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+/****************************************************************************
+**
+** Copyright (C) 2016 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 <QtGui/QTextDocument>
+#include <QtGui/QTextCursor>
+#include <QtGui/QFontDatabase>
+#include <QtCore/QFileInfo>
+
+DocumentHandler::DocumentHandler()
+ : m_target(0)
+ , m_doc(0)
+ , m_cursorPosition(-1)
+ , m_selectionStart(0)
+ , m_selectionEnd(0)
+{
+}
+
+void DocumentHandler::setTarget(QQuickItem *target)
+{
+ m_doc = 0;
+ m_target = target;
+ if (!m_target)
+ return;
+
+ QVariant doc = m_target->property("textDocument");
+ if (doc.canConvert<QQuickTextDocument*>()) {
+ QQuickTextDocument *qqdoc = doc.value<QQuickTextDocument*>();
+ if (qqdoc)
+ m_doc = qqdoc->textDocument();
+ }
+ emit targetChanged();
+}
+
+void DocumentHandler::setFileUrl(const QUrl &arg)
+{
+ if (m_fileUrl != arg) {
+ m_fileUrl = arg;
+ QString fileName = QQmlFile::urlToLocalFileOrQrc(arg);
+ if (QFile::exists(fileName)) {
+ QFile file(fileName);
+ if (file.open(QFile::ReadOnly)) {
+ QByteArray data = file.readAll();
+ QTextCodec *codec = QTextCodec::codecForHtml(data);
+ setText(codec->toUnicode(data));
+ if (m_doc)
+ m_doc->setModified(false);
+ if (fileName.isEmpty())
+ m_documentTitle = QStringLiteral("untitled.txt");
+ else
+ m_documentTitle = QFileInfo(fileName).fileName();
+
+ emit textChanged();
+ emit documentTitleChanged();
+
+ reset();
+ }
+ }
+ emit fileUrlChanged();
+ }
+}
+
+QString DocumentHandler::documentTitle() const
+{
+ return m_documentTitle;
+}
+
+void DocumentHandler::setDocumentTitle(QString arg)
+{
+ if (m_documentTitle != arg) {
+ m_documentTitle = arg;
+ emit documentTitleChanged();
+ }
+}
+
+void DocumentHandler::setText(const QString &arg)
+{
+ if (m_text != arg) {
+ m_text = arg;
+ emit textChanged();
+ }
+}
+
+void DocumentHandler::saveAs(const QUrl &arg, const QString &fileType)
+{
+ bool isHtml = fileType.contains(QLatin1String("htm"));
+ QLatin1String ext(isHtml ? ".html" : ".txt");
+ QString localPath = arg.toLocalFile();
+ if (!localPath.endsWith(ext))
+ localPath += ext;
+ QFile f(localPath);
+ if (!f.open(QFile::WriteOnly | QFile::Truncate | (isHtml ? QFile::NotOpen : QFile::Text))) {
+ emit error(tr("Cannot save: ") + f.errorString());
+ return;
+ }
+ f.write((isHtml ? m_doc->toHtml() : m_doc->toPlainText()).toLocal8Bit());
+ f.close();
+ setFileUrl(QUrl::fromLocalFile(localPath));
+}
+
+QUrl DocumentHandler::fileUrl() const
+{
+ return m_fileUrl;
+}
+
+QString DocumentHandler::text() const
+{
+ return m_text;
+}
+
+void DocumentHandler::setCursorPosition(int position)
+{
+ if (position == m_cursorPosition)
+ return;
+
+ m_cursorPosition = position;
+
+ reset();
+}
+
+void DocumentHandler::reset()
+{
+ emit fontFamilyChanged();
+ emit alignmentChanged();
+ emit boldChanged();
+ emit italicChanged();
+ emit underlineChanged();
+ emit fontSizeChanged();
+ emit textColorChanged();
+}
+
+QTextCursor DocumentHandler::textCursor() const
+{
+ QTextCursor cursor = QTextCursor(m_doc);
+ if (m_selectionStart != m_selectionEnd) {
+ cursor.setPosition(m_selectionStart);
+ cursor.setPosition(m_selectionEnd, QTextCursor::KeepAnchor);
+ } else {
+ cursor.setPosition(m_cursorPosition);
+ }
+ return cursor;
+}
+
+void DocumentHandler::mergeFormatOnWordOrSelection(const QTextCharFormat &format)
+{
+ QTextCursor cursor = textCursor();
+ if (!cursor.hasSelection())
+ cursor.select(QTextCursor::WordUnderCursor);
+ cursor.mergeCharFormat(format);
+}
+
+void DocumentHandler::setSelectionStart(int position)
+{
+ m_selectionStart = position;
+}
+
+void DocumentHandler::setSelectionEnd(int position)
+{
+ m_selectionEnd = position;
+}
+
+void DocumentHandler::setAlignment(Qt::Alignment a)
+{
+ QTextBlockFormat fmt;
+ fmt.setAlignment((Qt::Alignment) a);
+ QTextCursor cursor = QTextCursor(m_doc);
+ cursor.setPosition(m_selectionStart, QTextCursor::MoveAnchor);
+ cursor.setPosition(m_selectionEnd, QTextCursor::KeepAnchor);
+ cursor.mergeBlockFormat(fmt);
+ emit alignmentChanged();
+}
+
+Qt::Alignment DocumentHandler::alignment() const
+{
+ QTextCursor cursor = textCursor();
+ if (cursor.isNull())
+ return Qt::AlignLeft;
+ return textCursor().blockFormat().alignment();
+}
+
+bool DocumentHandler::bold() const
+{
+ QTextCursor cursor = textCursor();
+ if (cursor.isNull())
+ return false;
+ return textCursor().charFormat().fontWeight() == QFont::Bold;
+}
+
+bool DocumentHandler::italic() const
+{
+ QTextCursor cursor = textCursor();
+ if (cursor.isNull())
+ return false;
+ return textCursor().charFormat().fontItalic();
+}
+
+bool DocumentHandler::underline() const
+{
+ QTextCursor cursor = textCursor();
+ if (cursor.isNull())
+ return false;
+ return textCursor().charFormat().fontUnderline();
+}
+
+void DocumentHandler::setBold(bool arg)
+{
+ QTextCharFormat fmt;
+ fmt.setFontWeight(arg ? QFont::Bold : QFont::Normal);
+ mergeFormatOnWordOrSelection(fmt);
+ emit boldChanged();
+}
+
+void DocumentHandler::setItalic(bool arg)
+{
+ QTextCharFormat fmt;
+ fmt.setFontItalic(arg);
+ mergeFormatOnWordOrSelection(fmt);
+ emit italicChanged();
+}
+
+void DocumentHandler::setUnderline(bool arg)
+{
+ QTextCharFormat fmt;
+ fmt.setFontUnderline(arg);
+ mergeFormatOnWordOrSelection(fmt);
+ 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 arg)
+{
+ QTextCursor cursor = textCursor();
+ if (cursor.isNull())
+ return;
+ QTextCharFormat format;
+ format.setFontPointSize(arg);
+ mergeFormatOnWordOrSelection(format);
+ emit fontSizeChanged();
+}
+
+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 &c)
+{
+ QTextCursor cursor = textCursor();
+ if (cursor.isNull())
+ return;
+ QTextCharFormat format;
+ format.setForeground(QBrush(c));
+ mergeFormatOnWordOrSelection(format);
+ emit textColorChanged();
+}
+
+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 &arg)
+{
+ QTextCursor cursor = textCursor();
+ if (cursor.isNull())
+ return;
+ QTextCharFormat format;
+ format.setFontFamily(arg);
+ mergeFormatOnWordOrSelection(format);
+ emit fontFamilyChanged();
+}
+
+QStringList DocumentHandler::defaultFontSizes() const
+{
+ // uhm... this is quite ugly
+ QStringList sizes;
+ QFontDatabase db;
+ foreach (int size, db.standardSizes())
+ sizes.append(QString::number(size));
+ return sizes;
+}