?? qpaintdevice.h
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/******************************************************************************** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.**** This file is part of the QtGui module of the Qt Toolkit.**** This file may be used under the terms of the GNU General Public** License version 2.0 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 GNU** General Public Licensing requirements will be met:** http://www.trolltech.com/products/qt/opensource.html**** If you are unsure which license is appropriate for your use, please** review the following information:** http://www.trolltech.com/products/qt/licensing.html or contact the** sales department at sales@trolltech.com.**** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.******************************************************************************/#ifndef QPAINTDEVICE_H#define QPAINTDEVICE_H#include <QtGui/qwindowdefs.h>#include <QtCore/qrect.h>QT_BEGIN_HEADERQT_MODULE(Gui)#if defined(Q_WS_QWS)class QWSDisplay;#endifclass 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; // refcountprivate: 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 QQuickDrawPaintEngine; friend class QFontEngineMac; friend class QX11PaintEngine;};#ifdef QT3_SUPPORTQT3_SUPPORT Q_GUI_EXPORTvoid 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_EXPORTvoid 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_EXPORTvoid 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_HEADER#endif // QPAINTDEVICE_H
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