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Revision 1.10 - (show annotations) (download) (as text)
Wed Nov 29 05:08:46 2006 UTC (17 years, 4 months ago) by aloha
Branch: MAIN
Changes since 1.9: +57 -2 lines
File MIME type: text/x-csrc
add 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 1.9 2006/11/29 04:37:23 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 static void update_modeline_label() {
78 static gchar label[1024];
79 GtkTextIter p;
80 gtk_text_buffer_get_iter_at_mark(Shiki_CURRENT_TEXT_BUFFER, &p, gtk_text_buffer_get_insert(Shiki_CURRENT_TEXT_BUFFER));
81
82 g_snprintf(label, 1024, "--%s- %-10s (Gauche Interaction) [%s] L%d:%d ",
83 gtk_text_buffer_get_modified(Shiki_CURRENT_TEXT_BUFFER) ? "**" : "--",
84 Shiki_CURRENT_BASENAME,
85 Shiki_CURRENT_CES,
86 gtk_text_iter_get_line(&p) + 1,
87 gtk_text_iter_get_line_offset (&p) + 1);
88 gtk_label_set_text(GTK_LABEL(Shiki_EDITOR_MODELINE_LABEL), label);
89 }
90
91 /* ������������������������������������������������ */
92 static void delete_range_handler(GtkTextBuffer *buffer, GtkTextIter *start, GtkTextIter *end) {
93 /* Undo ��������������������������� */
94 ShikiUndoInfo *undoInfo = g_malloc(sizeof(ShikiUndoInfo));
95 g_return_if_fail(undoInfo != NULL);
96 undoInfo->action = SHIKI_UNDO_DELETE;
97 undoInfo->str = gtk_text_buffer_get_text(buffer, start, end, FALSE);
98 undoInfo->start = gtk_text_iter_get_offset(start);
99 undoInfo->end = gtk_text_iter_get_offset(end);
100 undoInfo->strlen = end - start;
101 Shiki_CURRENT_UNDO_INFO_LIST = g_list_prepend(Shiki_CURRENT_UNDO_INFO_LIST, undoInfo);
102 }
103
104 /* ��������������������������������������� (������������) ��������� */
105 GtkTextBuffer *Shiki_new_buffer_create(gchar *filename) {
106 /*-------------------- ������������������������ ----------------------------------*/
107 /* ShikiBuffer ������������������������������������������������������������������ */
108 ShikiBuffer *tabinfo = g_malloc(sizeof(ShikiBuffer));
109 tabinfo->locale = "Gtk Default (utf8)";
110 tabinfo->undoInfoList = NULL;
111 tabinfo->filename = filename;
112 tabinfo->name = g_path_get_basename(filename);
113 tabinfo->tabpage_label = g_strndup(tabinfo->name, 10);
114 tabinfo->env = Scm_MakeModule(NULL, FALSE);
115
116 ShikiBufferClass = Scm_MakeForeignPointerClass(SCM_MODULE(tabinfo->env),
117 "<buffer>", buffer_print, buffer_cleanup,
118 SCM_FOREIGN_POINTER_KEEP_IDENTITY
119 |
120 SCM_FOREIGN_POINTER_MAP_NULL);
121
122 /* xyzzy lisp ��������������� */
123 Scm_Init_xyzzylisp(SCM_MODULE(tabinfo->env));
124
125 /* ������������������������������ (������������������������) ��������� */
126 tabinfo->tabpage = GTK_SCROLLED_WINDOW(gtk_scrolled_window_new(NULL, NULL));
127 gtk_scrolled_window_set_policy (tabinfo->tabpage, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
128
129 /* ��������������������������������������������������������������������������������������� */
130 tabinfo->text_view = GTK_TEXT_VIEW(gtk_text_view_new());
131 gtk_text_view_set_wrap_mode(tabinfo->text_view, GTK_WRAP_WORD);
132 tabinfo->text_buffer = gtk_text_view_get_buffer(tabinfo->text_view);
133 gtk_widget_set_size_request(GTK_WIDGET(tabinfo->text_view), 680, 700);
134
135 gtk_container_add(GTK_CONTAINER(tabinfo->tabpage), GTK_WIDGET(tabinfo->text_view));
136 g_signal_connect(tabinfo->text_buffer, "mark_set", G_CALLBACK(update_modeline_label), tabinfo->text_view);
137 g_signal_connect(tabinfo->text_buffer, "insert-text", G_CALLBACK(insert_text_handler), NULL);
138 g_signal_connect(tabinfo->text_buffer, "delete-range", G_CALLBACK(delete_range_handler), NULL);
139
140 /* ������������������������������������������������������������������������������������������������������ */
141 tabinfo->delete_handler_id = g_signal_connect(Shiki_EDITOR_WINDOW, "delete_event", G_CALLBACK(delete_event_handler), tabinfo->text_buffer);
142
143 /* ������������������������ */
144
145 /* ������������������������������������������������ */
146 gtk_text_buffer_create_tag(tabinfo->text_buffer, "parent_emphasis_background", "background", "green", NULL);
147
148 /* ������������������������������������������ */
149 gtk_text_buffer_create_tag(tabinfo->text_buffer, "keyword_highlighting", "foreground", "blue", NULL);
150 /* ������ */
151 gtk_text_buffer_create_tag(tabinfo->text_buffer, "function_highlighting", "foreground", "red", NULL);
152 /* ������������ */
153 gtk_text_buffer_create_tag (tabinfo->text_buffer, "comment_highlighting", "foreground", "purple", NULL);
154 /* ��������� */
155 gtk_text_buffer_create_tag (tabinfo->text_buffer, "string_highlighting", "foreground", "orange", NULL);
156 /* ������������������������������������������ */
157 gtk_notebook_append_page(Shiki_EDITOR_NOTEBOOK, GTK_WIDGET(tabinfo->tabpage), gtk_label_new(tabinfo->tabpage_label));
158 /* ������������������������������������������������������������������ */
159 Shiki_EDITOR_BUFFER_LIST = g_list_append(Shiki_EDITOR_BUFFER_LIST, tabinfo);
160
161 gtk_widget_show_all(GTK_WIDGET(Shiki_EDITOR_NOTEBOOK));
162 /* ��������������������������������� */
163 gtk_notebook_set_current_page(Shiki_EDITOR_NOTEBOOK, g_list_length(Shiki_EDITOR_BUFFER_LIST) - 1);
164 //Shiki_CURRENT_TAB_INFO = tabinfo;
165 return tabinfo->text_buffer;
166 }
167
168 void Shiki_create_file_buffer(const gchar *filename) {
169 gchar *text;
170 gchar *utf8filename = g_locale_to_utf8(filename, -1, NULL, NULL, NULL);
171 GtkTextIter p;
172 ScmObj s;
173
174 /* g_file_get_contents(filename, &contents, &len, NULL); */
175
176 /* ������������������������������ */
177 Shiki_new_buffer_create(g_strdup(filename));
178 gtk_window_set_title (GTK_WINDOW (Shiki_EDITOR_WINDOW), filename);
179
180 Scm_Define(SCM_MODULE(Shiki_CURRENT_BUFFER_ENV), SCM_SYMBOL(SCM_INTERN("*filename*")), SCM_MAKE_STR_COPYING(utf8filename));
181 g_free(utf8filename);
182
183 Scm_EvalCString("(use gauche.charconv)", Shiki_CURRENT_BUFFER_ENV);
184
185 /* ������������������������������������������������������������������������������ */
186 s = Scm_EvalCString("(port->string (open-input-conversion-port (open-input-file *filename*) \"*jp\" :owner? #t))", Shiki_CURRENT_BUFFER_ENV);
187 text = Scm_GetString(SCM_STRING(s));
188 if(text)
189 gtk_text_buffer_set_text(Shiki_CURRENT_TEXT_BUFFER, text, -1);
190 else {
191 /* open-input-conversion-port ������������������������������������������������������
192 * ��������������������������������������������������������������������������� UTF8
193 */
194 gchar *contents;
195 gsize br, bw, len;
196 GError *err = NULL;
197
198 if(g_file_get_contents(filename, &contents, &len, NULL)) {
199 if(!(text = g_locale_to_utf8(contents, -1, &br, &bw, &err)))
200 gtk_text_buffer_insert(Shiki_CURRENT_TEXT_BUFFER, &p, text, -1);
201 else
202 gtk_text_buffer_insert(Shiki_CURRENT_TEXT_BUFFER, &p, contents, -1);
203 g_free(contents);
204 }
205 }
206
207 /* ������������������������ */
208 gtk_text_buffer_set_modified(Shiki_CURRENT_TEXT_BUFFER, FALSE);
209 /* ������������������������������ */
210 gtk_text_buffer_get_start_iter(Shiki_CURRENT_TEXT_BUFFER, &p);
211 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
212 update_modeline_label();
213 gtk_widget_show_all(GTK_WIDGET(Shiki_EDITOR_NOTEBOOK));
214 }
215
216 void Shiki_open_file_dialog() {
217 const gchar *filename = Shiki_file_name_dialog("���������������������");
218
219 if(!filename) return;
220 Shiki_create_file_buffer(filename);
221 }
222
223 void Shiki_delete_buffer(GtkTextBuffer *buffer) {
224 /* ��������������������������������������������������������������������������������������������������� */
225 /* ���������������������Scheme ������������������������ Gtk ������������������������������������������������ */
226 GList *bufListElem = get_ShikiBufferListElement_By_GtkTextBuffer(buffer);
227 ShikiBuffer *tabInfo = bufListElem->data;
228 gint bufNum = g_list_position(Shiki_EDITOR_BUFFER_LIST, bufListElem);
229
230 /* ��������� 1 ��������������������������������������������������� */
231 if(g_list_length(Shiki_EDITOR_BUFFER_LIST) == 1)
232 return;
233 /* ��������������������������������������������������������������������������������������������� */
234 g_signal_handler_disconnect(Shiki_EDITOR_WINDOW, tabInfo->delete_handler_id);
235 Shiki_EDITOR_BUFFER_LIST = g_list_delete_link(Shiki_EDITOR_BUFFER_LIST, bufListElem);
236 gtk_widget_destroy(GTK_WIDGET(tabInfo->tabpage));
237 g_free(tabInfo->tabpage_label);
238 g_free(tabInfo->name);
239 g_free(tabInfo->filename);
240 g_free(tabInfo);
241 gtk_notebook_remove_page(Shiki_EDITOR_NOTEBOOK, bufNum);
242 /* ��������������� */
243 gtk_widget_queue_draw(GTK_WIDGET(Shiki_EDITOR_NOTEBOOK));
244 }
245
246 GtkTextBuffer *Shiki_find_buffer(const gchar *name) {
247 GList *l;
248 for(l = Shiki_EDITOR_BUFFER_LIST; l != NULL; l = l->next)
249 if(strcmp(((ShikiBuffer *)l->data)->name, name) == 0)
250 return ((ShikiBuffer *)l->data)->text_buffer;
251 return NULL;
252 }
253
254 gchar *Shiki_buffer_substring(gint start, gint end) {
255 if(start >= end)
256 return NULL;
257 else {
258 GtkTextIter s, e;
259 gtk_text_buffer_get_iter_at_offset(Shiki_CURRENT_TEXT_BUFFER, &s, start);
260 gtk_text_buffer_get_iter_at_offset(Shiki_CURRENT_TEXT_BUFFER, &e, end);
261
262 return gtk_text_buffer_get_text(Shiki_CURRENT_TEXT_BUFFER, &s, &e, FALSE);
263 }
264 }
265
266 void Shiki_delete_region(gint start, gint end) {
267 if(start >= end)
268 return;
269 else {
270 GtkTextIter s, e;
271 gtk_text_buffer_get_iter_at_offset(Shiki_CURRENT_TEXT_BUFFER, &s, start);
272 gtk_text_buffer_get_iter_at_offset(Shiki_CURRENT_TEXT_BUFFER, &e, end);
273
274 return gtk_text_buffer_delete(Shiki_CURRENT_TEXT_BUFFER, &s, &e);
275 }
276 }
277
278 gint Shiki_point() {
279 GtkTextIter p;
280 gtk_text_buffer_get_iter_at_mark(Shiki_CURRENT_TEXT_BUFFER,&p, gtk_text_buffer_get_insert(Shiki_CURRENT_TEXT_BUFFER));
281 return gtk_text_iter_get_offset(&p);
282 }
283
284 gint Shiki_point_max() {
285 GtkTextIter p;
286 gtk_text_buffer_get_end_iter(Shiki_CURRENT_TEXT_BUFFER, &p);
287 return gtk_text_iter_get_offset(&p);
288 }
289
290 gint Shiki_point_min() {
291 return 0;
292 }
293
294 void Shiki_goto_char(gint offset) {
295 GtkTextIter p;
296 gtk_text_buffer_get_iter_at_offset(Shiki_CURRENT_TEXT_BUFFER, &p, offset);
297 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
298 }
299
300 void Shiki_forward_char() {
301 GtkTextIter p;
302 gtk_text_buffer_get_iter_at_mark(Shiki_CURRENT_TEXT_BUFFER,&p, gtk_text_buffer_get_insert(Shiki_CURRENT_TEXT_BUFFER));
303 gtk_text_iter_forward_char(&p);
304 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
305 }
306
307 void Shiki_backward_char() {
308 GtkTextIter p;
309 gtk_text_buffer_get_iter_at_mark(Shiki_CURRENT_TEXT_BUFFER,&p, gtk_text_buffer_get_insert(Shiki_CURRENT_TEXT_BUFFER));
310 gtk_text_iter_backward_char(&p);
311 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
312 }
313
314 void Shiki_goto_line(gint line) {
315 GtkTextIter p;
316 gtk_text_buffer_get_iter_at_line(Shiki_CURRENT_TEXT_BUFFER, &p, line);
317 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
318 }
319
320 void Shiki_goto_bol() {
321 GtkTextIter p;
322 gtk_text_buffer_get_iter_at_mark(Shiki_CURRENT_TEXT_BUFFER,&p, gtk_text_buffer_get_insert(Shiki_CURRENT_TEXT_BUFFER));
323 gtk_text_buffer_get_iter_at_line_offset(Shiki_CURRENT_TEXT_BUFFER, &p, gtk_text_iter_get_line(&p), 0);
324 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
325 }
326
327 void Shiki_goto_eol() {
328 GtkTextIter p;
329 gtk_text_buffer_get_iter_at_mark(Shiki_CURRENT_TEXT_BUFFER,&p, gtk_text_buffer_get_insert(Shiki_CURRENT_TEXT_BUFFER));
330 gtk_text_iter_forward_to_line_end(&p);
331 gtk_text_iter_backward_char(&p);
332 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
333 }
334
335 void Shiki_forward_line(gint count) {
336 GtkTextIter p;
337 gint i;
338 gtk_text_buffer_get_iter_at_mark(Shiki_CURRENT_TEXT_BUFFER,&p, gtk_text_buffer_get_insert(Shiki_CURRENT_TEXT_BUFFER));
339
340 if(count >= 0) {
341 for(i = count; i != 0; i--)
342 gtk_text_view_forward_display_line(Shiki_CURRENT_TEXT_VIEW, &p);
343 } else {
344 for(i = count; i != 0; i++)
345 gtk_text_view_backward_display_line(Shiki_CURRENT_TEXT_VIEW, &p);
346 }
347 gtk_text_buffer_place_cursor(Shiki_CURRENT_TEXT_BUFFER, &p);
348 }
349
350 const char *Shiki_buffer_name(GtkTextBuffer *buffer) {
351 GList *l = get_ShikiBufferListElement_By_GtkTextBuffer(buffer);
352 if(l)
353 return ((ShikiBuffer *)(l->data))->name;
354 else
355 return NULL;
356 }
357
358 gboolean Shiki_deleted_buffer_p(GtkTextBuffer *buffer) {
359 GList *l = get_ShikiBufferListElement_By_GtkTextBuffer(buffer);
360 if(l)
361 return FALSE;
362 else
363 return TRUE;
364 }
365
366 GtkTextBuffer *Shiki_get_next_buffer(GtkTextBuffer *buffer) {
367 GList *l = get_ShikiBufferListElement_By_GtkTextBuffer(buffer);
368 if(l && l->next)
369 return ((ShikiBuffer *)(l->next->data))->text_buffer;
370 else
371 return NULL;
372 }
373
374 GtkTextBuffer *Shiki_get_previous_buffer(GtkTextBuffer *buffer) {
375 GList *l = get_ShikiBufferListElement_By_GtkTextBuffer(buffer);
376 if(l && l->prev)
377 return ((ShikiBuffer *)(l->prev->data))->text_buffer;
378 else
379 return NULL;
380 }
381
382 ScmObj Shiki_buffer_list() {
383 GList *l;
384 GtkTextBuffer *b;
385 ScmObj bl = SCM_NIL;
386
387 for(l = Shiki_EDITOR_BUFFER_LIST; l != NULL; l = l->next) {
388 b= ((ShikiBuffer *)(l->data))->text_buffer;
389 bl = Scm_Cons(SHIKI_BUFFER_BOX(g_object_ref(b)), bl);
390 }
391 return bl;
392 }
393
394 void Shiki_erase_buffer(GtkTextBuffer *buffer) {
395 GtkTextIter start, end;
396 gtk_text_buffer_get_start_iter(buffer, &start);
397 gtk_text_buffer_get_end_iter(buffer, &end);
398 gtk_text_buffer_delete(buffer, &start, &end);
399 }
400
401 const gchar *Shiki_file_name_dialog(const gchar *msg) {
402
403 GtkWidget *dialog = gtk_file_selection_new(msg);
404 gint resp = gtk_dialog_run(GTK_DIALOG(dialog));
405 const gchar *filename = NULL;
406
407 if(resp == GTK_RESPONSE_OK)
408 filename = gtk_file_selection_get_filename(GTK_FILE_SELECTION(dialog));
409
410 gtk_widget_destroy(dialog);
411 return filename;
412 }
413
414 gboolean Shiki_yes_or_no_p(const gchar *msg) {
415 GtkWidget *dialog = gtk_message_dialog_new(GTK_WINDOW(Shiki_EDITOR_WINDOW),
416 GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_QUESTION,
417 GTK_BUTTONS_YES_NO, msg);
418 gint resp;
419 gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_YES);
420 resp = gtk_dialog_run(GTK_DIALOG(dialog));
421 gtk_widget_destroy(dialog);
422 if(GTK_RESPONSE_YES == resp)
423 return TRUE;
424 return FALSE;
425 }
426
427 gboolean Shiki_no_or_yes_p(const gchar *msg) {
428 GtkWidget *dialog = gtk_message_dialog_new(GTK_WINDOW(Shiki_EDITOR_WINDOW),
429 GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_QUESTION,
430 GTK_BUTTONS_YES_NO, msg);
431 gint resp;
432 gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_NO);
433 resp = gtk_dialog_run(GTK_DIALOG(dialog));
434 gtk_widget_destroy(dialog);
435 if(GTK_RESPONSE_YES == resp)
436 return TRUE;
437 return FALSE;
438 }
439
440 gboolean Shiki_need_buffer_save_p(GtkTextBuffer *buffer) {
441 return gtk_text_buffer_get_modified(buffer);
442 }
443
444 /* ������������ */
445 void Shiki_kill_buffer(GtkTextBuffer *buffer) {
446 if(!Shiki_need_buffer_save_p(buffer) || Shiki_yes_or_no_p("��������������������������������������������������������������������������� ?"))
447 Shiki_delete_buffer(buffer);
448 }

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