mirror of https://github.com/GNOME/gimp.git
299 lines
7.9 KiB
C
299 lines
7.9 KiB
C
/* The GIMP -- an image manipulation program
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
* Copyright (C) 1998 Andy Thomas.
|
|
*
|
|
* 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 PURIGHTE. 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/gimpgradient.h"
|
|
|
|
#include "pdb/procedural_db.h"
|
|
|
|
#include "widgets/gimpcontainerview.h"
|
|
#include "widgets/gimpdatafactoryview.h"
|
|
#include "widgets/gimphelp-ids.h"
|
|
|
|
#include "dialogs-constructors.h"
|
|
#include "gradient-select.h"
|
|
#include "menus.h"
|
|
|
|
#include "gimp-intl.h"
|
|
|
|
|
|
/* local function prototypes */
|
|
|
|
static void gradient_select_change_callbacks (GradientSelect *gsp,
|
|
gboolean closing);
|
|
static void gradient_select_gradient_changed (GimpContext *context,
|
|
GimpGradient *gradient,
|
|
GradientSelect *gsp);
|
|
static void gradient_select_response (GtkWidget *widget,
|
|
gint response_id,
|
|
GradientSelect *gsp);
|
|
|
|
|
|
/* list of active dialogs */
|
|
static GSList *gradient_active_dialogs = NULL;
|
|
|
|
|
|
/* public functions */
|
|
|
|
GradientSelect *
|
|
gradient_select_new (Gimp *gimp,
|
|
const gchar *title,
|
|
const gchar *initial_gradient,
|
|
const gchar *callback_name,
|
|
gint sample_size)
|
|
{
|
|
GradientSelect *gsp;
|
|
GimpGradient *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->gradient_factory, FALSE);
|
|
|
|
first_call = FALSE;
|
|
}
|
|
|
|
if (initial_gradient && strlen (initial_gradient))
|
|
{
|
|
active = (GimpGradient *)
|
|
gimp_container_get_child_by_name (gimp->gradient_factory->container,
|
|
initial_gradient);
|
|
}
|
|
|
|
if (! active)
|
|
active = gimp_context_get_gradient (gimp_get_current_context (gimp));
|
|
|
|
if (! active)
|
|
return NULL;
|
|
|
|
gsp = g_new0 (GradientSelect, 1);
|
|
|
|
/* Add to active gradient dialogs list */
|
|
gradient_active_dialogs = g_slist_append (gradient_active_dialogs, gsp);
|
|
|
|
gsp->context = gimp_context_new (gimp, title, NULL);
|
|
gsp->callback_name = g_strdup (callback_name);
|
|
gsp->sample_size = sample_size;
|
|
|
|
gimp_context_set_gradient (gsp->context, active);
|
|
|
|
g_signal_connect (gsp->context, "gradient_changed",
|
|
G_CALLBACK (gradient_select_gradient_changed),
|
|
gsp);
|
|
|
|
/* the shell */
|
|
gsp->shell = gimp_dialog_new (title, "gradient_selection",
|
|
NULL, 0,
|
|
gimp_standard_help_func,
|
|
GIMP_HELP_GRADIENT_DIALOG,
|
|
|
|
GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
|
|
|
|
NULL);
|
|
|
|
g_signal_connect (gsp->shell, "response",
|
|
G_CALLBACK (gradient_select_response),
|
|
gsp);
|
|
|
|
/* the gradient list */
|
|
gsp->view = gimp_data_factory_view_new (GIMP_VIEW_TYPE_LIST,
|
|
gimp->gradient_factory,
|
|
dialogs_edit_gradient_func,
|
|
gsp->context,
|
|
GIMP_PREVIEW_SIZE_MEDIUM, 1,
|
|
global_menu_factory, "<Gradients>");
|
|
|
|
gimp_container_view_set_size_request (GIMP_CONTAINER_VIEW (GIMP_CONTAINER_EDITOR (gsp->view)->view),
|
|
6 * (GIMP_PREVIEW_SIZE_MEDIUM + 2),
|
|
6 * (GIMP_PREVIEW_SIZE_MEDIUM + 2));
|
|
|
|
gtk_container_set_border_width (GTK_CONTAINER (gsp->view), 6);
|
|
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (gsp->shell)->vbox), gsp->view);
|
|
gtk_widget_show (gsp->view);
|
|
|
|
gtk_widget_show (gsp->shell);
|
|
|
|
return gsp;
|
|
}
|
|
|
|
void
|
|
gradient_select_free (GradientSelect *gsp)
|
|
{
|
|
g_return_if_fail (gsp != NULL);
|
|
|
|
gtk_widget_destroy (gsp->shell);
|
|
|
|
/* remove from active list */
|
|
gradient_active_dialogs = g_slist_remove (gradient_active_dialogs, gsp);
|
|
|
|
if (gsp->callback_name)
|
|
g_free (gsp->callback_name);
|
|
|
|
if (gsp->context)
|
|
g_object_unref (gsp->context);
|
|
|
|
g_free (gsp);
|
|
}
|
|
|
|
GradientSelect *
|
|
gradient_select_get_by_callback (const gchar *callback_name)
|
|
{
|
|
GSList *list;
|
|
GradientSelect *gsp;
|
|
|
|
for (list = gradient_active_dialogs; list; list = g_slist_next (list))
|
|
{
|
|
gsp = (GradientSelect *) list->data;
|
|
|
|
if (gsp->callback_name && ! strcmp (callback_name, gsp->callback_name))
|
|
return gsp;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
gradient_select_dialogs_check (void)
|
|
{
|
|
GradientSelect *gsp;
|
|
GSList *list;
|
|
|
|
list = gradient_active_dialogs;
|
|
|
|
while (list)
|
|
{
|
|
gsp = (GradientSelect *) list->data;
|
|
|
|
list = g_slist_next (list);
|
|
|
|
if (gsp->callback_name)
|
|
{
|
|
if (! procedural_db_lookup (gsp->context->gimp, gsp->callback_name))
|
|
gradient_select_response (NULL, GTK_RESPONSE_CLOSE, gsp);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* private functions */
|
|
|
|
static void
|
|
gradient_select_change_callbacks (GradientSelect *gsp,
|
|
gboolean closing)
|
|
{
|
|
ProcRecord *proc = NULL;
|
|
GimpGradient *gradient;
|
|
|
|
static gboolean busy = FALSE;
|
|
|
|
if (! (gsp && gsp->callback_name) || busy)
|
|
return;
|
|
|
|
busy = TRUE;
|
|
|
|
gradient = gimp_context_get_gradient (gsp->context);
|
|
|
|
/* If its still registered run it */
|
|
proc = procedural_db_lookup (gsp->context->gimp, gsp->callback_name);
|
|
|
|
if (proc && gradient)
|
|
{
|
|
Argument *return_vals;
|
|
gint nreturn_vals;
|
|
gdouble *values, *pv;
|
|
double pos, delta;
|
|
GimpRGB color;
|
|
gint i;
|
|
|
|
i = gsp->sample_size;
|
|
pos = 0.0;
|
|
delta = 1.0 / (i - 1);
|
|
|
|
values = g_new (gdouble, 4 * i);
|
|
pv = values;
|
|
|
|
while (i--)
|
|
{
|
|
gimp_gradient_get_color_at (gradient, pos, FALSE, &color);
|
|
|
|
*pv++ = color.r;
|
|
*pv++ = color.g;
|
|
*pv++ = color.b;
|
|
*pv++ = color.a;
|
|
|
|
pos += delta;
|
|
}
|
|
|
|
return_vals =
|
|
procedural_db_run_proc (gsp->context->gimp,
|
|
gsp->callback_name,
|
|
&nreturn_vals,
|
|
GIMP_PDB_STRING, GIMP_OBJECT (gradient)->name,
|
|
GIMP_PDB_INT32, gsp->sample_size * 4,
|
|
GIMP_PDB_FLOATARRAY, values,
|
|
GIMP_PDB_INT32, (gint) closing,
|
|
GIMP_PDB_END);
|
|
|
|
if (!return_vals || return_vals[0].value.pdb_int != GIMP_PDB_SUCCESS)
|
|
g_message (_("Unable to run gradient callback. "
|
|
"The corresponding plug-in may have crashed."));
|
|
|
|
if (return_vals)
|
|
procedural_db_destroy_args (return_vals, nreturn_vals);
|
|
}
|
|
|
|
busy = FALSE;
|
|
}
|
|
|
|
static void
|
|
gradient_select_gradient_changed (GimpContext *context,
|
|
GimpGradient *gradient,
|
|
GradientSelect *gsp)
|
|
{
|
|
if (gradient)
|
|
gradient_select_change_callbacks (gsp, FALSE);
|
|
}
|
|
|
|
static void
|
|
gradient_select_response (GtkWidget *widget,
|
|
gint response_id,
|
|
GradientSelect *gsp)
|
|
{
|
|
gradient_select_change_callbacks (gsp, TRUE);
|
|
gradient_select_free (gsp);
|
|
}
|