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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
// *************************************************************************************************
//
// QPropertyEditor v 0.1
//
// --------------------------------------
// Copyright (C) 2007 Volker Wiendl
//
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
// *************************************************************************************************
#include "QPropertyModel.h"
#include "Property.h"
#include <Qt/qapplication.h>
#include <Qt/qmetaobject.h>
#include <Qt/qitemeditorfactory.h>
struct PropertyPair {
PropertyPair(const QMetaObject* obj, QMetaProperty property) : Property(property), Object(obj) {}
QMetaProperty Property;
const QMetaObject* Object;
bool operator==(const PropertyPair& other) const {
return QString(other.Property.name()) == QString(Property.name());
}
};
QPropertyModel::QPropertyModel(QObject* parent /*= 0*/) : QAbstractItemModel(parent), m_userCallback(0) {
m_rootItem = new Property("Root",0, this);
}
QPropertyModel::~QPropertyModel() {}
QModelIndex QPropertyModel::index ( int row, int column, const QModelIndex & parent /*= QModelIndex()*/ ) const {
Property *parentItem = m_rootItem;
if (parent.isValid())
parentItem = static_cast<Property*>(parent.internalPointer());
if (row >= parentItem->children().size())
return QModelIndex();
return createIndex(row, column, parentItem->children().at(row));
}
QModelIndex QPropertyModel::parent ( const QModelIndex & index ) const {
if (!index.isValid())
return QModelIndex();
Property *childItem = static_cast<Property*>(index.internalPointer());
Property *parentItem = qobject_cast<Property*>(childItem->parent());
if (!parentItem || parentItem == m_rootItem)
return QModelIndex();
return createIndex(parentItem->row(), 0, parentItem);
}
int QPropertyModel::rowCount ( const QModelIndex & parent /*= QModelIndex()*/ ) const {
Property *parentItem = m_rootItem;
if (parent.isValid())
parentItem = static_cast<Property*>(parent.internalPointer());
return parentItem->children().size();
}
int QPropertyModel::columnCount ( const QModelIndex & parent /*= QModelIndex()*/ ) const {
(void)parent;
return 2;
}
QVariant QPropertyModel::data ( const QModelIndex & index, int role /*= Qt::DisplayRole*/ ) const {
if (!index.isValid())
return QVariant();
Property *item = static_cast<Property*>(index.internalPointer());
switch (role) {
case Qt::ToolTipRole:
case Qt::DecorationRole:
case Qt::DisplayRole:
case Qt::EditRole:
if (index.column() == 0)
return item->objectName();
if (index.column() == 1)
return item->value(role);
case Qt::BackgroundRole:
if (item->isRoot()) return QApplication::palette("QTreeView").brush(QPalette::Normal, QPalette::Button).color();
break;
};
return QVariant();
}
// edit methods
bool QPropertyModel::setData ( const QModelIndex & index, const QVariant & value, int role /*= Qt::EditRole*/ ) {
if (index.isValid() && role == Qt::EditRole) {
Property *item = static_cast<Property*>(index.internalPointer());
item->setValue(value);
emit dataChanged(index, index);
return true;
}
return false;
}
Qt::ItemFlags QPropertyModel::flags ( const QModelIndex & index ) const {
if (!index.isValid())
return Qt::ItemIsEnabled;
Property *item = static_cast<Property*>(index.internalPointer());
// only allow change of value attribute
if (item->isRoot())
return Qt::ItemIsEnabled;
else if (item->isReadOnly())
return Qt::ItemIsDragEnabled | Qt::ItemIsSelectable;
else
return Qt::ItemIsDragEnabled | Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsEditable;
}
QVariant QPropertyModel::headerData ( int section, Qt::Orientation orientation, int role /*= Qt::DisplayRole*/ ) const {
if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
switch (section) {
case 0:
return tr("Name");
case 1:
return tr("Value");
}
}
return QVariant();
}
QModelIndex QPropertyModel::buddy ( const QModelIndex & index ) const {
if (index.isValid() && index.column() == 0)
return createIndex(index.row(), 1, index.internalPointer());
return index;
}
void QPropertyModel::addItem(QObject *propertyObject) {
// first create property <-> class hierarchy
QList<PropertyPair> propertyMap;
QList<const QMetaObject*> classList;
const QMetaObject* metaObject = propertyObject->metaObject();
do {
int count = metaObject->propertyCount();
for (int i=0; i<count; ++i) {
QMetaProperty property = metaObject->property(i);
if (property.isUser()) // Hide Qt specific properties
{
PropertyPair pair(metaObject, property);
int index = propertyMap.indexOf(pair);
if (index != -1)
propertyMap[index] = pair;
else
propertyMap.push_back(pair);
}
}
classList.push_front(metaObject);
} while ((metaObject = metaObject->superClass())!=0);
QList<const QMetaObject*> finalClassList;
// remove empty classes from hierarchy list
foreach(const QMetaObject* obj, classList) {
bool keep = false;
foreach(PropertyPair pair, propertyMap) {
if (pair.Object == obj) {
keep = true;
break;
}
}
if (keep)
finalClassList.push_back(obj);
}
// finally insert properties for classes containing them
int i=rowCount();
beginInsertRows(QModelIndex(), i, i + finalClassList.count());
foreach(const QMetaObject* metaObject, finalClassList) {
// Set default name of the hierarchy property to the class name
QString name = metaObject->className();
// Check if there is a special name for the class
int index = metaObject->indexOfClassInfo(qPrintable(name));
if (index != -1)
name = metaObject->classInfo(index).value();
// Create Property Item for class node
Property* propertyItem = new Property(name, 0, m_rootItem);
foreach(PropertyPair pair, propertyMap) {
// Check if the property is associated with the current class from the finalClassList
if (pair.Object == metaObject) {
QMetaProperty property(pair.Property);
Property* p = 0;
if (property.type() == QVariant::UserType && m_userCallback)
p = m_userCallback(property.name(), propertyObject, propertyItem);
else
p = new Property(property.name(), propertyObject, propertyItem);
int index = metaObject->indexOfClassInfo(property.name());
if (index != -1)
p->setEditorHints(metaObject->classInfo(index).value());
}
}
}
endInsertRows();
}
void QPropertyModel::updateItem ( QObject* propertyObject, const QModelIndex& parent /*= QModelIndex() */ ) {
Property *parentItem = m_rootItem;
if (parent.isValid())
parentItem = static_cast<Property*>(parent.internalPointer());
if (parentItem->propertyObject() != propertyObject)
parentItem = parentItem->findPropertyObject(propertyObject);
if (parentItem) // Indicate view that the data for the indices have changed
dataChanged(createIndex(parentItem->row(), 0, static_cast<Property*>(parentItem)), createIndex(parentItem->row(), 1, static_cast<Property*>(parentItem)));
}
void QPropertyModel::clear() {
beginRemoveRows(QModelIndex(), 0, rowCount());
delete m_rootItem;
m_rootItem = new Property("Root",0, this);
endRemoveRows();
}
void QPropertyModel::setCustomPropertyCB(QPropertyEditorWidget::UserTypeCB callback) {
m_userCallback = callback;
}
|
