/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
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** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
** Alternatively, 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
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** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
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****************************************************************************/

#include "qquicktextutil_p.h"

#include <QtQml/qqmlinfo.h>

#include <private/qqmlglobal_p.h>

QT_BEGIN_NAMESPACE

QQuickItem *QQuickTextUtil::createCursor(
        QQmlComponent *component, QQuickItem *parent, const QRectF &rectangle, const char *className)
{
    QQuickItem *item = 0;
    if (component->isReady()) {
        QQmlContext *creationContext = component->creationContext();

        if (QObject *object = component->beginCreate(creationContext
                ? creationContext
                : qmlContext(parent))) {
            if ((item = qobject_cast<QQuickItem *>(object))) {
                QQml_setParent_noEvent(item, parent);
                item->setParentItem(parent);
                item->setPosition(rectangle.topLeft());
                item->setHeight(rectangle.height());
            } else {
                qmlInfo(parent) << tr("%1 does not support loading non-visual cursor delegates.")
                        .arg(QString::fromUtf8(className));
            }
            component->completeCreate();
            return item;
        }
    } else if (component->isLoading()) {
        QObject::connect(component, SIGNAL(statusChanged(QQmlComponent::Status)),
                parent, SLOT(createCursor()), Qt::UniqueConnection);
        return item;
    }
    qmlInfo(parent, component->errors()) << tr("Could not load cursor delegate");
    return item;
}

qreal QQuickTextUtil::alignedX(const qreal textWidth, const qreal itemWidth, int alignment)
{
    qreal x = 0;
    switch (alignment) {
    case Qt::AlignLeft:
    case Qt::AlignJustify:
        break;
    case Qt::AlignRight:
        x = itemWidth - textWidth;
        break;
    case Qt::AlignHCenter:
        x = (itemWidth - textWidth) / 2;
        break;
    }
    return x;
}

qreal QQuickTextUtil::alignedY(const qreal textHeight, const qreal itemHeight, int alignment)
{
    qreal y = 0;
    switch (alignment) {
    case Qt::AlignTop:
        break;
    case Qt::AlignBottom:
        y = itemHeight - textHeight;
        break;
    case Qt::AlignVCenter:
        y = (itemHeight - textHeight) / 2;
        break;
    }
    return y;
}

QT_END_NAMESPACE