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jucipp
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jucipp/src/source.cc

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#include "source.h"
#include "config.h"
#include "filesystem.h"
#include "terminal.h"
#include "info.h"
#include "directories.h"
#include <gtksourceview/gtksource.h>
#include <boost/property_tree/json_parser.hpp>
#include <boost/spirit/home/qi/char.hpp>
#include <boost/spirit/home/qi/operator.hpp>
#include <boost/spirit/home/qi/string.hpp>
#include <iostream>
#include <numeric>
#include <set>
namespace sigc {
#ifndef SIGC_FUNCTORS_DEDUCE_RESULT_TYPE_WITH_DECLTYPE
template <typename Functor>
struct functor_trait<Functor, false> {
typedef decltype (::sigc::mem_fun(std::declval<Functor&>(),
&Functor::operator())) _intermediate;
typedef typename _intermediate::result_type result_type;
typedef Functor functor_type;
};
#else
SIGC_FUNCTORS_DEDUCE_RESULT_TYPE_WITH_DECLTYPE
#endif
}
Glib::RefPtr<Gsv::Language> Source::guess_language(const boost::filesystem::path &file_path) {
auto language_manager=Gsv::LanguageManager::get_default();
bool result_uncertain = false;
auto content_type = Gio::content_type_guess(file_path.string(), nullptr, 0, result_uncertain);
if(result_uncertain) {
content_type.clear();
}
auto language=language_manager->guess_language(file_path.string(), content_type);
if(!language) {
auto filename=file_path.filename().string();
if(filename=="CMakeLists.txt")
language=language_manager->get_language("cmake");
else if(filename=="Makefile")
language=language_manager->get_language("makefile");
}
return language;
}
Source::FixIt::FixIt(const std::string &source, const std::pair<Offset, Offset> &offsets) : source(source), offsets(offsets) {
if(source.size()==0)
type=Type::ERASE;
else {
if(this->offsets.first==this->offsets.second)
type=Type::INSERT;
else
type=Type::REPLACE;
}
}
std::string Source::FixIt::string(Glib::RefPtr<Gtk::TextBuffer> buffer) {
auto iter=buffer->get_iter_at_line_index(offsets.first.line, offsets.first.index);
unsigned first_line_offset=iter.get_line_offset()+1;
iter=buffer->get_iter_at_line_index(offsets.second.line, offsets.second.index);
unsigned second_line_offset=iter.get_line_offset()+1;
std::string text;
if(type==Type::INSERT) {
text+="Insert "+source+" at ";
text+=std::to_string(offsets.first.line+1)+":"+std::to_string(first_line_offset);
}
else if(type==Type::REPLACE) {
text+="Replace ";
text+=std::to_string(offsets.first.line+1)+":"+std::to_string(first_line_offset)+" - ";
text+=std::to_string(offsets.second.line+1)+":"+std::to_string(second_line_offset);
text+=" with "+source;
}
else {
text+="Erase ";
text+=std::to_string(offsets.first.line+1)+":"+std::to_string(first_line_offset)+" - ";
text+=std::to_string(offsets.second.line+1)+":"+std::to_string(second_line_offset);
}
return text;
}
//////////////
//// View ////
//////////////
const std::regex Source::View::bracket_regex("^([ \\t]*).*\\{ *$");
const std::regex Source::View::no_bracket_statement_regex("^([ \\t]*)(if|for|else if|while) *\\(.*[^;}] *$");
const std::regex Source::View::no_bracket_no_para_statement_regex("^([ \\t]*)(else) *$");
Source::View::View(const boost::filesystem::path &file_path, Glib::RefPtr<Gsv::Language> language): Gsv::View(), SpellCheckView(), DiffView(file_path), language(language) {
get_source_buffer()->begin_not_undoable_action();
last_read_time=std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
if(language) {
if(filesystem::read_non_utf8(file_path, get_buffer())==-1)
Terminal::get().print("Warning: "+file_path.string()+" is not a valid UTF-8 file. Saving might corrupt the file.\n");
}
else {
if(filesystem::read(file_path, get_buffer())==-1)
Terminal::get().print("Error: "+file_path.string()+" is not a valid UTF-8 file.\n", true);
}
get_source_buffer()->end_not_undoable_action();
get_buffer()->place_cursor(get_buffer()->get_iter_at_offset(0));
search_settings = gtk_source_search_settings_new();
gtk_source_search_settings_set_wrap_around(search_settings, true);
search_context = gtk_source_search_context_new(get_source_buffer()->gobj(), search_settings);
gtk_source_search_context_set_highlight(search_context, true);
//TODO: why does this not work?: Might be best to use the styles from sourceview. These has to be read from file, search-matches got style "search-match"
//TODO: in header if trying again: GtkSourceStyle* search_match_style;
//TODO: We can drop this, only work on newer versions of gtksourceview.
//search_match_style=(GtkSourceStyle*)g_object_new(GTK_SOURCE_TYPE_STYLE, "background-set", 1, "background", "#00FF00", nullptr);
//gtk_source_search_context_set_match_style(search_context, search_match_style);
//TODO: either use lambda if possible or create a gtkmm wrapper around search_context (including search_settings):
//TODO: (gtkmm's Gtk::Object has connect_property_changed, so subclassing this might be an idea)
g_signal_connect(search_context, "notify::occurrences-count", G_CALLBACK(search_occurrences_updated), this);
get_buffer()->create_tag("def:warning");
get_buffer()->create_tag("def:warning_underline");
get_buffer()->create_tag("def:error");
get_buffer()->create_tag("def:error_underline");
get_buffer()->create_tag("def:note_background");
get_buffer()->create_tag("def:note");
auto mark_attr_debug_breakpoint=Gsv::MarkAttributes::create();
Gdk::RGBA rgba;
rgba.set_red(1.0);
rgba.set_green(0.5);
rgba.set_blue(0.5);
rgba.set_alpha(0.3);
mark_attr_debug_breakpoint->set_background(rgba);
set_mark_attributes("debug_breakpoint", mark_attr_debug_breakpoint, 100);
auto mark_attr_debug_stop=Gsv::MarkAttributes::create();
rgba.set_red(0.5);
rgba.set_green(0.5);
rgba.set_blue(1.0);
mark_attr_debug_stop->set_background(rgba);
set_mark_attributes("debug_stop", mark_attr_debug_stop, 101);
auto mark_attr_debug_breakpoint_and_stop=Gsv::MarkAttributes::create();
rgba.set_red(0.75);
rgba.set_green(0.5);
rgba.set_blue(0.75);
mark_attr_debug_breakpoint_and_stop->set_background(rgba);
set_mark_attributes("debug_breakpoint_and_stop", mark_attr_debug_breakpoint_and_stop, 102);
get_buffer()->signal_changed().connect([this](){
set_info(info);
});
signal_realize().connect([this] {
auto gutter=get_gutter(Gtk::TextWindowType::TEXT_WINDOW_LEFT);
auto renderer=gutter->get_renderer_at_pos(15, 0);
if(renderer) {
renderer_activate_connection.disconnect();
renderer_activate_connection=renderer->signal_activate().connect([this](const Gtk::TextIter& iter, const Gdk::Rectangle&, GdkEvent*) {
if(toggle_breakpoint)
toggle_breakpoint(iter.get_line());
});
}
});
set_tooltip_and_dialog_events();
if(language && (language->get_id()=="chdr" || language->get_id()=="cpphdr" || language->get_id()=="c" ||
language->get_id()=="cpp" || language->get_id()=="objc" || language->get_id()=="java" ||
language->get_id()=="js" || language->get_id()=="ts" || language->get_id()=="proto" ||
language->get_id()=="c-sharp" || language->get_id()=="html" || language->get_id()=="cuda" ||
language->get_id()=="php" || language->get_id()=="rust" || language->get_id()=="swift" ||
language->get_id()=="go" || language->get_id()=="scala" || language->get_id()=="opencl")) {
is_bracket_language=true;
auto_indent=[this]() {
auto command=Config::get().terminal.clang_format_command;
bool use_style_file=false;
auto style_file_search_path=this->file_path.parent_path();
while(true) {
if(boost::filesystem::exists(style_file_search_path/".clang-format") || boost::filesystem::exists(style_file_search_path/"_clang-format")) {
use_style_file=true;
break;
}
if(style_file_search_path==style_file_search_path.root_directory())
break;
style_file_search_path=style_file_search_path.parent_path();
}
if(use_style_file)
command+=" -style=file";
else {
unsigned indent_width;
std::string tab_style;
if(tab_char=='\t') {
indent_width=tab_size*8;
tab_style="UseTab: Always";
}
else {
indent_width=tab_size;
tab_style="UseTab: Never";
}
command+=" -style=\"{IndentWidth: "+std::to_string(indent_width);
command+=", "+tab_style;
command+=", "+std::string("AccessModifierOffset: -")+std::to_string(indent_width);
if(Config::get().source.clang_format_style!="")
command+=", "+Config::get().source.clang_format_style;
command+="}\"";
}
auto iter=get_buffer()->get_iter_at_line(get_buffer()->get_line_count()-1);
if(iter!=get_buffer()->end())
get_buffer()->insert(get_buffer()->end(), "\n");
std::stringstream stdin_stream(get_buffer()->get_text()), stdout_stream;
auto exit_status=Terminal::get().process(stdin_stream, stdout_stream, command, this->file_path.parent_path());
if(exit_status==0) {
get_buffer()->begin_user_action();
auto iter=get_buffer()->get_insert()->get_iter();
auto cursor_line_nr=iter.get_line();
auto cursor_line_offset=iter.get_line_offset();
//Insert new text without moving scrolled window
auto new_text=stdout_stream.str();
size_t start_line_index=0;
int line_nr=0;
for(size_t c=0;c<new_text.size();++c) {
if(new_text[c]=='\n') {
if(line_nr<get_buffer()->get_line_count()) {
auto start_iter=get_buffer()->get_iter_at_line(line_nr);
auto end_iter=get_iter_at_line_end(line_nr);
get_buffer()->erase(start_iter, end_iter);
}
else
get_buffer()->insert(get_buffer()->end(), "\n");
auto iter=get_buffer()->get_iter_at_line(line_nr);
get_buffer()->insert(iter, new_text.substr(start_line_index, c-start_line_index));
++line_nr;
start_line_index=c+1;
}
}
iter=get_buffer()->get_iter_at_line(get_buffer()->get_line_count()-1);
if(iter!=get_buffer()->end())
get_buffer()->insert(get_buffer()->end(), "\n");
if(line_nr<get_buffer()->get_line_count()-1) {
auto iter=get_buffer()->get_iter_at_line(line_nr);
get_buffer()->erase(iter, get_buffer()->end());
}
get_buffer()->end_user_action();
place_cursor_at_line_offset(cursor_line_nr, cursor_line_offset);
}
};
}
#ifndef __APPLE__
set_tab_width(4); //Visual size of a \t hardcoded to be equal to visual size of 4 spaces. Buggy on OS X
#endif
tab_char=Config::get().source.default_tab_char;
tab_size=Config::get().source.default_tab_size;
if(Config::get().source.auto_tab_char_and_size) {
auto tab_char_and_size=find_tab_char_and_size();
if(tab_char_and_size.second!=0) {
if(tab_char!=tab_char_and_size.first || tab_size!=tab_char_and_size.second) {
std::string tab_str;
if(tab_char_and_size.first==' ')
tab_str="<space>";
else
tab_str="<tab>";
}
tab_char=tab_char_and_size.first;
tab_size=tab_char_and_size.second;
}
}
set_tab_char_and_size(tab_char, tab_size);
std::shared_ptr<std::string> comment_characters;
if(is_bracket_language)
comment_characters=std::make_shared<std::string>("//");
else if(language) {
if(language->get_id()=="cmake" || language->get_id()=="makefile" || language->get_id()=="python" ||
language->get_id()=="python3" || language->get_id()=="sh" || language->get_id()=="perl" ||
language->get_id()=="ruby" || language->get_id()=="r" || language->get_id()=="asm" ||
language->get_id()=="automake")
comment_characters=std::make_shared<std::string>("#");
else if(language->get_id()=="latex" || language->get_id()=="matlab" || language->get_id()=="octave" ||
language->get_id()=="bibtex")
comment_characters=std::make_shared<std::string>("%");
else if(language->get_id()=="fortran")
comment_characters=std::make_shared<std::string>("!");
else if(language->get_id()=="pascal")
comment_characters=std::make_shared<std::string>("//");
else if(language->get_id()=="lua")
comment_characters=std::make_shared<std::string>("--");
}
if(comment_characters) {
toggle_comments=[this, comment_characters] {
std::vector<int> lines;
Gtk::TextIter selection_start, selection_end;
get_buffer()->get_selection_bounds(selection_start, selection_end);
auto line_start=selection_start.get_line();
auto line_end=selection_end.get_line();
if(line_start!=line_end && selection_end.starts_line())
--line_end;
bool lines_commented=true;
bool extra_spaces=true;
int min_indentation=-1;
for(auto line=line_start;line<=line_end;++line) {
auto iter=get_buffer()->get_iter_at_line(line);
bool line_added=false;
bool line_commented=false;
bool extra_space=false;
int indentation=0;
for(;;) {
if(iter.ends_line())
break;
else if(*iter==' ' || *iter=='\t') {
++indentation;
iter.forward_char();
continue;
}
else {
lines.emplace_back(line);
line_added=true;
for(size_t c=0;c<comment_characters->size();++c) {
if(iter.ends_line()) {
break;
}
else if(*iter==static_cast<unsigned int>((*comment_characters)[c])) {
if(c<comment_characters->size()-1) {
iter.forward_char();
continue;
}
else {
line_commented=true;
if(!iter.ends_line()) {
iter.forward_char();
if(*iter==' ')
extra_space=true;
}
break;
}
}
else
break;
}
break;
}
}
if(line_added) {
lines_commented&=line_commented;
extra_spaces&=extra_space;
if(min_indentation==-1 || indentation<min_indentation)
min_indentation=indentation;
}
}
if(lines.size()) {
auto comment_characters_and_space=*comment_characters+' ';
get_buffer()->begin_user_action();
for(auto &line: lines) {
auto iter=get_buffer()->get_iter_at_line(line);
iter.forward_chars(min_indentation);
if(lines_commented) {
auto end_iter=iter;
end_iter.forward_chars(comment_characters->size()+static_cast<int>(extra_spaces));
while(*iter==' ' || *iter=='\t') {
iter.forward_char();
end_iter.forward_char();
}
get_buffer()->erase(iter, end_iter);
}
else
get_buffer()->insert(iter, comment_characters_and_space);
}
get_buffer()->end_user_action();
}
};
}
}
void Source::View::set_tab_char_and_size(char tab_char, unsigned tab_size) {
this->tab_char=tab_char;
this->tab_size=tab_size;
tab.clear();
for(unsigned c=0;c<tab_size;c++)
tab+=tab_char;
}
void Source::View::cleanup_whitespace_characters() {
auto buffer=get_buffer();
buffer->begin_user_action();
for(int line=0;line<buffer->get_line_count();line++) {
auto iter=buffer->get_iter_at_line(line);
auto end_iter=get_iter_at_line_end(line);
if(iter==end_iter)
continue;
iter=end_iter;
while(!iter.starts_line() && (*iter==' ' || *iter=='\t' || iter.ends_line()))
iter.backward_char();
if(*iter!=' ' && *iter!='\t')
iter.forward_char();
if(iter==end_iter)
continue;
buffer->erase(iter, end_iter);
}
auto iter=buffer->end();
if(!iter.starts_line())
buffer->insert(buffer->end(), "\n");
buffer->end_user_action();
}
Gsv::DrawSpacesFlags Source::View::parse_show_whitespace_characters(const std::string &text) {
namespace qi = boost::spirit::qi;
qi::symbols<char, Gsv::DrawSpacesFlags> options;
options.add
("space", Gsv::DRAW_SPACES_SPACE)
("tab", Gsv::DRAW_SPACES_TAB)
("newline", Gsv::DRAW_SPACES_NEWLINE)
("nbsp", Gsv::DRAW_SPACES_NBSP)
("leading", Gsv::DRAW_SPACES_LEADING)
("text", Gsv::DRAW_SPACES_TEXT)
("trailing", Gsv::DRAW_SPACES_TRAILING)
("all", Gsv::DRAW_SPACES_ALL);
std::set<Gsv::DrawSpacesFlags> out;
// parse comma-separated list of options
qi::phrase_parse(text.begin(), text.end(), options % ',', qi::space, out);
return out.count(Gsv::DRAW_SPACES_ALL)>0 ?
Gsv::DRAW_SPACES_ALL :
static_cast<Gsv::DrawSpacesFlags>(std::accumulate(out.begin(), out.end(), 0));
}
bool Source::View::save(const std::vector<Source::View*> &views) {
if(file_path.empty() || !get_buffer()->get_modified())
return false;
if(Config::get().source.cleanup_whitespace_characters)
cleanup_whitespace_characters();
if(filesystem::write(file_path, get_buffer())) {
last_read_time=std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
get_buffer()->set_modified(false);
Directories::get().on_save_file(file_path);
return true;
}
else {
Terminal::get().print("Error: could not save file "+file_path.string()+"\n", true);
return false;
}
}
void Source::View::configure() {
SpellCheckView::configure();
DiffView::configure();
//TODO: Move this to notebook? Might take up too much memory doing this for every tab.
auto style_scheme_manager=Gsv::StyleSchemeManager::get_default();
style_scheme_manager->prepend_search_path((Config::get().juci_home_path()/"styles").string());
if(Config::get().source.style.size()>0) {
auto scheme = style_scheme_manager->get_scheme(Config::get().source.style);
if(scheme)
get_source_buffer()->set_style_scheme(scheme);
else
Terminal::get().print("Error: Could not find gtksourceview style: "+Config::get().source.style+'\n', true);
}
set_draw_spaces(parse_show_whitespace_characters(Config::get().source.show_whitespace_characters));
if(Config::get().source.wrap_lines)
set_wrap_mode(Gtk::WrapMode::WRAP_CHAR);
else
set_wrap_mode(Gtk::WrapMode::WRAP_NONE);
property_highlight_current_line() = Config::get().source.highlight_current_line;
property_show_line_numbers() = Config::get().source.show_line_numbers;
if(Config::get().source.font.size()>0)
override_font(Pango::FontDescription(Config::get().source.font));
#if GTKSOURCEVIEWMM_MAJOR_VERSION > 2 & GTKSOURCEVIEWMM_MINOR_VERSION > 15
if(Config::get().source.show_background_pattern)
gtk_source_view_set_background_pattern(this->gobj(), GTK_SOURCE_BACKGROUND_PATTERN_TYPE_GRID);
else
gtk_source_view_set_background_pattern(this->gobj(), GTK_SOURCE_BACKGROUND_PATTERN_TYPE_NONE);
#endif
//Create tags for diagnostic warnings and errors:
auto scheme = get_source_buffer()->get_style_scheme();
auto tag_table=get_buffer()->get_tag_table();
auto style=scheme->get_style("def:warning");
auto diagnostic_tag=get_buffer()->get_tag_table()->lookup("def:warning");
auto diagnostic_tag_underline=get_buffer()->get_tag_table()->lookup("def:warning_underline");
if(style && (style->property_foreground_set() || style->property_background_set())) {
Glib::ustring warning_property;
if(style->property_foreground_set()) {
warning_property=style->property_foreground().get_value();
diagnostic_tag->property_foreground() = warning_property;
}
else if(style->property_background_set())
warning_property=style->property_background().get_value();
diagnostic_tag_underline->property_underline()=Pango::Underline::UNDERLINE_ERROR;
auto tag_class=G_OBJECT_GET_CLASS(diagnostic_tag_underline->gobj()); //For older GTK+ 3 versions:
auto param_spec=g_object_class_find_property(tag_class, "underline-rgba");
if(param_spec!=nullptr) {
diagnostic_tag_underline->set_property("underline-rgba", Gdk::RGBA(warning_property));
}
}
style=scheme->get_style("def:error");
diagnostic_tag=get_buffer()->get_tag_table()->lookup("def:error");
diagnostic_tag_underline=get_buffer()->get_tag_table()->lookup("def:error_underline");
if(style && (style->property_foreground_set() || style->property_background_set())) {
Glib::ustring error_property;
if(style->property_foreground_set()) {
error_property=style->property_foreground().get_value();
diagnostic_tag->property_foreground() = error_property;
}
else if(style->property_background_set())
error_property=style->property_background().get_value();
diagnostic_tag_underline->property_underline()=Pango::Underline::UNDERLINE_ERROR;
#if GTK_VERSION_GE(3, 16)
diagnostic_tag_underline->set_property("underline-rgba", Gdk::RGBA(error_property));
#endif
}
//TODO: clear tag_class and param_spec?
//Add tooltip foreground and background
style = scheme->get_style("def:note");
auto note_tag=get_buffer()->get_tag_table()->lookup("def:note_background");
if(style->property_background_set()) {
note_tag->property_background()=style->property_background();
}
note_tag=get_buffer()->get_tag_table()->lookup("def:note");
if(style->property_foreground_set()) {
note_tag->property_foreground()=style->property_foreground();
}
}
void Source::View::set_tooltip_and_dialog_events() {
get_buffer()->signal_changed().connect([this] {
hide_tooltips();
});
signal_motion_notify_event().connect([this](GdkEventMotion* event) {
if(on_motion_last_x!=event->x || on_motion_last_y!=event->y) {
delayed_tooltips_connection.disconnect();
if((event->state&GDK_BUTTON1_MASK)==0) {
gdouble x=event->x;
gdouble y=event->y;
delayed_tooltips_connection=Glib::signal_timeout().connect([this, x, y]() {
Tooltips::init();
Gdk::Rectangle rectangle(x, y, 1, 1);
if(parsed) {
show_type_tooltips(rectangle);
show_diagnostic_tooltips(rectangle);
}
return false;
}, 100);
}
type_tooltips.hide();
diagnostic_tooltips.hide();
}
on_motion_last_x=event->x;
on_motion_last_y=event->y;
return false;
});
get_buffer()->signal_mark_set().connect([this](const Gtk::TextBuffer::iterator& iterator, const Glib::RefPtr<Gtk::TextBuffer::Mark>& mark) {
if(get_buffer()->get_has_selection() && mark->get_name()=="selection_bound")
delayed_tooltips_connection.disconnect();
if(mark->get_name()=="insert") {
hide_tooltips();
delayed_tooltips_connection=Glib::signal_timeout().connect([this]() {
Tooltips::init();
Gdk::Rectangle rectangle;
get_iter_location(get_buffer()->get_insert()->get_iter(), rectangle);
int location_window_x, location_window_y;
buffer_to_window_coords(Gtk::TextWindowType::TEXT_WINDOW_TEXT, rectangle.get_x(), rectangle.get_y(), location_window_x, location_window_y);
rectangle.set_x(location_window_x-2);
rectangle.set_y(location_window_y);
rectangle.set_width(5);
if(parsed) {
show_type_tooltips(rectangle);
show_diagnostic_tooltips(rectangle);
}
return false;
}, 500);
if(autocomplete_dialog)
autocomplete_dialog->hide();
if(selection_dialog)
selection_dialog->hide();
set_info(info);
}
});
signal_scroll_event().connect([this](GdkEventScroll* event) {
hide_tooltips();
hide_dialogs();
return false;
});
signal_focus_out_event().connect([this](GdkEventFocus* event) {
hide_tooltips();
return false;
});
signal_leave_notify_event().connect([this](GdkEventCrossing*) {
delayed_tooltips_connection.disconnect();
return false;
});
}
void Source::View::search_occurrences_updated(GtkWidget* widget, GParamSpec* property, gpointer data) {
auto view=static_cast<Source::View*>(data);
if(view->update_search_occurrences)
view->update_search_occurrences(gtk_source_search_context_get_occurrences_count(view->search_context));
}
Source::View::~View() {
g_clear_object(&search_context);
g_clear_object(&search_settings);
delayed_tooltips_connection.disconnect();
renderer_activate_connection.disconnect();
}
void Source::View::search_highlight(const std::string &text, bool case_sensitive, bool regex) {
gtk_source_search_settings_set_case_sensitive(search_settings, case_sensitive);
gtk_source_search_settings_set_regex_enabled(search_settings, regex);
gtk_source_search_settings_set_search_text(search_settings, text.c_str());
search_occurrences_updated(nullptr, nullptr, this);
}
void Source::View::search_forward() {
Gtk::TextIter insert, selection_bound;
get_buffer()->get_selection_bounds(insert, selection_bound);
auto& start=selection_bound;
Gtk::TextIter match_start, match_end;
if(gtk_source_search_context_forward(search_context, start.gobj(), match_start.gobj(), match_end.gobj())) {
get_buffer()->select_range(match_start, match_end);
scroll_to(get_buffer()->get_insert());
}
}
void Source::View::search_backward() {
Gtk::TextIter insert, selection_bound;
get_buffer()->get_selection_bounds(insert, selection_bound);
auto &start=insert;
Gtk::TextIter match_start, match_end;
if(gtk_source_search_context_backward(search_context, start.gobj(), match_start.gobj(), match_end.gobj())) {
get_buffer()->select_range(match_start, match_end);
scroll_to(get_buffer()->get_insert());
}
}
void Source::View::replace_forward(const std::string &replacement) {
Gtk::TextIter insert, selection_bound;
get_buffer()->get_selection_bounds(insert, selection_bound);
auto &start=insert;
Gtk::TextIter match_start, match_end;
if(gtk_source_search_context_forward(search_context, start.gobj(), match_start.gobj(), match_end.gobj())) {
auto offset=match_start.get_offset();
gtk_source_search_context_replace(search_context, match_start.gobj(), match_end.gobj(), replacement.c_str(), replacement.size(), nullptr);
Glib::ustring replacement_ustring=replacement;
get_buffer()->select_range(get_buffer()->get_iter_at_offset(offset), get_buffer()->get_iter_at_offset(offset+replacement_ustring.size()));
scroll_to(get_buffer()->get_insert());
}
}
void Source::View::replace_backward(const std::string &replacement) {
Gtk::TextIter insert, selection_bound;
get_buffer()->get_selection_bounds(insert, selection_bound);
auto &start=selection_bound;
Gtk::TextIter match_start, match_end;
if(gtk_source_search_context_backward(search_context, start.gobj(), match_start.gobj(), match_end.gobj())) {
auto offset=match_start.get_offset();
gtk_source_search_context_replace(search_context, match_start.gobj(), match_end.gobj(), replacement.c_str(), replacement.size(), nullptr);
get_buffer()->select_range(get_buffer()->get_iter_at_offset(offset), get_buffer()->get_iter_at_offset(offset+replacement.size()));
scroll_to(get_buffer()->get_insert());
}
}
void Source::View::replace_all(const std::string &replacement) {
gtk_source_search_context_replace_all(search_context, replacement.c_str(), replacement.size(), nullptr);
}
void Source::View::paste() {
std::string text=Gtk::Clipboard::get()->wait_for_text();
//Replace carriage returns (which leads to crash) with newlines
for(size_t c=0;c<text.size();c++) {
if(text[c]=='\r') {
if((c+1)<text.size() && text[c+1]=='\n')
text.replace(c, 2, "\n");
else
text.replace(c, 1, "\n");
}
}
get_buffer()->begin_user_action();
if(get_buffer()->get_has_selection()) {
Gtk::TextIter start, end;
get_buffer()->get_selection_bounds(start, end);
get_buffer()->erase(start, end);
}
auto line=get_line_before();
std::string prefix_tabs;
auto tabs_end_iter=get_tabs_end_iter();
prefix_tabs=get_line_before(tabs_end_iter);
size_t start_line=0;
size_t end_line=0;
bool paste_line=false;
bool first_paste_line=true;
size_t paste_line_tabs=-1;
bool first_paste_line_has_tabs=false;
for(size_t c=0;c<text.size();c++) {
if(text[c]=='\n') {
end_line=c;
paste_line=true;
}
else if(c==text.size()-1) {
end_line=c+1;
paste_line=true;
}
if(paste_line) {
bool empty_line=true;
std::string line=text.substr(start_line, end_line-start_line);
size_t tabs=0;
for(auto chr: line) {
if(chr==tab_char)
tabs++;
else {
empty_line=false;
break;
}
}
if(first_paste_line) {
if(tabs!=0) {
first_paste_line_has_tabs=true;
paste_line_tabs=tabs;
}
first_paste_line=false;
}
else if(!empty_line)
paste_line_tabs=std::min(paste_line_tabs, tabs);
start_line=end_line+1;
paste_line=false;
}
}
if(paste_line_tabs==static_cast<size_t>(-1))
paste_line_tabs=0;
start_line=0;
end_line=0;
paste_line=false;
first_paste_line=true;
for(size_t c=0;c<text.size();c++) {
if(text[c]=='\n') {
end_line=c;
paste_line=true;
}
else if(c==text.size()-1) {
end_line=c+1;
paste_line=true;
}
if(paste_line) {
std::string line=text.substr(start_line, end_line-start_line);
size_t line_tabs=0;
for(auto chr: line) {
if(chr==tab_char)
line_tabs++;
else
break;
}
auto tabs=paste_line_tabs;
if(!(first_paste_line && !first_paste_line_has_tabs) && line_tabs<paste_line_tabs) {
tabs=line_tabs;
}
if(first_paste_line) {
if(first_paste_line_has_tabs)
get_buffer()->insert_at_cursor(text.substr(start_line+tabs, end_line-start_line-tabs));
else
get_buffer()->insert_at_cursor(text.substr(start_line, end_line-start_line));
first_paste_line=false;
}
else
get_buffer()->insert_at_cursor('\n'+prefix_tabs+text.substr(start_line+tabs, end_line-start_line-tabs));
start_line=end_line+1;
paste_line=false;
}
}
get_buffer()->place_cursor(get_buffer()->get_insert()->get_iter());
get_buffer()->end_user_action();
scroll_to_cursor_delayed(this, false, false);
}
Gtk::TextIter Source::View::get_iter_for_dialog() {
auto iter=get_buffer()->get_insert()->get_iter();
Gdk::Rectangle visible_rect;
get_visible_rect(visible_rect);
Gdk::Rectangle iter_rect;
get_iter_location(iter, iter_rect);
iter_rect.set_width(1);
if(iter.get_line_offset()>=80) {
get_iter_at_location(iter, visible_rect.get_x(), iter_rect.get_y());
get_iter_location(iter, iter_rect);
}
if(!visible_rect.intersects(iter_rect))
get_iter_at_location(iter, visible_rect.get_x(), visible_rect.get_y()+visible_rect.get_height()/3);
return iter;
}
void Source::View::place_cursor_at_line_offset(int line, int offset) {
line=std::min(line, get_buffer()->get_line_count()-1);
if(line<0)
line=0;
auto iter=get_iter_at_line_end(line);
offset=std::min(offset, iter.get_line_offset());
get_buffer()->place_cursor(get_buffer()->get_iter_at_line_offset(line, offset));
}
void Source::View::place_cursor_at_line_index(int line, int index) {
line=std::min(line, get_buffer()->get_line_count()-1);
if(line<0)
line=0;
auto iter=get_iter_at_line_end(line);
index=std::min(index, iter.get_line_index());
get_buffer()->place_cursor(get_buffer()->get_iter_at_line_index(line, index));
}
void Source::View::hide_tooltips() {
delayed_tooltips_connection.disconnect();
type_tooltips.hide();
diagnostic_tooltips.hide();
}
void Source::View::hide_dialogs() {
SpellCheckView::hide_dialogs();
if(selection_dialog)
selection_dialog->hide();
if(autocomplete_dialog)
autocomplete_dialog->hide();
}
void Source::View::set_status(const std::string &status) {
this->status=status;
if(on_update_status)
on_update_status(this, status);
}
void Source::View::set_info(const std::string &info) {
this->info=info;
auto iter=get_buffer()->get_insert()->get_iter();
auto positions=std::to_string(iter.get_line()+1)+":"+std::to_string(iter.get_line_offset()+1);
if(on_update_info)
on_update_info(this, positions+" "+info);
}
std::string Source::View::get_line(const Gtk::TextIter &iter) {
auto line_start_it = get_buffer()->get_iter_at_line(iter.get_line());
auto line_end_it = get_iter_at_line_end(iter.get_line());
std::string line(get_buffer()->get_text(line_start_it, line_end_it));
return line;
}
std::string Source::View::get_line(Glib::RefPtr<Gtk::TextBuffer::Mark> mark) {
return get_line(mark->get_iter());
}
std::string Source::View::get_line(int line_nr) {
return get_line(get_buffer()->get_iter_at_line(line_nr));
}
std::string Source::View::get_line() {
return get_line(get_buffer()->get_insert());
}
std::string Source::View::get_line_before(const Gtk::TextIter &iter) {
auto line_it = get_buffer()->get_iter_at_line(iter.get_line());
std::string line(get_buffer()->get_text(line_it, iter));
return line;
}
std::string Source::View::get_line_before(Glib::RefPtr<Gtk::TextBuffer::Mark> mark) {
return get_line_before(mark->get_iter());
}
std::string Source::View::get_line_before() {
return get_line_before(get_buffer()->get_insert());
}
Gtk::TextIter Source::View::get_tabs_end_iter(const Gtk::TextIter &iter) {
return get_tabs_end_iter(iter.get_line());
}
Gtk::TextIter Source::View::get_tabs_end_iter(Glib::RefPtr<Gtk::TextBuffer::Mark> mark) {
return get_tabs_end_iter(mark->get_iter());
}
Gtk::TextIter Source::View::get_tabs_end_iter(int line_nr) {
auto sentence_iter = get_buffer()->get_iter_at_line(line_nr);
while((*sentence_iter==' ' || *sentence_iter=='\t') && !sentence_iter.ends_line() && sentence_iter.forward_char()) {}
return sentence_iter;
}
Gtk::TextIter Source::View::get_tabs_end_iter() {
return get_tabs_end_iter(get_buffer()->get_insert());
}
bool Source::View::find_open_non_curly_bracket_backward(Gtk::TextIter iter, Gtk::TextIter &found_iter) {
long para_count=0;
long square_count=0;
long curly_count=0;
do {
if(*iter=='(' && is_code_iter(iter))
para_count++;
else if(*iter==')' && is_code_iter(iter))
para_count--;
else if(*iter=='[' && is_code_iter(iter))
square_count++;
else if(*iter==']' && is_code_iter(iter))
square_count--;
else if(*iter=='{' && is_code_iter(iter))
curly_count++;
else if(*iter=='}' && is_code_iter(iter))
curly_count--;
if(curly_count>0)
break;
if(para_count>0 || square_count>0) {
found_iter=iter;
return true;
}
} while(iter.backward_char());
return false;
}
Gtk::TextIter Source::View::find_start_of_sentence(Gtk::TextIter iter) {
int para_count=0;
int square_count=0;
long curly_count=0;
do {
if(*iter=='(' && is_code_iter(iter))
para_count++;
else if(*iter==')' && is_code_iter(iter))
para_count--;
else if(*iter=='[' && is_code_iter(iter))
square_count++;
else if(*iter==']' && is_code_iter(iter))
square_count--;
else if(*iter=='{' && is_code_iter(iter))
curly_count++;
else if(*iter=='}' && is_code_iter(iter))
curly_count--;
if(curly_count>0)
break;
if(iter.starts_line() && para_count==0 && square_count==0) {
//Handle : and , on previous line
auto previous_iter=iter;
previous_iter.backward_char();
while(!previous_iter.starts_line() && (*previous_iter==' ' || previous_iter.ends_line()) && previous_iter.backward_char()) {}
if(*previous_iter!=',' && *previous_iter!=':')
return iter;
else if(*previous_iter==':') {
previous_iter.backward_char();
while(!previous_iter.starts_line() && *previous_iter==' ' && previous_iter.backward_char()) {}
if(*previous_iter==')') {
auto token=get_token(get_tabs_end_iter(get_buffer()->get_iter_at_line(previous_iter.get_line())));
if(token=="case")
return iter;
}
else
return iter;
}
}
} while(iter.backward_char());
return iter;
}
bool Source::View::find_open_curly_bracket_backward(Gtk::TextIter iter, Gtk::TextIter &found_iter) {
long count=0;
do {
if(*iter=='{') {
if(count==0 && is_code_iter(iter)) {
found_iter=iter;
return true;
}
count++;
}
else if(*iter=='}' && is_code_iter(iter))
count--;
} while(iter.backward_char());
return false;
}
bool Source::View::find_close_curly_bracket_forward(Gtk::TextIter iter, Gtk::TextIter &found_iter) {
long count=0;
do {
if(*iter=='}' && is_code_iter(iter)) {
if(count==0) {
found_iter=iter;
return true;
}
count--;
}
else if(*iter=='{' && is_code_iter(iter))
count++;
} while(iter.forward_char());
return false;
}
long Source::View::symbol_count(Gtk::TextIter iter, unsigned int positive_char, unsigned int negative_char) {
auto iter_stored=iter;
long symbol_count=0;
long curly_count=0;
bool break_on_curly=true;
if(positive_char=='{' || negative_char=='}')
break_on_curly=false;
bool check_if_next_iter_is_code_iter=false;
if(positive_char=='\'' || negative_char=='\'' || positive_char=='"' || negative_char=='"')
check_if_next_iter_is_code_iter=true;
Gtk::TextIter previous_iter;
do {
if(*iter==positive_char && is_code_iter(iter))
symbol_count++;
else if(*iter==negative_char && is_code_iter(iter))
symbol_count--;
else if(*iter=='{' && is_code_iter(iter))
curly_count++;
else if(*iter=='}' && is_code_iter(iter))
curly_count--;
else if(check_if_next_iter_is_code_iter) {
auto next_iter=iter;
if(next_iter.forward_char()) {
if(*iter==positive_char && is_code_iter(next_iter))
symbol_count++;
else if(*iter==negative_char && is_code_iter(next_iter))
symbol_count--;
}
}
if(break_on_curly && curly_count>0)
break;
} while(iter.backward_char());
iter=iter_stored;
if(!iter.forward_char()) {
return symbol_count;
}
curly_count=0;
do {
if(*iter==positive_char && is_code_iter(iter))
symbol_count++;
else if(*iter==negative_char && is_code_iter(iter))
symbol_count--;
else if(*iter=='{' && is_code_iter(iter))
curly_count++;
else if(*iter=='}' && is_code_iter(iter))
curly_count--;
else if(check_if_next_iter_is_code_iter) {
auto next_iter=iter;
if(next_iter.forward_char()) {
if(*iter==positive_char && is_code_iter(next_iter))
symbol_count++;
else if(*iter==negative_char && is_code_iter(next_iter))
symbol_count--;
}
}
if(break_on_curly && curly_count<0)
break;
} while(iter.forward_char());
return symbol_count;
}
bool Source::View::is_templated_function(Gtk::TextIter iter, Gtk::TextIter &parenthesis_end_iter) {
auto iter_stored=iter;
long bracket_count=0;
long curly_count=0;
if(!(iter.backward_char() && *iter=='>' && *iter_stored=='('))
return false;
do {
if(*iter=='<' && is_code_iter(iter))
bracket_count++;
else if(*iter=='>' && is_code_iter(iter))
bracket_count--;
else if(*iter=='{' && is_code_iter(iter))
curly_count++;
else if(*iter=='}' && is_code_iter(iter))
curly_count--;
if(bracket_count==0)
break;
if(curly_count>0)
break;
} while(iter.backward_char());
if(bracket_count!=0)
return false;
iter=iter_stored;
bracket_count=0;
curly_count=0;
do {
if(*iter=='(' && is_code_iter(iter))
bracket_count++;
else if(*iter==')' && is_code_iter(iter))
bracket_count--;
else if(*iter=='{' && is_code_iter(iter))
curly_count++;
else if(*iter=='}' && is_code_iter(iter))
curly_count--;
if(bracket_count==0) {
parenthesis_end_iter=iter;
return true;
}
if(curly_count<0)
return false;
} while(iter.forward_char());
return false;
}
std::string Source::View::get_token(Gtk::TextIter iter) {
auto start=iter;
auto end=iter;
while((*iter>='A' && *iter<='Z') || (*iter>='a' && *iter<='z') || (*iter>='0' && *iter<='9') || *iter=='_') {
start=iter;
if(!iter.backward_char())
break;
}
while((*end>='A' && *end<='Z') || (*end>='a' && *end<='z') || (*end>='0' && *end<='9') || *end=='_') {
if(!end.forward_char())
break;
}
return get_buffer()->get_text(start, end);
}
bool Source::View::on_key_press_event(GdkEventKey* key) {
if(selection_dialog && selection_dialog->shown) {
if(selection_dialog->on_key_press(key))
return true;
}
if(autocomplete_dialog && autocomplete_dialog->shown) {
if(autocomplete_dialog->on_key_press(key))
return true;
}
if(last_keyval<GDK_KEY_Shift_L || last_keyval>GDK_KEY_Hyper_R)
previous_non_modifier_keyval=last_keyval;
last_keyval=key->keyval;
//Move cursor one paragraph down
if((key->keyval==GDK_KEY_Down || key->keyval==GDK_KEY_KP_Down) && (key->state&GDK_CONTROL_MASK)>0) {
auto selection_start_iter=get_buffer()->get_selection_bound()->get_iter();
auto iter=get_buffer()->get_iter_at_line(get_buffer()->get_insert()->get_iter().get_line());
bool empty_line=false;
bool text_found=false;
for(;;) {
if(!iter)
break;
if(iter.starts_line())
empty_line=true;
if(empty_line && !iter.ends_line() && *iter!=' ' && *iter!='\t')
empty_line=false;
if(!text_found && !iter.ends_line() && *iter!=' ' && *iter!='\t')
text_found=true;
if(empty_line && text_found && iter.ends_line())
break;
iter.forward_char();
}
iter=get_buffer()->get_iter_at_line(iter.get_line());
if((key->state&GDK_SHIFT_MASK)>0)
get_buffer()->select_range(iter, selection_start_iter);
else
get_buffer()->place_cursor(iter);
scroll_to(get_buffer()->get_insert());
return true;
}
//Move cursor one paragraph up
else if((key->keyval==GDK_KEY_Up || key->keyval==GDK_KEY_KP_Up) && (key->state&GDK_CONTROL_MASK)>0) {
auto selection_start_iter=get_buffer()->get_selection_bound()->get_iter();
auto iter=get_buffer()->get_iter_at_line(get_buffer()->get_insert()->get_iter().get_line());
iter.backward_char();
bool empty_line=false;
bool text_found=false;
for(;;) {
if(!iter || iter.is_start())
break;
if(iter.ends_line())
empty_line=true;
if(empty_line && !iter.ends_line() && *iter!=' ' && *iter!='\t')
empty_line=false;
if(!text_found && !iter.ends_line() && *iter!=' ' && *iter!='\t')
text_found=true;
if(empty_line && text_found && iter.starts_line())
break;
iter.backward_char();
}
if(empty_line) {
iter=get_iter_at_line_end(iter.get_line());
iter.forward_char();
}
if((key->state&GDK_SHIFT_MASK)>0)
get_buffer()->select_range(iter, selection_start_iter);
else
get_buffer()->place_cursor(iter);
scroll_to(get_buffer()->get_insert());
return true;
}
get_buffer()->begin_user_action();
if(Config::get().source.smart_brackets && on_key_press_event_smart_brackets(key)) {
get_buffer()->end_user_action();
return true;
}
if(Config::get().source.smart_inserts && on_key_press_event_smart_inserts(key)) {
get_buffer()->end_user_action();
return true;
}
if(get_buffer()->get_has_selection()) {
auto return_value=on_key_press_event_basic(key);
get_buffer()->end_user_action();
if(return_value)
return true;
else
return Gsv::View::on_key_press_event(key);
}
if(!is_code_iter(get_buffer()->get_insert()->get_iter())) {
auto return_value=on_key_press_event_basic(key);
get_buffer()->end_user_action();
if(return_value)
return true;
else
return Gsv::View::on_key_press_event(key);
}
if(is_bracket_language && on_key_press_event_bracket_language(key)) {
get_buffer()->end_user_action();
return true;
}
else if(on_key_press_event_basic(key)) {
get_buffer()->end_user_action();
return true;
}
else {
get_buffer()->end_user_action();
return Gsv::View::on_key_press_event(key);
}
}
//Basic indentation
bool Source::View::on_key_press_event_basic(GdkEventKey* key) {
auto iter=get_buffer()->get_insert()->get_iter();
//Indent as in next or previous line
if((key->keyval==GDK_KEY_Return || key->keyval==GDK_KEY_KP_Enter) && !get_buffer()->get_has_selection() && !iter.starts_line()) {
//First remove spaces or tabs around cursor
auto start_blank_iter=iter;
auto end_blank_iter=iter;
while((*end_blank_iter==' ' || *end_blank_iter=='\t') &&
!end_blank_iter.ends_line() && end_blank_iter.forward_char()) {}
start_blank_iter.backward_char();
while((*start_blank_iter==' ' || *start_blank_iter=='\t') &&
!start_blank_iter.starts_line() && start_blank_iter.backward_char()) {}
if(start_blank_iter.starts_line() && (*start_blank_iter==' ' || *start_blank_iter=='\t'))
get_buffer()->erase(iter, end_blank_iter);
else {
start_blank_iter.forward_char();
get_buffer()->erase(start_blank_iter, end_blank_iter);
}
iter=get_buffer()->get_insert()->get_iter();
auto previous_iter=iter;
previous_iter.backward_char();
auto start_iter=previous_iter;
Gtk::TextIter open_non_curly_bracket_iter;
bool open_non_curly_bracket_iter_found=false;
if(find_open_non_curly_bracket_backward(start_iter, open_non_curly_bracket_iter)) {
open_non_curly_bracket_iter_found=true;
start_iter=get_tabs_end_iter(get_buffer()->get_iter_at_line(open_non_curly_bracket_iter.get_line()));
}
else
start_iter=get_tabs_end_iter(get_buffer()->get_iter_at_line(find_start_of_sentence(start_iter).get_line()));
auto tabs=get_line_before(start_iter);
//Indent multiline expressions
if(open_non_curly_bracket_iter_found) {
auto tabs_end_iter=get_tabs_end_iter(open_non_curly_bracket_iter);
auto tabs=get_line_before(get_tabs_end_iter(open_non_curly_bracket_iter));
auto iter=tabs_end_iter;
while(iter<=open_non_curly_bracket_iter) {
tabs+=' ';
iter.forward_char();
}
get_buffer()->insert_at_cursor("\n"+tabs);
scroll_to(get_buffer()->get_insert());
return true;
}
int line_nr=iter.get_line();
if((line_nr+1)<get_buffer()->get_line_count()) {
auto next_line_tabs_end_iter=get_tabs_end_iter(line_nr+1);
auto next_line_tabs=get_line_before(next_line_tabs_end_iter);
if(iter.ends_line() && next_line_tabs.size()>tabs.size()) {
get_buffer()->insert_at_cursor("\n"+next_line_tabs);
scroll_to(get_buffer()->get_insert());
return true;
}
}
get_buffer()->insert_at_cursor("\n"+tabs);
scroll_to(get_buffer()->get_insert());
return true;
}
else if(key->keyval==GDK_KEY_Tab && (key->state&GDK_SHIFT_MASK)==0) {
if(!Config::get().source.tab_indents_line && !get_buffer()->get_has_selection()) {
get_buffer()->insert_at_cursor(tab);
return true;
}
//Indent right when clicking tab, no matter where in the line the cursor is. Also works on selected text.
//Special case if insert is at beginning of empty line:
if(iter.starts_line() && iter.ends_line() && !get_buffer()->get_has_selection()) {
auto prev_line_iter=iter;
while(prev_line_iter.starts_line() && prev_line_iter.backward_char()) {}
auto prev_line_tabs_end_iter=get_tabs_end_iter(prev_line_iter);
auto previous_line_tabs=get_line_before(prev_line_tabs_end_iter);
auto next_line_iter=iter;
while(next_line_iter.starts_line() && next_line_iter.forward_char()) {}
auto next_line_tabs_end_iter=get_tabs_end_iter(next_line_iter);
auto next_line_tabs=get_line_before(next_line_tabs_end_iter);
std::string tabs;
if(previous_line_tabs.size()<next_line_tabs.size())
tabs=previous_line_tabs;
else
tabs=next_line_tabs;
if(tabs.size()>=tab_size) {
get_buffer()->insert_at_cursor(tabs);
return true;
}
}
Gtk::TextIter selection_start, selection_end;
get_buffer()->get_selection_bounds(selection_start, selection_end);
auto selection_end_mark=get_buffer()->create_mark(selection_end);
int line_start=selection_start.get_line();
int line_end=selection_end.get_line();
for(int line=line_start;line<=line_end;line++) {
Gtk::TextIter line_it = get_buffer()->get_iter_at_line(line);
if(!get_buffer()->get_has_selection() || line_it!=selection_end_mark->get_iter())
get_buffer()->insert(line_it, tab);
}
get_buffer()->delete_mark(selection_end_mark);
return true;
}
//Indent left when clicking shift-tab, no matter where in the line the cursor is. Also works on selected text.
else if((key->keyval==GDK_KEY_ISO_Left_Tab || key->keyval==GDK_KEY_Tab) && (key->state&GDK_SHIFT_MASK)>0) {
Gtk::TextIter selection_start, selection_end;
get_buffer()->get_selection_bounds(selection_start, selection_end);
int line_start=selection_start.get_line();
int line_end=selection_end.get_line();
unsigned indent_left_steps=tab_size;
std::vector<bool> ignore_line;
for(int line_nr=line_start;line_nr<=line_end;line_nr++) {
auto line_it = get_buffer()->get_iter_at_line(line_nr);
if(!get_buffer()->get_has_selection() || line_it!=selection_end) {
auto tabs_end_iter=get_tabs_end_iter(line_nr);
if(tabs_end_iter.starts_line() && tabs_end_iter.ends_line())
ignore_line.push_back(true);
else {
auto line_tabs=get_line_before(tabs_end_iter);
if(line_tabs.size()>0) {
indent_left_steps=std::min(indent_left_steps, static_cast<unsigned>(line_tabs.size()));
ignore_line.push_back(false);
}
else
return true;
}
}
}
for(int line_nr=line_start;line_nr<=line_end;line_nr++) {
Gtk::TextIter line_it = get_buffer()->get_iter_at_line(line_nr);
Gtk::TextIter line_plus_it=line_it;
if(!get_buffer()->get_has_selection() || line_it!=selection_end) {
line_plus_it.forward_chars(indent_left_steps);
if(!ignore_line.at(line_nr-line_start))
get_buffer()->erase(line_it, line_plus_it);
}
}
return true;
}
//"Smart" backspace key
else if(key->keyval==GDK_KEY_BackSpace && !get_buffer()->get_has_selection()) {
auto line=get_line_before();
bool do_smart_backspace=true;
for(auto &chr: line) {
if(chr!=' ' && chr!='\t') {
do_smart_backspace=false;
break;
}
}
if(do_smart_backspace) {
auto line_start_iter=iter;
if(line_start_iter.backward_chars(line.size())) {
line_start_iter.backward_char();
get_buffer()->erase(iter, line_start_iter);
return true;
}
}
}
//"Smart" delete key
else if(key->keyval==GDK_KEY_Delete && !get_buffer()->get_has_selection()) {
auto insert_iter=iter;
bool do_smart_delete=true;
do {
if(*iter!=' ' && *iter!='\t' && !iter.ends_line()) {
do_smart_delete=false;
break;
}
if(iter.ends_line()) {
if(!iter.forward_char())
do_smart_delete=false;
break;
}
} while(iter.forward_char());
if(do_smart_delete) {
if(!insert_iter.starts_line())
while((*iter==' ' || *iter=='\t') && iter.forward_char()) {}
get_buffer()->erase(insert_iter, iter);
return true;
}
}
//Next two are smart home/end keys that works with wrapped lines
//Note that smart end goes FIRST to end of line to avoid hiding empty chars after expressions
else if((key->keyval==GDK_KEY_End || key->keyval==GDK_KEY_KP_End) && (key->state&GDK_CONTROL_MASK)==0) {
auto end_line_iter=get_iter_at_line_end(iter.get_line());
auto end_sentence_iter=end_line_iter;
while(!end_sentence_iter.starts_line() &&
(*end_sentence_iter==' ' || *end_sentence_iter=='\t' || end_sentence_iter.ends_line()) &&
end_sentence_iter.backward_char()) {}
if(!end_sentence_iter.ends_line() && !end_sentence_iter.starts_line())
end_sentence_iter.forward_char();
if(iter==end_line_iter) {
if((key->state&GDK_SHIFT_MASK)>0)
get_buffer()->move_mark_by_name("insert", end_sentence_iter);
else
get_buffer()->place_cursor(end_sentence_iter);
}
else {
if((key->state&GDK_SHIFT_MASK)>0)
get_buffer()->move_mark_by_name("insert", end_line_iter);
else
get_buffer()->place_cursor(end_line_iter);
}
scroll_to(get_buffer()->get_insert());
return true;
}
else if((key->keyval==GDK_KEY_Home || key->keyval==GDK_KEY_KP_Home) && (key->state&GDK_CONTROL_MASK)==0) {
auto start_line_iter=get_buffer()->get_iter_at_line(iter.get_line());
auto start_sentence_iter=start_line_iter;
while(!start_sentence_iter.ends_line() &&
(*start_sentence_iter==' ' || *start_sentence_iter=='\t') &&
start_sentence_iter.forward_char()) {}
if(iter>start_sentence_iter || iter==start_line_iter) {
if((key->state&GDK_SHIFT_MASK)>0)
get_buffer()->move_mark_by_name("insert", start_sentence_iter);
else
get_buffer()->place_cursor(start_sentence_iter);
}
else {
if((key->state&GDK_SHIFT_MASK)>0)
get_buffer()->move_mark_by_name("insert", start_line_iter);
else
get_buffer()->place_cursor(start_line_iter);
}
scroll_to(get_buffer()->get_insert());
return true;
}
//Workaround for TextView::on_key_press_event bug sometimes causing segmentation faults
//TODO: figure out the bug and create pull request to gtk
//Have only experienced this on OS X
//Note: valgrind reports issues on TextView::on_key_press_event as well
auto unicode=gdk_keyval_to_unicode(key->keyval);
if((key->state&(GDK_CONTROL_MASK|GDK_META_MASK))==0 && unicode>=32 && unicode!=127 &&
(previous_non_modifier_keyval<GDK_KEY_dead_grave || previous_non_modifier_keyval>GDK_KEY_dead_greek)) {
if(get_buffer()->get_has_selection()) {
Gtk::TextIter selection_start, selection_end;
get_buffer()->get_selection_bounds(selection_start, selection_end);
get_buffer()->erase(selection_start, selection_end);
}
get_buffer()->insert_at_cursor(Glib::ustring(1, unicode));
scroll_to(get_buffer()->get_insert());
//Trick to make the cursor visible right after insertion:
set_cursor_visible(false);
set_cursor_visible();
return true;
}
return false;
}
//Bracket language indentation
bool Source::View::on_key_press_event_bracket_language(GdkEventKey* key) {
auto iter=get_buffer()->get_insert()->get_iter();
//Indent depending on if/else/etc and brackets
if((key->keyval==GDK_KEY_Return || key->keyval==GDK_KEY_KP_Enter) && !iter.starts_line()) {
//First remove spaces or tabs around cursor
auto start_blank_iter=iter;
auto end_blank_iter=iter;
while((*end_blank_iter==' ' || *end_blank_iter=='\t') &&
!end_blank_iter.ends_line() && end_blank_iter.forward_char()) {}
start_blank_iter.backward_char();
while((*start_blank_iter==' ' || *start_blank_iter=='\t' || start_blank_iter.ends_line()) &&
!start_blank_iter.starts_line() && start_blank_iter.backward_char()) {}
if(!start_blank_iter.starts_line()) {
start_blank_iter.forward_char();
get_buffer()->erase(start_blank_iter, end_blank_iter);
}
else
get_buffer()->erase(iter, end_blank_iter);
iter=get_buffer()->get_insert()->get_iter();
auto previous_iter=iter;
previous_iter.backward_char();
auto start_iter=previous_iter;
if(*start_iter=='{')
start_iter.backward_char();
Gtk::TextIter open_non_curly_bracket_iter;
bool open_non_curly_bracket_iter_found=false;
if(find_open_non_curly_bracket_backward(start_iter, open_non_curly_bracket_iter)) {
open_non_curly_bracket_iter_found=true;
start_iter=get_tabs_end_iter(get_buffer()->get_iter_at_line(open_non_curly_bracket_iter.get_line()));
}
else
start_iter=get_tabs_end_iter(get_buffer()->get_iter_at_line(find_start_of_sentence(start_iter).get_line()));
auto tabs=get_line_before(start_iter);
if(*previous_iter=='{') {
Gtk::TextIter found_iter;
bool found_right_bracket=find_close_curly_bracket_forward(iter, found_iter);
bool has_right_curly_bracket=false;
if(found_right_bracket) {
auto tabs_end_iter=get_tabs_end_iter(found_iter);
auto line_tabs=get_line_before(tabs_end_iter);
if(tabs.size()==line_tabs.size())
has_right_curly_bracket=true;
}
if(*get_buffer()->get_insert()->get_iter()=='}') {
get_buffer()->insert_at_cursor("\n"+tabs+tab+"\n"+tabs);
auto insert_it = get_buffer()->get_insert()->get_iter();
if(insert_it.backward_chars(tabs.size()+1)) {
scroll_to(get_buffer()->get_insert());
get_buffer()->place_cursor(insert_it);
}
return true;
}
else if(!has_right_curly_bracket) {
//Insert new lines with bracket end
bool add_semicolon=false;
if(language && (language->get_id()=="chdr" || language->get_id()=="cpphdr" ||
language->get_id()=="c" || language->get_id()=="cpp")) {
auto token=get_token(start_iter);
if(token.empty()) {
auto iter=start_iter;
while(!iter.starts_line() && iter.backward_char()) {}
if(iter.backward_char())
token=get_token(get_tabs_end_iter(get_buffer()->get_iter_at_line(iter.get_line())));
}
//Add semicolon after class or struct
if(token=="class" || token=="struct")
add_semicolon=true;
//Add semicolon after lambda unless it's a parameter
else if(!open_non_curly_bracket_iter_found) {
auto it=previous_iter;
long para_count=0;
long square_count=0;
bool square_found=false;
while(it.backward_char()) {
if(*it==']' && is_code_iter(it)) {
--square_count;
square_found=true;
}
else if(*it=='[' && is_code_iter(it))
++square_count;
else if(*it==')' && is_code_iter(it))
--para_count;
else if(*it=='(' && is_code_iter(it))
++para_count;
if(square_found && square_count==0 && para_count==0) {
add_semicolon=true;
break;
}
if(it==start_iter)
break;
if(!square_found && square_count==0 && para_count==0) {
if((*it>='A' && *it<='Z') || (*it>='a' && *it<='z') || (*it>='0' && *it<='9') || *it=='_' ||
*it=='-' || *it==' ' || *it=='\t' || *it=='<' || *it=='>' || *it=='(' || *it==':' ||
*it=='*' || *it=='&' || *it=='/' || it.ends_line() || !is_code_iter(it)) {
continue;
}
else
break;
}
}
}
}
get_buffer()->insert_at_cursor("\n"+tabs+tab+"\n"+tabs+(add_semicolon?"};":"}"));
auto insert_it = get_buffer()->get_insert()->get_iter();
if(insert_it.backward_chars(tabs.size()+(add_semicolon?3:2))) {
scroll_to(get_buffer()->get_insert());
get_buffer()->place_cursor(insert_it);
}
return true;
}
else {
get_buffer()->insert_at_cursor("\n"+tabs+tab);
scroll_to(get_buffer()->get_insert());
return true;
}
}
//Indent multiline expressions
if(open_non_curly_bracket_iter_found) {
auto tabs_end_iter=get_tabs_end_iter(open_non_curly_bracket_iter);
auto tabs=get_line_before(get_tabs_end_iter(open_non_curly_bracket_iter));
auto iter=tabs_end_iter;
while(iter<=open_non_curly_bracket_iter) {
tabs+=' ';
iter.forward_char();
}
get_buffer()->insert_at_cursor("\n"+tabs);
scroll_to(get_buffer()->get_insert());
return true;
}
auto line=get_line_before();
std::smatch sm;
if(std::regex_match(line, sm, no_bracket_statement_regex)) {
get_buffer()->insert_at_cursor("\n"+tabs+tab);
scroll_to(get_buffer()->get_insert());
return true;
}
else if(std::regex_match(line, sm, no_bracket_no_para_statement_regex)) {
get_buffer()->insert_at_cursor("\n"+tabs+tab);
scroll_to(get_buffer()->get_insert());
return true;
}
//Indenting after for instance if(...)\n...;\n
else if(iter.backward_char() && *iter==';') {
std::smatch sm2;
size_t line_nr=get_buffer()->get_insert()->get_iter().get_line();
if(line_nr>0 && tabs.size()>=tab_size) {
std::string previous_line=get_line(line_nr-1);
if(!std::regex_match(previous_line, sm2, bracket_regex)) {
if(std::regex_match(previous_line, sm2, no_bracket_statement_regex)) {
get_buffer()->insert_at_cursor("\n"+sm2[1].str());
scroll_to(get_buffer()->get_insert());
return true;
}
else if(std::regex_match(previous_line, sm2, no_bracket_no_para_statement_regex)) {
get_buffer()->insert_at_cursor("\n"+sm2[1].str());
scroll_to(get_buffer()->get_insert());
return true;
}
}
}
}
//Indenting after ':'
else if(*iter==':') {
bool perform_indent=true;
auto previous_iter=iter;
previous_iter.backward_char();
while(!previous_iter.starts_line() && *previous_iter==' ' && previous_iter.backward_char()) {}
if(*previous_iter==')') {
auto token=get_token(get_tabs_end_iter(get_buffer()->get_iter_at_line(previous_iter.get_line())));
if(token!="case")
perform_indent=false;
}
if(perform_indent) {
Gtk::TextIter found_curly_iter;
if(find_open_curly_bracket_backward(iter, found_curly_iter)) {
auto tabs_end_iter=get_tabs_end_iter(get_buffer()->get_iter_at_line(found_curly_iter.get_line()));
auto tabs_start_of_sentence=get_line_before(tabs_end_iter);
if(tabs.size()==(tabs_start_of_sentence.size()+tab_size)) {
auto start_line_iter=get_buffer()->get_iter_at_line(iter.get_line());
auto start_line_plus_tab_size=start_line_iter;
for(size_t c=0;c<tab_size;c++)
start_line_plus_tab_size.forward_char();
get_buffer()->erase(start_line_iter, start_line_plus_tab_size);
}
else {
get_buffer()->insert_at_cursor("\n"+tabs+tab);
scroll_to(get_buffer()->get_insert());
return true;
}
}
}
}
get_buffer()->insert_at_cursor("\n"+tabs);
scroll_to(get_buffer()->get_insert());
return true;
}
//Indent left when writing } on a new line
else if(key->keyval==GDK_KEY_braceright) {
std::string line=get_line_before();
if(line.size()>=tab_size && iter.ends_line()) {
bool indent_left=true;
for(auto c: line) {
if(c!=tab_char) {
indent_left=false;
break;
}
}
if(indent_left) {
Gtk::TextIter insert_it = get_buffer()->get_insert()->get_iter();
Gtk::TextIter line_it = get_buffer()->get_iter_at_line(insert_it.get_line());
Gtk::TextIter line_plus_it=line_it;
line_plus_it.forward_chars(tab_size);
get_buffer()->erase(line_it, line_plus_it);
get_buffer()->insert_at_cursor("}");
return true;
}
}
}
//Indent left when writing { on a new line after for instance if(...)\n...
else if(key->keyval==GDK_KEY_braceleft) {
auto iter=get_buffer()->get_insert()->get_iter();
auto tabs_end_iter=get_tabs_end_iter();
auto tabs=get_line_before(tabs_end_iter);
size_t line_nr=iter.get_line();
if(line_nr>0 && tabs.size()>=tab_size && iter==tabs_end_iter) {
std::string previous_line=get_line(line_nr-1);
std::smatch sm;
if(!std::regex_match(previous_line, sm, bracket_regex)) {
auto start_iter=iter;
start_iter.backward_chars(tab_size);
if(std::regex_match(previous_line, sm, no_bracket_statement_regex) ||
std::regex_match(previous_line, sm, no_bracket_no_para_statement_regex)) {
if((tabs.size()-tab_size)==sm[1].str().size()) {
get_buffer()->erase(start_iter, iter);
get_buffer()->insert_at_cursor("{");
scroll_to(get_buffer()->get_insert());
return true;
}
}
}
}
}
return false;
}
bool Source::View::on_key_press_event_smart_brackets(GdkEventKey *key) {
if(get_buffer()->get_has_selection())
return false;
auto iter=get_buffer()->get_insert()->get_iter();
auto previous_iter=iter;
previous_iter.backward_char();
if(is_code_iter(iter)) {
//Move after ')' if closed expression
if(key->keyval==GDK_KEY_parenright) {
if(*iter==')' && symbol_count(iter, '(', ')')==0) {
iter.forward_char();
get_buffer()->place_cursor(iter);
scroll_to(get_buffer()->get_insert());
return true;
}
}
//Move after '>' if >( and closed expression
else if(key->keyval==GDK_KEY_greater) {
if(*iter=='>') {
iter.forward_char();
Gtk::TextIter parenthesis_end_iter;
if(*iter=='(' && is_templated_function(iter, parenthesis_end_iter)) {
get_buffer()->place_cursor(iter);
scroll_to(get_buffer()->get_insert());
return true;
}
}
}
//Move after '(' if >( and select text inside parentheses
else if(key->keyval==GDK_KEY_parenleft) {
auto previous_iter=iter;
previous_iter.backward_char();
if(*previous_iter=='>') {
Gtk::TextIter parenthesis_end_iter;
if(*iter=='(' && is_templated_function(iter, parenthesis_end_iter)) {
iter.forward_char();
get_buffer()->select_range(iter, parenthesis_end_iter);
scroll_to(iter);
return true;
}
}
}
}
return false;
}
bool Source::View::on_key_press_event_smart_inserts(GdkEventKey *key) {
if(get_buffer()->get_has_selection()) {
bool perform_insertion=false;
char left_char, right_char;
// Insert () around selection
if(key->keyval==GDK_KEY_parenleft) {
perform_insertion=true;
left_char='(';
right_char=')';
}
// Insert [] around selection
else if(key->keyval==GDK_KEY_bracketleft) {
perform_insertion=true;
left_char='[';
right_char=']';
}
// Insert {} around selection
else if(key->keyval==GDK_KEY_braceleft) {
perform_insertion=true;
left_char='{';
right_char='}';
}
// Insert <> around selection
else if(key->keyval==GDK_KEY_less) {
perform_insertion=true;
left_char='<';
right_char='>';
}
// Insert '' around selection
else if(key->keyval==GDK_KEY_apostrophe) {
perform_insertion=true;
left_char='\'';
right_char='\'';
}
// Insert "" around selection
else if(key->keyval==GDK_KEY_quotedbl) {
perform_insertion=true;
left_char='"';
right_char='"';
}
// Insert `` around selection
else if(key->keyval==GDK_KEY_dead_grave) {
perform_insertion=true;
left_char='`';
right_char='`';
}
if(perform_insertion) {
Gtk::TextIter start, end;
get_buffer()->get_selection_bounds(start, end);
auto start_mark=get_buffer()->create_mark(start);
auto end_mark=get_buffer()->create_mark(end);
get_buffer()->insert(start, Glib::ustring()+left_char);
get_buffer()->insert(end_mark->get_iter(), Glib::ustring()+right_char);
auto start_mark_next_iter=start_mark->get_iter();
start_mark_next_iter.forward_char();
get_buffer()->select_range(start_mark_next_iter, end_mark->get_iter());
get_buffer()->delete_mark(start_mark);
get_buffer()->delete_mark(end_mark);
return true;
}
return false;
}
auto iter=get_buffer()->get_insert()->get_iter();
auto previous_iter=iter;
previous_iter.backward_char();
auto next_iter=iter;
next_iter.forward_char();
auto allow_insertion=[](const Gtk::TextIter &iter) {
if(iter.ends_line() || *iter==' ' || *iter=='\t' || *iter==';' || *iter==')' || *iter==']' || *iter=='[' || *iter=='{' || *iter=='}')
return true;
return false;
};
// Move right when clicking ' before a ' or when clicking " before a "
if(((key->keyval==GDK_KEY_apostrophe && *iter=='\'') ||
(key->keyval==GDK_KEY_quotedbl && *iter=='\"')) && is_code_iter(next_iter)) {
bool perform_move=false;
if(*previous_iter!='\\')
perform_move=true;
else {
auto it=previous_iter;
long backslash_count=1;
while(it.backward_char() && *it=='\\') {
++backslash_count;
}
if(backslash_count%2==0)
perform_move=true;
}
if(perform_move) {
get_buffer()->place_cursor(next_iter);
scroll_to(get_buffer()->get_insert());
return true;
}
}
// When to delete '' or ""
else if(key->keyval==GDK_KEY_BackSpace) {
if(((*previous_iter=='\'' && *iter=='\'') ||
(*previous_iter=='"' && *iter=='"')) && is_code_iter(previous_iter)) {
get_buffer()->erase(previous_iter, next_iter);
scroll_to(get_buffer()->get_insert());
return true;
}
}
if(is_code_iter(iter)) {
// Insert ()
if(key->keyval==GDK_KEY_parenleft && allow_insertion(iter)) {
if(symbol_count(iter, '(', ')')==0) {
get_buffer()->insert_at_cursor("()");
auto iter=get_buffer()->get_insert()->get_iter();
iter.backward_char();
get_buffer()->place_cursor(iter);
scroll_to(get_buffer()->get_insert());
return true;
}
}
// Insert []
else if(key->keyval==GDK_KEY_bracketleft && allow_insertion(iter)) {
if(symbol_count(iter, '[', ']')==0) {
get_buffer()->insert_at_cursor("[]");
auto iter=get_buffer()->get_insert()->get_iter();
iter.backward_char();
get_buffer()->place_cursor(iter);
scroll_to(get_buffer()->get_insert());
return true;
}
}
// Move left on ] in []
else if(key->keyval==GDK_KEY_bracketright) {
if(*iter==']' && symbol_count(iter, '[', ']')==0) {
iter.forward_char();
get_buffer()->place_cursor(iter);
scroll_to(get_buffer()->get_insert());
return true;
}
}
// Insert ''
else if(key->keyval==GDK_KEY_apostrophe && allow_insertion(iter) && symbol_count(iter, '\'', -1)%2==0) {
get_buffer()->insert_at_cursor("''");
auto iter=get_buffer()->get_insert()->get_iter();
iter.backward_char();
get_buffer()->place_cursor(iter);
scroll_to(get_buffer()->get_insert());
return true;
}
// Insert ""
else if(key->keyval==GDK_KEY_quotedbl && allow_insertion(iter) && symbol_count(iter, '"', -1)%2==0) {
get_buffer()->insert_at_cursor("\"\"");
auto iter=get_buffer()->get_insert()->get_iter();
iter.backward_char();
get_buffer()->place_cursor(iter);
scroll_to(get_buffer()->get_insert());
return true;
}
// Insert ; at the end of line, if iter is at the last )
else if(key->keyval==GDK_KEY_semicolon) {
if(*iter==')' && symbol_count(iter, '(', ')')==0) {
if(next_iter.ends_line()) {
Gtk::TextIter open_non_curly_bracket_iter;
if(find_open_non_curly_bracket_backward(previous_iter, open_non_curly_bracket_iter)) {
open_non_curly_bracket_iter.backward_char();
if(*open_non_curly_bracket_iter==' ')
open_non_curly_bracket_iter.backward_char();
if(get_token(open_non_curly_bracket_iter)!="for") {
iter.forward_char();
get_buffer()->place_cursor(iter);
get_buffer()->insert_at_cursor(";");
scroll_to(get_buffer()->get_insert());
return true;
}
}
}
}
}
// Delete ()
else if(key->keyval==GDK_KEY_BackSpace) {
if(*previous_iter=='(' && *iter==')' && symbol_count(iter, '(', ')')==0) {
auto next_iter=iter;
next_iter.forward_char();
get_buffer()->erase(previous_iter, next_iter);
scroll_to(get_buffer()->get_insert());
return true;
}
// Delete []
else if(*previous_iter=='[' && *iter==']' && symbol_count(iter, '[', ']')==0) {
auto next_iter=iter;
next_iter.forward_char();
get_buffer()->erase(previous_iter, next_iter);
scroll_to(get_buffer()->get_insert());
return true;
}
}
}
return false;
}
bool Source::View::on_button_press_event(GdkEventButton *event) {
if(event->type==GDK_2BUTTON_PRESS) {
Gtk::TextIter start, end;
get_buffer()->get_selection_bounds(start, end);
auto iter=start;
while((*iter>=48 && *iter<=57) || (*iter>=65 && *iter<=90) || (*iter>=97 && *iter<=122) || *iter==95) {
start=iter;
if(!iter.backward_char())
break;
}
while((*end>=48 && *end<=57) || (*end>=65 && *end<=90) || (*end>=97 && *end<=122) || *end==95) {
if(!end.forward_char())
break;
}
get_buffer()->select_range(start, end);
return true;
}
return Gsv::View::on_button_press_event(event);
}
bool Source::View::on_focus_in_event(GdkEventFocus* focus_event){
boost::system::error_code ec;
auto last_write_time=boost::filesystem::last_write_time(file_path, ec);
if(!ec && last_write_time>last_read_time)
Info::get().print("Caution: " + file_path.filename().string() + " was altered outside of juCi++");
return Gsv::View::on_focus_in_event(focus_event);
};
std::pair<char, unsigned> Source::View::find_tab_char_and_size() {
std::unordered_map<char, size_t> tab_chars;
std::unordered_map<unsigned, size_t> tab_sizes;
auto iter=get_buffer()->begin();
long tab_count=-1;
long last_tab_count=0;
bool single_quoted=false;
bool double_quoted=false;
//For bracket languages, TODO: add more language ids
if(is_bracket_language && !(language && language->get_id()=="html")) {
bool line_comment=false;
bool comment=false;
bool bracket_last_line=false;
char last_char=0;
long last_tab_diff=-1;
while(iter) {
if(iter.starts_line()) {
line_comment=false;
single_quoted=false;
double_quoted=false;
tab_count=0;
if(last_char=='{')
bracket_last_line=true;
else
bracket_last_line=false;
}
if(bracket_last_line && tab_count!=-1) {
if(*iter==' ') {
tab_chars[' ']++;
tab_count++;
}
else if(*iter=='\t') {
tab_chars['\t']++;
tab_count++;
}
else {
auto line_iter=iter;
char last_line_char=0;
while(line_iter && !line_iter.ends_line()) {
if(*line_iter!=' ' && *line_iter!='\t')
last_line_char=*line_iter;
if(*line_iter=='(')
break;
line_iter.forward_char();
}
if(last_line_char==':' || *iter=='#') {
tab_count=0;
if((iter.get_line()+1) < get_buffer()->get_line_count()) {
iter=get_buffer()->get_iter_at_line(iter.get_line()+1);
continue;
}
}
else if(!iter.ends_line()) {
if(tab_count!=last_tab_count)
tab_sizes[std::abs(tab_count-last_tab_count)]++;
last_tab_diff=std::abs(tab_count-last_tab_count);
last_tab_count=tab_count;
last_char=0;
}
}
}
auto prev_iter=iter;
prev_iter.backward_char();
auto prev_prev_iter=prev_iter;
prev_prev_iter.backward_char();
if(!double_quoted && *iter=='\'' && !(*prev_iter=='\\' && *prev_prev_iter!='\\'))
single_quoted=!single_quoted;
else if(!single_quoted && *iter=='\"' && !(*prev_iter=='\\' && *prev_prev_iter!='\\'))
double_quoted=!double_quoted;
else if(!single_quoted && !double_quoted) {
auto next_iter=iter;
next_iter.forward_char();
if(*iter=='/' && *next_iter=='/')
line_comment=true;
else if(*iter=='/' && *next_iter=='*')
comment=true;
else if(*iter=='*' && *next_iter=='/') {
iter.forward_char();
iter.forward_char();
comment=false;
}
}
if(!single_quoted && !double_quoted && !comment && !line_comment && *iter!=' ' && *iter!='\t' && !iter.ends_line())
last_char=*iter;
if(!single_quoted && !double_quoted && !comment && !line_comment && *iter=='}' && tab_count!=-1 && last_tab_diff!=-1)
last_tab_count-=last_tab_diff;
if(*iter!=' ' && *iter!='\t')
tab_count=-1;
iter.forward_char();
}
}
else {
long para_count=0;
while(iter) {
if(iter.starts_line())
tab_count=0;
if(tab_count!=-1 && para_count==0 && single_quoted==false && double_quoted==false) {
if(*iter==' ') {
tab_chars[' ']++;
tab_count++;
}
else if(*iter=='\t') {
tab_chars['\t']++;
tab_count++;
}
else if(!iter.ends_line()) {
if(tab_count!=last_tab_count)
tab_sizes[std::abs(tab_count-last_tab_count)]++;
last_tab_count=tab_count;
}
}
auto prev_iter=iter;
prev_iter.backward_char();
auto prev_prev_iter=prev_iter;
prev_prev_iter.backward_char();
if(!double_quoted && *iter=='\'' && !(*prev_iter=='\\' && *prev_prev_iter!='\\'))
single_quoted=!single_quoted;
else if(!single_quoted && *iter=='\"' && !(*prev_iter=='\\' && *prev_prev_iter!='\\'))
double_quoted=!double_quoted;
else if(!single_quoted && !double_quoted) {
if(*iter=='(')
para_count++;
else if(*iter==')')
para_count--;
}
if(*iter!=' ' && *iter!='\t')
tab_count=-1;
iter.forward_char();
}
}
char found_tab_char=0;
size_t occurences=0;
for(auto &tab_char: tab_chars) {
if(tab_char.second>occurences) {
found_tab_char=tab_char.first;
occurences=tab_char.second;
}
}
unsigned found_tab_size=0;
occurences=0;
for(auto &tab_size: tab_sizes) {
if(tab_size.second>occurences) {
found_tab_size=tab_size.first;
occurences=tab_size.second;
}
}
return {found_tab_char, found_tab_size};
}
/////////////////////
//// GenericView ////
/////////////////////
Source::GenericView::GenericView(const boost::filesystem::path &file_path, Glib::RefPtr<Gsv::Language> language) : View(file_path, language) {
configure();
spellcheck_all=true;
if(language)
get_source_buffer()->set_language(language);
auto completion=get_completion();
completion->property_show_headers()=false;
completion->property_show_icons()=false;
completion->property_accelerators()=0;
auto completion_words=Gsv::CompletionWords::create("", Glib::RefPtr<Gdk::Pixbuf>());
completion_words->register_provider(get_buffer());
completion->add_provider(completion_words);
if(language) {
auto language_manager=Gsv::LanguageManager::get_default();
auto search_paths=language_manager->get_search_path();
bool found_language_file=false;
boost::filesystem::path language_file;
for(auto &search_path: search_paths) {
boost::filesystem::path p(static_cast<std::string>(search_path)+'/'+static_cast<std::string>(language->get_id())+".lang");
if(boost::filesystem::exists(p) && boost::filesystem::is_regular_file(p)) {
language_file=p;
found_language_file=true;
break;
}
}
if(found_language_file) {
auto completion_buffer_keywords=CompletionBuffer::create();
boost::property_tree::ptree pt;
try {
boost::property_tree::xml_parser::read_xml(language_file.string(), pt);
}
catch(const std::exception &e) {
Terminal::get().print("Error: error parsing language file "+language_file.string()+": "+e.what()+'\n', true);
}
bool has_context_class=false;
parse_language_file(completion_buffer_keywords, has_context_class, pt);
if(!has_context_class)
spellcheck_all=false;
completion_words->register_provider(completion_buffer_keywords);
}
}
}
void Source::GenericView::parse_language_file(Glib::RefPtr<CompletionBuffer> &completion_buffer, bool &has_context_class, const boost::property_tree::ptree &pt) {
bool case_insensitive=false;
for(auto &node: pt) {
if(node.first=="<xmlcomment>") {
auto data=static_cast<std::string>(node.second.data());
std::transform(data.begin(), data.end(), data.begin(), ::tolower);
if(data.find("case insensitive")!=std::string::npos)
case_insensitive=true;
}
else if(node.first=="keyword") {
auto data=static_cast<std::string>(node.second.data());
completion_buffer->insert_at_cursor(data+'\n');
if(case_insensitive) {
std::transform(data.begin(), data.end(), data.begin(), ::tolower);
completion_buffer->insert_at_cursor(data+'\n');
}
}
else if(!has_context_class && node.first=="context") {
auto class_attribute=node.second.get<std::string>("<xmlattr>.class", "");
auto class_disabled_attribute=node.second.get<std::string>("<xmlattr>.class-disabled", "");
if(class_attribute.size()>0 || class_disabled_attribute.size()>0)
has_context_class=true;
}
try {
parse_language_file(completion_buffer, has_context_class, node.second);
}
catch(const std::exception &e) {
}
}
}