plasma-framework/plasma/theme.cpp

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/*
* Copyright 2006-2007 Aaron Seigo <aseigo@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2, 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 Library 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.
*/
#include "theme.h"
#include <QApplication>
#include <QFile>
#include <QFileInfo>
#include <QMutableListIterator>
#include <QPair>
#include <QStringBuilder>
#include <QTimer>
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#include "config-plasma.h"
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#if HAVE_X11
#include "private/effectwatcher_p.h"
#endif
#include <kcolorscheme.h>
#include <kcomponentdata.h>
#include <kconfiggroup.h>
#include <kdebug.h>
#include <kdirwatch.h>
#include <kglobal.h>
#include <kglobalsettings.h>
#include <kmanagerselection.h>
#include <kimagecache.h>
#include <ksharedconfig.h>
#include <kstandarddirs.h>
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#include <kwindoweffects.h>
#include <kwindowsystem.h>
#include <qstandardpaths.h>
#include "libplasma-theme-global.h"
#include "private/packages_p.h"
namespace Plasma
{
//NOTE: Default wallpaper can be set from the theme configuration
#define DEFAULT_WALLPAPER_THEME "default"
#define DEFAULT_WALLPAPER_SUFFIX ".png"
static const int DEFAULT_WALLPAPER_WIDTH = 1920;
static const int DEFAULT_WALLPAPER_HEIGHT = 1200;
enum styles {
DEFAULTSTYLE,
SVGSTYLE
};
enum CacheType {
NoCache = 0,
PixmapCache = 1,
SvgElementsCache = 2
};
Q_DECLARE_FLAGS(CacheTypes, CacheType)
Q_DECLARE_OPERATORS_FOR_FLAGS(CacheTypes)
class ThemePrivate
{
public:
ThemePrivate(Theme *theme)
: q(theme),
colorScheme(QPalette::Active, KColorScheme::Window, KSharedConfigPtr(0)),
buttonColorScheme(QPalette::Active, KColorScheme::Button, KSharedConfigPtr(0)),
viewColorScheme(QPalette::Active, KColorScheme::View, KSharedConfigPtr(0)),
defaultWallpaperTheme(DEFAULT_WALLPAPER_THEME),
defaultWallpaperSuffix(DEFAULT_WALLPAPER_SUFFIX),
defaultWallpaperWidth(DEFAULT_WALLPAPER_WIDTH),
defaultWallpaperHeight(DEFAULT_WALLPAPER_HEIGHT),
pixmapCache(0),
cachesToDiscard(NoCache),
locolor(false),
compositingActive(KWindowSystem::self()->compositingActive()),
blurActive(false),
isDefault(false),
useGlobal(true),
hasWallpapers(false),
useNativeWidgetStyle(false)
{
generalFont = QApplication::font();
ThemeConfig config;
cacheTheme = config.cacheTheme();
saveTimer = new QTimer(q);
saveTimer->setSingleShot(true);
saveTimer->setInterval(600);
QObject::connect(saveTimer, SIGNAL(timeout()), q, SLOT(scheduledCacheUpdate()));
updateNotificationTimer = new QTimer(q);
updateNotificationTimer->setSingleShot(true);
updateNotificationTimer->setInterval(500);
QObject::connect(updateNotificationTimer, SIGNAL(timeout()), q, SLOT(notifyOfChanged()));
if (QPixmap::defaultDepth() > 8) {
QObject::connect(KWindowSystem::self(), SIGNAL(compositingChanged(bool)), q, SLOT(compositingChanged(bool)));
#if HAVE_X11
//watch for blur effect property changes as well
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if (!s_blurEffectWatcher) {
s_blurEffectWatcher = new EffectWatcher("_KDE_NET_WM_BLUR_BEHIND_REGION");
}
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QObject::connect(s_blurEffectWatcher, SIGNAL(effectChanged(bool)), q, SLOT(blurBehindChanged(bool)));
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#endif
}
}
~ThemePrivate()
{
delete pixmapCache;
}
KConfigGroup &config()
{
if (!cfg.isValid()) {
QString groupName = "Theme";
if (!useGlobal) {
QString app = QCoreApplication::applicationName();
if (!app.isEmpty()) {
#ifndef NDEBUG
kDebug() << "using theme for app" << app;
#endif
groupName.append("-").append(app);
}
}
cfg = KConfigGroup(KSharedConfig::openConfig(themeRcFile), groupName);
}
return cfg;
}
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QString findInTheme(const QString &image, const QString &theme, bool cache = true);
void compositingChanged(bool active);
void discardCache(CacheTypes caches);
void scheduledCacheUpdate();
void scheduleThemeChangeNotification(CacheTypes caches);
void notifyOfChanged();
void colorsChanged();
void blurBehindChanged(bool blur);
bool useCache();
void settingsFileChanged(const QString &);
void setThemeName(const QString &themeName, bool writeSettings);
void onAppExitCleanup();
void processWallpaperSettings(KConfigBase *metadata);
const QString processStyleSheet(const QString &css);
static const char *defaultTheme;
static const char *systemColorsTheme;
static const char *themeRcFile;
#if HAVE_X11
static EffectWatcher *s_blurEffectWatcher;
#endif
Theme *q;
QString themeName;
QList<QString> fallbackThemes;
KSharedConfigPtr colors;
KColorScheme colorScheme;
KColorScheme buttonColorScheme;
KColorScheme viewColorScheme;
KConfigGroup cfg;
QFont generalFont;
QString defaultWallpaperTheme;
QString defaultWallpaperSuffix;
int defaultWallpaperWidth;
int defaultWallpaperHeight;
KImageCache *pixmapCache;
KSharedConfigPtr svgElementsCache;
QHash<QString, QSet<QString> > invalidElements;
QHash<QString, QPixmap> pixmapsToCache;
QHash<QString, QString> keysToCache;
QHash<QString, QString> idsToCache;
QHash<styles, QString> cachedStyleSheets;
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QHash<QString, QString> discoveries;
QTimer *saveTimer;
QTimer *updateNotificationTimer;
int toolTipDelay;
CacheTypes cachesToDiscard;
bool locolor : 1;
bool compositingActive : 1;
bool blurActive : 1;
bool isDefault : 1;
bool useGlobal : 1;
bool hasWallpapers : 1;
bool cacheTheme : 1;
bool useNativeWidgetStyle :1;
};
const char *ThemePrivate::defaultTheme = "default";
const char *ThemePrivate::themeRcFile = "plasmarc";
// the system colors theme is used to cache unthemed svgs with colorization needs
// these svgs do not follow the theme's colors, but rather the system colors
const char *ThemePrivate::systemColorsTheme = "internal-system-colors";
#if HAVE_X11
EffectWatcher *ThemePrivate::s_blurEffectWatcher = 0;
#endif
bool ThemePrivate::useCache()
{
if (cacheTheme && !pixmapCache) {
ThemeConfig config;
pixmapCache = new KImageCache("plasma_theme_" + themeName, config.themeCacheKb() * 1024);
if (themeName != systemColorsTheme) {
//check for expired cache
// FIXME: when using the system colors, if they change while the application is not running
// the cache should be dropped; we need a way to detect system color change when the
// application is not running.
QFile f(QStandardPaths::locate(QStandardPaths::GenericDataLocation, "desktoptheme/" + themeName + "/metadata.desktop"));
QFileInfo info(f);
if (info.lastModified().toTime_t() > uint(pixmapCache->lastModifiedTime())) {
pixmapCache->clear();
}
}
}
return cacheTheme;
}
void ThemePrivate::onAppExitCleanup()
{
pixmapsToCache.clear();
delete pixmapCache;
pixmapCache = 0;
cacheTheme = false;
}
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QString ThemePrivate::findInTheme(const QString &image, const QString &theme, bool cache)
{
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if (cache && discoveries.contains(image)) {
return discoveries[image];
}
QString search;
if (locolor) {
search = QLatin1Literal("desktoptheme/") % theme % QLatin1Literal("/locolor/") % image;
search = QStandardPaths::locate(QStandardPaths::GenericDataLocation, search);
} else if (!compositingActive) {
search = QLatin1Literal("desktoptheme/") % theme % QLatin1Literal("/opaque/") % image;
search = QStandardPaths::locate(QStandardPaths::GenericDataLocation, search);
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} else if (KWindowEffects::isEffectAvailable(KWindowEffects::BlurBehind)) {
search = QLatin1Literal("desktoptheme/") % theme % QLatin1Literal("/translucent/") % image;
search = QStandardPaths::locate(QStandardPaths::GenericDataLocation, search);
}
//not found or compositing enabled
if (search.isEmpty()) {
search = QLatin1Literal("desktoptheme/") % theme % QLatin1Char('/') % image;
search = QStandardPaths::locate(QStandardPaths::GenericDataLocation, search);
}
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if (cache && !search.isEmpty()) {
discoveries.insert(image, search);
}
return search;
}
void ThemePrivate::compositingChanged(bool active)
{
#if HAVE_X11
if (compositingActive != active) {
compositingActive = active;
//kDebug() << QTime::currentTime();
scheduleThemeChangeNotification(PixmapCache | SvgElementsCache);
}
#endif
}
void ThemePrivate::discardCache(CacheTypes caches)
{
if (caches & PixmapCache) {
pixmapsToCache.clear();
saveTimer->stop();
if (pixmapCache) {
pixmapCache->clear();
}
} else {
// This deletes the object but keeps the on-disk cache for later use
delete pixmapCache;
pixmapCache = 0;
}
cachedStyleSheets.clear();
if (caches & SvgElementsCache) {
discoveries.clear();
invalidElements.clear();
if (svgElementsCache) {
QFile f(svgElementsCache->name());
svgElementsCache = 0;
f.remove();
}
const QString svgElementsFile = QStandardPaths::writableLocation(QStandardPaths::GenericCacheLocation) + QLatin1Char('/') + "plasma-svgelements-" + themeName;
svgElementsCache = KSharedConfig::openConfig(svgElementsFile);
}
}
void ThemePrivate::scheduledCacheUpdate()
{
if (useCache()) {
QHashIterator<QString, QPixmap> it(pixmapsToCache);
while (it.hasNext()) {
it.next();
pixmapCache->insertPixmap(idsToCache[it.key()], it.value());
}
}
pixmapsToCache.clear();
keysToCache.clear();
idsToCache.clear();
}
void ThemePrivate::colorsChanged()
{
colorScheme = KColorScheme(QPalette::Active, KColorScheme::Window, colors);
buttonColorScheme = KColorScheme(QPalette::Active, KColorScheme::Button, colors);
viewColorScheme = KColorScheme(QPalette::Active, KColorScheme::View, colors);
scheduleThemeChangeNotification(PixmapCache);
}
void ThemePrivate::blurBehindChanged(bool blur)
{
if (blurActive != blur) {
blurActive = blur;
scheduleThemeChangeNotification(PixmapCache | SvgElementsCache);
}
}
void ThemePrivate::scheduleThemeChangeNotification(CacheTypes caches)
{
cachesToDiscard |= caches;
updateNotificationTimer->start();
}
void ThemePrivate::notifyOfChanged()
{
//kDebug() << cachesToDiscard;
discardCache(cachesToDiscard);
cachesToDiscard = NoCache;
emit q->themeChanged();
}
const QString ThemePrivate::processStyleSheet(const QString &css)
{
QString stylesheet;
if (css.isEmpty()) {
stylesheet = cachedStyleSheets.value(DEFAULTSTYLE);
if (stylesheet.isEmpty()) {
stylesheet = QString("\n\
body {\n\
color: %textcolor;\n\
font-size: %fontsize;\n\
font-family: %fontfamily;\n\
}\n\
a:active { color: %activatedlink; }\n\
a:link { color: %link; }\n\
a:visited { color: %visitedlink; }\n\
a:hover { color: %hoveredlink; text-decoration: none; }\n\
");
stylesheet = processStyleSheet(stylesheet);
cachedStyleSheets.insert(DEFAULTSTYLE, stylesheet);
}
return stylesheet;
} else if (css == "SVG") {
stylesheet = cachedStyleSheets.value(SVGSTYLE);
if (stylesheet.isEmpty()) {
QString skel = ".ColorScheme-%1{color:%2;}";
stylesheet += skel.arg("Text","%textcolor");
stylesheet += skel.arg("Background","%backgroundcolor");
stylesheet += skel.arg("ButtonText","%buttontextcolor");
stylesheet += skel.arg("ButtonBackground","%buttonbackgroundcolor");
stylesheet += skel.arg("ButtonHover","%buttonhovercolor");
stylesheet += skel.arg("ButtonFocus","%buttonfocuscolor");
stylesheet += skel.arg("ViewText","%viewtextcolor");
stylesheet += skel.arg("ViewBackground","%viewbackgroundcolor");
stylesheet += skel.arg("ViewHover","%viewhovercolor");
stylesheet += skel.arg("ViewFocus","%viewfocuscolor");
stylesheet = processStyleSheet(stylesheet);
cachedStyleSheets.insert(SVGSTYLE, stylesheet);
}
return stylesheet;
} else {
stylesheet = css;
}
QHash<QString, QString> elements;
// If you add elements here, make sure their names are sufficiently unique to not cause
// clashes between element keys
elements["%textcolor"] = q->color(Theme::TextColor).name();
elements["%backgroundcolor"] = q->color(Theme::BackgroundColor).name();
elements["%visitedlink"] = q->color(Theme::VisitedLinkColor).name();
elements["%activatedlink"] = q->color(Theme::HighlightColor).name();
elements["%hoveredlink"] = q->color(Theme::HighlightColor).name();
elements["%link"] = q->color(Theme::LinkColor).name();
elements["%buttontextcolor"] = q->color(Theme::ButtonTextColor).name();
elements["%buttonbackgroundcolor"] = q->color(Theme::ButtonBackgroundColor).name();
elements["%buttonhovercolor"] = q->color(Theme::ButtonHoverColor).name();
elements["%buttonfocuscolor"] = q->color(Theme::ButtonFocusColor).name();
elements["%viewtextcolor"] = q->color(Theme::ViewTextColor).name();
elements["%viewbackgroundcolor"] = q->color(Theme::ViewBackgroundColor).name();
elements["%viewhovercolor"] = q->color(Theme::ViewHoverColor).name();
elements["%viewfocuscolor"] = q->color(Theme::ViewFocusColor).name();
QFont font = q->font(Theme::DefaultFont);
elements["%fontsize"] = QString("%1pt").arg(font.pointSize());
elements["%fontfamily"] = font.family().split('[').first();
elements["%smallfontsize"] = QString("%1pt").arg(KGlobalSettings::smallestReadableFont().pointSize());
QHash<QString, QString>::const_iterator it = elements.constBegin();
QHash<QString, QString>::const_iterator itEnd = elements.constEnd();
for ( ; it != itEnd; ++it) {
stylesheet.replace(it.key(), it.value());
}
return stylesheet;
}
class ThemeSingleton
{
public:
ThemeSingleton()
{
self.d->isDefault = true;
//FIXME: if/when kconfig gets change notification, this will be unnecessary
KDirWatch::self()->addFile(QStandardPaths::writableLocation(QStandardPaths::ConfigLocation) + QLatin1Char('/') + ThemePrivate::themeRcFile);
QObject::connect(KDirWatch::self(), SIGNAL(created(QString)), &self, SLOT(settingsFileChanged(QString)));
QObject::connect(KDirWatch::self(), SIGNAL(dirty(QString)), &self, SLOT(settingsFileChanged(QString)));
}
Theme self;
};
Q_GLOBAL_STATIC(ThemeSingleton, privateThemeSelf)
Theme *Theme::defaultTheme()
{
return &privateThemeSelf()->self;
}
Theme::Theme(QObject *parent)
: QObject(parent),
d(new ThemePrivate(this))
{
settingsChanged();
if (QCoreApplication::instance()) {
connect(QCoreApplication::instance(), SIGNAL(aboutToQuit()),
this, SLOT(onAppExitCleanup()));
}
}
Theme::Theme(const QString &themeName, QObject *parent)
: QObject(parent),
d(new ThemePrivate(this))
{
// turn off caching so we don't accidently trigger unnecessary disk activity at this point
bool useCache = d->cacheTheme;
d->cacheTheme = false;
setThemeName(themeName);
d->cacheTheme = useCache;
if (QCoreApplication::instance()) {
connect(QCoreApplication::instance(), SIGNAL(aboutToQuit()),
this, SLOT(onAppExitCleanup()));
}
}
Theme::~Theme()
{
if (d->svgElementsCache) {
QHashIterator<QString, QSet<QString> > it(d->invalidElements);
while (it.hasNext()) {
it.next();
KConfigGroup imageGroup(d->svgElementsCache, it.key());
imageGroup.writeEntry("invalidElements", it.value().toList()); //FIXME: add QSet support to KConfig
}
}
d->onAppExitCleanup();
delete d;
}
KPluginInfo::List Theme::listThemeInfo()
{
const QStringList themes = KGlobal::dirs()->findAllResources("data", "desktoptheme/*/metadata.desktop", KStandardDirs::NoDuplicates);
return KPluginInfo::fromFiles(themes);
}
void ThemePrivate::settingsFileChanged(const QString &file)
{
if (file.endsWith(themeRcFile)) {
config().config()->reparseConfiguration();
q->settingsChanged();
}
}
void Theme::settingsChanged()
{
KConfigGroup cg = d->config();
d->setThemeName(cg.readEntry("name", ThemePrivate::defaultTheme), false);
cg = KConfigGroup(cg.config(), "PlasmaToolTips");
d->toolTipDelay = cg.readEntry("Delay", 700);
}
void Theme::setThemeName(const QString &themeName)
{
d->setThemeName(themeName, true);
}
void ThemePrivate::processWallpaperSettings(KConfigBase *metadata)
{
if (!defaultWallpaperTheme.isEmpty() && defaultWallpaperTheme != DEFAULT_WALLPAPER_THEME) {
return;
}
KConfigGroup cg;
if (metadata->hasGroup("Wallpaper")) {
// we have a theme color config, so let's also check to see if
// there is a wallpaper defined in there.
cg = KConfigGroup(metadata, "Wallpaper");
} else {
// since we didn't find an entry in the theme, let's look in the main
// theme config
cg = config();
}
defaultWallpaperTheme = cg.readEntry("defaultWallpaperTheme", DEFAULT_WALLPAPER_THEME);
defaultWallpaperSuffix = cg.readEntry("defaultFileSuffix", DEFAULT_WALLPAPER_SUFFIX);
defaultWallpaperWidth = cg.readEntry("defaultWidth", DEFAULT_WALLPAPER_WIDTH);
defaultWallpaperHeight = cg.readEntry("defaultHeight", DEFAULT_WALLPAPER_HEIGHT);
}
void ThemePrivate::setThemeName(const QString &tempThemeName, bool writeSettings)
{
//kDebug() << tempThemeName;
QString theme = tempThemeName;
if (theme.isEmpty() || theme == themeName) {
// let's try and get the default theme at least
if (themeName.isEmpty()) {
theme = ThemePrivate::defaultTheme;
} else {
return;
}
}
// we have one special theme: essentially a dummy theme used to cache things with
// the system colors.
bool realTheme = theme != systemColorsTheme;
if (realTheme) {
QString themePath = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QLatin1Literal("desktoptheme/") % theme % QLatin1Char('/'));
if (themePath.isEmpty() && themeName.isEmpty()) {
themePath = QStandardPaths::locate(QStandardPaths::GenericDataLocation, "desktoptheme/default", QStandardPaths::LocateDirectory);
if (themePath.isEmpty()) {
return;
}
theme = ThemePrivate::defaultTheme;
}
}
// check again as ThemePrivate::defaultTheme might be empty
if (themeName == theme) {
return;
}
themeName = theme;
// load the color scheme config
const QString colorsFile = realTheme ? QStandardPaths::locate(QStandardPaths::GenericDataLocation, QLatin1Literal("desktoptheme/") % theme % QLatin1Literal("/colors"))
: QString();
//kDebug() << "we're going for..." << colorsFile << "*******************";
// load the wallpaper settings, if any
if (realTheme) {
const QString metadataPath(QStandardPaths::locate(QStandardPaths::GenericDataLocation, QLatin1Literal("desktoptheme/") % theme % QLatin1Literal("/metadata.desktop")));
KConfig metadata(metadataPath);
processWallpaperSettings(&metadata);
KConfigGroup cg(&metadata, "Settings");
useNativeWidgetStyle = cg.readEntry("UseNativeWidgetStyle", false);
QString fallback = cg.readEntry("FallbackTheme", QString());
fallbackThemes.clear();
while (!fallback.isEmpty() && !fallbackThemes.contains(fallback)) {
fallbackThemes.append(fallback);
QString metadataPath(QStandardPaths::locate(QStandardPaths::GenericDataLocation, QLatin1Literal("desktoptheme/") % theme % QLatin1Literal("/metadata.desktop")));
KConfig metadata(metadataPath);
KConfigGroup cg(&metadata, "Settings");
fallback = cg.readEntry("FallbackTheme", QString());
}
if (!fallbackThemes.contains("oxygen")) {
fallbackThemes.append("oxygen");
}
if (!fallbackThemes.contains(ThemePrivate::defaultTheme)) {
fallbackThemes.append(ThemePrivate::defaultTheme);
}
foreach (const QString &theme, fallbackThemes) {
QString metadataPath(QStandardPaths::locate(QStandardPaths::GenericDataLocation, QLatin1Literal("desktoptheme/") % theme % QLatin1Literal("/metadata.desktop")));
KConfig metadata(metadataPath);
processWallpaperSettings(&metadata);
}
}
if (colorsFile.isEmpty()) {
colors = 0;
QObject::connect(KGlobalSettings::self(), SIGNAL(kdisplayPaletteChanged()),
q, SLOT(colorsChanged()), Qt::UniqueConnection);
} else {
QObject::disconnect(KGlobalSettings::self(), SIGNAL(kdisplayPaletteChanged()),
q, SLOT(colorsChanged()));
colors = KSharedConfig::openConfig(colorsFile);
}
colorScheme = KColorScheme(QPalette::Active, KColorScheme::Window, colors);
buttonColorScheme = KColorScheme(QPalette::Active, KColorScheme::Button, colors);
viewColorScheme = KColorScheme(QPalette::Active, KColorScheme::View, colors);
hasWallpapers = KStandardDirs::exists(QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation) + QLatin1Char('/') + QLatin1Literal("desktoptheme/") % theme % QLatin1Literal("/wallpapers/"));
if (realTheme && isDefault && writeSettings) {
// we're the default theme, let's save our state
KConfigGroup &cg = config();
if (ThemePrivate::defaultTheme == themeName) {
cg.deleteEntry("name");
} else {
cg.writeEntry("name", themeName);
}
cg.sync();
}
scheduleThemeChangeNotification(SvgElementsCache);
}
QString Theme::themeName() const
{
return d->themeName;
}
QString Theme::imagePath(const QString &name) const
{
// look for a compressed svg file in the theme
if (name.contains("../") || name.isEmpty()) {
// we don't support relative paths
//kDebug() << "Theme says: bad image path " << name;
return QString();
}
const QString svgzName = name % QLatin1Literal(".svgz");
QString path = d->findInTheme(svgzName, d->themeName);
if (path.isEmpty()) {
// try for an uncompressed svg file
const QString svgName = name % QLatin1Literal(".svg");
path = d->findInTheme(svgName, d->themeName);
// search in fallback themes if necessary
for (int i = 0; path.isEmpty() && i < d->fallbackThemes.count(); ++i) {
if (d->themeName == d->fallbackThemes[i]) {
continue;
}
// try a compressed svg file in the fallback theme
path = d->findInTheme(svgzName, d->fallbackThemes[i]);
if (path.isEmpty()) {
// try an uncompressed svg file in the fallback theme
path = d->findInTheme(svgName, d->fallbackThemes[i]);
}
}
}
/*
if (path.isEmpty()) {
#ifndef NDEBUG
kDebug() << "Theme says: bad image path " << name;
#endif
}
*/
return path;
}
QString Theme::styleSheet(const QString &css) const
{
return d->processStyleSheet(css);
}
QString Theme::wallpaperPath(const QSize &size) const
{
QString fullPath;
QString image = d->defaultWallpaperTheme;
image.append("/contents/images/%1x%2").append(d->defaultWallpaperSuffix);
QString defaultImage = image.arg(d->defaultWallpaperWidth).arg(d->defaultWallpaperHeight);
if (size.isValid()) {
// try to customize the paper to the size requested
//TODO: this should do better than just fallback to the default size.
// a "best fit" matching would be far better, so we don't end
// up returning a 1920x1200 wallpaper for a 640x480 request ;)
image = image.arg(size.width()).arg(size.height());
} else {
image = defaultImage;
}
//TODO: the theme's wallpaper overrides regularly installed wallpapers.
// should it be possible for user installed (e.g. locateLocal) wallpapers
// to override the theme?
if (d->hasWallpapers) {
// check in the theme first
fullPath = d->findInTheme(QLatin1Literal("wallpapers/") % image, d->themeName);
if (fullPath.isEmpty()) {
fullPath = d->findInTheme(QLatin1Literal("wallpapers/") % defaultImage, d->themeName);
}
}
if (fullPath.isEmpty()) {
// we failed to find it in the theme, so look in the standard directories
//kDebug() << "looking for" << image;
fullPath = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QLatin1String("wallpapers/") + image);
}
if (fullPath.isEmpty()) {
// we still failed to find it in the theme, so look for the default in
// the standard directories
//kDebug() << "looking for" << defaultImage;
fullPath = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QLatin1String("wallpapers/") + defaultImage);
if (fullPath.isEmpty()) {
#ifndef NDEBUG
kDebug() << "exhausted every effort to find a wallpaper.";
#endif
}
}
return fullPath;
}
bool Theme::currentThemeHasImage(const QString &name) const
{
if (name.contains("../")) {
// we don't support relative paths
return false;
}
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return !(d->findInTheme(name % QLatin1Literal(".svgz"), d->themeName, false).isEmpty()) ||
!(d->findInTheme(name % QLatin1Literal(".svg"), d->themeName, false).isEmpty());
}
KSharedConfigPtr Theme::colorScheme() const
{
return d->colors;
}
QColor Theme::color(ColorRole role) const
{
switch (role) {
case TextColor:
return d->colorScheme.foreground(KColorScheme::NormalText).color();
case HighlightColor:
return d->colorScheme.decoration(KColorScheme::HoverColor).color();
case BackgroundColor:
return d->colorScheme.background(KColorScheme::NormalBackground).color();
case ButtonTextColor:
return d->buttonColorScheme.foreground(KColorScheme::NormalText).color();
case ButtonBackgroundColor:
return d->buttonColorScheme.background(KColorScheme::NormalBackground).color();
case ButtonHoverColor:
return d->buttonColorScheme.decoration(KColorScheme::HoverColor).color();
case ButtonFocusColor:
return d->buttonColorScheme.decoration(KColorScheme::FocusColor).color();
case ViewTextColor:
return d->viewColorScheme.foreground(KColorScheme::NormalText).color();
case ViewBackgroundColor:
return d->viewColorScheme.background(KColorScheme::NormalBackground).color();
case ViewHoverColor:
return d->viewColorScheme.decoration(KColorScheme::HoverColor).color();
case ViewFocusColor:
return d->viewColorScheme.decoration(KColorScheme::FocusColor).color();
case LinkColor:
return d->viewColorScheme.foreground(KColorScheme::LinkText).color();
case VisitedLinkColor:
return d->viewColorScheme.foreground(KColorScheme::VisitedText).color();
}
return QColor();
}
void Theme::setFont(const QFont &font, FontRole role)
{
Q_UNUSED(role)
d->generalFont = font;
}
QFont Theme::font(FontRole role) const
{
switch (role) {
case DesktopFont: {
KConfigGroup cg(KSharedConfig::openConfig(), "General");
return cg.readEntry("desktopFont", d->generalFont);
}
break;
case DefaultFont:
default:
return d->generalFont;
break;
case SmallestFont:
return KGlobalSettings::smallestReadableFont();
break;
}
return d->generalFont;
}
QFontMetrics Theme::fontMetrics() const
{
//TODO: allow this to be overridden with a plasma specific font?
return QFontMetrics(d->generalFont);
}
bool Theme::windowTranslucencyEnabled() const
{
return d->compositingActive;
}
void Theme::setUseGlobalSettings(bool useGlobal)
{
if (d->useGlobal == useGlobal) {
return;
}
d->useGlobal = useGlobal;
d->cfg = KConfigGroup();
d->themeName.clear();
settingsChanged();
}
bool Theme::useGlobalSettings() const
{
return d->useGlobal;
}
bool Theme::useNativeWidgetStyle() const
{
return d->useNativeWidgetStyle;
}
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bool Theme::findInCache(const QString &key, QPixmap &pix, unsigned int lastModified)
{
2011-05-20 08:23:43 +02:00
if (lastModified != 0 && d->useCache() && lastModified > uint(d->pixmapCache->lastModifiedTime())) {
return false;
}
if (d->useCache()) {
const QString id = d->keysToCache.value(key);
if (d->pixmapsToCache.contains(id)) {
pix = d->pixmapsToCache.value(id);
return !pix.isNull();
}
QPixmap temp;
if (d->pixmapCache->findPixmap(key, &temp) && !temp.isNull()) {
pix = temp;
return true;
}
}
return false;
}
void Theme::insertIntoCache(const QString& key, const QPixmap& pix)
{
if (d->useCache()) {
d->pixmapCache->insertPixmap(key, pix);
}
}
void Theme::insertIntoCache(const QString& key, const QPixmap& pix, const QString& id)
{
if (d->useCache()) {
d->pixmapsToCache.insert(id, pix);
if (d->idsToCache.contains(id)) {
d->keysToCache.remove(d->idsToCache[id]);
}
d->keysToCache.insert(key, id);
d->idsToCache.insert(id, key);
d->saveTimer->start();
}
}
bool Theme::findInRectsCache(const QString &image, const QString &element, QRectF &rect) const
{
if (!d->svgElementsCache) {
return false;
}
KConfigGroup imageGroup(d->svgElementsCache, image);
rect = imageGroup.readEntry(element % QLatin1Literal("Size"), QRectF());
if (rect.isValid()) {
return true;
}
//Name starting by _ means the element is empty and we're asked for the size of
//the whole image, so the whole image is never invalid
if (element.indexOf('_') <= 0) {
return false;
}
bool invalid = false;
QHash<QString, QSet<QString> >::iterator it = d->invalidElements.find(image);
if (it == d->invalidElements.end()) {
QSet<QString> elements = imageGroup.readEntry("invalidElements", QStringList()).toSet();
d->invalidElements.insert(image, elements);
invalid = elements.contains(element);
} else {
invalid = it.value().contains(element);
}
return invalid;
}
QStringList Theme::listCachedRectKeys(const QString &image) const
{
if (!d->svgElementsCache) {
return QStringList();
}
KConfigGroup imageGroup(d->svgElementsCache, image);
QStringList keys = imageGroup.keyList();
QMutableListIterator<QString> i(keys);
while (i.hasNext()) {
QString key = i.next();
if (key.endsWith("Size")) {
// The actual cache id used from outside doesn't end on "Size".
key.resize(key.size() - 4);
i.setValue(key);
} else {
i.remove();
}
}
return keys;
}
void Theme::insertIntoRectsCache(const QString& image, const QString &element, const QRectF &rect)
{
if (!d->svgElementsCache) {
return;
}
if (rect.isValid()) {
KConfigGroup imageGroup(d->svgElementsCache, image);
imageGroup.writeEntry(element % QLatin1Literal("Size"), rect);
} else {
QHash<QString, QSet<QString> >::iterator it = d->invalidElements.find(image);
if (it == d->invalidElements.end()) {
d->invalidElements[image].insert(element);
} else if (!it.value().contains(element)) {
if (it.value().count() > 1000) {
it.value().erase(it.value().begin());
}
it.value().insert(element);
}
}
}
void Theme::invalidateRectsCache(const QString& image)
{
if (d->svgElementsCache) {
KConfigGroup imageGroup(d->svgElementsCache, image);
imageGroup.deleteGroup();
}
d->invalidElements.remove(image);
}
void Theme::releaseRectsCache(const QString &image)
{
QHash<QString, QSet<QString> >::iterator it = d->invalidElements.find(image);
if (it != d->invalidElements.end()) {
if (!d->svgElementsCache) {
KConfigGroup imageGroup(d->svgElementsCache, it.key());
imageGroup.writeEntry("invalidElements", it.value().toList());
}
d->invalidElements.erase(it);
}
}
void Theme::setCacheLimit(int kbytes)
{
Q_UNUSED(kbytes)
if (d->useCache()) {
;
// Too late for you bub.
// d->pixmapCache->setCacheLimit(kbytes);
}
}
QUrl Theme::homepage() const
{
const QString metadataPath(QStandardPaths::locate(QStandardPaths::GenericDataLocation, QLatin1Literal("desktoptheme/") % d->themeName % QLatin1Literal("/metadata.desktop")));
KConfig metadata(metadataPath);
KConfigGroup brandConfig(&metadata, "Branding");
return brandConfig.readEntry("homepage", QUrl("http://www.kde.org"));
}
int Theme::toolTipDelay() const
{
return d->toolTipDelay;
}
}
#include "moc_theme.cpp"