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
|
// pkg_sortpolicy.cc
//
// Copyright (C) 2001, 2005 Daniel Burrows
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// This program 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; see the file COPYING. If not, write to
// the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
#include "pkg_sortpolicy.h"
#include "pkg_item.h"
#include "pkg_ver_item.h"
#include <apt-pkg/pkgsystem.h>
#include <apt-pkg/version.h>
#include <cwidget/widgets/subtree.h>
namespace cw = cwidget;
namespace cwidget
{
using namespace widgets;
}
// Blah, this is the easiest way to define trivial subclasses:
// (not that far from lambda, actually)
// Yes, I hate typing more than I have to.
#define PKG_SORTPOLICY_SUBCLASS(name,code) \
class name##_impl:public pkg_sortpolicy \
{ \
public: \
name##_impl(pkg_sortpolicy *_chain, bool _reversed)\
:pkg_sortpolicy(_chain, _reversed) {} \
\
\
inline int do_compare(const pkgCache::PkgIterator &pkg1, const pkgCache::VerIterator &ver1, \
const pkgCache::PkgIterator &pkg2, const pkgCache::VerIterator &ver2) const \
{ \
code \
} \
\
int compare(const pkgCache::PkgIterator &pkg1, const pkgCache::VerIterator &ver1, \
const pkgCache::PkgIterator &pkg2, const pkgCache::VerIterator &ver2) const \
{ \
int rval=do_compare(pkg1, ver1, pkg2, ver2); \
if(rval==0 && get_chain()) \
return get_chain()->compare(pkg1, ver1, pkg2, ver2);\
else \
return get_reversed()?-rval:rval; \
} \
}; \
\
pkg_sortpolicy *name(pkg_sortpolicy *chain, bool reversed) \
{ \
return new name##_impl(chain, reversed); \
} \
/** Convert the given tree item to a package/version pair using
* dynamic_cast to either pkg_item or pkg_ver_item.
*
* \param item the item to convert
* \param[out] pkg the package of this item
* \param[out] ver the version of this item
*
* \return \b true if the conversion was successful.
*/
static
bool find_package_and_ver(cw::treeitem *item,
pkgCache::PkgIterator &pkg,
pkgCache::VerIterator &ver)
{
const pkg_item *pitem = dynamic_cast<const pkg_item *>(item);
if(pitem != NULL)
{
pkg = pitem->get_package();
ver = pitem->visible_version();
return true;
}
const pkg_ver_item *vitem = dynamic_cast<const pkg_ver_item *>(item);
if(vitem != NULL)
{
pkg = vitem->get_package();
ver = vitem->get_version();
return true;
}
return false;
}
int pkg_sortpolicy_wrapper::compare(cw::treeitem *item1,
cw::treeitem *item2) const
{
pkgCache::PkgIterator pkg1, pkg2;
pkgCache::VerIterator ver1, ver2;
// To ensure that the sort is sane, sort non-package stuff above all package stuff.
if(!find_package_and_ver(item1, pkg1, ver1))
{
if(!find_package_and_ver(item2, pkg2, ver2))
return wcscmp(item1->tag(), item2->tag());
else
return -1;
}
else if(!find_package_and_ver(item2, pkg2, ver2))
return 1;
else if(chain)
return chain->compare(pkg1, ver1, pkg2, ver2);
else
return 0; // punt!
}
// The old by-name sorting
PKG_SORTPOLICY_SUBCLASS(pkg_sortpolicy_name,
return strcmp(pkg1.Name(), pkg2.Name()););
// installed-size-sorting, treats virtual packages as 0-size
PKG_SORTPOLICY_SUBCLASS(pkg_sortpolicy_installed_size,
if(ver1.end() && ver2.end())
return 0;
else if(ver1.end())
return 1;
else if(ver2.end())
return -1;
else if(ver1->InstalledSize<ver2->InstalledSize)
return -1;
else if(ver1->InstalledSize>ver2->InstalledSize)
return 1;
else
return 0;);
// Priority sorting
PKG_SORTPOLICY_SUBCLASS(pkg_sortpolicy_priority,
int pri1=ver1.end()?0:ver1->Priority;
int pri2=ver2.end()?0:ver2->Priority;
if(pri1<pri2)
return -1;
else if(pri1==pri2)
return 0;
else // if(pri1>pri2)
return 1;);
// Sort by version number
PKG_SORTPOLICY_SUBCLASS(pkg_sortpolicy_ver,
if(ver1.end())
return -1;
else if(ver2.end())
return 1;
else
return _system->VS->CmpVersion(ver1.VerStr(),
ver2.VerStr()););
|
