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

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revision 2610 by schoenebeck, Sun Jun 8 19:09:26 2014 UTC revision 3158 by schoenebeck, Mon May 8 18:05:35 2017 UTC
# Line 1  Line 1 
1  /*  /*
2      Copyright (c) 2014 Christian Schoenebeck      Copyright (c) 2014-2016 Christian Schoenebeck
3            
4      This file is part of "gigedit" and released under the terms of the      This file is part of "gigedit" and released under the terms of the
5      GNU General Public License version 2.      GNU General Public License version 2.
# Line 8  Line 8 
8  #include "scripteditor.h"  #include "scripteditor.h"
9  #include "global.h"  #include "global.h"
10    
11    #if !USE_LS_SCRIPTVM
12    
13  static const std::string _keywords[] = {  static const std::string _keywords[] = {
14      "on", "end", "declare", "while", "if", "or", "and", "not", "else", "case",      "on", "end", "declare", "while", "if", "or", "and", "not", "else", "case",
15      "select", "to", "const", "polyphonic", "mod"      "select", "to", "const", "polyphonic", "mod"
# Line 31  static bool isEvent(const Glib::ustring& Line 33  static bool isEvent(const Glib::ustring&
33      return false;      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() :  ScriptEditor::ScriptEditor() :
62      m_applyButton(Gtk::Stock::APPLY), m_cancelButton(Gtk::Stock::CANCEL)      m_statusLabel("",  Gtk::ALIGN_START),
63        m_applyButton(Gtk::Stock::APPLY),
64        m_cancelButton(Gtk::Stock::CANCEL)
65  {  {
66      m_script = NULL;      m_script = NULL;
67    #if USE_LS_SCRIPTVM
68        m_vm = NULL;
69    #endif
70    
71        // depending on GTK version and installed themes, there may be different
72        // icons, and different names for them, so for each type of icon we use,
73        // we provide a list of possible icon names, the first one found to be
74        // installed on the local system from the list will be used and loaded for
75        // the respective purpose (so order matters in those lists)
76        //
77        // (see https://developer.gnome.org/gtkmm/stable/namespaceGtk_1_1Stock.html for
78        // available icon names)
79        std::vector<std::string> errorIconNames;
80        errorIconNames.push_back("dialog-error");
81        errorIconNames.push_back("media-record");
82        errorIconNames.push_back("process-stop");
83    
84        std::vector<std::string> warningIconNames;
85        warningIconNames.push_back("dialog-warning-symbolic");
86        warningIconNames.push_back("dialog-warning");
87    
88        std::vector<std::string> successIconNames;
89        successIconNames.push_back("emblem-default");
90        successIconNames.push_back("tools-check-spelling");
91    
92        m_errorIcon = createIcon(errorIconNames, get_screen());
93        m_warningIcon = createIcon(warningIconNames, get_screen());
94        m_successIcon = createIcon(successIconNames, get_screen());
95    
96      add(m_vbox);      add(m_vbox);
97    
98      m_tagTable = Gtk::TextBuffer::TagTable::create();      m_tagTable = Gtk::TextBuffer::TagTable::create();
99    
100      m_keywordTag = Gtk::TextBuffer::Tag::create();      m_keywordTag = Gtk::TextBuffer::Tag::create();
101        m_keywordTag->property_foreground() = "#000000"; // black
102      m_keywordTag->property_weight() = PANGO_WEIGHT_BOLD;      m_keywordTag->property_weight() = PANGO_WEIGHT_BOLD;
103      m_tagTable->add(m_keywordTag);      m_tagTable->add(m_keywordTag);
104    
105      m_eventTag = Gtk::TextBuffer::Tag::create();      m_eventTag = Gtk::TextBuffer::Tag::create();
106      m_eventTag->property_foreground() = "blue";      m_eventTag->property_foreground() = "#07c0cf"; // cyan 1
107      m_eventTag->property_weight() = PANGO_WEIGHT_BOLD;      m_eventTag->property_weight() = PANGO_WEIGHT_BOLD;
108      m_tagTable->add(m_eventTag);      m_tagTable->add(m_eventTag);
109        
110        m_variableTag = Gtk::TextBuffer::Tag::create();
111        m_variableTag->property_foreground() = "#790cc4"; // magenta
112        m_tagTable->add(m_variableTag);
113        
114        m_functionTag = Gtk::TextBuffer::Tag::create();
115        m_functionTag->property_foreground() = "#1ba1dd"; // cyan 2
116        m_tagTable->add(m_functionTag);
117        
118        m_numberTag = Gtk::TextBuffer::Tag::create();
119        m_numberTag->property_foreground() = "#c4950c"; // yellow
120        m_tagTable->add(m_numberTag);
121    
122        m_stringTag = Gtk::TextBuffer::Tag::create();
123        m_stringTag->property_foreground() = "#c40c0c"; // red
124        m_tagTable->add(m_stringTag);
125    
126        m_commentTag = Gtk::TextBuffer::Tag::create();
127        m_commentTag->property_foreground() = "#9c9c9c"; // gray
128        m_tagTable->add(m_commentTag);
129    
130        m_preprocTag = Gtk::TextBuffer::Tag::create();
131        m_preprocTag->property_foreground() = "#2f8a33"; // green
132        m_tagTable->add(m_preprocTag);
133    
134        m_errorTag = Gtk::TextBuffer::Tag::create();
135        m_errorTag->property_background() = "#ff9393"; // red
136        m_tagTable->add(m_errorTag);
137    
138        m_warningTag = Gtk::TextBuffer::Tag::create();
139        m_warningTag->property_background() = "#fffd7c"; // yellow
140        m_tagTable->add(m_warningTag);
141    
142        // create menu
143        m_actionGroup = Gtk::ActionGroup::create();
144        m_actionGroup->add(Gtk::Action::create("MenuScript", _("_Script")));
145        m_actionGroup->add(Gtk::Action::create("Apply", _("_Apply")),
146                           Gtk::AccelKey("<control>s"),
147                           sigc::mem_fun(*this, &ScriptEditor::onButtonApply));
148        m_actionGroup->add(Gtk::Action::create("Close", _("_Close")),
149                           Gtk::AccelKey("<control>q"),
150                           sigc::mem_fun(*this, &ScriptEditor::onButtonCancel));
151        m_actionGroup->add(Gtk::Action::create("MenuEditor", _("_Editor")));
152        m_actionGroup->add(Gtk::Action::create("ChangeFont", _("_Font Size ...")),
153                           sigc::mem_fun(*this, &ScriptEditor::onMenuChangeFontSize));
154        m_uiManager = Gtk::UIManager::create();
155        m_uiManager->insert_action_group(m_actionGroup);
156        add_accel_group(m_uiManager->get_accel_group());
157        m_uiManager->add_ui_from_string(
158            "<ui>"
159            "  <menubar name='MenuBar'>"
160            "    <menu action='MenuScript'>"
161            "      <menuitem action='Apply'/>"
162            "      <separator/>"
163            "      <menuitem action='Close'/>"
164            "    </menu>"
165            "    <menu action='MenuEditor'>"
166            "      <menuitem action='ChangeFont'/>"
167            "    </menu>"
168            "  </menubar>"
169            "</ui>"
170        );
171    
172      m_textBuffer = Gtk::TextBuffer::create(m_tagTable);      m_textBuffer = Gtk::TextBuffer::create(m_tagTable);
173      m_textView.set_buffer(m_textBuffer);      m_textView.set_buffer(m_textBuffer);
174      {      setFontSize(currentFontSize(), false);
         Pango::FontDescription fdesc;  
         fdesc.set_family("monospace");  
         fdesc.set_size(10 * PANGO_SCALE);  
 #if GTKMM_MAJOR_VERSION < 3  
         m_textView.modify_font(fdesc);  
 #else  
         m_textView.override_font(fdesc);  
 #endif  
     }  
175      m_scrolledWindow.add(m_textView);      m_scrolledWindow.add(m_textView);
176      m_scrolledWindow.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);      m_scrolledWindow.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
177    
178        Gtk::Widget* menuBar = m_uiManager->get_widget("/MenuBar");
179        m_vbox.pack_start(*menuBar, Gtk::PACK_SHRINK);
180      m_vbox.pack_start(m_scrolledWindow);      m_vbox.pack_start(m_scrolledWindow);
181    
182      m_buttonBox.set_layout(Gtk::BUTTONBOX_END);      m_buttonBox.set_layout(Gtk::BUTTONBOX_END);
# Line 68  ScriptEditor::ScriptEditor() : Line 185  ScriptEditor::ScriptEditor() :
185      m_applyButton.set_can_default();      m_applyButton.set_can_default();
186      m_applyButton.set_sensitive(false);      m_applyButton.set_sensitive(false);
187      m_applyButton.grab_focus();      m_applyButton.grab_focus();
188      m_vbox.pack_start(m_buttonBox, Gtk::PACK_SHRINK);  
189    #if GTKMM_MAJOR_VERSION >= 3
190        m_statusImage.set_margin_left(6);
191        m_statusImage.set_margin_right(6);
192    #else
193        m_statusHBox.set_spacing(6);
194    #endif
195    
196        m_statusHBox.pack_start(m_statusImage, Gtk::PACK_SHRINK);
197        m_statusHBox.pack_start(m_statusLabel);
198        m_statusHBox.show_all_children();
199    
200        m_footerHBox.pack_start(m_statusHBox);
201        m_footerHBox.pack_start(m_buttonBox, Gtk::PACK_SHRINK);
202    
203        m_vbox.pack_start(m_footerHBox, Gtk::PACK_SHRINK);
204    
205      m_applyButton.signal_clicked().connect(      m_applyButton.signal_clicked().connect(
206          sigc::mem_fun(*this, &ScriptEditor::onButtonApply)          sigc::mem_fun(*this, &ScriptEditor::onButtonApply)
# Line 94  ScriptEditor::ScriptEditor() : Line 226  ScriptEditor::ScriptEditor() :
226          sigc::mem_fun(*this, &ScriptEditor::onWindowHide)          sigc::mem_fun(*this, &ScriptEditor::onWindowHide)
227      );      );
228    
229      show_all_children();      signal_delete_event().connect(
230            sigc::mem_fun(*this, &ScriptEditor::onWindowDelete)
231        );
232    
233      resize(460,300);      show_all_children();
234  }  }
235    
236  ScriptEditor::~ScriptEditor() {  ScriptEditor::~ScriptEditor() {
237      printf("ScriptEditor destruct\n");      printf("ScriptEditor destruct\n");
238    #if USE_LS_SCRIPTVM
239        if (m_vm) delete m_vm;
240    #endif
241    }
242    
243    int ScriptEditor::currentFontSize() const {
244    #if defined(__APPLE__)
245        const int defaultFontSize = 13;
246    #else
247        const int defaultFontSize = 10;
248    #endif
249        const int settingFontSize = Settings::singleton()->scriptEditorFontSize;
250        const int fontSize = (settingFontSize > 0) ? settingFontSize : defaultFontSize;
251        return fontSize;
252    }
253    
254    void ScriptEditor::setFontSize(int size, bool save) {
255        //printf("setFontSize(%d,%d)\n", size, save);
256        Pango::FontDescription fdesc;
257        fdesc.set_family("monospace");
258        fdesc.set_size(size * PANGO_SCALE);
259    #if GTKMM_MAJOR_VERSION < 3
260        m_textView.modify_font(fdesc);
261    #else
262        m_textView.override_font(fdesc);
263    #endif
264        if (save) Settings::singleton()->scriptEditorFontSize = size;
265  }  }
266    
267  void ScriptEditor::setScript(gig::Script* script) {  void ScriptEditor::setScript(gig::Script* script) {
# Line 119  void ScriptEditor::setScript(gig::Script Line 280  void ScriptEditor::setScript(gig::Script
280  }  }
281    
282  void ScriptEditor::onTextInserted(const Gtk::TextBuffer::iterator& itEnd, const Glib::ustring& txt, int length) {  void ScriptEditor::onTextInserted(const Gtk::TextBuffer::iterator& itEnd, const Glib::ustring& txt, int length) {
283        //printf("onTextInserted()\n");
284    #if USE_LS_SCRIPTVM
285        m_textBuffer->remove_all_tags(m_textBuffer->begin(), m_textBuffer->end());
286        updateSyntaxHighlightingByVM();
287        updateParserIssuesByVM();
288        updateStatusBar();
289    #else
290      //printf("inserted %d\n", length);      //printf("inserted %d\n", length);
291      Gtk::TextBuffer::iterator itStart = itEnd;      Gtk::TextBuffer::iterator itStart = itEnd;
292      itStart.backward_chars(length);      itStart.backward_chars(length);
# Line 159  void ScriptEditor::onTextInserted(const Line 327  void ScriptEditor::onTextInserted(const
327            
328      EOF_REACHED:      EOF_REACHED:
329      ;      ;
330        
331    #endif // USE_LS_SCRIPTVM
332    }
333    
334    #if USE_LS_SCRIPTVM
335    
336    LinuxSampler::ScriptVM* ScriptEditor::GetScriptVM() {
337        if (!m_vm) m_vm = LinuxSampler::ScriptVMFactory::Create("gig");
338        return m_vm;
339  }  }
340    
341    static void getIteratorsForIssue(Glib::RefPtr<Gtk::TextBuffer>& txtbuf, const LinuxSampler::ParserIssue& issue, Gtk::TextBuffer::iterator& start, Gtk::TextBuffer::iterator& end) {
342        start = txtbuf->get_iter_at_line_index(issue.firstLine - 1, issue.firstColumn - 1);
343        end = start;
344        end.forward_lines(issue.lastLine - issue.firstLine);
345        end.forward_chars(
346            (issue.lastLine != issue.firstLine)
347                ? issue.lastColumn - 1
348                : issue.lastColumn - issue.firstColumn + 1
349        );
350    }
351    
352    static void applyCodeTag(Glib::RefPtr<Gtk::TextBuffer>& txtbuf, const LinuxSampler::VMSourceToken& token, Glib::RefPtr<Gtk::TextBuffer::Tag>& tag) {
353        Gtk::TextBuffer::iterator itStart =
354            txtbuf->get_iter_at_line_index(token.firstLine(), token.firstColumn());
355        Gtk::TextBuffer::iterator itEnd = itStart;
356        const int length = token.text().length();
357        itEnd.forward_chars(length);
358        txtbuf->apply_tag(tag, itStart, itEnd);
359    }
360    
361    static void applyCodeTag(Glib::RefPtr<Gtk::TextBuffer>& txtbuf, const LinuxSampler::ParserIssue& issue, Glib::RefPtr<Gtk::TextBuffer::Tag>& tag) {
362        Gtk::TextBuffer::iterator itStart, itEnd;
363        getIteratorsForIssue(txtbuf, issue, itStart, itEnd);
364        txtbuf->apply_tag(tag, itStart, itEnd);
365    }
366    
367    void ScriptEditor::updateSyntaxHighlightingByVM() {
368        GetScriptVM();
369        const std::string s = m_textBuffer->get_text();
370        if (s.empty()) return;
371        std::vector<LinuxSampler::VMSourceToken> tokens = m_vm->syntaxHighlighting(s);
372    
373        for (int i = 0; i < tokens.size(); ++i) {
374            const LinuxSampler::VMSourceToken& token = tokens[i];
375    
376            if (token.isKeyword()) {
377                applyCodeTag(m_textBuffer, token, m_keywordTag);
378            } else if (token.isVariableName()) {
379                applyCodeTag(m_textBuffer, token, m_variableTag);
380            } else if (token.isIdentifier()) {
381                if (token.isEventHandlerName()) {
382                    applyCodeTag(m_textBuffer, token, m_eventTag);
383                } else { // a function ...
384                    applyCodeTag(m_textBuffer, token, m_functionTag);
385                }
386            } else if (token.isNumberLiteral()) {
387                applyCodeTag(m_textBuffer, token, m_numberTag);
388            } else if (token.isStringLiteral()) {
389                applyCodeTag(m_textBuffer, token, m_stringTag);
390            } else if (token.isComment()) {
391                applyCodeTag(m_textBuffer, token, m_commentTag);
392            } else if (token.isPreprocessor()) {
393                applyCodeTag(m_textBuffer, token, m_preprocTag);
394            } else if (token.isNewLine()) {
395            }
396        }
397    }
398    
399    void ScriptEditor::updateParserIssuesByVM() {
400        GetScriptVM();
401        const std::string s = m_textBuffer->get_text();
402        LinuxSampler::VMParserContext* parserContext = m_vm->loadScript(s);
403        m_issues = parserContext->issues();
404        m_errors = parserContext->errors();
405        m_warnings = parserContext->warnings();
406    
407        if (!s.empty()) {
408            for (int i = 0; i < m_issues.size(); ++i) {
409                const LinuxSampler::ParserIssue& issue = m_issues[i];
410    
411                if (issue.isErr()) {
412                    applyCodeTag(m_textBuffer, issue, m_errorTag);
413                } else if (issue.isWrn()) {
414                    applyCodeTag(m_textBuffer, issue, m_warningTag);
415                }
416            }
417        }
418    
419        delete parserContext;
420    }
421    
422    void ScriptEditor::updateIssueTooltip(GdkEventMotion* e) {
423        int x, y;
424        m_textView.window_to_buffer_coords(Gtk::TEXT_WINDOW_TEXT, int(e->x), int(e->y), x, y);
425    
426        Gtk::TextBuffer::iterator it;
427        m_textView.get_iter_at_location(it, x, y);
428        
429        const int line = it.get_line();
430        const int column = it.get_line_offset();
431    
432        //printf("mouse at l%d c%d\n", line, column);
433    
434        for (int i = 0; i < m_issues.size(); ++i) {
435            const LinuxSampler::ParserIssue& issue = m_issues[i];
436            const int firstLine   = issue.firstLine - 1;
437            const int firstColumn = issue.firstColumn - 1;
438            const int lastLine    = issue.lastLine - 1;
439            const int lastColumn  = issue.lastColumn - 1;
440            if (firstLine <= line && line <= lastLine &&
441                (firstLine != line || firstColumn <= column) &&
442                (lastLine  != line || lastColumn  >= column))
443            {
444                m_textView.set_tooltip_markup(
445                    (issue.isErr() ? "<span foreground=\"#ff9393\">ERROR:</span> " : "<span foreground=\"#c4950c\">Warning:</span> ") +
446                    issue.txt
447                );
448                return;
449            }
450        }
451    
452        m_textView.set_tooltip_markup("");
453    }
454    
455    static std::string warningsCountTxt(const std::vector<LinuxSampler::ParserIssue> warnings) {
456        std::string txt = "<span foreground=\"#c4950c\">" + ToString(warnings.size());
457        txt += (warnings.size() == 1) ? " Warning" : " Warnings";
458        txt += "</span>";
459        return txt;
460    }
461    
462    static std::string errorsCountTxt(const std::vector<LinuxSampler::ParserIssue> errors) {
463        std::string txt = "<span foreground=\"#c40c0c\">" + ToString(errors.size());
464        txt += (errors.size() == 1) ? " Error" : " Errors";
465        txt += "</span>";
466        return txt;
467    }
468    
469    void ScriptEditor::updateStatusBar() {
470        // update status text
471        std::string txt;
472        if (m_issues.empty()) {
473            txt = "No issues with this script.";
474        } else {
475            const char* txtWontLoad = ". Sampler won't load instruments using this script!";
476            txt = "There ";
477            txt += (m_errors.size() <= 1 && m_warnings.size() <= 1) ? "is " : "are ";
478            if (m_errors.empty()) {
479                txt += warningsCountTxt(m_warnings) + ". Script will load, but might not behave as expected!";
480            } else if (m_warnings.empty()) {
481                txt += errorsCountTxt(m_errors) + txtWontLoad;
482            } else {
483                txt += errorsCountTxt(m_errors) + " and " +
484                       warningsCountTxt(m_warnings) + txtWontLoad;
485            }
486        }
487        m_statusLabel.set_markup(txt);
488    
489        // update status icon
490        m_statusImage.set(
491            m_issues.empty() ? m_successIcon : !m_errors.empty() ? m_errorIcon : m_warningIcon
492        );
493    }
494    
495    #endif // USE_LS_SCRIPTVM
496    
497  void ScriptEditor::onTextErased(const Gtk::TextBuffer::iterator& itStart, const Gtk::TextBuffer::iterator& itEnd) {  void ScriptEditor::onTextErased(const Gtk::TextBuffer::iterator& itStart, const Gtk::TextBuffer::iterator& itEnd) {
498      //printf("erased\n");      //printf("erased\n");
499    #if USE_LS_SCRIPTVM
500        m_textBuffer->remove_all_tags(m_textBuffer->begin(), m_textBuffer->end());
501        updateSyntaxHighlightingByVM();
502        updateParserIssuesByVM();
503        updateStatusBar();
504    #else
505      Gtk::TextBuffer::iterator itStart2 = itStart;      Gtk::TextBuffer::iterator itStart2 = itStart;
506      if (itStart2.inside_word() || itStart2.ends_word())      if (itStart2.inside_word() || itStart2.ends_word())
507          itStart2.backward_word_start();          itStart2.backward_word_start();
# Line 171  void ScriptEditor::onTextErased(const Gt Line 510  void ScriptEditor::onTextErased(const Gt
510      if (itEnd2.inside_word()) itEnd2.forward_word_end();      if (itEnd2.inside_word()) itEnd2.forward_word_end();
511    
512      m_textBuffer->remove_all_tags(itStart2, itEnd2);      m_textBuffer->remove_all_tags(itStart2, itEnd2);
513    #endif // USE_LS_SCRIPTVM
514    }
515    
516    bool ScriptEditor::on_motion_notify_event(GdkEventMotion* e) {
517    #if USE_LS_SCRIPTVM
518        //TODO: event throttling would be a good idea here
519        updateIssueTooltip(e);
520    #endif
521        return ManagedWindow::on_motion_notify_event(e);
522    }
523    
524    void ScriptEditor::onMenuChangeFontSize() {
525        //TODO: for GTKMM >= 3.2 class Gtk::FontChooser could be used instead
526        Gtk::Dialog dialog(_("Font Size"), true /*modal*/);
527        Gtk::HBox hbox;
528        hbox.set_spacing(6);
529    
530        Gtk::Label label(_("Editor's Font Size:"), Gtk::ALIGN_START);
531        hbox.pack_start(label, Gtk::PACK_SHRINK);
532    
533        Gtk::SpinButton spinButton;
534        spinButton.set_range(4, 80);
535        spinButton.set_increments(1, 10);
536        spinButton.set_value(currentFontSize());
537        hbox.pack_start(spinButton);
538    
539        dialog.get_vbox()->pack_start(hbox);
540        dialog.add_button(_("_OK"), 0);
541        dialog.add_button(_("_Cancel"), 1);
542    
543        dialog.show_all_children();
544    
545        if (!dialog.run()) { // OK selected ...
546            const int newFontSize = spinButton.get_value_as_int();
547            if (newFontSize >= 4)
548                setFontSize(newFontSize, true);
549        }
550    }
551    
552    bool ScriptEditor::onWindowDelete(GdkEventAny* e) {
553        //printf("onWindowDelete\n");
554    
555        if (!isModified()) return false; // propagate event further (which will close this window)
556    
557        gchar* msg = g_strdup_printf(_("Apply changes to instrument script \"%s\" before closing?"),
558                                     m_script->Name.c_str());
559        Gtk::MessageDialog dialog(*this, msg, false, Gtk::MESSAGE_WARNING, Gtk::BUTTONS_NONE);
560        g_free(msg);
561        dialog.set_secondary_text(_("If you close without applying, your changes will be lost."));
562        dialog.add_button(_("Close _Without Applying"), Gtk::RESPONSE_NO);
563        dialog.add_button(_("_Cancel"), Gtk::RESPONSE_CANCEL);
564        dialog.add_button(_("_Apply"), Gtk::RESPONSE_YES);
565        dialog.set_default_response(Gtk::RESPONSE_YES);
566        int response = dialog.run();
567        dialog.hide();
568    
569        // user decided to close script editor without saving
570        if (response == Gtk::RESPONSE_NO)
571            return false; // propagate event further (which will close this window)
572    
573        // user cancelled dialog, thus don't close script editor
574        if (response == Gtk::RESPONSE_CANCEL) {
575            show();
576            return true; // drop event (prevents closing this window)
577        }
578    
579        // user wants to apply the changes, afterwards close window
580        if (response == Gtk::RESPONSE_YES) {
581            onButtonApply();
582            return false; // propagate event further (which will close this window)
583        }
584    
585        // should never ever make it to this point actually
586        return false;
587    }
588    
589    bool ScriptEditor::isModified() const {
590        return m_textBuffer->get_modified();
591  }  }
592    
593  void ScriptEditor::onModifiedChanged() {  void ScriptEditor::onModifiedChanged() {
594      m_applyButton.set_sensitive( m_textBuffer->get_modified() );      m_applyButton.set_sensitive(isModified());
595    #if USE_LS_SCRIPTVM
596        updateStatusBar();
597    #endif
598  }  }
599    
600  void ScriptEditor::onButtonCancel() {  void ScriptEditor::onButtonCancel() {
601        bool dropEvent = onWindowDelete(NULL);
602        if (dropEvent) return;
603      hide();      hide();
604  }  }
605    
606  void ScriptEditor::onButtonApply() {  void ScriptEditor::onButtonApply() {
607        signal_script_to_be_changed.emit(m_script);
608      m_script->SetScriptAsText(m_textBuffer->get_text());      m_script->SetScriptAsText(m_textBuffer->get_text());
609        signal_script_changed.emit(m_script);
610      m_textBuffer->set_modified(false);      m_textBuffer->set_modified(false);
611  }  }
612    
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