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Revision 1.11 - (show annotations) (download) (as text)
Wed Nov 29 14:58:27 2006 UTC (17 years, 4 months ago) by aloha
Branch: MAIN
Changes since 1.10: +11 -15 lines
File MIME type: text/x-csrc
add customization feature of modeline (and add related some API)

1 /* vim: set encoding=utf8:
2 *
3 * buffer.c
4 *
5 * This file is part of Shiki.
6 *
7 * Copyright(C)2006 WAKATSUKI toshihiro
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25 * SOFTWARE.
26 *
27 * $Id: buffer.c,v 1.10 2006/11/29 05:08:46 aloha Exp $
28 */
29 #include"shiki.h"
30
31 ScmClass *ShikiBufferClass;
32 extern void Scm_Init_xyzzylisp(ScmModule *module);
33
34 /* GtkTextBuffer ��������������������� ShikiBuffer ��������������������� */
35 static gint compBuffer(gconstpointer a, gconstpointer b) {
36 return ((ShikiBuffer *)a)->text_buffer == b ? 0 : b - a;
37 }
38
39 static GList *get_ShikiBufferListElement_By_GtkTextBuffer(GtkTextBuffer *b) {
40 return g_list_find_custom(Shiki_EDITOR_BUFFER_LIST, b, compBuffer);
41 }
42
43 static void buffer_print(ScmObj obj, ScmPort *out, ScmWriteContext *ctx) {
44 GtkTextBuffer *b = SHIKI_BUFFER_UNBOX(obj);
45 GList *l = g_list_find_custom(Shiki_EDITOR_BUFFER_LIST, b, compBuffer);
46 if(l)
47 Scm_Printf(out, "#<buffer: %s>", ((ShikiBuffer *)(l->data))->name);
48 else
49 Scm_Printf(out, "#<deleted buffer: %p>", b);
50 }
51
52 static void buffer_cleanup(ScmObj obj)
53 {
54 g_object_unref(SHIKI_BUFFER_UNBOX(obj));
55 }
56
57 /* ������������������������������������������������������������������������������������������ */
58 static gboolean delete_event_handler(GtkWidget *widget, GdkEvent *event, GtkTextBuffer *buffer){
59 /* delete-event ������������������������FALSE ��������������������������������������������� */
60 return Shiki_need_buffer_save_p(buffer) && !Shiki_yes_or_no_p("��������������������������������������������������������������������������� ?");
61 }
62
63 /* ��������������������������������������������� */
64 static void insert_text_handler(GtkTextBuffer *buffer, GtkTextIter *iter, gchar *str, gint len) {
65 /* Undo ��������������������������� */
66 ShikiUndoInfo *undoInfo = g_malloc(sizeof(ShikiUndoInfo));
67 g_return_if_fail(undoInfo != NULL);
68 undoInfo->action = SHIKI_UNDO_INSERT;
69 undoInfo->str = g_strdup(str);
70 undoInfo->strlen = len;
71 undoInfo->start = gtk_text_iter_get_offset(iter);
72 undoInfo->end = undoInfo->start + undoInfo->strlen;
73 Shiki_CURRENT_UNDO_INFO_LIST = g_list_prepend(Shiki_CURRENT_UNDO_INFO_LIST, undoInfo);
74 }
75
76 /* ��������������������������������������������������������������� */
77 void Shiki_update_modeline(GtkTextBuffer *buffer) {
78 gtk_label_set_text(GTK_LABEL(Shiki_EDITOR_MODELINE_LABEL), Scm_GetString(SCM_STRING(Scm_EvalCString("(if *mode-line-format* (*mode-line-format*) \"\")", Shiki_CURRENT_BUFFER_ENV))));
79 }
80
81 /* ������������������������������������������������ */
82 static void delete_range_handler(GtkTextBuffer *buffer, GtkTextIter *start, GtkTextIter *end) {
83 /* Undo ��������������������������� */
84 ShikiUndoInfo *undoInfo = g_malloc(sizeof(ShikiUndoInfo));
85 g_return_if_fail(undoInfo != NULL);
86 undoInfo->action = SHIKI_UNDO_DELETE;
87 undoInfo->str = gtk_text_buffer_get_text(buffer, start, end, FALSE);
88 undoInfo->start = gtk_text_iter_get_offset(start);
89 undoInfo->end = gtk_text_iter_get_offset(end);
90 undoInfo->strlen = end - start;
91 Shiki_CURRENT_UNDO_INFO_LIST = g_list_prepend(Shiki_CURRENT_UNDO_INFO_LIST, undoInfo);
92 }
93
94 static void cursor_moved_handler() {
95 Shiki_update_modeline(Shiki_CURRENT_TEXT_BUFFER);
96 }
97
98 /* ��������������������������������������� (������������) ��������� */
99 GtkTextBuffer *Shiki_new_buffer_create(gchar *filename) {
100 /*-------------------- ������������������������ ----------------------------------*/
101 /* ShikiBuffer ������������������������������������������������������������������ */
102 ShikiBuffer *tabinfo = g_malloc(sizeof(ShikiBuffer));
103 tabinfo->locale = "Gtk Default (utf8)";
104 tabinfo->undoInfoList = NULL;
105 tabinfo->filename = filename;
106 tabinfo->name = g_path_get_basename(filename);
107 tabinfo->tabpage_label = g_strndup(tabinfo->name, 10);
108 tabinfo->env = Scm_MakeModule(NULL, FALSE);
109
110 ShikiBufferClass = Scm_MakeForeignPointerClass(SCM_MODULE(tabinfo->env),
111 "<buffer>", buffer_print, buffer_cleanup,
112 SCM_FOREIGN_POINTER_KEEP_IDENTITY
113 |
114 SCM_FOREIGN_POINTER_MAP_NULL);
115
116 /* xyzzy lisp ��������������� */
117 Scm_Init_xyzzylisp(SCM_MODULE(tabinfo->env));
118
119 /* ������������������������������ (������������������������) ��������� */
120 tabinfo->tabpage = GTK_SCROLLED_WINDOW(gtk_scrolled_window_new(NULL, NULL));
121 gtk_scrolled_window_set_policy (tabinfo->tabpage, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
122
123 /* ��������������������������������������������������������������������������������������� */
124 tabinfo->text_view = GTK_TEXT_VIEW(gtk_text_view_new());
125 gtk_text_view_set_wrap_mode(tabinfo->text_view, GTK_WRAP_WORD);
126 tabinfo->text_buffer = gtk_text_view_get_buffer(tabinfo->text_view);
127 gtk_widget_set_size_request(GTK_WIDGET(tabinfo->text_view), 680, 700);
128
129 gtk_container_add(GTK_CONTAINER(tabinfo->tabpage), GTK_WIDGET(tabinfo->text_view));
130 g_signal_connect(tabinfo->text_buffer, "mark_set", G_CALLBACK(cursor_moved_handler), tabinfo->text_view);
131 g_signal_connect(tabinfo->text_buffer, "insert-text", G_CALLBACK(insert_text_handler), NULL);
132 g_signal_connect(tabinfo->text_buffer, "delete-range", G_CALLBACK(delete_range_handler), NULL);
133
134 /* ������������������������������������������������������������������������������������������������������ */
135 tabinfo->delete_handler_id = g_signal_connect(Shiki_EDITOR_WINDOW, "delete_event", G_CALLBACK(delete_event_handler), tabinfo->text_buffer);
136
137 /* ������������������������ */
138
139 /* ������������������������������������������������ */
140 gtk_text_buffer_create_tag(tabinfo->text_buffer, "parent_emphasis_background", "background", "green", NULL);
141
142 /* ������������������������������������������ */
143 gtk_text_buffer_create_tag(tabinfo->text_buffer, "keyword_highlighting", "foreground", "blue", NULL);
144 /* ������ */
145 gtk_text_buffer_create_tag(tabinfo->text_buffer, "function_highlighting", "foreground", "red", NULL);
146 /* ������������ */
147 gtk_text_buffer_create_tag (tabinfo->text_buffer, "comment_highlighting", "foreground", "purple", NULL);
148 /* ��������� */
149 gtk_text_buffer_create_tag (tabinfo->text_buffer, "string_highlighting", "foreground", "orange", NULL);
150 /* ������������������������������������������ */
151 gtk_notebook_append_page(Shiki_EDITOR_NOTEBOOK, GTK_WIDGET(tabinfo->tabpage), gtk_label_new(tabinfo->tabpage_label));
152 /* ������������������������������������������������������������������ */
153 Shiki_EDITOR_BUFFER_LIST = g_list_append(Shiki_EDITOR_BUFFER_LIST, tabinfo);
154
155 gtk_widget_show_all(GTK_WIDGET(Shiki_EDITOR_NOTEBOOK));
156 /* ��������������������������������� */
157 gtk_notebook_set_current_page(Shiki_EDITOR_NOTEBOOK, g_list_length(Shiki_EDITOR_BUFFER_LIST) - 1);
158 //Shiki_CURRENT_TAB_INFO = tabinfo;
159
160 Scm_EvalCString("(set! *mode-line-format* (lambda () (format #f \"--~A- ~A (Gauche Interaction) [GtkDefault (utf8)] L~S:~S \" (if (buffer-modified-p) \"--\" \"**\") (buffer-name (selected-buffer)) (current-line-number) (current-column))))", tabinfo->env);
161 return tabinfo->text_buffer;
162 }
163
164 void Shiki_create_file_buffer(const gchar *filename) {
165 gchar *text;
166 gchar *utf8filename = g_locale_to_utf8(filename, -1, NULL, NULL, NULL);
167 GtkTextIter p;
168 ScmObj s;
169
170 /* g_file_get_contents(filename, &contents, &len, NULL); */
171
172 /* ������������������������������ */
173 Shiki_new_buffer_create(g_strdup(filename));
174 gtk_window_set_title (GTK_WINDOW (Shiki_EDITOR_WINDOW), filename);
175
176 Scm_Define(SCM_MODULE(Shiki_CURRENT_BUFFER_ENV), SCM_SYMBOL(SCM_INTERN("*filename*")), SCM_MAKE_STR_COPYING(utf8filename));
177 g_free(utf8filename);
178
179 Scm_EvalCString("(use gauche.charconv)", Shiki_CURRENT_BUFFER_ENV);
180
181 /* ������������������������������������������������������������������������������ */
182 s = Scm_EvalCString("(port->string (open-input-conversion-port (open-input-file *filename*) \"*jp\" :owner? #t))", Shiki_CURRENT_BUFFER_ENV);
183 text = Scm_GetString(SCM_STRING(s));
184 if(text)
185 gtk_text_buffer_set_text(Shiki_CURRENT_TEXT_BUFFER, text, -1);
186 else {
187 /* open-input-conversion-port ������������������������������������������������������
188 * ��������������������������������������������������������������������������� UTF8
189 */
190 gchar *contents;
191 gsize br, bw, len;
192 GError *err = NULL;
193
194 if(g_file_get_contents(filename, &contents, &len, NULL)) {
195 if(!(text = g_locale_to_utf8(contents, -1, &br, &bw, &err)))
196 gtk_text_buffer_insert(Shiki_CURRENT_TEXT_BUFFER, &p, text, -1);
197 else
198 gtk_text_buffer_insert(Shiki_CURRENT_TEXT_BUFFER, &p, contents, -1);
199 g_free(contents);
200 }
201 }
202
203 /* ������������������������ */
204 gtk_text_buffer_set_modified(Shiki_CURRENT_TEXT_BUFFER, FALSE);
205 /* ������������������������������ */
206 gtk_text_buffer_get_start_iter(Shiki_CURRENT_TEXT_BUFFER, &p);
207 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
208 Shiki_update_modeline(Shiki_CURRENT_TEXT_BUFFER);
209 gtk_widget_show_all(GTK_WIDGET(Shiki_EDITOR_NOTEBOOK));
210 }
211
212 void Shiki_open_file_dialog() {
213 const gchar *filename = Shiki_file_name_dialog("���������������������");
214
215 if(!filename) return;
216 Shiki_create_file_buffer(filename);
217 }
218
219 void Shiki_delete_buffer(GtkTextBuffer *buffer) {
220 /* ��������������������������������������������������������������������������������������������������� */
221 /* ���������������������Scheme ������������������������ Gtk ������������������������������������������������ */
222 GList *bufListElem = get_ShikiBufferListElement_By_GtkTextBuffer(buffer);
223 ShikiBuffer *tabInfo = bufListElem->data;
224 gint bufNum = g_list_position(Shiki_EDITOR_BUFFER_LIST, bufListElem);
225
226 /* ��������� 1 ��������������������������������������������������� */
227 if(g_list_length(Shiki_EDITOR_BUFFER_LIST) == 1)
228 return;
229 /* ��������������������������������������������������������������������������������������������� */
230 g_signal_handler_disconnect(Shiki_EDITOR_WINDOW, tabInfo->delete_handler_id);
231 Shiki_EDITOR_BUFFER_LIST = g_list_delete_link(Shiki_EDITOR_BUFFER_LIST, bufListElem);
232 gtk_widget_destroy(GTK_WIDGET(tabInfo->tabpage));
233 g_free(tabInfo->tabpage_label);
234 g_free(tabInfo->name);
235 g_free(tabInfo->filename);
236 g_free(tabInfo);
237 gtk_notebook_remove_page(Shiki_EDITOR_NOTEBOOK, bufNum);
238 /* ��������������� */
239 gtk_widget_queue_draw(GTK_WIDGET(Shiki_EDITOR_NOTEBOOK));
240 }
241
242 GtkTextBuffer *Shiki_find_buffer(const gchar *name) {
243 GList *l;
244 for(l = Shiki_EDITOR_BUFFER_LIST; l != NULL; l = l->next)
245 if(strcmp(((ShikiBuffer *)l->data)->name, name) == 0)
246 return ((ShikiBuffer *)l->data)->text_buffer;
247 return NULL;
248 }
249
250 gchar *Shiki_buffer_substring(gint start, gint end) {
251 if(start >= end)
252 return NULL;
253 else {
254 GtkTextIter s, e;
255 gtk_text_buffer_get_iter_at_offset(Shiki_CURRENT_TEXT_BUFFER, &s, start);
256 gtk_text_buffer_get_iter_at_offset(Shiki_CURRENT_TEXT_BUFFER, &e, end);
257
258 return gtk_text_buffer_get_text(Shiki_CURRENT_TEXT_BUFFER, &s, &e, FALSE);
259 }
260 }
261
262 void Shiki_delete_region(gint start, gint end) {
263 if(start >= end)
264 return;
265 else {
266 GtkTextIter s, e;
267 gtk_text_buffer_get_iter_at_offset(Shiki_CURRENT_TEXT_BUFFER, &s, start);
268 gtk_text_buffer_get_iter_at_offset(Shiki_CURRENT_TEXT_BUFFER, &e, end);
269
270 return gtk_text_buffer_delete(Shiki_CURRENT_TEXT_BUFFER, &s, &e);
271 }
272 }
273
274 gint Shiki_point() {
275 GtkTextIter p;
276 gtk_text_buffer_get_iter_at_mark(Shiki_CURRENT_TEXT_BUFFER,&p, gtk_text_buffer_get_insert(Shiki_CURRENT_TEXT_BUFFER));
277 return gtk_text_iter_get_offset(&p);
278 }
279
280 gint Shiki_point_max() {
281 GtkTextIter p;
282 gtk_text_buffer_get_end_iter(Shiki_CURRENT_TEXT_BUFFER, &p);
283 return gtk_text_iter_get_offset(&p);
284 }
285
286 gint Shiki_point_min() {
287 return 0;
288 }
289
290 void Shiki_goto_char(gint offset) {
291 GtkTextIter p;
292 gtk_text_buffer_get_iter_at_offset(Shiki_CURRENT_TEXT_BUFFER, &p, offset);
293 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
294 }
295
296 void Shiki_forward_char() {
297 GtkTextIter p;
298 gtk_text_buffer_get_iter_at_mark(Shiki_CURRENT_TEXT_BUFFER,&p, gtk_text_buffer_get_insert(Shiki_CURRENT_TEXT_BUFFER));
299 gtk_text_iter_forward_char(&p);
300 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
301 }
302
303 void Shiki_backward_char() {
304 GtkTextIter p;
305 gtk_text_buffer_get_iter_at_mark(Shiki_CURRENT_TEXT_BUFFER,&p, gtk_text_buffer_get_insert(Shiki_CURRENT_TEXT_BUFFER));
306 gtk_text_iter_backward_char(&p);
307 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
308 }
309
310 void Shiki_goto_line(gint line) {
311 GtkTextIter p;
312 gtk_text_buffer_get_iter_at_line(Shiki_CURRENT_TEXT_BUFFER, &p, line);
313 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
314 }
315
316 void Shiki_goto_bol() {
317 GtkTextIter p;
318 gtk_text_buffer_get_iter_at_mark(Shiki_CURRENT_TEXT_BUFFER,&p, gtk_text_buffer_get_insert(Shiki_CURRENT_TEXT_BUFFER));
319 gtk_text_buffer_get_iter_at_line_offset(Shiki_CURRENT_TEXT_BUFFER, &p, gtk_text_iter_get_line(&p), 0);
320 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
321 }
322
323 void Shiki_goto_eol() {
324 GtkTextIter p;
325 gtk_text_buffer_get_iter_at_mark(Shiki_CURRENT_TEXT_BUFFER,&p, gtk_text_buffer_get_insert(Shiki_CURRENT_TEXT_BUFFER));
326 gtk_text_iter_forward_to_line_end(&p);
327 gtk_text_iter_backward_char(&p);
328 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
329 }
330
331 void Shiki_forward_line(gint count) {
332 GtkTextIter p;
333 gint i;
334 gtk_text_buffer_get_iter_at_mark(Shiki_CURRENT_TEXT_BUFFER,&p, gtk_text_buffer_get_insert(Shiki_CURRENT_TEXT_BUFFER));
335
336 if(count >= 0) {
337 for(i = count; i != 0; i--)
338 gtk_text_view_forward_display_line(Shiki_CURRENT_TEXT_VIEW, &p);
339 } else {
340 for(i = count; i != 0; i++)
341 gtk_text_view_backward_display_line(Shiki_CURRENT_TEXT_VIEW, &p);
342 }
343 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
344 }
345
346 const char *Shiki_buffer_name(GtkTextBuffer *buffer) {
347 GList *l = get_ShikiBufferListElement_By_GtkTextBuffer(buffer);
348 if(l)
349 return ((ShikiBuffer *)(l->data))->name;
350 else
351 return NULL;
352 }
353
354 gboolean Shiki_deleted_buffer_p(GtkTextBuffer *buffer) {
355 GList *l = get_ShikiBufferListElement_By_GtkTextBuffer(buffer);
356 if(l)
357 return FALSE;
358 else
359 return TRUE;
360 }
361
362 GtkTextBuffer *Shiki_get_next_buffer(GtkTextBuffer *buffer) {
363 GList *l = get_ShikiBufferListElement_By_GtkTextBuffer(buffer);
364 if(l && l->next)
365 return ((ShikiBuffer *)(l->next->data))->text_buffer;
366 else
367 return NULL;
368 }
369
370 GtkTextBuffer *Shiki_get_previous_buffer(GtkTextBuffer *buffer) {
371 GList *l = get_ShikiBufferListElement_By_GtkTextBuffer(buffer);
372 if(l && l->prev)
373 return ((ShikiBuffer *)(l->prev->data))->text_buffer;
374 else
375 return NULL;
376 }
377
378 ScmObj Shiki_buffer_list() {
379 GList *l;
380 GtkTextBuffer *b;
381 ScmObj bl = SCM_NIL;
382
383 for(l = Shiki_EDITOR_BUFFER_LIST; l != NULL; l = l->next) {
384 b= ((ShikiBuffer *)(l->data))->text_buffer;
385 bl = Scm_Cons(SHIKI_BUFFER_BOX(g_object_ref(b)), bl);
386 }
387 return bl;
388 }
389
390 void Shiki_erase_buffer(GtkTextBuffer *buffer) {
391 GtkTextIter start, end;
392 gtk_text_buffer_get_start_iter(buffer, &start);
393 gtk_text_buffer_get_end_iter(buffer, &end);
394 gtk_text_buffer_delete(buffer, &start, &end);
395 }
396
397 const gchar *Shiki_file_name_dialog(const gchar *msg) {
398
399 GtkWidget *dialog = gtk_file_selection_new(msg);
400 gint resp = gtk_dialog_run(GTK_DIALOG(dialog));
401 const gchar *filename = NULL;
402
403 if(resp == GTK_RESPONSE_OK)
404 filename = gtk_file_selection_get_filename(GTK_FILE_SELECTION(dialog));
405
406 gtk_widget_destroy(dialog);
407 return filename;
408 }
409
410 gboolean Shiki_yes_or_no_p(const gchar *msg) {
411 GtkWidget *dialog = gtk_message_dialog_new(GTK_WINDOW(Shiki_EDITOR_WINDOW),
412 GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_QUESTION,
413 GTK_BUTTONS_YES_NO, msg);
414 gint resp;
415 gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_YES);
416 resp = gtk_dialog_run(GTK_DIALOG(dialog));
417 gtk_widget_destroy(dialog);
418 if(GTK_RESPONSE_YES == resp)
419 return TRUE;
420 return FALSE;
421 }
422
423 gboolean Shiki_no_or_yes_p(const gchar *msg) {
424 GtkWidget *dialog = gtk_message_dialog_new(GTK_WINDOW(Shiki_EDITOR_WINDOW),
425 GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_QUESTION,
426 GTK_BUTTONS_YES_NO, msg);
427 gint resp;
428 gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_NO);
429 resp = gtk_dialog_run(GTK_DIALOG(dialog));
430 gtk_widget_destroy(dialog);
431 if(GTK_RESPONSE_YES == resp)
432 return TRUE;
433 return FALSE;
434 }
435
436 gboolean Shiki_need_buffer_save_p(GtkTextBuffer *buffer) {
437 return gtk_text_buffer_get_modified(buffer);
438 }
439
440 /* ������������ */
441 void Shiki_kill_buffer(GtkTextBuffer *buffer) {
442 if(!Shiki_need_buffer_save_p(buffer) || Shiki_yes_or_no_p("��������������������������������������������������������������������������� ?"))
443 Shiki_delete_buffer(buffer);
444 }

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