372 lines
9.8 KiB
C++
372 lines
9.8 KiB
C++
/****************************************************************************
|
|
**
|
|
** 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 <QQmlFile>
|
|
#include <QQmlFileSelector>
|
|
#include <QQuickTextDocument>
|
|
#include <QTextCharFormat>
|
|
#include <QTextCodec>
|
|
#include <QTextDocument>
|
|
|
|
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;
|
|
|
|
m_document = document;
|
|
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)) {
|
|
QFile file(fileName);
|
|
if (file.open(QFile::ReadOnly)) {
|
|
QByteArray data = file.readAll();
|
|
QTextCodec *codec = QTextCodec::codecForHtml(data);
|
|
if (QTextDocument *doc = textDocument())
|
|
doc->setModified(false);
|
|
|
|
emit loaded(codec->toUnicode(data));
|
|
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);
|
|
}
|