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#include "strategyeditor.h"
StrategyEditor::StrategyEditor() {
_text.override_font(Pango::FontDescription("monospace"));
_text.set_wrap_mode(Gtk::WrapMode::WRAP_WORD);
add(_text);
_tagKeyword = _text.get_buffer()->create_tag();
_tagKeyword->property_weight().set_value(Pango::WEIGHT_BOLD);
_tagComment = _text.get_buffer()->create_tag();
_tagComment->property_style().set_value(Pango::STYLE_ITALIC);
Gdk::RGBA blue;
blue.set_rgba(0.13, 0.0, 0.53);
_tagComment->property_foreground_rgba().set_value(blue);
_tagString = _text.get_buffer()->create_tag();
Gdk::RGBA gold;
gold.set_rgba(0.68, 0.49, 0.0);
_tagString->property_foreground_rgba().set_value(gold);
_tagFunctionName = _text.get_buffer()->create_tag();
Gdk::RGBA red;
red.set_rgba(0.65, 0.1, 0.1);
_tagFunctionName->property_foreground_rgba().set_value(red);
_tagHighlight = _text.get_buffer()->create_tag();
Gdk::RGBA highlred;
highlred.set_rgba(1.0, 0.4, 0.4);
_tagHighlight->property_background_rgba().set_value(highlred);
_text.get_buffer()->signal_changed().connect([&]() { updateChanges(); });
}
bool isAlpha(int c) {
return (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || c == '_';
}
bool isAlphaNumeric(int c) {
return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') ||
(c >= 'a' && c <= 'z') || c == '_';
}
void StrategyEditor::parseWord(ParseInfo& p, Gtk::TextBuffer::iterator start,
Gtk::TextBuffer::iterator end) {
const std::string word(start, end);
const bool isKeyword =
word == "and" || word == "break" || word == "do" || word == "else" ||
word == "elseif" || word == "end" || word == "false" || word == "for" ||
word == "function" || word == "if" || word == "in" || word == "local" ||
word == "nil" || word == "not" || word == "or" || word == "repeat" ||
word == "return" || word == "then" || word == "true" || word == "until" ||
word == "while";
if (isKeyword) {
_text.get_buffer()->apply_tag(_tagKeyword, start, end);
if (word == "function") p.state = ParseInfo::FunctionStart;
} else {
if (p.state == ParseInfo::FunctionStart) {
_text.get_buffer()->apply_tag(_tagFunctionName, start, end);
p.state = ParseInfo::Clear;
}
}
}
void StrategyEditor::updateHighlighting() {
const Glib::RefPtr<Gtk::TextBuffer> buffer = _text.get_buffer();
auto iter = buffer->begin();
buffer->remove_all_tags(iter, buffer->end());
enum {
Clear,
InWord,
InComment,
AfterMinus,
LongCommentStart,
InLongComment,
LongCommentEnd,
InDQuote,
InQuote
} mode = Clear;
ParseInfo p{ParseInfo::Clear};
Gtk::TextBuffer::iterator wordStart;
size_t lineNr = 1;
Gtk::TextBuffer::iterator lineStart;
while (iter != buffer->end()) {
const int c = *iter;
if (c == '\n') {
if (lineNr == _highlightLine) {
_text.get_buffer()->apply_tag(_tagHighlight, lineStart, iter);
}
lineStart = iter;
++lineStart;
++lineNr;
}
switch (mode) {
case Clear:
case AfterMinus:
if (isAlpha(c)) {
mode = InWord;
wordStart = iter;
} else if (c == '-') {
if (mode == AfterMinus) {
mode = InComment;
} else {
mode = AfterMinus;
wordStart = iter;
}
} else if (c == '"') {
mode = InDQuote;
wordStart = iter;
} else if (c == '\'') {
mode = InQuote;
wordStart = iter;
}
break;
case InWord:
if (!isAlphaNumeric(c)) {
parseWord(p, wordStart, iter);
mode = Clear;
}
break;
case InComment:
if (c == '\n') {
_text.get_buffer()->apply_tag(_tagComment, wordStart, iter);
mode = Clear;
p.state = ParseInfo::Clear;
} else if (c == '[') {
mode = LongCommentStart;
}
break;
case LongCommentStart:
if (c == '[')
mode = InLongComment;
else
mode = InComment;
break;
case InLongComment:
if (c == ']') mode = LongCommentEnd;
break;
case LongCommentEnd:
if (c == ']') {
mode = Clear;
Gtk::TextBuffer::iterator next = iter;
++next;
_text.get_buffer()->apply_tag(_tagComment, wordStart, next);
}
break;
case InDQuote:
if (c == '"') {
Gtk::TextBuffer::iterator next = iter;
++next;
_text.get_buffer()->apply_tag(_tagString, wordStart, next);
mode = Clear;
p.state = ParseInfo::Clear;
}
break;
case InQuote:
if (c == '\'') {
Gtk::TextBuffer::iterator next = iter;
++next;
_text.get_buffer()->apply_tag(_tagString, wordStart, next);
mode = Clear;
p.state = ParseInfo::Clear;
}
break;
}
++iter;
}
}
void StrategyEditor::SetText(const std::string& text) {
const Glib::RefPtr<Gtk::TextBuffer> buffer = _text.get_buffer();
buffer->set_text(text);
}
std::string StrategyEditor::GetText() const {
return std::string(_text.get_buffer()->get_text());
}
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