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source: tags/ms_r18q1/AWT/AWT_input_mask.cxx

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Last change on this file was 16766, checked in by westram, 6 years ago
reintegrates 'gcc' into 'trunk' mostly cosmetics changes adds: log:branches/gcc@16655,16741:16743,16752:16765
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 92.3 KB

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1	// ==================================================================== //
2	// //
3	// File : AWT_input_mask.cxx //
4	// Purpose : General input masks //
5	// //
6	// //
7	// Coded by Ralf Westram (coder@reallysoft.de) in August 2001 //
8	// Copyright Department of Microbiology (Technical University Munich) //
9	// //
10	// Visit our web site at: http://www.arb-home.de/ //
11	// //
12	// //
13	// ==================================================================== //
14
15	#include "awt_input_mask_internal.hxx"
16
17	#include <awt_www.hxx>
18
19	#include <aw_edit.hxx>
20	#include <aw_file.hxx>
21	#include <aw_msg.hxx>
22	#include <aw_question.hxx>
23
24	#include <arbdbt.h>
25	#include <gb_aci.h>
26	#include <ad_cb.h>
27
28	#include <arb_file.h>
29
30	#include <sys/stat.h>
31	#include <sys/types.h>
32	#include <dirent.h>
33	#include <climits>
34	#include <set>
35
36	using namespace std;
37
38	static const char *awt_itemtype_names[AWT_IT_TYPES+1] = {
39	"Unknown",
40	"Species", "Organism", "Gene", "Experiment",
41	"<overflow>"
42	};
43
44	#define SEC_XBORDER 3 // space left/right of NEW_SECTION line
45	#define SEC_YBORDER 4 // space above/below
46	#define SEC_LINE_WIDTH 1 // line width
47
48	#define MIN_TEXTFIELD_SIZE 1
49	#define MAX_TEXTFIELD_SIZE 1000
50
51	#define AWT_SCOPE_LOCAL 0
52	#define AWT_SCOPE_GLOBAL 1
53
54	awt_input_mask_id_list awt_input_mask_global::global_ids; // stores global ids
55
56	// ---------------------
57	// global awars
58
59	#define AWAR_INPUT_MASK_BASE "tmp/inputMask"
60	#define AWAR_INPUT_MASK_NAME AWAR_INPUT_MASK_BASE"/name"
61	#define AWAR_INPUT_MASK_ITEM AWAR_INPUT_MASK_BASE"/item"
62	#define AWAR_INPUT_MASK_SCOPE AWAR_INPUT_MASK_BASE"/scope"
63	#define AWAR_INPUT_MASK_HIDDEN AWAR_INPUT_MASK_BASE"/hidden"
64
65	#define AWAR_INPUT_MASKS_EDIT_ENABLED AWAR_INPUT_MASK_BASE"/edit_enabled"
66
67	static bool global_awars_created = false;
68
69	static void create_global_awars(AW_root *awr) {
70	awt_assert(!global_awars_created);
71	awr->awar_string(AWAR_INPUT_MASK_NAME, "new");
72	awr->awar_string(AWAR_INPUT_MASK_ITEM, awt_itemtype_names[AWT_IT_SPECIES]);
73	awr->awar_int(AWAR_INPUT_MASK_SCOPE, 0);
74	awr->awar_int(AWAR_INPUT_MASK_HIDDEN, 0);
75	awr->awar_int(AWAR_INPUT_MASKS_EDIT_ENABLED, 0);
76	global_awars_created = true;
77	}
78
79	// ------------------------------------------
80	// Callbacks from database and awars
81
82	static bool in_item_changed_callback = false;
83	static bool in_field_changed_callback = false;
84	static bool in_awar_changed_callback = false;
85
86	static void item_changed_cb(GBDATA, awt_linked_to_item item_link, GB_CB_TYPE type) {
87	if (!in_item_changed_callback) { // avoid deadlock
88	LocallyModify<bool> flag(in_item_changed_callback, true);
89	if (type&GB_CB_DELETE) { // handled child was deleted
90	item_link->relink();
91	}
92	else if ((type&GB_CB_CHANGED_OR_SON_CREATED) == GB_CB_CHANGED_OR_SON_CREATED) {
93	// child was created (not only changed)
94	item_link->relink();
95	}
96	else if (type&GB_CB_CHANGED) { // only changed
97	item_link->general_item_change();
98	}
99	}
100	}
101
102	static void field_changed_cb(GBDATA, awt_input_handler handler, GB_CB_TYPE type) {
103	if (!in_field_changed_callback) { // avoid deadlock
104	LocallyModify<bool> flag(in_field_changed_callback, true);
105	if (type&GB_CB_DELETE) { // field was deleted from db -> relink this item
106	handler->relink();
107	}
108	else if (type&GB_CB_CHANGED) {
109	handler->db_changed(); // database entry was changed
110	}
111	}
112	}
113
114	static void awar_changed_cb(AW_root, awt_mask_awar_item item) {
115	if (!in_awar_changed_callback) { // avoid deadlock
116	LocallyModify<bool> flag(in_awar_changed_callback, true);
117	awt_assert(item);
118	if (item) item->awar_changed();
119	}
120	}
121
122	string awt_input_mask_global::generate_id(const string& mask_name_) {
123	string result;
124	result.reserve(mask_name_.length());
125	for (string::const_iterator p = mask_name_.begin(); p != mask_name_.end(); ++p) {
126	if (isalnum(p)) result.append(1, p);
127	else result.append(1, '_');
128	}
129	return result;
130	}
131
132	bool awt_input_mask_global::edit_allowed() const {
133	return !test_edit_enabled \|\|
134	get_root()->awar(AWAR_INPUT_MASKS_EDIT_ENABLED)->read_int() == 1;
135	}
136
137	void awt_input_mask_global::no_item_selected() const {
138	aw_message(GBS_global_string("This had no effect, because no %s is selected",
139	awt_itemtype_names[get_itemtype()]));
140	}
141
142	GB_ERROR awt_input_mask_id_list::add(const string& name, awt_mask_item *item) {
143	awt_mask_item *existing = lookup(name);
144	if (existing) return GBS_global_string("ID '%s' already exists", name.c_str());
145
146	id[name] = item;
147	return NULp;
148	}
149	GB_ERROR awt_input_mask_id_list::remove(const string& name) {
150	if (!lookup(name)) return GBS_global_string("ID '%s' does not exist", name.c_str());
151	id.erase(name);
152	return NULp;
153	}
154
155	awt_mask_item::awt_mask_item(awt_input_mask_global& global_)
156	: global(global_)
157	{}
158
159	awt_mask_item::~awt_mask_item() {
160	awt_assert(!has_name()); // you forgot to call remove_name()
161	}
162
163	GB_ERROR awt_mask_item::set_name(const string& name_, bool is_global) {
164	GB_ERROR error = NULp;
165	if (has_name()) {
166	error = GBS_global_string("Element already has name (%s)", get_name().c_str());
167	}
168	else {
169	name = new string(name_);
170	if (is_global) {
171	if (!mask_global().has_global_id(*name)) { // do not add if variable already defined elsewhere
172	error = mask_global().add_global_id(*name, this);
173	}
174	}
175	else {
176	error = mask_global().add_local_id(*name, this);
177	}
178	}
179	return error;
180	}
181
182	GB_ERROR awt_mask_item::remove_name() {
183	GB_ERROR error = NULp;
184	if (has_name()) {
185	error = mask_global().remove_id(*name);
186	name.setNull();
187	}
188	return error;
189	}
190
191	awt_mask_awar_item::awt_mask_awar_item(awt_input_mask_global& global_, const string& awar_base, const string& default_value, bool saved_with_properties)
192	: awt_mask_item(global_)
193	{
194	const char *root_name;
195
196	if (saved_with_properties) root_name = "/input_masks";
197	else root_name = "/tmp/input_masks"; // awars starting with /tmp are not saved
198
199	awarName = GBS_global_string("%s/%s", root_name, awar_base.c_str());
200	#if defined(DEBUG)
201	printf("awarName='%s'\n", awarName.c_str());
202	#endif // DEBUG
203	mask_global().get_root()->awar_string(awarName.c_str(), default_value.c_str()); // create the awar
204	add_awarItem_callbacks();
205	}
206
207	void awt_mask_awar_item::add_awarItem_callbacks() {
208	AW_awar *var = awar();
209	awt_assert(var);
210	if (var) var->add_callback(makeRootCallback(awar_changed_cb, this));
211	}
212	void awt_mask_awar_item::remove_awarItem_callbacks() {
213	AW_awar *var = awar();
214	awt_assert(var);
215	if (var) var->remove_callback(makeRootCallback(awar_changed_cb, this));
216	}
217
218	awt_variable::awt_variable(awt_input_mask_global& global_, const string& id, bool is_global_, const string& default_value, GB_ERROR& error) :
219	awt_mask_awar_item(global_, generate_baseName(global_, id, is_global_), default_value, true),
220	is_global(is_global_)
221	{
222	error = set_name(id, is_global);
223	}
224
225	awt_variable::~awt_variable() {}
226
227	string awt_script::get_value() const {
228	string result;
229	AW_root *root = mask_global().get_root();
230	const awt_item_type_selector *selector = mask_global().get_selector();
231	GBDATA *gb_main = mask_global().get_gb_main();
232	GBDATA *gbd = selector->current(root, gb_main);
233
234	if (gbd) {
235	char *species_name = root->awar(selector->get_self_awar())->read_string();
236	GB_transaction tscope(gb_main);
237
238	char *val = GB_command_interpreter_in_env(species_name, script.c_str(), GBL_maybe_itemless_call_env(gb_main, gbd));
239	if (!val) {
240	aw_message(GB_await_error());
241	result = "<error>";
242	}
243	else {
244	result = val;
245	free(val);
246	}
247	free(species_name);
248	}
249	else {
250	result = "<undefined>";
251	}
252
253
254	return result;
255	}
256
257	GB_ERROR awt_script::set_value(const string& /* new_value */) {
258	return GBS_global_string("You cannot assign a value to script '%s'", has_name() ? get_name().c_str() : "<unnamed>");
259	}
260
261	GB_ERROR awt_linked_to_item::add_db_callbacks() {
262	GB_ERROR error = NULp;
263	if (gb_item) error = GB_add_callback(gb_item, GB_CB_CHANGED_OR_DELETED, makeDatabaseCallback(item_changed_cb, this));
264	return error;
265	}
266
267	void awt_linked_to_item::remove_db_callbacks() {
268	if (!GB_inside_callback(gb_item, GB_CB_DELETE)) {
269	GB_remove_callback(gb_item, GB_CB_CHANGED_OR_DELETED, makeDatabaseCallback(item_changed_cb, this));
270	}
271	}
272
273	awt_script_viewport::awt_script_viewport(awt_input_mask_global& global_, const awt_script *script_, const string& label_, long field_width_) :
274	awt_viewport(global_, generate_baseName(global_), "", false, label_),
275	script(script_),
276	field_width(field_width_)
277	{}
278
279	awt_script_viewport::~awt_script_viewport() {
280	unlink();
281	}
282
283	GB_ERROR awt_script_viewport::link_to(GBDATA *gb_new_item) {
284	GB_ERROR error = NULp;
285	GB_transaction ta(mask_global().get_gb_main());
286
287	remove_awarItem_callbacks(); // unbind awar callbacks temporarily
288
289	if (item()) {
290	remove_db_callbacks(); // ignore result (if handled db-entry was deleted, it returns an error)
291	set_item(NULp);
292	}
293
294	if (gb_new_item) {
295	set_item(gb_new_item);
296	db_changed();
297	error = add_db_callbacks();
298	}
299
300	add_awarItem_callbacks(); // rebind awar callbacks
301
302	return error;
303	}
304
305	void awt_script_viewport::build_widget(AW_window *aws) {
306	const string& lab = get_label();
307	if (lab.length()) aws->label(lab.c_str());
308
309	aws->create_input_field(awar_name().c_str(), field_width);
310	}
311
312	void awt_script_viewport::db_changed() {
313	awt_assert(script);
314	string current_value = script->get_value();
315	GB_ERROR error = awt_mask_awar_item::set_value(current_value);
316
317	if (error) aw_message(error);
318	}
319
320	void awt_script_viewport::awar_changed() {
321	aw_message("It makes no sense to change the result of a script");
322	}
323
324	GB_ERROR awt_input_handler::add_db_callbacks() {
325	GB_ERROR error = awt_linked_to_item::add_db_callbacks();
326	if (item() && gbd) error = GB_add_callback(gbd, GB_CB_CHANGED_OR_DELETED, makeDatabaseCallback(field_changed_cb, this));
327	return error;
328	}
329	void awt_input_handler::remove_db_callbacks() {
330	awt_linked_to_item::remove_db_callbacks();
331	if (item() && gbd && !GB_inside_callback(gbd, GB_CB_DELETE)) {
332	GB_remove_callback(gbd, GB_CB_CHANGED_OR_DELETED, makeDatabaseCallback(field_changed_cb, this));
333	}
334	}
335
336	awt_input_handler::awt_input_handler(awt_input_mask_global& global_, const string& child_path_, GB_TYPES type_, const string& label_) :
337	awt_viewport(global_, generate_baseName(global_, child_path_), "", false, label_),
338	gbd(NULp),
339	child_path(child_path_),
340	db_type(type_),
341	in_destructor(false)
342	{}
343
344	awt_input_handler::~awt_input_handler() {
345	in_destructor = true;
346	unlink();
347	}
348
349	GB_ERROR awt_input_handler::link_to(GBDATA *gb_new_item) {
350	GB_ERROR error = NULp;
351	GB_transaction ta(mask_global().get_gb_main());
352
353	remove_awarItem_callbacks(); // unbind awar callbacks temporarily
354
355	if (item()) {
356	remove_db_callbacks(); // ignore result (if handled db-entry was deleted, it returns an error)
357	set_item(NULp);
358	gbd = NULp;
359	}
360	else {
361	awt_assert(!gbd);
362	}
363
364	if (!gb_new_item && !in_destructor) { // crashes if we are in ~awt_input_handler
365	db_changed();
366	}
367
368	if (!error && gb_new_item) {
369	set_item(gb_new_item);
370	gbd = GB_search(item(), child_path.c_str(), GB_FIND);
371
372	db_changed(); // synchronize AWAR with DB-entry
373
374	error = add_db_callbacks();
375	}
376
377	add_awarItem_callbacks(); // rebind awar callbacks
378
379	return error;
380	}
381
382	void awt_string_handler::awar_changed() {
383	GBDATA *gbdata = data();
384	GBDATA *gb_main = mask_global().get_gb_main();
385	bool relink_me = false;
386	GB_ERROR error = NULp;
387
388	GB_push_transaction(gb_main);
389
390	if (!mask_global().edit_allowed()) error = "Editing is disabled. Check the 'Enable edit' switch!";
391
392	if (!error && !gbdata) {
393	const char *child = get_child_path().c_str();
394	const char *keypath = mask_global().get_selector()->getKeyPath();
395
396	if (item()) {
397	gbdata = GB_search(item(), child, GB_FIND);
398
399	if (!gbdata) {
400	GB_TYPES found_typ = GBT_get_type_of_changekey(gb_main, child, keypath);
401	if (found_typ != GB_NONE) set_type(found_typ); // fix type if different
402
403	gbdata = GB_search(item(), child, type()); // here new items are created
404	if (found_typ == GB_NONE) GBT_add_new_changekey_to_keypath(gb_main, child, type(), keypath);
405	relink_me = true; // @@@ only if child was created!!
406	}
407	}
408	else {
409	mask_global().no_item_selected();
410	aw_message(GBS_global_string("This had no effect, because no %s is selected",
411	awt_itemtype_names[mask_global().get_itemtype()]));
412	}
413	}
414
415	if (!error && gbdata) {
416	char *content = awar()->read_string();
417	GB_TYPES found_typ = GB_read_type(gbdata);
418	if (found_typ != type()) set_type(found_typ); // fix type if different
419
420	error = GB_write_autoconv_string(gbdata, awar2db(content).c_str());
421
422	free(content);
423	}
424
425	if (error) {
426	aw_message(error);
427	GB_abort_transaction(gb_main);
428	db_changed(); // write back old value
429	}
430	else {
431	GB_pop_transaction(gb_main);
432	}
433
434	if (relink_me) relink();
435	}
436
437	void awt_string_handler::db_changed() {
438	GBDATA *gbdata = data();
439	if (gbdata) { // gbdata may be zero, if field does not exist
440	GB_transaction ta(mask_global().get_gb_main());
441	char *content = GB_read_as_string(gbdata);
442	awar()->write_string(db2awar(content).c_str());
443	free(content);
444	}
445	else {
446	awar()->write_string(default_value.c_str());
447	}
448	}
449
450	// ----------------
451	// Widgets
452
453	void awt_input_field::build_widget(AW_window *aws) {
454	const string& lab = get_label();
455	if (lab.length()) aws->label(lab.c_str());
456
457	aws->create_input_field(awar_name().c_str(), field_width);
458	}
459
460	void awt_text_viewport::build_widget(AW_window *aws) {
461	const string& lab = get_label();
462	if (lab.length()) aws->label(lab.c_str());
463
464	aws->create_input_field(awar_name().c_str(), field_width);
465	}
466
467	void awt_check_box::build_widget(AW_window *aws) {
468	const string& lab = get_label();
469	if (lab.length()) aws->label(lab.c_str());
470
471	aws->create_toggle(awar_name().c_str());
472	}
473	void awt_radio_button::build_widget(AW_window *aws) {
474	const string& lab = get_label();
475	if (lab.length()) aws->label(lab.c_str());
476
477	aws->create_toggle_field(awar_name().c_str(), vertical ? 0 : 1);
478
479	vector<string>::const_iterator b = buttons.begin();
480	vector<string>::const_iterator v = values.begin();
481	int pos = 0;
482
483	for (; b != buttons.end() && v != values.end(); ++b, ++v, ++pos) {
484	void (AW_window::ins_togg)(const char, const char, const char);
485
486	if (pos == default_position) ins_togg = &AW_window::insert_default_toggle;
487	else ins_togg = &AW_window::insert_toggle;
488
489	(aws->ins_togg)(b->c_str(), mask_global().hotkey(b), b->c_str());
490	}
491
492	awt_assert(b == buttons.end() && v == values.end());
493
494	aws->update_toggle_field();
495	}
496
497	// -----------------------------------------
498	// Special AWAR <-> DB translations
499
500	string awt_check_box::awar2db(const string& awar_content) const {
501	GB_TYPES typ = type();
502
503	if (awar_content == "yes") {
504	if (typ == GB_STRING) return "yes";
505	return "1";
506	}
507	else {
508	if (typ == GB_STRING) return "no";
509	return "0";
510	}
511	}
512	string awt_check_box::db2awar(const string& db_content) const {
513	if (db_content == "yes" \|\| db_content == "1") return "yes";
514	if (db_content == "no" \|\| db_content == "0") return "no";
515	return atoi(db_content.c_str()) ? "yes" : "no";
516	}
517
518	string awt_radio_button::awar2db(const string& awar_content) const {
519	vector<string>::const_iterator b = buttons.begin();
520	vector<string>::const_iterator v = values.begin();
521	for (; b != buttons.end() && v != values.end(); ++b, ++v) {
522	if (*b == awar_content) {
523	return *v;
524	}
525	}
526
527	return string("Unknown awar_content '")+awar_content+"'";
528	}
529
530	string awt_radio_button::db2awar(const string& db_content) const {
531	vector<string>::const_iterator b = buttons.begin();
532	vector<string>::const_iterator v = values.begin();
533	for (; b != buttons.end() && v != values.end(); ++b, ++v) {
534	if (*v == db_content) {
535	return *b;
536	}
537	}
538	return buttons[default_position];
539	}
540
541	string awt_numeric_input_field::awar2db(const string& awar_content) const {
542	long val = strtol(awar_content.c_str(), NULp, 10);
543
544	// correct numeric value :
545	if (val<min) val = min;
546	if (val>max) val = max;
547
548	return GBS_global_string("%li", val);
549	}
550
551	// -----------------------------------------
552	// Routines to parse user-mask file
553
554	static GB_ERROR readLine(FILE *in, string& line, size_t& lineNo) {
555	const int BUFSIZE = 8000;
556	char buffer[BUFSIZE];
557	char *res = fgets(&buffer[0], BUFSIZE-1, in);
558	GB_ERROR error = NULp;
559
560	if (int err = ferror(in)) {
561	error = strerror(err);
562	}
563	else if (!res) {
564	error = "Unexpected end of file (@MASK_BEGIN or @MASK_END missing?)";
565	}
566	else {
567	awt_assert(res == buffer);
568	res += strlen(buffer);
569	if (res>buffer) {
570	size_t last = res-buffer;
571	if (buffer[last-1] == '\n') {
572	buffer[last-1] = 0;
573	}
574	}
575	line = buffer;
576	lineNo++; // increment lineNo
577
578	size_t last = line.find_last_not_of(" \t");
579	if (last != string::npos && line[last] == '\\') {
580	string next;
581	error = readLine(in, next, lineNo);
582	line = line.substr(0, last)+' '+next;
583	}
584	}
585
586	if (error) line = "";
587
588	return error;
589	}
590
591	inline size_t next_non_white(const string& line, size_t start) {
592	if (start == string::npos) return string::npos;
593	return line.find_first_not_of(" \t", start);
594	}
595
596	static bool was_last_parameter = false;
597
598	inline size_t eat_para_separator(const string& line, size_t start, GB_ERROR& error) {
599	size_t para_sep = next_non_white(line, start);
600
601	if (para_sep == string::npos) {
602	error = "',' or ')' expected after parameter";
603	}
604	else {
605	switch (line[para_sep]) {
606	case ')':
607	was_last_parameter = true;
608	break;
609
610	case ',':
611	break;
612
613	default:
614	error = "',' or ')' expected after parameter";
615	break;
616	}
617	if (!error) para_sep++;
618	}
619
620	return para_sep;
621	}
622
623	static void check_last_parameter(GB_ERROR& error, const string& command) {
624	if (!error && !was_last_parameter) {
625	error = GBS_global_string("Superfluous arguments to '%s'", command.c_str());
626	}
627	}
628
629	static void check_no_parameter(const string& line, size_t& scan_pos, GB_ERROR& error, const string& command) {
630	size_t start = next_non_white(line, scan_pos);
631	scan_pos = start;
632
633	if (start == string::npos) {
634	error = "')' expected";
635	}
636	else if (line[start] != ')') {
637	was_last_parameter = false;
638	check_last_parameter(error, command);
639	}
640	else { // ok
641	scan_pos++;
642	}
643	}
644
645	inline GB_ERROR decode_escapes(string& s) {
646	string::iterator f = s.begin();
647	string::iterator t = s.begin();
648
649	for (; f != s.end(); ++f, ++t) {
650	if (*f == '\\') {
651	++f;
652	if (f == s.end()) return GBS_global_string("Trailing \\ in '%s'", s.c_str());
653	}
654	t = f;
655	}
656
657	s.erase(t, f);
658
659	return NULp;
660	}
661
662	static string check_data_path(const string& path, GB_ERROR& error) {
663	if (!error) error = GB_check_hkey(path.c_str());
664	return path;
665	}
666
667	static string scan_string_parameter(const string& line, size_t& scan_pos, GB_ERROR& error, bool allow_escaped = false) {
668	string result;
669	size_t open_quote = next_non_white(line, scan_pos);
670	scan_pos = open_quote;
671
672	if (open_quote == string::npos \|\| line[open_quote] != '\"') {
673	error = "string parameter expected";
674	}
675	else {
676	size_t close_quote = string::npos;
677
678	if (allow_escaped) {
679	size_t start = open_quote+1;
680
681	while (1) {
682	close_quote = line.find_first_of("\\\"", start);
683
684	if (close_quote == string::npos) break; // error
685	if (line[close_quote] == '\"') break; // found closing quote
686
687	if (line[close_quote] == '\\') { // escape next char
688	close_quote++;
689	}
690	start = close_quote+1;
691	}
692	}
693	else {
694	close_quote = line.find('\"', open_quote+1);
695	}
696
697	if (close_quote == string::npos) {
698	error = "string parameter missing closing '\"'";
699	}
700	else {
701	result = line.substr(open_quote+1, close_quote-open_quote-1);
702	if (allow_escaped) {
703	awt_assert(!error);
704	error = decode_escapes(result);
705	}
706	if (!error) scan_pos = eat_para_separator(line, close_quote+1, error);
707	}
708	}
709
710	return result;
711	}
712
713	static string list_keywords(const char **allowed_keywords) {
714	string result;
715	for (int i = 0; allowed_keywords[i]; ++i) {
716	if (i) {
717	if (allowed_keywords[i+1]) result += ", ";
718	else result += " or ";
719	}
720	result += allowed_keywords[i];
721	}
722	return result;
723	}
724
725	inline int isKeyword(const char current, const char keyword) {
726	int pos = 0;
727	for (; keyword[pos]; ++pos) {
728	if (!current[pos] \|\| std::tolower(current[pos]) != std::tolower(keyword[pos])) {
729	return 0;
730	}
731	}
732	return pos;
733	}
734
735	static int scan_keyword_parameter(const string& line, size_t& scan_pos, GB_ERROR& error, const char **allowed_keywords) {
736	// return index of keyword (or -1)
737	// allowed_keywords has to be 0-terminated
738	int result = -1;
739	size_t start = next_non_white(line, scan_pos);
740	scan_pos = start;
741
742	awt_assert(!error);
743
744	if (start == string::npos) {
745	EXPECTED :
746	string keywords = list_keywords(allowed_keywords);
747	error = GBS_global_string("%s expected", keywords.c_str());
748	}
749	else {
750	const char *current = line.c_str()+start;
751
752	int i = 0;
753	for (; allowed_keywords[i]; ++i) {
754	int found_keyword_size = isKeyword(current, allowed_keywords[i]);
755	if (found_keyword_size) {
756	result = i;
757	scan_pos += found_keyword_size;
758	break;
759	}
760	}
761	if (!allowed_keywords[i]) goto EXPECTED;
762	awt_assert(!error);
763	scan_pos = eat_para_separator(line, scan_pos, error);
764	}
765	return result;
766	}
767
768	static void scan_string_or_keyword_parameter(const string& line, size_t& scan_pos, GB_ERROR& error,
769	string& string_para, int& keyword_index, // result parameters
770	const char **allowed_keywords) {
771	// if keyword_index != -1 -> keyword found
772	// == -1 -> string_para contains string-parameter
773
774	awt_assert(!error);
775
776	string_para = scan_string_parameter(line, scan_pos, error);
777	if (!error) {
778	keyword_index = -1;
779	}
780	else { // no string
781	error = NULp; // ignore error - test for keywords
782	keyword_index = scan_keyword_parameter(line, scan_pos, error, allowed_keywords);
783	if (keyword_index == -1) { // no keyword
784	error = GBS_global_string("string parameter or %s", error);
785	}
786	}
787	}
788
789	static long scan_long_parameter(const string& line, size_t& scan_pos, GB_ERROR& error) {
790	int result = 0;
791	size_t start = next_non_white(line, scan_pos);
792	bool neg = false;
793
794	awt_assert(!error);
795
796	while (start != string::npos) {
797	char c = line[start];
798	if (c != '+' && c != '-') break;
799
800	start = next_non_white(line, start+1);
801	if (c == '-') neg = !neg;
802	continue;
803	}
804
805	if (start == string::npos \|\| !isdigit(line[start])) {
806	scan_pos = start;
807	error = "digits (or+-) expected";
808	}
809	else {
810	size_t end = line.find_first_not_of("0123456789", start);
811	scan_pos = eat_para_separator(line, end, error);
812	if (!error) {
813	awt_assert(end != string::npos);
814	result = atoi(line.substr(start, end-start+1).c_str());
815	}
816	}
817
818	return neg ? -result : result;
819	}
820	static long scan_long_parameter(const string& line, size_t& scan_pos, GB_ERROR& error, long min, long max) {
821	// with range-check
822	awt_assert(!error);
823	size_t old_scan_pos = scan_pos;
824	long result = scan_long_parameter(line, scan_pos, error);
825	if (!error) {
826	if (result<min \|\| result>max) {
827	scan_pos = old_scan_pos;
828	error = GBS_global_string("value %li is outside allowed range (%li-%li)", result, min, max);
829	}
830	}
831	return result;
832	}
833
834	static long scan_optional_parameter(const string& line, size_t& scan_pos, GB_ERROR& error, long if_empty) {
835	awt_assert(!error);
836	size_t old_scan_pos = scan_pos;
837	long result = scan_long_parameter(line, scan_pos, error);
838	if (error) {
839	error = NULp; // ignore and test for empty parameter
840	scan_pos = old_scan_pos;
841	scan_pos = eat_para_separator(line, scan_pos, error);
842
843	if (error) {
844	error = "expected number or empty parameter";
845	scan_pos = old_scan_pos;
846	}
847	else {
848	result = if_empty;
849	}
850	}
851	return result;
852	}
853
854	static int scan_flag_parameter(const string& line, size_t& scan_pos, GB_ERROR& error, const string& allowed_flags) {
855	// return 0..n-1 ( = position in 'allowed_flags')
856	// or error is set
857	awt_assert(!error);
858	int result = 0;
859	size_t start = next_non_white(line, scan_pos);
860	scan_pos = start;
861
862	if (start == string::npos) {
863	error = GBS_global_string("One of '%s' expected", allowed_flags.c_str());
864	}
865	else {
866	char found = line[start];
867	char upper_found = std::toupper(found);
868	size_t pos = allowed_flags.find(upper_found);
869
870	if (pos != string::npos) {
871	result = pos;
872	scan_pos = eat_para_separator(line, start+1, error);
873	}
874	else {
875	error = GBS_global_string("One of '%s' expected (found '%c')", allowed_flags.c_str(), found);
876	}
877	}
878	return result;
879	}
880	static bool scan_bool_parameter(const string& line, size_t& scan_pos, GB_ERROR& error) {
881	awt_assert(!error);
882	size_t old_scan_pos = scan_pos;
883	long result = scan_long_parameter(line, scan_pos, error);
884
885	if (!error && (result != 0) && (result != 1)) {
886	scan_pos = old_scan_pos;
887	error = "'0' or '1' expected";
888	}
889	return result != 0;
890	}
891
892	static string scan_identifier(const string& line, size_t& scan_pos, GB_ERROR& error) {
893	string id;
894	size_t start = next_non_white(line, scan_pos);
895	if (start == string::npos) {
896	error = "identifier expected";
897	}
898	else {
899	size_t end = start;
900	while (end<line.length()) {
901	char c = line[end];
902	if (!(isalnum(c) \|\| c == '_')) break;
903	++end;
904	}
905	id = line.substr(start, end-start);
906	scan_pos = eat_para_separator(line, end, error);
907	}
908	return id;
909	}
910
911	inline const char *inputMaskDir(bool local) {
912	if (local) {
913	static char *local_mask_dir;
914	if (!local_mask_dir) local_mask_dir = ARB_strdup(GB_path_in_arbprop("inputMasks"));
915	return local_mask_dir;
916	}
917
918	static char *global_mask_dir;
919	if (!global_mask_dir) global_mask_dir = ARB_strdup(GB_path_in_ARBLIB("inputMasks"));
920	return global_mask_dir;
921	}
922
923	inline string inputMaskFullname(const string& mask_name, bool local) {
924	const char *dir = inputMaskDir(local);
925	return string(dir)+'/'+mask_name;
926	}
927
928	#define ARB_INPUT_MASK_ID "ARB-Input-Mask"
929
930	static awt_input_mask_descriptor *quick_scan_input_mask(const string& mask_name, const string& filename, bool local) {
931	awt_input_mask_descriptor *res = NULp;
932	FILE *in = fopen(filename.c_str(), "rt");
933	GB_ERROR error = NULp;
934
935	if (in) {
936	string line;
937	size_t lineNo = 0;
938	error = readLine(in, line, lineNo);
939
940	if (!error && line == ARB_INPUT_MASK_ID) {
941	bool done = false;
942	int hidden = 0; // 0 = 'not hidden'
943	string title;
944	string itemtype;
945
946	while (!feof(in)) {
947	error = readLine(in, line, lineNo);
948	if (error) break;
949
950	if (line[0] == '#') continue; // ignore comments
951	if (line == "@MASK_BEGIN") { done = true; break; }
952
953	size_t at = line.find('@');
954	size_t eq = line.find('=', at);
955
956	if (at == string::npos \|\| eq == string::npos) {
957	continue; // ignore all other lines
958	}
959	else {
960	string parameter = line.substr(at+1, eq-at-1);
961	string value = line.substr(eq+1);
962
963	if (parameter == "ITEMTYPE") itemtype = value;
964	else if (parameter == "TITLE") title = value;
965	else if (parameter == "HIDE") hidden = atoi(value.c_str());
966	}
967	}
968
969	if (!error && done) {
970	if (itemtype == "") {
971	error = "No itemtype defined";
972	}
973	else {
974	if (title == "") title = mask_name;
975	res = new awt_input_mask_descriptor(title.c_str(), mask_name.c_str(), itemtype.c_str(), local, hidden);
976	}
977	}
978	}
979	fclose(in);
980	}
981
982	if (error) {
983	aw_message(GBS_global_string("%s (while scanning user-mask '%s')", error, filename.c_str()));
984	}
985
986	#if defined(DEBUG)
987	printf("Skipping '%s' (not a input mask)\n", filename.c_str());
988	#endif // DEBUG
989	return res;
990	}
991
992	static void AWT_edit_input_mask(AW_window , const string mask_name, bool local) {
993	string fullmask = inputMaskFullname(*mask_name, local);
994	AW_edit(fullmask.c_str()); // @@@ add callback and automatically reload input mask
995	}
996
997	// ---------------------------------
998	// input mask container :
999
1000	typedef SmartPtr<awt_input_mask> awt_input_mask_ptr;
1001	typedef map<string, awt_input_mask_ptr> InputMaskList; // contains all active masks
1002	static InputMaskList input_mask_list;
1003
1004	static void awt_input_mask_awar_changed_cb(AW_root, awt_input_mask mask) {
1005	mask->relink();
1006	}
1007	static void link_mask_to_database(awt_input_mask_ptr mask) {
1008	awt_input_mask_global& global = mask->mask_global();
1009	const awt_item_type_selector *sel = global.get_selector();
1010	AW_root *root = global.get_root();
1011
1012	sel->add_awar_callbacks(root, makeRootCallback(awt_input_mask_awar_changed_cb, &*mask));
1013	awt_input_mask_awar_changed_cb(root, &*mask);
1014	}
1015	static void unlink_mask_from_database(awt_input_mask_ptr mask) {
1016	awt_input_mask_global& global = mask->mask_global();
1017	const awt_item_type_selector *sel = global.get_selector();
1018	AW_root *root = global.get_root();
1019
1020	sel->remove_awar_callbacks(root, makeRootCallback(awt_input_mask_awar_changed_cb, &*mask));
1021	}
1022
1023	inline bool isInternalMaskName(const string& s) {
1024	return s[0] == '0' \|\| s[0] == '1';
1025	}
1026
1027	static void awt_open_input_mask(AW_window aww, const string internal_mask_name, const string *mask_to_open, bool reload, bool hide_current) {
1028	InputMaskList::iterator mask_iter = input_mask_list.find(*internal_mask_name);
1029
1030	awt_assert(internal_mask_name && isInternalMaskName(*internal_mask_name));
1031	awt_assert(mask_to_open && isInternalMaskName(*mask_to_open));
1032
1033	if (mask_iter != input_mask_list.end()) {
1034	awt_input_mask_ptr mask = mask_iter->second;
1035	awt_input_mask_global& global = mask->mask_global();
1036
1037	printf("aww=%p root=%p ; global=%p root=%p\n", aww, aww->get_root(), &global, global.get_root());
1038	awt_assert(aww->get_root() == global.get_root());
1039
1040	if (reload) mask->set_reload_on_reinit(true);
1041	if (hide_current) mask->hide();
1042	// @@@ hier sollte nicht der Selector der alten Maske verwendet werden, sondern anhand des Typs ein
1043	// Selector ausgewaehlt werden. Dazu muessen jedoch alle Selectoren registriert werden.
1044	GB_ERROR error = AWT_initialize_input_mask(global.get_root(), global.get_gb_main(), global.get_selector(), mask_to_open->c_str(), global.is_local_mask());
1045	// CAUTION: AWT_initialize_input_mask invalidates mask and mask_iter
1046	if (error && hide_current) {
1047	mask_iter = input_mask_list.find(*internal_mask_name);
1048	awt_assert(mask_iter != input_mask_list.end());
1049	mask_iter->second->show();
1050	}
1051	}
1052	#if defined(DEBUG)
1053	else {
1054	string mask_name = internal_mask_name->substr(1);
1055	printf("'%s' (no such mask in input_mask_list)\n", mask_name.c_str());
1056	awt_assert(0);
1057	}
1058	#endif // DEBUG
1059	}
1060
1061	static void AWT_reload_input_mask(AW_window aww, const string internal_mask_name) {
1062	awt_open_input_mask(aww, internal_mask_name, internal_mask_name, true, true);
1063	}
1064	static void AWT_open_input_mask(AW_window aww, const string internal_mask_name, const string *mask_to_open) {
1065	awt_open_input_mask(aww, internal_mask_name, mask_to_open, false, false);
1066	}
1067	static void AWT_change_input_mask(AW_window aww, const string internal_mask_name, const string *mask_to_open) {
1068	awt_open_input_mask(aww, internal_mask_name, mask_to_open, false, true);
1069	}
1070
1071	// ------------------------------
1072	// class awt_mask_action
1073
1074	class awt_mask_action {
1075	// something that is performed i.e. when user pressed a mask button
1076	// used as callback parameter
1077	private:
1078	virtual GB_ERROR action() = 0;
1079	protected:
1080	awt_input_mask_ptr mask;
1081	public:
1082	awt_mask_action(awt_input_mask_ptr mask_) : mask(mask_) {}
1083	virtual ~awt_mask_action() {}
1084
1085	void perform_action() {
1086	GB_ERROR error = action();
1087	if (error) aw_message(error);
1088	}
1089	};
1090
1091
1092	// ------------------------------------------------------
1093	// class awt_assignment : public awt_mask_action
1094
1095	class awt_assignment : public awt_mask_action {
1096	private:
1097	string id_dest;
1098	string id_source;
1099
1100	GB_ERROR action() OVERRIDE {
1101	GB_ERROR error = NULp;
1102	const awt_mask_item *item_source = mask->mask_global().get_identified_item(id_source, error);
1103	awt_mask_item *item_dest = mask->mask_global().get_identified_item(id_dest, error);
1104
1105	if (!error) error = item_dest->set_value(item_source->get_value());
1106
1107	return error;
1108	}
1109	public:
1110	awt_assignment(awt_input_mask_ptr mask_, const string& id_dest_, const string& id_source_) :
1111	awt_mask_action(mask_),
1112	id_dest(id_dest_),
1113	id_source(id_source_)
1114	{}
1115	~awt_assignment() OVERRIDE {}
1116	};
1117
1118	static void AWT_input_mask_perform_action(AW_window, awt_mask_action action) {
1119	action->perform_action();
1120	}
1121
1122	static void AWT_input_mask_browse_url(AW_window aww, const string url_aci, const awt_input_mask *mask) {
1123	const awt_input_mask_global& global = mask->mask_global();
1124	const awt_item_type_selector *selector = global.get_selector();
1125
1126	AW_root *root = aww->get_root();
1127	GBDATA *gb_main = global.get_gb_main();
1128	GBDATA *gbd = selector->current(root, gb_main);
1129
1130	if (!gbd) {
1131	aw_message(GBS_global_string("You have to select a %s first", awt_itemtype_names[selector->get_item_type()]));
1132	}
1133	else {
1134	GB_ERROR error = awt_open_ACI_URL_with_item(root, gb_main, gbd, url_aci->c_str());
1135	if (error) aw_message(error);
1136	}
1137	}
1138
1139
1140	// ---------------------------
1141	// User Mask Commands
1142
1143	enum MaskCommand {
1144	CMD_TEXTFIELD,
1145	CMD_NUMFIELD,
1146	CMD_CHECKBOX,
1147	CMD_RADIO,
1148	CMD_OPENMASK,
1149	CMD_CHANGEMASK,
1150	CMD_TEXT,
1151	CMD_SELF,
1152	CMD_WWW,
1153	CMD_NEW_LINE,
1154	CMD_NEW_SECTION,
1155	CMD_ID,
1156	CMD_GLOBAL,
1157	CMD_LOCAL,
1158	CMD_SHOW,
1159	CMD_ASSIGN,
1160	CMD_SCRIPT,
1161
1162	MASK_COMMANDS,
1163	CMD_UNKNOWN = MASK_COMMANDS
1164	};
1165
1166	struct MaskCommandDefinition {
1167	const char *cmd_name;
1168	MaskCommand cmd;
1169	};
1170
1171	static struct MaskCommandDefinition mask_command[MASK_COMMANDS+1] = {
1172	{ "TEXTFIELD", CMD_TEXTFIELD },
1173	{ "NUMFIELD", CMD_NUMFIELD },
1174	{ "CHECKBOX", CMD_CHECKBOX },
1175	{ "RADIO", CMD_RADIO },
1176	{ "OPENMASK", CMD_OPENMASK },
1177	{ "CHANGEMASK", CMD_CHANGEMASK },
1178	{ "TEXT", CMD_TEXT },
1179	{ "SELF", CMD_SELF },
1180	{ "NEW_LINE", CMD_NEW_LINE },
1181	{ "NEW_SECTION", CMD_NEW_SECTION },
1182	{ "WWW", CMD_WWW },
1183	{ "ID", CMD_ID },
1184	{ "GLOBAL", CMD_GLOBAL },
1185	{ "LOCAL", CMD_LOCAL },
1186	{ "SHOW", CMD_SHOW },
1187	{ "ASSIGN", CMD_ASSIGN },
1188	{ "SCRIPT", CMD_SCRIPT },
1189
1190	{ NULp, CMD_UNKNOWN }
1191	};
1192
1193	inline MaskCommand findCommand(const string& cmd_name) {
1194	int mc = 0;
1195
1196	for (; mask_command[mc].cmd != CMD_UNKNOWN; ++mc) {
1197	if (mask_command[mc].cmd_name == cmd_name) {
1198	return mask_command[mc].cmd;
1199	}
1200	}
1201	return CMD_UNKNOWN;
1202	}
1203
1204	static void parse_CMD_RADIO(string& line, size_t& scan_pos, GB_ERROR& error, const string& command,
1205	awt_mask_item_ptr& handler1, awt_mask_item_ptr& handler2, awt_input_mask_global& global)
1206	{
1207	string label, data_path;
1208	int default_position = -1, orientation = -1;
1209	vector<string> buttons;
1210	vector<string> values;
1211	bool allow_edit = false;
1212	int width = -1;
1213	int edit_position = -1;
1214
1215	label = scan_string_parameter(line, scan_pos, error);
1216	if (!error) data_path = check_data_path(scan_string_parameter(line, scan_pos, error), error);
1217	if (!error) default_position = scan_long_parameter(line, scan_pos, error);
1218	if (!error) {
1219	orientation = scan_flag_parameter(line, scan_pos, error, "HVXY");
1220	orientation = orientation&1;
1221	}
1222	while (!error && !was_last_parameter) {
1223	string but = scan_string_parameter(line, scan_pos, error);
1224	string val = "";
1225	if (!error) {
1226	int keyword_index;
1227	const char *allowed_keywords[] = { "ALLOW_EDIT", NULp };
1228	scan_string_or_keyword_parameter(line, scan_pos, error, val, keyword_index, allowed_keywords);
1229
1230	if (!error) {
1231	if (keyword_index != -1) { // found keyword
1232	if (allow_edit) error = "ALLOW_EDIT is allowed only once for each RADIO";
1233
1234	if (!error) width = scan_long_parameter(line, scan_pos, error, MIN_TEXTFIELD_SIZE, MAX_TEXTFIELD_SIZE);
1235	if (!error) val = scan_string_parameter(line, scan_pos, error);
1236
1237	if (!error) {
1238	allow_edit = true;
1239	edit_position = buttons.size()+1; // positions are 1..n
1240	buttons.push_back(but);
1241	values.push_back(val);
1242	}
1243	}
1244	else { // found string
1245	buttons.push_back(but);
1246	values.push_back(val);
1247	}
1248	}
1249	}
1250	}
1251	check_last_parameter(error, command);
1252
1253	if (!error && (buttons.size()<2)) error = "You have to define at least 2 buttons.";
1254
1255	if (!error && allow_edit && edit_position != default_position) {
1256	error = GBS_global_string("Invalid default %i (must be index of ALLOW_EDIT: %i )", default_position, edit_position);
1257	}
1258	if (!error && (default_position<1 \|\| size_t(default_position)>buttons.size())) {
1259	error = GBS_global_string("Invalid default %i (valid: 1..%zu)", default_position, buttons.size());
1260	}
1261
1262	if (!error) {
1263	if (allow_edit) {
1264	// create radio-button + textfield
1265	handler1 = new awt_radio_button(global, data_path, label, default_position-1, orientation, buttons, values);
1266	handler2 = new awt_input_field(global, data_path, "", width, "", GB_STRING);
1267	}
1268	else {
1269	handler1 = new awt_radio_button(global, data_path, label, default_position-1, orientation, buttons, values);
1270	}
1271	}
1272	}
1273
1274	static string find_internal_name(const string& mask_name, bool search_in_local) {
1275	const char *internal_local = NULp;
1276	const char *internal_global = NULp;
1277
1278	for (int id = 0; ; ++id) {
1279	const awt_input_mask_descriptor *descriptor = AWT_look_input_mask(id);
1280	if (!descriptor) break;
1281
1282	const char *internal_name = descriptor->get_internal_maskname();
1283
1284	if (strcmp(internal_name+1, mask_name.c_str()) == 0) {
1285	if (descriptor->is_local_mask()) {
1286	awt_assert(!internal_local);
1287	internal_local = internal_name;
1288	}
1289	else {
1290	awt_assert(!internal_global);
1291	internal_global = internal_name;
1292	}
1293	}
1294	}
1295
1296	return (search_in_local && internal_local) ? internal_local : (internal_global ? internal_global : "");
1297	}
1298
1299	// ----------------------------------
1300	// class awt_marked_checkbox
1301
1302	class awt_marked_checkbox FINAL_TYPE : public awt_viewport, public awt_linked_to_item {
1303	private:
1304
1305	string generate_baseName(awt_input_mask_global& global_) {
1306	return GBS_global_string("%s/marked", global_.get_maskid().c_str());
1307	}
1308
1309	public:
1310	awt_marked_checkbox(awt_input_mask_global& global_, const std::string& label_) :
1311	awt_viewport(global_, generate_baseName(global_), "0", false, label_),
1312	awt_linked_to_item()
1313	{}
1314	~awt_marked_checkbox() OVERRIDE {}
1315
1316	GB_ERROR link_to(GBDATA *gb_new_item) OVERRIDE; // link to a new item
1317	GB_ERROR relink() OVERRIDE { return link_to(mask_global().get_selected_item()); }
1318	void awar_changed() OVERRIDE;
1319	void db_changed() OVERRIDE;
1320	void general_item_change() OVERRIDE { db_changed(); } // called if item was changed (somehow)
1321	void build_widget(AW_window *aws) OVERRIDE; // builds the widget at the current position
1322	};
1323
1324	GB_ERROR awt_marked_checkbox::link_to(GBDATA *gb_new_item) { // link to a new item
1325	GB_ERROR error = NULp;
1326	GB_transaction ta(mask_global().get_gb_main());
1327
1328	remove_awarItem_callbacks(); // unbind awar callbacks temporarily
1329
1330	if (item()) {
1331	remove_db_callbacks(); // ignore result (if handled db-entry was deleted, it returns an error)
1332	set_item(NULp);
1333	}
1334
1335	if (gb_new_item) {
1336	set_item(gb_new_item);
1337	db_changed();
1338	error = add_db_callbacks();
1339	}
1340
1341	add_awarItem_callbacks(); // rebind awar callbacks
1342	return error;
1343	}
1344
1345	void awt_marked_checkbox::awar_changed() { // called when awar changes
1346	if (item()) {
1347	string value = get_value();
1348	bool marked = value == "yes";
1349	GB_transaction ta(mask_global().get_gb_main());
1350	GB_write_flag(item(), marked);
1351	}
1352	else {
1353	mask_global().no_item_selected();
1354	}
1355	}
1356
1357	void awt_marked_checkbox::db_changed() {
1358	if (item()) {
1359	GB_transaction ta(mask_global().get_gb_main());
1360	set_value(GB_read_flag(item()) ? "yes" : "no");
1361	}
1362	}
1363
1364	void awt_marked_checkbox::build_widget(AW_window *aws) { // builds the widget at the current position
1365	const string& lab = get_label();
1366	if (lab.length()) aws->label(lab.c_str());
1367
1368	aws->create_toggle(awar_name().c_str());
1369	}
1370
1371	static GB_ERROR writeDefaultMaskfile(const string& fullname, const string& maskname, const string& itemtypename, bool hidden) {
1372	FILE *out = fopen(fullname.c_str(), "wt");
1373	if (!out) return GBS_global_string("Can't open '%s'", fullname.c_str());
1374
1375	fprintf(out,
1376	"%s\n"
1377	"# New mask '%s'\n\n"
1378	"# What kind of item to edit:\n"
1379	"@ITEMTYPE=%s\n\n"
1380	"# Window title:\n"
1381	"@TITLE=%s\n\n", ARB_INPUT_MASK_ID, maskname.c_str(), itemtypename.c_str(), maskname.c_str());
1382
1383	fprintf(out,
1384	"# Should mask appear in 'User mask' menu\n"
1385	"@HIDE=%i\n\n", int(hidden));
1386
1387	fputs("# Spacing in window:\n"
1388	"@X_SPACING=5\n"
1389	"@Y_SPACING=3\n\n"
1390	"# Show edit/reload button?\n"
1391	"@EDIT=1\n"
1392	"# Show 'edit enable' toggle?\n"
1393	"@EDIT_ENABLE=1\n"
1394	"# Show 'marked' toggle?\n"
1395	"@SHOW_MARKED=1\n"
1396	"\n# ---------------------------\n"
1397	"# The definition of the mask:\n\n"
1398	"@MASK_BEGIN\n\n"
1399	" TEXT(\"You are editing\") SELF()\n"
1400	" NEW_SECTION()\n"
1401	" TEXTFIELD(\"Full name\", \"full_name\", 30)\n\n"
1402	"@MASK_END\n\n", out);
1403
1404	fclose(out);
1405	return NULp;
1406	}
1407
1408	class ID_checker {
1409	bool reloading;
1410	set<string> seen;
1411	set<string> dup;
1412	string curr_id;
1413
1414	bool is_known(const string& id) { return seen.find(id) != seen.end(); }
1415
1416	string makeUnique(string id) {
1417	if (is_known(id)) {
1418	dup.insert(id);
1419	for (int i = 0; ; ++i) {
1420	string undup = GBS_global_string("%s%i", id.c_str(), i);
1421	if (!is_known(undup)) {
1422	id = undup;
1423	break;
1424	}
1425	}
1426	}
1427	seen.insert(id);
1428	return id;
1429	}
1430
1431	public:
1432	ID_checker(bool reloading_)
1433	: reloading(reloading_)
1434	{}
1435
1436	const char fromKey(const char id) {
1437	curr_id = makeUnique(id);
1438	return reloading ? NULp : curr_id.c_str();
1439	}
1440	const char *fromText(const string& anystr) {
1441	SmartCharPtr key = GBS_string_2_key(anystr.c_str());
1442	return fromKey(&*key);
1443	}
1444
1445	bool seenDups() const { return !dup.empty(); }
1446	const char *get_dup_error(const string& maskName) const {
1447	string dupList;
1448	for (set<string>::iterator d = dup.begin(); d != dup.end(); ++d) {
1449	dupList = dupList+" '"+*d+"'";
1450	}
1451	return GBS_global_string("Warning: duplicated IDs seen in '%s':\n"
1452	"%s\n"
1453	"(they need to be unique; change button texts etc. to change them)",
1454	maskName.c_str(), dupList.c_str());
1455	}
1456	};
1457
1458	static awt_input_mask_ptr awt_create_input_mask(AW_root root, GBDATA gb_main, const awt_item_type_selector *sel,
1459	const string& mask_name, bool local, GB_ERROR& error, bool reloading) {
1460	awt_input_mask_ptr mask;
1461
1462	error = NULp;
1463
1464	FILE *in = NULp;
1465	{
1466	string fullfile = inputMaskFullname(mask_name, local);
1467	in = fopen(fullfile.c_str(), "rt");
1468	if (!in) error = GBS_global_string("Can't open '%s'", fullfile.c_str());
1469	}
1470
1471	if (!error) {
1472	bool mask_began = false;
1473	bool mask_ended = false;
1474
1475	// data to be scanned :
1476	string title;
1477	string itemtypename;
1478	int x_spacing = 5;
1479	int y_spacing = 3;
1480	bool edit_reload = false;
1481	bool edit_enable = true;
1482	bool show_marked = true;
1483
1484	string line;
1485	size_t lineNo = 0;
1486	size_t err_pos = 0; // 0 = unknown; string::npos = at end of line; else position+1;
1487
1488	error = readLine(in, line, lineNo);
1489
1490	if (!error && line != ARB_INPUT_MASK_ID) {
1491	error = "'" ARB_INPUT_MASK_ID "' expected";
1492	}
1493
1494	while (!error && !mask_began && !feof(in)) {
1495	error = readLine(in, line, lineNo);
1496	if (error) break;
1497
1498	if (line[0] == '#') continue; // ignore comments
1499
1500	if (line == "@MASK_BEGIN") mask_began = true;
1501	else {
1502	size_t at = line.find('@');
1503	size_t eq = line.find('=', at);
1504
1505	if (at == string::npos \|\| eq == string::npos) {
1506	continue;
1507	}
1508	else {
1509	string parameter = line.substr(at+1, eq-at-1);
1510	string value = line.substr(eq+1);
1511
1512	if (parameter == "ITEMTYPE") itemtypename = value;
1513	else if (parameter == "TITLE") title = value;
1514	else if (parameter == "X_SPACING") x_spacing = atoi(value.c_str());
1515	else if (parameter == "Y_SPACING") y_spacing = atoi(value.c_str());
1516	else if (parameter == "EDIT") edit_reload = atoi(value.c_str()) != 0;
1517	else if (parameter == "EDIT_ENABLE") edit_enable = atoi(value.c_str()) != 0;
1518	else if (parameter == "SHOW_MARKED") show_marked = atoi(value.c_str()) != 0;
1519	else if (parameter == "HIDE") ; // ignore parameter here
1520	else {
1521	error = GBS_global_string("Unknown parameter '%s'", parameter.c_str());
1522	}
1523	}
1524	}
1525	}
1526
1527	if (!error && !mask_began) error = "@MASK_BEGIN expected";
1528
1529	// check data :
1530	if (!error) {
1531	if (title == "") title = string("Untitled (")+mask_name+")";
1532	awt_item_type itemtype = AWT_getItemType(itemtypename);
1533
1534	if (itemtype == AWT_IT_UNKNOWN) error = GBS_global_string("Unknown @ITEMTYPE '%s'", itemtypename.c_str());
1535	if (itemtype != sel->get_item_type()) error = GBS_global_string("Mask is designed for @ITEMTYPE '%s' (current @ITEMTYPE '%s')",
1536	itemtypename.c_str(), awt_itemtype_names[sel->get_item_type()]);
1537
1538	// create mask
1539	if (!error) mask = new awt_input_mask(root, gb_main, mask_name, itemtype, local, sel, edit_enable);
1540	}
1541
1542	// create window
1543	if (!error) {
1544	awt_assert(!mask.isNull());
1545	AW_window_simple*& aws = mask->get_window();
1546	aws = new AW_window_simple;
1547
1548	ID_checker ID(reloading);
1549
1550	{
1551	char *window_id = GBS_global_string_copy("INPUT_MASK_%s", mask->mask_global().get_maskid().c_str()); // create a unique id for each mask
1552	aws->init(root, window_id, title.c_str());
1553	free(window_id);
1554	}
1555
1556	aws->load_xfig(NULp, true);
1557	aws->recalc_size_atShow(AW_RESIZE_DEFAULT); // ignore user size!
1558
1559	aws->auto_space(x_spacing, y_spacing);
1560	aws->at_newline();
1561
1562	aws->callback(AW_POPDOWN); aws->create_button(ID.fromKey("CLOSE"), "CLOSE", "C");
1563	aws->callback(makeHelpCallback("input_mask.hlp")); aws->create_button(ID.fromKey("HELP"), "HELP", "H");
1564
1565	if (edit_reload) {
1566	aws->callback(makeWindowCallback(AWT_edit_input_mask, &mask->mask_global().get_maskname(), mask->mask_global().is_local_mask()));
1567	aws->create_button(NULp, "!EDIT", "E");
1568
1569	aws->callback(makeWindowCallback(AWT_reload_input_mask, &mask->mask_global().get_internal_maskname()));
1570	aws->create_button(NULp, "RELOAD", "R");
1571	}
1572
1573	if (edit_reload && edit_enable && show_marked) aws->at_newline();
1574
1575	if (edit_enable) {
1576	aws->label("Enable edit?");
1577	aws->create_toggle(AWAR_INPUT_MASKS_EDIT_ENABLED);
1578	}
1579
1580	if (show_marked) {
1581	awt_mask_item_ptr handler = new awt_marked_checkbox(mask->mask_global(), "Marked");
1582	mask->add_handler(handler);
1583	if (handler->is_viewport()) handler->to_viewport()->build_widget(aws);
1584
1585	}
1586
1587	aws->at_newline();
1588
1589	vector<int> horizontal_lines; // y-positions of horizontal lines
1590	map<string, size_t> referenced_ids; // all ids that where referenced by the script (size_t contains lineNo of last reference)
1591	map<string, size_t> declared_ids; // all ids that where declared by the script (size_t contains lineNo of declaration)
1592
1593	awt_mask_item_ptr lasthandler;
1594
1595	// read mask itself :
1596	while (!error && !mask_ended && !feof(in)) {
1597	error = readLine(in, line, lineNo);
1598	if (error) break;
1599
1600	if (line.empty()) continue;
1601	if (line[0] == '#') continue;
1602
1603	if (line == "@MASK_END") {
1604	mask_ended = true;
1605	}
1606	else {
1607	PARSE_REST_OF_LINE :
1608	was_last_parameter = false;
1609	size_t start = next_non_white(line, 0);
1610	if (start != string::npos) { // line contains sth
1611	size_t after_command = line.find_first_of(string(" \t("), start);
1612	if (after_command == string::npos) {
1613	string command = line.substr(start);
1614	error = GBS_global_string("arguments missing after '%s'", command.c_str());
1615	}
1616	else {
1617	string command = line.substr(start, after_command-start);
1618	size_t paren_open = line.find('(', after_command);
1619	if (paren_open == string::npos) {
1620	error = GBS_global_string("'(' expected after '%s'", command.c_str());
1621	}
1622	else {
1623	size_t scan_pos = paren_open+1;
1624	awt_mask_item_ptr handler;
1625	awt_mask_item_ptr radio_edit_handler;
1626	MaskCommand cmd = findCommand(command);
1627
1628	// --------------------------------------
1629	// code for different commands :
1630
1631	if (cmd == CMD_TEXTFIELD) {
1632	string label, data_path;
1633	long width = -1;
1634	label = scan_string_parameter(line, scan_pos, error);
1635	if (!error) data_path = check_data_path(scan_string_parameter(line, scan_pos, error), error);
1636	if (!error) width = scan_long_parameter(line, scan_pos, error, MIN_TEXTFIELD_SIZE, MAX_TEXTFIELD_SIZE);
1637	check_last_parameter(error, command);
1638
1639	if (!error) handler = new awt_input_field(mask->mask_global(), data_path, label, width, "", GB_STRING);
1640	}
1641	else if (cmd == CMD_NUMFIELD) {
1642	string label, data_path;
1643	long width = -1;
1644
1645	long min = LONG_MIN;
1646	long max = LONG_MAX;
1647
1648	label = scan_string_parameter(line, scan_pos, error);
1649	if (!error) data_path = check_data_path(scan_string_parameter(line, scan_pos, error), error);
1650	if (!error) width = scan_long_parameter(line, scan_pos, error, MIN_TEXTFIELD_SIZE, MAX_TEXTFIELD_SIZE);
1651	if (!was_last_parameter) {
1652	if (!error) min = scan_optional_parameter(line, scan_pos, error, LONG_MIN);
1653	if (!error) max = scan_optional_parameter(line, scan_pos, error, LONG_MAX);
1654	}
1655	check_last_parameter(error, command);
1656
1657	if (!error) handler = new awt_numeric_input_field(mask->mask_global(), data_path, label, width, 0, min, max);
1658	}
1659	else if (cmd == CMD_CHECKBOX) {
1660	string label, data_path;
1661	bool checked = false;
1662	label = scan_string_parameter(line, scan_pos, error);
1663	if (!error) data_path = check_data_path(scan_string_parameter(line, scan_pos, error), error);
1664	if (!error) checked = scan_bool_parameter(line, scan_pos, error);
1665	check_last_parameter(error, command);
1666
1667	if (!error) handler = new awt_check_box(mask->mask_global(), data_path, label, checked);
1668	}
1669	else if (cmd == CMD_RADIO) {
1670	parse_CMD_RADIO(line, scan_pos, error, command, handler, radio_edit_handler, mask->mask_global());
1671	}
1672	else if (cmd == CMD_SCRIPT) {
1673	string id, script;
1674	id = scan_identifier(line, scan_pos, error);
1675	if (!error) script = scan_string_parameter(line, scan_pos, error, true);
1676	check_last_parameter(error, command);
1677
1678	if (!error) {
1679	handler = new awt_script(mask->mask_global(), script);
1680	error = handler->set_name(id, false);
1681	declared_ids[id] = lineNo;
1682	}
1683	}
1684	else if (cmd == CMD_GLOBAL \|\| cmd == CMD_LOCAL) {
1685	string id, def_value;
1686
1687	id = scan_identifier(line, scan_pos, error);
1688	bool global_exists = mask->mask_global().has_global_id(id);
1689	bool local_exists = mask->mask_global().has_local_id(id);
1690
1691	if ((cmd == CMD_GLOBAL && local_exists) \|\| (cmd == CMD_LOCAL && global_exists)) {
1692	error = GBS_global_string("ID '%s' already declared as %s ID (rename your local id)",
1693	id.c_str(), cmd == CMD_LOCAL ? "global" : "local");
1694	}
1695	else if (cmd == CMD_LOCAL && local_exists) {
1696	error = GBS_global_string("ID '%s' declared twice", id.c_str());
1697	}
1698
1699	if (!error) def_value = scan_string_parameter(line, scan_pos, error);
1700	if (!error) {
1701	if (cmd == CMD_GLOBAL) {
1702	if (!mask->mask_global().has_global_id(id)) { // do not create globals more than once
1703	// and never free them -> so we don't need pointer
1704	new awt_variable(mask->mask_global(), id, true, def_value, error);
1705	}
1706	awt_assert(handler.isNull());
1707	}
1708	else {
1709	handler = new awt_variable(mask->mask_global(), id, false, def_value, error);
1710	}
1711	declared_ids[id] = lineNo;
1712	}
1713	}
1714	else if (cmd == CMD_ID) {
1715	string id = scan_identifier(line, scan_pos, error);
1716	check_last_parameter(error, command);
1717
1718	if (!error) {
1719	if (lasthandler.isNull()) {
1720	error = "ID() may only be used BEHIND another element";
1721	}
1722	else {
1723	error = lasthandler->set_name(id, false);
1724	declared_ids[id] = lineNo;
1725	}
1726	}
1727	}
1728	else if (cmd == CMD_SHOW) {
1729	string label, id;
1730	long width = -1;
1731	awt_mask_item *item = NULp;
1732
1733	label = scan_string_parameter(line, scan_pos, error);
1734	if (!error) id = scan_identifier(line, scan_pos, error);
1735	if (!error) item = (awt_mask_item*)mask->mask_global().get_identified_item(id, error);
1736	if (!error) width = scan_long_parameter(line, scan_pos, error, MIN_TEXTFIELD_SIZE, MAX_TEXTFIELD_SIZE);
1737	check_last_parameter(error, command);
1738
1739	if (!error) {
1740	awt_mask_awar_item awar_item = dynamic_cast<awt_mask_awar_item>(item);
1741
1742	if (awar_item) { // item has an awar -> create a viewport using that awar
1743	handler = new awt_text_viewport(awar_item, label, width);
1744	}
1745	else { // item has no awar -> test if it's a script
1746	awt_script script = dynamic_cast<awt_script>(item);
1747	if (script) handler = new awt_script_viewport(mask->mask_global(), script, label, width);
1748	else error = "SHOW cannot be used on this ID-type";
1749	}
1750
1751	referenced_ids[id] = lineNo;
1752	}
1753	}
1754	else if (cmd == CMD_OPENMASK \|\| cmd == CMD_CHANGEMASK) {
1755	string label, mask_to_start;
1756	label = scan_string_parameter(line, scan_pos, error);
1757	if (!error) mask_to_start = scan_string_parameter(line, scan_pos, error);
1758	check_last_parameter(error, command);
1759
1760	if (!error) {
1761	string mask_to_start_internal = find_internal_name(mask_to_start, local);
1762
1763	if (mask_to_start_internal.length() == 0) {
1764	error = "Can't detect which mask to load";
1765	}
1766	else {
1767	const char *key = ID.fromText(label);
1768
1769	string *const internal_mask_name = new string(mask->mask_global().get_internal_maskname());
1770	string *const mask_to_open = new string(mask_to_start_internal);
1771
1772	awt_assert(internal_mask_name);
1773	awt_assert(mask_to_open);
1774
1775	aws->callback(makeWindowCallback(cmd == CMD_OPENMASK ? AWT_open_input_mask : AWT_change_input_mask, internal_mask_name, mask_to_open));
1776
1777	aws->button_length(label.length()+2);
1778	aws->create_button(key, label.c_str());
1779	}
1780	}
1781	}
1782	else if (cmd == CMD_WWW) {
1783	string button_text, url_aci;
1784	button_text = scan_string_parameter(line, scan_pos, error);
1785	if (!error) url_aci = scan_string_parameter(line, scan_pos, error, true);
1786	check_last_parameter(error, command);
1787
1788	if (!error) {
1789	const char *key = ID.fromText(button_text);
1790	aws->callback(makeWindowCallback(AWT_input_mask_browse_url, new string(url_aci), &*mask));
1791	aws->button_length(button_text.length()+2);
1792	aws->create_button(key, button_text.c_str());
1793	}
1794	}
1795	else if (cmd == CMD_ASSIGN) {
1796	string id_dest, id_source, button_text;
1797
1798	id_dest = scan_identifier(line, scan_pos, error);
1799	if (!error) id_source = scan_identifier(line, scan_pos, error);
1800	if (!error) button_text = scan_string_parameter(line, scan_pos, error);
1801
1802	if (!error) {
1803	referenced_ids[id_source] = lineNo;
1804	referenced_ids[id_dest] = lineNo;
1805
1806	const char *key = ID.fromText(button_text);
1807	aws->callback(makeWindowCallback(AWT_input_mask_perform_action, static_cast<awt_mask_action*>(new awt_assignment(mask, id_dest, id_source))));
1808	aws->button_length(button_text.length()+2);
1809	aws->create_button(key, button_text.c_str());
1810	}
1811	}
1812	else if (cmd == CMD_TEXT) {
1813	string text;
1814	text = scan_string_parameter(line, scan_pos, error);
1815	check_last_parameter(error, command);
1816
1817	if (!error) {
1818	aws->button_length(text.length()+2);
1819	aws->create_button(NULp, text.c_str());
1820	}
1821	}
1822	else if (cmd == CMD_SELF) {
1823	check_no_parameter(line, scan_pos, error, command);
1824	if (!error) {
1825	const awt_item_type_selector *selector = mask->mask_global().get_selector();
1826	aws->button_length(selector->get_self_awar_content_length());
1827	aws->create_button(NULp, selector->get_self_awar());
1828	}
1829	}
1830	else if (cmd == CMD_NEW_LINE) {
1831	check_no_parameter(line, scan_pos, error, command);
1832	if (!error) {
1833	int width, height;
1834	aws->get_window_size(width, height);
1835	aws->at_shift(0, 2*SEC_YBORDER+SEC_LINE_WIDTH);
1836	}
1837	}
1838	else if (cmd == CMD_NEW_SECTION) {
1839	check_no_parameter(line, scan_pos, error, command);
1840	if (!error) {
1841	int width, height;
1842	aws->get_window_size(width, height);
1843	horizontal_lines.push_back(height);
1844	aws->at_shift(0, 2*SEC_YBORDER+SEC_LINE_WIDTH);
1845	}
1846	}
1847	else if (cmd == CMD_UNKNOWN) {
1848	error = GBS_global_string("Unknown command '%s'", command.c_str());
1849	}
1850	else {
1851	error = GBS_global_string("No handler for '%s'", command.c_str());
1852	awt_assert(0);
1853	}
1854
1855	// --------------------------
1856	// insert handler(s)
1857
1858	if (!handler.isNull() && !error) {
1859	if (!radio_edit_handler.isNull()) { // special radio handler
1860	const awt_radio_button radio = dynamic_cast<const awt_radio_button>(&*handler);
1861	awt_assert(radio);
1862
1863	int x_start, y_start;
1864
1865	aws->get_at_position(&x_start, &y_start);
1866
1867	mask->add_handler(handler);
1868	handler->to_viewport()->build_widget(aws);
1869
1870	int x_end, y_end, dummy;
1871	aws->get_at_position(&x_end, &dummy);
1872	aws->at_newline();
1873	aws->get_at_position(&dummy, &y_end);
1874
1875	int height = y_end-y_start;
1876	int each_line = height/radio->no_of_toggles();
1877	int y_offset = each_line*(radio->default_toggle());
1878
1879	aws->at(x_end+x_spacing, y_start+y_offset);
1880
1881	mask->add_handler(radio_edit_handler);
1882	radio_edit_handler->to_viewport()->build_widget(aws);
1883
1884	radio_edit_handler.setNull();
1885	}
1886	else {
1887	mask->add_handler(handler);
1888	if (handler->is_viewport()) handler->to_viewport()->build_widget(aws);
1889	}
1890	lasthandler = handler; // store handler (used by CMD_ID)
1891	}
1892
1893	// parse rest of line or abort
1894	if (!error) {
1895	line = line.substr(scan_pos);
1896	goto PARSE_REST_OF_LINE;
1897	}
1898	err_pos = scan_pos;
1899	if (err_pos != string::npos) err_pos++; // because 0 means unknown
1900	}
1901	}
1902	}
1903	else { // reached the end of the current line
1904	aws->at_newline();
1905	}
1906	}
1907	}
1908
1909	// check declarations and references
1910	if (!error) {
1911	for (map<string, size_t>::const_iterator r = referenced_ids.begin(); r != referenced_ids.end(); ++r) {
1912	if (declared_ids.find(r->first) == declared_ids.end()) {
1913	error = GBS_global_string("ID '%s' used in line #%zu was not declared", r->first.c_str(), r->second);
1914	aw_message(error);
1915	}
1916	}
1917
1918	for (map<string, size_t>::const_iterator d = declared_ids.begin(); d != declared_ids.end(); ++d) {
1919	if (referenced_ids.find(d->first) == referenced_ids.end()) {
1920	const char *warning = GBS_global_string("ID '%s' declared in line #%zu is never used in %s",
1921	d->first.c_str(), d->second, mask_name.c_str());
1922	aw_message(warning);
1923	}
1924	}
1925
1926	if (error) error = "Inconsistent IDs";
1927	}
1928
1929	if (!error) {
1930	if (!horizontal_lines.empty()) { // draw all horizontal lines
1931	int width, height;
1932	aws->get_window_size(width, height);
1933	for (vector<int>::const_iterator yi = horizontal_lines.begin(); yi != horizontal_lines.end(); ++yi) {
1934	int y = (*yi)+SEC_YBORDER;
1935	aws->draw_line(SEC_XBORDER, y, width-SEC_XBORDER, y, SEC_LINE_WIDTH, true);
1936	}
1937	}
1938
1939	// fit the window
1940	aws->window_fit();
1941	}
1942
1943	if (!error) link_mask_to_database(mask);
1944	if (ID.seenDups()) aw_message(ID.get_dup_error(mask_name));
1945	}
1946
1947	if (error) {
1948	if (lineNo == 0) {
1949	; // do not change error
1950	}
1951	else if (err_pos == 0) { // don't knows exact error position
1952	error = GBS_global_string("%s in line #%zu", error, lineNo);
1953	}
1954	else if (err_pos == string::npos) {
1955	error = GBS_global_string("%s at end of line #%zu", error, lineNo);
1956	}
1957	else {
1958	int wanted = 35;
1959	size_t end = line.length();
1960	string context;
1961	context.reserve(wanted);
1962	bool last_was_space = false;
1963
1964	for (size_t ex = err_pos-1; ex<end && wanted>0; ++ex) {
1965	char ch = line[ex];
1966	bool this_is_space = ch == ' ';
1967
1968	if (!this_is_space \|\| !last_was_space) {
1969	context.append(1, ch);
1970	--wanted;
1971	}
1972	last_was_space = this_is_space;
1973	}
1974
1975	error = GBS_global_string("%s in line #%zu at '%s...'", error, lineNo, context.c_str());
1976	}
1977	}
1978
1979	fclose(in);
1980	}
1981
1982	if (error) mask.setNull();
1983
1984	return mask;
1985	}
1986
1987	GB_ERROR AWT_initialize_input_mask(AW_root root, GBDATA gb_main, const awt_item_type_selector sel, const char internal_mask_name, bool local) {
1988	const char *mask_name = internal_mask_name+1;
1989	InputMaskList::iterator mask_iter = input_mask_list.find(internal_mask_name);
1990	GB_ERROR error = NULp;
1991	awt_input_mask_ptr old_mask;
1992	bool unlink_old = false;
1993
1994	if (mask_iter != input_mask_list.end() && mask_iter->second->reload_on_reinit()) { // reload wanted ?
1995	// erase mask (so it loads again from scratch)
1996	old_mask = mask_iter->second;
1997	input_mask_list.erase(mask_iter);
1998	mask_iter = input_mask_list.end();
1999
2000	old_mask->hide();
2001	unlink_old = true;
2002	}
2003
2004	if (mask_iter == input_mask_list.end()) { // mask not loaded yet
2005	awt_input_mask_ptr newMask = awt_create_input_mask(root, gb_main, sel, mask_name, local, error, unlink_old);
2006	if (error) {
2007	error = GBS_global_string("Error reading %s (%s)", mask_name, error);
2008	if (!old_mask.isNull()) { // are we doing a reload or changemask ?
2009	input_mask_list[internal_mask_name] = old_mask; // error loading modified mask -> put old one back to mask-list
2010	unlink_old = false;
2011	}
2012	}
2013	else { // new mask has been generated
2014	input_mask_list[internal_mask_name] = newMask;
2015	}
2016	mask_iter = input_mask_list.find(internal_mask_name);
2017	}
2018
2019	if (!error) {
2020	awt_assert(mask_iter != input_mask_list.end());
2021	mask_iter->second->get_window()->activate();
2022	}
2023
2024	if (unlink_old) {
2025	old_mask->unlink(); // unlink old mask from database ()
2026	unlink_mask_from_database(old_mask);
2027	}
2028
2029	if (error) aw_message(error);
2030	return error;
2031	}
2032
2033	// start of implementation of class awt_input_mask:
2034
2035	awt_input_mask::~awt_input_mask() {
2036	unlink();
2037	for (awt_mask_item_list::iterator h = handlers.begin(); h != handlers.end(); ++h) {
2038	(*h)->remove_name();
2039	}
2040	}
2041
2042	void awt_input_mask::link_to(GBDATA *gb_item) {
2043	// this functions links/unlinks all registered item handlers to/from the database
2044	for (awt_mask_item_list::iterator h = handlers.begin(); h != handlers.end(); ++h) {
2045	if ((h)->is_linked_item()) (h)->to_linked_item()->link_to(gb_item);
2046	}
2047	}
2048
2049	// -end- of implementation of class awt_input_mask.
2050
2051
2052	awt_input_mask_descriptor::awt_input_mask_descriptor(const char title_, const char maskname_, const char *itemtypename_, bool local, bool hidden_) {
2053	title = ARB_strdup(title_);
2054	internal_maskname = ARB_alloc<char>(strlen(maskname_)+2);
2055	internal_maskname[0] = local ? '0' : '1';
2056	strcpy(internal_maskname+1, maskname_);
2057	itemtypename = ARB_strdup(itemtypename_);
2058	local_mask = local;
2059	hidden = hidden_;
2060	}
2061	awt_input_mask_descriptor::~awt_input_mask_descriptor() {
2062	free(itemtypename);
2063	free(internal_maskname);
2064	free(title);
2065	}
2066
2067	awt_input_mask_descriptor::awt_input_mask_descriptor(const awt_input_mask_descriptor& other) {
2068	title = ARB_strdup(other.title);
2069	internal_maskname = ARB_strdup(other.internal_maskname);
2070	itemtypename = ARB_strdup(other.itemtypename);
2071	local_mask = other.local_mask;
2072	hidden = other.hidden;
2073	}
2074	awt_input_mask_descriptor& awt_input_mask_descriptor::operator = (const awt_input_mask_descriptor& other) {
2075	if (this != &other) {
2076	free(itemtypename);
2077	free(internal_maskname);
2078	free(title);
2079
2080	title = ARB_strdup(other.title);
2081	internal_maskname = ARB_strdup(other.internal_maskname);
2082	itemtypename = ARB_strdup(other.itemtypename);
2083	local_mask = other.local_mask;
2084	hidden = other.hidden;
2085	}
2086
2087	return *this;
2088	}
2089
2090	static bool scanned_existing_input_masks = false;
2091	static vector<awt_input_mask_descriptor> existing_masks;
2092
2093	static void add_new_input_mask(const string& maskname, const string& fullname, bool local) {
2094	awt_input_mask_descriptor *descriptor = quick_scan_input_mask(maskname, fullname, local);
2095	if (descriptor) {
2096	existing_masks.push_back(*descriptor);
2097	delete descriptor;
2098	}
2099	}
2100	static void scan_existing_input_masks() {
2101	awt_assert(!scanned_existing_input_masks);
2102
2103	for (int scope = 0; scope <= 1; ++scope) {
2104	const char *dirname = inputMaskDir(scope == AWT_SCOPE_LOCAL);
2105
2106	if (!GB_is_directory(dirname)) {
2107	if (scope == AWT_SCOPE_LOCAL) { // in local scope
2108	GB_ERROR warning = GB_create_directory(dirname); // try to create directory
2109	if (warning) GB_warning(warning);
2110	}
2111	}
2112
2113	DIR *dirp = opendir(dirname);
2114	if (!dirp) {
2115	fprintf(stderr, "Warning: No such directory '%s'\n", dirname);
2116	}
2117	else {
2118	struct dirent *dp;
2119	for (dp = readdir(dirp); dp; dp = readdir(dirp)) {
2120	struct stat st;
2121	string maskname = dp->d_name;
2122	string fullname = inputMaskFullname(maskname, scope == AWT_SCOPE_LOCAL);
2123
2124	if (stat(fullname.c_str(), &st)) continue;
2125	if (!S_ISREG(st.st_mode)) continue;
2126	// now we have a regular file
2127
2128	size_t ext_pos = maskname.find(".mask");
2129
2130	if (ext_pos != string::npos && maskname.substr(ext_pos) == ".mask") {
2131	awt_input_mask_descriptor *descriptor = quick_scan_input_mask(maskname, fullname, scope == AWT_SCOPE_LOCAL);
2132	if (descriptor) { // we found a input mask file
2133	existing_masks.push_back(*descriptor);
2134	delete descriptor;
2135	}
2136	}
2137	}
2138	closedir(dirp);
2139	}
2140	}
2141	scanned_existing_input_masks = true;
2142	}
2143
2144	const awt_input_mask_descriptor *AWT_look_input_mask(int id) {
2145	if (!scanned_existing_input_masks) scan_existing_input_masks();
2146
2147	if (id<0 \|\| size_t(id) >= existing_masks.size()) return NULp;
2148
2149	const awt_input_mask_descriptor *descriptor = &existing_masks[id];
2150	return descriptor;
2151	}
2152
2153	awt_item_type AWT_getItemType(const string& itemtype_name) {
2154	awt_item_type type = AWT_IT_UNKNOWN;
2155
2156	for (int i = AWT_IT_UNKNOWN+1; i<AWT_IT_TYPES; ++i) {
2157	if (itemtype_name == awt_itemtype_names[i]) {
2158	type = awt_item_type(i);
2159	break;
2160	}
2161	}
2162
2163	return type;
2164	}
2165
2166	// -----------------------------
2167	// Registered Itemtypes
2168
2169	class AWT_registered_itemtype {
2170	// stores information about so-far-used item types
2171	RefPtr<AW_window_menu_modes> awm; // the main window responsible for opening windows
2172	AWT_OpenMaskWindowCallback open_window_cb; // callback to open the window
2173
2174	public:
2175	AWT_registered_itemtype() :
2176	awm(NULp),
2177	open_window_cb(NULp)
2178	{}
2179	AWT_registered_itemtype(AW_window_menu_modes *awm_, AWT_OpenMaskWindowCallback open_window_cb_) :
2180	awm(awm_),
2181	open_window_cb(open_window_cb_)
2182	{}
2183
2184	AW_window_menu_modes *getWindow() const { return awm; }
2185	AWT_OpenMaskWindowCallback getOpenCb() const { return open_window_cb; }
2186	};
2187
2188	typedef map<awt_item_type, AWT_registered_itemtype> TypeRegistry;
2189	typedef TypeRegistry::const_iterator TypeRegistryIter;
2190
2191	static TypeRegistry registeredTypes;
2192
2193	static GB_ERROR openMaskWindowByType(int mask_id, awt_item_type type) {
2194	TypeRegistryIter registered = registeredTypes.find(type);
2195	GB_ERROR error = NULp;
2196
2197	if (registered == registeredTypes.end()) error = GBS_global_string("Type '%s' not registered (yet)", awt_itemtype_names[type]);
2198	else registered->second.getOpenCb()(registered->second.getWindow(), mask_id, NULp);
2199
2200	return error;
2201	}
2202
2203	static void registerType(awt_item_type type, AW_window_menu_modes *awm, AWT_OpenMaskWindowCallback open_window_cb) {
2204	TypeRegistryIter alreadyRegistered = registeredTypes.find(type);
2205	if (alreadyRegistered == registeredTypes.end()) {
2206	registeredTypes[type] = AWT_registered_itemtype(awm, open_window_cb);
2207	}
2208	#if defined(DEBUG)
2209	else {
2210	awt_assert(alreadyRegistered->second.getOpenCb() == open_window_cb);
2211	}
2212	#endif // DEBUG
2213	}
2214
2215	// ----------------------------------------------
2216	// Create a new input mask (interactive)
2217
2218	static void create_new_mask_cb(AW_window *aww) {
2219	AW_root *awr = aww->get_root();
2220
2221	string maskname = awr->awar(AWAR_INPUT_MASK_NAME)->read_char_pntr();
2222	{
2223	size_t ext = maskname.find(".mask");
2224
2225	if (ext == string::npos) maskname = maskname+".mask";
2226	else maskname = maskname.substr(0, ext)+".mask";
2227
2228	awr->awar(AWAR_INPUT_MASK_NAME)->write_string(maskname.c_str());
2229	}
2230
2231
2232	string itemname = awr->awar(AWAR_INPUT_MASK_ITEM)->read_char_pntr();
2233	int scope = awr->awar(AWAR_INPUT_MASK_SCOPE)->read_int();
2234	int hidden = awr->awar(AWAR_INPUT_MASK_HIDDEN)->read_int();
2235	bool local = scope == AWT_SCOPE_LOCAL;
2236	string maskfullname = inputMaskFullname(maskname, local);
2237	bool openMask = false;
2238
2239	const char *error = NULp;
2240	struct stat st;
2241
2242	if (stat(maskfullname.c_str(), &st) == 0) { // file exists
2243	int answer = aw_question("overwrite_mask", "File does already exist", "Overwrite mask,Cancel");
2244	switch (answer) {
2245	case 0:
2246	openMask = true;
2247	break;
2248	case 1: break;
2249	default: awt_assert(0); break;
2250	}
2251	}
2252	else { // file does not exist
2253	error = GB_create_directory(inputMaskDir(local));
2254	if (!error) {
2255	error = writeDefaultMaskfile(maskfullname, maskname, itemname, hidden);
2256	}
2257	if (!error) {
2258	add_new_input_mask(maskname, maskfullname, local);
2259	openMask = true;
2260	}
2261	}
2262
2263	if (!error && openMask) {
2264	int mask_id;
2265	awt_item_type item_type = AWT_IT_UNKNOWN;
2266
2267	for (mask_id = 0; ; ++mask_id) {
2268	const awt_input_mask_descriptor *descriptor = AWT_look_input_mask(mask_id);
2269	if (!descriptor) {
2270	error = GBS_global_string("Can't find descriptor for mask '%s'", maskname.c_str());
2271	break;
2272	}
2273
2274	if (strcmp(descriptor->get_maskname(), maskname.c_str()) == 0 &&
2275	descriptor->is_local_mask() == local)
2276	{
2277	item_type = AWT_getItemType(descriptor->get_itemtypename());
2278	break; // found wanted mask id
2279	}
2280	}
2281
2282	if (!error) {
2283	error = openMaskWindowByType(mask_id, item_type);
2284	}
2285	}
2286
2287	if (error) aw_message(error);
2288	}
2289
2290	static void create_new_input_mask(AW_window *aww, awt_item_type item_type) { // create new user mask (interactively)
2291	static AW_window_simple *aws = NULp;
2292
2293	if (!aws) {
2294	aws = new AW_window_simple;
2295
2296	aws->init(aww->get_root(), "CREATE_USER_MASK", "Create new input mask:");
2297
2298	aws->auto_space(10, 10);
2299
2300	aws->button_length(10);
2301	aws->callback(AW_POPDOWN);
2302	aws->create_button("CLOSE", "CLOSE");
2303	aws->callback(makeHelpCallback("input_mask_new.hlp"));
2304	aws->create_button("HELP", "HELP", "H");
2305
2306	aws->at_newline();
2307
2308	aws->label("Name of new input mask");
2309	aws->create_input_field(AWAR_INPUT_MASK_NAME, 20);
2310
2311	aws->at_newline();
2312
2313	aws->label("Item type");
2314	aws->create_option_menu(AWAR_INPUT_MASK_ITEM, true);
2315	for (int i = AWT_IT_UNKNOWN+1; i<AWT_IT_TYPES; ++i) {
2316	aws->insert_option(awt_itemtype_names[i], "", awt_itemtype_names[i]);
2317	}
2318	aws->update_option_menu();
2319
2320	aws->at_newline();
2321
2322	aws->label("Scope");
2323	aws->create_toggle_field(AWAR_INPUT_MASK_SCOPE, 1);
2324	aws->insert_toggle("Local", "L", AWT_SCOPE_LOCAL);
2325	aws->insert_toggle("Global", "G", AWT_SCOPE_GLOBAL);
2326	aws->update_toggle_field();
2327
2328	aws->at_newline();
2329
2330	aws->label("Visibility");
2331	aws->create_toggle_field(AWAR_INPUT_MASK_HIDDEN, 1);
2332	aws->insert_toggle("Normal", "N", 0);
2333	aws->insert_toggle("Hidden", "H", 1);
2334	aws->update_toggle_field();
2335
2336	aws->at_newline();
2337
2338	aws->callback(create_new_mask_cb);
2339	aws->create_button("CREATE", "CREATE", "C");
2340
2341	aws->window_fit();
2342	}
2343
2344	aws->activate();
2345	aww->get_root()->awar(AWAR_INPUT_MASK_ITEM)->write_string(awt_itemtype_names[item_type]);
2346	}
2347
2348	// -----------------------------------------------------
2349	// Create User-Mask-Submenu for any application
2350
2351	static bool hadMnemonic(char *availableMnemonics, char c) {
2352	// return true if 'c' occurs in 'availableMnemonics' (case ignored)
2353	// (in that case 'c' is removed from 'availableMnemonics').
2354	// returns false otherwise.
2355	char lc = tolower(c);
2356	char *cand = strchr(availableMnemonics, lc);
2357	if (cand) {
2358	char *last = strchr(cand+1, 0)-1;
2359	if (last>cand) {
2360	cand[0] = last[0];
2361	last[0] = 0;
2362	}
2363	else {
2364	awt_assert(last == cand);
2365	cand[0] = 0;
2366	}
2367	return true;
2368	}
2369	return false;
2370	}
2371
2372	static char selectMnemonic(const char orgTitle, char *availableMnemonics, char& mnemonic) {
2373	// select (and remove) one from 'availableMnemonics' occurring in orgTitle
2374	// return selected in 'mnemonic'
2375	// return orgTitle (eventually modified if no matching mnemonic available)
2376
2377	bool prevWasChar = false;
2378	for (int startOfWord = 1; startOfWord>=0; --startOfWord) {
2379	for (int i = 0; orgTitle[i]; ++i) {
2380	char c = orgTitle[i];
2381	if (isalnum(c)) {
2382	if (!prevWasChar \|\| !startOfWord) {
2383	if (hadMnemonic(availableMnemonics, c)) {
2384	mnemonic = c;
2385	return ARB_strdup(orgTitle);
2386	}
2387	}
2388	prevWasChar = true;
2389	}
2390	else prevWasChar = false;
2391	}
2392	}
2393
2394	for (int i = 0; i<2; ++i) {
2395	const char *takeAny = i ? availableMnemonics : "1234567890";
2396	for (int t = 0; takeAny[t]; ++t) {
2397	char c = takeAny[t];
2398	if (hadMnemonic(availableMnemonics, c)) {
2399	mnemonic = c;
2400	return GBS_global_string_copy("%s [%c]", orgTitle, c);
2401	}
2402	}
2403	}
2404
2405	mnemonic = 0; // failed
2406	return ARB_strdup(orgTitle);
2407	}
2408
2409	void AWT_create_mask_submenu(AW_window_menu_modes awm, awt_item_type wanted_item_type, AWT_OpenMaskWindowCallback open_mask_window_cb, GBDATA gb_main) {
2410	// add a user mask submenu at current position
2411	AW_root *awr = awm->get_root();
2412
2413	if (!global_awars_created) create_global_awars(awr);
2414
2415	awm->insert_sub_menu("User Masks", "k");
2416
2417	char *availableMnemonics = ARB_strdup("abcdefghijklmopqrstuvwxyz0123456789"); // 'n' excluded!
2418
2419	for (int scope = 0; scope <= 1; ++scope) {
2420	bool entries_made = false;
2421
2422	for (int id = 0; ; ++id) {
2423	const awt_input_mask_descriptor *descriptor = AWT_look_input_mask(id);
2424
2425	if (!descriptor) break;
2426	if (descriptor->is_local_mask() != (scope == AWT_SCOPE_LOCAL)) continue; // wrong scope type
2427
2428	awt_item_type item_type = AWT_getItemType(descriptor->get_itemtypename());
2429
2430	if (item_type == wanted_item_type) {
2431	if (!descriptor->is_hidden()) { // do not show masks with hidden-flag
2432	entries_made = true;
2433	char *macroname2key = GBS_string_2_key(descriptor->get_internal_maskname());
2434	#if defined(DEBUG) && 0
2435	printf("added user-mask '%s' with id=%i\n", descriptor->get_maskname(), id);
2436	#endif // DEBUG
2437	char mnemonic[2] = "x";
2438	char *mod_title = selectMnemonic(descriptor->get_title(), availableMnemonics, mnemonic[0]);
2439
2440	awm->insert_menu_topic(macroname2key, mod_title, mnemonic, "input_mask.hlp", AWM_ALL, makeWindowCallback(open_mask_window_cb, id, gb_main));
2441	free(mod_title);
2442	free(macroname2key);
2443	}
2444	registerType(item_type, awm, open_mask_window_cb);
2445	}
2446	else if (item_type == AWT_IT_UNKNOWN) {
2447	aw_message(GBS_global_string("Unknown @ITEMTYPE '%s' in '%s'", descriptor->get_itemtypename(), descriptor->get_internal_maskname()));
2448	}
2449	}
2450	if (entries_made) awm->sep______________();
2451	}
2452
2453	{
2454	const char *itemname = awt_itemtype_names[wanted_item_type];
2455	char *new_item_mask_id = GBS_global_string_copy("new_%s_mask", itemname);
2456	char *new_item_mask_label = GBS_global_string_copy("New %s mask..", itemname);
2457
2458	awm->insert_menu_topic(new_item_mask_id, new_item_mask_label, "N", "input_mask_new.hlp", AWM_ALL, makeWindowCallback(create_new_input_mask, wanted_item_type));
2459
2460	free(new_item_mask_label);
2461	free(new_item_mask_id);
2462	}
2463	free(availableMnemonics);
2464	awm->close_sub_menu();
2465	}
2466
2467	void AWT_destroy_input_masks() {
2468	// unlink from DB manually - there are too many smartptrs to
2469	// get rid of all of them before DB gets destroyed on exit
2470	for (InputMaskList::iterator i = input_mask_list.begin();
2471	i != input_mask_list.end();
2472	++i)
2473	{
2474	i->second->unlink();
2475	}
2476	input_mask_list.clear();
2477	}
2478
2479
2480	void awt_item_type_selector::add_awar_callbacks(AW_root *root, const RootCallback& cb) const {
2481	root->awar(get_self_awar())->add_callback(cb);
2482	}
2483
2484	void awt_item_type_selector::remove_awar_callbacks(AW_root *root, const RootCallback& cb) const {
2485	root->awar(get_self_awar())->remove_callback(cb);
2486	}

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