plasma-framework/private/framesvg_p.h
Jacopo De Simoi 1cef7c2a8d Implement mask caching for a number of different sizes.
The number of cached masks is now capped in a rather brutal way, in practice it should work
well for most cases. 

svn path=/trunk/KDE/kdelibs/; revision=1159649
2010-08-05 21:15:18 +00:00

137 lines
3.2 KiB
C++

/*
* Copyright 2008 by Aaron Seigo <aseigo@kde.org>
* Copyright 2009 Marco Martin <notmart@gmail.com>
*
* 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.
*/
#ifndef PLASMA_FRAMESVG_P_H
#define PLASMA_FRAMESVG_P_H
#include <QHash>
namespace Plasma
{
class FrameData
{
public:
FrameData()
: enabledBorders(FrameSvg::AllBorders),
frameSize(-1,-1),
topHeight(0),
leftWidth(0),
rightWidth(0),
bottomHeight(0),
topMargin(0),
leftMargin(0),
rightMargin(0),
bottomMargin(0),
noBorderPadding(false),
stretchBorders(false),
tileCenter(false)
{
}
FrameData(const FrameData &other)
: enabledBorders(other.enabledBorders),
frameSize(other.frameSize),
topHeight(0),
leftWidth(0),
rightWidth(0),
bottomHeight(0),
topMargin(0),
leftMargin(0),
rightMargin(0),
bottomMargin(0),
noBorderPadding(false),
stretchBorders(false),
tileCenter(false),
composeOverBorder(false)
{
}
~FrameData()
{
}
FrameSvg::EnabledBorders enabledBorders;
QPixmap cachedBackground;
QHash<QString, QRegion> cachedMasks;
static const int MAX_CACHED_MASKS = 10;
QSize frameSize;
//measures
int topHeight;
int leftWidth;
int rightWidth;
int bottomHeight;
//margins, are equal to the measures by default
int topMargin;
int leftMargin;
int rightMargin;
int bottomMargin;
//size of the svg where the size of the "center"
//element is contentWidth x contentHeight
bool noBorderPadding : 1;
bool stretchBorders : 1;
bool tileCenter : 1;
bool composeOverBorder : 1;
};
class FrameSvgPrivate
{
public:
FrameSvgPrivate(FrameSvg *psvg)
: q(psvg),
cacheAll(false),
overlayPos(0,0)
{
}
~FrameSvgPrivate()
{
qDeleteAll(frames);
frames.clear();
}
QPixmap alphaMask();
void generateBackground(FrameData *frame);
void generateFrameBackground(FrameData *frame);
QString cacheId(FrameData *frame, const QString &prefixToUse) const;
void cacheFrame(const QString &prefixToSave, const QPixmap &background, const QPixmap &overlay);
void updateSizes() const;
void updateNeeded();
void updateAndSignalSizes();
QSizeF frameSize(FrameData *frame) const;
Location location;
QString prefix;
FrameSvg *q;
bool cacheAll : 1;
QPoint overlayPos;
QHash<QString, FrameData*> frames;
};
}
#endif