/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbInput module of the UI Extensions for Mobile.

**

** 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.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

#include <QPixmap>

#include <QBitmap>

#include <QPainter>

#include <QGraphicsItemAnimation>

#include <QGraphicsSceneMouseEvent>

#include <QGraphicsProxyWidget>

#include <QTimeLine>

#include <QGraphicsScene>

#include <QGraphicsGridLayout>

#include <QGraphicsLinearLayout>

#include <hbapplication.h>

#include <hbmainwindow.h>

#include <hbaction.h>

#include <hbview.h>

#include <hbwidget.h>

#include <hbdialog.h>

#include <hbeffect.h>

#include <hbframedrawer.h>

#include <hbevent.h>

#include <hbdataform.h>

#include <hbinputregioncollector_p.h>

#include <hbinputmethod.h>

#include <hbinputsettingproxy.h>

#include <hbinpututils.h>

#include <hbinputdef.h>

#include <hbinputvkbhost.h>

#include <hbinputvkbhostbridge.h>

#include <hbinputsettingwidget.h>

#include <hbinputcommondialogs.h>

#include <hbinputkeymap.h>

#include <hbinputkeymapfactory.h>

#include <hbwidgetfeedback.h>

#include <hbinputpredictionfactory.h>

#include <hbinputbuttongroup.h>

#include <hbinputbutton.h>

#include <HbSwipeGesture>

#include <HbTapGesture>

#include <HbSelectionDialog>

#include <HbListWidgetItem>

#include "hbinputvirtualrocker.h"

#include "hbinputsettinglist.h"

#include "hbinputmodeindicator.h"

#include <hbfeedbackmanager.h>

#include "hbinputsmileypicker.h"

#include "hbinputscreenshotwidget.h"

#define HB_DIGIT_LATIN_START_VALUE          0x0030

#define HB_DIGIT_ARABIC_INDIC_START_VALUE   0x0660

#define HB_DIGIT_EASTERN_ARABIC_START_VALUE 0x06F0

#define HB_DIGIT_DEVANAGARI_START_VALUE     0x0966

const qreal HbRockerWidth = 50.0;

/*!

@proto

@hbinput

\class HbInputVkbWidget

\brief A base class for touch keypads.

This class implements default mechanisms for opening and closing touch keypads.

It know how to operate in landscape and in portait modes and it know how

implement split view -mechasnism for S60 QT UI's Hb library. It also implements

closing mechansim, where used is able to close the touch keypad by sliding it downwards

with a finger. This class also implements background drawing for touch keypads.

*/

/// @cond

{

    }

    return 0;

}

HbInputVkbWidgetPrivate::HbInputVkbWidgetPrivate()

{

    mScreenshotTimeLine.setUpdateInterval(16);

}

HbInputVkbWidgetPrivate::~HbInputVkbWidgetPrivate()

{

    delete mSettingList;

    delete mBackgroundDrawer;

    delete mIconDrawer;

    delete mSmileyPicker;

    delete mImSelectionDialog;

}

void HbInputVkbWidgetPrivate::initLayout()

{

    Q_Q(HbInputVkbWidget);

    mLayout = new QGraphicsLinearLayout(Qt::Vertical);

    mLayout->setContentsMargins(0.0, 0.0, 0.0, 0.0);

    mLayout->setSpacing(0.0);

    qreal unitValue = HbDeviceProfile::profile(q->mainWindow()).unitValue();

    mCloseHandleHeight = (int)(HbCloseHandleHeightInUnits * unitValue);

    mCloseHandleWidth = (int)(HbCloseHandleWidthInUnits * unitValue);

    mCloseHandle = new QGraphicsWidget();

    mCloseHandle->setObjectName("vkbHandle");

    mCloseHandle->setMinimumHeight(mCloseHandleHeight);

    mCloseHandle->setMaximumHeight(mCloseHandleHeight);

    mLayout->addItem(mCloseHandle);

    q->setContentItem(new HbInputButtonGroup());

    q->setLayout(mLayout);

}

void HbInputVkbWidgetPrivate::init()

{

    Q_Q(HbInputVkbWidget);

    mRocker->setObjectName("VirtualRocker");

    QSizeF rockerSize(HbRockerWidth, HbRockerWidth);

    mRocker->resize(rockerSize);

    mRocker->setMinimumSize(HbRockerWidth, HbRockerWidth);

    QObject::connect(mRocker, SIGNAL(rockerDirection(int, HbInputVirtualRocker::RockerSelectionMode)),

    mRocker->setVisible(false);

    mBackgroundDrawer = new HbFrameDrawer();

    mBackgroundDrawer->setFrameGraphicsName(backgroundGraphics);

    mBackgroundDrawer->setFrameType(HbFrameDrawer::ThreePiecesVertical);

    mBackgroundDrawer->setFillWholeRect(true);

    mBackgroundDrawer->setBorderWidths(0.0, mCloseHandleHeight, 0.0, mCloseHandleHeight);

    mIconDrawer = new HbFrameDrawer();

    mIconDrawer->setFrameType(HbFrameDrawer::OnePiece);

    mIconDrawer->setFrameGraphicsName(HbInputVkbHandleIcon);

    mReleaseMapper = new QSignalMapper(q);

    mPressMapper = new QSignalMapper(q);

    mActionMapper = new QSignalMapper(q);

    q->grabGesture(Qt::SwipeGesture);

    // eating gestures below the panel (remove when panel starts to do this)

    q->grabGesture(Qt::TapGesture);

    q->grabGesture(Qt::PanGesture);

    HbInputRegionCollector::instance()->attach(q);

}

// re-implemented by inherited keyboards

int HbInputVkbWidgetPrivate::keyCode(int buttonId)

{

    Q_UNUSED(buttonId);

    return -1;

}

// re-implemented by inherited keyboards

int HbInputVkbWidgetPrivate::keyCode(HbTouchKeypadButton *button)

{

    Q_UNUSED(button);

    return -1;

}

void HbInputVkbWidgetPrivate::handleStandardButtonPress(int buttonid)

{

    int keycode = buttonid;

    if (buttonid >= 0) {

        keycode = keyCode(buttonid);

    }

    QKeyEvent event(QEvent::KeyPress, keycode, Qt::NoModifier);

    if (mOwner) {

        mOwner->filterEvent(&event);

    }

}

void HbInputVkbWidgetPrivate::handleStandardButtonRelease(int buttonid)

{

    int keycode = buttonid;

    if (buttonid >= 0) {

        keycode = keyCode(buttonid);

    }

    QKeyEvent event(QEvent::KeyRelease, keycode, Qt::NoModifier);

    if (mOwner) {

        mOwner->filterEvent(&event);

    }

}

{

    Q_UNUSED(button);

    Q_UNUSED(index);

}

void HbInputVkbWidgetPrivate::redirectMousePressEvent(QGraphicsSceneMouseEvent *aEvent)

{

    q_ptr->mousePressEvent(aEvent);

}

void HbInputVkbWidgetPrivate::redirectMouseReleaseEvent(QGraphicsSceneMouseEvent *aEvent)

{

    q_ptr->mouseReleaseEvent(aEvent);

}

void HbInputVkbWidgetPrivate::applyEditorConstraints()

{

    // no default implementaiton as of now.

}

void HbInputVkbWidgetPrivate::updateKeyCodes()

{

    Q_Q(HbInputVkbWidget);

    if (buttonGroup) {

        int key = 0;

        for (int i = 0; i < buttons.count(); ++i) {

            if (keyCode(i) == HbInputButton::ButtonKeyCodeCharacter) {

                HbInputButton *item = buttons.at(i);

                const HbKeyboardMap *keyboardMap = mKeymap->keyboard(q->keyboardType());

                if (keyboardMap && key < keyboardMap->keys.count()) {

                    item->setKeyCode(keyboardMap->keys.at(key)->keycode.unicode());

                } else {

                    item->setKeyCode(-1);

                }

                ++key;

            }

        }

    }

}

void HbInputVkbWidgetPrivate::updateButtons()

{

    Q_Q(HbInputVkbWidget);

    if (buttonGroup) {

        int key = 0;

        for (int i = 0; i < buttons.count(); ++i) {

            if (keyCode(i) == HbInputButton::ButtonKeyCodeCharacter) {

                HbInputButton *item = buttons.at(i);

                const HbKeyboardMap *keyboardMap = mKeymap->keyboard(q->keyboardType());

                    QString keydata = keyboardMap->keys.at(key)->characters(mModifiers);

                    item->setText(keydata.at(0), HbInputButton::ButtonTextIndexPrimary);

                    QString mappedCharacters;

                    keydata.append(keyboardMap->keys.at(key)->characters(mModifiers | HbModifierFnPressed));

                    for (int i = 0; i < keydata.length(); ++i) {

                        if (mOwner->focusObject() &&

                            mOwner->focusObject()->characterAllowedInEditor(keydata.at(i))) {

                            mappedCharacters.append(keydata.at(i));

                        }

                    }

                    item->setMappedCharacters(mappedCharacters);

                } else {

                    item->setText("", HbInputButton::ButtonTextIndexPrimary);

                    item->setMappedCharacters("");

                }

                ++key;

            }

        }

        buttonGroup->setButtons(buttons);

    }

}

void HbInputVkbWidgetPrivate::settingListPosition(QPointF &position, HbPopup::Placement &placement)

{

    Q_Q(HbInputVkbWidget);

    if (buttonGroup) {

        HbInputButton *item = buttonGroup->button(HbInputButton::ButtonKeyCodeSettings);

        if (item) {

            position.setX(buttonGroup->scenePos().x() + item->boundingRect().x() + item->boundingRect().width());

            position.setY(buttonGroup->scenePos().y() + item->boundingRect().y());

            placement = HbPopup::BottomRightCorner;

        }

    }

}

void HbInputVkbWidgetPrivate::setRockerPosition()

{

    Q_Q(HbInputVkbWidget);

}

void HbInputVkbWidgetPrivate::captureScreenshot()

{

    Q_Q(HbInputVkbWidget);

    if (!mScreenshotWidget) {

        mScreenshotWidget = new HbInputScreenshotWidget();

        mScreenshotWidget->setZValue(q->zValue());

        mScreenshotWidget->setGeometry(q->geometry());

        q->mainWindow()->scene()->addItem(mScreenshotWidget);

    }

    QPointF position = q->pos();

    QTransform rotateTrans;

    rotateTrans = q->mainWindow()->viewportTransform();

    QRectF transRect = rotateTrans.mapRect(rect);

    QPixmap pixmap;

    pixmap = QPixmap::grabWidget(q->mainWindow(), (int)transRect.x(), (int)transRect.y(), (int)transRect.width(), (int)transRect.height());

    pixmap = pixmap.transformed(rotateTrans.inverted());

    mScreenshotWidget->setScreenshot(pixmap);

}

void HbInputVkbWidgetPrivate::updateMouseHitItem(HbTouchKeypadButton *button, QPointF position)

{

    mMostRecentlyAccessedButton = button;

    mMostRecentlyClickedLocation = position;

}

void HbInputVkbWidgetPrivate::normalizeProbabilities(QList<HbKeyPressProbability> &allProbableKeys)

{

    qreal sum = 0.0;

        sum += key.probability;

    }

        allProbableKeys[count].probability = allProbableKeys[count].probability / sum;

    }

}

bool HbInputVkbWidgetPrivate::isKeyboardDimmed()

{

    return mKeyboardDimmed;

}

bool HbInputVkbWidgetPrivate::isSmileysEnabled()

{

    bool ret = false;

    if (!mOwner || !mOwner->focusObject()) {

        return ret;

    }

    if (mOwner->focusObject()->editorInterface().editor()->inherits("HbAbstractEdit")) {

        if (!mOwner->focusObject()->editorInterface().smileyTheme().isNull()) {

            ret = true;

        }

    }

    return ret;

}