yamf/item/text.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by David Cuadrado                                  *
   3  *   krawek@gmail.com                                                     *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21 #include "text.h"
  22
  23 #include "serializer.h"
  24
  25 #include <QFont>
  26 #include <QFocusEvent>
  27 #include <QTimer>
  28 #include <QPainter>
  29 #include <QGraphicsSceneMouseEvent>
  30
  31 #include <dcore/debug.h>
  32
  33 namespace YAMF {
  34 namespace Item {
  35
  36 struct Text::Private {
  37         Private() : isEditable(false) {}
  38
  39         GraphicsItemFlags flags;
  40         bool isEditable;
  41 };
  42
  43 /**
  44  * @~spanish
  45  * Construye un texto con un ï¿½tem "padre" @p parent y dentro de la escena @p scene.
  46  */
  47 Text::Text(QGraphicsItem * parent, QGraphicsScene * scene)
  48         : QGraphicsTextItem(parent, scene), d(new Private)
  49 {
  50         d->flags = flags();
  51         setOpenExternalLinks(true);
  52         setEditable( false );
  53 }
  54
  55
  56 /**
  57  * Destructor
  58  */
  59 Text::~Text()
  60 {
  61         delete d;
  62 }
  63
  64 /**
  65  * @~spanish
  66  * Toma los valores dentro del documento xml @p xml y se las asigna a las propiedades del texto.
  67  */
  68 void Text::fromXml(const QString &xml)
  69 {
  70 }
  71
  72
  73 /**
  74  * @~spanish
  75  * Crea un elemento del documento xml @p doc con las propiedades actuales del texto.
  76  */
  77 QDomElement Text::toXml(QDomDocument &doc) const
  78 {
  79         QDomElement root = doc.createElement("text");
  80         root.setAttribute("width", textWidth() );
  81         root.setAttribute("text-color", defaultTextColor().name() );
  82
  83         root.setAttribute("data", toPlainText() );
  84
  85         root.appendChild( Serializer::properties( this, doc));
  86         QFont font = this->font();
  87         root.appendChild( Serializer::font( font, doc ) );
  88
  89         return root;
  90 }
  91
  92 /**
  93  * @~spanish
  94  * Si @p editable es verdadero permitira editar el texto, de lo contrario no.
  95  */
  96 void Text::setEditable(bool editable)
  97 {
  98         d->isEditable = editable;
  99
 100         if ( editable )
 101         {
 102                 d->flags = flags(); // save flags
 103                 setTextInteractionFlags(Qt::TextEditorInteraction);
 104                 setFlags( QGraphicsItem::ItemIsSelectable | QGraphicsItem::ItemIsFocusable );
 105                 setFocus(Qt::MouseFocusReason);
 106         }
 107         else
 108         {
 109                 setTextInteractionFlags(Qt::NoTextInteraction/*Qt::TextBrowserInteraction*/);
 110 //      setFlags(  QGraphicsItem::ItemIsSelectable | QGraphicsItem::ItemIsMovable ); // restore flags
 111         }
 112         update();
 113 }
 114
 115 void Text::paint( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget * widget)
 116 {
 117         if(toPlainText().isEmpty())
 118         {
 119                 painter->drawRect(boundingRect());
 120         }
 121         QGraphicsTextItem::paint(painter, option, widget);
 122 }
 123
 124 /**
 125  * @~spanish
 126  * Si el item es editable lo cambia a no editable, y si es no editable lo cambia a editable.
 127  */
 128 void Text::toggleEditable()
 129 {
 130         setEditable( !d->isEditable );
 131 }
 132
 133 /**
 134  * @~spanish
 135  * Desactiva la edicion del texto cuando pierde el foco.
 136  */
 137 void Text::focusOutEvent(QFocusEvent * event )
 138 {
 139         QGraphicsTextItem::focusOutEvent(event);
 140         if ( textInteractionFlags() & Qt::TextEditorInteraction && d->isEditable )
 141         {
 142                 QTimer::singleShot( 0, this, SLOT(toggleEditable()));
 143                 emit edited();
 144         }
 145 }
 146
 147 /**
 148  * @~spanish
 149  * Activa la edicion del texto cuando el texto recibe un evento de doble click.
 150  */
 151 void Text::mouseDoubleClickEvent ( QGraphicsSceneMouseEvent * event )
 152 {
 153         setEditable( true );
 154 }
 155
 156 void Text::mousePressEvent ( QGraphicsSceneMouseEvent * event )
 157 {
 158         QGraphicsTextItem::mousePressEvent( event );
 159 //      event->setAccepted( false );
 160 //      dfDebug << event->isAccepted();
 161 //      event->ignore();
 162 }
 163
 164
 165
 166 }
 167 }