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gimp/app/tools/gimpgegltool.c

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/* GIMP - The GNU 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gegl-plugin.h>
#include <gtk/gtk.h>
#include "libgimpcolor/gimpcolor.h"
#include "libgimpconfig/gimpconfig.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "core/gimpdrawable.h"
#include "core/gimperror.h"
#include "core/gimpimage.h"
#include "core/gimpimagemap.h"
#include "core/gimpparamspecs-duplicate.h"
#include "widgets/gimppropwidgets.h"
#include "display/gimpdisplay.h"
#include "gimpgegltool.h"
#include "gimpimagemapoptions.h"
#include "gimp-intl.h"
enum
{
COLUMN_NAME,
COLUMN_LABEL,
COLUMN_STOCK_ID,
N_COLUMNS
};
/* local function prototypes */
static void gimp_gegl_tool_finalize (GObject *object);
static gboolean gimp_gegl_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error);
static GeglNode * gimp_gegl_tool_get_operation (GimpImageMapTool *im_tool,
GObject **config);
static void gimp_gegl_tool_map (GimpImageMapTool *im_tool);
static void gimp_gegl_tool_dialog (GimpImageMapTool *im_tool);
static void gimp_gegl_tool_reset (GimpImageMapTool *im_tool);
static void gimp_gegl_tool_config_notify (GObject *object,
GParamSpec *pspec,
GimpGeglTool *tool);
static void gimp_gegl_tool_operation_changed (GtkWidget *widget,
GimpGeglTool *tool);
G_DEFINE_TYPE (GimpGeglTool, gimp_gegl_tool, GIMP_TYPE_IMAGE_MAP_TOOL)
#define parent_class gimp_gegl_tool_parent_class
void
gimp_gegl_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_GEGL_TOOL,
GIMP_TYPE_IMAGE_MAP_OPTIONS, NULL,
0,
"gimp-gegl-tool",
_("GEGL Operation"),
_("GEGL Tool: Use an arbitrary GEGL operation"),
N_("_GEGL Operation..."), NULL,
NULL, "foo", /* GIMP_HELP_TOOL_GEGL, */
GIMP_STOCK_GEGL,
data);
}
static void
gimp_gegl_tool_class_init (GimpGeglToolClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpImageMapToolClass *im_tool_class = GIMP_IMAGE_MAP_TOOL_CLASS (klass);
object_class->finalize = gimp_gegl_tool_finalize;
tool_class->initialize = gimp_gegl_tool_initialize;
im_tool_class->shell_desc = _("GEGL Operation");
im_tool_class->get_operation = gimp_gegl_tool_get_operation;
im_tool_class->map = gimp_gegl_tool_map;
im_tool_class->dialog = gimp_gegl_tool_dialog;
im_tool_class->reset = gimp_gegl_tool_reset;
}
static void
gimp_gegl_tool_init (GimpGeglTool *tool)
{
}
static void
gimp_gegl_tool_finalize (GObject *object)
{
GimpGeglTool *tool = GIMP_GEGL_TOOL (object);
if (tool->operation)
{
g_free (tool->operation);
tool->operation = NULL;
}
if (tool->config)
{
g_object_unref (tool->config);
tool->config = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gimp_gegl_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error)
{
GimpGeglTool *g_tool = GIMP_GEGL_TOOL (tool);
GimpDrawable *drawable = gimp_image_get_active_drawable (display->image);
if (! drawable)
return FALSE;
if (gimp_drawable_is_indexed (drawable))
{
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("GEGL operations do not operate on indexed layers."));
return FALSE;
}
if (g_tool->config)
gimp_config_reset (GIMP_CONFIG (g_tool->config));
GIMP_TOOL_CLASS (parent_class)->initialize (tool, display, error);
return TRUE;
}
static GeglNode *
gimp_gegl_tool_get_operation (GimpImageMapTool *im_tool,
GObject **config)
{
return g_object_new (GEGL_TYPE_NODE, NULL);
}
static void
gimp_gegl_tool_map (GimpImageMapTool *image_map_tool)
{
GimpGeglTool *tool = GIMP_GEGL_TOOL (image_map_tool);
GParamSpec **pspecs;
guint n_pspecs;
gint i;
if (! tool->config)
return;
pspecs = gegl_list_properties (tool->operation, &n_pspecs);
for (i = 0; i < n_pspecs; i++)
{
GParamSpec *gegl_pspec = pspecs[i];
GParamSpec *gimp_pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (tool->config),
gegl_pspec->name);
if (gimp_pspec)
{
GValue value = { 0, };
g_value_init (&value, gimp_pspec->value_type);
g_object_get_property (G_OBJECT (tool->config), gimp_pspec->name,
&value);
if (GIMP_IS_PARAM_SPEC_RGB (gimp_pspec))
{
GeglColor *gegl_color = gegl_color_new (NULL);
GimpRGB gimp_color;
gimp_value_get_rgb (&value, &gimp_color);
g_value_unset (&value);
gegl_color_set_rgba (gegl_color,
gimp_color.r,
gimp_color.g,
gimp_color.b,
gimp_color.a);
g_value_init (&value, gegl_pspec->value_type);
g_value_take_object (&value, gegl_color);
}
gegl_node_set_property (image_map_tool->operation, gegl_pspec->name,
&value);
g_value_unset (&value);
}
}
g_free (pspecs);
}
static gboolean
gimp_gegl_tool_operation_blacklisted (const gchar *name)
{
static const gchar * const blacklist[] =
{
"gegl:convert-format", "gegl:text", "gegl:introspect", "gimp-"
};
gint i;
for (i = 0; i < G_N_ELEMENTS (blacklist); i++)
{
if (g_str_has_prefix (name, blacklist[i]))
return TRUE;
}
return FALSE;
}
/* Builds a GList of the class structures of all subtypes of type.
*/
static GList *
gimp_get_subtype_classes (GType type,
GList *classes)
{
GeglOperationClass *klass;
GType *ops;
guint n_ops;
gint i;
if (! type)
return classes;
klass = GEGL_OPERATION_CLASS (g_type_class_ref (type));
ops = g_type_children (type, &n_ops);
/* only add classes which have a name, this avoids
* the abstract base classes
*/
if (klass->name)
{
if (! gimp_gegl_tool_operation_blacklisted (klass->name))
classes = g_list_prepend (classes, klass);
}
for (i = 0; i < n_ops; i++)
classes = gimp_get_subtype_classes (ops[i], classes);
if (ops)
g_free (ops);
return classes;
}
static gint
gimp_gegl_tool_compare_operation_names (GeglOperationClass *a,
GeglOperationClass *b)
{
return strcmp (a->name, b->name);
}
static GList *
gimp_get_geglopclasses (void)
{
GList *opclasses;
opclasses = gimp_get_subtype_classes (GEGL_TYPE_OPERATION, NULL);
opclasses = g_list_sort (opclasses,
(GCompareFunc)
gimp_gegl_tool_compare_operation_names);
return opclasses;
}
/*****************/
/* Gegl dialog */
/*****************/
static void
gimp_gegl_tool_dialog (GimpImageMapTool *image_map_tool)
{
GimpGeglTool *tool = GIMP_GEGL_TOOL (image_map_tool);
GtkListStore *store;
GtkCellRenderer *cell;
GtkWidget *main_vbox;
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *combo;
GList *opclasses;
GList *iter;
main_vbox = gimp_image_map_tool_dialog_get_vbox (image_map_tool);
/* The operation combo box */
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("_Operation:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
store = gtk_list_store_new (N_COLUMNS,
G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
opclasses = gimp_get_geglopclasses ();
for (iter = opclasses; iter; iter = iter->next)
{
GeglOperationClass *opclass = GEGL_OPERATION_CLASS (iter->data);
if (strstr (opclass->categories, "color") ||
strstr (opclass->categories, "enhance") ||
strstr (opclass->categories, "misc") ||
strstr (opclass->categories, "blur") ||
strstr (opclass->categories, "edge") ||
strstr (opclass->categories, "render"))
{
const gchar *stock_id;
const gchar *label;
if (g_str_has_prefix (opclass->name, "gimp:"))
continue;
if (g_str_has_prefix (opclass->name, "gegl:"))
{
label = opclass->name + strlen ("gegl:");
stock_id = GIMP_STOCK_GEGL;
}
else
{
label = opclass->name;
stock_id = NULL;
}
gtk_list_store_insert_with_values (store, NULL, -1,
COLUMN_NAME, opclass->name,
COLUMN_LABEL, label,
COLUMN_STOCK_ID, stock_id,
-1);
}
}
g_list_free (opclasses);
combo = gtk_combo_box_new_with_model (GTK_TREE_MODEL (store));
g_object_unref (store);
gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
gtk_widget_show (combo);
cell = gtk_cell_renderer_pixbuf_new ();
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo), cell, FALSE);
gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (combo), cell,
"stock-id", COLUMN_STOCK_ID);
cell = gtk_cell_renderer_text_new ();
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo), cell, TRUE);
gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (combo), cell,
"text", COLUMN_LABEL);
g_signal_connect (combo, "changed",
G_CALLBACK (gimp_gegl_tool_operation_changed),
tool);
tool->operation_combo = combo;
gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
/* The options vbox */
tool->options_frame = gimp_frame_new (_("Operation Settings"));
gtk_box_pack_start (GTK_BOX (main_vbox), tool->options_frame,
FALSE, FALSE, 0);
gtk_widget_show (tool->options_frame);
tool->options_table = gtk_label_new ("Select an operation from the list above");
gimp_label_set_attributes (GTK_LABEL (tool->options_table),
PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
-1);
gtk_misc_set_padding (GTK_MISC (tool->options_table), 0, 4);
gtk_container_add (GTK_CONTAINER (tool->options_frame), tool->options_table);
gtk_widget_show (tool->options_table);
}
static void
gimp_gegl_tool_reset (GimpImageMapTool *image_map_tool)
{
GimpGeglTool *tool = GIMP_GEGL_TOOL (image_map_tool);
if (tool->config)
gimp_config_reset (GIMP_CONFIG (tool->config));
}
static void
gimp_gegl_tool_config_notify (GObject *object,
GParamSpec *pspec,
GimpGeglTool *tool)
{
gimp_image_map_tool_preview (GIMP_IMAGE_MAP_TOOL (tool));
}
static GValue *
gimp_gegl_tool_config_value_new (GParamSpec *pspec)
{
GValue *value = g_slice_new0 (GValue);
g_value_init (value, pspec->value_type);
return value;
}
static void
gimp_gegl_tool_config_value_free (GValue *value)
{
g_value_unset (value);
g_slice_free (GValue, value);
}
static GHashTable *
gimp_gegl_tool_config_get_properties (GObject *object)
{
GHashTable *properties = g_object_get_data (object, "properties");
if (! properties)
{
properties = g_hash_table_new_full (g_str_hash,
g_str_equal,
(GDestroyNotify) g_free,
(GDestroyNotify) gimp_gegl_tool_config_value_free);
g_object_set_data_full (object, "properties", properties,
(GDestroyNotify) g_hash_table_unref);
}
return properties;
}
static GValue *
gimp_gegl_tool_config_value_get (GObject *object,
GParamSpec *pspec)
{
GHashTable *properties = gimp_gegl_tool_config_get_properties (object);
GValue *value;
value = g_hash_table_lookup (properties, pspec->name);
if (! value)
{
value = gimp_gegl_tool_config_value_new (pspec);
g_hash_table_insert (properties, g_strdup (pspec->name), value);
}
return value;
}
static void
gimp_gegl_tool_config_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GValue *val = gimp_gegl_tool_config_value_get (object, pspec);
g_value_copy (value, val);
}
static void
gimp_gegl_tool_config_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GValue *val = gimp_gegl_tool_config_value_get (object, pspec);
g_value_copy (val, value);
}
static void
gimp_gegl_tool_config_class_init (GObjectClass *klass,
const gchar *operation)
{
GParamSpec **pspecs;
guint n_pspecs;
gint i;
klass->set_property = gimp_gegl_tool_config_set_property;
klass->get_property = gimp_gegl_tool_config_get_property;
pspecs = gegl_list_properties (operation, &n_pspecs);
for (i = 0; i < n_pspecs; i++)
{
GParamSpec *pspec = pspecs[i];
if ((pspec->flags & G_PARAM_READABLE) &&
(pspec->flags & G_PARAM_WRITABLE) &&
strcmp (pspec->name, "input") &&
strcmp (pspec->name, "output"))
{
GParamSpec *copy = gimp_param_spec_duplicate (pspec);
if (copy)
{
g_object_class_install_property (klass, i + 1, copy);
}
}
}
g_free (pspecs);
}
static GimpObject *
gimp_gegl_tool_get_config (GimpGeglTool *tool)
{
static GHashTable *config_types = NULL;
GType config_type;
if (! config_types)
config_types = g_hash_table_new_full (g_str_hash,
g_str_equal,
(GDestroyNotify) g_free,
NULL);
config_type = (GType) g_hash_table_lookup (config_types, tool->operation);
if (! config_type)
{
GTypeInfo info =
{
sizeof (GimpObjectClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_gegl_tool_config_class_init,
NULL, /* class_finalize */
tool->operation,
sizeof (GimpObject),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
const GInterfaceInfo config_info =
{
NULL, /* interface_init */
NULL, /* interface_finalize */
NULL /* interface_data */
};
gchar *type_name = g_strdup_printf ("GimpGeglTool-%s-config",
tool->operation);
g_strcanon (type_name, G_CSET_DIGITS "-" G_CSET_a_2_z G_CSET_A_2_Z, '-');
config_type = g_type_register_static (GIMP_TYPE_OBJECT, type_name,
&info, 0);
g_free (type_name);
g_type_add_interface_static (config_type, GIMP_TYPE_CONFIG,
&config_info);
g_hash_table_insert (config_types,
g_strdup (tool->operation),
(gpointer) config_type);
}
return g_object_new (config_type, NULL);
}
static void
gimp_gegl_tool_operation_changed (GtkWidget *widget,
GimpGeglTool *tool)
{
GtkTreeModel *model;
GtkTreeIter iter;
if (! gtk_combo_box_get_active_iter (GTK_COMBO_BOX (widget), &iter))
return;
model = gtk_combo_box_get_model (GTK_COMBO_BOX (widget));
if (tool->operation)
{
g_free (tool->operation);
tool->operation = NULL;
}
if (tool->config)
{
g_object_unref (tool->config);
tool->config = NULL;
}
gtk_tree_model_get (model, &iter,
COLUMN_NAME, &tool->operation,
-1);
if (! tool->operation)
return;
if (GIMP_IMAGE_MAP_TOOL (tool)->image_map)
{
gimp_image_map_clear (GIMP_IMAGE_MAP_TOOL (tool)->image_map);
g_object_unref (GIMP_IMAGE_MAP_TOOL (tool)->image_map);
GIMP_IMAGE_MAP_TOOL (tool)->image_map = NULL;
}
gegl_node_set (GIMP_IMAGE_MAP_TOOL (tool)->operation,
"operation", tool->operation,
NULL);
gimp_image_map_tool_create_map (GIMP_IMAGE_MAP_TOOL (tool));
tool->config = gimp_gegl_tool_get_config (tool);
if (tool->options_table)
{
gtk_container_remove (GTK_CONTAINER (tool->options_frame),
tool->options_table);
tool->options_table = NULL;
}
if (tool->config)
{
g_signal_connect_object (tool->config, "notify",
G_CALLBACK (gimp_gegl_tool_config_notify),
G_OBJECT (tool), 0);
tool->options_table =
gimp_prop_table_new (G_OBJECT (tool->config),
G_TYPE_FROM_INSTANCE (tool->config),
GIMP_CONTEXT (GIMP_TOOL_GET_OPTIONS (tool)));
gtk_container_add (GTK_CONTAINER (tool->options_frame),
tool->options_table);
gtk_widget_show (tool->options_table);
}
gimp_image_map_tool_preview (GIMP_IMAGE_MAP_TOOL (tool));
}
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