/*!

* Copyright (c) 2009 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: Input field

*

*/

#include <QGraphicsLinearLayout>

#include <hbinputeditorinterface.h>

#include <hbinputstandardfilters.h>

#include <hbdeviceprofile.h>

#include <hbmainwindow.h>

#include "dialpadinputfield.h"

#include "dialpadbutton.h"

static const QLatin1String HbBackspaceIcon("qtg_mono_backspace2");

static const int DialpadAutoRepeatInterval = 150; // ms

static const int DialpadAutoRepeatDelay = 1000; // ms

static const qreal DialpadComponentMargin = 0.75; // units

static const qreal DialpadBackspaceWidthV = 9.8; // units

static const qreal DialpadBackspaceWidthH = 8.6; // units

static const qreal DialpadInputFieldHeightV = 7.2; // units

static const qreal DialpadInputFieldHeightH = 6.6; // units

static const int DialpadMaxEditStringLenght = 100;

DialpadInputField::DialpadInputField(

    const HbMainWindow& mainWindow,

    QGraphicsItem* parent)

    : HbWidget(parent),

      mMainWindow(mainWindow)

{

    // create editor

    mNumberEditor->setObjectName(QLatin1String("numberEdit"));

    HbEditorInterface editorInterface(mNumberEditor);

    editorInterface.setFilter(HbPhoneNumberFilter::instance());

    editorInterface.setInputConstraints(HbEditorConstraintIgnoreFocus);

    mNumberEditor->setMaxLength(DialpadMaxEditStringLenght);

    mNumberEditor->setMinRows(1);

    mNumberEditor->setMaxRows(1);    

    mNumberEditor->setAdjustFontSizeToFitHeight(true);

    mNumberEditor->setFontSpec(HbFontSpec(HbFontSpec::Primary));

    // create backspace button

    mBackspace = new DialpadButton(this);

    mBackspace->setObjectName(QLatin1String("backspaceButton"));

    mBackspace->setButtonType(DialpadButton::FunctionButton); // for css

    mBackspace->setFocusPolicy(Qt::NoFocus);

    mBackspace->setFlag(QGraphicsItem::ItemIsFocusable,false);

    mBackspace->setIcon(HbIcon(HbBackspaceIcon));

    mBackspace->setEnabled(false);

    mBackspace->setAutoRepeat(true);

    mBackspace->setAutoRepeatInterval(DialpadAutoRepeatInterval);

    mBackspace->setAutoRepeatDelay(DialpadAutoRepeatDelay);

    mBackspace->setSizePolicy(QSizePolicy::Fixed,QSizePolicy::Expanding);

    connect(mNumberEditor,SIGNAL(contentsChanged()),

            SLOT(onEditorContentChanged()));

    // set input field layout

    QGraphicsLinearLayout* layout = new QGraphicsLinearLayout;

    layout->addItem(mNumberEditor);

    layout->setAlignment(mNumberEditor,Qt::AlignVCenter);

    layout->addItem(mBackspace);

    layout->setContentsMargins(0,0,0,0);

    setLayout(layout);

    updateLayout(mMainWindow.orientation());

}

DialpadInputField::~DialpadInputField()

{

}

HbLineEdit& DialpadInputField::editor() const

{

    return *mNumberEditor;

}

DialpadButton& DialpadInputField::backspaceButton() const

{

    return *mBackspace;

}

void DialpadInputField::updateLayout(Qt::Orientation orientation)

{

    Q_ASSERT(layout());

    qreal unit = HbDeviceProfile::profile(&mMainWindow).unitValue();

    QGraphicsLinearLayout* mainLayout =

        static_cast<QGraphicsLinearLayout*>(layout());

    mainLayout->setSpacing(DialpadComponentMargin* unit);

    if (orientation==Qt::Vertical) {

        mHeight = DialpadInputFieldHeightV * unit;

        mBackspace->setPreferredWidth(DialpadBackspaceWidthV * unit);

    } else {

        mHeight = DialpadInputFieldHeightH * unit;

        mBackspace->setPreferredWidth(DialpadBackspaceWidthH * unit);

    }

}

void DialpadInputField::onEditorContentChanged()

{

    mBackspace->setEnabled(mNumberEditor->text().length());

}

QSizeF DialpadInputField::sizeHint(

    Qt::SizeHint which,

    const QSizeF & constraint) const

{

    Q_UNUSED(which);

    Q_UNUSED(constraint);

    // input field height is fixed

    QSizeF sh;

    sh.setHeight(mHeight);

    return sh;

}