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diagramtextitem.cpp

/****************************************************************************
**
** Copyright (C) 2007-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
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** License version 2.0 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 GNU
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** or contact the sales department at sales@trolltech.com.
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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****************************************************************************/

#include <QtGui>

#include "diagramtextitem.h"
#include "diagramscene.h"

DiagramTextItem::DiagramTextItem(QGraphicsItem *parent, QGraphicsScene *scene)
    : QGraphicsTextItem(parent, scene)
{
    setFlag(QGraphicsItem::ItemIsMovable);
    setFlag(QGraphicsItem::ItemIsSelectable);
}

QVariant DiagramTextItem::itemChange(GraphicsItemChange change,
                     const QVariant &value)
{
    if (change == QGraphicsItem::ItemSelectedChange)
        emit selectedChange(this);
    return value;
}

void DiagramTextItem::focusOutEvent(QFocusEvent *event)
{
    setTextInteractionFlags(Qt::NoTextInteraction);
    emit lostFocus(this);
    QGraphicsTextItem::focusOutEvent(event);
}

void DiagramTextItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
    scene()->clearSelection();
    QGraphicsTextItem::mousePressEvent(event);
    setSelected(true);
}

void DiagramTextItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
    if (textInteractionFlags() & Qt::TextEditable) {
        QGraphicsTextItem::mouseMoveEvent(event);
    } else
        QGraphicsItem::mouseMoveEvent(event);
}

void DiagramTextItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
{
    setTextInteractionFlags(Qt::TextEditorInteraction);
    QGraphicsSceneMouseEvent *mouseEvent =
        new QGraphicsSceneMouseEvent(QEvent::GraphicsSceneMousePress);
    mouseEvent->setAccepted(true);
    mouseEvent->setPos(event->pos());
    mouseEvent->setScenePos(event->scenePos());
    mouseEvent->setScreenPos(event->screenPos());
    mouseEvent->setButtonDownPos(Qt::LeftButton,
        event->buttonDownPos(Qt::LeftButton));
    mouseEvent->setButtonDownScreenPos(Qt::LeftButton,
        event->buttonDownScreenPos(Qt::LeftButton));
    mouseEvent->setButtonDownScenePos(Qt::LeftButton,
        event->buttonDownScenePos(Qt::LeftButton));
    mouseEvent->setWidget(event->widget());

    QGraphicsTextItem::mousePressEvent(mouseEvent);

    delete mouseEvent;
}

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