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test-widget.c @ 20969

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Revision 20969, 28.0 KB checked in by ghudson, 20 years ago (diff)
This commit was generated by cvs2svn to compensate for changes in r20968, which included commits to RCS files with non-trunk default branches.

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1	/* -- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; coding: utf-8 --
2	* test-widget.c
3	*
4	* Copyright (C) 2001
5	* Mikael Hermansson<tyan@linux.se>
6	*
7	* Copyright (C) 2003 - Gustavo Giráldez <gustavo.giraldez@gmx.net>
8	*
9	* This program is free software; you can redistribute it and/or modify
10	* it under the terms of the GNU General Public License as published by
11	* the Free Software Foundation; either version 2 of the License, or
12	* (at your option) any later version.
13	*
14	* This program is distributed in the hope that it will be useful,
15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17	* GNU General Public License for more details.
18	*
19	* You should have received a copy of the GNU General Public License
20	* along with this program; if not, write to the Free Software
21	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22	*/
23
24	#include <stdio.h>
25	#include <string.h>
26	#include <gtk/gtk.h>
27	#include <libgnomevfs/gnome-vfs-init.h>
28	#include <libgnomevfs/gnome-vfs-mime-utils.h>
29	#include <libgnomevfs/gnome-vfs-utils.h>
30	#include <libgnomeprintui/gnome-print-job-preview.h>
31	#include <gtksourceview/gtksourceview.h>
32	#include <gtksourceview/gtksourcelanguage.h>
33	#include <gtksourceview/gtksourcelanguagesmanager.h>
34	#include <gtksourceview/gtksourceprintjob.h>
35
36
37	/* Global list of open windows */
38
39	static GList *windows = NULL;
40
41
42	/* Private data structures */
43
44	#define READ_BUFFER_SIZE 4096
45
46	#define MARKER_TYPE_1 "one"
47	#define MARKER_TYPE_2 "two"
48
49
50	/* Private prototypes -------------------------------------------------------- */
51
52	static void open_file_cb (GtkAction *action,
53	gpointer user_data);
54
55	static void new_view_cb (GtkAction *action,
56	gpointer user_data);
57	static void numbers_toggled_cb (GtkAction *action,
58	gpointer user_data);
59	static void markers_toggled_cb (GtkAction *action,
60	gpointer user_data);
61	static void margin_toggled_cb (GtkAction *action,
62	gpointer user_data);
63	static void auto_indent_toggled_cb (GtkAction *action,
64	gpointer user_data);
65	static void insert_spaces_toggled_cb (GtkAction *action,
66	gpointer user_data);
67	static void tabs_toggled_cb (GtkAction *action,
68	GtkAction *current,
69	gpointer user_data);
70	static void print_preview_cb (GtkAction *action,
71	gpointer user_data);
72
73	static GtkWidget create_view_window (GtkSourceBuffer buffer,
74	GtkSourceView *from);
75
76
77	/* Actions & UI definition ---------------------------------------------------- */
78
79	static GtkActionEntry buffer_action_entries[] = {
80	{ "Open", GTK_STOCK_OPEN, "_Open", "<control>O",
81	"Open a file", G_CALLBACK (open_file_cb) },
82	{ "Quit", GTK_STOCK_QUIT, "_Quit", "<control>Q",
83	"Exit the application", G_CALLBACK (gtk_main_quit) },
84	};
85
86	static GtkActionEntry view_action_entries[] = {
87	{ "FileMenu", NULL, "_File" },
88	{ "ViewMenu", NULL, "_View" },
89	{ "PrintPreview", GTK_STOCK_PRINT, "_Print Preview", "<control>P",
90	"Preview printing of the file", G_CALLBACK (print_preview_cb) },
91	{ "NewView", GTK_STOCK_NEW, "_New View", NULL,
92	"Create a new view of the file", G_CALLBACK (new_view_cb) },
93	{ "TabsWidth", NULL, "_Tabs Width" },
94	};
95
96	static GtkToggleActionEntry toggle_entries[] = {
97	{ "ShowNumbers", NULL, "Show _Line Numbers", NULL,
98	"Toggle visibility of line numbers in the left margin",
99	G_CALLBACK (numbers_toggled_cb), FALSE },
100	{ "ShowMarkers", NULL, "Show _Markers", NULL,
101	"Toggle visibility of markers in the left margin",
102	G_CALLBACK (markers_toggled_cb), FALSE },
103	{ "ShowMargin", NULL, "Show M_argin", NULL,
104	"Toggle visibility of right margin indicator",
105	G_CALLBACK (margin_toggled_cb), FALSE },
106	{ "AutoIndent", NULL, "Enable _Auto Indent", NULL,
107	"Toggle automatic auto indentation of text",
108	G_CALLBACK (auto_indent_toggled_cb), FALSE },
109	{ "InsertSpaces", NULL, "Insert _Spaces Instead of Tabs", NULL,
110	"Whether to insert space characters when inserting tabulations",
111	G_CALLBACK (insert_spaces_toggled_cb), FALSE }
112	};
113
114	static GtkRadioActionEntry radio_entries[] = {
115	{ "TabsWidth4", NULL, "4", NULL, "Set tabulation width to 4 spaces", 4 },
116	{ "TabsWidth6", NULL, "6", NULL, "Set tabulation width to 6 spaces", 6 },
117	{ "TabsWidth8", NULL, "8", NULL, "Set tabulation width to 8 spaces", 8 },
118	{ "TabsWidth10", NULL, "10", NULL, "Set tabulation width to 10 spaces", 10 },
119	{ "TabsWidth12", NULL, "12", NULL, "Set tabulation width to 12 spaces", 12 }
120	};
121
122	static const gchar *view_ui_description =
123	"<ui>"
124	" <menubar name=\"MainMenu\">"
125	" <menu action=\"FileMenu\">"
126	" <menuitem action=\"PrintPreview\"/>"
127	" </menu>"
128	" <menu action=\"ViewMenu\">"
129	" <menuitem action=\"NewView\"/>"
130	" <separator/>"
131	" <menuitem action=\"ShowNumbers\"/>"
132	" <menuitem action=\"ShowMarkers\"/>"
133	" <menuitem action=\"ShowMargin\"/>"
134	" <separator/>"
135	" <menuitem action=\"AutoIndent\"/>"
136	" <menuitem action=\"InsertSpaces\"/>"
137	" <separator/>"
138	" <menu action=\"TabsWidth\">"
139	" <menuitem action=\"TabsWidth4\"/>"
140	" <menuitem action=\"TabsWidth6\"/>"
141	" <menuitem action=\"TabsWidth8\"/>"
142	" <menuitem action=\"TabsWidth10\"/>"
143	" <menuitem action=\"TabsWidth12\"/>"
144	" </menu>"
145	" </menu>"
146	" </menubar>"
147	"</ui>";
148
149	static const gchar *buffer_ui_description =
150	"<ui>"
151	" <menubar name=\"MainMenu\">"
152	" <menu action=\"FileMenu\">"
153	" <menuitem action=\"Open\"/>"
154	" <separator/>"
155	" <menuitem action=\"Quit\"/>"
156	" </menu>"
157	" <menu action=\"ViewMenu\">"
158	" </menu>"
159	" </menubar>"
160	"</ui>";
161
162
163	/* File loading code ----------------------------------------------------------------- */
164
165	static void
166	error_dialog (GtkWindow parent, const gchar msg, ...)
167	{
168	va_list ap;
169	gchar *tmp;
170	GtkWidget *dialog;
171
172	va_start (ap, msg);
173	tmp = g_strdup_vprintf (msg, ap);
174	va_end (ap);
175
176	dialog = gtk_message_dialog_new (parent,
177	GTK_DIALOG_DESTROY_WITH_PARENT,
178	GTK_MESSAGE_ERROR,
179	GTK_BUTTONS_OK,
180	tmp);
181	g_free (tmp);
182
183	gtk_dialog_run (GTK_DIALOG (dialog));
184	gtk_widget_destroy (dialog);
185	}
186
187	static gboolean
188	gtk_source_buffer_load_with_encoding (GtkSourceBuffer *source_buffer,
189	const gchar *filename,
190	const gchar *encoding,
191	GError **error)
192	{
193	GIOChannel *io;
194	GtkTextIter iter;
195	gchar *buffer;
196	gboolean reading;
197
198	g_return_val_if_fail (source_buffer != NULL, FALSE);
199	g_return_val_if_fail (filename != NULL, FALSE);
200	g_return_val_if_fail (GTK_IS_SOURCE_BUFFER (source_buffer), FALSE);
201
202	*error = NULL;
203
204	io = g_io_channel_new_file (filename, "r", error);
205	if (!io)
206	{
207	error_dialog (NULL, "%s\nFile %s", (*error)->message, filename);
208	return FALSE;
209	}
210
211	if (g_io_channel_set_encoding (io, encoding, error) != G_IO_STATUS_NORMAL)
212	{
213	error_dialog (NULL, "Failed to set encoding:\n%s\n%s",
214	filename, (*error)->message);
215	return FALSE;
216	}
217
218	gtk_source_buffer_begin_not_undoable_action (source_buffer);
219
220	gtk_text_buffer_set_text (GTK_TEXT_BUFFER (source_buffer), "", 0);
221	buffer = g_malloc (READ_BUFFER_SIZE);
222	reading = TRUE;
223	while (reading)
224	{
225	gsize bytes_read;
226	GIOStatus status;
227
228	status = g_io_channel_read_chars (io, buffer,
229	READ_BUFFER_SIZE, &bytes_read,
230	error);
231	switch (status)
232	{
233	case G_IO_STATUS_EOF:
234	reading = FALSE;
235	/* fall through */
236
237	case G_IO_STATUS_NORMAL:
238	if (bytes_read == 0)
239	{
240	continue;
241	}
242
243	gtk_text_buffer_get_end_iter (
244	GTK_TEXT_BUFFER (source_buffer), &iter);
245	gtk_text_buffer_insert (GTK_TEXT_BUFFER (source_buffer),
246	&iter, buffer, bytes_read);
247	break;
248
249	case G_IO_STATUS_AGAIN:
250	continue;
251
252	case G_IO_STATUS_ERROR:
253	default:
254	error_dialog (NULL, "%s\nFile %s", (*error)->message, filename);
255
256	/* because of error in input we clear already loaded text */
257	gtk_text_buffer_set_text (GTK_TEXT_BUFFER (source_buffer), "", 0);
258
259	reading = FALSE;
260	break;
261	}
262	}
263	g_free (buffer);
264
265	gtk_source_buffer_end_not_undoable_action (source_buffer);
266
267	g_io_channel_unref (io);
268
269	if (*error)
270	return FALSE;
271
272	gtk_text_buffer_set_modified (GTK_TEXT_BUFFER (source_buffer), FALSE);
273
274	/* move cursor to the beginning */
275	gtk_text_buffer_get_start_iter (GTK_TEXT_BUFFER (source_buffer), &iter);
276	gtk_text_buffer_place_cursor (GTK_TEXT_BUFFER (source_buffer), &iter);
277
278	return TRUE;
279	}
280
281	static void
282	remove_all_markers (GtkSourceBuffer *buffer)
283	{
284	GSList *markers;
285	GtkTextIter begin, end;
286
287	gtk_text_buffer_get_bounds (GTK_TEXT_BUFFER (buffer), &begin, &end);
288	markers = gtk_source_buffer_get_markers_in_region (buffer, &begin, &end);
289	while (markers)
290	{
291	GtkSourceMarker *marker = markers->data;
292
293	gtk_source_buffer_delete_marker (buffer, marker);
294	markers = g_slist_delete_link (markers, markers);
295	}
296	}
297
298	static gboolean
299	open_file (GtkSourceBuffer buffer, const gchar filename)
300	{
301	GtkSourceLanguagesManager *manager;
302	GtkSourceLanguage *language = NULL;
303	gchar *mime_type;
304	GError *err = NULL;
305	gchar *uri;
306
307	/* get the new language for the file mimetype */
308	manager = g_object_get_data (G_OBJECT (buffer), "languages-manager");
309
310	/* I hate this! */
311	if (g_path_is_absolute (filename))
312	{
313	uri = gnome_vfs_get_uri_from_local_path (filename);
314	}
315	else
316	{
317	gchar curdir, path;
318
319	curdir = g_get_current_dir ();
320	path = g_strconcat (curdir, "/", filename, NULL);
321	g_free (curdir);
322	uri = gnome_vfs_get_uri_from_local_path (path);
323	g_free (path);
324	}
325
326	mime_type = gnome_vfs_get_mime_type (uri);
327	g_free (uri);
328	if (mime_type)
329	{
330	language = gtk_source_languages_manager_get_language_from_mime_type (manager,
331	mime_type);
332
333	if (language == NULL)
334	{
335	g_print ("No language found for mime type `%s'\n", mime_type);
336	g_object_set (G_OBJECT (buffer), "highlight", FALSE, NULL);
337	}
338	else
339	{
340	g_object_set (G_OBJECT (buffer), "highlight", TRUE, NULL);
341
342	gtk_source_buffer_set_language (buffer, language);
343	}
344
345	g_free (mime_type);
346	}
347	else
348	{
349	g_object_set (G_OBJECT (buffer), "highlight", FALSE, NULL);
350
351	g_warning ("Couldn't get mime type for file `%s'", filename);
352	}
353
354	remove_all_markers (buffer);
355	gtk_source_buffer_load_with_encoding (buffer, filename, "utf-8", &err);
356	g_object_set_data_full (G_OBJECT (buffer),
357	"filename", g_strdup (filename),
358	(GDestroyNotify) g_free);
359
360	if (err != NULL)
361	{
362	g_error_free (err);
363	return FALSE;
364	}
365	return TRUE;
366	}
367
368
369	/* Printing callbacks --------------------------------------------------------- */
370
371	static void
372	page_cb (GtkSourcePrintJob *job, gpointer user_data)
373	{
374	g_print ("Printing %.2f%% \r",
375	100.0 * gtk_source_print_job_get_page (job) /
376	gtk_source_print_job_get_page_count (job));
377	}
378
379	static void
380	finished_cb (GtkSourcePrintJob *job, gpointer user_data)
381	{
382	GnomePrintJob *gjob;
383	GtkWidget *preview;
384
385	g_print ("\n");
386	gjob = gtk_source_print_job_get_print_job (job);
387	preview = gnome_print_job_preview_new (gjob, "test-widget print preview");
388	g_object_unref (gjob);
389	g_object_unref (job);
390
391	gtk_widget_show (preview);
392	}
393
394
395	/* View action callbacks -------------------------------------------------------- */
396
397	static void
398	numbers_toggled_cb (GtkAction *action, gpointer user_data)
399	{
400	g_return_if_fail (GTK_IS_TOGGLE_ACTION (action) && GTK_IS_SOURCE_VIEW (user_data));
401	gtk_source_view_set_show_line_numbers (
402	GTK_SOURCE_VIEW (user_data),
403	gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action)));
404	}
405
406	static void
407	markers_toggled_cb (GtkAction *action, gpointer user_data)
408	{
409	g_return_if_fail (GTK_IS_TOGGLE_ACTION (action) && GTK_IS_SOURCE_VIEW (user_data));
410	gtk_source_view_set_show_line_markers (
411	GTK_SOURCE_VIEW (user_data),
412	gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action)));
413	}
414
415	static void
416	margin_toggled_cb (GtkAction *action, gpointer user_data)
417	{
418	g_return_if_fail (GTK_IS_TOGGLE_ACTION (action) && GTK_IS_SOURCE_VIEW (user_data));
419	gtk_source_view_set_show_margin (
420	GTK_SOURCE_VIEW (user_data),
421	gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action)));
422	}
423
424	static void
425	auto_indent_toggled_cb (GtkAction *action,
426	gpointer user_data)
427	{
428	g_return_if_fail (GTK_IS_TOGGLE_ACTION (action) && GTK_IS_SOURCE_VIEW (user_data));
429	gtk_source_view_set_auto_indent (
430	GTK_SOURCE_VIEW (user_data),
431	gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action)));
432	}
433
434	static void
435	insert_spaces_toggled_cb (GtkAction *action,
436	gpointer user_data)
437	{
438	g_return_if_fail (GTK_IS_TOGGLE_ACTION (action) && GTK_IS_SOURCE_VIEW (user_data));
439	gtk_source_view_set_insert_spaces_instead_of_tabs (
440	GTK_SOURCE_VIEW (user_data),
441	gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action)));
442	}
443
444	static void
445	tabs_toggled_cb (GtkAction *action,
446	GtkAction *current,
447	gpointer user_data)
448	{
449	g_return_if_fail (GTK_IS_RADIO_ACTION (action) && GTK_IS_SOURCE_VIEW (user_data));
450	gtk_source_view_set_tabs_width (
451	GTK_SOURCE_VIEW (user_data),
452	gtk_radio_action_get_current_value (GTK_RADIO_ACTION (action)));
453	}
454
455	static void
456	new_view_cb (GtkAction *action, gpointer user_data)
457	{
458	GtkSourceBuffer *buffer;
459	GtkSourceView *view;
460	GtkWidget *window;
461
462	g_return_if_fail (GTK_IS_SOURCE_VIEW (user_data));
463
464	view = GTK_SOURCE_VIEW (user_data);
465	buffer = GTK_SOURCE_BUFFER (gtk_text_view_get_buffer (GTK_TEXT_VIEW (view)));
466
467	window = create_view_window (buffer, view);
468	gtk_window_set_default_size (GTK_WINDOW (window), 400, 400);
469	gtk_widget_show (window);
470	}
471
472	static void
473	print_preview_cb (GtkAction *action, gpointer user_data)
474	{
475	GtkSourcePrintJob *job;
476	GtkSourceView *view;
477	GtkSourceBuffer *buffer;
478	GtkTextIter start, end;
479	gchar *filename;
480
481	g_return_if_fail (GTK_IS_SOURCE_VIEW (user_data));
482
483	view = GTK_SOURCE_VIEW (user_data);
484	buffer = GTK_SOURCE_BUFFER (gtk_text_view_get_buffer (GTK_TEXT_VIEW (user_data)));
485
486	job = gtk_source_print_job_new (NULL);
487	gtk_source_print_job_setup_from_view (job, view);
488	gtk_source_print_job_set_wrap_mode (job, GTK_WRAP_CHAR);
489	gtk_source_print_job_set_highlight (job, TRUE);
490	gtk_source_print_job_set_print_numbers (job, 5);
491
492	gtk_source_print_job_set_header_format (job,
493	"Printed on %A",
494	NULL,
495	"%F",
496	TRUE);
497
498	filename = g_object_get_data (G_OBJECT (buffer), "filename");
499
500	gtk_source_print_job_set_footer_format (job,
501	"%T",
502	filename,
503	"Page %N/%Q",
504	TRUE);
505
506	gtk_source_print_job_set_print_header (job, TRUE);
507	gtk_source_print_job_set_print_footer (job, TRUE);
508
509	gtk_text_buffer_get_bounds (GTK_TEXT_BUFFER (buffer), &start, &end);
510	if (gtk_source_print_job_print_range_async (job, &start, &end))
511	{
512	g_signal_connect (job, "begin_page", (GCallback) page_cb, NULL);
513	g_signal_connect (job, "finished", (GCallback) finished_cb, NULL);
514	}
515	else
516	{
517	g_warning ("Async print failed");
518	}
519	}
520
521
522	/* Buffer action callbacks ------------------------------------------------------------ */
523
524	static void
525	open_file_cb (GtkAction *action, gpointer user_data)
526	{
527	GtkWidget *chooser;
528	gint response;
529
530	g_return_if_fail (GTK_IS_SOURCE_BUFFER (user_data));
531
532	chooser = gtk_file_chooser_dialog_new ("Open file...",
533	NULL,
534	GTK_FILE_CHOOSER_ACTION_OPEN,
535	GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
536	GTK_STOCK_OPEN, GTK_RESPONSE_OK,
537	NULL);
538
539	response = gtk_dialog_run (GTK_DIALOG (chooser));
540	if (response == GTK_RESPONSE_OK)
541	{
542	gchar *filename;
543
544	filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (chooser));
545	if (filename != NULL)
546	{
547	open_file (GTK_SOURCE_BUFFER (user_data), filename);
548	g_free (filename);
549	}
550	}
551
552	gtk_widget_destroy (chooser);
553	}
554
555
556	/* View UI callbacks ------------------------------------------------------------------ */
557
558	static void
559	update_cursor_position (GtkTextBuffer *buffer, gpointer user_data)
560	{
561	gchar *msg;
562	gint row, col, chars, tabwidth;
563	GtkTextIter iter, start;
564	GtkSourceView *view;
565	GtkLabel *pos_label;
566
567	g_return_if_fail (GTK_IS_SOURCE_VIEW (user_data));
568
569	view = GTK_SOURCE_VIEW (user_data);
570	tabwidth = gtk_source_view_get_tabs_width (view);
571	pos_label = GTK_LABEL (g_object_get_data (G_OBJECT (view), "pos_label"));
572
573	gtk_text_buffer_get_iter_at_mark (buffer,
574	&iter,
575	gtk_text_buffer_get_insert (buffer));
576
577	chars = gtk_text_iter_get_offset (&iter);
578	row = gtk_text_iter_get_line (&iter) + 1;
579
580	start = iter;
581	gtk_text_iter_set_line_offset (&start, 0);
582	col = 0;
583
584	while (!gtk_text_iter_equal (&start, &iter))
585	{
586	if (gtk_text_iter_get_char (&start) == '\t')
587	{
588	col += (tabwidth - (col % tabwidth));
589	}
590	else
591	++col;
592
593	gtk_text_iter_forward_char (&start);
594	}
595
596	msg = g_strdup_printf ("char: %d, line: %d, column: %d", chars, row, col);
597	gtk_label_set_text (pos_label, msg);
598	g_free (msg);
599	}
600
601	static void
602	move_cursor_cb (GtkTextBuffer *buffer,
603	GtkTextIter *cursoriter,
604	GtkTextMark *mark,
605	gpointer user_data)
606	{
607	if (mark != gtk_text_buffer_get_insert (buffer))
608	return;
609
610	update_cursor_position (buffer, user_data);
611	}
612
613	static gboolean
614	window_deleted_cb (GtkWidget widget, GdkEvent ev, gpointer user_data)
615	{
616	g_return_val_if_fail (GTK_IS_SOURCE_VIEW (user_data), TRUE);
617
618	if (g_list_nth_data (windows, 0) == widget)
619	{
620	/* Main (first in the list) window was closed, so exit
621	* the application */
622	gtk_main_quit ();
623	}
624	else
625	{
626	GtkSourceView *view = GTK_SOURCE_VIEW (user_data);
627	GtkSourceBuffer *buffer = GTK_SOURCE_BUFFER (
628	gtk_text_view_get_buffer (GTK_TEXT_VIEW (view)));
629
630	windows = g_list_remove (windows, widget);
631
632	/* deinstall buffer motion signal handlers */
633	g_signal_handlers_disconnect_matched (buffer,
634	G_SIGNAL_MATCH_DATA,
635	0, /* signal_id */
636	0, /* detail */
637	NULL, /* closure */
638	NULL, /* func */
639	user_data);
640
641	/* we return FALSE since we want the window destroyed */
642	return FALSE;
643	}
644
645	return TRUE;
646	}
647
648	static gboolean
649	button_press_cb (GtkWidget widget, GdkEventButton ev, gpointer user_data)
650	{
651	GtkSourceView *view;
652	GtkSourceBuffer *buffer;
653
654	g_return_val_if_fail (GTK_IS_SOURCE_VIEW (widget), FALSE);
655
656	view = GTK_SOURCE_VIEW (widget);
657	buffer = GTK_SOURCE_BUFFER (gtk_text_view_get_buffer (GTK_TEXT_VIEW (view)));
658
659	if (!gtk_source_view_get_show_line_markers (view))
660	return FALSE;
661
662	/* check that the click was on the left gutter */
663	if (ev->window == gtk_text_view_get_window (GTK_TEXT_VIEW (view),
664	GTK_TEXT_WINDOW_LEFT))
665	{
666	gint y_buf;
667	GtkTextIter line_start, line_end;
668	GSList marker_list, list_iter;
669	GtkSourceMarker *marker;
670	const gchar *marker_type;
671
672	if (ev->button == 1)
673	marker_type = MARKER_TYPE_1;
674	else
675	marker_type = MARKER_TYPE_2;
676
677	gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
678	GTK_TEXT_WINDOW_LEFT,
679	ev->x, ev->y,
680	NULL, &y_buf);
681
682	/* get line bounds */
683	gtk_text_view_get_line_at_y (GTK_TEXT_VIEW (view),
684	&line_start,
685	y_buf,
686	NULL);
687
688	line_end = line_start;
689	gtk_text_iter_forward_to_line_end (&line_end);
690
691	/* get the markers already in the line */
692	marker_list = gtk_source_buffer_get_markers_in_region (buffer,
693	&line_start,
694	&line_end);
695
696	/* search for the marker corresponding to the button pressed */
697	marker = NULL;
698	for (list_iter = marker_list;
699	list_iter && !marker;
700	list_iter = g_slist_next (list_iter))
701	{
702	GtkSourceMarker *tmp = list_iter->data;
703	gchar *tmp_type = gtk_source_marker_get_marker_type (tmp);
704
705	if (tmp_type && !strcmp (tmp_type, marker_type))
706	{
707	marker = tmp;
708	}
709	g_free (tmp_type);
710	}
711	g_slist_free (marker_list);
712
713	if (marker)
714	{
715	/* a marker was found, so delete it */
716	gtk_source_buffer_delete_marker (buffer, marker);
717	}
718	else
719	{
720	/* no marker found -> create one */
721	marker = gtk_source_buffer_create_marker (buffer, NULL,
722	marker_type, &line_start);
723	}
724	}
725
726	return FALSE;
727	}
728
729
730	/* Window creation functions -------------------------------------------------------- */
731
732	static GtkWidget *
733	create_view_window (GtkSourceBuffer buffer, GtkSourceView from)
734	{
735	GtkWidget window, sw, view, vbox, pos_label, menu;
736	PangoFontDescription *font_desc = NULL;
737	GdkPixbuf *pixbuf;
738	GtkAccelGroup *accel_group;
739	GtkActionGroup *action_group;
740	GtkUIManager *ui_manager;
741	GError *error;
742
743	g_return_val_if_fail (GTK_IS_SOURCE_BUFFER (buffer), NULL);
744	g_return_val_if_fail (from == NULL \|\| GTK_IS_SOURCE_VIEW (from), NULL);
745
746	/* window */
747	window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
748	gtk_container_set_border_width (GTK_CONTAINER (window), 0);
749	gtk_window_set_title (GTK_WINDOW (window), "GtkSourceView Demo");
750	windows = g_list_append (windows, window);
751
752	/* view */
753	view = gtk_source_view_new_with_buffer (buffer);
754
755	g_signal_connect (buffer, "mark_set", G_CALLBACK (move_cursor_cb), view);
756	g_signal_connect (buffer, "changed", G_CALLBACK (update_cursor_position), view);
757	g_signal_connect (view, "button-press-event", G_CALLBACK (button_press_cb), NULL);
758	g_signal_connect (window, "delete-event", (GCallback) window_deleted_cb, view);
759
760	/* action group and UI manager */
761	action_group = gtk_action_group_new ("ViewActions");
762	gtk_action_group_add_actions (action_group, view_action_entries,
763	G_N_ELEMENTS (view_action_entries), view);
764	gtk_action_group_add_toggle_actions (action_group, toggle_entries,
765	G_N_ELEMENTS (toggle_entries), view);
766	gtk_action_group_add_radio_actions (action_group, radio_entries,
767	G_N_ELEMENTS (radio_entries),
768	-1, G_CALLBACK (tabs_toggled_cb), view);
769
770	ui_manager = gtk_ui_manager_new ();
771	gtk_ui_manager_insert_action_group (ui_manager, action_group, 0);
772	g_object_unref (action_group);
773
774	/* save a reference to the ui manager in the window for later use */
775	g_object_set_data_full (G_OBJECT (window), "ui_manager",
776	ui_manager, (GDestroyNotify) g_object_unref);
777
778	accel_group = gtk_ui_manager_get_accel_group (ui_manager);
779	gtk_window_add_accel_group (GTK_WINDOW (window), accel_group);
780
781	error = NULL;
782	if (!gtk_ui_manager_add_ui_from_string (ui_manager, view_ui_description, -1, &error))
783	{
784	g_message ("building view ui failed: %s", error->message);
785	g_error_free (error);
786	exit (1);
787	}
788
789	/* misc widgets */
790	vbox = gtk_vbox_new (0, FALSE);
791	sw = gtk_scrolled_window_new (NULL, NULL);
792	gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
793	GTK_SHADOW_IN);
794	pos_label = gtk_label_new ("Position");
795	g_object_set_data (G_OBJECT (view), "pos_label", pos_label);
796	menu = gtk_ui_manager_get_widget (ui_manager, "/MainMenu");
797
798	/* layout widgets */
799	gtk_container_add (GTK_CONTAINER (window), vbox);
800	gtk_box_pack_start (GTK_BOX (vbox), menu, FALSE, FALSE, 0);
801	gtk_box_pack_start (GTK_BOX (vbox), sw, TRUE, TRUE, 0);
802	gtk_container_add (GTK_CONTAINER (sw), view);
803	gtk_box_pack_start (GTK_BOX (vbox), pos_label, FALSE, FALSE, 0);
804
805	/* setup view */
806	font_desc = pango_font_description_from_string ("monospace 10");
807	if (font_desc != NULL)
808	{
809	gtk_widget_modify_font (view, font_desc);
810	pango_font_description_free (font_desc);
811	}
812
813	/* change view attributes to match those of from */
814	if (from)
815	{
816	gchar *tmp;
817	GtkAction *action;
818
819	action = gtk_action_group_get_action (action_group, "ShowNumbers");
820	gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action),
821	gtk_source_view_get_show_line_numbers (from));
822
823	action = gtk_action_group_get_action (action_group, "ShowMarkers");
824	gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action),
825	gtk_source_view_get_show_line_markers (from));
826
827	action = gtk_action_group_get_action (action_group, "ShowMargin");
828	gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action),
829	gtk_source_view_get_show_margin (from));
830
831	action = gtk_action_group_get_action (action_group, "AutoIndent");
832	gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action),
833	gtk_source_view_get_auto_indent (from));
834
835	action = gtk_action_group_get_action (action_group, "InsertSpaces");
836	gtk_toggle_action_set_active (
837	GTK_TOGGLE_ACTION (action),
838	gtk_source_view_get_insert_spaces_instead_of_tabs (from));
839
840
841	tmp = g_strdup_printf ("TabsWidth%d", gtk_source_view_get_tabs_width (from));
842	action = gtk_action_group_get_action (action_group, tmp);
843	if (action)
844	gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE);
845	g_free (tmp);
846	}
847
848	/* add marker pixbufs */
849	error = NULL;
850	if ((pixbuf = gdk_pixbuf_new_from_file (DATADIR "/pixmaps/apple-green.png", &error)))
851	{
852	gtk_source_view_set_marker_pixbuf (GTK_SOURCE_VIEW (view), MARKER_TYPE_1, pixbuf);
853	g_object_unref (pixbuf);
854	}
855	else
856	{
857	g_message ("could not load marker 1 image. Spurious messages might get triggered: %s",
858	error->message);
859	g_error_free (error);
860	}
861
862	error = NULL;
863	if ((pixbuf = gdk_pixbuf_new_from_file (DATADIR "/pixmaps/apple-red.png", &error)))
864	{
865	gtk_source_view_set_marker_pixbuf (GTK_SOURCE_VIEW (view), MARKER_TYPE_2, pixbuf);
866	g_object_unref (pixbuf);
867	}
868	else
869	{
870	g_message ("could not load marker 2 image. Spurious messages might get triggered: %s",
871	error->message);
872	g_error_free (error);
873	}
874
875	gtk_widget_show_all (vbox);
876
877	return window;
878	}
879
880	static GtkWidget *
881	create_main_window (GtkSourceBuffer *buffer)
882	{
883	GtkWidget *window;
884	GtkAction *action;
885	GtkUIManager *ui_manager;
886	GtkActionGroup *action_group;
887	GList *groups;
888	GError *error;
889
890	window = create_view_window (buffer, NULL);
891	ui_manager = g_object_get_data (G_OBJECT (window), "ui_manager");
892
893	/* buffer action group */
894	action_group = gtk_action_group_new ("BufferActions");
895	gtk_action_group_add_actions (action_group, buffer_action_entries,
896	G_N_ELEMENTS (buffer_action_entries), buffer);
897	gtk_ui_manager_insert_action_group (ui_manager, action_group, 1);
898	g_object_unref (action_group);
899
900	/* merge buffer ui */
901	error = NULL;
902	if (!gtk_ui_manager_add_ui_from_string (ui_manager, buffer_ui_description, -1, &error))
903	{
904	g_message ("building buffer ui failed: %s", error->message);
905	g_error_free (error);
906	exit (1);
907	}
908
909	/* preselect menu checkitems */
910	groups = gtk_ui_manager_get_action_groups (ui_manager);
911	/* retrieve the view action group at position 0 in the list */
912	action_group = g_list_nth_data (groups, 0);
913
914	action = gtk_action_group_get_action (action_group, "ShowNumbers");
915	gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE);
916
917	action = gtk_action_group_get_action (action_group, "ShowMarkers");
918	gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE);
919
920	action = gtk_action_group_get_action (action_group, "ShowMargin");
921	gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE);
922
923	action = gtk_action_group_get_action (action_group, "AutoIndent");
924	gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE);
925
926	action = gtk_action_group_get_action (action_group, "InsertSpaces");
927	gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), FALSE);
928
929	action = gtk_action_group_get_action (action_group, "TabsWidth8");
930	gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE);
931
932	return window;
933	}
934
935
936	/* Buffer creation -------------------------------------------------------------- */
937
938	static GtkSourceBuffer *
939	create_source_buffer (GtkSourceLanguagesManager *manager)
940	{
941	GtkSourceBuffer *buffer;
942
943	buffer = GTK_SOURCE_BUFFER (gtk_source_buffer_new (NULL));
944	g_object_ref (manager);
945	g_object_set_data_full (G_OBJECT (buffer), "languages-manager",
946	manager, (GDestroyNotify) g_object_unref);
947
948	return buffer;
949	}
950
951
952	/* Program entry point ------------------------------------------------------------ */
953
954	int
955	main (int argc, char *argv[])
956	{
957	GtkWidget *window;
958	GtkSourceLanguagesManager *lm;
959	GtkSourceBuffer *buffer;
960
961	/* initialization */
962	gtk_init (&argc, &argv);
963	gnome_vfs_init ();
964
965	/* create buffer */
966	lm = gtk_source_languages_manager_new ();
967	buffer = create_source_buffer (lm);
968	g_object_unref (lm);
969
970	if (argc > 1)
971	open_file (buffer, argv [1]);
972	else
973	open_file (buffer, "../gtksourceview/gtksourcebuffer.c");
974
975	/* create first window */
976	window = create_main_window (buffer);
977	gtk_window_set_default_size (GTK_WINDOW (window), 500, 500);
978	gtk_widget_show (window);
979
980	/* ... and action! */
981	gtk_main ();
982
983	/* cleanup */
984	g_list_foreach (windows, (GFunc) gtk_widget_destroy, NULL);
985	g_list_free (windows);
986	g_object_unref (buffer);
987
988	gnome_vfs_shutdown ();
989
990	return 0;
991	}

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source: trunk/third/gtksourceview/tests/test-widget.c @ 20969

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