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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** 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.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#include "uicodecompletionsupport.h"
#include <QtCore/QProcess>
#include <QtCore/QFile>
#include <QtCore/QFileInfo>
enum { debug = 0 };
using namespace CppTools;
using namespace CPlusPlus;
UiCodeModelSupport::UiCodeModelSupport(CppModelManagerInterface *modelmanager,
const QString &source,
const QString &uiHeaderFile)
: AbstractEditorSupport(modelmanager),
m_sourceName(source),
m_fileName(uiHeaderFile),
m_updateIncludingFiles(false),
m_initialized(false)
{
if (debug)
qDebug()<<"ctor UiCodeModelSupport for"<<m_sourceName<<uiHeaderFile;
}
UiCodeModelSupport::~UiCodeModelSupport()
{
if (debug)
qDebug()<<"dtor ~UiCodeModelSupport for"<<m_sourceName;
}
void UiCodeModelSupport::init() const
{
m_initialized = true;
QDateTime sourceTime = QFileInfo(m_sourceName).lastModified();
QFileInfo uiHeaderFileInfo(m_fileName);
QDateTime uiHeaderTime = uiHeaderFileInfo.exists() ? uiHeaderFileInfo.lastModified() : QDateTime();
if (uiHeaderTime.isValid() && (uiHeaderTime > sourceTime)) {
QFile file(m_fileName);
if (file.open(QFile::ReadOnly | QFile::Text)) {
if (debug)
qDebug()<<"ui*h file is more recent then source file, using information from ui*h file"<<m_fileName;
QTextStream stream(&file);
m_contents = stream.readAll().toUtf8();
m_cacheTime = uiHeaderTime;
return;
}
}
if (debug)
qDebug()<<"ui*h file not found, or not recent enough, trying to create it on the fly";
QFile file(m_sourceName);
if (file.open(QFile::ReadOnly | QFile::Text)) {
QTextStream stream(&file);
const QString contents = stream.readAll();
if (runUic(contents)) {
if (debug)
qDebug()<<"created on the fly";
return;
} else {
// uic run was unsuccesfull
if (debug)
qDebug()<<"uic run wasn't succesfull";
m_cacheTime = QDateTime ();
m_contents = QByteArray();
// and if the header file wasn't there, next time we need to update
// all of the files that include this header
if (!uiHeaderFileInfo.exists())
m_updateIncludingFiles = true;
return;
}
} else {
if (debug)
qDebug()<<"Could open "<<m_sourceName<<"needed for the cpp model";
m_contents = QByteArray();
}
}
QByteArray UiCodeModelSupport::contents() const
{
if (!m_initialized)
init();
return m_contents;
}
QString UiCodeModelSupport::fileName() const
{
return m_fileName;
}
void UiCodeModelSupport::setFileName(const QString &name)
{
if (m_fileName == name && m_cacheTime.isValid())
return;
if (debug)
qDebug() << "UiCodeModelSupport::setFileName"<<name;
m_fileName = name;
m_contents.clear();
m_cacheTime = QDateTime();
init();
}
bool UiCodeModelSupport::runUic(const QString &ui) const
{
QProcess process;
const QString uic = uicCommand();
if (uic.isEmpty())
return false;
process.setEnvironment(environment());
if (debug)
qDebug() << "UiCodeModelSupport::runUic " << uic << " on " << ui.size() << " bytes";
process.start(uic, QStringList(), QIODevice::ReadWrite);
if (!process.waitForStarted())
return false;
process.write(ui.toUtf8());
if (!process.waitForBytesWritten(3000))
goto error;
process.closeWriteChannel();
if (!process.waitForFinished(3000) && process.exitStatus() != QProcess::NormalExit && process.exitCode() != 0)
goto error;
m_contents = process.readAllStandardOutput();
m_cacheTime = QDateTime::currentDateTime();
if (debug)
qDebug() << "ok" << m_contents.size() << "bytes.";
return true;
error:
if (debug)
qDebug() << "failed" << process.readAllStandardError();
process.kill();
return false;
}
void UiCodeModelSupport::updateFromEditor(const QString &formEditorContents)
{
if (runUic(formEditorContents)) {
updateDocument();
}
}
void UiCodeModelSupport::updateFromBuild()
{
if (debug)
qDebug()<<"UiCodeModelSupport::updateFromBuild() for file"<<m_sourceName;
// This is mostly a fall back for the cases when uic couldn't be run
// it pays special attention to the case where a ui_*h was newly created
QDateTime sourceTime = QFileInfo(m_sourceName).lastModified();
if (m_cacheTime.isValid() && m_cacheTime >= sourceTime) {
if (debug)
qDebug()<<"Cache is still more recent then source";
return;
} else {
QFileInfo fi(m_fileName);
QDateTime uiHeaderTime = fi.exists() ? fi.lastModified() : QDateTime();
if (uiHeaderTime.isValid() && (uiHeaderTime > sourceTime)) {
if (m_cacheTime >= uiHeaderTime)
return;
if (debug)
qDebug()<<"found ui*h updating from it";
QFile file(m_fileName);
if (file.open(QFile::ReadOnly | QFile::Text)) {
QTextStream stream(&file);
m_contents = stream.readAll().toUtf8();
m_cacheTime = uiHeaderTime;
updateDocument();
return;
}
}
if (debug)
qDebug()<<"ui*h not found or not more recent then source not changing anything";
}
}
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