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/*
This file is part of the KDE libraries
Copyright (c) 2007 Thiago Macieira <thiago@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 <kconfiggroup.h>
#include <QtCore/QMutableStringListIterator>
#include <QColor>
#include <QDebug>
#include <QFont>
#include <kconfiggroup_p.h>
/**
* Try to read a GUI type from config group @p cg at key @p key.
* @p input is the default value and also indicates the type to be read.
* @p output is to be set with the value that has been read.
*
* @returns true if something was handled (even if output was set to clear or default)
* or false if nothing was handled (e.g., Core type)
*/
static bool readEntryGui(const QByteArray& data, const char* key, const QVariant &input,
QVariant &output)
{
const QString errString = QString::fromLatin1("\"%1\" - conversion from \"%3\" to %2 failed")
.arg(QLatin1String(key))
.arg(QLatin1String(QVariant::typeToName(input.type())))
.arg(QLatin1String(data.constData()));
const QString formatError = QString::fromLatin1(" (wrong format: expected '%1' items, read '%2')");
// set in case of failure
output = input;
switch (input.type()) {
case QVariant::Color: {
if (data.isEmpty() || data == "invalid") {
output = QColor(); // return what was stored
return true;
} else if (data.at(0) == '#') {
QColor col;
col.setNamedColor(QString::fromUtf8(data.constData(), data.length()));
output = col;
return true;
} else if (!data.contains(',')) {
QColor col;
col.setNamedColor(QString::fromUtf8(data.constData(), data.length()));
if (!col.isValid())
qCritical() << qPrintable(errString);
output = col;
return true;
} else {
const QList<QByteArray> list = data.split(',');
const int count = list.count();
if (count != 3 && count != 4) {
qCritical() << qPrintable(errString) << qPrintable(formatError.arg(QLatin1String("3' or '4")).arg(count));
return true; // return default
}
int temp[4];
// bounds check components
for(int i = 0; i < count; i++) {
bool ok;
const int j = temp[i] = list.at(i).toInt(&ok);
if (!ok) { // failed to convert to int
qCritical() << qPrintable(errString) << " (integer conversion failed)";
return true; // return default
}
if (j < 0 || j > 255) {
static const char *const components[6] = {
"red", "green", "blue", "alpha"
};
const QString boundsError = QLatin1String(" (bounds error: %1 component %2)");
qCritical() << qPrintable(errString)
<< qPrintable(boundsError.arg(QLatin1String(components[i])).arg(j < 0? QLatin1String("< 0"): QLatin1String("> 255")));
return true; // return default
}
}
QColor aColor(temp[0], temp[1], temp[2]);
if (count == 4)
aColor.setAlpha(temp[3]);
if (aColor.isValid())
output = aColor;
else
qCritical() << qPrintable(errString);
return true;
}
}
case QVariant::Font: {
QVariant tmp = QString::fromUtf8(data.constData(), data.length());
if (tmp.convert(QVariant::Font))
output = tmp;
else
qCritical() << qPrintable(errString);
return true;
}
case QVariant::Pixmap:
case QVariant::Image:
case QVariant::Brush:
case QVariant::Palette:
case QVariant::Icon:
case QVariant::Region:
case QVariant::Bitmap:
case QVariant::Cursor:
case QVariant::SizePolicy:
case QVariant::Pen:
// we may want to handle these in the future
default:
break;
}
return false; // not handled
}
/**
* Try to write a GUI type @p prop to config group @p cg at key @p key.
*
* @returns true if something was handled (even if an empty value was written)
* or false if nothing was handled (e.g., Core type)
*/
static bool writeEntryGui(KConfigGroup *cg, const char* key, const QVariant &prop,
KConfigGroup::WriteConfigFlags pFlags)
{
switch (prop.type()) {
case QVariant::Color: {
const QColor rColor = prop.value<QColor>();
if (!rColor.isValid()) {
cg->writeEntry(key, "invalid", pFlags);
return true;
}
QList<int> list;
list.insert(0, rColor.red());
list.insert(1, rColor.green());
list.insert(2, rColor.blue());
if (rColor.alpha() != 255)
list.insert(3, rColor.alpha());
cg->writeEntry( key, list, pFlags );
return true;
}
case QVariant::Font:
cg->writeEntry( key, prop.toString().toUtf8(), pFlags );
return true;
case QVariant::Pixmap:
case QVariant::Image:
case QVariant::Brush:
case QVariant::Palette:
case QVariant::Icon:
case QVariant::Region:
case QVariant::Bitmap:
case QVariant::Cursor:
case QVariant::SizePolicy:
case QVariant::Pen:
// we may want to handle one of these in the future
break;
default:
break;
}
return false;
}
static int initKConfigGroupGui()
{
_kde_internal_KConfigGroupGui.readEntryGui = readEntryGui;
_kde_internal_KConfigGroupGui.writeEntryGui = writeEntryGui;
return 42; // because 42 is nicer than 1 or 0
}
#ifdef Q_CONSTRUCTOR_FUNCTION
Q_CONSTRUCTOR_FUNCTION(initKConfigGroupGui)
#else
static int dummyKConfigGroupGui = initKConfigGroupGui();
#endif
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