mirror of https://github.com/GNOME/gimp.git
282 lines
7.7 KiB
C
282 lines
7.7 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <string.h>
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#include <gtk/gtk.h>
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#include "libgimpwidgets/gimpwidgets.h"
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#include "gui-types.h"
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#include "base/temp-buf.h"
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#include "core/gimp.h"
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#include "core/gimpcontainer.h"
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#include "core/gimpcontext.h"
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#include "core/gimpdatafactory.h"
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#include "core/gimppattern.h"
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#include "pdb/procedural_db.h"
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#include "widgets/gimpcontainerview.h"
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#include "widgets/gimpdatafactoryview.h"
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#include "widgets/gimphelp-ids.h"
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#include "menus.h"
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#include "pattern-select.h"
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#include "gimp-intl.h"
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/* local function prototypes */
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static void pattern_select_change_callbacks (PatternSelect *psp,
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gboolean closing);
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static void pattern_select_pattern_changed (GimpContext *context,
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GimpPattern *pattern,
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PatternSelect *psp);
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static void pattern_select_response (GtkWidget *widget,
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gint response_id,
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PatternSelect *psp);
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/* List of active dialogs */
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static GSList *pattern_active_dialogs = NULL;
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/* public functions */
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PatternSelect *
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pattern_select_new (Gimp *gimp,
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GimpContext *context,
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const gchar *title,
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const gchar *initial_pattern,
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const gchar *callback_name)
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{
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PatternSelect *psp;
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GimpPattern *active = NULL;
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g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
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g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
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g_return_val_if_fail (title != NULL, NULL);
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if (gimp->no_data)
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{
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static gboolean first_call = TRUE;
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if (first_call)
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gimp_data_factory_data_init (gimp->pattern_factory, FALSE);
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first_call = FALSE;
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}
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if (initial_pattern && strlen (initial_pattern))
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{
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active = (GimpPattern *)
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gimp_container_get_child_by_name (gimp->pattern_factory->container,
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initial_pattern);
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}
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if (! active)
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active = gimp_context_get_pattern (context);
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if (! active)
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return NULL;
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psp = g_new0 (PatternSelect, 1);
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/* Add to active pattern dialogs list */
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pattern_active_dialogs = g_slist_append (pattern_active_dialogs, psp);
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psp->context = gimp_context_new (gimp, title, NULL);
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psp->callback_name = g_strdup (callback_name);
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gimp_context_set_pattern (psp->context, active);
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g_signal_connect (psp->context, "pattern_changed",
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G_CALLBACK (pattern_select_pattern_changed),
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psp);
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/* the shell */
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psp->shell = gimp_dialog_new (title, "pattern_selection",
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NULL, 0,
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gimp_standard_help_func,
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GIMP_HELP_PATTERN_DIALOG,
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GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
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NULL);
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g_signal_connect (psp->shell, "response",
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G_CALLBACK (pattern_select_response),
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psp);
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/* the pattern grid */
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psp->view = gimp_data_factory_view_new (GIMP_VIEW_TYPE_GRID,
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gimp->pattern_factory,
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NULL,
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psp->context,
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GIMP_PREVIEW_SIZE_MEDIUM, 1,
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global_menu_factory, "<Patterns>");
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gimp_container_view_set_size_request (GIMP_CONTAINER_VIEW (GIMP_CONTAINER_EDITOR (psp->view)->view),
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6 * (GIMP_PREVIEW_SIZE_MEDIUM + 2),
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6 * (GIMP_PREVIEW_SIZE_MEDIUM + 2));
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gtk_container_set_border_width (GTK_CONTAINER (psp->view), 6);
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gtk_container_add (GTK_CONTAINER (GTK_DIALOG (psp->shell)->vbox), psp->view);
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gtk_widget_show (psp->view);
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gtk_widget_show (psp->shell);
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return psp;
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}
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void
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pattern_select_free (PatternSelect *psp)
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{
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g_return_if_fail (psp != NULL);
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gtk_widget_destroy (psp->shell);
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/* remove from active list */
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pattern_active_dialogs = g_slist_remove (pattern_active_dialogs, psp);
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if (psp->callback_name)
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g_free (psp->callback_name);
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if (psp->context)
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g_object_unref (psp->context);
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g_free (psp);
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}
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PatternSelect *
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pattern_select_get_by_callback (const gchar *callback_name)
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{
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GSList *list;
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PatternSelect *psp;
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for (list = pattern_active_dialogs; list; list = g_slist_next (list))
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{
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psp = (PatternSelect *) list->data;
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if (psp->callback_name && ! strcmp (callback_name, psp->callback_name))
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return psp;
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}
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return NULL;
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}
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void
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pattern_select_dialogs_check (void)
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{
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PatternSelect *psp;
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GSList *list;
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list = pattern_active_dialogs;
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while (list)
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{
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psp = (PatternSelect *) list->data;
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list = g_slist_next (list);
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if (psp->callback_name)
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{
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if (! procedural_db_lookup (psp->context->gimp, psp->callback_name))
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pattern_select_response (NULL, GTK_RESPONSE_CLOSE, psp);
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}
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}
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}
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/* private functions */
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static void
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pattern_select_change_callbacks (PatternSelect *psp,
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gboolean closing)
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{
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ProcRecord *proc;
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GimpPattern *pattern;
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static gboolean busy = FALSE;
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if (! (psp && psp->callback_name) || busy)
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return;
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busy = TRUE;
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pattern = gimp_context_get_pattern (psp->context);
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/* If its still registered run it */
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proc = procedural_db_lookup (psp->context->gimp, psp->callback_name);
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if (proc && pattern)
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{
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Argument *return_vals;
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gint nreturn_vals;
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return_vals =
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procedural_db_run_proc (psp->context->gimp,
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psp->context,
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psp->callback_name,
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&nreturn_vals,
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GIMP_PDB_STRING, GIMP_OBJECT (pattern)->name,
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GIMP_PDB_INT32, pattern->mask->width,
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GIMP_PDB_INT32, pattern->mask->height,
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GIMP_PDB_INT32, pattern->mask->bytes,
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GIMP_PDB_INT32, (pattern->mask->bytes *
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pattern->mask->height *
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pattern->mask->width),
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GIMP_PDB_INT8ARRAY, temp_buf_data (pattern->mask),
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GIMP_PDB_INT32, closing,
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GIMP_PDB_END);
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if (!return_vals || return_vals[0].value.pdb_int != GIMP_PDB_SUCCESS)
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g_message (_("Unable to run pattern callback. "
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"The corresponding plug-in may have crashed."));
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if (return_vals)
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procedural_db_destroy_args (return_vals, nreturn_vals);
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}
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busy = FALSE;
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}
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static void
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pattern_select_pattern_changed (GimpContext *context,
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GimpPattern *pattern,
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PatternSelect *psp)
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{
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if (pattern)
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pattern_select_change_callbacks (psp, FALSE);
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}
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static void
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pattern_select_response (GtkWidget *widget,
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gint response_id,
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PatternSelect *psp)
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{
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pattern_select_change_callbacks (psp, TRUE);
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pattern_select_free (psp);
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}
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