src/gigedit/scripteditor.cpp

/*
    Copyright (c) 2014-2016 Christian Schoenebeck
    
    This file is part of "gigedit" and released under the terms of the
    GNU General Public License version 2.
*/

#include "scripteditor.h"
#include "global.h"
#if USE_LS_SCRIPTVM
# include <linuxsampler/scriptvm/ScriptVM.h>
#endif

#if !USE_LS_SCRIPTVM

static const std::string _keywords[] = {
    "on", "end", "declare", "while", "if", "or", "and", "not", "else", "case",
    "select", "to", "const", "polyphonic", "mod"
};
static int _keywordsSz = sizeof(_keywords) / sizeof(std::string);

static const std::string _eventNames[] = {
    "init", "note", "release", "controller"
};
static int _eventNamesSz = sizeof(_eventNames) / sizeof(std::string); 

static bool isKeyword(const Glib::ustring& s) {
    for (int i = 0; i < _keywordsSz; ++i)
        if (_keywords[i] == s) return true;
    return false;
}

static bool isEvent(const Glib::ustring& s) {
    for (int i = 0; i < _eventNamesSz; ++i)
        if (_eventNames[i] == s) return true;
    return false;
}

#endif // !USE_LS_SCRIPTVM

ScriptEditor::ScriptEditor() :
    m_applyButton(_("_Apply"), true),
    m_cancelButton(_("_Cancel"), true)
{
    m_script = NULL;
    m_vm = NULL;

    add(m_vbox);

    m_tagTable = Gtk::TextBuffer::TagTable::create();

    m_keywordTag = Gtk::TextBuffer::Tag::create();
    m_keywordTag->property_weight() = PANGO_WEIGHT_BOLD;
    m_tagTable->add(m_keywordTag);

    m_eventTag = Gtk::TextBuffer::Tag::create();
    m_eventTag->property_foreground() = "blue";
    m_eventTag->property_weight() = PANGO_WEIGHT_BOLD;
    m_tagTable->add(m_eventTag);
    
    m_variableTag = Gtk::TextBuffer::Tag::create();
    m_variableTag->property_foreground() = "magenta";
    m_tagTable->add(m_variableTag);
    
    m_functionTag = Gtk::TextBuffer::Tag::create();
    m_functionTag->property_foreground() = "cyan";
    m_tagTable->add(m_functionTag);
    
    m_numberTag = Gtk::TextBuffer::Tag::create();
    m_numberTag->property_foreground() = "yellow";
    m_tagTable->add(m_numberTag);

    m_stringTag = Gtk::TextBuffer::Tag::create();
    m_stringTag->property_foreground() = "red";
    m_tagTable->add(m_stringTag);

    m_commentTag = Gtk::TextBuffer::Tag::create();
    m_commentTag->property_foreground() = "gray";
    m_tagTable->add(m_commentTag);

    m_preprocTag = Gtk::TextBuffer::Tag::create();
    m_preprocTag->property_foreground() = "green";
    m_tagTable->add(m_preprocTag);

    m_textBuffer = Gtk::TextBuffer::create(m_tagTable);
    m_textView.set_buffer(m_textBuffer);
    {
        Pango::FontDescription fdesc;
        fdesc.set_family("monospace");
#if defined(__APPLE__)
        fdesc.set_size(12 * PANGO_SCALE);
#else
        fdesc.set_size(10 * PANGO_SCALE);
#endif
#if GTKMM_MAJOR_VERSION < 3
        m_textView.modify_font(fdesc);
#else
        m_textView.override_font(fdesc);
#endif
    }
    m_scrolledWindow.add(m_textView);
    m_scrolledWindow.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
    m_vbox.pack_start(m_scrolledWindow);

    m_buttonBox.set_layout(Gtk::BUTTONBOX_END);
    m_buttonBox.pack_start(m_applyButton);
    m_buttonBox.pack_start(m_cancelButton);
    m_applyButton.set_can_default();
    m_applyButton.set_sensitive(false);
    m_applyButton.grab_focus();
    m_vbox.pack_start(m_buttonBox, Gtk::PACK_SHRINK);

    m_applyButton.signal_clicked().connect(
        sigc::mem_fun(*this, &ScriptEditor::onButtonApply)
    );

    m_cancelButton.signal_clicked().connect(
        sigc::mem_fun(*this, &ScriptEditor::onButtonCancel)
    );
    
    m_textBuffer->signal_insert().connect(
        sigc::mem_fun(*this, &ScriptEditor::onTextInserted)
    );
    
    m_textBuffer->signal_erase().connect(
        sigc::mem_fun(*this, &ScriptEditor::onTextErased)
    );
    
    m_textBuffer->signal_modified_changed().connect(
        sigc::mem_fun(*this, &ScriptEditor::onModifiedChanged)
    );
    
    signal_hide().connect(
        sigc::mem_fun(*this, &ScriptEditor::onWindowHide)
    );

    show_all_children();

    resize(460,300);
}

ScriptEditor::~ScriptEditor() {
    printf("ScriptEditor destruct\n");
    if (m_vm) delete m_vm;
}

void ScriptEditor::setScript(gig::Script* script) {
    m_script = script;
    if (!script) {
        set_title(_("No Script"));
        return;
    }

    set_title(std::string(_("Instrument Script")) + " - \"" + script->Name + "\"");
    
    std::string txt = script->GetScriptAsText();
    //printf("text : '%s'\n", txt.c_str());
    m_textBuffer->set_text(txt);
    m_textBuffer->set_modified(false);
}

void ScriptEditor::onTextInserted(const Gtk::TextBuffer::iterator& itEnd, const Glib::ustring& txt, int length) {
#if USE_LS_SCRIPTVM
    updateSyntaxHighlightingByVM();
#else
    //printf("inserted %d\n", length);
    Gtk::TextBuffer::iterator itStart = itEnd;
    itStart.backward_chars(length);

    Gtk::TextBuffer::iterator it = itStart;
    it.backward_word_start();

    bool eofReached = false;
    while (it <= itEnd) {
        Gtk::TextBuffer::iterator itWordStart = it;
        if (!it.forward_word_end()) {
            eofReached = true;
            it = itEnd;
        }

        Glib::ustring s = m_textBuffer->get_text(itWordStart, it, false);
        //printf("{%s}\n", s.c_str());
        if (isKeyword(s))
            m_textBuffer->apply_tag(m_keywordTag, itWordStart, it);
        else if (isEvent(s)) {
            // check if previous word is "on"
            Gtk::TextBuffer::iterator itPreviousWordStart = itWordStart;
            if (itPreviousWordStart.backward_word_start()) {
                Gtk::TextBuffer::iterator itPreviousWordEnd = itPreviousWordStart;
                itPreviousWordEnd.forward_word_end();
                if (m_textBuffer->get_text(itPreviousWordStart, itPreviousWordEnd, false) == "on") {
                    m_textBuffer->apply_tag(m_eventTag, itWordStart, it);
                }
            }
        }

        if (eofReached) break;

        while (!it.inside_word())
            if (!it.forward_char())
                goto EOF_REACHED;
    }
    
    EOF_REACHED:
    ;
    
#endif // USE_LS_SCRIPTVM
}

#if USE_LS_SCRIPTVM

static void applyCodeTag(Glib::RefPtr<Gtk::TextBuffer>& txtbuf, const LinuxSampler::VMSourceToken& token, Glib::RefPtr<Gtk::TextBuffer::Tag>& tag) {
    Gtk::TextBuffer::iterator itStart =
        txtbuf->get_iter_at_line_index(token.firstLine(), token.firstColumn());
    Gtk::TextBuffer::iterator itEnd = itStart;
    const int length = token.text().length();
    itEnd.forward_chars(length);
    txtbuf->apply_tag(tag, itStart, itEnd);
}

void ScriptEditor::updateSyntaxHighlightingByVM() {
    if (!m_vm) m_vm = new LinuxSampler::ScriptVM();
    const std::string s = m_textBuffer->get_text();
    std::vector<LinuxSampler::VMSourceToken> tokens = m_vm->syntaxHighlighting(s);

    m_textBuffer->remove_all_tags(m_textBuffer->begin(), m_textBuffer->end());

    for (int i = 0; i < tokens.size(); ++i) {
        const LinuxSampler::VMSourceToken& token = tokens[i];

        if (token.isKeyword()) {
            applyCodeTag(m_textBuffer, token, m_keywordTag);
        } else if (token.isVariableName()) {
            applyCodeTag(m_textBuffer, token, m_variableTag);
        } else if (token.isIdentifier()) {
            if (token.isEventHandlerName()) {
                applyCodeTag(m_textBuffer, token, m_eventTag);
            } else { // a function ...
                applyCodeTag(m_textBuffer, token, m_functionTag);
            }
        } else if (token.isNumberLiteral()) {
            applyCodeTag(m_textBuffer, token, m_numberTag);
        } else if (token.isStringLiteral()) {
            applyCodeTag(m_textBuffer, token, m_stringTag);
        } else if (token.isComment()) {
            applyCodeTag(m_textBuffer, token, m_commentTag);
        } else if (token.isPreprocessor()) {
            applyCodeTag(m_textBuffer, token, m_preprocTag);
        } else if (token.isNewLine()) {
        }
    }
}

#endif // USE_LS_SCRIPTVM

void ScriptEditor::onTextErased(const Gtk::TextBuffer::iterator& itStart, const Gtk::TextBuffer::iterator& itEnd) {
    //printf("erased\n");
#if USE_LS_SCRIPTVM
    updateSyntaxHighlightingByVM();
#else
    Gtk::TextBuffer::iterator itStart2 = itStart;
    if (itStart2.inside_word() || itStart2.ends_word())
        itStart2.backward_word_start();
    
    Gtk::TextBuffer::iterator itEnd2 = itEnd;
    if (itEnd2.inside_word()) itEnd2.forward_word_end();

    m_textBuffer->remove_all_tags(itStart2, itEnd2);
#endif // USE_LS_SCRIPTVM
}

void ScriptEditor::onModifiedChanged() {
    m_applyButton.set_sensitive( m_textBuffer->get_modified() );
}

void ScriptEditor::onButtonCancel() {
    hide();
}

void ScriptEditor::onButtonApply() {
    m_script->SetScriptAsText(m_textBuffer->get_text());
    m_textBuffer->set_modified(false);
}

void ScriptEditor::onWindowHide() {
    delete this; // this is the end, my friend
}
1	/*
2	Copyright (c) 2014-2016 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	#if USE_LS_SCRIPTVM
11	# include <linuxsampler/scriptvm/ScriptVM.h>
12	#endif
13
14	#if !USE_LS_SCRIPTVM
15
16	static const std::string _keywords[] = {
17	"on", "end", "declare", "while", "if", "or", "and", "not", "else", "case",
18	"select", "to", "const", "polyphonic", "mod"
19	};
20	static int _keywordsSz = sizeof(_keywords) / sizeof(std::string);
21
22	static const std::string _eventNames[] = {
23	"init", "note", "release", "controller"
24	};
25	static int _eventNamesSz = sizeof(_eventNames) / sizeof(std::string);
26
27	static bool isKeyword(const Glib::ustring& s) {
28	for (int i = 0; i < _keywordsSz; ++i)
29	if (_keywords[i] == s) return true;
30	return false;
31	}
32
33	static bool isEvent(const Glib::ustring& s) {
34	for (int i = 0; i < _eventNamesSz; ++i)
35	if (_eventNames[i] == s) return true;
36	return false;
37	}
38
39	#endif // !USE_LS_SCRIPTVM
40
41	ScriptEditor::ScriptEditor() :
42	m_applyButton(_("_Apply"), true),
43	m_cancelButton(_("_Cancel"), true)
44	{
45	m_script = NULL;
46	m_vm = NULL;
47
48	add(m_vbox);
49
50	m_tagTable = Gtk::TextBuffer::TagTable::create();
51
52	m_keywordTag = Gtk::TextBuffer::Tag::create();
53	m_keywordTag->property_weight() = PANGO_WEIGHT_BOLD;
54	m_tagTable->add(m_keywordTag);
55
56	m_eventTag = Gtk::TextBuffer::Tag::create();
57	m_eventTag->property_foreground() = "blue";
58	m_eventTag->property_weight() = PANGO_WEIGHT_BOLD;
59	m_tagTable->add(m_eventTag);
60
61	m_variableTag = Gtk::TextBuffer::Tag::create();
62	m_variableTag->property_foreground() = "magenta";
63	m_tagTable->add(m_variableTag);
64
65	m_functionTag = Gtk::TextBuffer::Tag::create();
66	m_functionTag->property_foreground() = "cyan";
67	m_tagTable->add(m_functionTag);
68
69	m_numberTag = Gtk::TextBuffer::Tag::create();
70	m_numberTag->property_foreground() = "yellow";
71	m_tagTable->add(m_numberTag);
72
73	m_stringTag = Gtk::TextBuffer::Tag::create();
74	m_stringTag->property_foreground() = "red";
75	m_tagTable->add(m_stringTag);
76
77	m_commentTag = Gtk::TextBuffer::Tag::create();
78	m_commentTag->property_foreground() = "gray";
79	m_tagTable->add(m_commentTag);
80
81	m_preprocTag = Gtk::TextBuffer::Tag::create();
82	m_preprocTag->property_foreground() = "green";
83	m_tagTable->add(m_preprocTag);
84
85	m_textBuffer = Gtk::TextBuffer::create(m_tagTable);
86	m_textView.set_buffer(m_textBuffer);
87	{
88	Pango::FontDescription fdesc;
89	fdesc.set_family("monospace");
90	#if defined(__APPLE__)
91	fdesc.set_size(12 * PANGO_SCALE);
92	#else
93	fdesc.set_size(10 * PANGO_SCALE);
94	#endif
95	#if GTKMM_MAJOR_VERSION < 3
96	m_textView.modify_font(fdesc);
97	#else
98	m_textView.override_font(fdesc);
99	#endif
100	}
101	m_scrolledWindow.add(m_textView);
102	m_scrolledWindow.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
103	m_vbox.pack_start(m_scrolledWindow);
104
105	m_buttonBox.set_layout(Gtk::BUTTONBOX_END);
106	m_buttonBox.pack_start(m_applyButton);
107	m_buttonBox.pack_start(m_cancelButton);
108	m_applyButton.set_can_default();
109	m_applyButton.set_sensitive(false);
110	m_applyButton.grab_focus();
111	m_vbox.pack_start(m_buttonBox, Gtk::PACK_SHRINK);
112
113	m_applyButton.signal_clicked().connect(
114	sigc::mem_fun(*this, &ScriptEditor::onButtonApply)
115	);
116
117	m_cancelButton.signal_clicked().connect(
118	sigc::mem_fun(*this, &ScriptEditor::onButtonCancel)
119	);
120
121	m_textBuffer->signal_insert().connect(
122	sigc::mem_fun(*this, &ScriptEditor::onTextInserted)
123	);
124
125	m_textBuffer->signal_erase().connect(
126	sigc::mem_fun(*this, &ScriptEditor::onTextErased)
127	);
128
129	m_textBuffer->signal_modified_changed().connect(
130	sigc::mem_fun(*this, &ScriptEditor::onModifiedChanged)
131	);
132
133	signal_hide().connect(
134	sigc::mem_fun(*this, &ScriptEditor::onWindowHide)
135	);
136
137	show_all_children();
138
139	resize(460,300);
140	}
141
142	ScriptEditor::~ScriptEditor() {
143	printf("ScriptEditor destruct\n");
144	if (m_vm) delete m_vm;
145	}
146
147	void ScriptEditor::setScript(gig::Script* script) {
148	m_script = script;
149	if (!script) {
150	set_title(_("No Script"));
151	return;
152	}
153
154	set_title(std::string(_("Instrument Script")) + " - \"" + script->Name + "\"");
155
156	std::string txt = script->GetScriptAsText();
157	//printf("text : '%s'\n", txt.c_str());
158	m_textBuffer->set_text(txt);
159	m_textBuffer->set_modified(false);
160	}
161
162	void ScriptEditor::onTextInserted(const Gtk::TextBuffer::iterator& itEnd, const Glib::ustring& txt, int length) {
163	#if USE_LS_SCRIPTVM
164	updateSyntaxHighlightingByVM();
165	#else
166	//printf("inserted %d\n", length);
167	Gtk::TextBuffer::iterator itStart = itEnd;
168	itStart.backward_chars(length);
169
170	Gtk::TextBuffer::iterator it = itStart;
171	it.backward_word_start();
172
173	bool eofReached = false;
174	while (it <= itEnd) {
175	Gtk::TextBuffer::iterator itWordStart = it;
176	if (!it.forward_word_end()) {
177	eofReached = true;
178	it = itEnd;
179	}
180
181	Glib::ustring s = m_textBuffer->get_text(itWordStart, it, false);
182	//printf("{%s}\n", s.c_str());
183	if (isKeyword(s))
184	m_textBuffer->apply_tag(m_keywordTag, itWordStart, it);
185	else if (isEvent(s)) {
186	// check if previous word is "on"
187	Gtk::TextBuffer::iterator itPreviousWordStart = itWordStart;
188	if (itPreviousWordStart.backward_word_start()) {
189	Gtk::TextBuffer::iterator itPreviousWordEnd = itPreviousWordStart;
190	itPreviousWordEnd.forward_word_end();
191	if (m_textBuffer->get_text(itPreviousWordStart, itPreviousWordEnd, false) == "on") {
192	m_textBuffer->apply_tag(m_eventTag, itWordStart, it);
193	}
194	}
195	}
196
197	if (eofReached) break;
198
199	while (!it.inside_word())
200	if (!it.forward_char())
201	goto EOF_REACHED;
202	}
203
204	EOF_REACHED:
205	;
206
207	#endif // USE_LS_SCRIPTVM
208	}
209
210	#if USE_LS_SCRIPTVM
211
212	static void applyCodeTag(Glib::RefPtr<Gtk::TextBuffer>& txtbuf, const LinuxSampler::VMSourceToken& token, Glib::RefPtr<Gtk::TextBuffer::Tag>& tag) {
213	Gtk::TextBuffer::iterator itStart =
214	txtbuf->get_iter_at_line_index(token.firstLine(), token.firstColumn());
215	Gtk::TextBuffer::iterator itEnd = itStart;
216	const int length = token.text().length();
217	itEnd.forward_chars(length);
218	txtbuf->apply_tag(tag, itStart, itEnd);
219	}
220
221	void ScriptEditor::updateSyntaxHighlightingByVM() {
222	if (!m_vm) m_vm = new LinuxSampler::ScriptVM();
223	const std::string s = m_textBuffer->get_text();
224	std::vector<LinuxSampler::VMSourceToken> tokens = m_vm->syntaxHighlighting(s);
225
226	m_textBuffer->remove_all_tags(m_textBuffer->begin(), m_textBuffer->end());
227
228	for (int i = 0; i < tokens.size(); ++i) {
229	const LinuxSampler::VMSourceToken& token = tokens[i];
230
231	if (token.isKeyword()) {
232	applyCodeTag(m_textBuffer, token, m_keywordTag);
233	} else if (token.isVariableName()) {
234	applyCodeTag(m_textBuffer, token, m_variableTag);
235	} else if (token.isIdentifier()) {
236	if (token.isEventHandlerName()) {
237	applyCodeTag(m_textBuffer, token, m_eventTag);
238	} else { // a function ...
239	applyCodeTag(m_textBuffer, token, m_functionTag);
240	}
241	} else if (token.isNumberLiteral()) {
242	applyCodeTag(m_textBuffer, token, m_numberTag);
243	} else if (token.isStringLiteral()) {
244	applyCodeTag(m_textBuffer, token, m_stringTag);
245	} else if (token.isComment()) {
246	applyCodeTag(m_textBuffer, token, m_commentTag);
247	} else if (token.isPreprocessor()) {
248	applyCodeTag(m_textBuffer, token, m_preprocTag);
249	} else if (token.isNewLine()) {
250	}
251	}
252	}
253
254	#endif // USE_LS_SCRIPTVM
255
256	void ScriptEditor::onTextErased(const Gtk::TextBuffer::iterator& itStart, const Gtk::TextBuffer::iterator& itEnd) {
257	//printf("erased\n");
258	#if USE_LS_SCRIPTVM
259	updateSyntaxHighlightingByVM();
260	#else
261	Gtk::TextBuffer::iterator itStart2 = itStart;
262	if (itStart2.inside_word() \|\| itStart2.ends_word())
263	itStart2.backward_word_start();
264
265	Gtk::TextBuffer::iterator itEnd2 = itEnd;
266	if (itEnd2.inside_word()) itEnd2.forward_word_end();
267
268	m_textBuffer->remove_all_tags(itStart2, itEnd2);
269	#endif // USE_LS_SCRIPTVM
270	}
271
272	void ScriptEditor::onModifiedChanged() {
273	m_applyButton.set_sensitive( m_textBuffer->get_modified() );
274	}
275
276	void ScriptEditor::onButtonCancel() {
277	hide();
278	}
279
280	void ScriptEditor::onButtonApply() {
281	m_script->SetScriptAsText(m_textBuffer->get_text());
282	m_textBuffer->set_modified(false);
283	}
284
285	void ScriptEditor::onWindowHide() {
286	delete this; // this is the end, my friend
287	}