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gimp/app/dialogs/palette-import-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 <string.h>
#include <gtk/gtk.h>
#include "libgimpcolor/gimpcolor.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "apptypes.h"
#include "context_manager.h"
#include "gimage.h"
#include "gimpcontainer.h"
#include "gimpcontext.h"
#include "gimpdatafactory.h"
#include "gimpgradient.h"
#include "gimpimage.h"
#include "gimppalette.h"
#include "gimppalette-import.h"
#include "gradient_select.h"
#include "palette.h"
#include "palette_import.h"
#include "temp_buf.h"
#include "pdb/procedural_db.h"
#include "libgimp/gimpintl.h"
#define IMPORT_PREVIEW_WIDTH 80
#define IMPORT_PREVIEW_HEIGHT 80
typedef enum
{
GRAD_IMPORT = 0,
IMAGE_IMPORT = 1,
INDEXED_IMPORT = 2
} ImportType;
typedef struct _ImportDialog ImportDialog;
struct _ImportDialog
{
GtkWidget *dialog;
GtkWidget *preview;
GtkWidget *entry;
GtkWidget *select_area;
GtkWidget *select;
GtkWidget *image_list;
GtkWidget *image_menu_item_image;
GtkWidget *image_menu_item_indexed;
GtkWidget *image_menu_item_gradient;
GtkWidget *optionmenu1_menu;
GtkWidget *type_option;
GtkWidget *threshold_scale;
GtkWidget *threshold_text;
GtkAdjustment *threshold;
GtkAdjustment *sample;
ImportType import_type;
GimpImage *gimage;
};
static ImportDialog *import_dialog = NULL;
/*****************************************************************************/
/* palette import dialog functions *****************************************/
/* functions to create & update the import dialog's gradient selection *****/
static void
palette_import_select_grad_callback (GtkWidget *widget,
gpointer data)
{
/* Popup grad edit box .... */
gradient_dialog_create ();
}
static void
palette_import_fill_grad_preview (GtkWidget *preview,
GimpGradient *gradient)
{
guchar buffer[3*IMPORT_PREVIEW_WIDTH];
gint loop;
guchar *p = buffer;
gdouble dx, cur_x;
GimpRGB color;
dx = 1.0/ (IMPORT_PREVIEW_WIDTH - 1);
cur_x = 0;
for (loop = 0 ; loop < IMPORT_PREVIEW_WIDTH; loop++)
{
gimp_gradient_get_color_at (gradient, cur_x, &color);
*p++ = (guchar) (color.r * 255.999);
*p++ = (guchar) (color.g * 255.999);
*p++ = (guchar) (color.b * 255.999);
cur_x += dx;
}
for (loop = 0 ; loop < IMPORT_PREVIEW_HEIGHT; loop++)
{
gtk_preview_draw_row (GTK_PREVIEW (preview), buffer, 0, loop,
IMPORT_PREVIEW_WIDTH);
}
gtk_widget_draw (preview, NULL);
}
static void
palette_import_gradient_update (GimpContext *context,
GimpGradient *gradient,
gpointer data)
{
if (import_dialog && import_dialog->import_type == GRAD_IMPORT)
{
/* redraw gradient */
palette_import_fill_grad_preview (import_dialog->preview, gradient);
gtk_entry_set_text (GTK_ENTRY (import_dialog->entry),
GIMP_OBJECT (gradient)->name);
}
}
/* functions to create & update the import dialog's image selection ********/
static void
palette_import_gimlist_cb (gpointer im,
gpointer data)
{
GSList **l;
l = (GSList**) data;
*l = g_slist_prepend (*l, im);
}
static void
palette_import_gimlist_indexed_cb (gpointer im,
gpointer data)
{
GimpImage *gimage = GIMP_IMAGE (im);
GSList **l;
if (gimp_image_base_type (gimage) == INDEXED)
{
l = (GSList**) data;
*l = g_slist_prepend (*l, im);
}
}
static void
palette_import_update_image_preview (GimpImage *gimage)
{
TempBuf *preview_buf;
gchar *src;
gchar *buf;
gint x, y, has_alpha;
gint sel_width, sel_height;
gint pwidth, pheight;
import_dialog->gimage = gimage;
/* Calculate preview size */
sel_width = gimage->width;
sel_height = gimage->height;
if (sel_width > sel_height)
{
pwidth = MIN (sel_width, IMPORT_PREVIEW_WIDTH);
pheight = sel_height * pwidth / sel_width;
}
else
{
pheight = MIN (sel_height, IMPORT_PREVIEW_HEIGHT);
pwidth = sel_width * pheight / sel_height;
}
/* Min size is 2 */
preview_buf = gimp_viewable_get_new_preview (GIMP_VIEWABLE (gimage),
MAX (pwidth, 2),
MAX (pheight, 2));
gtk_preview_size (GTK_PREVIEW (import_dialog->preview),
preview_buf->width,
preview_buf->height);
buf = g_new (gchar, IMPORT_PREVIEW_WIDTH * 3);
src = (gchar *) temp_buf_data (preview_buf);
has_alpha = (preview_buf->bytes == 2 || preview_buf->bytes == 4);
for (y = 0; y <preview_buf->height ; y++)
{
if (preview_buf->bytes == (1+has_alpha))
for (x = 0; x < preview_buf->width; x++)
{
buf[x*3+0] = src[x];
buf[x*3+1] = src[x];
buf[x*3+2] = src[x];
}
else
for (x = 0; x < preview_buf->width; x++)
{
gint stride = 3 + has_alpha;
buf[x*3+0] = src[x*stride+0];
buf[x*3+1] = src[x*stride+1];
buf[x*3+2] = src[x*stride+2];
}
gtk_preview_draw_row (GTK_PREVIEW (import_dialog->preview),
(guchar *)buf, 0, y, preview_buf->width);
src += preview_buf->width * preview_buf->bytes;
}
g_free (buf);
temp_buf_free (preview_buf);
gtk_widget_hide (import_dialog->preview);
gtk_widget_draw (import_dialog->preview, NULL);
gtk_widget_show (import_dialog->preview);
}
static void
palette_import_image_sel_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
gchar *lab;
gimage = GIMP_IMAGE (data);
palette_import_update_image_preview (gimage);
lab = g_strdup_printf ("%s-%d",
g_basename (gimp_image_filename (import_dialog->gimage)),
pdb_image_to_id (import_dialog->gimage));
gtk_entry_set_text (GTK_ENTRY (import_dialog->entry), lab);
g_free (lab);
}
static void
palette_import_image_menu_add (GimpImage *gimage)
{
GtkWidget *menuitem;
gchar *lab;
lab = g_strdup_printf ("%s-%d",
g_basename (gimp_image_filename (gimage)),
pdb_image_to_id (gimage));
menuitem = gtk_menu_item_new_with_label (lab);
g_free (lab);
gtk_widget_show (menuitem);
gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
GTK_SIGNAL_FUNC (palette_import_image_sel_callback),
gimage);
gtk_menu_append (GTK_MENU (import_dialog->optionmenu1_menu), menuitem);
}
/* Last Param gives us control over what goes in the menu on a delete oper */
static void
palette_import_image_menu_activate (gint redo,
ImportType type,
GimpImage *del_image)
{
GSList *list = NULL;
gint num_images;
GimpImage *last_img = NULL;
GimpImage *first_img = NULL;
gint act_num = -1;
gint count = 0;
gchar *lab;
if (! import_dialog)
return;
if (import_dialog->import_type == type && !redo)
return;
/* Destroy existing widget if necessary */
if (import_dialog->image_list)
{
if (redo) /* Preserve settings in this case */
last_img = import_dialog->gimage;
gtk_widget_hide (import_dialog->image_list);
gtk_widget_destroy (import_dialog->image_list);
import_dialog->image_list = NULL;
}
import_dialog->import_type= type;
/* Get list of images */
if (import_dialog->import_type == INDEXED_IMPORT)
{
gimp_container_foreach (image_context,
palette_import_gimlist_indexed_cb,
&list);
}
else
{
gimp_container_foreach (image_context,
palette_import_gimlist_cb,
&list);
}
num_images = g_slist_length (list);
if (num_images)
{
GtkWidget *optionmenu1;
GtkWidget *optionmenu1_menu;
gint i;
import_dialog->image_list = optionmenu1 = gtk_option_menu_new ();
gtk_widget_set_usize (optionmenu1, IMPORT_PREVIEW_WIDTH, -1);
import_dialog->optionmenu1_menu = optionmenu1_menu = gtk_menu_new ();
for (i = 0; i < num_images; i++, list = g_slist_next (list))
{
if (GIMP_IMAGE (list->data) != del_image)
{
if (first_img == NULL)
first_img = GIMP_IMAGE (list->data);
palette_import_image_menu_add (GIMP_IMAGE (list->data));
if (last_img == GIMP_IMAGE (list->data))
act_num = count;
else
count++;
}
}
gtk_option_menu_set_menu (GTK_OPTION_MENU (optionmenu1),
optionmenu1_menu);
gtk_widget_hide (import_dialog->select);
gtk_box_pack_start (GTK_BOX (import_dialog->select_area),
optionmenu1, FALSE, FALSE, 0);
if (last_img != NULL && last_img != del_image)
palette_import_update_image_preview (last_img);
else if (first_img != NULL)
palette_import_update_image_preview (first_img);
gtk_widget_show (optionmenu1);
/* reset to last one */
if (redo && act_num >= 0)
{
gchar *lab;
lab = g_strdup_printf ("%s-%d",
g_basename (gimp_image_filename (import_dialog->gimage)),
pdb_image_to_id (import_dialog->gimage));
gtk_option_menu_set_history (GTK_OPTION_MENU (optionmenu1), act_num);
gtk_entry_set_text (GTK_ENTRY (import_dialog->entry), lab);
g_free (lab);
}
}
g_slist_free (list);
lab = g_strdup_printf ("%s-%d",
g_basename (gimp_image_filename (import_dialog->gimage)),
pdb_image_to_id (import_dialog->gimage));
gtk_entry_set_text (GTK_ENTRY (import_dialog->entry), lab);
g_free (lab);
}
/* the import source menu item callbacks ***********************************/
static void
palette_import_grad_callback (GtkWidget *widget,
gpointer data)
{
if (import_dialog)
{
GimpGradient *gradient;
gradient = gimp_context_get_gradient (gimp_context_get_user ());
import_dialog->import_type = GRAD_IMPORT;
if (import_dialog->image_list)
{
gtk_widget_hide (import_dialog->image_list);
gtk_widget_destroy (import_dialog->image_list);
import_dialog->image_list = NULL;
}
gtk_widget_show (import_dialog->select);
palette_import_fill_grad_preview (import_dialog->preview, gradient);
gtk_entry_set_text (GTK_ENTRY (import_dialog->entry),
GIMP_OBJECT (gradient)->name);
gtk_widget_set_sensitive (import_dialog->threshold_scale, FALSE);
gtk_widget_set_sensitive (import_dialog->threshold_text, FALSE);
}
}
static void
palette_import_image_callback (GtkWidget *widget,
gpointer data)
{
palette_import_image_menu_activate (FALSE, IMAGE_IMPORT, NULL);
gtk_widget_set_sensitive (import_dialog->threshold_scale, TRUE);
gtk_widget_set_sensitive (import_dialog->threshold_text, TRUE);
}
static void
palette_import_indexed_callback (GtkWidget *widget,
gpointer data)
{
palette_import_image_menu_activate (FALSE, INDEXED_IMPORT, NULL);
gtk_widget_set_sensitive (import_dialog->threshold_scale, FALSE);
gtk_widget_set_sensitive (import_dialog->threshold_text, FALSE);
}
/* functions & callbacks to keep the import dialog uptodate ****************/
static gint
palette_import_image_count (ImportType type)
{
GSList *list = NULL;
gint num_images = 0;
if (type == INDEXED_IMPORT)
{
gimp_container_foreach (image_context,
palette_import_gimlist_indexed_cb,
&list);
}
else
{
gimp_container_foreach (image_context,
palette_import_gimlist_cb,
&list);
}
num_images = g_slist_length (list);
g_slist_free (list);
return num_images;
}
static void
palette_import_image_new (GimpContainer *container,
GimpImage *gimage,
gpointer data)
{
if (! import_dialog)
return;
if (! GTK_WIDGET_IS_SENSITIVE (import_dialog->image_menu_item_image))
{
gtk_widget_set_sensitive (import_dialog->image_menu_item_image, TRUE);
return;
}
if (! GTK_WIDGET_IS_SENSITIVE (import_dialog->image_menu_item_indexed) &&
gimp_image_base_type(gimage) == INDEXED)
{
gtk_widget_set_sensitive (import_dialog->image_menu_item_indexed, TRUE);
return;
}
/* Now fill in the names if image menu shown */
if (import_dialog->import_type == IMAGE_IMPORT ||
import_dialog->import_type == INDEXED_IMPORT)
{
palette_import_image_menu_activate (TRUE, import_dialog->import_type,
NULL);
}
}
static void
palette_import_image_destroyed (GimpContainer *container,
GimpImage *gimage,
gpointer data)
{
if (! import_dialog)
return;
if (palette_import_image_count (import_dialog->import_type) <= 1)
{
/* Back to gradient type */
gtk_option_menu_set_history (GTK_OPTION_MENU (import_dialog->type_option), 0);
palette_import_grad_callback (NULL, NULL);
if (import_dialog->image_menu_item_image)
gtk_widget_set_sensitive (import_dialog->image_menu_item_image, FALSE);
return;
}
if (import_dialog->import_type == IMAGE_IMPORT ||
import_dialog->import_type == INDEXED_IMPORT)
{
palette_import_image_menu_activate (TRUE, import_dialog->import_type,
gimage);
}
}
void
palette_import_image_renamed (GimpImage* gimage)
{
/* Now fill in the names if image menu shown */
if (import_dialog &&
(import_dialog->import_type == IMAGE_IMPORT ||
import_dialog->import_type == INDEXED_IMPORT))
{
palette_import_image_menu_activate (TRUE, import_dialog->import_type,
NULL);
}
}
/* the palette import action area callbacks ********************************/
static void
palette_import_close_callback (GtkWidget *widget,
gpointer data)
{
gtk_widget_destroy (import_dialog->dialog);
g_free (import_dialog);
import_dialog = NULL;
}
static void
palette_import_import_callback (GtkWidget *widget,
gpointer data)
{
GimpPalette *palette = NULL;
gchar *palette_name;
GimpGradient *gradient;
gint n_colors;
gint threshold;
if (! import_dialog)
return;
palette_name = gtk_entry_get_text (GTK_ENTRY (import_dialog->entry));
if (! (palette_name && strlen (palette_name)))
palette_name = g_strdup (_("Unnamed"));
else
palette_name = g_strdup (palette_name);
gradient = gimp_context_get_gradient (gimp_context_get_user ());
n_colors = (gint) import_dialog->sample->value;
threshold = (gint) import_dialog->threshold->value;
switch (import_dialog->import_type)
{
case GRAD_IMPORT:
palette = gimp_palette_import_from_gradient (gradient,
palette_name,
n_colors);
break;
case IMAGE_IMPORT:
palette = gimp_palette_import_from_image (import_dialog->gimage,
palette_name,
n_colors,
threshold);
break;
case INDEXED_IMPORT:
palette = gimp_palette_import_from_indexed_image (import_dialog->gimage,
palette_name);
break;
}
g_free (palette_name);
if (palette)
gimp_container_add (global_palette_factory->container,
GIMP_OBJECT (palette));
palette_import_close_callback (NULL, NULL);
}
/* the palette import dialog constructor ***********************************/
static ImportDialog *
palette_import_dialog_new (void)
{
GtkWidget *dialog;
GtkWidget *hbox;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *table;
GtkWidget *label;
GtkWidget *spinbutton;
GtkWidget *button;
GtkWidget *entry;
GtkWidget *optionmenu;
GtkWidget *optionmenu_menu;
GtkWidget *menuitem;
GtkWidget *image;
GtkWidget *hscale;
import_dialog = g_new (ImportDialog, 1);
import_dialog->image_list = NULL;
import_dialog->gimage = NULL;
import_dialog->dialog = dialog =
gimp_dialog_new (_("Import Palette"), "import_palette",
gimp_standard_help_func,
"dialogs/palette_editor/import_palette.html",
GTK_WIN_POS_NONE,
FALSE, TRUE, FALSE,
_("Import"), palette_import_import_callback,
import_dialog, NULL, NULL, FALSE, FALSE,
_("Close"), palette_import_close_callback,
import_dialog, NULL, NULL, TRUE, TRUE,
NULL);
/* The main hbox */
hbox = gtk_hbox_new (FALSE, 4);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 4);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox), hbox);
gtk_widget_show (hbox);
/* The "Import" frame */
frame = gtk_frame_new (_("Import"));
gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
table = gtk_table_new (4, 2, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
/* The source's name */
label = gtk_label_new (_("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, 0, 0);
gtk_widget_show (label);
entry = import_dialog->entry = gtk_entry_new ();
gtk_table_attach_defaults (GTK_TABLE (table), entry, 1, 2, 0, 1);
{
GimpGradient* gradient;
gradient = gimp_context_get_gradient (gimp_context_get_current ());
gtk_entry_set_text (GTK_ENTRY (entry),
gradient ? GIMP_OBJECT (gradient)->name : _("new_import"));
}
gtk_widget_show (entry);
/* The source type */
label = gtk_label_new (_("Source:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
GTK_EXPAND | GTK_FILL, GTK_EXPAND, 0, 0);
gtk_widget_show (label);
optionmenu = import_dialog->type_option = gtk_option_menu_new ();
optionmenu_menu = gtk_menu_new ();
gtk_table_attach_defaults (GTK_TABLE (table), optionmenu, 1, 2, 1, 2);
menuitem = import_dialog->image_menu_item_gradient =
gtk_menu_item_new_with_label (_("Gradient"));
gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
GTK_SIGNAL_FUNC (palette_import_grad_callback),
NULL);
gtk_menu_append (GTK_MENU (optionmenu_menu), menuitem);
gtk_widget_show (menuitem);
menuitem = import_dialog->image_menu_item_image =
gtk_menu_item_new_with_label (_("Image"));
gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
GTK_SIGNAL_FUNC (palette_import_image_callback),
import_dialog);
gtk_menu_append (GTK_MENU (optionmenu_menu), menuitem);
gtk_widget_show (menuitem);
gtk_widget_set_sensitive (menuitem,
palette_import_image_count (IMAGE_IMPORT) > 0);
menuitem = import_dialog->image_menu_item_indexed =
gtk_menu_item_new_with_label (_("Indexed Palette"));
gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
GTK_SIGNAL_FUNC (palette_import_indexed_callback),
import_dialog);
gtk_menu_append (GTK_MENU (optionmenu_menu), menuitem);
gtk_widget_show (menuitem);
gtk_widget_set_sensitive (menuitem,
palette_import_image_count (INDEXED_IMPORT) > 0);
gtk_option_menu_set_menu (GTK_OPTION_MENU (optionmenu), optionmenu_menu);
gtk_widget_show (optionmenu);
/* The sample size */
label = gtk_label_new (_("Sample Size:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 2, 3,
GTK_EXPAND | GTK_FILL, GTK_EXPAND, 0, 0);
gtk_widget_show (label);
import_dialog->sample =
GTK_ADJUSTMENT(gtk_adjustment_new (256, 2, 10000, 1, 10, 10));
spinbutton = gtk_spin_button_new (import_dialog->sample, 1, 0);
gtk_table_attach_defaults (GTK_TABLE (table), spinbutton, 1, 2, 2, 3);
gtk_widget_show (spinbutton);
/* The interval */
label = import_dialog->threshold_text = gtk_label_new (_("Interval:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 3, 4,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_set_sensitive(label, FALSE);
gtk_widget_show (label);
import_dialog->threshold =
GTK_ADJUSTMENT (gtk_adjustment_new (1, 1, 128, 1, 1, 1));
hscale = import_dialog->threshold_scale =
gtk_hscale_new (import_dialog->threshold);
gtk_scale_set_value_pos (GTK_SCALE (hscale), GTK_POS_TOP);
gtk_scale_set_digits (GTK_SCALE (hscale), 0);
gtk_table_attach_defaults (GTK_TABLE (table), hscale, 1, 2, 3, 4);
gtk_widget_set_sensitive (hscale, FALSE);
gtk_widget_show (hscale);
/* The preview frame */
frame = gtk_frame_new (_("Preview"));
gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
vbox = import_dialog->select_area = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
image = import_dialog->preview = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_preview_set_dither (GTK_PREVIEW (image), GDK_RGB_DITHER_MAX);
gtk_preview_size (GTK_PREVIEW (image),
IMPORT_PREVIEW_WIDTH, IMPORT_PREVIEW_HEIGHT);
gtk_widget_set_usize (image, IMPORT_PREVIEW_WIDTH, IMPORT_PREVIEW_HEIGHT);
gtk_box_pack_start (GTK_BOX (vbox), image, FALSE, FALSE, 0);
gtk_widget_show (image);
button = import_dialog->select = gtk_button_new_with_label (_("Select"));
GTK_WIDGET_UNSET_FLAGS (button, GTK_RECEIVES_DEFAULT);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (palette_import_select_grad_callback),
image);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
/* Fill with the selected gradient */
palette_import_fill_grad_preview
(image, gimp_context_get_gradient (gimp_context_get_user ()));
import_dialog->import_type = GRAD_IMPORT;
gtk_signal_connect (GTK_OBJECT (gimp_context_get_user ()), "gradient_changed",
GTK_SIGNAL_FUNC (palette_import_gradient_update),
NULL);
/* keep the dialog up-to-date */
gtk_signal_connect (GTK_OBJECT (image_context), "add",
GTK_SIGNAL_FUNC (palette_import_image_new),
NULL);
gtk_signal_connect (GTK_OBJECT (image_context), "remove",
GTK_SIGNAL_FUNC (palette_import_image_destroyed),
NULL);
return import_dialog;
}
void
palette_import_dialog_show (void)
{
if (! import_dialog)
palette_import_dialog_new ();
if (! GTK_WIDGET_VISIBLE (import_dialog->dialog))
{
gtk_widget_show (import_dialog->dialog);
}
else if (import_dialog->dialog->window)
{
gdk_window_raise (import_dialog->dialog->window);
}
}
void
palette_import_dialog_destroy (void)
{
if (import_dialog)
{
gtk_widget_destroy (import_dialog->dialog);
g_free (import_dialog);
import_dialog = NULL;
}
}
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