/[svn]/gigedit/trunk/src/gigedit/scripteditor.cpp
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Contents of /gigedit/trunk/src/gigedit/scripteditor.cpp

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Revision 3261 - (show annotations) (download)
Wed May 31 21:11:56 2017 UTC (3 years ago) by schoenebeck
File size: 22144 byte(s)
* Script Editor: only if compiled without liblinuxsampler; added support
  for new NKSP language keyword "synchronized".

1 /*
2 Copyright (c) 2014-2017 Christian Schoenebeck
3
4 This file is part of "gigedit" and released under the terms of the
5 GNU General Public License version 2.
6 */
7
8 #include "scripteditor.h"
9 #include "global.h"
10
11 #if !USE_LS_SCRIPTVM
12
13 static const std::string _keywords[] = {
14 "on", "end", "declare", "while", "if", "or", "and", "not", "else", "case",
15 "select", "to", "const", "polyphonic", "mod", "synchronized"
16 };
17 static int _keywordsSz = sizeof(_keywords) / sizeof(std::string);
18
19 static const std::string _eventNames[] = {
20 "init", "note", "release", "controller"
21 };
22 static int _eventNamesSz = sizeof(_eventNames) / sizeof(std::string);
23
24 static bool isKeyword(const Glib::ustring& s) {
25 for (int i = 0; i < _keywordsSz; ++i)
26 if (_keywords[i] == s) return true;
27 return false;
28 }
29
30 static bool isEvent(const Glib::ustring& s) {
31 for (int i = 0; i < _eventNamesSz; ++i)
32 if (_eventNames[i] == s) return true;
33 return false;
34 }
35
36 #endif // !USE_LS_SCRIPTVM
37
38 static Glib::RefPtr<Gdk::Pixbuf> createIcon(std::string name, const Glib::RefPtr<Gdk::Screen>& screen) {
39 const int targetH = 16;
40 Glib::RefPtr<Gtk::IconTheme> theme = Gtk::IconTheme::get_for_screen(screen);
41 int w = 0;
42 int h = 0; // ignored
43 Gtk::IconSize::lookup(Gtk::ICON_SIZE_SMALL_TOOLBAR, w, h);
44 if (!theme->has_icon(name))
45 return Glib::RefPtr<Gdk::Pixbuf>();
46 Glib::RefPtr<Gdk::Pixbuf> pixbuf = theme->load_icon(name, w, Gtk::ICON_LOOKUP_GENERIC_FALLBACK);
47 if (pixbuf->get_height() != targetH) {
48 pixbuf = pixbuf->scale_simple(targetH, targetH, Gdk::INTERP_BILINEAR);
49 }
50 return pixbuf;
51 }
52
53 static Glib::RefPtr<Gdk::Pixbuf> createIcon(std::vector<std::string> alternativeNames, const Glib::RefPtr<Gdk::Screen>& screen) {
54 for (int i = 0; i < alternativeNames.size(); ++i) {
55 Glib::RefPtr<Gdk::Pixbuf> buf = createIcon(alternativeNames[i], screen);
56 if (buf) return buf;
57 }
58 return Glib::RefPtr<Gdk::Pixbuf>();
59 }
60
61 ScriptEditor::ScriptEditor() :
62 m_statusLabel("", Gtk::ALIGN_START),
63 m_applyButton(Gtk::Stock::APPLY),
64 m_cancelButton(Gtk::Stock::CANCEL)
65 {
66 m_script = NULL;
67 #if USE_LS_SCRIPTVM
68 m_vm = NULL;
69 #endif
70
71 if (!Settings::singleton()->autoRestoreWindowDimension) {
72 set_default_size(800, 700);
73 set_position(Gtk::WIN_POS_MOUSE);
74 }
75
76 // depending on GTK version and installed themes, there may be different
77 // icons, and different names for them, so for each type of icon we use,
78 // we provide a list of possible icon names, the first one found to be
79 // installed on the local system from the list will be used and loaded for
80 // the respective purpose (so order matters in those lists)
81 //
82 // (see https://developer.gnome.org/gtkmm/stable/namespaceGtk_1_1Stock.html for
83 // available icon names)
84 std::vector<std::string> errorIconNames;
85 errorIconNames.push_back("dialog-error");
86 errorIconNames.push_back("media-record");
87 errorIconNames.push_back("process-stop");
88
89 std::vector<std::string> warningIconNames;
90 warningIconNames.push_back("dialog-warning-symbolic");
91 warningIconNames.push_back("dialog-warning");
92
93 std::vector<std::string> successIconNames;
94 successIconNames.push_back("emblem-default");
95 successIconNames.push_back("tools-check-spelling");
96
97 m_errorIcon = createIcon(errorIconNames, get_screen());
98 m_warningIcon = createIcon(warningIconNames, get_screen());
99 m_successIcon = createIcon(successIconNames, get_screen());
100
101 add(m_vbox);
102
103 m_tagTable = Gtk::TextBuffer::TagTable::create();
104
105 m_keywordTag = Gtk::TextBuffer::Tag::create();
106 m_keywordTag->property_foreground() = "#000000"; // black
107 m_keywordTag->property_weight() = PANGO_WEIGHT_BOLD;
108 m_tagTable->add(m_keywordTag);
109
110 m_eventTag = Gtk::TextBuffer::Tag::create();
111 m_eventTag->property_foreground() = "#07c0cf"; // cyan 1
112 m_eventTag->property_weight() = PANGO_WEIGHT_BOLD;
113 m_tagTable->add(m_eventTag);
114
115 m_variableTag = Gtk::TextBuffer::Tag::create();
116 m_variableTag->property_foreground() = "#790cc4"; // magenta
117 m_tagTable->add(m_variableTag);
118
119 m_functionTag = Gtk::TextBuffer::Tag::create();
120 m_functionTag->property_foreground() = "#1ba1dd"; // cyan 2
121 m_tagTable->add(m_functionTag);
122
123 m_numberTag = Gtk::TextBuffer::Tag::create();
124 m_numberTag->property_foreground() = "#c4950c"; // yellow
125 m_tagTable->add(m_numberTag);
126
127 m_stringTag = Gtk::TextBuffer::Tag::create();
128 m_stringTag->property_foreground() = "#c40c0c"; // red
129 m_tagTable->add(m_stringTag);
130
131 m_commentTag = Gtk::TextBuffer::Tag::create();
132 m_commentTag->property_foreground() = "#9c9c9c"; // gray
133 m_tagTable->add(m_commentTag);
134
135 m_preprocTag = Gtk::TextBuffer::Tag::create();
136 m_preprocTag->property_foreground() = "#2f8a33"; // green
137 m_tagTable->add(m_preprocTag);
138
139 m_errorTag = Gtk::TextBuffer::Tag::create();
140 m_errorTag->property_background() = "#ff9393"; // red
141 m_tagTable->add(m_errorTag);
142
143 m_warningTag = Gtk::TextBuffer::Tag::create();
144 m_warningTag->property_background() = "#fffd7c"; // yellow
145 m_tagTable->add(m_warningTag);
146
147 // create menu
148 m_actionGroup = Gtk::ActionGroup::create();
149 m_actionGroup->add(Gtk::Action::create("MenuScript", _("_Script")));
150 m_actionGroup->add(Gtk::Action::create("Apply", _("_Apply")),
151 Gtk::AccelKey("<control>s"),
152 sigc::mem_fun(*this, &ScriptEditor::onButtonApply));
153 m_actionGroup->add(Gtk::Action::create("Close", _("_Close")),
154 Gtk::AccelKey("<control>q"),
155 sigc::mem_fun(*this, &ScriptEditor::onButtonCancel));
156 m_actionGroup->add(Gtk::Action::create("MenuEditor", _("_Editor")));
157 m_actionGroup->add(Gtk::Action::create("ChangeFont", _("_Font Size ...")),
158 sigc::mem_fun(*this, &ScriptEditor::onMenuChangeFontSize));
159 m_uiManager = Gtk::UIManager::create();
160 m_uiManager->insert_action_group(m_actionGroup);
161 add_accel_group(m_uiManager->get_accel_group());
162 m_uiManager->add_ui_from_string(
163 "<ui>"
164 " <menubar name='MenuBar'>"
165 " <menu action='MenuScript'>"
166 " <menuitem action='Apply'/>"
167 " <separator/>"
168 " <menuitem action='Close'/>"
169 " </menu>"
170 " <menu action='MenuEditor'>"
171 " <menuitem action='ChangeFont'/>"
172 " </menu>"
173 " </menubar>"
174 "</ui>"
175 );
176
177 m_textBuffer = Gtk::TextBuffer::create(m_tagTable);
178 m_textView.set_buffer(m_textBuffer);
179 setFontSize(currentFontSize(), false);
180 m_scrolledWindow.add(m_textView);
181 m_scrolledWindow.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
182
183 Gtk::Widget* menuBar = m_uiManager->get_widget("/MenuBar");
184 m_vbox.pack_start(*menuBar, Gtk::PACK_SHRINK);
185 m_vbox.pack_start(m_scrolledWindow);
186
187 m_buttonBox.set_layout(Gtk::BUTTONBOX_END);
188 m_buttonBox.pack_start(m_applyButton);
189 m_buttonBox.pack_start(m_cancelButton);
190 m_applyButton.set_can_default();
191 m_applyButton.set_sensitive(false);
192 m_applyButton.grab_focus();
193
194 #if GTKMM_MAJOR_VERSION >= 3
195 m_statusImage.set_margin_left(6);
196 m_statusImage.set_margin_right(6);
197 #else
198 m_statusHBox.set_spacing(6);
199 #endif
200
201 m_statusHBox.pack_start(m_statusImage, Gtk::PACK_SHRINK);
202 m_statusHBox.pack_start(m_statusLabel);
203 m_statusHBox.show_all_children();
204
205 m_footerHBox.pack_start(m_statusHBox);
206 m_footerHBox.pack_start(m_buttonBox, Gtk::PACK_SHRINK);
207
208 m_vbox.pack_start(m_footerHBox, Gtk::PACK_SHRINK);
209
210 m_applyButton.signal_clicked().connect(
211 sigc::mem_fun(*this, &ScriptEditor::onButtonApply)
212 );
213
214 m_cancelButton.signal_clicked().connect(
215 sigc::mem_fun(*this, &ScriptEditor::onButtonCancel)
216 );
217
218 m_textBuffer->signal_insert().connect(
219 sigc::mem_fun(*this, &ScriptEditor::onTextInserted)
220 );
221
222 m_textBuffer->signal_erase().connect(
223 sigc::mem_fun(*this, &ScriptEditor::onTextErased)
224 );
225
226 m_textBuffer->signal_modified_changed().connect(
227 sigc::mem_fun(*this, &ScriptEditor::onModifiedChanged)
228 );
229
230 signal_hide().connect(
231 sigc::mem_fun(*this, &ScriptEditor::onWindowHide)
232 );
233
234 signal_delete_event().connect(
235 sigc::mem_fun(*this, &ScriptEditor::onWindowDelete)
236 );
237
238 show_all_children();
239 }
240
241 ScriptEditor::~ScriptEditor() {
242 printf("ScriptEditor destruct\n");
243 #if USE_LS_SCRIPTVM
244 if (m_vm) delete m_vm;
245 #endif
246 }
247
248 int ScriptEditor::currentFontSize() const {
249 #if defined(__APPLE__)
250 const int defaultFontSize = 13;
251 #else
252 const int defaultFontSize = 10;
253 #endif
254 const int settingFontSize = Settings::singleton()->scriptEditorFontSize;
255 const int fontSize = (settingFontSize > 0) ? settingFontSize : defaultFontSize;
256 return fontSize;
257 }
258
259 void ScriptEditor::setFontSize(int size, bool save) {
260 //printf("setFontSize(%d,%d)\n", size, save);
261 Pango::FontDescription fdesc;
262 fdesc.set_family("monospace");
263 fdesc.set_size(size * PANGO_SCALE);
264 #if GTKMM_MAJOR_VERSION < 3
265 m_textView.modify_font(fdesc);
266 #else
267 m_textView.override_font(fdesc);
268 #endif
269 if (save) Settings::singleton()->scriptEditorFontSize = size;
270 }
271
272 void ScriptEditor::setScript(gig::Script* script) {
273 m_script = script;
274 if (!script) {
275 set_title(_("No Script"));
276 return;
277 }
278
279 set_title(std::string(_("Instrument Script")) + " - \"" + script->Name + "\"");
280
281 std::string txt = script->GetScriptAsText();
282 //printf("text : '%s'\n", txt.c_str());
283 m_textBuffer->set_text(txt);
284 m_textBuffer->set_modified(false);
285 }
286
287 void ScriptEditor::onTextInserted(const Gtk::TextBuffer::iterator& itEnd, const Glib::ustring& txt, int length) {
288 //printf("onTextInserted()\n");
289 #if USE_LS_SCRIPTVM
290 m_textBuffer->remove_all_tags(m_textBuffer->begin(), m_textBuffer->end());
291 updateSyntaxHighlightingByVM();
292 updateParserIssuesByVM();
293 updateStatusBar();
294 #else
295 //printf("inserted %d\n", length);
296 Gtk::TextBuffer::iterator itStart = itEnd;
297 itStart.backward_chars(length);
298
299 Gtk::TextBuffer::iterator it = itStart;
300 it.backward_word_start();
301
302 bool eofReached = false;
303 while (it <= itEnd) {
304 Gtk::TextBuffer::iterator itWordStart = it;
305 if (!it.forward_word_end()) {
306 eofReached = true;
307 it = itEnd;
308 }
309
310 Glib::ustring s = m_textBuffer->get_text(itWordStart, it, false);
311 //printf("{%s}\n", s.c_str());
312 if (isKeyword(s))
313 m_textBuffer->apply_tag(m_keywordTag, itWordStart, it);
314 else if (isEvent(s)) {
315 // check if previous word is "on"
316 Gtk::TextBuffer::iterator itPreviousWordStart = itWordStart;
317 if (itPreviousWordStart.backward_word_start()) {
318 Gtk::TextBuffer::iterator itPreviousWordEnd = itPreviousWordStart;
319 itPreviousWordEnd.forward_word_end();
320 if (m_textBuffer->get_text(itPreviousWordStart, itPreviousWordEnd, false) == "on") {
321 m_textBuffer->apply_tag(m_eventTag, itWordStart, it);
322 }
323 }
324 }
325
326 if (eofReached) break;
327
328 while (!it.inside_word())
329 if (!it.forward_char())
330 goto EOF_REACHED;
331 }
332
333 EOF_REACHED:
334 ;
335
336 #endif // USE_LS_SCRIPTVM
337 }
338
339 #if USE_LS_SCRIPTVM
340
341 LinuxSampler::ScriptVM* ScriptEditor::GetScriptVM() {
342 if (!m_vm) m_vm = LinuxSampler::ScriptVMFactory::Create("gig");
343 return m_vm;
344 }
345
346 static void getIteratorsForIssue(Glib::RefPtr<Gtk::TextBuffer>& txtbuf, const LinuxSampler::ParserIssue& issue, Gtk::TextBuffer::iterator& start, Gtk::TextBuffer::iterator& end) {
347 Gtk::TextBuffer::iterator itLine =
348 txtbuf->get_iter_at_line_index(issue.firstLine - 1, 0);
349 const int charsInLine = itLine.get_bytes_in_line();
350 start = txtbuf->get_iter_at_line_index(
351 issue.firstLine - 1,
352 // check we are not getting past the end of the line here, otherwise Gtk crashes
353 issue.firstColumn - 1 < charsInLine ? issue.firstColumn - 1 : charsInLine - 1
354 );
355 end = start;
356 end.forward_lines(issue.lastLine - issue.firstLine);
357 end.forward_chars(
358 (issue.lastLine != issue.firstLine)
359 ? issue.lastColumn - 1
360 : issue.lastColumn - issue.firstColumn + 1
361 );
362 }
363
364 static void applyCodeTag(Glib::RefPtr<Gtk::TextBuffer>& txtbuf, const LinuxSampler::VMSourceToken& token, Glib::RefPtr<Gtk::TextBuffer::Tag>& tag) {
365 Gtk::TextBuffer::iterator itLine =
366 txtbuf->get_iter_at_line_index(token.firstLine(), 0);
367 const int charsInLine = itLine.get_bytes_in_line();
368 Gtk::TextBuffer::iterator itStart = txtbuf->get_iter_at_line_index(
369 token.firstLine(),
370 // check we are not getting past the end of the line here, otherwise Gtk crashes
371 token.firstColumn() < charsInLine ? token.firstColumn() : charsInLine - 1
372 );
373 Gtk::TextBuffer::iterator itEnd = itStart;
374 const int length = token.text().length();
375 itEnd.forward_chars(length);
376 txtbuf->apply_tag(tag, itStart, itEnd);
377 }
378
379 static void applyCodeTag(Glib::RefPtr<Gtk::TextBuffer>& txtbuf, const LinuxSampler::ParserIssue& issue, Glib::RefPtr<Gtk::TextBuffer::Tag>& tag) {
380 Gtk::TextBuffer::iterator itStart, itEnd;
381 getIteratorsForIssue(txtbuf, issue, itStart, itEnd);
382 txtbuf->apply_tag(tag, itStart, itEnd);
383 }
384
385 void ScriptEditor::updateSyntaxHighlightingByVM() {
386 GetScriptVM();
387 const std::string s = m_textBuffer->get_text();
388 if (s.empty()) return;
389 std::vector<LinuxSampler::VMSourceToken> tokens = m_vm->syntaxHighlighting(s);
390
391 for (int i = 0; i < tokens.size(); ++i) {
392 const LinuxSampler::VMSourceToken& token = tokens[i];
393
394 if (token.isKeyword()) {
395 applyCodeTag(m_textBuffer, token, m_keywordTag);
396 } else if (token.isVariableName()) {
397 applyCodeTag(m_textBuffer, token, m_variableTag);
398 } else if (token.isIdentifier()) {
399 if (token.isEventHandlerName()) {
400 applyCodeTag(m_textBuffer, token, m_eventTag);
401 } else { // a function ...
402 applyCodeTag(m_textBuffer, token, m_functionTag);
403 }
404 } else if (token.isNumberLiteral()) {
405 applyCodeTag(m_textBuffer, token, m_numberTag);
406 } else if (token.isStringLiteral()) {
407 applyCodeTag(m_textBuffer, token, m_stringTag);
408 } else if (token.isComment()) {
409 applyCodeTag(m_textBuffer, token, m_commentTag);
410 } else if (token.isPreprocessor()) {
411 applyCodeTag(m_textBuffer, token, m_preprocTag);
412 } else if (token.isNewLine()) {
413 }
414 }
415 }
416
417 void ScriptEditor::updateParserIssuesByVM() {
418 GetScriptVM();
419 const std::string s = m_textBuffer->get_text();
420 LinuxSampler::VMParserContext* parserContext = m_vm->loadScript(s);
421 m_issues = parserContext->issues();
422 m_errors = parserContext->errors();
423 m_warnings = parserContext->warnings();
424
425 if (!s.empty()) {
426 for (int i = 0; i < m_issues.size(); ++i) {
427 const LinuxSampler::ParserIssue& issue = m_issues[i];
428
429 if (issue.isErr()) {
430 applyCodeTag(m_textBuffer, issue, m_errorTag);
431 } else if (issue.isWrn()) {
432 applyCodeTag(m_textBuffer, issue, m_warningTag);
433 }
434 }
435 }
436
437 delete parserContext;
438 }
439
440 void ScriptEditor::updateIssueTooltip(GdkEventMotion* e) {
441 int x, y;
442 m_textView.window_to_buffer_coords(Gtk::TEXT_WINDOW_TEXT, int(e->x), int(e->y), x, y);
443
444 Gtk::TextBuffer::iterator it;
445 m_textView.get_iter_at_location(it, x, y);
446
447 const int line = it.get_line();
448 const int column = it.get_line_offset();
449
450 //printf("mouse at l%d c%d\n", line, column);
451
452 for (int i = 0; i < m_issues.size(); ++i) {
453 const LinuxSampler::ParserIssue& issue = m_issues[i];
454 const int firstLine = issue.firstLine - 1;
455 const int firstColumn = issue.firstColumn - 1;
456 const int lastLine = issue.lastLine - 1;
457 const int lastColumn = issue.lastColumn - 1;
458 if (firstLine <= line && line <= lastLine &&
459 (firstLine != line || firstColumn <= column) &&
460 (lastLine != line || lastColumn >= column))
461 {
462 m_textView.set_tooltip_markup(
463 (issue.isErr() ? "<span foreground=\"#ff9393\">ERROR:</span> " : "<span foreground=\"#c4950c\">Warning:</span> ") +
464 issue.txt
465 );
466 return;
467 }
468 }
469
470 m_textView.set_tooltip_markup("");
471 }
472
473 static std::string warningsCountTxt(const std::vector<LinuxSampler::ParserIssue> warnings) {
474 std::string txt = "<span foreground=\"#c4950c\">" + ToString(warnings.size());
475 txt += (warnings.size() == 1) ? " Warning" : " Warnings";
476 txt += "</span>";
477 return txt;
478 }
479
480 static std::string errorsCountTxt(const std::vector<LinuxSampler::ParserIssue> errors) {
481 std::string txt = "<span foreground=\"#c40c0c\">" + ToString(errors.size());
482 txt += (errors.size() == 1) ? " Error" : " Errors";
483 txt += "</span>";
484 return txt;
485 }
486
487 void ScriptEditor::updateStatusBar() {
488 // update status text
489 std::string txt;
490 if (m_issues.empty()) {
491 txt = "No issues with this script.";
492 } else {
493 const char* txtWontLoad = ". Sampler won't load instruments using this script!";
494 txt = "There ";
495 txt += (m_errors.size() <= 1 && m_warnings.size() <= 1) ? "is " : "are ";
496 if (m_errors.empty()) {
497 txt += warningsCountTxt(m_warnings) + ". Script will load, but might not behave as expected!";
498 } else if (m_warnings.empty()) {
499 txt += errorsCountTxt(m_errors) + txtWontLoad;
500 } else {
501 txt += errorsCountTxt(m_errors) + " and " +
502 warningsCountTxt(m_warnings) + txtWontLoad;
503 }
504 }
505 m_statusLabel.set_markup(txt);
506
507 // update status icon
508 m_statusImage.set(
509 m_issues.empty() ? m_successIcon : !m_errors.empty() ? m_errorIcon : m_warningIcon
510 );
511 }
512
513 #endif // USE_LS_SCRIPTVM
514
515 void ScriptEditor::onTextErased(const Gtk::TextBuffer::iterator& itStart, const Gtk::TextBuffer::iterator& itEnd) {
516 //printf("erased\n");
517 #if USE_LS_SCRIPTVM
518 m_textBuffer->remove_all_tags(m_textBuffer->begin(), m_textBuffer->end());
519 updateSyntaxHighlightingByVM();
520 updateParserIssuesByVM();
521 updateStatusBar();
522 #else
523 Gtk::TextBuffer::iterator itStart2 = itStart;
524 if (itStart2.inside_word() || itStart2.ends_word())
525 itStart2.backward_word_start();
526
527 Gtk::TextBuffer::iterator itEnd2 = itEnd;
528 if (itEnd2.inside_word()) itEnd2.forward_word_end();
529
530 m_textBuffer->remove_all_tags(itStart2, itEnd2);
531 #endif // USE_LS_SCRIPTVM
532 }
533
534 bool ScriptEditor::on_motion_notify_event(GdkEventMotion* e) {
535 #if USE_LS_SCRIPTVM
536 //TODO: event throttling would be a good idea here
537 updateIssueTooltip(e);
538 #endif
539 return ManagedWindow::on_motion_notify_event(e);
540 }
541
542 void ScriptEditor::onMenuChangeFontSize() {
543 //TODO: for GTKMM >= 3.2 class Gtk::FontChooser could be used instead
544 Gtk::Dialog dialog(_("Font Size"), true /*modal*/);
545 Gtk::HBox hbox;
546 hbox.set_spacing(6);
547
548 Gtk::Label label(_("Editor's Font Size:"), Gtk::ALIGN_START);
549 hbox.pack_start(label, Gtk::PACK_SHRINK);
550
551 Gtk::SpinButton spinButton;
552 spinButton.set_range(4, 80);
553 spinButton.set_increments(1, 10);
554 spinButton.set_value(currentFontSize());
555 hbox.pack_start(spinButton);
556
557 dialog.get_vbox()->pack_start(hbox);
558 dialog.add_button(_("_OK"), 0);
559 dialog.add_button(_("_Cancel"), 1);
560
561 dialog.show_all_children();
562
563 if (!dialog.run()) { // OK selected ...
564 const int newFontSize = spinButton.get_value_as_int();
565 if (newFontSize >= 4)
566 setFontSize(newFontSize, true);
567 }
568 }
569
570 bool ScriptEditor::onWindowDelete(GdkEventAny* e) {
571 //printf("onWindowDelete\n");
572
573 if (!isModified()) return false; // propagate event further (which will close this window)
574
575 gchar* msg = g_strdup_printf(_("Apply changes to instrument script \"%s\" before closing?"),
576 m_script->Name.c_str());
577 Gtk::MessageDialog dialog(*this, msg, false, Gtk::MESSAGE_WARNING, Gtk::BUTTONS_NONE);
578 g_free(msg);
579 dialog.set_secondary_text(_("If you close without applying, your changes will be lost."));
580 dialog.add_button(_("Close _Without Applying"), Gtk::RESPONSE_NO);
581 dialog.add_button(_("_Cancel"), Gtk::RESPONSE_CANCEL);
582 dialog.add_button(_("_Apply"), Gtk::RESPONSE_YES);
583 dialog.set_default_response(Gtk::RESPONSE_YES);
584 int response = dialog.run();
585 dialog.hide();
586
587 // user decided to close script editor without saving
588 if (response == Gtk::RESPONSE_NO)
589 return false; // propagate event further (which will close this window)
590
591 // user cancelled dialog, thus don't close script editor
592 if (response == Gtk::RESPONSE_CANCEL) {
593 show();
594 return true; // drop event (prevents closing this window)
595 }
596
597 // user wants to apply the changes, afterwards close window
598 if (response == Gtk::RESPONSE_YES) {
599 onButtonApply();
600 return false; // propagate event further (which will close this window)
601 }
602
603 // should never ever make it to this point actually
604 return false;
605 }
606
607 bool ScriptEditor::isModified() const {
608 return m_textBuffer->get_modified();
609 }
610
611 void ScriptEditor::onModifiedChanged() {
612 m_applyButton.set_sensitive(isModified());
613 #if USE_LS_SCRIPTVM
614 updateStatusBar();
615 #endif
616 }
617
618 void ScriptEditor::onButtonCancel() {
619 bool dropEvent = onWindowDelete(NULL);
620 if (dropEvent) return;
621 hide();
622 }
623
624 void ScriptEditor::onButtonApply() {
625 signal_script_to_be_changed.emit(m_script);
626 m_script->SetScriptAsText(m_textBuffer->get_text());
627 signal_script_changed.emit(m_script);
628 m_textBuffer->set_modified(false);
629 }
630
631 void ScriptEditor::onWindowHide() {
632 delete this; // this is the end, my friend
633 }

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