PIKApp/libpikawidgets/pikawidgets-private.c

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2023-09-26 00:35:21 +02:00
/* LIBPIKA - The PIKA Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* pikawidgets-private.c
* Copyright (C) 2003 Sven Neumann <sven@gimp.org>
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <babl/babl.h>
#include <gtk/gtk.h>
#include "libpikabase/pikabase.h"
#include "pikawidgetstypes.h"
#include "pikaicons.h"
#include "pikawidgets-private.h"
#include "libpika/libpika-intl.h"
static gboolean pika_widgets_initialized = FALSE;
PikaHelpFunc _pika_standard_help_func = NULL;
PikaGetColorFunc _pika_get_foreground_func = NULL;
PikaGetColorFunc _pika_get_background_func = NULL;
PikaEnsureModulesFunc _pika_ensure_modules_func = NULL;
static void
pika_widgets_init_foreign_enums (void)
{
static const PikaEnumDesc input_mode_descs[] =
{
{ GDK_MODE_DISABLED, NC_("input-mode", "Disabled"), NULL },
{ GDK_MODE_SCREEN, NC_("input-mode", "Screen"), NULL },
{ GDK_MODE_WINDOW, NC_("input-mode", "Window"), NULL },
{ 0, NULL, NULL }
};
pika_type_set_translation_domain (GDK_TYPE_INPUT_MODE,
GETTEXT_PACKAGE "-libpika");
pika_type_set_translation_context (GDK_TYPE_INPUT_MODE, "input-mode");
pika_enum_set_value_descriptions (GDK_TYPE_INPUT_MODE, input_mode_descs);
}
void
pika_widgets_init (PikaHelpFunc standard_help_func,
PikaGetColorFunc get_foreground_func,
PikaGetColorFunc get_background_func,
PikaEnsureModulesFunc ensure_modules_func,
const gchar *test_base_dir)
{
GList *icons = NULL;
const gchar *cat_dir;
gchar *base_dir;
gchar *path;
GdkPixbuf *pixbuf;
GError *error = NULL;
g_return_if_fail (standard_help_func != NULL);
if (pika_widgets_initialized)
g_error ("pika_widgets_init() must only be called once!");
_pika_standard_help_func = standard_help_func;
_pika_get_foreground_func = get_foreground_func;
_pika_get_background_func = get_background_func;
_pika_ensure_modules_func = ensure_modules_func;
babl_init (); /* color selectors use babl */
pika_icons_init ();
if (test_base_dir)
{
cat_dir = "";
base_dir = g_build_filename (test_base_dir, "desktop", NULL);
}
else
{
cat_dir = "apps";
#ifdef ENABLE_RELOCATABLE_RESOURCES
base_dir = g_build_filename (pika_installation_directory (), "share", "icons", "hicolor", NULL);
#else
base_dir = g_build_filename (DATAROOTDIR, "icons", "hicolor", NULL);
#endif
}
/* Loading the application icons. Unfortunately GTK doesn't know how
* to load any size from a single SVG, so we have to generate common
* sizes ourselves.
* To be fair, it could with gtk_window_set_default_icon_name() but
* then the application icon is dependant to the theme and for now at
* least, we want the installed icon.
*/
path = g_build_filename (base_dir, "16x16", cat_dir, "pika.png", NULL);
pixbuf = gdk_pixbuf_new_from_file (path, &error);
if (pixbuf)
icons = g_list_prepend (icons, pixbuf);
else
g_printerr ("Application icon missing: %s (%s)\n", path, error->message);
g_clear_error (&error);
g_free (path);
path = g_build_filename (base_dir, "32x32", cat_dir, "pika.png", NULL);
pixbuf = gdk_pixbuf_new_from_file (path, &error);
if (pixbuf)
icons = g_list_prepend (icons, pixbuf);
else
g_printerr ("Application icon missing: %s (%s)\n", path, error->message);
g_clear_error (&error);
g_free (path);
path = g_build_filename (base_dir, "48x48", cat_dir, "pika.png", NULL);
pixbuf = gdk_pixbuf_new_from_file (path, &error);
if (pixbuf)
icons = g_list_prepend (icons, pixbuf);
else
g_printerr ("Application icon missing: %s (%s)\n", path, error->message);
g_clear_error (&error);
g_free (path);
path = g_build_filename (base_dir, "64x64", cat_dir, "pika.png", NULL);
pixbuf = gdk_pixbuf_new_from_file (path, &error);
if (pixbuf)
icons = g_list_prepend (icons, pixbuf);
else
g_printerr ("Application icon missing: %s (%s)\n", path, error->message);
g_clear_error (&error);
g_free (path);
path = g_build_filename (base_dir, "scalable", cat_dir, "pika.svg", NULL);
pixbuf = gdk_pixbuf_new_from_file_at_size (path, 128, 128, &error);
if (pixbuf)
{
/* Various common sizes from the same SVG. Why I go into such
* exhaustive list of sizes is that nowadays desktops/OSes use
* quite big icon sizes and in some cases, when they don't find
* the right one, GTK may render quite ugly resized/skewed image.
*/
icons = g_list_prepend (icons, pixbuf);
pixbuf = gdk_pixbuf_new_from_file_at_size (path, 144, 144, NULL);
icons = g_list_prepend (icons, pixbuf);
pixbuf = gdk_pixbuf_new_from_file_at_size (path, 160, 160, NULL);
icons = g_list_prepend (icons, pixbuf);
pixbuf = gdk_pixbuf_new_from_file_at_size (path, 176, 176, NULL);
icons = g_list_prepend (icons, pixbuf);
pixbuf = gdk_pixbuf_new_from_file_at_size (path, 192, 192, NULL);
icons = g_list_prepend (icons, pixbuf);
pixbuf = gdk_pixbuf_new_from_file_at_size (path, 224, 224, NULL);
icons = g_list_prepend (icons, pixbuf);
}
else
{
g_printerr ("Application icon missing: %s (%s)\n", path, error->message);
g_clear_error (&error);
}
g_free (path);
path = g_build_filename (base_dir, "256x256", cat_dir, "pika.png", NULL);
pixbuf = gdk_pixbuf_new_from_file (path, &error);
if (pixbuf)
icons = g_list_prepend (icons, pixbuf);
else
g_printerr ("Application icon missing: %s\n", path);
g_free (path);
gtk_window_set_default_icon_list (icons);
g_list_free_full (icons, g_object_unref);
pika_widgets_init_foreign_enums ();
pika_widgets_initialized = TRUE;
g_free (base_dir);
}
/**
* pika_widget_set_identifier:
* @widget:
* @identifier:
*
* Set an identifier which can be used by the various pika_blink_*()
* API. As a default, property widget will use the synced property name
* as widget identifier. You can always use this function to override a
* given widget identifier with a more specific name.
*
* Note that when a widget is bound to a property, in other words when
* in one of our propwidgets API, you should rather use
* pika_widget_set_bound_property() because it allows more easily to
* tweak values.
* pika_widget_set_identifier() is more destined to random widgets which
* you just want to be able to blink.
*
* It's doesn't need to be in public API because it is only used for
* internal blinking ability in core PIKA GUI.
*/
void
pika_widget_set_identifier (GtkWidget *widget,
const gchar *identifier)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
g_object_set_data_full (G_OBJECT (widget),
"pika-widget-identifier",
g_strdup (identifier),
(GDestroyNotify) g_free);
}
/**
* pika_widget_set_bound_property:
* @widget:
* @config:
* @property_name:
*
* This is similar to pika_widget_set_identifier() because the
* property_name can be used as identifier by our blink API.
* You can still set explicitly (and additionally)
* pika_widget_set_identifier() for rare cases where 2 widgets in a same
* container would bind the same property (or 2 properties named the
* same way for 2 different config objects). The identifier will be used
* in priority to the property name (which can still be used for
* changing the widget value, so it remains important to also set it).
*
* It's doesn't need to be in public API because it is only used for
* internal blinking ability in core PIKA GUI.
*/
void
pika_widget_set_bound_property (GtkWidget *widget,
GObject *config,
const gchar *property_name)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
g_object_set_data_full (G_OBJECT (widget),
"pika-widget-property-name",
g_strdup (property_name),
(GDestroyNotify) g_free);
g_object_set_data_full (G_OBJECT (widget),
"pika-widget-property-config",
g_object_ref (config),
(GDestroyNotify) g_object_unref);
}
/* clean up babl (in particular, so that the fish cache is constructed) if the
* compiler supports destructors
*/
#ifdef HAVE_FUNC_ATTRIBUTE_DESTRUCTOR
__attribute__ ((destructor))
static void
pika_widgets_exit (void)
{
if (pika_widgets_initialized)
babl_exit ();
}
#elif defined (__GNUC__)
#warning babl_init() not paired with babl_exit()
#endif