1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
// Copyright (C) 2008 Lukas Lalinsky
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#include <QMimeData>
#include <QDomProcessingInstruction>
#include <QDebug>
#include "diagramdocument.h"
#include "diagramitem.h"
#include "diagramitemfactory.h"
#include "domutils.h"
DiagramItem::DiagramItem(DiagramItem *parent)
: QGraphicsItem(parent)
{
}
DiagramDocument *
DiagramItem::document() const
{
return qobject_cast<DiagramDocument *>(scene());
}
void
DiagramItem::loadFromXml(QDomElement element, DiagramDocument *)
{
setId(element.attribute("id", QUuid()));
setPos(readPointElement(element, "position"));
}
void
DiagramItem::saveToXml(QDomDocument doc, QDomElement element)
{
element.setAttribute("type", typeName());
element.setAttribute("id", id());
appendPointElement(doc, element, "position", pos());
}
QMimeData *
DiagramItem::toMimeData()
{
QDomDocument doc;
QDomProcessingInstruction xml = doc.createProcessingInstruction("xml", "version=\"1.0\" encoding=\"UTF-8\"");
doc.appendChild(xml);
QDomElement element = doc.createElement("item");
doc.appendChild(element);
saveToXml(doc, element);
QByteArray data;
QTextStream stream(&data);
doc.save(stream, 0);
QMimeData *mimeData = new QMimeData();
mimeData->setData("application/dbmodel.item", data);
return mimeData;
}
DiagramItem *
DiagramItem::fromMimeData(const QMimeData *mimeData)
{
QByteArray data = mimeData->data("application/dbmodel.item");
if (data.isNull())
return 0;
QDomDocument doc;
doc.setContent(data);
QDomElement element = doc.firstChildElement("item");
if (element.isNull())
return 0;
DiagramItem *item = DiagramItemFactory::create(element.attribute("type"));
if (item == NULL)
return 0;
item->loadFromXml(element);
item->createId();
return item;
}
DiagramItemProperties *
DiagramItem::createPropertiesEditor(QWidget *parent)
{
return NULL;
}
|
