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
|
/*
Q Light Controller Plus
listmodel.cpp
Copyright (c) Massimo Callegari
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0.txt
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "listmodel.h"
ListModel::ListModel(QObject *parent)
: QAbstractListModel(parent)
{
}
ListModel::~ListModel()
{
clear();
}
void ListModel::clear()
{
int itemsCount = m_data.count();
if (itemsCount == 0)
return;
beginRemoveRows(QModelIndex(), 0, itemsCount - 1);
for (int i = 0; i < itemsCount; i++)
m_data.takeLast();
m_data.clear();
endRemoveRows();
}
int ListModel::rowCount(const QModelIndex &parent) const
{
Q_UNUSED(parent)
return m_data.count();
}
QVariant ListModel::data(const QModelIndex &index, int role) const
{
int itemRow = index.row();
if (itemRow < 0 || itemRow >= m_data.count())
return QVariant();
if (role < Qt::UserRole + 1 || role > Qt::UserRole + 1 + m_roles.count())
return QVariant();
QString roleName = m_roles.at(role - Qt::UserRole - 1);
QVariantMap dataMap = m_data.at(itemRow).toMap();
return dataMap[roleName];
}
QVariant ListModel::data(const QModelIndex &index, QString role) const
{
int itemRow = index.row();
if (itemRow < 0 || itemRow >= m_data.count() || m_roles.contains(role) == false)
return QVariant();
QVariantMap dataMap = m_data.at(itemRow).toMap();
return dataMap[role];
}
QVariant ListModel::itemAt(int index) const
{
if (index < 0 || index >= m_data.count())
return QVariant();
return m_data.at(index);
}
bool ListModel::setData(const QModelIndex &index, const QVariant &value, int role)
{
int itemRow = index.row();
if (itemRow < 0 || itemRow >= m_data.count())
return false;
if (role < Qt::UserRole + 1 || role > Qt::UserRole + 1 + m_roles.count())
return false;
QString roleName = m_roles.at(role - Qt::UserRole - 1);
QVariantMap dataMap = m_data.at(itemRow).toMap();
dataMap[roleName] = value;
m_data[itemRow] = dataMap;
emit dataChanged(index, index, QVector<int>(1, role));
return true;
}
bool ListModel::setDataWithRole(const QModelIndex &index, QString roleName, const QVariant &value)
{
int itemRow = index.row();
if (itemRow < 0 || itemRow >= m_data.count() || m_roles.contains(roleName) == false)
return false;
QVariantMap dataMap = m_data.at(itemRow).toMap();
int role = Qt::UserRole + 1 + m_roles.indexOf(roleName);
dataMap[roleName] = value;
m_data[itemRow] = dataMap;
emit dataChanged(index, index, QVector<int>(1, role));
return true;
}
void ListModel::addDataMap(QVariantMap data)
{
int addIndex = m_data.count();
beginInsertRows(QModelIndex(), addIndex, addIndex);
m_data.append(data);
endInsertRows();
}
void ListModel::setDataMap(const QModelIndex &index, QVariantMap data)
{
int itemRow = index.row();
if (itemRow >= m_data.count())
return;
m_data[itemRow] = data;
emit dataChanged(index, index);
}
QHash<int, QByteArray> ListModel::roleNames() const
{
QHash<int, QByteArray> roles;
for (int i = 0; i < m_roles.count(); i++)
roles[Qt::UserRole + 1 + i] = m_roles.at(i).toLatin1();
return roles;
}
void ListModel::setRoleNames(QStringList names)
{
m_roles = names;
}
|
