xed/plugins/changecase/xed-changecase-plugin.c

449 lines
12 KiB
C

/*
* xed-changecase-plugin.c
*
* Copyright (C) 2004-2005 - Paolo Borelli
*
* 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, 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $Id$
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "xed-changecase-plugin.h"
#include <glib/gi18n.h>
#include <gmodule.h>
#include <xed/xed-window.h>
#include <xed/xed-window-activatable.h>
#include <xed/xed-debug.h>
static void xed_window_activatable_iface_init (XedWindowActivatableInterface *iface);
G_DEFINE_DYNAMIC_TYPE_EXTENDED (XedChangecasePlugin,
xed_changecase_plugin,
PEAS_TYPE_EXTENSION_BASE,
0,
G_IMPLEMENT_INTERFACE_DYNAMIC (XED_TYPE_WINDOW_ACTIVATABLE,
xed_window_activatable_iface_init))
struct _XedChangecasePluginPrivate
{
XedWindow *window;
GtkActionGroup *action_group;
guint ui_id;
};
enum
{
PROP_0,
PROP_WINDOW
};
typedef enum {
TO_UPPER_CASE,
TO_LOWER_CASE,
INVERT_CASE,
TO_TITLE_CASE,
} ChangeCaseChoice;
static void
do_upper_case (GtkTextBuffer *buffer,
GtkTextIter *start,
GtkTextIter *end)
{
GString *s = g_string_new (NULL);
while (!gtk_text_iter_is_end (start) && !gtk_text_iter_equal (start, end))
{
gunichar c, nc;
c = gtk_text_iter_get_char (start);
nc = g_unichar_toupper (c);
g_string_append_unichar (s, nc);
gtk_text_iter_forward_char (start);
}
gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
gtk_text_buffer_insert_at_cursor (buffer, s->str, s->len);
g_string_free (s, TRUE);
}
static void
do_lower_case (GtkTextBuffer *buffer,
GtkTextIter *start,
GtkTextIter *end)
{
GString *s = g_string_new (NULL);
while (!gtk_text_iter_is_end (start) && !gtk_text_iter_equal (start, end))
{
gunichar c, nc;
c = gtk_text_iter_get_char (start);
nc = g_unichar_tolower (c);
g_string_append_unichar (s, nc);
gtk_text_iter_forward_char (start);
}
gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
gtk_text_buffer_insert_at_cursor (buffer, s->str, s->len);
g_string_free (s, TRUE);
}
static void
do_invert_case (GtkTextBuffer *buffer,
GtkTextIter *start,
GtkTextIter *end)
{
GString *s = g_string_new (NULL);
while (!gtk_text_iter_is_end (start) && !gtk_text_iter_equal (start, end))
{
gunichar c, nc;
c = gtk_text_iter_get_char (start);
if (g_unichar_islower (c))
{
nc = g_unichar_toupper (c);
}
else
{
nc = g_unichar_tolower (c);
}
g_string_append_unichar (s, nc);
gtk_text_iter_forward_char (start);
}
gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
gtk_text_buffer_insert_at_cursor (buffer, s->str, s->len);
g_string_free (s, TRUE);
}
static void
do_title_case (GtkTextBuffer *buffer,
GtkTextIter *start,
GtkTextIter *end)
{
GString *s = g_string_new (NULL);
while (!gtk_text_iter_is_end (start) && !gtk_text_iter_equal (start, end))
{
gunichar c, nc;
c = gtk_text_iter_get_char (start);
if (gtk_text_iter_starts_word (start))
{
nc = g_unichar_totitle (c);
}
else
{
nc = g_unichar_tolower (c);
}
g_string_append_unichar (s, nc);
gtk_text_iter_forward_char (start);
}
gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
gtk_text_buffer_insert_at_cursor (buffer, s->str, s->len);
g_string_free (s, TRUE);
}
static void
change_case (XedWindow *window,
ChangeCaseChoice choice)
{
XedDocument *doc;
GtkTextIter start, end;
xed_debug (DEBUG_PLUGINS);
doc = xed_window_get_active_document (window);
g_return_if_fail (doc != NULL);
if (!gtk_text_buffer_get_selection_bounds (GTK_TEXT_BUFFER (doc), &start, &end))
{
return;
}
gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (doc));
switch (choice)
{
case TO_UPPER_CASE:
do_upper_case (GTK_TEXT_BUFFER (doc), &start, &end);
break;
case TO_LOWER_CASE:
do_lower_case (GTK_TEXT_BUFFER (doc), &start, &end);
break;
case INVERT_CASE:
do_invert_case (GTK_TEXT_BUFFER (doc), &start, &end);
break;
case TO_TITLE_CASE:
do_title_case (GTK_TEXT_BUFFER (doc), &start, &end);
break;
default:
g_return_if_reached ();
}
gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (doc));
}
static void
upper_case_cb (GtkAction *action,
XedWindow *window)
{
change_case (window, TO_UPPER_CASE);
}
static void
lower_case_cb (GtkAction *action,
XedWindow *window)
{
change_case (window, TO_LOWER_CASE);
}
static void
invert_case_cb (GtkAction *action,
XedWindow *window)
{
change_case (window, INVERT_CASE);
}
static void
title_case_cb (GtkAction *action,
XedWindow *window)
{
change_case (window, TO_TITLE_CASE);
}
static const GtkActionEntry action_entries[] =
{
{ "ChangeCase", NULL, N_("C_hange Case") },
{ "UpperCase", NULL, N_("All _Upper Case"), NULL,
N_("Change selected text to upper case"),
G_CALLBACK (upper_case_cb) },
{ "LowerCase", NULL, N_("All _Lower Case"), NULL,
N_("Change selected text to lower case"),
G_CALLBACK (lower_case_cb) },
{ "InvertCase", NULL, N_("_Invert Case"), NULL,
N_("Invert the case of selected text"),
G_CALLBACK (invert_case_cb) },
{ "TitleCase", NULL, N_("_Title Case"), NULL,
N_("Capitalize the first letter of each selected word"),
G_CALLBACK (title_case_cb) }
};
const gchar submenu[] =
"<ui>"
" <menubar name='MenuBar'>"
" <menu name='EditMenu' action='Edit'>"
" <placeholder name='EditOps_6'>"
" <menu action='ChangeCase'>"
" <menuitem action='UpperCase'/>"
" <menuitem action='LowerCase'/>"
" <menuitem action='InvertCase'/>"
" <menuitem action='TitleCase'/>"
" </menu>"
" </placeholder>"
" </menu>"
" </menubar>"
"</ui>";
static void
xed_changecase_plugin_init (XedChangecasePlugin *plugin)
{
xed_debug_message (DEBUG_PLUGINS, "XedChangecasePlugin initializing");
plugin->priv = G_TYPE_INSTANCE_GET_PRIVATE (plugin, XED_TYPE_CHANGECASE_PLUGIN, XedChangecasePluginPrivate);
}
static void
xed_changecase_plugin_dispose (GObject *object)
{
XedChangecasePlugin *plugin = XED_CHANGECASE_PLUGIN (object);
xed_debug_message (DEBUG_PLUGINS, "XedChangecasePlugin disposing");
g_clear_object (&plugin->priv->window);
g_clear_object (&plugin->priv->action_group);
G_OBJECT_CLASS (xed_changecase_plugin_parent_class)->dispose (object);
}
static void
xed_changecase_plugin_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
XedChangecasePlugin *plugin = XED_CHANGECASE_PLUGIN (object);
switch (prop_id)
{
case PROP_WINDOW:
plugin->priv->window = XED_WINDOW (g_value_dup_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
xed_changecase_plugin_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
XedChangecasePlugin *plugin = XED_CHANGECASE_PLUGIN (object);
switch (prop_id)
{
case PROP_WINDOW:
g_value_set_object (value, plugin->priv->window);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
update_ui (XedChangecasePlugin *plugin)
{
GtkTextView *view;
GtkAction *action;
gboolean sensitive = FALSE;
xed_debug (DEBUG_PLUGINS);
view = GTK_TEXT_VIEW (xed_window_get_active_view (plugin->priv->window));
if (view != NULL)
{
GtkTextBuffer *buffer;
buffer = gtk_text_view_get_buffer (view);
sensitive = (gtk_text_view_get_editable (view) && gtk_text_buffer_get_has_selection (buffer));
}
action = gtk_action_group_get_action (plugin->priv->action_group, "ChangeCase");
gtk_action_set_sensitive (action, sensitive);
}
static void
xed_changecase_plugin_activate (XedWindowActivatable *activatable)
{
XedChangecasePluginPrivate *priv;
GtkUIManager *manager;
GError *error = NULL;
xed_debug (DEBUG_PLUGINS);
priv = XED_CHANGECASE_PLUGIN (activatable)->priv;
manager = xed_window_get_ui_manager (priv->window);
priv->action_group = gtk_action_group_new ("XedChangecasePluginActions");
gtk_action_group_set_translation_domain (priv->action_group, GETTEXT_PACKAGE);
gtk_action_group_add_actions (priv->action_group, action_entries, G_N_ELEMENTS (action_entries), priv->window);
gtk_ui_manager_insert_action_group (manager, priv->action_group, -1);
priv->ui_id = gtk_ui_manager_add_ui_from_string (manager, submenu, -1, &error);
if (priv->ui_id == 0)
{
g_warning ("%s", error->message);
return;
}
update_ui (XED_CHANGECASE_PLUGIN (activatable));
}
static void
xed_changecase_plugin_deactivate (XedWindowActivatable *activatable)
{
XedChangecasePluginPrivate *priv;
GtkUIManager *manager;
xed_debug (DEBUG_PLUGINS);
priv = XED_CHANGECASE_PLUGIN (activatable)->priv;
manager = xed_window_get_ui_manager (priv->window);
gtk_ui_manager_remove_ui (manager, priv->ui_id);
gtk_ui_manager_remove_action_group (manager, priv->action_group);
}
static void
xed_changecase_plugin_update_state (XedWindowActivatable *activatable)
{
xed_debug (DEBUG_PLUGINS);
update_ui (XED_CHANGECASE_PLUGIN (activatable));
}
static void
xed_changecase_plugin_class_init (XedChangecasePluginClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = xed_changecase_plugin_dispose;
object_class->set_property = xed_changecase_plugin_set_property;
object_class->get_property = xed_changecase_plugin_get_property;
g_object_class_override_property (object_class, PROP_WINDOW, "window");
g_type_class_add_private (klass, sizeof (XedChangecasePluginPrivate));
}
static void
xed_changecase_plugin_class_finalize (XedChangecasePluginClass *klass)
{
/* dummy function - used by G_DEFINE_DYNAMIC_TYPE_EXTENDED */
}
static void
xed_window_activatable_iface_init (XedWindowActivatableInterface *iface)
{
iface->activate = xed_changecase_plugin_activate;
iface->deactivate = xed_changecase_plugin_deactivate;
iface->update_state = xed_changecase_plugin_update_state;
}
G_MODULE_EXPORT void
peas_register_types (PeasObjectModule *module)
{
xed_changecase_plugin_register_type (G_TYPE_MODULE (module));
peas_object_module_register_extension_type (module,
XED_TYPE_WINDOW_ACTIVATABLE,
XED_TYPE_CHANGECASE_PLUGIN);
}