/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QPAINTDEVICE_H+
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#define QPAINTDEVICE_H+
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+
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#include <QtGui/qwindowdefs.h>+
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#include <QtCore/qrect.h>+
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+
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QT_BEGIN_HEADER+
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+
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QT_BEGIN_NAMESPACE+
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+
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QT_MODULE(Gui)+
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+
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#if defined(Q_WS_QWS)+
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class QWSDisplay;+
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#endif+
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+
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class QPaintEngine;+
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+
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class Q_GUI_EXPORT QPaintDevice                                // device for QPainter+
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{+
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public:+
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    enum PaintDeviceMetric {+
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        PdmWidth = 1,+
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        PdmHeight,+
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        PdmWidthMM,+
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        PdmHeightMM,+
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        PdmNumColors,+
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        PdmDepth,+
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        PdmDpiX,+
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        PdmDpiY,+
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        PdmPhysicalDpiX,+
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        PdmPhysicalDpiY+
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    };+
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+
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    virtual ~QPaintDevice();+
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+
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    virtual int devType() const;+
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    bool paintingActive() const;+
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    virtual QPaintEngine *paintEngine() const = 0;+
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+
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#if defined(Q_WS_QWS)+
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    static QWSDisplay *qwsDisplay();+
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#endif+
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+
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#ifdef Q_WS_WIN+
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    virtual HDC getDC() const;+
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    virtual void releaseDC(HDC hdc) const;+
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#endif+
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+
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    int width() const { return metric(PdmWidth); }+
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    int height() const { return metric(PdmHeight); }+
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    int widthMM() const { return metric(PdmWidthMM); }+
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    int heightMM() const { return metric(PdmHeightMM); }+
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    int logicalDpiX() const { return metric(PdmDpiX); }+
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    int logicalDpiY() const { return metric(PdmDpiY); }+
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    int physicalDpiX() const { return metric(PdmPhysicalDpiX); }+
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    int physicalDpiY() const { return metric(PdmPhysicalDpiY); }+
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#ifdef QT_DEPRECATED+
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    QT_DEPRECATED int numColors() const { return metric(PdmNumColors); }+
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#endif+
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    int colorCount() const { return metric(PdmNumColors); }+
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    int depth() const { return metric(PdmDepth); }+
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+
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protected:+
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    QPaintDevice();+
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    virtual int metric(PaintDeviceMetric metric) const;+
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+
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    ushort        painters;                        // refcount+
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+
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private:+
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    Q_DISABLE_COPY(QPaintDevice)+
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+
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#if defined(Q_WS_X11) && defined(QT3_SUPPORT)+
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public:+
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    QT3_SUPPORT Display *x11Display() const;+
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    QT3_SUPPORT int x11Screen() const;+
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    QT3_SUPPORT int x11Depth() const;+
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    QT3_SUPPORT int x11Cells() const;+
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    QT3_SUPPORT Qt::HANDLE x11Colormap() const;+
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    QT3_SUPPORT bool x11DefaultColormap() const;+
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    QT3_SUPPORT void *x11Visual() const;+
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    QT3_SUPPORT bool x11DefaultVisual() const;+
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+
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    static QT3_SUPPORT Display *x11AppDisplay();+
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    static QT3_SUPPORT int x11AppScreen();+
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    static QT3_SUPPORT int x11AppDepth(int screen = -1);+
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    static QT3_SUPPORT int x11AppCells(int screen = -1);+
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    static QT3_SUPPORT Qt::HANDLE x11AppRootWindow(int screen = -1);+
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    static QT3_SUPPORT Qt::HANDLE x11AppColormap(int screen = -1);+
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    static QT3_SUPPORT void *x11AppVisual(int screen = -1);+
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    static QT3_SUPPORT bool x11AppDefaultColormap(int screen =-1);+
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    static QT3_SUPPORT bool x11AppDefaultVisual(int screen =-1);+
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    static QT3_SUPPORT int x11AppDpiX(int screen = -1);+
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    static QT3_SUPPORT int x11AppDpiY(int screen = -1);+
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    static QT3_SUPPORT void x11SetAppDpiX(int, int);+
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    static QT3_SUPPORT void x11SetAppDpiY(int, int);+
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#endif+
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+
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    friend class QPainter;+
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    friend class QFontEngineMac;+
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    friend class QX11PaintEngine;+
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    friend Q_GUI_EXPORT int qt_paint_device_metric(const QPaintDevice *device, PaintDeviceMetric metric);+
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};+
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+
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#ifdef QT3_SUPPORT+
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QT3_SUPPORT Q_GUI_EXPORT+
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void bitBlt(QPaintDevice *dst, int dx, int dy,+
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             const QPaintDevice *src, int sx=0, int sy=0, int sw=-1, int sh=-1,+
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             bool ignoreMask=false);+
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+
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QT3_SUPPORT Q_GUI_EXPORT+
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void bitBlt(QPaintDevice *dst, int dx, int dy,+
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             const QImage *src, int sx=0, int sy=0, int sw=-1, int sh=-1,+
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             int conversion_flags=0);+
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+
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QT3_SUPPORT Q_GUI_EXPORT+
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void bitBlt(QPaintDevice *dst, const QPoint &dp,+
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            const QPaintDevice *src, const QRect &sr=QRect(0,0,-1,-1),+
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            bool ignoreMask=false);+
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#endif+
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+
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/*****************************************************************************+
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  Inline functions+
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 *****************************************************************************/+
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+
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inline int QPaintDevice::devType() const+
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{ return QInternal::UnknownDevice; }+
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+
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inline bool QPaintDevice::paintingActive() const+
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{ return painters != 0; }+
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+
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QT_END_NAMESPACE+
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+
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QT_END_HEADER+
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+
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#endif // QPAINTDEVICE_H+
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