396 lines
9.0 KiB
C
396 lines
9.0 KiB
C
/*
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* xed-changecase-plugin.c
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*
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* Copyright (C) 2004-2005 - Paolo Borelli
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $Id$
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "xed-changecase-plugin.h"
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#include <glib/gi18n-lib.h>
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#include <gmodule.h>
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#include <xed/xed-debug.h>
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#define WINDOW_DATA_KEY "XedChangecasePluginWindowData"
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XED_PLUGIN_REGISTER_TYPE(XedChangecasePlugin, xed_changecase_plugin)
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typedef enum {
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TO_UPPER_CASE,
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TO_LOWER_CASE,
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INVERT_CASE,
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TO_TITLE_CASE,
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} ChangeCaseChoice;
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static void
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do_upper_case (GtkTextBuffer *buffer,
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GtkTextIter *start,
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GtkTextIter *end)
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{
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GString *s = g_string_new (NULL);
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while (!gtk_text_iter_is_end (start) &&
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!gtk_text_iter_equal (start, end))
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{
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gunichar c, nc;
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c = gtk_text_iter_get_char (start);
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nc = g_unichar_toupper (c);
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g_string_append_unichar (s, nc);
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gtk_text_iter_forward_char (start);
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}
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gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
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gtk_text_buffer_insert_at_cursor (buffer, s->str, s->len);
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g_string_free (s, TRUE);
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}
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static void
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do_lower_case (GtkTextBuffer *buffer,
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GtkTextIter *start,
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GtkTextIter *end)
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{
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GString *s = g_string_new (NULL);
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while (!gtk_text_iter_is_end (start) &&
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!gtk_text_iter_equal (start, end))
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{
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gunichar c, nc;
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c = gtk_text_iter_get_char (start);
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nc = g_unichar_tolower (c);
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g_string_append_unichar (s, nc);
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gtk_text_iter_forward_char (start);
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}
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gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
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gtk_text_buffer_insert_at_cursor (buffer, s->str, s->len);
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g_string_free (s, TRUE);
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}
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static void
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do_invert_case (GtkTextBuffer *buffer,
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GtkTextIter *start,
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GtkTextIter *end)
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{
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GString *s = g_string_new (NULL);
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while (!gtk_text_iter_is_end (start) &&
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!gtk_text_iter_equal (start, end))
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{
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gunichar c, nc;
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c = gtk_text_iter_get_char (start);
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if (g_unichar_islower (c))
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nc = g_unichar_toupper (c);
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else
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nc = g_unichar_tolower (c);
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g_string_append_unichar (s, nc);
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gtk_text_iter_forward_char (start);
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}
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gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
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gtk_text_buffer_insert_at_cursor (buffer, s->str, s->len);
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g_string_free (s, TRUE);
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}
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static void
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do_title_case (GtkTextBuffer *buffer,
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GtkTextIter *start,
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GtkTextIter *end)
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{
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GString *s = g_string_new (NULL);
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while (!gtk_text_iter_is_end (start) &&
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!gtk_text_iter_equal (start, end))
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{
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gunichar c, nc;
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c = gtk_text_iter_get_char (start);
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if (gtk_text_iter_starts_word (start))
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nc = g_unichar_totitle (c);
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else
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nc = g_unichar_tolower (c);
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g_string_append_unichar (s, nc);
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gtk_text_iter_forward_char (start);
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}
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gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
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gtk_text_buffer_insert_at_cursor (buffer, s->str, s->len);
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g_string_free (s, TRUE);
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}
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static void
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change_case (XedWindow *window,
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ChangeCaseChoice choice)
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{
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XedDocument *doc;
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GtkTextIter start, end;
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xed_debug (DEBUG_PLUGINS);
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doc = xed_window_get_active_document (window);
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g_return_if_fail (doc != NULL);
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if (!gtk_text_buffer_get_selection_bounds (GTK_TEXT_BUFFER (doc),
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&start, &end))
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{
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return;
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}
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gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (doc));
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switch (choice)
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{
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case TO_UPPER_CASE:
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do_upper_case (GTK_TEXT_BUFFER (doc), &start, &end);
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break;
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case TO_LOWER_CASE:
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do_lower_case (GTK_TEXT_BUFFER (doc), &start, &end);
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break;
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case INVERT_CASE:
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do_invert_case (GTK_TEXT_BUFFER (doc), &start, &end);
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break;
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case TO_TITLE_CASE:
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do_title_case (GTK_TEXT_BUFFER (doc), &start, &end);
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break;
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default:
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g_return_if_reached ();
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}
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gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (doc));
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}
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static void
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upper_case_cb (GtkAction *action,
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XedWindow *window)
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{
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change_case (window, TO_UPPER_CASE);
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}
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static void
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lower_case_cb (GtkAction *action,
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XedWindow *window)
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{
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change_case (window, TO_LOWER_CASE);
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}
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static void
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invert_case_cb (GtkAction *action,
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XedWindow *window)
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{
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change_case (window, INVERT_CASE);
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}
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static void
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title_case_cb (GtkAction *action,
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XedWindow *window)
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{
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change_case (window, TO_TITLE_CASE);
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}
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static const GtkActionEntry action_entries[] =
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{
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{ "ChangeCase", NULL, N_("C_hange Case") },
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{ "UpperCase", NULL, N_("All _Upper Case"), NULL,
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N_("Change selected text to upper case"),
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G_CALLBACK (upper_case_cb) },
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{ "LowerCase", NULL, N_("All _Lower Case"), NULL,
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N_("Change selected text to lower case"),
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G_CALLBACK (lower_case_cb) },
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{ "InvertCase", NULL, N_("_Invert Case"), NULL,
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N_("Invert the case of selected text"),
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G_CALLBACK (invert_case_cb) },
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{ "TitleCase", NULL, N_("_Title Case"), NULL,
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N_("Capitalize the first letter of each selected word"),
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G_CALLBACK (title_case_cb) }
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};
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const gchar submenu[] =
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"<ui>"
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" <menubar name='MenuBar'>"
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" <menu name='EditMenu' action='Edit'>"
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" <placeholder name='EditOps_6'>"
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" <menu action='ChangeCase'>"
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" <menuitem action='UpperCase'/>"
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" <menuitem action='LowerCase'/>"
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" <menuitem action='InvertCase'/>"
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" <menuitem action='TitleCase'/>"
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" </menu>"
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" </placeholder>"
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" </menu>"
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" </menubar>"
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"</ui>";
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static void
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xed_changecase_plugin_init (XedChangecasePlugin *plugin)
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{
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xed_debug_message (DEBUG_PLUGINS, "XedChangecasePlugin initializing");
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}
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static void
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xed_changecase_plugin_finalize (GObject *object)
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{
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G_OBJECT_CLASS (xed_changecase_plugin_parent_class)->finalize (object);
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xed_debug_message (DEBUG_PLUGINS, "XedChangecasePlugin finalizing");
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}
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typedef struct
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{
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GtkActionGroup *action_group;
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guint ui_id;
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} WindowData;
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static void
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free_window_data (WindowData *data)
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{
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g_return_if_fail (data != NULL);
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g_slice_free (WindowData, data);
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}
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static void
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update_ui_real (XedWindow *window,
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WindowData *data)
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{
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GtkTextView *view;
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GtkAction *action;
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gboolean sensitive = FALSE;
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xed_debug (DEBUG_PLUGINS);
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view = GTK_TEXT_VIEW (xed_window_get_active_view (window));
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if (view != NULL)
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{
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GtkTextBuffer *buffer;
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buffer = gtk_text_view_get_buffer (view);
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sensitive = (gtk_text_view_get_editable (view) &&
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gtk_text_buffer_get_has_selection (buffer));
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}
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action = gtk_action_group_get_action (data->action_group,
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"ChangeCase");
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gtk_action_set_sensitive (action, sensitive);
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}
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static void
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impl_activate (XedPlugin *plugin,
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XedWindow *window)
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{
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GtkUIManager *manager;
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WindowData *data;
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GError *error = NULL;
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xed_debug (DEBUG_PLUGINS);
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data = g_slice_new (WindowData);
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manager = xed_window_get_ui_manager (window);
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data->action_group = gtk_action_group_new ("XedChangecasePluginActions");
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gtk_action_group_set_translation_domain (data->action_group,
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GETTEXT_PACKAGE);
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gtk_action_group_add_actions (data->action_group,
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action_entries,
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G_N_ELEMENTS (action_entries),
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window);
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gtk_ui_manager_insert_action_group (manager, data->action_group, -1);
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data->ui_id = gtk_ui_manager_add_ui_from_string (manager,
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submenu,
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-1,
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&error);
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if (data->ui_id == 0)
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{
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g_warning ("%s", error->message);
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free_window_data (data);
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return;
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}
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g_object_set_data_full (G_OBJECT (window),
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WINDOW_DATA_KEY,
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data,
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(GDestroyNotify) free_window_data);
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update_ui_real (window, data);
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}
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static void
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impl_deactivate (XedPlugin *plugin,
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XedWindow *window)
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{
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GtkUIManager *manager;
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WindowData *data;
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xed_debug (DEBUG_PLUGINS);
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manager = xed_window_get_ui_manager (window);
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data = (WindowData *) g_object_get_data (G_OBJECT (window), WINDOW_DATA_KEY);
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g_return_if_fail (data != NULL);
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gtk_ui_manager_remove_ui (manager, data->ui_id);
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gtk_ui_manager_remove_action_group (manager, data->action_group);
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g_object_set_data (G_OBJECT (window), WINDOW_DATA_KEY, NULL);
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}
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static void
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impl_update_ui (XedPlugin *plugin,
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XedWindow *window)
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{
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WindowData *data;
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xed_debug (DEBUG_PLUGINS);
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data = (WindowData *) g_object_get_data (G_OBJECT (window), WINDOW_DATA_KEY);
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g_return_if_fail (data != NULL);
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update_ui_real (window, data);
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}
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static void
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xed_changecase_plugin_class_init (XedChangecasePluginClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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XedPluginClass *plugin_class = XED_PLUGIN_CLASS (klass);
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object_class->finalize = xed_changecase_plugin_finalize;
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plugin_class->activate = impl_activate;
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plugin_class->deactivate = impl_deactivate;
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plugin_class->update_ui = impl_update_ui;
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}
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