plasma-framework/private/packages.cpp
Aaron J. Seigo fa846c54ba make the wallpaper packages a bit smarter
svn path=/trunk/KDE/kdelibs/; revision=950409
2009-04-07 05:43:44 +00:00

294 lines
11 KiB
C++

/******************************************************************************
* Copyright 2007-2009 by Aaron Seigo <aseigo@kde.org> *
* *
* This library 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 of the License, or (at your option) any later version. *
* *
* This library 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 *
* Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public License *
* along with this library; see the file COPYING.LIB. If not, write to *
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, *
* Boston, MA 02110-1301, USA. *
*******************************************************************************/
#include "plasma/private/packages_p.h"
#include <math.h>
#include <float.h> // FLT_MAX
#include <QFileInfo>
#include <kconfiggroup.h>
#include <kdesktopfile.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <knewstuff2/engine.h>
#include "plasma/private/wallpaper_p.h"
namespace Plasma
{
PlasmoidPackage::PlasmoidPackage(QObject *parent)
: Plasma::PackageStructure(parent, QString("Plasmoid"))
{
addDirectoryDefinition("images", "images/", i18n("Images"));
QStringList mimetypes;
mimetypes << "image/svg+xml" << "image/png" << "image/jpeg";
setMimetypes("images", mimetypes);
addDirectoryDefinition("config", "config/", i18n("Configuration Definitions"));
mimetypes.clear();
mimetypes << "text/xml";
setMimetypes("config", mimetypes);
setMimetypes("configui", mimetypes);
addDirectoryDefinition("ui", "ui", i18n("User Interface"));
setMimetypes("ui", mimetypes);
addDirectoryDefinition("scripts", "code", i18n("Executable Scripts"));
mimetypes.clear();
mimetypes << "text/*";
setMimetypes("scripts", mimetypes);
addFileDefinition("mainconfigui", "ui/config.ui", i18n("Main Config UI File"));
addFileDefinition("mainconfigxml", "config/main.xml", i18n("Configuration XML file"));
addFileDefinition("mainscript", "code/main", i18n("Main Script File"));
setRequired("mainscript", true);
}
void PlasmoidPackage::pathChanged()
{
KDesktopFile config(path() + "/metadata.desktop");
KConfigGroup cg = config.desktopGroup();
QString mainScript = cg.readEntry("X-Plasma-MainScript", QString());
if (!mainScript.isEmpty()) {
addFileDefinition("mainscript", mainScript, i18n("Main Script File"));
setRequired("mainscript", true);
}
}
void PlasmoidPackage::createNewWidgetBrowser(QWidget *parent)
{
KNS::Engine engine(0);
if (engine.init("plasmoids.knsrc")) {
KNS::Entry::List entries = engine.downloadDialogModal(parent);
foreach (KNS::Entry *entry, entries) {
if (entry->status() != KNS::Entry::Installed) {
continue;
}
// install the packges!
foreach (const QString &package, entry->installedFiles()) {
if (!installPackage(package, defaultPackageRoot())) {
kDebug() << "FAIL! on install of" << package;
KMessageBox::error(0, i18n("Installation of <b>%1</b> failed.", package),
i18n("Installation Failed"));
}
}
}
}
emit newWidgetBrowserFinished();
}
ThemePackage::ThemePackage(QObject *parent)
: Plasma::PackageStructure(parent, QString("Plasma Theme"))
{
addDirectoryDefinition("dialogs", "dialogs/", i18n("Images for dialogs"));
addFileDefinition("dialogs/background", "dialogs/background.svg",
i18n("Generic dialog background"));
addFileDefinition("dialogs/shutdowndialog", "dialogs/shutdowndialog.svg",
i18n("Theme for the logout dialog"));
addDirectoryDefinition("wallpapers", "wallpapers/", i18n("Wallpaper packages"));
addDirectoryDefinition("widgets", "widgets/", i18n("Images for widgets"));
addFileDefinition("widgets/background", "widgets/background.svg",
i18n("Background image for widgets"));
addFileDefinition("widgets/clock", "widgets/clock.svg",
i18n("Analog clock face"));
addFileDefinition("widgets/panel-background", "widgets/panel-background.svg",
i18n("Background image for panels"));
addFileDefinition("widgets/plot-background", "widgets/plot-background.svg",
i18n("Background for graphing widgets"));
addFileDefinition("widgets/tooltip", "widgets/tooltip.svg",
i18n("Background image for tooltips"));
addDirectoryDefinition("opaque/dialogs", "opaque/dialogs/", i18n("Opaque images for dialogs"));
addFileDefinition("opaque/dialogs/background", "opaque/dialogs/background.svg",
i18n("Opaque generic dialog background"));
addFileDefinition("opaque/dialogs/shutdowndialog", "opaque/dialogs/shutdowndialog.svg",
i18n("Opaque theme for the logout dialog"));
addDirectoryDefinition("opaque/widgets", "opaque/widgets/", i18n("Opaque images for widgets"));
addFileDefinition("opaque/widgets/panel-background", "opaque/widgets/panel-background.svg",
i18n("Opaque background image for panels"));
addFileDefinition("opaque/widgets/tooltip", "opaque/widgets/tooltip.svg",
i18n("Opaque background image for tooltips"));
addDirectoryDefinition("locolor/dialogs", "locolor/dialogs/",
i18n("Low color images for dialogs"));
addFileDefinition("locolor/dialogs/background", "locolor/dialogs/background.svg",
i18n("Low color generic dialog background"));
addFileDefinition("locolor/dialogs/shutdowndialog", "locolor/dialogs/shutdowndialog.svg",
i18n("Low color theme for the logout dialog"));
addDirectoryDefinition("locolor/widgets", "locolor/widgets/", i18n("Images for widgets"));
addFileDefinition("locolor/widgets/background", "locolor/widgets/background.svg",
i18n("Low color background image for widgets"));
addFileDefinition("locolor/widgets/clock", "locolor/widgets/clock.svg",
i18n("Low color analog clock face"));
addFileDefinition("locolor/widgets/panel-background", "locolor/widgets/panel-background.svg",
i18n("Low color background image for panels"));
addFileDefinition("locolor/widgets/plot-background", "locolor/widgets/plot-background.svg",
i18n("Low color background for graphing widgets"));
addFileDefinition("locolor/widgets/tooltip", "locolor/widgets/tooltip.svg",
i18n("Low color background image for tooltips"));
addFileDefinition("colors", "colors", i18n("KColorScheme configuration file"));
QStringList mimetypes;
mimetypes << "image/svg+xml";
setDefaultMimetypes(mimetypes);
}
WallpaperPackage::WallpaperPackage(Wallpaper *paper, QObject *parent)
: PackageStructure(parent, "Background"),
m_paper(paper)
{
QStringList mimetypes;
mimetypes << "image/svg" << "image/png" << "image/jpeg" << "image/jpg";
setDefaultMimetypes(mimetypes);
addDirectoryDefinition("images", "images/", i18n("Images"));
addFileDefinition("screenshot", "screenshot.png", i18n("Screenshot"));
setAllowExternalPaths(true);
if (m_paper) {
connect(m_paper, SIGNAL(destroyed(QObject*)), this, SLOT(paperDestroyed()));
}
}
void WallpaperPackage::pathChanged()
{
static bool guard = false;
if (guard) {
return;
}
guard = true;
QFileInfo info(path());
if (info.isDir()) {
findBestPaper();
} else {
// dirty trick to support having a file passed in instead of a directory
addFileDefinition("preferred", info.fileName(), i18n("Recommended wallpaper file"));
setContentsPrefix(QString());
kDebug() << "changing" << path() << "to" << info.path();
setPath(info.path());
}
guard = false;
}
QSize WallpaperPackage::resSize(const QString &str) const
{
int index = str.indexOf('x');
if (index != -1) {
return QSize(str.left(index).toInt(),
str.mid(index + 1).toInt());
} else {
return QSize();
}
}
void WallpaperPackage::findBestPaper()
{
QStringList images = entryList("images");
if (images.empty()) {
return;
}
//kDebug() << "wanted" << size;
// choose the nearest resolution
float best = FLT_MAX;
const QSize size = m_paper ? m_paper->boundingRect().size().toSize() : QSize(100000, 100000);
const Wallpaper::ResizeMethod method = m_paper ? m_paper->d->lastResizeMethod
: Wallpaper::ScaledResize;
QString bestImage;
foreach (const QString &entry, images) {
QSize candidate = resSize(QFileInfo(entry).baseName());
if (candidate == QSize()) {
continue;
}
double dist = distance(candidate, size, method);
//kDebug() << "candidate" << candidate << "distance" << dist;
if (bestImage.isEmpty() || dist < best) {
bestImage = entry;
best = dist;
//kDebug() << "best" << bestImage;
if (dist == 0) {
break;
}
}
}
//kDebug() << "best image" << bestImage;
addFileDefinition("preferred", path("images") + bestImage, i18n("Recommended wallpaper file"));
}
float WallpaperPackage::distance(const QSize& size, const QSize& desired,
Plasma::Wallpaper::ResizeMethod method) const
{
// compute difference of areas
float delta = size.width() * size.height() -
desired.width() * desired.height();
// scale down to about 1.0
delta /= ((desired.width() * desired.height())+(size.width() * size.height()))/2;
switch (method) {
case Plasma::Wallpaper::ScaledResize: {
// Consider first the difference in aspect ratio,
// then in areas. Prefer scaling down.
float deltaRatio = 1.0;
if (size.height() > 0 && desired.height() > 0) {
deltaRatio = float(size.width()) / float(size.height()) -
float(desired.width()) / float(desired.height());
}
return fabs(deltaRatio) * 3.0 + (delta >= 0.0 ? delta : -delta + 5.0);
}
case Plasma::Wallpaper::ScaledAndCroppedResize:
// Difference of areas, slight preference to scale down
return delta >= 0.0 ? delta : -delta + 2.0;
default:
// Difference in areas
return fabs(delta);
}
}
void WallpaperPackage::paperDestroyed()
{
m_paper = 0;
}
} // namespace Plasma
#include "packages_p.moc"