gimp_image_flush (gimage);
}
}
gtk_widget_destroy (options->query_box);
}
void
channels_new_channel_query (GimpImage *gimage,
GimpChannel *template,
gboolean interactive,
GtkWidget *parent)
{
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 || ! interactive)
{
GimpChannel *new_channel;
gint width, height;
GimpRGB color;
if (template)
{
width = gimp_item_width (GIMP_ITEM (template));
height = gimp_item_height (GIMP_ITEM (template));
color = template->color;
}
else
{
width = gimp_image_get_width (gimage);
height = gimp_image_get_height (gimage);
gimp_rgba_set (&color, 0.0, 0.0, 0.0, 0.5);
}
gimp_image_undo_group_start (gimage, GIMP_UNDO_GROUP_EDIT_PASTE,
_("New Channel"));
new_channel = gimp_channel_new (gimage,
width, height,
_("Empty Channel Copy"),
&color);
if (template)
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);
gimp_image_undo_group_end (gimage);
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);
gimp_color_panel_set_context (GIMP_COLOR_PANEL (options->color_panel),
gimp_get_user_context (gimage->gimp));
/* The dialog */
options->query_box =
gimp_viewable_dialog_new (GIMP_VIEWABLE (gimage),
_("New Channel"), "gimp-channel-new",
GIMP_STOCK_CHANNEL,
_("New Channel Options"),
parent,
gimp_standard_help_func,
GIMP_HELP_CHANNEL_NEW,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
g_object_weak_ref (G_OBJECT (options->query_box),
(GWeakNotify) g_free,
options);
g_signal_connect (options->query_box, "response",
G_CALLBACK (new_channel_query_response),
options);
/* The main hbox */
hbox = gtk_hbox_new (FALSE, 4);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 6);
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_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:"), 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_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 (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_response (GtkWidget *widget,
gint response_id,
EditChannelOptions *options)
{
if (response_id == GTK_RESPONSE_OK)
{
GimpChannel *channel = options->channel;
if (options->gimage)
{
const gchar *new_name;
GimpRGB color;
gboolean name_changed = FALSE;
gboolean color_changed = FALSE;
new_name = gtk_entry_get_text (GTK_ENTRY (options->name_entry));
gimp_color_button_get_color (GIMP_COLOR_BUTTON (options->color_panel),
&color);
if (strcmp (new_name, gimp_object_get_name (GIMP_OBJECT (channel))))
name_changed = TRUE;
if (gimp_rgba_distance (&color, &channel->color) > 0.0001)
color_changed = TRUE;
if (name_changed && color_changed)
gimp_image_undo_group_start (options->gimage,
GIMP_UNDO_GROUP_ITEM_PROPERTIES,
_("Channel Attributes"));
if (name_changed)
gimp_item_rename (GIMP_ITEM (channel), new_name);
if (color_changed)
gimp_channel_set_color (channel, &color, TRUE);
if (name_changed && color_changed)
gimp_image_undo_group_end (options->gimage);
if (name_changed || color_changed)
gimp_image_flush (options->gimage);
}
}
gtk_widget_destroy (options->query_box);
}
void
channels_edit_channel_query (GimpChannel *channel,
GtkWidget *parent)
{
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);
gimp_color_panel_set_context (GIMP_COLOR_PANEL (options->color_panel),
gimp_get_user_context (options->gimage->gimp));
/* The dialog */
options->query_box =
gimp_viewable_dialog_new (GIMP_VIEWABLE (channel),
_("Channel Attributes"), "gimp-channel-edit",
GIMP_STOCK_EDIT,
_("Edit Channel Attributes"),
parent,
gimp_standard_help_func,
GIMP_HELP_CHANNEL_EDIT,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
g_object_weak_ref (G_OBJECT (options->query_box),
(GWeakNotify) g_free,
options);
g_signal_connect (options->query_box, "response",
G_CALLBACK (edit_channel_query_response),
options);
/* The main hbox */
hbox = gtk_hbox_new (FALSE, 4);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 6);
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_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:"), 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_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 (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);
}
/* 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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