5e89ad11de24f9b0b574eb6079b2f815fa16b076
[blender.git] / source / blender / windowmanager / intern / wm.c
1 /**
2  * $Id:
3  *
4  * ***** BEGIN GPL LICENSE BLOCK *****
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version. 
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software Foundation,
18  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19  *
20  * The Original Code is Copyright (C) 2007 Blender Foundation.
21  * All rights reserved.
22  *
23  * 
24  * Contributor(s): Blender Foundation
25  *
26  * ***** END GPL LICENSE BLOCK *****
27  */
28
29 #include "DNA_windowmanager_types.h"
30
31 #include "MEM_guardedalloc.h"
32
33 #include "BLI_blenlib.h"
34
35 #include "BKE_blender.h"
36 #include "BKE_context.h"
37 #include "BKE_library.h"
38 #include "BKE_main.h"
39 #include "BKE_idprop.h"
40
41 #include "WM_api.h"
42 #include "WM_types.h"
43 #include "wm_window.h"
44 #include "wm_event_system.h"
45 #include "wm_event_types.h"
46 #include "wm.h"
47
48 #include "ED_screen.h"
49
50 /* ****************************************************** */
51
52 #define MAX_OP_REGISTERED       32
53
54 void wm_operator_free(wmOperator *op)
55 {
56         if(op->properties) {
57                 IDP_FreeProperty(op->properties);
58                 
59                 /* This need change, when the idprop code only
60                  * need call IDP_FreeProperty. (check BKE_idprop.h) */
61                 MEM_freeN(op->properties);
62                 op->properties= NULL;
63         }
64
65         if(op->ptr)
66                 MEM_freeN(op->ptr);
67
68         MEM_freeN(op);
69 }
70
71 /* all operations get registered in the windowmanager here */
72 /* called on event handling by event_system.c */
73 void wm_operator_register(wmWindowManager *wm, wmOperator *op)
74 {
75         int tot;
76
77         BLI_addtail(&wm->operators, op);
78         tot= BLI_countlist(&wm->operators);
79         
80         while(tot>MAX_OP_REGISTERED) {
81                 wmOperator *opt= wm->operators.first;
82                 BLI_remlink(&wm->operators, opt);
83                 wm_operator_free(opt);
84                 tot--;
85         }
86 }
87
88
89 /* ****************************************** */
90
91 void wm_check(bContext *C)
92 {
93         wmWindowManager *wm= CTX_wm_manager(C);
94         
95         /* wm context */
96         if(CTX_wm_manager(C)==NULL) {
97                 wm= CTX_data_main(C)->wm.first;
98                 CTX_wm_manager_set(C, wm);
99         }
100         if(wm==NULL) return;
101         if(wm->windows.first==NULL) return;
102         
103         /* case: no open windows at all, for old file reads */
104         wm_window_add_ghostwindows(wm);
105         
106         /* case: fileread */
107         if(wm->initialized==0) {
108                 
109                 wm_window_keymap(wm);
110                 ED_spacetypes_keymap(wm);
111                 
112                 ED_screens_initialize(wm);
113                 wm->initialized= 1;
114         }
115 }
116
117 /* on startup, it adds all data, for matching */
118 void wm_add_default(bContext *C)
119 {
120         wmWindowManager *wm= alloc_libblock(&CTX_data_main(C)->wm, ID_WM, "WinMan");
121         wmWindow *win;
122         
123         CTX_wm_manager_set(C, wm);
124         
125         win= wm_window_new(C);
126         win->screen= CTX_wm_screen(C); /* XXX from window? */
127         wm->winactive= win;
128         wm_window_make_drawable(C, win); 
129 }
130
131
132 /* context is allowed to be NULL, do not free wm itself (library.c) */
133 void wm_close_and_free(bContext *C, wmWindowManager *wm)
134 {
135         wmWindow *win;
136         wmOperator *op;
137         wmKeyMap *km;
138         wmKeymapItem *kmi;
139         
140         while((win= wm->windows.first)) {
141                 BLI_remlink(&wm->windows, win);
142                 wm_window_free(C, win);
143         }
144         
145         while((op= wm->operators.first)) {
146                 BLI_remlink(&wm->operators, op);
147                 wm_operator_free(op);
148         }
149
150         while((km= wm->keymaps.first)) {
151                 for(kmi=km->keymap.first; kmi; kmi=kmi->next) {
152                         if(kmi->ptr)
153                                 MEM_freeN(kmi->ptr);
154
155                         if(kmi->properties) {
156                                 IDP_FreeProperty(kmi->properties);
157                                 MEM_freeN(kmi->properties);
158                         }
159                 }
160
161                 BLI_freelistN(&km->keymap);
162                 BLI_remlink(&wm->keymaps, km);
163                 MEM_freeN(km);
164         }
165         
166         BLI_freelistN(&wm->queue);
167         
168         if(C && CTX_wm_manager(C)==wm) CTX_wm_manager_set(C, NULL);
169 }
170
171 void wm_close_and_free_all(bContext *C, ListBase *wmlist)
172 {
173         wmWindowManager *wm;
174         
175         while((wm=wmlist->first)) {
176                 wm_close_and_free(C, wm);
177                 BLI_remlink(wmlist, wm);
178                 MEM_freeN(wm);
179         }
180 }
181
182 void WM_main(bContext *C)
183 {
184         while(1) {
185                 
186                 /* get events from ghost, handle window events, add to window queues */
187                 /* WM_init has assigned to ghost the bContext already */
188                 wm_window_process_events(1); 
189                 
190                 /* per window, all events to the window, screen, area and region handlers */
191                 wm_event_do_handlers(C);
192                 
193                 /* events have left notes about changes, we handle and cache it */
194                 wm_event_do_notifiers(C);
195                 
196                 /* execute cached changes draw */
197                 wm_draw_update(C);
198         }
199 }
200
201