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tdelibs/tdecore/kicontheme.cpp

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/* vi: ts=8 sts=4 sw=4
*
* $Id$
*
* This file is part of the KDE project, module tdecore.
* Copyright (C) 2000 Geert Jansen <jansen@kde.org>
* Antonio Larrosa <larrosa@kde.org>
*
* This is free software; it comes under the GNU Library General
* Public License, version 2. See the file "COPYING.LIB" for the
* exact licensing terms.
*
* kicontheme.cpp: Lowlevel icon theme handling.
*/
#include <sys/stat.h>
#include <unistd.h>
#include <stdlib.h>
#include <config.h>
#include <tqstring.h>
#include <tqstringlist.h>
#include <tqvaluelist.h>
#include <tqmap.h>
#include <tqpixmap.h>
#include <tqpixmapcache.h>
#include <tqimage.h>
#include <tqfileinfo.h>
#include <tqdir.h>
#include <kdebug.h>
#include <kstandarddirs.h>
#include <kglobal.h>
#include <kconfig.h>
#include <ksimpleconfig.h>
#include <kinstance.h>
#include "kicontheme.h"
class KIconThemePrivate
{
public:
TQString example, screenshot;
TQString linkOverlay, lockOverlay, zipOverlay, shareOverlay;
bool hidden;
KSharedConfig::Ptr sharedConfig;
};
/**
* A subdirectory in an icon theme.
*/
class KIconThemeDir
{
public:
KIconThemeDir(const TQString& dir, const KConfigBase *config);
bool isValid() const { return mbValid; }
TQString iconPath(const TQString& name) const;
TQStringList iconList() const;
TQString dir() const { return mDir; }
KIcon::Context context() const { return mContext; }
KIcon::Type type() const { return mType; }
int size() const { return mSize; }
int minSize() const { return mMinSize; }
int maxSize() const { return mMaxSize; }
int threshold() const { return mThreshold; }
private:
bool mbValid;
KIcon::Type mType;
KIcon::Context mContext;
int mSize, mMinSize, mMaxSize;
int mThreshold;
TQString mDir;
};
/*** KIconTheme ***/
KIconTheme::KIconTheme(const TQString& name, const TQString& appName)
{
d = new KIconThemePrivate;
TQStringList icnlibs;
TQStringList::ConstIterator it, itDir;
TQStringList themeDirs;
TQString cDir;
// Applications can have local additions to the global "locolor" and
// "hicolor" icon themes. For these, the _global_ theme description
// files are used..
if (!appName.isEmpty() &&
( name == "crystalsvg" || name== "hicolor" || name == "locolor" ) )
{
icnlibs = KGlobal::dirs()->resourceDirs("data");
for (it=icnlibs.begin(); it!=icnlibs.end(); ++it)
{
cDir = *it + appName + "/icons/" + name;
if (TQFile::exists( cDir ))
themeDirs += cDir + "/";
}
}
// Find the theme description file. These are always global.
icnlibs = KGlobal::dirs()->resourceDirs("icon");
icnlibs += KGlobal::dirs()->resourceDirs("xdgdata-icon");
icnlibs += "/usr/share/pixmaps";
// These are not in the icon spec, but e.g. GNOME puts some icons there anyway.
icnlibs += KGlobal::dirs()->resourceDirs("xdgdata-pixmap");
for (it=icnlibs.begin(); it!=icnlibs.end(); ++it)
{
cDir = *it + name + "/";
if (KStandardDirs::exists(cDir))
{
themeDirs += cDir;
if (mDir.isEmpty()
&& (KStandardDirs::exists( cDir + "index.desktop") || KStandardDirs::exists( cDir + "index.theme")))
mDir = cDir;
}
}
if (mDir.isEmpty())
{
kdDebug(264) << "Icon theme " << name << " not found.\n";
return;
}
TQString fileName, mainSection;
if(TQFile::exists(mDir + "index.desktop")) {
fileName = mDir + "index.desktop";
mainSection="KDE Icon Theme";
} else {
fileName = mDir + "index.theme";
mainSection="Icon Theme";
}
// Use KSharedConfig to avoid parsing the file many times, from each kinstance.
// Need to keep a ref to it to make this useful
d->sharedConfig = KSharedConfig::openConfig( fileName, true /*readonly*/, false /*useKDEGlobals*/ );
KConfig& cfg = *d->sharedConfig;
//was: KSimpleConfig cfg(fileName);
cfg.setGroup(mainSection);
mName = cfg.readEntry("Name");
mDesc = cfg.readEntry("Comment");
mDepth = cfg.readNumEntry("DisplayDepth", 32);
mInherits = cfg.readListEntry("Inherits");
if ( name != "crystalsvg" )
for ( TQStringList::Iterator it = mInherits.begin(); it != mInherits.end(); ++it )
if ( *it == "default" || *it == "hicolor" ) *it="crystalsvg";
d->hidden = cfg.readBoolEntry("Hidden", false);
d->example = cfg.readPathEntry("Example");
d->screenshot = cfg.readPathEntry("ScreenShot");
d->linkOverlay = cfg.readEntry("LinkOverlay", "link");
d->lockOverlay = cfg.readEntry("LockOverlay", "lock");
d->zipOverlay = cfg.readEntry("ZipOverlay", "zip");
d->shareOverlay = cfg.readEntry("ShareOverlay","share");
TQStringList dirs = cfg.readPathListEntry("Directories");
mDirs.setAutoDelete(true);
for (it=dirs.begin(); it!=dirs.end(); ++it)
{
cfg.setGroup(*it);
for (itDir=themeDirs.begin(); itDir!=themeDirs.end(); ++itDir)
{
if (KStandardDirs::exists(*itDir + *it + "/"))
{
KIconThemeDir *dir = new KIconThemeDir(*itDir + *it, &cfg);
if (!dir->isValid())
{
kdDebug(264) << "Icon directory " << *itDir << " group " << *it << " not valid.\n";
delete dir;
}
else
mDirs.append(dir);
}
}
}
// Expand available sizes for scalable icons to their full range
int i;
TQMap<int,TQValueList<int> > scIcons;
for (KIconThemeDir *dir=mDirs.first(); dir!=0L; dir=mDirs.next())
{
if ((dir->type() == KIcon::Scalable) && !scIcons.contains(dir->size()))
{
TQValueList<int> lst;
for (i=dir->minSize(); i<=dir->maxSize(); i++)
lst += i;
scIcons[dir->size()] = lst;
}
}
TQStringList groups;
groups += "Desktop";
groups += "Toolbar";
groups += "MainToolbar";
groups += "Small";
groups += "Panel";
const int defDefSizes[] = { 32, 22, 22, 16, 32 };
cfg.setGroup(mainSection);
for (it=groups.begin(), i=0; it!=groups.end(); ++it, i++)
{
mDefSize[i] = cfg.readNumEntry(*it + "Default", defDefSizes[i]);
TQValueList<int> exp, lst = cfg.readIntListEntry(*it + "Sizes");
TQValueList<int>::ConstIterator it2;
for (it2=lst.begin(); it2!=lst.end(); ++it2)
{
if (scIcons.contains(*it2))
exp += scIcons[*it2];
else
exp += *it2;
}
mSizes[i] = exp;
}
}
KIconTheme::~KIconTheme()
{
delete d;
}
bool KIconTheme::isValid() const
{
return !mDirs.isEmpty();
}
bool KIconTheme::isHidden() const
{
return d->hidden;
}
TQString KIconTheme::example() const { return d->example; }
TQString KIconTheme::screenshot() const { return d->screenshot; }
TQString KIconTheme::linkOverlay() const { return d->linkOverlay; }
TQString KIconTheme::lockOverlay() const { return d->lockOverlay; }
TQString KIconTheme::zipOverlay() const { return d->zipOverlay; }
TQString KIconTheme::shareOverlay() const { return d->shareOverlay; }
int KIconTheme::defaultSize(KIcon::Group group) const
{
if ((group < 0) || (group >= KIcon::LastGroup))
{
kdDebug(264) << "Illegal icon group: " << group << "\n";
return -1;
}
return mDefSize[group];
}
TQValueList<int> KIconTheme::querySizes(KIcon::Group group) const
{
TQValueList<int> empty;
if ((group < 0) || (group >= KIcon::LastGroup))
{
kdDebug(264) << "Illegal icon group: " << group << "\n";
return empty;
}
return mSizes[group];
}
TQStringList KIconTheme::queryIcons(int size, KIcon::Context context) const
{
int delta = 1000, dw;
TQPtrListIterator<KIconThemeDir> dirs(mDirs);
KIconThemeDir *dir;
// Try to find exact match
TQStringList result;
for ( ; dirs.current(); ++dirs)
{
dir = dirs.current();
if ((context != KIcon::Any) && (context != dir->context()))
continue;
if ((dir->type() == KIcon::Fixed) && (dir->size() == size))
{
result += dir->iconList();
continue;
}
if ((dir->type() == KIcon::Scalable) &&
(size >= dir->minSize()) && (size <= dir->maxSize()))
{
result += dir->iconList();
continue;
}
if ((dir->type() == KIcon::Threshold) &&
(abs(size-dir->size())<dir->threshold()))
result+=dir->iconList();
}
return result;
dirs.toFirst();
// Find close match
KIconThemeDir *best = 0L;
for ( ; dirs.current(); ++dirs)
{
dir = dirs.current();
if ((context != KIcon::Any) && (context != dir->context()))
continue;
dw = dir->size() - size;
if ((dw > 6) || (abs(dw) >= abs(delta)))
continue;
delta = dw;
best = dir;
}
if (best == 0L)
return TQStringList();
return best->iconList();
}
TQStringList KIconTheme::queryIconsByContext(int size, KIcon::Context context) const
{
TQPtrListIterator<KIconThemeDir> dirs(mDirs);
int dw;
KIconThemeDir *dir;
// We want all the icons for a given context, but we prefer icons
// of size size . Note that this may (will) include duplicate icons
//TQStringList iconlist[34]; // 33 == 48-16+1
TQStringList iconlist[128]; // 33 == 48-16+1
// Usually, only the 0, 6 (22-16), 10 (32-22), 16 (48-32 or 32-16),
// 26 (48-22) and 32 (48-16) will be used, but who knows if someone
// will make icon themes with different icon sizes.
for ( ; dirs.current(); ++dirs)
{
dir = dirs.current();
if ((context != KIcon::Any) && (context != dir->context()))
continue;
dw = abs(dir->size() - size);
iconlist[(dw<127)?dw:127]+=dir->iconList();
}
TQStringList iconlistResult;
for (int i=0; i<128; i++) iconlistResult+=iconlist[i];
return iconlistResult;
}
bool KIconTheme::hasContext(KIcon::Context context) const
{
TQPtrListIterator<KIconThemeDir> dirs(mDirs);
KIconThemeDir *dir;
for ( ; dirs.current(); ++dirs)
{
dir = dirs.current();
if ((context == KIcon::Any) || (context == dir->context()))
return true;
}
return false;
}
KIcon KIconTheme::iconPath(const TQString& name, int size, KIcon::MatchType match) const
{
KIcon icon;
TQString path;
int delta = -1000, dw;
KIconThemeDir *dir;
dw = 1000; // shut up, gcc
TQPtrListIterator<KIconThemeDir> dirs(mDirs);
for ( ; dirs.current(); ++dirs)
{
dir = dirs.current();
if (match == KIcon::MatchExact)
{
if ((dir->type() == KIcon::Fixed) && (dir->size() != size))
continue;
if ((dir->type() == KIcon::Scalable) &&
((size < dir->minSize()) || (size > dir->maxSize())))
continue;
if ((dir->type() == KIcon::Threshold) &&
(abs(dir->size()-size) > dir->threshold()))
continue;
} else
{
// dw < 0 means need to scale up to get an icon of the requested size
if (dir->type() == KIcon::Fixed)
{
dw = dir->size() - size;
} else if (dir->type() == KIcon::Scalable)
{
if (size < dir->minSize())
dw = dir->minSize() - size;
else if (size > dir->maxSize())
dw = dir->maxSize() - size;
else
dw = 0;
} else if (dir->type() == KIcon::Threshold)
{
if (size < dir->size() - dir->threshold())
dw = dir->size() - dir->threshold() - size;
else if (size > dir->size() + dir->threshold())
dw = dir->size() + dir->threshold() - size;
else
dw = 0;
}
/* Skip this if we've found a closer one, unless
it's a downscale, and we only had upscales befores.
This is to avoid scaling up unless we have to,
since that looks very ugly */
if (/*(abs(dw) >= abs(delta)) ||*/
(delta > 0 && dw < 0))
continue;
}
path = dir->iconPath(name);
if (path.isEmpty())
continue;
icon.path = path;
icon.size = dir->size();
icon.type = dir->type();
icon.threshold = dir->threshold();
icon.context = dir->context();
// if we got in MatchExact that far, we find no better
if (match == KIcon::MatchExact)
return icon;
else
{
delta = dw;
if (delta==0) return icon; // We won't find a better match anyway
}
}
return icon;
}
// static
TQString *KIconTheme::_theme = 0L;
// static
TQStringList *KIconTheme::_theme_list = 0L;
// static
TQString KIconTheme::current()
{
// Static pointer because of unloading problems wrt DSO's.
if (_theme != 0L)
return *_theme;
_theme = new TQString();
KConfig *config = KGlobal::config();
KConfigGroupSaver saver(config, "Icons");
*_theme = config->readEntry("Theme",defaultThemeName());
if ( *_theme == TQString::tqfromLatin1("hicolor") ) *_theme = defaultThemeName();
/* if (_theme->isEmpty())
{
if (TQPixmap::defaultDepth() > 8)
*_theme = defaultThemeName();
else
*_theme = TQString::tqfromLatin1("locolor");
}*/
return *_theme;
}
// static
TQStringList KIconTheme::list()
{
// Static pointer because of unloading problems wrt DSO's.
if (_theme_list != 0L)
return *_theme_list;
_theme_list = new TQStringList();
TQStringList icnlibs = KGlobal::dirs()->resourceDirs("icon");
icnlibs += (KGlobal::dirs()->resourceDirs("xdgdata-icon"));
icnlibs += "/usr/share/pixmaps";
// These are not in the icon spec, but e.g. GNOME puts some icons there anyway.
icnlibs += KGlobal::dirs()->resourceDirs("xdgdata-pixmap");
TQStringList::ConstIterator it;
for (it=icnlibs.begin(); it!=icnlibs.end(); ++it)
{
TQDir dir(*it);
if (!dir.exists())
continue;
TQStringList lst = dir.entryList(TQDir::Dirs);
TQStringList::ConstIterator it2;
for (it2=lst.begin(); it2!=lst.end(); ++it2)
{
if ((*it2 == ".") || (*it2 == "..") || (*it2).startsWith("default.") )
continue;
if (!KStandardDirs::exists(*it + *it2 + "/index.desktop") && !KStandardDirs::exists(*it + *it2 + "/index.theme"))
continue;
KIconTheme oink(*it2);
if (!oink.isValid()) continue;
if (!_theme_list->contains(*it2))
_theme_list->append(*it2);
}
}
return *_theme_list;
}
// static
void KIconTheme::reconfigure()
{
delete _theme;
_theme=0L;
delete _theme_list;
_theme_list=0L;
}
// static
TQString KIconTheme::defaultThemeName()
{
return TQString::tqfromLatin1("crystalsvg");
}
/*** KIconThemeDir ***/
KIconThemeDir::KIconThemeDir(const TQString& dir, const KConfigBase *config)
{
mbValid = false;
mDir = dir;
mSize = config->readNumEntry("Size");
mMinSize = 1; // just set the variables to something
mMaxSize = 50; // meaningful in case someone calls minSize or maxSize
mType = KIcon::Fixed;
if (mSize == 0)
return;
TQString tmp = config->readEntry("Context");
if (tmp == "Devices")
mContext = KIcon::Device;
else if (tmp == "MimeTypes")
mContext = KIcon::MimeType;
else if (tmp == "FileSystems")
mContext = KIcon::FileSystem;
else if (tmp == "Applications")
mContext = KIcon::Application;
else if (tmp == "Actions")
mContext = KIcon::Action;
else if (tmp == "Animations")
mContext = KIcon::Animation;
else if (tmp == "Categories")
mContext = KIcon::Category;
else if (tmp == "Emblems")
mContext = KIcon::Emblem;
else if (tmp == "Emotes")
mContext = KIcon::Emote;
else if (tmp == "International")
mContext = KIcon::International;
else if (tmp == "Places")
mContext = KIcon::Place;
else if (tmp == "Status")
mContext = KIcon::StatusIcon;
else {
kdDebug(264) << "Invalid Context= line for icon theme: " << mDir << "\n";
return;
}
tmp = config->readEntry("Type");
if (tmp == "Fixed")
mType = KIcon::Fixed;
else if (tmp == "Scalable")
mType = KIcon::Scalable;
else if (tmp == "Threshold")
mType = KIcon::Threshold;
else {
kdDebug(264) << "Invalid Type= line for icon theme: " << mDir << "\n";
return;
}
if (mType == KIcon::Scalable)
{
mMinSize = config->readNumEntry("MinSize", mSize);
mMaxSize = config->readNumEntry("MaxSize", mSize);
} else if (mType == KIcon::Threshold)
mThreshold = config->readNumEntry("Threshold", 2);
mbValid = true;
}
TQString KIconThemeDir::iconPath(const TQString& name) const
{
if (!mbValid)
return TQString::null;
TQString file = mDir + "/" + name;
if (access(TQFile::encodeName(file), R_OK) == 0)
return file;
return TQString::null;
}
TQStringList KIconThemeDir::iconList() const
{
TQDir dir(mDir);
#ifdef HAVE_LIBART
TQStringList lst = dir.entryList("*.png;*.svg;*.svgz;*.xpm", TQDir::Files);
#else
TQStringList lst = dir.entryList("*.png;*.xpm", TQDir::Files);
#endif
TQStringList result;
TQStringList::ConstIterator it;
for (it=lst.begin(); it!=lst.end(); ++it)
result += mDir + "/" + *it;
return result;
}
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