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gimp/app/gui/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 "libgimpwidgets/gimpwidgets.h"
#include "gui-types.h"
#include "core/gimp.h"
#include "core/gimpcontainer.h"
#include "core/gimpcontext.h"
#include "core/gimpdatafactory.h"
#include "core/gimpimage.h"
#include "core/gimppalette.h"
#include "core/gimppalette-import.h"
#include "widgets/gimpcontainermenuimpl.h"
#include "widgets/gimppreview.h"
#include "gradient-select.h"
#include "palette-import-dialog.h"
#include "libgimp/gimpintl.h"
#define IMPORT_PREVIEW_SIZE 80
typedef enum
{
GRADIENT_IMPORT,
IMAGE_IMPORT
} ImportType;
typedef struct _ImportDialog ImportDialog;
struct _ImportDialog
{
GtkWidget *dialog;
GimpContext *context;
ImportType import_type;
GtkWidget *select_area;
GtkWidget *preview;
GtkWidget *select_button;
GtkWidget *image_menu;
GtkWidget *entry;
GtkWidget *image_menu_item_image;
GtkWidget *image_menu_item_gradient;
GtkWidget *type_option;
GtkWidget *threshold_scale;
GtkWidget *threshold_text;
GtkAdjustment *threshold;
GtkAdjustment *sample;
};
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)
{
ImportDialog *import_dialog;
import_dialog = (ImportDialog *) data;
gradient_dialog_create (import_dialog->context->gimp);
}
static void
palette_import_gradient_changed (GimpContext *context,
GimpGradient *gradient,
gpointer data)
{
ImportDialog *import_dialog;
import_dialog = (ImportDialog *) data;
if (gradient && import_dialog->import_type == GRADIENT_IMPORT)
{
gimp_preview_set_viewable (GIMP_PREVIEW (import_dialog->preview),
GIMP_VIEWABLE (gradient));
gtk_entry_set_text (GTK_ENTRY (import_dialog->entry),
GIMP_OBJECT (gradient)->name);
}
}
static void
palette_import_image_changed (GimpContext *context,
GimpImage *gimage,
gpointer data)
{
ImportDialog *import_dialog;
import_dialog = (ImportDialog *) data;
if (gimage && import_dialog->import_type == IMAGE_IMPORT)
{
gchar *basename;
gchar *label;
gimp_preview_set_viewable (GIMP_PREVIEW (import_dialog->preview),
GIMP_VIEWABLE (gimage));
basename = g_path_get_basename (gimp_image_get_filename (gimage));
label = g_strdup_printf ("%s-%d", basename, gimp_image_get_ID (gimage));
g_free (basename);
gtk_entry_set_text (GTK_ENTRY (import_dialog->entry), label);
g_free (label);
}
}
/* the import source menu item callbacks ***********************************/
static void
palette_import_grad_callback (GtkWidget *widget,
gpointer data)
{
ImportDialog *import_dialog;
GimpGradient *gradient;
import_dialog = (ImportDialog *) data;
gradient = gimp_context_get_gradient (import_dialog->context);
import_dialog->import_type = GRADIENT_IMPORT;
gtk_widget_hide (import_dialog->image_menu);
gtk_widget_show (import_dialog->select_button);
gtk_widget_destroy (import_dialog->preview);
import_dialog->preview = gimp_preview_new_full (GIMP_VIEWABLE (gradient),
IMPORT_PREVIEW_SIZE,
IMPORT_PREVIEW_SIZE,
1, FALSE, FALSE, FALSE);
gtk_box_pack_start (GTK_BOX (import_dialog->select_area),
import_dialog->preview,
FALSE, FALSE, 0);
gtk_box_reorder_child (GTK_BOX (import_dialog->select_area),
import_dialog->preview, 0);
gtk_widget_show (import_dialog->preview);
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)
{
ImportDialog *import_dialog;
GimpImage *gimage;
import_dialog = (ImportDialog *) data;
gimage = gimp_context_get_image (import_dialog->context);
if (! gimage)
{
gimage = (GimpImage *)
gimp_container_get_child_by_index (import_dialog->context->gimp->images, 0);
}
import_dialog->import_type = IMAGE_IMPORT;
gtk_widget_hide (import_dialog->select_button);
gtk_widget_show (import_dialog->image_menu);
gtk_widget_destroy (import_dialog->preview);
import_dialog->preview = gimp_preview_new_full (GIMP_VIEWABLE (gimage),
IMPORT_PREVIEW_SIZE,
IMPORT_PREVIEW_SIZE,
1, FALSE, FALSE, FALSE);
gtk_box_pack_start (GTK_BOX (import_dialog->select_area),
import_dialog->preview,
FALSE, FALSE, 0);
gtk_box_reorder_child (GTK_BOX (import_dialog->select_area),
import_dialog->preview, 0);
gtk_widget_show (import_dialog->preview);
gtk_widget_set_sensitive (import_dialog->threshold_scale, TRUE);
gtk_widget_set_sensitive (import_dialog->threshold_text, TRUE);
}
/* functions & callbacks to keep the import dialog uptodate ****************/
static void
palette_import_image_add (GimpContainer *container,
GimpImage *gimage,
gpointer data)
{
ImportDialog *import_dialog;
import_dialog = (ImportDialog *) data;
if (! GTK_WIDGET_IS_SENSITIVE (import_dialog->image_menu_item_image))
{
gtk_widget_set_sensitive (import_dialog->image_menu_item_image, TRUE);
}
}
static void
palette_import_image_remove (GimpContainer *container,
GimpImage *gimage,
gpointer data)
{
ImportDialog *import_dialog;
import_dialog = (ImportDialog *) data;
if (! gimp_container_num_children (import_dialog->context->gimp->images))
{
gimp_option_menu_set_history (GTK_OPTION_MENU (import_dialog->type_option),
GINT_TO_POINTER (GRADIENT_IMPORT));
gtk_widget_set_sensitive (import_dialog->image_menu_item_image, FALSE);
palette_import_grad_callback (NULL, import_dialog);
}
}
/* 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)
{
ImportDialog *import_dialog;
GimpPalette *palette = NULL;
gchar *palette_name;
GimpGradient *gradient;
GimpImage *gimage;
gint n_colors;
gint threshold;
import_dialog = (ImportDialog *) data;
palette_name = (gchar *) gtk_entry_get_text (GTK_ENTRY (import_dialog->entry));
if (! (palette_name && strlen (palette_name)))
palette_name = g_strdup (_("Untitled"));
else
palette_name = g_strdup (palette_name);
gradient = gimp_context_get_gradient (import_dialog->context);
gimage = gimp_context_get_image (import_dialog->context);
n_colors = (gint) import_dialog->sample->value;
threshold = (gint) import_dialog->threshold->value;
switch (import_dialog->import_type)
{
case GRADIENT_IMPORT:
palette = gimp_palette_import_from_gradient (gradient,
palette_name,
n_colors);
break;
case IMAGE_IMPORT:
if (gimp_image_base_type (gimage) == GIMP_INDEXED)
{
palette = gimp_palette_import_from_image (gimage,
palette_name,
n_colors,
threshold);
}
else
{
palette =
gimp_palette_import_from_indexed_image (gimage,
palette_name);
}
break;
}
g_free (palette_name);
if (palette)
gimp_container_add (import_dialog->context->gimp->palette_factory->container,
GIMP_OBJECT (palette));
palette_import_close_callback (NULL, NULL);
}
/* the palette import dialog constructor ***********************************/
static ImportDialog *
palette_import_dialog_new (Gimp *gimp)
{
ImportDialog *import_dialog;
GimpGradient *gradient;
GtkWidget *hbox;
GtkWidget *hbox2;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *table;
GtkWidget *label;
GtkWidget *spinbutton;
GtkWidget *menu;
gradient = gimp_context_get_gradient (gimp_get_user_context (gimp));
import_dialog = g_new0 (ImportDialog, 1);
import_dialog->context = gimp_context_new (gimp, "Palette Import",
gimp_get_user_context (gimp));
import_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,
GTK_STOCK_CANCEL, palette_import_close_callback,
import_dialog, NULL, NULL, TRUE, TRUE,
_("Import"), palette_import_import_callback,
import_dialog, NULL, NULL, FALSE, FALSE,
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 (import_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);
import_dialog->entry = gtk_entry_new ();
gtk_table_attach_defaults (GTK_TABLE (table), import_dialog->entry,
1, 2, 0, 1);
gtk_entry_set_text (GTK_ENTRY (import_dialog->entry),
gradient ? GIMP_OBJECT (gradient)->name : _("new_import"));
gtk_widget_show (import_dialog->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);
import_dialog->type_option =
gimp_option_menu_new (FALSE,
_("Gradient"),
palette_import_grad_callback, import_dialog,
GINT_TO_POINTER (GRADIENT_IMPORT),
&import_dialog->image_menu_item_gradient,
TRUE,
_("Image"),
palette_import_image_callback, import_dialog,
GINT_TO_POINTER (IMAGE_IMPORT),
&import_dialog->image_menu_item_image,
FALSE,
NULL);
gtk_widget_set_sensitive (import_dialog->image_menu_item_image,
gimp_container_num_children (gimp->images) > 0);
gtk_table_attach_defaults (GTK_TABLE (table), import_dialog->type_option,
1, 2, 1, 2);
gtk_widget_show (import_dialog->type_option);
/* 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 */
import_dialog->threshold_text = gtk_label_new (_("Interval:"));
gtk_misc_set_alignment (GTK_MISC (import_dialog->threshold_text), 1.0, 1.0);
gtk_table_attach (GTK_TABLE (table), import_dialog->threshold_text,
0, 1, 3, 4,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_set_sensitive (import_dialog->threshold_text, FALSE);
gtk_widget_show (import_dialog->threshold_text);
import_dialog->threshold = GTK_ADJUSTMENT (gtk_adjustment_new (1, 1, 128,
1, 1, 1));
import_dialog->threshold_scale = gtk_hscale_new (import_dialog->threshold);
gtk_scale_set_value_pos (GTK_SCALE (import_dialog->threshold_scale),
GTK_POS_TOP);
gtk_scale_set_digits (GTK_SCALE (import_dialog->threshold_scale), 0);
gtk_table_attach_defaults (GTK_TABLE (table), import_dialog->threshold_scale,
1, 2, 3, 4);
gtk_widget_set_sensitive (import_dialog->threshold_scale, FALSE);
gtk_widget_show (import_dialog->threshold_scale);
/* 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);
import_dialog->preview = gimp_preview_new_full (GIMP_VIEWABLE (gradient),
IMPORT_PREVIEW_SIZE,
IMPORT_PREVIEW_SIZE,
1, FALSE, FALSE, FALSE);
gtk_box_pack_start (GTK_BOX (vbox), import_dialog->preview, FALSE, FALSE, 0);
gtk_widget_show (import_dialog->preview);
import_dialog->select_button = gtk_button_new_with_label (_("Select"));
GTK_WIDGET_UNSET_FLAGS (import_dialog->select_button, GTK_RECEIVES_DEFAULT);
gtk_box_pack_start (GTK_BOX (vbox), import_dialog->select_button,
FALSE, FALSE, 0);
gtk_widget_show (import_dialog->select_button);
g_signal_connect (G_OBJECT (import_dialog->select_button), "clicked",
G_CALLBACK (palette_import_select_grad_callback),
import_dialog);
hbox2 = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox2, FALSE, FALSE, 0);
gtk_widget_show (hbox2);
import_dialog->image_menu = gtk_option_menu_new ();
gtk_box_pack_start (GTK_BOX (hbox2), import_dialog->image_menu, TRUE, TRUE, 0);
/* DON'T gtk_widget_show (import_dialog->image_menu); */
menu = gimp_container_menu_new (gimp->images, import_dialog->context, 24);
gtk_option_menu_set_menu (GTK_OPTION_MENU (import_dialog->image_menu), menu);
gtk_widget_show (menu);
import_dialog->import_type = GRADIENT_IMPORT;
/* keep the dialog up-to-date */
g_signal_connect (G_OBJECT (gimp->images), "add",
G_CALLBACK (palette_import_image_add),
import_dialog);
g_signal_connect (G_OBJECT (gimp->images), "remove",
G_CALLBACK (palette_import_image_remove),
import_dialog);
g_signal_connect (G_OBJECT (import_dialog->context), "gradient_changed",
G_CALLBACK (palette_import_gradient_changed),
import_dialog);
g_signal_connect (G_OBJECT (import_dialog->context), "image_changed",
G_CALLBACK (palette_import_image_changed),
import_dialog);
return import_dialog;
}
void
palette_import_dialog_show (Gimp *gimp)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
if (! import_dialog)
import_dialog = palette_import_dialog_new (gimp);
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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