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/* This file is part of the KDE project
*
* Copyright (C) 2011 Pierre Ducroquet <pinaraf@pinaraf.info>
*
* 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 "KoShadowStyle.h"
#include <KoUnit.h>
// KoShadowStyle private class
class KoShadowStylePrivate: public QSharedData
{
public:
KoShadowStylePrivate();
~KoShadowStylePrivate();
QVector<KoShadowStyle::ShadowData> shadows;
};
KoShadowStylePrivate::KoShadowStylePrivate()
{
}
KoShadowStylePrivate::~KoShadowStylePrivate()
{
}
// KoShadowStyle::ShadowData structure
KoShadowStyle::ShadowData::ShadowData()
: color(), offset(0, 0), radius(0.0)
{
}
bool KoShadowStyle::ShadowData::operator==(const KoShadowStyle::ShadowData &other) const
{
return (color == other.color) && (offset == other.offset) && (radius == other.radius);
}
// KoShadowStyle class
KoShadowStyle::KoShadowStyle()
: d(new KoShadowStylePrivate)
{
}
KoShadowStyle::KoShadowStyle(const KoShadowStyle &other)
: d(other.d)
{
}
KoShadowStyle::~KoShadowStyle()
{
}
bool KoShadowStyle::operator==(const KoShadowStyle &other) const
{
if (d.data() == other.d.data())
return true;
if (shadowCount() != other.shadowCount())
return false;
foreach (const ShadowData &data, d->shadows)
{
if (!other.d->shadows.contains(data))
return false;
}
return true;
}
bool KoShadowStyle::operator!=(const KoShadowStyle &other) const
{
return !operator==(other);
}
// load value string as specified by CSS2 §7.16.5 "text-shadow"
bool KoShadowStyle::loadOdf (const QString &data)
{
if (data == QLatin1String("none"))
return true;
const QStringList sub_shadows = data.split(QLatin1Char(','));
foreach (const QString &shadow, sub_shadows) {
QStringList words = shadow.split(QLatin1Char(' '), QString::SkipEmptyParts);
if (words.isEmpty())
return false;
KoShadowStyle::ShadowData currentData;
// look for color at begin
QColor shadowColor(words.first());
if (shadowColor.isValid()) {
currentData.color = shadowColor;
words.removeFirst();
} else if (words.length() > 2) {
// look for color at end, if there could be one
shadowColor = QColor(words.last());
if (shadowColor.isValid()) {
currentData.color = shadowColor;
words.removeLast();
}
}
// We keep an invalid color.if none was found
// "Each shadow effect must specify a shadow offset and may optionally
// specify a blur radius and a shadow color.", from CSS2 §7.16.5 "text-shadow"
// But for some reason also no offset has been accepted before. TODO: which?
if (! words.isEmpty()) {
if ((words.length() < 2) || (words.length() > 3))
return false;
// Parse offset
currentData.offset.setX(KoUnit::parseValue(words.at(0), 0.0));
currentData.offset.setY(KoUnit::parseValue(words.at(1), 0.0));
// Parse blur radius if present
if (words.length() == 3)
currentData.radius = KoUnit::parseValue(words.at(2), 0.0);
}
d->shadows << currentData;
}
return true;
}
int KoShadowStyle::shadowCount() const
{
return d->shadows.size();
}
QString KoShadowStyle::saveOdf() const
{
if (d->shadows.isEmpty())
return QLatin1String("none");
QStringList parts;
const QString pt = QLatin1String("%1pt");
foreach (const ShadowData &data, d->shadows) {
QStringList elements;
if (data.color.isValid()) {
elements << data.color.name();
}
elements << pt.arg(data.offset.x()) << pt.arg(data.offset.y());
if (data.radius != 0)
elements << pt.arg(data.radius);
parts << elements.join(QLatin1String(" "));
}
return parts.join(QLatin1String(","));
}
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