formwindowfile.cpp 5.76 KB
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/**************************************************************************
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**
** This file is part of Qt Creator
**
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** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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**
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** GNU Lesser General Public License Usage
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**
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** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
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** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**************************************************************************/
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#include "formwindowfile.h"
#include "designerconstants.h"

#include <coreplugin/icore.h>
#include <utils/reloadpromptutils.h>
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#include <utils/fileutils.h>
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#include <utils/qtcassert.h>
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#include <QDesignerFormWindowInterface>
#include <QDesignerFormWindowManagerInterface>
#include <QDesignerFormEditorInterface>
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#if QT_VERSION < 0x050000
#    include "qt_private/qsimpleresource_p.h"
#endif
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#include <QMessageBox>
#include <QMainWindow>
#include <QUndoStack>
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#include <QFile>
#include <QFileInfo>
#include <QByteArray>
#include <QDebug>
#include <QTextCodec>
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namespace Designer {
namespace Internal {
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FormWindowFile::FormWindowFile(QDesignerFormWindowInterface *form, QObject *parent)
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  : Core::TextFile(parent),
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    m_mimeType(QLatin1String(Designer::Constants::FORM_MIMETYPE)),
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    m_shouldAutoSave(false),
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    m_formWindow(form)
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{
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    // Designer needs UTF-8 regardless of settings.
    setCodec(QTextCodec::codecForName("UTF-8"));
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    connect(m_formWindow->core()->formWindowManager(), SIGNAL(formWindowRemoved(QDesignerFormWindowInterface*)),
            this, SLOT(slotFormWindowRemoved(QDesignerFormWindowInterface*)));
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    connect(m_formWindow->commandHistory(), SIGNAL(indexChanged(int)),
            this, SLOT(setShouldAutoSave()));
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}

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bool FormWindowFile::save(QString *errorString, const QString &name, bool autoSave)
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{
    const QString actualName = name.isEmpty() ? fileName() : name;

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    if (Designer::Constants::Internal::debug)
        qDebug() << Q_FUNC_INFO << name << "->" << actualName;
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    QTC_ASSERT(m_formWindow, return false);

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    if (actualName.isEmpty())
        return false;

    const QFileInfo fi(actualName);
    const QString oldFormName = m_formWindow->fileName();
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    if (!autoSave)
        m_formWindow->setFileName(fi.absoluteFilePath());
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#if QT_VERSION >= 0x050000
    const bool writeOK = writeFile(actualName, errorString);
#else
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    const bool warningsEnabled = qdesigner_internal::QSimpleResource::setWarningsEnabled(false);
    const bool writeOK = writeFile(actualName, errorString);
    qdesigner_internal::QSimpleResource::setWarningsEnabled(warningsEnabled);
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#endif
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    m_shouldAutoSave = false;
    if (autoSave)
        return writeOK;

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    if (!writeOK) {
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        m_formWindow->setFileName(oldFormName);
        return false;
    }

    m_fileName = fi.absoluteFilePath();
    emit setDisplayName(fi.fileName());
    m_formWindow->setDirty(false);
    emit changed();
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    emit saved();
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    return true;
}

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void FormWindowFile::rename(const QString &newName)
{
    m_formWindow->setFileName(newName);
    QFileInfo fi(newName);
    m_fileName = fi.absoluteFilePath();
    emit setDisplayName(fi.fileName());
    emit changed();
}

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QString FormWindowFile::fileName() const
{
    return m_fileName;
}

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bool FormWindowFile::shouldAutoSave() const
{
    return m_shouldAutoSave;
}

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bool FormWindowFile::isModified() const
{
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    return m_formWindow && m_formWindow->isDirty();
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}

bool FormWindowFile::isSaveAsAllowed() const
{
    return true;
}

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bool FormWindowFile::reload(QString *errorString, ReloadFlag flag, ChangeType type)
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{
    if (flag == FlagIgnore)
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        return true;
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    if (type == TypePermissions) {
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        emit changed();
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    } else {
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        emit aboutToReload();
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        emit reload(errorString, m_fileName);
        if (!errorString->isEmpty())
            return false;
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        emit reloaded();
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    }
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    return true;
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}

QString FormWindowFile::defaultPath() const
{
    return QString();
}

void FormWindowFile::setSuggestedFileName(const QString &fileName)
{
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    if (Designer::Constants::Internal::debug)
        qDebug() << Q_FUNC_INFO << m_fileName << fileName;
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    m_suggestedName = fileName;
}

QString FormWindowFile::suggestedFileName() const
{
    return m_suggestedName;
}

QString FormWindowFile::mimeType() const
{
    return m_mimeType;
}

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bool FormWindowFile::writeFile(const QString &fileName, QString *errorString) const
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{
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    if (Designer::Constants::Internal::debug)
        qDebug() << Q_FUNC_INFO << m_fileName << fileName;
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    return write(fileName, format(), m_formWindow->contents(), errorString);
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}

void FormWindowFile::setFileName(const QString &fname)
{
    m_fileName = fname;
}
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QDesignerFormWindowInterface *FormWindowFile::formWindow() const
{
    return m_formWindow;
}

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void FormWindowFile::slotFormWindowRemoved(QDesignerFormWindowInterface *w)
{
    // Release formwindow as soon as the FormWindowManager removes
    // as calls to isDirty() are triggered at arbitrary times
    // while building.
    if (w == m_formWindow)
        m_formWindow = 0;
}

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} // namespace Internal
} // namespace Designer