mirror of
https://github.com/Artikash/Textractor.git
synced 2024-12-24 01:14:12 +08:00
137 lines
3.8 KiB
C++
137 lines
3.8 KiB
C++
#include "extenwindow.h"
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#include "ui_extenwindow.h"
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#include "defs.h"
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#include <concrt.h>
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#include <QDragEnterEvent>
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#include <QDropEvent>
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#include <QMimeData>
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#include <QUrl>
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#include <QLabel>
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extern const char* EXTENSIONS;
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extern const char* EXTEN_WINDOW_INSTRUCTIONS;
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namespace
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{
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struct Extension
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{
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std::wstring name;
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wchar_t*(*callback)(wchar_t*, const InfoForExtension*);
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};
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concurrency::reader_writer_lock extenMutex;
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std::vector<Extension> extensions;
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void Load(QString extenName)
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{
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if (extenName == ITH_DLL) return;
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// Extension is dll and exports "OnNewSentence"
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if (auto callback = (decltype(Extension::callback))GetProcAddress(LoadLibraryOnce(S(extenName)), "OnNewSentence"))
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{
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std::scoped_lock writeLock(extenMutex);
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extensions.push_back({ S(extenName), callback });
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}
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}
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void Unload(int index)
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{
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std::scoped_lock writeLock(extenMutex);
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FreeLibrary(GetModuleHandleW(extensions.at(index).name.c_str()));
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extensions.erase(extensions.begin() + index);
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}
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void Reorder(QStringList extenNames)
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{
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std::scoped_lock writeLock(extenMutex);
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std::vector<Extension> extensions;
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for (auto extenName : extenNames)
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extensions.push_back(*std::find_if(::extensions.begin(), ::extensions.end(), [&](auto extension) { return extension.name == S(extenName); }));
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::extensions = extensions;
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}
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}
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bool DispatchSentenceToExtensions(std::wstring& sentence, const InfoForExtension* miscInfo)
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{
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wchar_t* sentenceBuffer = (wchar_t*)HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS, (sentence.size() + 1) * sizeof(wchar_t));
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wcscpy_s(sentenceBuffer, sentence.size() + 1, sentence.c_str());
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concurrency::reader_writer_lock::scoped_lock_read readLock(extenMutex);
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for (const auto& extension : extensions)
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if (*(sentenceBuffer = extension.callback(sentenceBuffer, miscInfo)) == L'\0') break;
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sentence = sentenceBuffer;
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HeapFree(GetProcessHeap(), 0, sentenceBuffer);
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return !sentence.empty();
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}
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ExtenWindow::ExtenWindow(QWidget* parent) :
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QMainWindow(parent, Qt::WindowCloseButtonHint),
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ui(new Ui::ExtenWindow)
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{
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ui->setupUi(this);
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ui->vboxLayout->addWidget(new QLabel(EXTEN_WINDOW_INSTRUCTIONS, this));
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setWindowTitle(EXTENSIONS);
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ui->extenList->installEventFilter(this);
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if (!QFile::exists(EXTEN_SAVE_FILE)) QTextFile(EXTEN_SAVE_FILE, QIODevice::WriteOnly).write(DEFAULT_EXTENSIONS);
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for (auto extenName : QString(QTextFile(EXTEN_SAVE_FILE, QIODevice::ReadOnly).readAll()).split(">")) Load(extenName);
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Sync();
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}
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ExtenWindow::~ExtenWindow()
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{
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delete ui;
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}
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void ExtenWindow::Sync()
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{
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ui->extenList->clear();
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QTextFile extenSaveFile(EXTEN_SAVE_FILE, QIODevice::WriteOnly | QIODevice::Truncate);
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concurrency::reader_writer_lock::scoped_lock_read readLock(extenMutex);
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for (auto extension : extensions)
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{
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ui->extenList->addItem(S(extension.name));
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extenSaveFile.write((S(extension.name) + ">").toUtf8());
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}
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}
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void ExtenWindow::Add(QFileInfo extenFile)
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{
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if (extenFile.suffix() != "dll") return;
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QFile::copy(extenFile.absoluteFilePath(), extenFile.fileName());
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Load(extenFile.completeBaseName());
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Sync();
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}
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bool ExtenWindow::eventFilter(QObject* target, QEvent* event)
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{
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// See https://stackoverflow.com/questions/1224432/how-do-i-respond-to-an-internal-drag-and-drop-operation-using-a-qlistwidget/1528215
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if (event->type() == QEvent::ChildRemoved)
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{
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QStringList extenNames;
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for (int i = 0; i < ui->extenList->count(); ++i) extenNames.push_back(ui->extenList->item(i)->text());
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Reorder(extenNames);
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Sync();
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}
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return false;
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}
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void ExtenWindow::keyPressEvent(QKeyEvent* event)
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{
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if (event->key() == Qt::Key_Delete && ui->extenList->currentItem() != nullptr)
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{
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Unload(ui->extenList->currentIndex().row());
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Sync();
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}
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}
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void ExtenWindow::dragEnterEvent(QDragEnterEvent* event)
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{
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event->acceptProposedAction();
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}
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void ExtenWindow::dropEvent(QDropEvent* event)
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{
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for (auto file : event->mimeData()->urls()) Add(file.toLocalFile());
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}
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