1 | /*************************************************************************** |
2 | * Copyright (C) 2005-2014 by the Quassel Project * |
3 | * devel@quassel-irc.org * |
4 | * * |
5 | * This program is free software; you can redistribute it and/or modify * |
6 | * it under the terms of the GNU General Public License as published by * |
7 | * the Free Software Foundation; either version 2 of the License, or * |
8 | * (at your option) version 3. * |
9 | * * |
10 | * This program is distributed in the hope that it will be useful, * |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
13 | * GNU General Public License for more details. * |
14 | * * |
15 | * You should have received a copy of the GNU General Public License * |
16 | * along with this program; if not, write to the * |
17 | * Free Software Foundation, Inc., * |
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * |
19 | ***************************************************************************/ |
20 | |
21 | #ifndef HAVE_KDE |
22 | |
23 | #include <QCoreApplication> |
24 | #include <QDebug> |
25 | #include <QDir> |
26 | #include <QFile> |
27 | |
28 | #include "iconloader.h" |
29 | #include "quassel.h" |
30 | #include "util.h" |
31 | |
32 | IconLoader IconLoader::_iconLoader; |
33 | int IconLoader::_groupSize[] = { 48, 22, 22, 16, 32, 22 }; // default sizes taken from Oxygen |
34 | |
35 | IconLoader *IconLoader::global() |
36 | { |
37 | // Workaround: the static _iconLoader might be initialized before the resources it needs |
38 | // This way, first call to global() will init it by setting the theme |
39 | if (_iconLoader.theme().isEmpty()) |
40 | _iconLoader.setTheme("oxygen" ); |
41 | return &_iconLoader; |
42 | } |
43 | |
44 | |
45 | IconLoader::IconLoader(QObject *parent) : QObject(parent) |
46 | { |
47 | // setTheme("oxygen"); |
48 | } |
49 | |
50 | |
51 | IconLoader::~IconLoader() |
52 | { |
53 | } |
54 | |
55 | |
56 | void IconLoader::setTheme(const QString &theme) |
57 | { |
58 | _theme = theme; |
59 | // check which dirs could contain themed icons |
60 | _themedIconDirNames.clear(); |
61 | _plainIconDirNames.clear(); |
62 | |
63 | // First, look for a system theme |
64 | // This is supposed to only work on Unix, though other platforms might set $XDG_DATA_DIRS if they please. |
65 | QStringList iconDirNames = QString(qgetenv("XDG_DATA_DIRS" )).split(':', QString::SkipEmptyParts); |
66 | if (!iconDirNames.isEmpty()) { |
67 | for (int i = 0; i < iconDirNames.count(); i++) |
68 | iconDirNames[i].append(QString("/icons/" )); |
69 | } |
70 | #ifdef Q_OS_UNIX |
71 | else { |
72 | // Provide a fallback |
73 | iconDirNames << "/usr/share/icons/" ; |
74 | } |
75 | // Add our prefix too |
76 | QString appDir = QCoreApplication::applicationDirPath(); |
77 | int binpos = appDir.lastIndexOf("/bin" ); |
78 | if (binpos >= 0) { |
79 | appDir.replace(binpos, 4, "/share" ); |
80 | appDir.append("/icons/" ); |
81 | if (!iconDirNames.contains(appDir)) |
82 | iconDirNames.append(appDir); |
83 | } |
84 | #endif |
85 | |
86 | // Now look for an icons/ subdir in our data paths |
87 | foreach(const QString &dir, Quassel::dataDirPaths()) |
88 | iconDirNames << dir + "icons/" ; |
89 | |
90 | // Add our resource path too |
91 | iconDirNames << ":/icons/" ; |
92 | |
93 | // Ready do add theme names |
94 | foreach(const QString &dir, iconDirNames) { |
95 | QString path = dir + theme + '/'; |
96 | if (QFile::exists(path)) |
97 | _themedIconDirNames << path; |
98 | } |
99 | foreach(const QString &dir, iconDirNames) { |
100 | QString path = dir + "hicolor/" ; |
101 | if (QFile::exists(path)) |
102 | _themedIconDirNames << path; |
103 | } |
104 | |
105 | // We ship some plain (non-themed) icons in $data/pics |
106 | foreach(const QString &dir, Quassel::dataDirPaths()) { |
107 | QString path = dir + "pics/" ; |
108 | if (QFile::exists(path)) |
109 | _plainIconDirNames << path; |
110 | } |
111 | // And of course, our resource path |
112 | if (QFile::exists(":/pics" )) |
113 | _plainIconDirNames << ":/pics" ; |
114 | } |
115 | |
116 | |
117 | // TODO: optionally implement cache (speed/memory tradeoff?) |
118 | QPixmap IconLoader::loadIcon(const QString &name, IconLoader::Group group, int size) |
119 | { |
120 | if (group < 0 || group >= LastGroup) { |
121 | qWarning() << "Invalid icon group!" ; |
122 | return QPixmap(); |
123 | } |
124 | if (size == 0) |
125 | size = _groupSize[group]; |
126 | |
127 | QString path = findIconPath(name, size); |
128 | if (path.isEmpty()) return QPixmap(); |
129 | |
130 | // load the icon |
131 | return QPixmap(path); |
132 | } |
133 | |
134 | |
135 | QString IconLoader::findIconPath(const QString &name, int size) |
136 | { |
137 | QString fname = QString("%1.png" ).arg(name); // we only support PNG so far |
138 | // First, look for a themed icon... we don't do anything fancy here, only exact match for both name and size |
139 | foreach(QString basedir, _themedIconDirNames) { |
140 | QDir sizedir(QString("%1/%2x%2" ).arg(basedir).arg(QString::number(size))); |
141 | if (sizedir.exists()) { |
142 | // ignore context, i.e. scan all subdirs |
143 | QStringList contextdirs = sizedir.entryList(QDir::Dirs | QDir::NoDotAndDotDot); |
144 | foreach(QString dir, contextdirs) { |
145 | QString path = QString("%1/%2/%3" ).arg(sizedir.absolutePath(), dir, fname); |
146 | if (QFile::exists(path)) return path; |
147 | } |
148 | } |
149 | } |
150 | // Now check the plain dirs |
151 | foreach(QString dir, _plainIconDirNames) { |
152 | QString path = QString("%1/%2" ).arg(dir, name); |
153 | if (QFile::exists(path)) return path; |
154 | } |
155 | |
156 | qWarning() << "Icon not found:" << name << size; |
157 | return QString(); |
158 | } |
159 | |
160 | |
161 | // Convenience constructors |
162 | |
163 | QPixmap DesktopIcon(const QString &name, int force_size) |
164 | { |
165 | IconLoader *loader = IconLoader::global(); |
166 | return loader->loadIcon(name, IconLoader::Desktop, force_size); |
167 | } |
168 | |
169 | |
170 | QPixmap BarIcon(const QString &name, int force_size) |
171 | { |
172 | IconLoader *loader = IconLoader::global(); |
173 | return loader->loadIcon(name, IconLoader::Toolbar, force_size); |
174 | } |
175 | |
176 | |
177 | QPixmap MainBarIcon(const QString &name, int force_size) |
178 | { |
179 | IconLoader *loader = IconLoader::global(); |
180 | return loader->loadIcon(name, IconLoader::MainToolbar, force_size); |
181 | } |
182 | |
183 | |
184 | QPixmap SmallIcon(const QString &name, int force_size) |
185 | { |
186 | IconLoader *loader = IconLoader::global(); |
187 | return loader->loadIcon(name, IconLoader::Small, force_size); |
188 | } |
189 | |
190 | |
191 | #endif |
192 | |