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/***************************************************************************
* Copyright (C) 2005-2014 by the Quassel Project *
* devel@quassel-irc.org *
* *
* 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) version 3. *
* *
* 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; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef HAVE_KDE
#include <QCoreApplication>
#include <QDebug>
#include <QDir>
#include <QFile>
#include "iconloader.h"
#include "quassel.h"
#include "util.h"
IconLoader IconLoader::_iconLoader;
int IconLoader::_groupSize[] = { 48, 22, 22, 16, 32, 22 }; // default sizes taken from Oxygen
IconLoader *IconLoader::global()
{
// Workaround: the static _iconLoader might be initialized before the resources it needs
// This way, first call to global() will init it by setting the theme
if (_iconLoader.theme().isEmpty())
_iconLoader.setTheme("oxygen");
return &_iconLoader;
}
IconLoader::IconLoader(QObject *parent) : QObject(parent)
{
// setTheme("oxygen");
}
IconLoader::~IconLoader()
{
}
void IconLoader::setTheme(const QString &theme)
{
_theme = theme;
// check which dirs could contain themed icons
_themedIconDirNames.clear();
_plainIconDirNames.clear();
// First, look for a system theme
// This is supposed to only work on Unix, though other platforms might set $XDG_DATA_DIRS if they please.
QStringList iconDirNames = QString(qgetenv("XDG_DATA_DIRS")).split(':', QString::SkipEmptyParts);
if (!iconDirNames.isEmpty()) {
for (int i = 0; i < iconDirNames.count(); i++)
iconDirNames[i].append(QString("/icons/"));
}
#ifdef Q_OS_UNIX
else {
// Provide a fallback
iconDirNames << "/usr/share/icons/";
}
// Add our prefix too
QString appDir = QCoreApplication::applicationDirPath();
int binpos = appDir.lastIndexOf("/bin");
if (binpos >= 0) {
appDir.replace(binpos, 4, "/share");
appDir.append("/icons/");
if (!iconDirNames.contains(appDir))
iconDirNames.append(appDir);
}
#endif
// Now look for an icons/ subdir in our data paths
foreach(const QString &dir, Quassel::dataDirPaths())
iconDirNames << dir + "icons/";
// Add our resource path too
iconDirNames << ":/icons/";
// Ready do add theme names
foreach(const QString &dir, iconDirNames) {
QString path = dir + theme + '/';
if (QFile::exists(path))
_themedIconDirNames << path;
}
foreach(const QString &dir, iconDirNames) {
QString path = dir + "hicolor/";
if (QFile::exists(path))
_themedIconDirNames << path;
}
// We ship some plain (non-themed) icons in $data/pics
foreach(const QString &dir, Quassel::dataDirPaths()) {
QString path = dir + "pics/";
if (QFile::exists(path))
_plainIconDirNames << path;
}
// And of course, our resource path
if (QFile::exists(":/pics"))
_plainIconDirNames << ":/pics";
}
// TODO: optionally implement cache (speed/memory tradeoff?)
QPixmap IconLoader::loadIcon(const QString &name, IconLoader::Group group, int size)
{
if (group < 0 || group >= LastGroup) {
qWarning() << "Invalid icon group!";
return QPixmap();
}
if (size == 0)
size = _groupSize[group];
QString path = findIconPath(name, size);
if (path.isEmpty()) return QPixmap();
// load the icon
return QPixmap(path);
}
QString IconLoader::findIconPath(const QString &name, int size)
{
QString fname = QString("%1.png").arg(name); // we only support PNG so far
// First, look for a themed icon... we don't do anything fancy here, only exact match for both name and size
foreach(QString basedir, _themedIconDirNames) {
QDir sizedir(QString("%1/%2x%2").arg(basedir).arg(QString::number(size)));
if (sizedir.exists()) {
// ignore context, i.e. scan all subdirs
QStringList contextdirs = sizedir.entryList(QDir::Dirs | QDir::NoDotAndDotDot);
foreach(QString dir, contextdirs) {
QString path = QString("%1/%2/%3").arg(sizedir.absolutePath(), dir, fname);
if (QFile::exists(path)) return path;
}
}
}
// Now check the plain dirs
foreach(QString dir, _plainIconDirNames) {
QString path = QString("%1/%2").arg(dir, name);
if (QFile::exists(path)) return path;
}
qWarning() << "Icon not found:" << name << size;
return QString();
}
// Convenience constructors
QPixmap DesktopIcon(const QString &name, int force_size)
{
IconLoader *loader = IconLoader::global();
return loader->loadIcon(name, IconLoader::Desktop, force_size);
}
QPixmap BarIcon(const QString &name, int force_size)
{
IconLoader *loader = IconLoader::global();
return loader->loadIcon(name, IconLoader::Toolbar, force_size);
}
QPixmap MainBarIcon(const QString &name, int force_size)
{
IconLoader *loader = IconLoader::global();
return loader->loadIcon(name, IconLoader::MainToolbar, force_size);
}
QPixmap SmallIcon(const QString &name, int force_size)
{
IconLoader *loader = IconLoader::global();
return loader->loadIcon(name, IconLoader::Small, force_size);
}
#endif
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