gimp/app/gui/palette-select.c

272 lines
7.0 KiB
C

/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
* Copyright (C) 1998 Andy Thomas (alt@picnic.demon.co.uk)
*
* 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/gimppalette.h"
#include "pdb/procedural_db.h"
#include "widgets/gimpcontainerview.h"
#include "widgets/gimpdatafactoryview.h"
#include "dialogs-constructors.h"
#include "menus.h"
#include "palette-select.h"
#include "gimp-intl.h"
#define STD_PALETTE_COLUMNS 6
#define STD_PALETTE_ROWS 5
/* local function prototypes */
static void palette_select_change_callbacks (PaletteSelect *psp,
gboolean closing);
static void palette_select_palette_changed (GimpContext *context,
GimpPalette *palette,
PaletteSelect *psp);
static void palette_select_close_callback (GtkWidget *widget,
PaletteSelect *psp);
/* list of active dialogs */
static GSList *palette_active_dialogs = NULL;
/* public functions */
PaletteSelect *
palette_select_new (Gimp *gimp,
const gchar *title,
const gchar *initial_palette,
const gchar *callback_name)
{
PaletteSelect *psp;
GimpPalette *active = NULL;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (title != NULL, NULL);
if (gimp->no_data)
{
static gboolean first_call = TRUE;
if (first_call)
gimp_data_factory_data_init (gimp->palette_factory, FALSE);
first_call = FALSE;
}
if (initial_palette && strlen (initial_palette))
{
active = (GimpPalette *)
gimp_container_get_child_by_name (gimp->palette_factory->container,
initial_palette);
}
if (! active)
active = gimp_context_get_palette (gimp_get_current_context (gimp));
if (! active)
return NULL;
psp = g_new0 (PaletteSelect, 1);
/* Add to active palette dialogs list */
palette_active_dialogs = g_slist_append (palette_active_dialogs, psp);
psp->context = gimp_context_new (gimp, title, NULL);
psp->callback_name = g_strdup (callback_name);
gimp_context_set_palette (psp->context, active);
g_signal_connect (psp->context, "palette_changed",
G_CALLBACK (palette_select_palette_changed),
psp);
/* the shell */
psp->shell = gimp_dialog_new (title, "palette_selection",
gimp_standard_help_func,
"dialogs/palette_selection.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
GTK_STOCK_CLOSE, palette_select_close_callback,
psp, NULL, NULL, TRUE, TRUE,
NULL);
/* The Palette List */
psp->view = gimp_data_factory_view_new (GIMP_VIEW_TYPE_LIST,
gimp->palette_factory,
dialogs_edit_palette_func,
psp->context,
GIMP_PREVIEW_SIZE_MEDIUM, 1,
global_menu_factory, "<Palettes>");
gimp_container_view_set_size_request (GIMP_CONTAINER_VIEW (GIMP_CONTAINER_EDITOR (psp->view)->view),
5 * (GIMP_PREVIEW_SIZE_MEDIUM + 2),
8 * (GIMP_PREVIEW_SIZE_MEDIUM + 2));
gtk_container_set_border_width (GTK_CONTAINER (psp->view), 4);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (psp->shell)->vbox), psp->view);
gtk_widget_show (psp->view);
gtk_widget_show (psp->shell);
return psp;
}
void
palette_select_free (PaletteSelect *psp)
{
g_return_if_fail (psp != NULL);
gtk_widget_destroy (psp->shell);
/* remove from active list */
palette_active_dialogs = g_slist_remove (palette_active_dialogs, psp);
if (psp->callback_name)
g_free (psp->callback_name);
if (psp->context)
g_object_unref (psp->context);
g_free (psp);
}
PaletteSelect *
palette_select_get_by_callback (const gchar *callback_name)
{
GSList *list;
PaletteSelect *psp;
for (list = palette_active_dialogs; list; list = g_slist_next (list))
{
psp = (PaletteSelect *) list->data;
if (psp->callback_name && ! strcmp (callback_name, psp->callback_name))
return psp;
}
return NULL;
}
void
palette_select_dialogs_check (void)
{
PaletteSelect *psp;
GSList *list;
list = palette_active_dialogs;
while (list)
{
psp = (PaletteSelect *) list->data;
list = g_slist_next (list);
if (psp->callback_name)
{
if (! procedural_db_lookup (psp->context->gimp, psp->callback_name))
palette_select_close_callback (NULL, psp);
}
}
}
/* private functions */
static void
palette_select_change_callbacks (PaletteSelect *psp,
gboolean closing)
{
ProcRecord *proc;
GimpPalette *palette;
static gboolean busy = FALSE;
if (! (psp && psp->callback_name) || busy)
return;
busy = TRUE;
palette = gimp_context_get_palette (psp->context);
/* If its still registered run it */
proc = procedural_db_lookup (psp->context->gimp, psp->callback_name);
if (proc && palette)
{
Argument *return_vals;
gint nreturn_vals;
return_vals =
procedural_db_run_proc (psp->context->gimp,
psp->callback_name,
&nreturn_vals,
GIMP_PDB_STRING, GIMP_OBJECT (palette)->name,
GIMP_PDB_INT32, palette->n_colors,
GIMP_PDB_INT32, closing,
GIMP_PDB_END);
if (!return_vals || return_vals[0].value.pdb_int != GIMP_PDB_SUCCESS)
g_message (_("Unable to run palette callback.\n"
"The corresponding plug-in may have crashed."));
if (return_vals)
procedural_db_destroy_args (return_vals, nreturn_vals);
}
busy = FALSE;
}
static void
palette_select_palette_changed (GimpContext *context,
GimpPalette *palette,
PaletteSelect *psp)
{
if (palette)
palette_select_change_callbacks (psp, FALSE);
}
static void
palette_select_close_callback (GtkWidget *widget,
PaletteSelect *psp)
{
palette_select_change_callbacks (psp, TRUE);
palette_select_free (psp);
}