566 lines
16 KiB
C
566 lines
16 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) version 3.
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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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with the program; if not, see <http://www.gnu.org/licenses/>
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*
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*
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* Authors:
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* Chris Lahey <clahey@ximian.com>
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*
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* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
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*
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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 <string.h>
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#include <gdk/gdkkeysyms.h>
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#include "e-text-event-processor-emacs-like.h"
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static gint e_text_event_processor_emacs_like_event
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(ETextEventProcessor *tep,
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ETextEventProcessorEvent *event);
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G_DEFINE_TYPE (
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ETextEventProcessorEmacsLike,
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e_text_event_processor_emacs_like,
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E_TYPE_TEXT_EVENT_PROCESSOR)
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static const ETextEventProcessorCommand control_keys[26] = {
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{ E_TEP_START_OF_LINE, E_TEP_MOVE, 0, "" }, /* a */
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{ E_TEP_BACKWARD_CHARACTER, E_TEP_MOVE, 0, "" }, /* b */
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{ E_TEP_SELECTION, E_TEP_COPY, 0, "" }, /* c */
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{ E_TEP_FORWARD_CHARACTER, E_TEP_DELETE, 0, "" }, /* d */
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{ E_TEP_END_OF_LINE, E_TEP_MOVE, 0, "" }, /* e */
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{ E_TEP_FORWARD_CHARACTER, E_TEP_MOVE, 0, "" }, /* f */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* g */
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{ E_TEP_BACKWARD_CHARACTER, E_TEP_DELETE, 0, "" }, /* h */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* i */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* j */
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{ E_TEP_END_OF_LINE, E_TEP_DELETE, 0, "" }, /* k */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* l */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* m */
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{ E_TEP_FORWARD_LINE, E_TEP_MOVE, 0, "" }, /* n */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* o */
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{ E_TEP_BACKWARD_LINE, E_TEP_MOVE, 0, "" }, /* p */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* q */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* r */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* s */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* t */
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{ E_TEP_START_OF_LINE, E_TEP_DELETE, 0, "" }, /* u */
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{ E_TEP_SELECTION, E_TEP_PASTE, 0, "" }, /* v */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* w */
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{ E_TEP_SELECTION, E_TEP_DELETE, 0, "" }, /* x */
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{ E_TEP_SELECTION, E_TEP_PASTE, 0, "" }, /* y */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" } /* z */
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};
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static const ETextEventProcessorCommand alt_keys[26] = {
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* a */
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{ E_TEP_BACKWARD_WORD, E_TEP_MOVE, 0, "" }, /* b */
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{ E_TEP_SELECTION, E_TEP_CAPS, E_TEP_CAPS_TITLE, "" },/* c */
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{ E_TEP_FORWARD_WORD, E_TEP_DELETE, 0, "" }, /* d */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* e */
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{ E_TEP_FORWARD_WORD, E_TEP_MOVE, 0, "" }, /* f */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* g */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* h */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* i */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* j */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* k */
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{ E_TEP_SELECTION, E_TEP_CAPS, E_TEP_CAPS_LOWER, "" }, /* l */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* m */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* n */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* o */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* p */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* q */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* r */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* s */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* t */
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{ E_TEP_SELECTION, E_TEP_CAPS, E_TEP_CAPS_UPPER, "" }, /* u */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* v */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* w */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* x */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" }, /* y */
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{ E_TEP_SELECTION, E_TEP_NOP, 0, "" } /* z */
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};
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static void
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e_text_event_processor_emacs_like_class_init (ETextEventProcessorEmacsLikeClass *class)
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{
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ETextEventProcessorClass *processor_class;
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processor_class = (ETextEventProcessorClass *) class;
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processor_class->event = e_text_event_processor_emacs_like_event;
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}
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static void
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e_text_event_processor_emacs_like_init (ETextEventProcessorEmacsLike *tep)
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{
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}
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static gint
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e_text_event_processor_emacs_like_event (ETextEventProcessor *tep,
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ETextEventProcessorEvent *event)
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{
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ETextEventProcessorCommand command;
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ETextEventProcessorEmacsLike *tep_el = E_TEXT_EVENT_PROCESSOR_EMACS_LIKE (tep);
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command.action = E_TEP_NOP;
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/* Warning from the Intel compiler here:
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* e-text-event-processor-emacs-like.c(136): warning #589:
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* transfer of control bypasses initialization of:
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* variable "key" (declared at line 194)
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* switch (event->type) {
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* ^
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*/
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switch (event->type) {
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case GDK_BUTTON_PRESS:
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if (event->button.button == 1 || event->button.button == 2) {
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command.action = E_TEP_GRAB;
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command.device = event->button.device;
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command.time = event->button.time;
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g_signal_emit_by_name (tep, "command", &command);
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if (event->button.button == 1 && event->button.state & GDK_SHIFT_MASK)
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command.action = E_TEP_SELECT;
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else
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command.action = E_TEP_MOVE;
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command.position = E_TEP_VALUE;
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command.value = event->button.position;
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command.time = event->button.time;
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tep_el->mouse_down = event->button.button == 1;
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}
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break;
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case GDK_2BUTTON_PRESS:
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if (event->button.button == 1) {
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command.action = E_TEP_SELECT;
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command.position = E_TEP_SELECT_WORD;
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command.time = event->button.time;
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}
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break;
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case GDK_3BUTTON_PRESS:
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if (event->button.button == 1) {
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command.action = E_TEP_SELECT;
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command.position = E_TEP_SELECT_ALL;
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command.time = event->button.time;
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}
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break;
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case GDK_BUTTON_RELEASE:
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if (event->button.button == 1) {
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command.action = E_TEP_UNGRAB;
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command.time = event->button.time;
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tep_el->mouse_down = FALSE;
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} else if (event->button.button == 2) {
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command.action = E_TEP_MOVE;
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command.position = E_TEP_VALUE;
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command.value = event->button.position;
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command.time = event->button.time;
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g_signal_emit_by_name (tep, "command", &command);
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command.action = E_TEP_GET_SELECTION;
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command.position = E_TEP_SELECTION;
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command.value = 0;
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command.time = event->button.time;
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}
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break;
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case GDK_MOTION_NOTIFY:
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if (tep_el->mouse_down) {
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command.action = E_TEP_SELECT;
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command.position = E_TEP_VALUE;
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command.time = event->motion.time;
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command.value = event->motion.position;
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}
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break;
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case GDK_KEY_PRESS:
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{
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ETextEventProcessorEventKey key = event->key;
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command.time = event->key.time;
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if (key.state & GDK_SHIFT_MASK)
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command.action = E_TEP_SELECT;
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else if (key.state & GDK_MOD1_MASK)
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command.action = E_TEP_NOP;
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else
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command.action = E_TEP_MOVE;
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switch (key.keyval) {
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case GDK_KEY_Home:
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case GDK_KEY_KP_Home:
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if (key.state & GDK_CONTROL_MASK)
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command.position = E_TEP_START_OF_BUFFER;
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else
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command.position = E_TEP_START_OF_LINE;
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break;
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case GDK_KEY_End:
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case GDK_KEY_KP_End:
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if (key.state & GDK_CONTROL_MASK)
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command.position = E_TEP_END_OF_BUFFER;
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else
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command.position = E_TEP_END_OF_LINE;
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break;
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case GDK_KEY_Page_Up:
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case GDK_KEY_KP_Page_Up:
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command.position = E_TEP_BACKWARD_PAGE;
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break;
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case GDK_KEY_Page_Down:
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case GDK_KEY_KP_Page_Down:
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command.position = E_TEP_FORWARD_PAGE;
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break;
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/* CUA has Ctrl-Up/Ctrl-Down as paragraph up down */
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case GDK_KEY_Up:
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case GDK_KEY_KP_Up:
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command.position = E_TEP_BACKWARD_LINE;
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break;
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case GDK_KEY_Down:
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case GDK_KEY_KP_Down:
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command.position = E_TEP_FORWARD_LINE;
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break;
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case GDK_KEY_Left:
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case GDK_KEY_KP_Left:
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if (key.state & GDK_CONTROL_MASK)
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command.position = E_TEP_BACKWARD_WORD;
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else
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command.position = E_TEP_BACKWARD_CHARACTER;
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break;
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case GDK_KEY_Right:
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case GDK_KEY_KP_Right:
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if (key.state & GDK_CONTROL_MASK)
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command.position = E_TEP_FORWARD_WORD;
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else
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command.position = E_TEP_FORWARD_CHARACTER;
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break;
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case GDK_KEY_BackSpace:
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command.action = E_TEP_DELETE;
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if (key.state & GDK_CONTROL_MASK)
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command.position = E_TEP_BACKWARD_WORD;
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else
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command.position = E_TEP_BACKWARD_CHARACTER;
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break;
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case GDK_KEY_Clear:
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command.action = E_TEP_DELETE;
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command.position = E_TEP_END_OF_LINE;
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break;
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case GDK_KEY_Insert:
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case GDK_KEY_KP_Insert:
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if (key.state & GDK_SHIFT_MASK) {
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command.action = E_TEP_PASTE;
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command.position = E_TEP_SELECTION;
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} else if (key.state & GDK_CONTROL_MASK) {
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command.action = E_TEP_COPY;
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command.position = E_TEP_SELECTION;
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} else {
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/* gtk_toggle_insert(text) -- IMPLEMENT -- FIXME */
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}
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break;
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case GDK_KEY_F16:
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command.action = E_TEP_COPY;
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command.position = E_TEP_SELECTION;
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break;
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case GDK_KEY_F18:
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command.action = E_TEP_PASTE;
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command.position = E_TEP_SELECTION;
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break;
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case GDK_KEY_F20:
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command.action = E_TEP_COPY;
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command.position = E_TEP_SELECTION;
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g_signal_emit_by_name (
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tep, "command", &command);
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command.action = E_TEP_DELETE;
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command.position = E_TEP_SELECTION;
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break;
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case GDK_KEY_Delete:
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case GDK_KEY_KP_Delete:
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if (key.state & GDK_CONTROL_MASK) {
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command.action = E_TEP_DELETE;
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command.position = E_TEP_FORWARD_WORD;
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} else if (key.state & GDK_SHIFT_MASK) {
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command.action = E_TEP_COPY;
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command.position = E_TEP_SELECTION;
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g_signal_emit_by_name (
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tep, "command", &command);
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command.action = E_TEP_DELETE;
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command.position = E_TEP_SELECTION;
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} else {
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command.action = E_TEP_DELETE;
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command.position = E_TEP_FORWARD_CHARACTER;
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}
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break;
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case GDK_KEY_Tab:
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case GDK_KEY_KP_Tab:
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case GDK_KEY_ISO_Left_Tab:
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case GDK_KEY_3270_BackTab:
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/* Don't insert literally */
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command.action = E_TEP_NOP;
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command.position = E_TEP_SELECTION;
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break;
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case GDK_KEY_Return:
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case GDK_KEY_KP_Enter:
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if (tep->allow_newlines) {
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if (key.state & GDK_CONTROL_MASK) {
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command.action = E_TEP_ACTIVATE;
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command.position = E_TEP_SELECTION;
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} else {
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command.action = E_TEP_INSERT;
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command.position = E_TEP_SELECTION;
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command.value = 1;
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command.string = "\n";
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}
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} else {
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if (key.state & GDK_CONTROL_MASK) {
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command.action = E_TEP_NOP;
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command.position = E_TEP_SELECTION;
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} else {
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command.action = E_TEP_ACTIVATE;
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command.position = E_TEP_SELECTION;
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}
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}
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break;
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case GDK_KEY_Escape:
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/* Don't insert literally */
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command.action = E_TEP_NOP;
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command.position = E_TEP_SELECTION;
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break;
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case GDK_KEY_KP_Space:
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command.action = E_TEP_INSERT;
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command.position = E_TEP_SELECTION;
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command.value = 1;
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command.string = " ";
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break;
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case GDK_KEY_KP_Equal:
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command.action = E_TEP_INSERT;
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command.position = E_TEP_SELECTION;
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command.value = 1;
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command.string = "=";
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break;
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case GDK_KEY_KP_Multiply:
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command.action = E_TEP_INSERT;
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command.position = E_TEP_SELECTION;
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command.value = 1;
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command.string = "*";
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break;
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case GDK_KEY_KP_Add:
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command.action = E_TEP_INSERT;
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command.position = E_TEP_SELECTION;
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command.value = 1;
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command.string = "+";
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break;
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case GDK_KEY_KP_Subtract:
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command.action = E_TEP_INSERT;
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command.position = E_TEP_SELECTION;
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command.value = 1;
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command.string = "-";
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break;
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case GDK_KEY_KP_Decimal:
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command.action = E_TEP_INSERT;
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command.position = E_TEP_SELECTION;
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command.value = 1;
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command.string = ".";
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break;
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case GDK_KEY_KP_Divide:
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command.action = E_TEP_INSERT;
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command.position = E_TEP_SELECTION;
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command.value = 1;
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command.string = "/";
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break;
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case GDK_KEY_KP_0:
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command.action = E_TEP_INSERT;
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command.position = E_TEP_SELECTION;
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command.value = 1;
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command.string = "0";
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break;
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case GDK_KEY_KP_1:
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command.action = E_TEP_INSERT;
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command.position = E_TEP_SELECTION;
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command.value = 1;
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command.string = "1";
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break;
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case GDK_KEY_KP_2:
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command.action = E_TEP_INSERT;
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command.position = E_TEP_SELECTION;
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command.value = 1;
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command.string = "2";
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break;
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case GDK_KEY_KP_3:
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command.action = E_TEP_INSERT;
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command.position = E_TEP_SELECTION;
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command.value = 1;
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command.string = "3";
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break;
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case GDK_KEY_KP_4:
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command.action = E_TEP_INSERT;
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command.position = E_TEP_SELECTION;
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command.value = 1;
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command.string = "4";
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break;
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case GDK_KEY_KP_5:
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command.action = E_TEP_INSERT;
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command.position = E_TEP_SELECTION;
|
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command.value = 1;
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command.string = "5";
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break;
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case GDK_KEY_KP_6:
|
|
command.action = E_TEP_INSERT;
|
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command.position = E_TEP_SELECTION;
|
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command.value = 1;
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command.string = "6";
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|
break;
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|
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|
case GDK_KEY_KP_7:
|
|
command.action = E_TEP_INSERT;
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|
command.position = E_TEP_SELECTION;
|
|
command.value = 1;
|
|
command.string = "7";
|
|
break;
|
|
|
|
case GDK_KEY_KP_8:
|
|
command.action = E_TEP_INSERT;
|
|
command.position = E_TEP_SELECTION;
|
|
command.value = 1;
|
|
command.string = "8";
|
|
break;
|
|
|
|
case GDK_KEY_KP_9:
|
|
command.action = E_TEP_INSERT;
|
|
command.position = E_TEP_SELECTION;
|
|
command.value = 1;
|
|
command.string = "9";
|
|
break;
|
|
|
|
default:
|
|
if ((key.state & GDK_CONTROL_MASK) &&
|
|
!(key.state & GDK_MOD1_MASK)) {
|
|
if ((key.keyval >= 'A') && (key.keyval <= 'Z'))
|
|
key.keyval -= 'A' - 'a';
|
|
|
|
if ((key.keyval >= 'a') && (key.keyval <= 'z')) {
|
|
command.position = control_keys[(gint) (key.keyval - 'a')].position;
|
|
if (control_keys[(gint) (key.keyval - 'a')].action != E_TEP_MOVE)
|
|
command.action = control_keys[(gint) (key.keyval - 'a')].action;
|
|
command.value = control_keys[(gint) (key.keyval - 'a')].value;
|
|
command.string = control_keys[(gint) (key.keyval - 'a')].string;
|
|
}
|
|
|
|
if (key.keyval == ' ') {
|
|
command.action = E_TEP_NOP;
|
|
}
|
|
|
|
if (key.keyval == 'x') {
|
|
command.action = E_TEP_COPY;
|
|
command.position = E_TEP_SELECTION;
|
|
g_signal_emit_by_name (tep, "command", &command);
|
|
|
|
command.action = E_TEP_DELETE;
|
|
command.position = E_TEP_SELECTION;
|
|
}
|
|
|
|
break;
|
|
|
|
} else if ((key.state & GDK_MOD1_MASK) &&
|
|
!(key.state & GDK_CONTROL_MASK)) {
|
|
if ((key.keyval >= 'A') && (key.keyval <= 'Z'))
|
|
key.keyval -= 'A' - 'a';
|
|
|
|
if ((key.keyval >= 'a') && (key.keyval <= 'z')) {
|
|
command.position = alt_keys[(gint) (key.keyval - 'a')].position;
|
|
if (alt_keys[(gint) (key.keyval - 'a')].action != E_TEP_MOVE)
|
|
command.action = alt_keys[(gint) (key.keyval - 'a')].action;
|
|
command.value = alt_keys[(gint) (key.keyval - 'a')].value;
|
|
command.string = alt_keys[(gint) (key.keyval - 'a')].string;
|
|
}
|
|
} else if (!(key.state & GDK_MOD1_MASK) &&
|
|
!(key.state & GDK_CONTROL_MASK) &&
|
|
key.length > 0) {
|
|
if (key.keyval >= GDK_KEY_KP_0 &&
|
|
key.keyval <= GDK_KEY_KP_9) {
|
|
key.keyval = '0';
|
|
key.string = "0";
|
|
}
|
|
command.action = E_TEP_INSERT;
|
|
command.position = E_TEP_SELECTION;
|
|
command.value = strlen (key.string);
|
|
command.string = key.string;
|
|
|
|
} else {
|
|
command.action = E_TEP_NOP;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case GDK_KEY_RELEASE:
|
|
command.time = event->key.time;
|
|
command.action = E_TEP_NOP;
|
|
break;
|
|
|
|
default:
|
|
command.action = E_TEP_NOP;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (command.action != E_TEP_NOP) {
|
|
g_signal_emit_by_name (tep, "command", &command);
|
|
return 1;
|
|
} else
|
|
return 0;
|
|
}
|
|
|
|
ETextEventProcessor *
|
|
e_text_event_processor_emacs_like_new (void)
|
|
{
|
|
return g_object_new (E_TYPE_TEXT_EVENT_PROCESSOR_EMACS_LIKE, NULL);
|
|
}
|
|
|