90 lines
2.4 KiB
C++
90 lines
2.4 KiB
C++
// Copyright (C) 2023 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include "filesystemmodel.h"
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#include <QStandardPaths>
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#include <QMimeDatabase>
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#include <QTextDocument>
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#include <QTextObject>
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FileSystemModel::FileSystemModel(QObject *parent) : QFileSystemModel(parent)
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{
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setFilter(QDir::AllEntries | QDir::Hidden | QDir::NoDotAndDotDot);
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setInitialDirectory();
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}
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QString FileSystemModel::readFile(const QString &filePath)
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{
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// Don't issue errors for an empty path, as the initial binding
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// will result in an empty path, and that's OK.
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if (filePath.isEmpty())
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return {};
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QFile file(filePath);
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if (file.size() >= 2'000'000)
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return tr("File size is too big.\nYou can read files up to %1 MB.").arg(2);
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static const QMimeDatabase db;
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const QMimeType mime = db.mimeTypeForFile(QFileInfo(file));
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// Check if the mimetype is supported and return the content.
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const auto mimeTypesForFile = mime.parentMimeTypes();
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for (const auto &m : mimeTypesForFile) {
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if (m.contains("text", Qt::CaseInsensitive)
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|| mime.comment().contains("text", Qt::CaseInsensitive)) {
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if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
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return tr("Error opening the File!");
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QTextStream stream(&file);
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return stream.readAll();
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}
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}
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return tr("Filetype not supported!");
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}
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// This function gets called from Editor.qml
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int FileSystemModel::currentLineNumber(QQuickTextDocument *textDocument, int cursorPosition)
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{
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if (QTextDocument *td = textDocument->textDocument()) {
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QTextBlock tb = td->findBlock(cursorPosition);
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return tb.blockNumber();
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}
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return -1;
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}
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int FileSystemModel::columnCount(const QModelIndex &parent) const
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{
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Q_UNUSED(parent)
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return 1;
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}
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QModelIndex FileSystemModel::rootIndex() const
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{
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return m_rootIndex;
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}
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void FileSystemModel::setRootIndex(const QModelIndex index)
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{
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if (index == m_rootIndex)
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return;
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m_rootIndex = index;
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emit rootIndexChanged();
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}
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void FileSystemModel::setInitialDirectory(const QString &path)
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{
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QDir dir(path);
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if (dir.makeAbsolute())
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setRootPath(dir.path());
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else
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setRootPath(getDefaultRootDir());
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setRootIndex(QFileSystemModel::index(dir.path(), 0));
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}
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QString FileSystemModel::getDefaultRootDir()
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{
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return QStandardPaths::writableLocation(QStandardPaths::HomeLocation);
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}
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