PIKApp/app/tools/pikagegltool.c

303 lines
9.1 KiB
C

/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* 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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gegl-plugin.h>
#include <gtk/gtk.h>
#include "libpikacolor/pikacolor.h"
#include "libpikaconfig/pikaconfig.h"
#include "libpikawidgets/pikawidgets.h"
#include "tools-types.h"
#include "gegl/pika-gegl-utils.h"
#include "core/pika.h"
#include "core/pikatoolinfo.h"
#include "widgets/pikahelp-ids.h"
#include "widgets/pikapropwidgets.h"
#include "pikafilteroptions.h"
#include "pikagegltool.h"
#include "pika-intl.h"
enum
{
COLUMN_NAME,
COLUMN_LABEL,
COLUMN_ICON_NAME,
N_COLUMNS
};
/* local function prototypes */
static void pika_gegl_tool_control (PikaTool *tool,
PikaToolAction action,
PikaDisplay *display);
static void pika_gegl_tool_dialog (PikaFilterTool *filter_tool);
static void pika_gegl_tool_halt (PikaGeglTool *gegl_tool);
static void pika_gegl_tool_operation_changed (GtkWidget *widget,
PikaGeglTool *gegl_tool);
G_DEFINE_TYPE (PikaGeglTool, pika_gegl_tool, PIKA_TYPE_OPERATION_TOOL)
#define parent_class pika_gegl_tool_parent_class
void
pika_gegl_tool_register (PikaToolRegisterCallback callback,
gpointer data)
{
(* callback) (PIKA_TYPE_GEGL_TOOL,
PIKA_TYPE_FILTER_OPTIONS,
pika_color_options_gui,
0,
"pika-gegl-tool",
_("GEGL Operation"),
_("Run an arbitrary GEGL operation"),
N_("_GEGL Operation..."), NULL,
NULL, PIKA_HELP_TOOL_GEGL,
PIKA_ICON_GEGL,
data);
}
static void
pika_gegl_tool_class_init (PikaGeglToolClass *klass)
{
PikaToolClass *tool_class = PIKA_TOOL_CLASS (klass);
PikaFilterToolClass *filter_tool_class = PIKA_FILTER_TOOL_CLASS (klass);
tool_class->control = pika_gegl_tool_control;
filter_tool_class->dialog = pika_gegl_tool_dialog;
}
static void
pika_gegl_tool_init (PikaGeglTool *tool)
{
}
static void
pika_gegl_tool_control (PikaTool *tool,
PikaToolAction action,
PikaDisplay *display)
{
PikaGeglTool *gegl_tool = PIKA_GEGL_TOOL (tool);
switch (action)
{
case PIKA_TOOL_ACTION_PAUSE:
case PIKA_TOOL_ACTION_RESUME:
break;
case PIKA_TOOL_ACTION_HALT:
pika_gegl_tool_halt (gegl_tool);
break;
case PIKA_TOOL_ACTION_COMMIT:
break;
}
PIKA_TOOL_CLASS (parent_class)->control (tool, action, display);
}
/*****************/
/* Gegl dialog */
/*****************/
static void
pika_gegl_tool_dialog (PikaFilterTool *filter_tool)
{
PikaGeglTool *tool = PIKA_GEGL_TOOL (filter_tool);
PikaOperationTool *o_tool = PIKA_OPERATION_TOOL (filter_tool);
GtkListStore *store;
GtkCellRenderer *cell;
GtkWidget *main_vbox;
GtkWidget *hbox;
GtkWidget *combo;
GtkWidget *options_gui;
GtkWidget *options_box;
GList *opclasses;
GList *iter;
PIKA_FILTER_TOOL_CLASS (parent_class)->dialog (filter_tool);
options_box = g_weak_ref_get (&o_tool->options_box_ref);
g_return_if_fail (options_box);
main_vbox = pika_filter_tool_dialog_get_vbox (filter_tool);
/* The operation combo box */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
gtk_box_reorder_child (GTK_BOX (main_vbox), hbox, 0);
gtk_widget_show (hbox);
store = gtk_list_store_new (N_COLUMNS,
G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
opclasses = pika_gegl_get_op_classes ();
for (iter = opclasses; iter; iter = iter->next)
{
GeglOperationClass *opclass = GEGL_OPERATION_CLASS (iter->data);
const gchar *icon_name = NULL;
const gchar *op_name = opclass->name;
const gchar *title;
gchar *label;
if (g_str_has_prefix (opclass->name, "gegl:"))
icon_name = PIKA_ICON_GEGL;
if (g_str_has_prefix (op_name, "gegl:"))
op_name += strlen ("gegl:");
title = gegl_operation_class_get_key (opclass, "title");
if (title)
label = g_strdup_printf ("%s (%s)", title, op_name);
else
label = g_strdup (op_name);
gtk_list_store_insert_with_values (store, NULL, -1,
COLUMN_NAME, opclass->name,
COLUMN_LABEL, label,
COLUMN_ICON_NAME, icon_name,
-1);
g_free (label);
}
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,
"icon-name", COLUMN_ICON_NAME);
cell = gtk_cell_renderer_text_new ();
g_object_set (cell,
"ellipsize", PANGO_ELLIPSIZE_MIDDLE,
NULL);
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 (pika_gegl_tool_operation_changed),
tool);
tool->operation_combo = combo;
tool->description_label = gtk_label_new ("");
gtk_label_set_line_wrap (GTK_LABEL (tool->description_label), TRUE);
gtk_label_set_xalign (GTK_LABEL (tool->description_label), 0.0);
gtk_box_pack_start (GTK_BOX (main_vbox), tool->description_label,
FALSE, FALSE, 0);
gtk_box_reorder_child (GTK_BOX (main_vbox), tool->description_label, 1);
/* The options vbox */
options_gui = gtk_label_new (_("Select an operation from the list above"));
pika_label_set_attributes (GTK_LABEL (options_gui),
PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
-1);
g_object_set (options_gui,
"margin-top", 4,
"margin-bottom", 4,
NULL);
gtk_container_add (GTK_CONTAINER (options_box), options_gui);
g_object_unref (options_box);
g_weak_ref_set (&o_tool->options_gui_ref, options_gui);
gtk_widget_show (options_gui);
}
static void
pika_gegl_tool_halt (PikaGeglTool *gegl_tool)
{
PikaOperationTool *op_tool = PIKA_OPERATION_TOOL (gegl_tool);
pika_operation_tool_set_operation (op_tool, NULL,
NULL, NULL, NULL, NULL, NULL);
}
static void
pika_gegl_tool_operation_changed (GtkWidget *widget,
PikaGeglTool *tool)
{
GtkTreeModel *model;
GtkTreeIter iter;
gchar *operation;
if (! gtk_combo_box_get_active_iter (GTK_COMBO_BOX (widget), &iter))
return;
model = gtk_combo_box_get_model (GTK_COMBO_BOX (widget));
gtk_tree_model_get (model, &iter,
COLUMN_NAME, &operation,
-1);
if (operation)
{
const gchar *description;
description = gegl_operation_get_key (operation, "description");
if (description)
{
gtk_label_set_text (GTK_LABEL (tool->description_label), description);
gtk_widget_show (tool->description_label);
}
else
{
gtk_widget_hide (tool->description_label);
}
pika_operation_tool_set_operation (PIKA_OPERATION_TOOL (tool),
operation,
_("GEGL Operation"),
_("GEGL Operation"),
NULL,
PIKA_ICON_GEGL,
PIKA_HELP_TOOL_GEGL);
g_free (operation);
}
}