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
237
238
239
240
241
242
243
244
|
#include "selectabledbobjmodel.h"
#include "dbtree/dbtreeitem.h"
#include "dbtree/dbtreemodel.h"
#include <QDebug>
#include <QTreeView>
SelectableDbObjModel::SelectableDbObjModel(QObject *parent) :
QSortFilterProxyModel(parent)
{
}
QVariant SelectableDbObjModel::data(const QModelIndex& index, int role) const
{
if (role != Qt::CheckStateRole)
return QSortFilterProxyModel::data(index, role);
return getStateFromChilds(index);
}
bool SelectableDbObjModel::setData(const QModelIndex& index, const QVariant& value, int role)
{
if (role != Qt::CheckStateRole)
return QSortFilterProxyModel::setData(index, value, role);
Qt::CheckState checked = static_cast<Qt::CheckState>(value.toInt());
setRecurrently(index, checked);
emit dataChanged(index, index, {Qt::CheckStateRole});
return true;
}
Qt::ItemFlags SelectableDbObjModel::flags(const QModelIndex& index) const
{
Qt::ItemFlags flags = QSortFilterProxyModel::flags(index);
DbTreeItem* item = getItemForProxyIndex(index);
switch (item->getType())
{
case DbTreeItem::Type::TABLE:
case DbTreeItem::Type::VIRTUAL_TABLE:
case DbTreeItem::Type::INDEX:
case DbTreeItem::Type::TRIGGER:
case DbTreeItem::Type::VIEW:
case DbTreeItem::Type::DB:
case DbTreeItem::Type::TABLES:
case DbTreeItem::Type::INDEXES:
case DbTreeItem::Type::TRIGGERS:
case DbTreeItem::Type::VIEWS:
{
flags |= Qt::ItemIsUserCheckable;
if (index.child(0, 0).isValid())
flags |= Qt::ItemIsTristate;
break;
}
case DbTreeItem::Type::DIR:
case DbTreeItem::Type::COLUMNS:
case DbTreeItem::Type::COLUMN:
case DbTreeItem::Type::ITEM_PROTOTYPE:
break;
}
return flags;
}
QString SelectableDbObjModel::getDbName() const
{
return dbName;
}
void SelectableDbObjModel::setDbName(const QString& value)
{
beginResetModel();
dbName = value;
checkedObjects.clear();
endResetModel();
}
QStringList SelectableDbObjModel::getCheckedObjects() const
{
return checkedObjects.toList();
}
void SelectableDbObjModel::setCheckedObjects(const QStringList& value)
{
checkedObjects = value.toSet();
}
void SelectableDbObjModel::setRootChecked(bool checked)
{
QModelIndex idx = index(0, 0);
if (!idx.isValid())
return;
setData(idx, checked ? Qt::Checked : Qt::Unchecked, Qt::CheckStateRole);
}
DbTreeItem* SelectableDbObjModel::getItemForIndex(const QModelIndex& index) const
{
return getItemForProxyIndex(index);
}
bool SelectableDbObjModel::filterAcceptsRow(int srcRow, const QModelIndex& srcParent) const
{
QModelIndex idx = sourceModel()->index(srcRow, 0, srcParent);
DbTreeItem* item = dynamic_cast<DbTreeItem*>(dynamic_cast<DbTreeModel*>(sourceModel())->itemFromIndex(idx));
DbTreeItem* dbItem = item->getPathToParentItem(DbTreeItem::Type::DB).last();
// These 3 conditions could be written as one OR-ed, but this is easier to debug which one fails this way.
if (!dbItem)
return false;
if (item->getType() == DbTreeItem::Type::DIR)
return checkRecurrentlyForDb(item);
if (!dbItem->getDb())
return false;
if (dbItem->getDb()->getName() != dbName)
return false;
switch (item->getType())
{
case DbTreeItem::Type::TABLE:
case DbTreeItem::Type::VIRTUAL_TABLE:
case DbTreeItem::Type::INDEX:
case DbTreeItem::Type::TRIGGER:
case DbTreeItem::Type::VIEW:
case DbTreeItem::Type::DB:
return true;
case DbTreeItem::Type::TABLES:
case DbTreeItem::Type::INDEXES:
case DbTreeItem::Type::TRIGGERS:
case DbTreeItem::Type::VIEWS:
return item->rowCount() > 0;
case DbTreeItem::Type::DIR:
case DbTreeItem::Type::COLUMNS:
case DbTreeItem::Type::COLUMN:
case DbTreeItem::Type::ITEM_PROTOTYPE:
return false;
}
return false;
}
DbTreeItem* SelectableDbObjModel::getItemForProxyIndex(const QModelIndex& index) const
{
QModelIndex srcIdx = mapToSource(index);
DbTreeItem* item = dynamic_cast<DbTreeItem*>(dynamic_cast<DbTreeModel*>(sourceModel())->itemFromIndex(srcIdx));
return item;
}
Qt::CheckState SelectableDbObjModel::getStateFromChilds(const QModelIndex& index) const
{
DbTreeItem* item = getItemForProxyIndex(index);
if (!item)
return Qt::Unchecked;
if (!index.child(0, 0).isValid())
{
if (isObject(item) && checkedObjects.contains(item->text()))
return Qt::Checked;
else
return Qt::Unchecked;
}
int total = 0;
int checked = 0;
int partial = 0;
Qt::CheckState state;
QModelIndex child;
for (int i = 0; (child = index.child(i, 0)).isValid(); i++)
{
if (!child.flags().testFlag(Qt::ItemIsUserCheckable))
continue;
total++;
state = static_cast<Qt::CheckState>(child.data(Qt::CheckStateRole).toInt());
if (state == Qt::Checked || state == Qt::PartiallyChecked)
{
checked++;
if (state == Qt::PartiallyChecked)
partial++;
}
}
if (total == checked)
{
if (partial > 0)
return Qt::PartiallyChecked;
else
return Qt::Checked;
}
if (checked == 0)
{
if (isObject(item) && checkedObjects.contains(item->text()))
return Qt::PartiallyChecked;
else
return Qt::Unchecked;
}
return Qt::PartiallyChecked;
}
void SelectableDbObjModel::setRecurrently(const QModelIndex& index, Qt::CheckState checked)
{
DbTreeItem* item = getItemForProxyIndex(index);
if (!item)
return;
if (checked && isObject(item))
checkedObjects << item->text();
else
checkedObjects.remove(item->text());
if (!index.child(0, 0).isValid())
return;
// Limiting checked to 'checked/unchecked', cause recurrent marking cannot set partially checked, it makes no sense
checked = (checked > 0 ? Qt::Checked : Qt::Unchecked);
QModelIndex child;
for (int i = 0; (child = index.child(i, 0)).isValid(); i++)
setData(child, checked, Qt::CheckStateRole);
}
bool SelectableDbObjModel::isObject(DbTreeItem* item) const
{
switch (item->getType())
{
case DbTreeItem::Type::TABLE:
case DbTreeItem::Type::INDEX:
case DbTreeItem::Type::TRIGGER:
case DbTreeItem::Type::VIEW:
case DbTreeItem::Type::VIRTUAL_TABLE:
return true;
default:
break;
}
return false;
}
bool SelectableDbObjModel::checkRecurrentlyForDb(DbTreeItem* item) const
{
return item->findItem(DbTreeItem::Type::DB, dbName) != nullptr;
}
|
