kdelibs/plasma/private/effects/halopainter_p.h
Ivailo Monev 61333c4671 generic: namespaced Qt4/Katie build fixes
most of the changes were done trought Katie's namefsck script which
convertes forward class declarations to include directives, however
other fixes here and there were needed as well as some questionable
changes to Q_DECLARE_TYPEINFO() macro calls because they most likely
have to do the namespacing themselfs (QT_BEGIN/END_NAMESPACE, and
probably will be in Katie) meaning that some of the changes may be
temporary and reverted later.

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
2017-08-04 09:24:39 +00:00

80 lines
1.9 KiB
C++

/*
* Copyright © 2009 Fredrik Höglund <fredrik@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.
*/
#ifndef HALOPAINTER_H
#define HALOPAINTER_H
#include <QCache>
#include <QPixmap>
#include <QRect>
#include <QPainter>
namespace Plasma {
class TileSet
{
public:
enum Tile {
Left, Center, Right, NTiles
};
TileSet(const QPixmap &pixmap);
~TileSet() {}
void paint(QPainter *painter, const QRect &rect);
protected:
QPixmap tiles[NTiles];
};
// -----------------------------------------------------------------------
class HaloPainter : public QObject
{
public:
~HaloPainter();
static HaloPainter *instance() {
if (!s_instance) {
s_instance = new HaloPainter;
}
return s_instance;
}
static void drawHalo(QPainter *painter, const QRect &textRect) {
instance()->paint(painter, textRect);
}
private:
HaloPainter();
TileSet *tiles(int height) const;
void paint(QPainter *painter, const QRect &textRect) const;
private:
static HaloPainter *s_instance;
mutable QCache<int, TileSet> m_tileCache;
mutable QCache<int, QPixmap> m_haloCache;
};
} // namespace Plasma
#endif