1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
/****************************************************************************************/
/* */
/* 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 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; (See "COPYING"). If not, If not, see <http://www.gnu.org/licenses/>. */
/* */
/*--------------------------------------------------------------------------------------*/
/* */
/* Copyright Joerg Anders, TU Chemnitz, Fakultaet fuer Informatik, GERMANY */
/* ja@informatik.tu-chemnitz.de */
/* */
/* */
/****************************************************************************************/
#include "idcommandhistory.h"
#include "idcommandlist.h"
#include "idiotseditor.h"
NedIdCommandHistory::NedIdCommandHistory(NedIdiotsEditor *id_edit) :
m_command_lists(NULL), m_current_command_list(NULL), m_id_edit(id_edit) {
}
void NedIdCommandHistory::reset() {
/* TODO: free commdand lists */
m_command_lists = NULL;
m_current_command_list = NULL;
}
void NedIdCommandHistory::execute() {
GList *lptr;
if (m_current_command_list == NULL) {
if (m_command_lists == NULL) {
return;
}
m_current_command_list = g_list_first(m_command_lists);
((NedIdCommandList *) m_current_command_list->data)->execute(true);
return;
}
lptr = g_list_next(m_current_command_list);
if (lptr == NULL) {
return;
}
m_current_command_list = lptr;
((NedIdCommandList *) m_current_command_list->data)->execute(true);
}
void NedIdCommandHistory::unexecute() {
if (m_current_command_list == NULL) {
return;
}
((NedIdCommandList *) m_current_command_list->data)->unexecute(true);
m_current_command_list = g_list_previous(m_current_command_list);
}
void NedIdCommandHistory::addCommandList(NedIdCommandList *command_list) {
GList *lptr;
if (m_current_command_list == NULL) {
// TODO free old command list
m_command_lists = NULL;
}
if (m_command_lists != NULL) {
if (m_current_command_list == NULL) {
lptr = m_command_lists;
}
else {
lptr = g_list_next(m_current_command_list);
}
while (lptr != NULL) {
delete ((NedIdCommandList *) lptr->data);
m_command_lists = g_list_delete_link(m_command_lists, lptr);
lptr = g_list_next(m_current_command_list);
}
}
m_command_lists = g_list_append(m_command_lists, command_list);
m_current_command_list = g_list_last(m_command_lists);
}
bool NedIdCommandHistory::unexecute_possible() {
return m_current_command_list != NULL;
}
bool NedIdCommandHistory::execute_possible() {
if (m_current_command_list == NULL) {
if (m_command_lists == NULL) {
return FALSE;
}
return TRUE;
}
return g_list_next(m_current_command_list) != NULL;
}
|
