forked from qt-creator/qt-creator
Ui Code Model Support: Refactor code in preparation for cmake support
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dt
193
src/plugins/cpptools/uicodecompletionsupport.cpp
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193
src/plugins/cpptools/uicodecompletionsupport.cpp
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/**************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2010 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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** Commercial Usage
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**
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** If you are unsure which license is appropriate for your use, please
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** contact the sales department at http://qt.nokia.com/contact.
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**
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**************************************************************************/
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#include "uicodecompletionsupport.h"
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#include <QtCore/QProcess>
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enum { debug = 0 };
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using namespace CppTools;
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UiCodeModelSupport::UiCodeModelSupport(CppTools::CppModelManagerInterface *modelmanager,
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const QString &source,
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const QString &uiHeaderFile)
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: CppTools::AbstractEditorSupport(modelmanager),
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m_sourceName(source),
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m_fileName(uiHeaderFile),
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m_updateIncludingFiles(false)
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{
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if (debug)
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qDebug()<<"ctor UiCodeModelSupport for"<<m_sourceName<<uiHeaderFile;
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init();
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}
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UiCodeModelSupport::~UiCodeModelSupport()
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{
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if (debug)
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qDebug()<<"dtor ~UiCodeModelSupport for"<<m_sourceName;
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}
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void UiCodeModelSupport::init()
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{
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QDateTime sourceTime = QFileInfo(m_sourceName).lastModified();
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QFileInfo uiHeaderFileInfo(m_fileName);
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QDateTime uiHeaderTime = uiHeaderFileInfo.exists() ? uiHeaderFileInfo.lastModified() : QDateTime();
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if (uiHeaderTime.isValid() && (uiHeaderTime > sourceTime)) {
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QFile file(m_fileName);
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if (file.open(QFile::ReadOnly)) {
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if (debug)
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qDebug()<<"ui*h file is more recent then source file, using information from ui*h file"<<m_fileName;
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QTextStream stream(&file);
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m_contents = stream.readAll().toUtf8();
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m_cacheTime = uiHeaderTime;
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return;
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}
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}
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if (debug)
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qDebug()<<"ui*h file not found, or not recent enough, trying to create it on the fly";
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QFile file(m_sourceName);
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if (file.open(QFile::ReadOnly)) {
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QTextStream stream(&file);
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const QString contents = stream.readAll();
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if (runUic(contents)) {
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if (debug)
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qDebug()<<"created on the fly";
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return;
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} else {
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// uic run was unsuccesfull
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if (debug)
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qDebug()<<"uic run wasn't succesfull";
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m_cacheTime = QDateTime();
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m_contents = QByteArray();
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// and if the header file wasn't there, next time we need to update
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// all of the files that include this header
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if (!uiHeaderFileInfo.exists())
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m_updateIncludingFiles = true;
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return;
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}
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} else {
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if (debug)
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qDebug()<<"Could open "<<m_sourceName<<"needed for the cpp model";
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m_contents = QByteArray();
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}
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}
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QByteArray UiCodeModelSupport::contents() const
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{
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return m_contents;
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}
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QString UiCodeModelSupport::fileName() const
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{
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return m_fileName;
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}
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void UiCodeModelSupport::setFileName(const QString &name)
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{
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if (m_fileName == name && m_cacheTime.isValid())
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return;
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if (debug)
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qDebug() << "UiCodeModelSupport::setFileName"<<name;
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m_fileName = name;
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m_contents.clear();
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m_cacheTime = QDateTime();
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init();
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}
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bool UiCodeModelSupport::runUic(const QString &ui) const
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{
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QProcess process;
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const QString uic = uicCommand();
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process.setEnvironment(environment());
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if (debug)
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qDebug() << "UiCodeModelSupport::runUic " << uic << " on " << ui.size() << " bytes";
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process.start(uic, QStringList(), QIODevice::ReadWrite);
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if (!process.waitForStarted())
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return false;
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process.write(ui.toUtf8());
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process.closeWriteChannel();
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if (process.waitForFinished() && process.exitStatus() == QProcess::NormalExit && process.exitCode() == 0) {
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m_contents = process.readAllStandardOutput();
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m_cacheTime = QDateTime::currentDateTime();
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if (debug)
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qDebug() << "ok" << m_contents.size() << "bytes.";
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return true;
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} else {
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if (debug)
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qDebug() << "failed" << process.readAllStandardError();
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process.kill();
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}
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return false;
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}
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void UiCodeModelSupport::updateFromEditor(const QString &formEditorContents)
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{
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if (runUic(formEditorContents)) {
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updateDocument();
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}
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}
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void UiCodeModelSupport::updateFromBuild()
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{
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if (debug)
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qDebug()<<"UiCodeModelSupport::updateFromBuild() for file"<<m_sourceName;
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// This is mostly a fall back for the cases when uic couldn't be run
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// it pays special attention to the case where a ui_*h was newly created
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QDateTime sourceTime = QFileInfo(m_sourceName).lastModified();
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if (m_cacheTime.isValid() && m_cacheTime >= sourceTime) {
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if (debug)
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qDebug()<<"Cache is still more recent then source";
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return;
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} else {
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QFileInfo fi(m_fileName);
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QDateTime uiHeaderTime = fi.exists() ? fi.lastModified() : QDateTime();
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if (uiHeaderTime.isValid() && (uiHeaderTime > sourceTime)) {
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if (m_cacheTime >= uiHeaderTime)
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return;
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if (debug)
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qDebug()<<"found ui*h updating from it";
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QFile file(m_fileName);
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if (file.open(QFile::ReadOnly)) {
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QTextStream stream(&file);
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m_contents = stream.readAll().toUtf8();
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m_cacheTime = uiHeaderTime;
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updateDocument();
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return;
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}
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}
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if (debug)
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qDebug()<<"ui*h not found or not more recent then source not changing anything";
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}
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}
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