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Diffstat (limited to 'examples/quickcontrols2/texteditor/documenthandler.cpp')
| -rw-r--r-- | examples/quickcontrols2/texteditor/documenthandler.cpp | 403 |
1 files changed, 0 insertions, 403 deletions
diff --git a/examples/quickcontrols2/texteditor/documenthandler.cpp b/examples/quickcontrols2/texteditor/documenthandler.cpp deleted file mode 100644 index e82fbb8c..00000000 --- a/examples/quickcontrols2/texteditor/documenthandler.cpp +++ /dev/null @@ -1,403 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "documenthandler.h" - -#include <QFile> -#include <QFileInfo> -#include <QFileSelector> -#include <QMimeDatabase> -#include <QQmlFile> -#include <QQmlFileSelector> -#include <QQuickTextDocument> -#include <QTextCharFormat> -#include <QStringDecoder> -#include <QTextDocument> -#include <QDebug> - -DocumentHandler::DocumentHandler(QObject *parent) - : QObject(parent) - , m_document(nullptr) - , m_cursorPosition(-1) - , m_selectionStart(0) - , m_selectionEnd(0) -{ -} - -QQuickTextDocument *DocumentHandler::document() const -{ - return m_document; -} - -void DocumentHandler::setDocument(QQuickTextDocument *document) -{ - if (document == m_document) - return; - - if (m_document) - m_document->textDocument()->disconnect(this); - m_document = document; - if (m_document) - connect(m_document->textDocument(), &QTextDocument::modificationChanged, this, &DocumentHandler::modifiedChanged); - emit documentChanged(); -} - -int DocumentHandler::cursorPosition() const -{ - return m_cursorPosition; -} - -void DocumentHandler::setCursorPosition(int position) -{ - if (position == m_cursorPosition) - return; - - m_cursorPosition = position; - reset(); - emit cursorPositionChanged(); -} - -int DocumentHandler::selectionStart() const -{ - return m_selectionStart; -} - -void DocumentHandler::setSelectionStart(int position) -{ - if (position == m_selectionStart) - return; - - m_selectionStart = position; - emit selectionStartChanged(); -} - -int DocumentHandler::selectionEnd() const -{ - return m_selectionEnd; -} - -void DocumentHandler::setSelectionEnd(int position) -{ - if (position == m_selectionEnd) - return; - - m_selectionEnd = position; - emit selectionEndChanged(); -} - -QString DocumentHandler::fontFamily() const -{ - QTextCursor cursor = textCursor(); - if (cursor.isNull()) - return QString(); - QTextCharFormat format = cursor.charFormat(); - return format.font().family(); -} - -void DocumentHandler::setFontFamily(const QString &family) -{ - QTextCharFormat format; - format.setFontFamily(family); - mergeFormatOnWordOrSelection(format); - emit fontFamilyChanged(); -} - -QColor DocumentHandler::textColor() const -{ - QTextCursor cursor = textCursor(); - if (cursor.isNull()) - return QColor(Qt::black); - QTextCharFormat format = cursor.charFormat(); - return format.foreground().color(); -} - -void DocumentHandler::setTextColor(const QColor &color) -{ - QTextCharFormat format; - format.setForeground(QBrush(color)); - mergeFormatOnWordOrSelection(format); - emit textColorChanged(); -} - -Qt::Alignment DocumentHandler::alignment() const -{ - QTextCursor cursor = textCursor(); - if (cursor.isNull()) - return Qt::AlignLeft; - return textCursor().blockFormat().alignment(); -} - -void DocumentHandler::setAlignment(Qt::Alignment alignment) -{ - QTextBlockFormat format; - format.setAlignment(alignment); - QTextCursor cursor = textCursor(); - cursor.mergeBlockFormat(format); - emit alignmentChanged(); -} - -bool DocumentHandler::bold() const -{ - QTextCursor cursor = textCursor(); - if (cursor.isNull()) - return false; - return textCursor().charFormat().fontWeight() == QFont::Bold; -} - -void DocumentHandler::setBold(bool bold) -{ - QTextCharFormat format; - format.setFontWeight(bold ? QFont::Bold : QFont::Normal); - mergeFormatOnWordOrSelection(format); - emit boldChanged(); -} - -bool DocumentHandler::italic() const -{ - QTextCursor cursor = textCursor(); - if (cursor.isNull()) - return false; - return textCursor().charFormat().fontItalic(); -} - -void DocumentHandler::setItalic(bool italic) -{ - QTextCharFormat format; - format.setFontItalic(italic); - mergeFormatOnWordOrSelection(format); - emit italicChanged(); -} - -bool DocumentHandler::underline() const -{ - QTextCursor cursor = textCursor(); - if (cursor.isNull()) - return false; - return textCursor().charFormat().fontUnderline(); -} - -void DocumentHandler::setUnderline(bool underline) -{ - QTextCharFormat format; - format.setFontUnderline(underline); - mergeFormatOnWordOrSelection(format); - emit underlineChanged(); -} - -int DocumentHandler::fontSize() const -{ - QTextCursor cursor = textCursor(); - if (cursor.isNull()) - return 0; - QTextCharFormat format = cursor.charFormat(); - return format.font().pointSize(); -} - -void DocumentHandler::setFontSize(int size) -{ - if (size <= 0) - return; - - QTextCursor cursor = textCursor(); - if (cursor.isNull()) - return; - - if (!cursor.hasSelection()) - cursor.select(QTextCursor::WordUnderCursor); - - if (cursor.charFormat().property(QTextFormat::FontPointSize).toInt() == size) - return; - - QTextCharFormat format; - format.setFontPointSize(size); - mergeFormatOnWordOrSelection(format); - emit fontSizeChanged(); -} - -QString DocumentHandler::fileName() const -{ - const QString filePath = QQmlFile::urlToLocalFileOrQrc(m_fileUrl); - const QString fileName = QFileInfo(filePath).fileName(); - if (fileName.isEmpty()) - return QStringLiteral("untitled.txt"); - return fileName; -} - -QString DocumentHandler::fileType() const -{ - return QFileInfo(fileName()).suffix(); -} - -QUrl DocumentHandler::fileUrl() const -{ - return m_fileUrl; -} - -void DocumentHandler::load(const QUrl &fileUrl) -{ - if (fileUrl == m_fileUrl) - return; - - QQmlEngine *engine = qmlEngine(this); - if (!engine) { - qWarning() << "load() called before DocumentHandler has QQmlEngine"; - return; - } - - const QUrl path = QQmlFileSelector::get(engine)->selector()->select(fileUrl); - const QString fileName = QQmlFile::urlToLocalFileOrQrc(path); - if (QFile::exists(fileName)) { - QMimeType mime = QMimeDatabase().mimeTypeForFile(fileName); - QFile file(fileName); - if (file.open(QFile::ReadOnly)) { - QByteArray data = file.readAll(); - if (QTextDocument *doc = textDocument()) { - doc->setBaseUrl(path.adjusted(QUrl::RemoveFilename)); - doc->setModified(false); - if (mime.inherits("text/markdown")) { - emit loaded(QString::fromUtf8(data), Qt::MarkdownText); - } else { - auto encoding = QStringConverter::encodingForHtml(data); - if (encoding) { - QStringDecoder decoder(*encoding); - emit loaded(decoder(data), Qt::AutoText); - } else { - // fall back to utf8 - emit loaded(QString::fromUtf8(data), Qt::AutoText); - } - } - } - - reset(); - } - } - - m_fileUrl = fileUrl; - emit fileUrlChanged(); -} - -void DocumentHandler::saveAs(const QUrl &fileUrl) -{ - QTextDocument *doc = textDocument(); - if (!doc) - return; - - const QString filePath = fileUrl.toLocalFile(); - const bool isHtml = QFileInfo(filePath).suffix().contains(QLatin1String("htm")); - QFile file(filePath); - if (!file.open(QFile::WriteOnly | QFile::Truncate | (isHtml ? QFile::NotOpen : QFile::Text))) { - emit error(tr("Cannot save: ") + file.errorString()); - return; - } - file.write((isHtml ? doc->toHtml() : doc->toPlainText()).toUtf8()); - file.close(); - - if (fileUrl == m_fileUrl) - return; - - m_fileUrl = fileUrl; - emit fileUrlChanged(); -} - -void DocumentHandler::reset() -{ - emit fontFamilyChanged(); - emit alignmentChanged(); - emit boldChanged(); - emit italicChanged(); - emit underlineChanged(); - emit fontSizeChanged(); - emit textColorChanged(); -} - -QTextCursor DocumentHandler::textCursor() const -{ - QTextDocument *doc = textDocument(); - if (!doc) - return QTextCursor(); - - QTextCursor cursor = QTextCursor(doc); - if (m_selectionStart != m_selectionEnd) { - cursor.setPosition(m_selectionStart); - cursor.setPosition(m_selectionEnd, QTextCursor::KeepAnchor); - } else { - cursor.setPosition(m_cursorPosition); - } - return cursor; -} - -QTextDocument *DocumentHandler::textDocument() const -{ - if (!m_document) - return nullptr; - - return m_document->textDocument(); -} - -void DocumentHandler::mergeFormatOnWordOrSelection(const QTextCharFormat &format) -{ - QTextCursor cursor = textCursor(); - if (!cursor.hasSelection()) - cursor.select(QTextCursor::WordUnderCursor); - cursor.mergeCharFormat(format); -} - -bool DocumentHandler::modified() const -{ - return m_document && m_document->textDocument()->isModified(); -} - -void DocumentHandler::setModified(bool m) -{ - if (m_document) - m_document->textDocument()->setModified(m); -} - -#include "moc_documenthandler.cpp" |