Aegisub/src/dialog_spellchecker.cpp

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// Copyright (c) 2011, Thomas Goyne <plorkyeran@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// Aegisub Project http://www.aegisub.org/
#include "ass_dialogue.h"
#include "ass_file.h"
#include "compat.h"
#include "dialog_manager.h"
#include "help_button.h"
#include "include/aegisub/context.h"
#include "include/aegisub/spellchecker.h"
#include "libresrc/libresrc.h"
#include "options.h"
#include "selection_controller.h"
#include "text_selection_controller.h"
#include <libaegisub/ass/dialogue_parser.h>
#include <libaegisub/exception.h>
#include <libaegisub/spellchecker.h>
#include <boost/locale/conversion.hpp>
#include <map>
#include <memory>
#include <set>
#include <wx/arrstr.h>
#include <wx/checkbox.h>
#include <wx/combobox.h>
#include <wx/dialog.h>
#include <wx/intl.h>
#include <wx/listbox.h>
#include <wx/msgdlg.h>
#include <wx/sizer.h>
#include <wx/stattext.h>
#include <wx/textctrl.h>
namespace {
class DialogSpellChecker final : public wxDialog {
agi::Context *context; ///< The project context
std::unique_ptr<agi::SpellChecker> spellchecker; ///< The spellchecking engine
/// Words which the user has indicated should always be corrected
std::map<std::string, std::string> auto_replace;
/// Words which the user has temporarily added to the dictionary
std::set<std::string> auto_ignore;
/// Dictionaries available
wxArrayString dictionary_lang_codes;
int word_start; ///< Start index of the current misspelled word
int word_len; ///< Length of the current misspelled word
wxTextCtrl *orig_word; ///< The word being corrected
wxTextCtrl *replace_word; ///< The replacement that will be used if "Replace" is clicked
wxListBox *suggest_list; ///< The list of suggested replacements
wxComboBox *language; ///< The list of available languages
wxButton *add_button; ///< Add word to currently active dictionary
wxButton *remove_button; ///< Remove word from currently active dictionary
AssDialogue *start_line = nullptr; ///< The first line checked
AssDialogue *active_line = nullptr; ///< The most recently checked line
bool has_looped = false; ///< Has the search already looped from the end to beginning?
/// Find the next misspelled word and close the dialog if there are none
/// @return Are there any more misspelled words?
bool FindNext();
/// Check a single line for misspellings
/// @param active_line Line to check
/// @param start_pos Index in the line to start at
/// @param[in,out] commit_id Commit id for coalescing autoreplace commits
/// @return Was a misspelling found?
bool CheckLine(AssDialogue *active_line, int start_pos, int *commit_id);
/// Set the current word to be corrected
void SetWord(std::string const& word);
/// Correct the currently selected word
void Replace();
void OnChangeLanguage(wxCommandEvent&);
void OnChangeSuggestion(wxCommandEvent&);
void OnReplace(wxCommandEvent&);
public:
DialogSpellChecker(agi::Context *context);
};
DialogSpellChecker::DialogSpellChecker(agi::Context *context)
: wxDialog(context->parent, -1, _("Spell Checker"))
, context(context)
, spellchecker(SpellCheckerFactory::GetSpellChecker())
{
SetIcon(GETICON(spellcheck_toolbutton_16));
wxSizer *main_sizer = new wxBoxSizer(wxVERTICAL);
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auto current_word_sizer = new wxFlexGridSizer(2, 5, 5);
main_sizer->Add(current_word_sizer, wxSizerFlags().Expand().Border(wxALL, 5));
wxSizer *bottom_sizer = new wxBoxSizer(wxHORIZONTAL);
main_sizer->Add(bottom_sizer, wxSizerFlags().Expand().Border(~wxTOP & wxALL, 5));
wxSizer *bottom_left_sizer = new wxBoxSizer(wxVERTICAL);
bottom_sizer->Add(bottom_left_sizer, wxSizerFlags().Expand().Border(wxRIGHT, 5));
wxSizer *actions_sizer = new wxBoxSizer(wxVERTICAL);
bottom_sizer->Add(actions_sizer, wxSizerFlags().Expand());
// Misspelled word and currently selected correction
current_word_sizer->AddGrowableCol(1, 1);
current_word_sizer->Add(new wxStaticText(this, -1, _("Misspelled word:")), 0, wxALIGN_CENTER_VERTICAL);
current_word_sizer->Add(orig_word = new wxTextCtrl(this, -1, "", wxDefaultPosition, wxDefaultSize, wxTE_READONLY), wxSizerFlags(1).Expand());
current_word_sizer->Add(new wxStaticText(this, -1, _("Replace with:")), 0, wxALIGN_CENTER_VERTICAL);
current_word_sizer->Add(replace_word = new wxTextCtrl(this, -1, ""), wxSizerFlags(1).Expand());
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replace_word->Bind(wxEVT_TEXT, [=](wxCommandEvent&) {
remove_button->Enable(spellchecker->CanRemoveWord(from_wx(replace_word->GetValue())));
});
// List of suggested corrections
suggest_list = new wxListBox(this, -1, wxDefaultPosition, wxSize(300, 150));
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suggest_list->Bind(wxEVT_LISTBOX, &DialogSpellChecker::OnChangeSuggestion, this);
suggest_list->Bind(wxEVT_LISTBOX_DCLICK, &DialogSpellChecker::OnReplace, this);
bottom_left_sizer->Add(suggest_list, wxSizerFlags(1).Expand());
// List of supported spellchecker languages
{
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if (!spellchecker) {
wxMessageBox("No spellchecker available.", "Error", wxOK | wxICON_ERROR | wxCENTER);
throw agi::UserCancelException("No spellchecker available");
}
dictionary_lang_codes = to_wx(spellchecker->GetLanguageList());
if (dictionary_lang_codes.empty()) {
wxMessageBox("No spellchecker dictionaries available.", "Error", wxOK | wxICON_ERROR | wxCENTER);
throw agi::UserCancelException("No spellchecker dictionaries available");
}
wxArrayString language_names(dictionary_lang_codes);
for (size_t i = 0; i < dictionary_lang_codes.size(); ++i) {
if (const wxLanguageInfo *info = wxLocale::FindLanguageInfo(dictionary_lang_codes[i]))
language_names[i] = info->Description;
}
language = new wxComboBox(this, -1, "", wxDefaultPosition, wxDefaultSize, language_names, wxCB_DROPDOWN | wxCB_READONLY);
wxString cur_lang = to_wx(OPT_GET("Tool/Spell Checker/Language")->GetString());
int cur_lang_index = dictionary_lang_codes.Index(cur_lang);
if (cur_lang_index == wxNOT_FOUND) cur_lang_index = dictionary_lang_codes.Index("en");
if (cur_lang_index == wxNOT_FOUND) cur_lang_index = dictionary_lang_codes.Index("en_US");
if (cur_lang_index == wxNOT_FOUND) cur_lang_index = 0;
language->SetSelection(cur_lang_index);
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language->Bind(wxEVT_COMBOBOX, &DialogSpellChecker::OnChangeLanguage, this);
bottom_left_sizer->Add(language, wxSizerFlags().Expand().Border(wxTOP, 5));
}
{
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wxSizerFlags button_flags = wxSizerFlags().Expand().Border(wxBOTTOM, 5);
auto make_checkbox = [&](wxString const& text, const char *opt) {
auto checkbox = new wxCheckBox(this, -1, text);
actions_sizer->Add(checkbox, button_flags);
checkbox->SetValue(OPT_GET(opt)->GetBool());
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checkbox->Bind(wxEVT_CHECKBOX,
[=](wxCommandEvent &evt) { OPT_SET(opt)->SetBool(!!evt.GetInt()); });
};
make_checkbox(_("&Skip Comments"), "Tool/Spell Checker/Skip Comments");
make_checkbox(_("Ignore &UPPERCASE words"), "Tool/Spell Checker/Skip Uppercase");
wxButton *button;
actions_sizer->Add(button = new wxButton(this, -1, _("&Replace")), button_flags);
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button->Bind(wxEVT_BUTTON, &DialogSpellChecker::OnReplace, this);
actions_sizer->Add(button = new wxButton(this, -1, _("Replace &all")), button_flags);
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button->Bind(wxEVT_BUTTON, [=](wxCommandEvent&) {
auto_replace[from_wx(orig_word->GetValue())] = from_wx(replace_word->GetValue());
Replace();
FindNext();
});
actions_sizer->Add(button = new wxButton(this, -1, _("&Ignore")), button_flags);
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button->Bind(wxEVT_BUTTON, [=](wxCommandEvent&) { FindNext(); });
actions_sizer->Add(button = new wxButton(this, -1, _("Ignore a&ll")), button_flags);
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button->Bind(wxEVT_BUTTON, [=](wxCommandEvent&) {
auto_ignore.insert(from_wx(orig_word->GetValue()));
FindNext();
});
actions_sizer->Add(add_button = new wxButton(this, -1, _("Add to &dictionary")), button_flags);
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add_button->Bind(wxEVT_BUTTON, [=](wxCommandEvent&) {
spellchecker->AddWord(from_wx(orig_word->GetValue()));
FindNext();
});
actions_sizer->Add(remove_button = new wxButton(this, -1, _("Remove fro&m dictionary")), button_flags);
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remove_button->Bind(wxEVT_BUTTON, [=](wxCommandEvent&) {
spellchecker->RemoveWord(from_wx(replace_word->GetValue()));
SetWord(from_wx(orig_word->GetValue()));
});
actions_sizer->Add(new HelpButton(this, "Spell Checker"), button_flags);
actions_sizer->Add(new wxButton(this, wxID_CANCEL), button_flags.Border(0));
}
SetSizerAndFit(main_sizer);
CenterOnParent();
if (FindNext())
Show();
}
void DialogSpellChecker::OnReplace(wxCommandEvent&) {
Replace();
FindNext();
}
void DialogSpellChecker::OnChangeLanguage(wxCommandEvent&) {
wxString code = dictionary_lang_codes[language->GetSelection()];
OPT_SET("Tool/Spell Checker/Language")->SetString(from_wx(code));
FindNext();
}
void DialogSpellChecker::OnChangeSuggestion(wxCommandEvent&) {
replace_word->SetValue(suggest_list->GetStringSelection());
}
bool DialogSpellChecker::FindNext() {
AssDialogue *real_active_line = context->selectionController->GetActiveLine();
// User has changed the active line; restart search from this position
if (real_active_line != active_line) {
active_line = real_active_line;
has_looped = false;
start_line = active_line;
}
int start_pos = context->textSelectionController->GetInsertionPoint();
int commit_id = -1;
if (CheckLine(active_line, start_pos, &commit_id))
return true;
auto it = context->ass->iterator_to(*active_line);
// Note that it is deliberate that the start line is checked twice, as if
// the cursor is past the first misspelled word in the current line, that
// word should be hit last
while(!has_looped || active_line != start_line) {
// Wrap around to the beginning if we hit the end
if (++it == context->ass->Events.end()) {
it = context->ass->Events.begin();
has_looped = true;
}
active_line = &*it;
if (CheckLine(active_line, 0, &commit_id))
return true;
}
if (IsShown()) {
wxMessageBox(_("Aegisub has finished checking spelling of this script."), _("Spell checking complete."));
Close();
}
else {
wxMessageBox(_("Aegisub has found no spelling mistakes in this script."), _("Spell checking complete."));
throw agi::UserCancelException("No spelling mistakes");
}
return false;
}
bool DialogSpellChecker::CheckLine(AssDialogue *active_line, int start_pos, int *commit_id) {
if (active_line->Comment && OPT_GET("Tool/Spell Checker/Skip Comments")->GetBool()) return false;
std::string text = active_line->Text;
auto tokens = agi::ass::TokenizeDialogueBody(text);
agi::ass::SplitWords(text, tokens);
bool ignore_uppercase = OPT_GET("Tool/Spell Checker/Skip Uppercase")->GetBool();
word_start = 0;
for (auto const& tok : tokens) {
if (tok.type != agi::ass::DialogueTokenType::WORD || word_start < start_pos) {
word_start += tok.length;
continue;
}
word_len = tok.length;
std::string word = text.substr(word_start, word_len);
if (auto_ignore.count(word) || spellchecker->CheckWord(word) || (ignore_uppercase && word == boost::locale::to_upper(word))) {
word_start += tok.length;
continue;
}
auto auto_rep = auto_replace.find(word);
if (auto_rep == auto_replace.end()) {
#ifdef __WXGTK__
// http://trac.wxwidgets.org/ticket/14369
orig_word->Remove(0, -1);
replace_word->Remove(0, -1);
#endif
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context->selectionController->SetSelectionAndActive({ active_line }, active_line);
SetWord(word);
return true;
}
text.replace(word_start, word_len, auto_rep->second);
active_line->Text = text;
*commit_id = context->ass->Commit(_("spell check replace"), AssFile::COMMIT_DIAG_TEXT, *commit_id);
word_start += auto_rep->second.size();
}
return false;
}
void DialogSpellChecker::Replace() {
AssDialogue *active_line = context->selectionController->GetActiveLine();
// Only replace if the user hasn't changed the selection to something else
if (to_wx(active_line->Text.get().substr(word_start, word_len)) == orig_word->GetValue()) {
std::string text = active_line->Text;
text.replace(word_start, word_len, from_wx(replace_word->GetValue()));
active_line->Text = text;
context->ass->Commit(_("spell check replace"), AssFile::COMMIT_DIAG_TEXT);
context->textSelectionController->SetInsertionPoint(word_start + replace_word->GetValue().size());
}
}
void DialogSpellChecker::SetWord(std::string const& word) {
orig_word->SetValue(to_wx(word));
wxArrayString suggestions = to_wx(spellchecker->GetSuggestions(word));
replace_word->SetValue(suggestions.size() ? suggestions[0] : to_wx(word));
suggest_list->Clear();
suggest_list->Append(suggestions);
context->textSelectionController->SetSelection(word_start, word_start + word_len);
context->textSelectionController->SetInsertionPoint(word_start + word_len);
add_button->Enable(spellchecker->CanAddWord(word));
}
}
void ShowSpellcheckerDialog(agi::Context *c) {
c->dialog->Show<DialogSpellChecker>(c);
}