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git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@1850 b45a01b8-16f6-495d-af2f-9b41ad6348cc
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148
plugins/qdiagram_plugin/diagramtextitem.cpp
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148
plugins/qdiagram_plugin/diagramtextitem.cpp
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/****************************************************************************
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**
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** Copyright (C) 2007-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of the example classes of the Qt Toolkit.
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**
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** This file may be used under the terms of the GNU General Public
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** License versions 2.0 or 3.0 as published by the Free Software
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** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Alternatively you may (at
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** your option) use any later version of the GNU General Public
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** License if such license has been publicly approved by Trolltech ASA
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** (or its successors, if any) and the KDE Free Qt Foundation. In
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** addition, as a special exception, Trolltech gives you certain
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** additional rights. These rights are described in the Trolltech GPL
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** Exception version 1.2, which can be found at
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** http://www.trolltech.com/products/qt/gplexception/ and in the file
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** GPL_EXCEPTION.txt in this package.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/. If
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** you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** In addition, as a special exception, Trolltech, as the sole
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** copyright holder for Qt Designer, grants users of the Qt/Eclipse
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** Integration plug-in the right for the Qt/Eclipse Integration to
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** link to functionality provided by Qt Designer and its related
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** libraries.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not expressly
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** granted herein.
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**
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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**
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****************************************************************************/
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#include <QtGui>
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#include "diagramtextitem.h"
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#include "diagramscene.h"
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#include <iostream>
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//! [0]
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DiagramTextItem::DiagramTextItem(QGraphicsItem *parent, QGraphicsScene *scene)
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: QGraphicsTextItem(parent, scene)
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{
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setFlag(QGraphicsItem::ItemIsMovable);
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setFlag(QGraphicsItem::ItemIsSelectable);
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QObject::connect(this->document(), SIGNAL(contentsChanged()),
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this, SLOT(textChanged()));
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}
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//! [0]
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DiagramTextItem::DiagramTextItem(const DiagramTextItem& textItem)
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{
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//QGraphicsTextItem();
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setFont(textItem.font());
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setDefaultTextColor(textItem.defaultTextColor());
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setHtml(textItem.toHtml());
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setTransform(textItem.transform());
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setFlag(QGraphicsItem::ItemIsMovable);
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setFlag(QGraphicsItem::ItemIsSelectable);
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m_adapt=false;
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}
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//! [1]
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QVariant DiagramTextItem::itemChange(GraphicsItemChange change,
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const QVariant &value)
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{
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if (change == QGraphicsItem::ItemSelectedHasChanged)
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emit selectedChange(this);
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if (change == QGraphicsItem::ItemPositionHasChanged)
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{
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if(!m_adapt) {
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qreal width=boundingRect().width();
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qreal height=boundingRect().height();
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mCenterPoint=mapToParent(mapFromParent(scenePos())+QPointF(width/2,height/2));
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m_adapt=true;
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prepareGeometryChange();
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return mapToParent(mapFromParent(mCenterPoint)+QPointF(-width/2,-height/2));
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}
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m_adapt=false;
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return value.toPointF();
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}
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return value;
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}
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//! [1]
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//! [2]
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void DiagramTextItem::focusOutEvent(QFocusEvent *event)
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{
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setTextInteractionFlags(Qt::NoTextInteraction);
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emit lostFocus(this);
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QGraphicsTextItem::focusOutEvent(event);
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}
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void DiagramTextItem::focusInEvent(QFocusEvent *event)
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{
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//emit receivedFocus(this);
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QGraphicsTextItem::focusInEvent(event);
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}
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//! [2]
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//! [5]
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void DiagramTextItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
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{
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if (textInteractionFlags() == Qt::NoTextInteraction)
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setTextInteractionFlags(Qt::TextEditorInteraction);
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emit receivedFocus(this);
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QGraphicsTextItem::mouseDoubleClickEvent(event);
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}
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//! [5]
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DiagramTextItem* DiagramTextItem::copy()
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{
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DiagramTextItem* newTextItem=new DiagramTextItem(*this);
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return newTextItem;
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}
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void DiagramTextItem::textChanged()
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{
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qreal width=boundingRect().width();
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qreal height=boundingRect().height();
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m_adapt=true;
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prepareGeometryChange();
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setPos(mapToParent(mapFromParent(mCenterPoint)+QPointF(-width/2,-height/2)));
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}
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void DiagramTextItem::setCenterPoint(const QPointF point)
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{
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mCenterPoint=point;
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textChanged();
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}
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void DiagramTextItem::activateEditor()
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{
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if (textInteractionFlags() == Qt::NoTextInteraction)
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setTextInteractionFlags(Qt::TextEditorInteraction);
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QGraphicsSceneMouseEvent *event=new QGraphicsSceneMouseEvent();
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event->setPos(QPointF(0,0));
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QGraphicsTextItem::mousePressEvent(event);
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delete event;
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}
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