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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QPAINTDEVICE_H
#define QPAINTDEVICE_H
#include <QtGui/qwindowdefs.h>
#include <QtCore/qrect.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
#if defined(Q_WS_QWS)
class QWSDisplay;
#endif
class QPaintEngine;
class Q_GUI_EXPORT QPaintDevice // device for QPainter
{
public:
enum PaintDeviceMetric {
PdmWidth = 1,
PdmHeight,
PdmWidthMM,
PdmHeightMM,
PdmNumColors,
PdmDepth,
PdmDpiX,
PdmDpiY,
PdmPhysicalDpiX,
PdmPhysicalDpiY
};
virtual ~QPaintDevice();
virtual int devType() const;
bool paintingActive() const;
virtual QPaintEngine *paintEngine() const = 0;
#if defined(Q_WS_QWS)
static QWSDisplay *qwsDisplay();
#endif
#ifdef Q_WS_WIN
virtual HDC getDC() const;
virtual void releaseDC(HDC hdc) const;
#endif
int width() const { return metric(PdmWidth); }
int height() const { return metric(PdmHeight); }
int widthMM() const { return metric(PdmWidthMM); }
int heightMM() const { return metric(PdmHeightMM); }
int logicalDpiX() const { return metric(PdmDpiX); }
int logicalDpiY() const { return metric(PdmDpiY); }
int physicalDpiX() const { return metric(PdmPhysicalDpiX); }
int physicalDpiY() const { return metric(PdmPhysicalDpiY); }
int numColors() const { return metric(PdmNumColors); }
int depth() const { return metric(PdmDepth); }
protected:
QPaintDevice();
virtual int metric(PaintDeviceMetric metric) const;
ushort painters; // refcount
private:
Q_DISABLE_COPY(QPaintDevice)
#if defined(Q_WS_X11) && defined(QT3_SUPPORT)
public:
QT3_SUPPORT Display *x11Display() const;
QT3_SUPPORT int x11Screen() const;
QT3_SUPPORT int x11Depth() const;
QT3_SUPPORT int x11Cells() const;
QT3_SUPPORT Qt::HANDLE x11Colormap() const;
QT3_SUPPORT bool x11DefaultColormap() const;
QT3_SUPPORT void *x11Visual() const;
QT3_SUPPORT bool x11DefaultVisual() const;
static QT3_SUPPORT Display *x11AppDisplay();
static QT3_SUPPORT int x11AppScreen();
static QT3_SUPPORT int x11AppDepth(int screen = -1);
static QT3_SUPPORT int x11AppCells(int screen = -1);
static QT3_SUPPORT Qt::HANDLE x11AppRootWindow(int screen = -1);
static QT3_SUPPORT Qt::HANDLE x11AppColormap(int screen = -1);
static QT3_SUPPORT void *x11AppVisual(int screen = -1);
static QT3_SUPPORT bool x11AppDefaultColormap(int screen =-1);
static QT3_SUPPORT bool x11AppDefaultVisual(int screen =-1);
static QT3_SUPPORT int x11AppDpiX(int screen = -1);
static QT3_SUPPORT int x11AppDpiY(int screen = -1);
static QT3_SUPPORT void x11SetAppDpiX(int, int);
static QT3_SUPPORT void x11SetAppDpiY(int, int);
#endif
friend class QPainter;
friend class QFontEngineMac;
friend class QX11PaintEngine;
};
#ifdef QT3_SUPPORT
QT3_SUPPORT Q_GUI_EXPORT
void bitBlt(QPaintDevice *dst, int dx, int dy,
const QPaintDevice *src, int sx=0, int sy=0, int sw=-1, int sh=-1,
bool ignoreMask=false);
QT3_SUPPORT Q_GUI_EXPORT
void bitBlt(QPaintDevice *dst, int dx, int dy,
const QImage *src, int sx=0, int sy=0, int sw=-1, int sh=-1,
int conversion_flags=0);
QT3_SUPPORT Q_GUI_EXPORT
void bitBlt(QPaintDevice *dst, const QPoint &dp,
const QPaintDevice *src, const QRect &sr=QRect(0,0,-1,-1),
bool ignoreMask=false);
#endif
/*****************************************************************************
Inline functions
*****************************************************************************/
inline int QPaintDevice::devType() const
{ return QInternal::UnknownDevice; }
inline bool QPaintDevice::paintingActive() const
{ return painters != 0; }
QT_END_NAMESPACE
QT_END_HEADER
#endif // QPAINTDEVICE_H
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