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141 lines
4.2 KiB
141 lines
4.2 KiB
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/****************************************************************************
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** Copyright (C) 2002-2004 Klarälvdalens Datakonsult AB. All rights reserved.
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**
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** This file is part of the KDGantt library.
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**
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file.
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**
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** Licensees holding valid commercial KDGantt licenses may use this file in
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** accordance with the KDGantt Commercial License Agreement provided with
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** the Software.
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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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** See http://www.klaralvdalens-datakonsult.se/Public/products/ for
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** information about KDGantt Commercial License Agreements.
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**
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** Contact info@klaralvdalens-datakonsult.se if any conditions of this
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** licensing are not clear to you.
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**
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** As a special exception, permission is given to link this program
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** with any edition of Qt, and distribute the resulting executable,
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** without including the source code for Qt in the source distribution.
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**
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**********************************************************************/
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#include <KDGanttViewItemDrag.h>
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#include <KDGanttViewItem.h>
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#include <qpixmap.h>
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#include <KDGanttView.h>
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/*!
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\class KDGanttViewItemDrag KDGanttViewItemDrag.h
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\brief Drag and drop of KD Gantt items.
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This class implements drag and drop of KD Gantt items within a Gantt
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chart. It is mainly used for internal purposes, but made a part of
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the public API nevertheless, as you may want to subclass it for some
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specialized functionality.
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*/
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/*!
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The constructor. Creates a KDGanttViewItemDrag object and
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initializes the drag data in the form of an XML document.
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\param item the item that is dragged
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\param source the source widget
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\param name the internal object name
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*/
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KDGanttViewItemDrag::KDGanttViewItemDrag( KDGanttViewItem* item , QWidget *source, const char * name ) : QStoredDrag("x-application/x-KDGanttViewItemDrag", source, name )
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{
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myItem = item;
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QPixmap pix;
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if (item->pixmap() )
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pix = *(item->pixmap()) ;
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else {
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KDGanttViewItem::Shape start, middle, end;
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item->shapes( start, middle, end );
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QColor st, mi, en;
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item->colors( st, mi, en );
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pix =item->myGanttView->getPixmap( start, st, item->myGanttView->lvBackgroundColor(), 11 );
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}
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setPixmap( pix , QPoint( -10,-10 ));
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QDomDocument doc( "GanttView" );
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QString docstart = "<GanttView/>";
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doc.setContent( docstart );
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QDomElement itemsElement = doc.createElement( "Items" );
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doc.documentElement().appendChild( itemsElement );
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item->createNode( doc, itemsElement );
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QDataStream s( array, IO_WriteOnly );
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s << doc.toString();
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}
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/*!
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Returns the encoded data of the drag object.
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\param c the format of the data
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\return the encoded data of the drag object
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*/
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QByteArray KDGanttViewItemDrag::encodedData( const char * c) const
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{
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QString s ( c );
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if ( s == "x-application/x-KDGanttViewItemDrag" ) {
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return array;
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}
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return QByteArray();
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}
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/*!
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Returns the dragged item
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\return the dragged item
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*/
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KDGanttViewItem* KDGanttViewItemDrag::getItem()
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{
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return myItem;
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}
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/*!
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Returns whether this drag object class can decode the data passed in \a e.
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\param e the mime source that has been dragged
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\return true if KDGanttViewItemDrag can decode the data in \a e.
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*/
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bool KDGanttViewItemDrag::canDecode ( const QMimeSource * e )
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{
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if ( QString( e->format() ) == "x-application/x-KDGanttViewItemDrag" )
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return true;
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return false;
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}
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/*!
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Decodes the data passed in \a e into an XML string that is written
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into \a string.
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\param e the data to decode
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\param string the resulting XML string
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\return true if the operation succeeded
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*/
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bool KDGanttViewItemDrag::decode ( const QMimeSource * e , QString & string)
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{
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QByteArray arr;
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arr = e->encodedData( "x-application/x-KDGanttViewItemDrag");
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QDataStream s( arr, IO_ReadOnly );
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s >> string;
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return true;
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}
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