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
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
|
/* Copyright 2013-2018 MultiMC Contributors
*
* 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
*
* 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 <QDir>
#include <QSet>
#include <QFile>
#include <QThread>
#include <QTextStream>
#include <QXmlStreamReader>
#include <QDebug>
#include "InstanceList.h"
#include "BaseInstance.h"
#include "FolderInstanceProvider.h"
#include "FileSystem.h"
InstanceList::InstanceList(QObject *parent)
: QAbstractListModel(parent)
{
resumeWatch();
}
InstanceList::~InstanceList()
{
}
int InstanceList::rowCount(const QModelIndex &parent) const
{
Q_UNUSED(parent);
return m_instances.count();
}
QModelIndex InstanceList::index(int row, int column, const QModelIndex &parent) const
{
Q_UNUSED(parent);
if (row < 0 || row >= m_instances.size())
return QModelIndex();
return createIndex(row, column, (void *)m_instances.at(row).get());
}
QVariant InstanceList::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
{
return QVariant();
}
BaseInstance *pdata = static_cast<BaseInstance *>(index.internalPointer());
switch (role)
{
case InstancePointerRole:
{
QVariant v = qVariantFromValue((void *)pdata);
return v;
}
case InstanceIDRole:
{
return pdata->id();
}
case Qt::DisplayRole:
{
return pdata->name();
}
case Qt::ToolTipRole:
{
return pdata->instanceRoot();
}
case Qt::DecorationRole:
{
return pdata->iconKey();
}
// HACK: see GroupView.h in gui!
case GroupRole:
{
return pdata->group();
}
default:
break;
}
return QVariant();
}
Qt::ItemFlags InstanceList::flags(const QModelIndex &index) const
{
Qt::ItemFlags f;
if (index.isValid())
{
f |= (Qt::ItemIsEnabled | Qt::ItemIsSelectable);
}
return f;
}
QStringList InstanceList::getGroups()
{
return m_groups.toList();
}
void InstanceList::deleteGroup(const QString& name)
{
for(auto & instance: m_instances)
{
auto instGroupName = instance->group();
if(instGroupName == name)
{
instance->setGroupPost(QString());
}
}
}
void InstanceList::deleteInstance(const InstanceId& id)
{
auto inst = getInstanceById(id);
if(!inst)
{
qDebug() << "Cannot delete instance" << id << " No such instance is present.";
return;
}
qDebug() << "Will delete instance" << id;
if(!FS::deletePath(inst->instanceRoot()))
{
qWarning() << "Deletion of instance" << id << "has not been completely successful ...";
return;
}
qDebug() << "Instance" << id << "has been deleted by MultiMC.";
}
static QMap<InstanceId, InstanceLocator> getIdMapping(const QList<InstancePtr> &list)
{
QMap<InstanceId, InstanceLocator> out;
int i = 0;
for(auto & item: list)
{
auto id = item->id();
if(out.contains(id))
{
qWarning() << "Duplicate ID" << id << "in instance list";
}
out[id] = std::make_pair(item, i);
i++;
}
return out;
}
InstanceList::InstListError InstanceList::loadList()
{
auto existingIds = getIdMapping(m_instances);
QList<InstancePtr> newList;
for(auto & id: m_provider->discoverInstances())
{
if(existingIds.contains(id))
{
auto instPair = existingIds[id];
existingIds.remove(id);
qDebug() << "Should keep and soft-reload" << id;
}
else
{
InstancePtr instPtr = m_provider->loadInstance(id);
if(instPtr)
{
newList.append(instPtr);
}
}
}
// TODO: looks like a general algorithm with a few specifics inserted. Do something about it.
if(!existingIds.isEmpty())
{
// get the list of removed instances and sort it by their original index, from last to first
auto deadList = existingIds.values();
auto orderSortPredicate = [](const InstanceLocator & a, const InstanceLocator & b) -> bool
{
return a.second > b.second;
};
std::sort(deadList.begin(), deadList.end(), orderSortPredicate);
// remove the contiguous ranges of rows
int front_bookmark = -1;
int back_bookmark = -1;
int currentItem = -1;
auto removeNow = [&]()
{
beginRemoveRows(QModelIndex(), front_bookmark, back_bookmark);
m_instances.erase(m_instances.begin() + front_bookmark, m_instances.begin() + back_bookmark + 1);
endRemoveRows();
front_bookmark = -1;
back_bookmark = currentItem;
};
for(auto & removedItem: deadList)
{
auto instPtr = removedItem.first;
instPtr->invalidate();
currentItem = removedItem.second;
if(back_bookmark == -1)
{
// no bookmark yet
back_bookmark = currentItem;
}
else if(currentItem == front_bookmark - 1)
{
// part of contiguous sequence, continue
}
else
{
// seam between previous and current item
removeNow();
}
front_bookmark = currentItem;
}
if(back_bookmark != -1)
{
removeNow();
}
}
if(newList.size())
{
add(newList);
}
m_dirty = false;
return NoError;
}
void InstanceList::saveNow()
{
for(auto & item: m_instances)
{
item->saveNow();
}
}
void InstanceList::add(const QList<InstancePtr> &t)
{
beginInsertRows(QModelIndex(), m_instances.count(), m_instances.count() + t.size() - 1);
m_instances.append(t);
for(auto & ptr : t)
{
connect(ptr.get(), &BaseInstance::propertiesChanged, this, &InstanceList::propertiesChanged);
}
endInsertRows();
}
void InstanceList::resumeWatch()
{
if(m_watchLevel > 0)
{
qWarning() << "Bad suspend level resume in instance list";
return;
}
m_watchLevel++;
if(m_watchLevel > 0 && m_dirty)
{
loadList();
}
}
void InstanceList::suspendWatch()
{
m_watchLevel --;
}
void InstanceList::providerUpdated()
{
auto provider = dynamic_cast<FolderInstanceProvider *>(QObject::sender());
if(!provider)
{
qWarning() << "InstanceList::providerUpdated triggered by a non-provider";
return;
}
m_dirty = true;
if(m_watchLevel == 1)
{
loadList();
}
}
void InstanceList::groupsPublished(QSet<QString> newGroups)
{
m_groups.unite(newGroups);
}
void InstanceList::addInstanceProvider(FolderInstanceProvider* provider)
{
connect(provider, &FolderInstanceProvider::instancesChanged, this, &InstanceList::providerUpdated);
connect(provider, &FolderInstanceProvider::groupsChanged, this, &InstanceList::groupsPublished);
m_provider = provider;
}
InstancePtr InstanceList::getInstanceById(QString instId) const
{
if(instId.isEmpty())
return InstancePtr();
for(auto & inst: m_instances)
{
if (inst->id() == instId)
{
return inst;
}
}
return InstancePtr();
}
QModelIndex InstanceList::getInstanceIndexById(const QString &id) const
{
return index(getInstIndex(getInstanceById(id).get()));
}
int InstanceList::getInstIndex(BaseInstance *inst) const
{
int count = m_instances.count();
for (int i = 0; i < count; i++)
{
if (inst == m_instances[i].get())
{
return i;
}
}
return -1;
}
void InstanceList::propertiesChanged(BaseInstance *inst)
{
int i = getInstIndex(inst);
if (i != -1)
{
emit dataChanged(index(i), index(i));
}
}
|