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
|
/**
* @file llfolderviewmodel.cpp
* @brief Implementation of the view model collection of classes.
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* 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;
* version 2.1 of the License only.
*
* 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
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llfolderviewmodel.h"
#include "lltrans.h"
// LLFolderViewModelItemCommon
LLFolderViewModelItemCommon::LLFolderViewModelItemCommon(LLFolderViewModelInterface& root_view_model)
: mSortVersion(-1),
mPassedFilter(true),
mPassedFolderFilter(true),
mStringMatchOffsetFilter(std::string::npos),
mStringFilterSize(0),
mFolderViewItem(NULL),
mLastFilterGeneration(-1),
mLastFolderFilterGeneration(-1),
mMarkedDirtyGeneration(-1),
mMostFilteredDescendantGeneration(-1),
mParent(NULL),
mRootViewModel(root_view_model)
{
mChildren.clear(); //???
}
LLFolderViewModelItemCommon::~LLFolderViewModelItemCommon()
{
// Children don't belong to model, but to LLFolderViewItem, just mark them as having no parent
std::for_each(mChildren.begin(), mChildren.end(), [](LLFolderViewModelItem* c) {c->setParent(NULL); });
// Don't leave dead pointer in parent
if (mParent)
{
mParent->removeChild(this);
}
}
void LLFolderViewModelItemCommon::dirtyFilter()
{
if (mMarkedDirtyGeneration < 0)
{
mMarkedDirtyGeneration = mLastFilterGeneration;
}
mLastFilterGeneration = -1;
mLastFolderFilterGeneration = -1;
// bubble up dirty flag all the way to root
if (mParent)
{
mParent->dirtyFilter();
}
}
void LLFolderViewModelItemCommon::dirtyDescendantsFilter()
{
mMostFilteredDescendantGeneration = -1;
if (mParent)
{
mParent->dirtyDescendantsFilter();
}
}
//virtual
void LLFolderViewModelItemCommon::addChild(LLFolderViewModelItem* child)
{
// Avoid duplicates: bail out if that child is already present in the list
// Note: this happens when models are created before views
child_list_t::const_iterator iter;
for (iter = mChildren.begin(); iter != mChildren.end(); iter++)
{
if (child == *iter)
{
return;
}
}
mChildren.push_back(child);
child->setParent(this);
dirtyFilter();
requestSort();
}
//virtual
void LLFolderViewModelItemCommon::removeChild(LLFolderViewModelItem* child)
{
mChildren.remove(child);
child->setParent(NULL);
dirtyDescendantsFilter();
dirtyFilter();
}
//virtual
void LLFolderViewModelItemCommon::clearChildren()
{
// As this is cleaning the whole list of children wholesale, we do need to delete the pointed objects
// This is different and not equivalent to calling removeChild() on each child
std::for_each(mChildren.begin(), mChildren.end(), DeletePointer());
mChildren.clear();
dirtyDescendantsFilter();
dirtyFilter();
}
void LLFolderViewModelItemCommon::setPassedFilter(bool passed, S32 filter_generation, std::string::size_type string_offset /*= std::string::npos*/, std::string::size_type string_size /*= 0*/)
{
mPassedFilter = passed;
mLastFilterGeneration = filter_generation;
mStringMatchOffsetFilter = string_offset;
mStringFilterSize = string_size;
mMarkedDirtyGeneration = -1;
}
void LLFolderViewModelItemCommon::setPassedFolderFilter(bool passed, S32 filter_generation)
{
mPassedFolderFilter = passed;
mLastFolderFilterGeneration = filter_generation;
}
//virtual
bool LLFolderViewModelItemCommon::potentiallyVisible()
{
return passedFilter() // we've passed the filter
|| (getLastFilterGeneration() < mRootViewModel.getFilter().getFirstSuccessGeneration()) // or we don't know yet
|| descendantsPassedFilter();
}
//virtual
bool LLFolderViewModelItemCommon::passedFilter(S32 filter_generation /*= -1*/)
{
if (filter_generation < 0)
{
filter_generation = mRootViewModel.getFilter().getFirstSuccessGeneration();
}
bool passed_folder_filter = mPassedFolderFilter && (mLastFolderFilterGeneration >= filter_generation);
bool passed_filter = mPassedFilter && (mLastFilterGeneration >= filter_generation);
return passed_folder_filter && (passed_filter || descendantsPassedFilter(filter_generation));
}
//virtual
bool LLFolderViewModelItemCommon::descendantsPassedFilter(S32 filter_generation /*= -1*/)
{
if (filter_generation < 0)
{
filter_generation = mRootViewModel.getFilter().getFirstSuccessGeneration();
}
return mMostFilteredDescendantGeneration >= filter_generation;
}
// LLFolderViewModelCommon
LLFolderViewModelCommon::LLFolderViewModelCommon()
: mTargetSortVersion(0),
mFolderView(NULL)
{}
//virtual
void LLFolderViewModelCommon::requestSortAll()
{
// sort everything
mTargetSortVersion++;
}
bool LLFolderViewModelCommon::needsSort(LLFolderViewModelItem* item)
{
return item->getSortVersion() < mTargetSortVersion;
}
std::string LLFolderViewModelCommon::getStatusText()
{
if (!contentsReady() || mFolderView->getViewModelItem()->getLastFilterGeneration() < getFilter().getCurrentGeneration())
{
return LLTrans::getString("Searching");
}
else
{
return getFilter().getEmptyLookupMessage();
}
}
void LLFolderViewModelCommon::filter()
{
static LLCachedControl<S32> filter_visible(*LLUI::getInstance()->mSettingGroups["config"], "FilterItemsMaxTimePerFrameVisible", 10);
getFilter().resetTime(llclamp(filter_visible(), 1, 100));
mFolderView->getViewModelItem()->filter(getFilter());
}
bool LLFolderViewModelItemCommon::hasFilterStringMatch()
{
return mStringMatchOffsetFilter != std::string::npos;
}
std::string::size_type LLFolderViewModelItemCommon::getFilterStringOffset()
{
return mStringMatchOffsetFilter;
}
std::string::size_type LLFolderViewModelItemCommon::getFilterStringSize()
{
return mRootViewModel.getFilter().getFilterStringSize();
}
|
