/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#include <HbView>

#include <HbMainWindow>

#include <HbApplication>

#include <HbAction>

#include <HbMenu>

#include <HbTextEdit>

#include <hbpushbutton.h>

#include <QGraphicsLinearLayout>

#include <QFile>

#include <QFileInfo>

#include <QTextStream>

#include <QByteArray>

#include <QByteRef>

#include "editorview.h"

EditorView::EditorView(HbMainWindow &mainWindow)

    : mMainWindow(mainWindow),

    mTextEdit(0),

    mFileHex(false),

    mFlagReadOnly(),

    mFileName(),

    mFileContent(),

    mToTextAction(0),

    mToHexAction(0),

    mExitAction(0)

{

    // Override back navigation action

    HbAction *backNaviAction = new HbAction(Hb::BackNaviAction, this);

    connect(backNaviAction, SIGNAL(triggered()), this, SLOT(backButtonClicked()));

    setNavigationAction(backNaviAction);

    createMenu();

    // text editor

//    mTextEdit = new QTextEdit();

//    QGraphicsLinearLayout *editorLayout = new QGraphicsLinearLayout(Qt::Vertical);

//    QGraphicsProxyWidget *editorWidget = new QGraphicsProxyWidget();

//    editorWidget->setWidget(mTextEdit);

//    editorLayout->addItem(editorWidget);

//    setLayout(editorLayout);

    mTextEdit = new HbTextEdit();

    mTextEdit->setAlignment(Qt::AlignTop);

    QGraphicsLinearLayout *editorLayout = new QGraphicsLinearLayout(Qt::Vertical, this);

    editorLayout->addItem(mTextEdit);

    setLayout(editorLayout);

}

EditorView::~EditorView() 

{

//    delete mTextEdit;

//    delete mToTextAction;

//    delete mToHexAction;

//    delete mExitAction;

}

void EditorView::open(const QString& fileName, bool flagReadOnly)

{

    mFlagReadOnly = flagReadOnly;

    if (!fileName.isEmpty()) {

        mTextEdit->setReadOnly(mFlagReadOnly);

        loadFile(fileName);

    }

    else {

        // not valid file name

    }

}

void EditorView::loadFile(const QString &fileName)

{

    mFileName = fileName;

    QFile file(fileName);

    QFileInfo baseName(fileName);

    setTitle(baseName.fileName());

    if (!file.open(QFile::ReadOnly | QFile::Text)) {

        // note: cannot be opened. readonly or not text

        return;

    }

    QTextStream in(&file);

    in.setAutoDetectUnicode(false);

    mFileContent = in.readAll();

    file.close();

    displayInText();

}

void EditorView::displayInText()

{

    mFileHex = false;

    QByteArray asciiContent = mFileContent.toAscii();

    mTextEdit->setPlainText(QString(asciiContent));

}

void EditorView::displayInHex()

{

    QByteArray asciiContent = mFileContent.toAscii().toHex();

    QString textInHex = QString(asciiContent);

    mTextEdit->setPlainText(textInHex);

    mFileHex = true;

}

void EditorView::createMenu()

{

    mToTextAction = menu()->addAction("View as text");

    connect(mToTextAction, SIGNAL(triggered()), this, SLOT(displayInText()));

    mToHexAction = menu()->addAction("View as hex");

    connect(mToHexAction, SIGNAL(triggered()), this, SLOT(displayInHex()));

//    mExitAction = menu()->addAction("Exit");

//    connect(mExitAction, SIGNAL(triggered()), this, SLOT(backButtonClicked()));

    // update the menus before showing it:

    connect(menu(), SIGNAL(aboutToShow()), this, SLOT(updateMenu()));

}

void EditorView::updateMenu()

{

    mToTextAction->setVisible(mFileHex);

    mToHexAction->setVisible(!mFileHex);

}	

void EditorView::backButtonClicked()

{

    emit finished(false);

}