/**************************************************************************** ** ** Implementation of QPaintDevice class for X11 ** ** Created : 940721 ** ** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. ** ** This file is part of the kernel module of the Qt GUI Toolkit. ** ** This file may be used under the terms of the GNU General ** Public License versions 2.0 or 3.0 as published by the Free ** Software Foundation and appearing in the files LICENSE.GPL2 ** and LICENSE.GPL3 included in the packaging of this file. ** Alternatively you may (at your option) use any later version ** of the GNU General Public License if such license has been ** publicly approved by Trolltech ASA (or its successors, if any) ** and the KDE Free Qt Foundation. ** ** Please review the following information to ensure GNU General ** Public Licensing requirements will be met: ** http://trolltech.com/products/qt/licenses/licensing/opensource/. ** If you are unsure which license is appropriate for your use, please ** review the following information: ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview ** or contact the sales department at sales@trolltech.com. ** ** This file may be used under the terms of the Q Public License as ** defined by Trolltech ASA and appearing in the file LICENSE.QPL ** included in the packaging of this file. Licensees holding valid Qt ** Commercial licenses may use this file in accordance with the Qt ** Commercial License Agreement provided with the Software. ** ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted ** herein. ** **********************************************************************/ #include "qpaintdevice.h" #include "qpaintdevicemetrics.h" #include "qpainter.h" #include "qwidget.h" #include "qbitmap.h" #include "qapplication.h" #include "qt_x11_p.h" /*! \class QPaintDevice qpaintdevice.h \brief The QPaintDevice class is the base class of objects that can be painted. \ingroup graphics \ingroup images A paint device is an abstraction of a two-dimensional space that can be drawn using a QPainter. The drawing capabilities are implemented by the subclasses QWidget, QPixmap, QPicture and QPrinter. The default coordinate system of a paint device has its origin located at the top-left position. X increases to the right and Y increases downward. The unit is one pixel. There are several ways to set up a user-defined coordinate system using the painter, for example, using QPainter::setWorldMatrix(). Example (draw on a paint device): \code void MyWidget::paintEvent( QPaintEvent * ) { QPainter p; // our painter p.begin( this ); // start painting the widget p.setPen( red ); // red outline p.setBrush( yellow ); // yellow fill p.drawEllipse( 10, 20, 100,100 ); // 100x100 ellipse at position (10, 20) p.end(); // painting done } \endcode The bit block transfer is an extremely useful operation for copying pixels from one paint device to another (or to itself). It is implemented as the global function bitBlt(). Example (scroll widget contents 10 pixels to the right): \code bitBlt( myWidget, 10, 0, myWidget ); \endcode \warning Qt requires that a QApplication object exists before any paint devices can be created. Paint devices access window system resources, and these resources are not initialized before an application object is created. */ // // Some global variables - these are initialized by QColor::initialize() // Display *QPaintDevice::x_appdisplay = 0; int QPaintDevice::x_appscreen; int QPaintDevice::x_appdepth; int QPaintDevice::x_appcells; Qt::HANDLE QPaintDevice::x_approotwindow; Qt::HANDLE QPaintDevice::x_appcolormap; bool QPaintDevice::x_appdefcolormap; void *QPaintDevice::x_appvisual; bool QPaintDevice::x_appdefvisual; // ### in 4.0, remove the above, and use the below int *QPaintDevice::x_appdepth_arr; int *QPaintDevice::x_appcells_arr; Qt::HANDLE *QPaintDevice::x_approotwindow_arr; Qt::HANDLE *QPaintDevice::x_appcolormap_arr; bool *QPaintDevice::x_appdefcolormap_arr; void **QPaintDevice::x_appvisual_arr; bool *QPaintDevice::x_appdefvisual_arr; /*! \enum QPaintDevice::PDevCmd \internal */ /*! Constructs a paint device with internal flags \a devflags. This constructor can be invoked only from QPaintDevice subclasses. */ QPaintDevice::QPaintDevice( uint devflags ) { if ( !qApp ) { // global constructor #if defined(QT_CHECK_STATE) qFatal( "QPaintDevice: Must construct a QApplication before a " "QPaintDevice" ); #endif return; } devFlags = devflags; painters = 0; hd = 0; rendhd = 0; x11Data = 0; } /*! Destroys the paint device and frees window system resources. */ QPaintDevice::~QPaintDevice() { #if defined(QT_CHECK_STATE) if ( paintingActive() ) qWarning( "QPaintDevice: Cannot destroy paint device that is being " "painted" ); #endif if ( x11Data && x11Data->deref() ) { delete x11Data; x11Data = 0; } } /* \internal Makes a shallow copy of the X11-specific data of \a fromDevice, if it is not null. Otherwise this function sets it to null. */ void QPaintDevice::copyX11Data( const QPaintDevice *fromDevice ) { setX11Data( fromDevice ? fromDevice->x11Data : 0 ); } /* \internal Makes a deep copy of the X11-specific data of \a fromDevice, if it is not null. Otherwise this function sets it to null. */ void QPaintDevice::cloneX11Data( const QPaintDevice *fromDevice ) { if ( fromDevice && fromDevice->x11Data ) { QPaintDeviceX11Data *d = new QPaintDeviceX11Data; *d = *fromDevice->x11Data; d->count = 0; setX11Data( d ); } else { setX11Data( 0 ); } } /* \internal Makes a shallow copy of the X11-specific data \a d and assigns it to this class. This function increments the reference code of \a d. */ void QPaintDevice::setX11Data( const QPaintDeviceX11Data* d ) { if ( x11Data && x11Data->deref() ) delete x11Data; x11Data = (QPaintDeviceX11Data*)d; if ( x11Data ) x11Data->ref(); } /* \internal If \a def is FALSE, returns a deep copy of the x11Data, or 0 if x11Data is 0. If \a def is TRUE, makes a QPaintDeviceX11Data struct filled with the default values. In either case the caller is responsible for deleting the returned struct. But notice that the struct is a shared class, so other classes might also have a reference to it. The reference count of the returned QPaintDeviceX11Data* is 0. */ QPaintDeviceX11Data* QPaintDevice::getX11Data( bool def ) const { QPaintDeviceX11Data* res = 0; if ( def ) { res = new QPaintDeviceX11Data; res->x_display = x11AppDisplay(); res->x_screen = x11AppScreen(); res->x_depth = x11AppDepth(); res->x_cells = x11AppCells(); res->x_colormap = x11Colormap(); res->x_defcolormap = x11AppDefaultColormap(); res->x_visual = x11AppVisual(); res->x_defvisual = x11AppDefaultVisual(); res->deref(); } else if ( x11Data ) { res = new QPaintDeviceX11Data; *res = *x11Data; res->count = 0; } return res; } /*! \fn int QPaintDevice::devType() const \internal Returns the device type identifier, which is \c QInternal::Widget if the device is a QWidget, \c QInternal::Pixmap if it's a QPixmap, \c QInternal::Printer if it's a QPrinter, \c QInternal::Picture if it's a QPicture or \c QInternal::UndefinedDevice in other cases (which should never happen). */ /*! \fn bool QPaintDevice::isExtDev() const Returns TRUE if the device is an external paint device; otherwise returns FALSE. External paint devices cannot be bitBlt()'ed from. QPicture and QPrinter are external paint devices. */ /*! Returns the window system handle of the paint device, for low-level access. Using this function is not portable. The HANDLE type varies with platform; see \c qpaintdevice.h and \c qwindowdefs.h for details. \sa x11Display() */ Qt::HANDLE QPaintDevice::handle() const { return hd; } /*! Returns the window system handle of the paint device for XRender support. Use of this function is not portable. This function will return 0 if XRender support is not compiled into Qt, if the XRender extension is not supported on the X11 display, or if the handle could not be created. */ Qt::HANDLE QPaintDevice::x11RenderHandle() const { #ifndef QT_NO_XFTFREETYPE return rendhd ? XftDrawPicture( (XftDraw *) rendhd ) : 0; #else return 0; #endif // QT_NO_XFTFREETYPE } /*! \fn Display *QPaintDevice::x11AppDisplay() Returns a pointer to the X display global to the application (X11 only). Using this function is not portable. \sa handle() */ /*! \fn int QPaintDevice::x11AppScreen() Returns the screen number on the X display global to the application (X11 only). Using this function is not portable. */ /*! \overload \fn int QPaintDevice::x11AppDepth() Returns the depth for the default screen of the X display global to the application (X11 only). Using this function is not portable. \sa QPixmap::defaultDepth() */ /*! \fn int QPaintDevice::x11AppCells() Returns the number of entries in the colormap for the default screen of the X display global to the application (X11 only). Using this function is not portable. \sa x11Colormap() */ /*! \fn HANDLE QPaintDevice::x11AppRootWindow() Returns the root window for the default screen of the X display global to the applicatoin (X11 only). Using this function is not portable. */ /*! \fn HANDLE QPaintDevice::x11AppColormap() Returns the colormap for the default screen of the X display global to the application (X11 only). Using this function is not portable. \sa x11Cells() */ /*! \fn bool QPaintDevice::x11AppDefaultColormap () Returns the default colormap for the default screen of the X display global to the application (X11 only). Using this function is not portable. \sa x11Cells() */ /*! \fn void* QPaintDevice::x11AppVisual () Returns the Visual for the default screen of the X display global to the application (X11 only). Using this function is not portable. */ /*! \fn bool QPaintDevice::x11AppDefaultVisual () Returns TRUE if the Visual used is the default for the default screen of the X display global to the application (X11 only); otherwise returns FALSE. Using this function is not portable. */ /*! \fn int QPaintDevice::x11AppDepth( int screen ) Returns the depth for screen \a screen of the X display global to the application (X11 only). Using this function is not portable. \sa QPixmap::defaultDepth() */ /*! \overload \fn int QPaintDevice::x11AppCells( int screen ) Returns the number of entries in the colormap for screen \a screen of the X display global to the application (X11 only). Using this function is not portable. \sa x11Colormap() */ /*! \overload \fn HANDLE QPaintDevice::x11AppRootWindow( int screen ) Returns the root window for screen \a screen of the X display global to the applicatoin (X11 only). Using this function is not portable. */ /*! \overload \fn HANDLE QPaintDevice::x11AppColormap( int screen ) Returns the colormap for screen \a screen of the X display global to the application (X11 only). Using this function is not portable. \sa x11Cells() */ /*! \overload \fn bool QPaintDevice::x11AppDefaultColormap( int screen ) Returns the default colormap for screen \a screen of the X display global to the application (X11 only). Using this function is not portable. \sa x11Cells() */ /*! \overload \fn void* QPaintDevice::x11AppVisual( int screen ) Returns the Visual for screen \a screen of the X display global to the application (X11 only). Using this function is not portable. */ /*! \overload \fn bool QPaintDevice::x11AppDefaultVisual( int screen ) Returns TRUE if the Visual used is the default for screen \a screen of the X display global to the application (X11 only); otherwise returns FALSE. Using this function is not portable. */ /*! \fn Display *QPaintDevice::x11Display() const Returns a pointer to the X display for the paint device (X11 only). Using this function is not portable. \sa handle() */ /*! \fn int QPaintDevice::x11Screen () const Returns the screen number on the X display for the paint device (X11 only). Using this function is not portable. */ /*! \fn int QPaintDevice::x11Depth () const Returns the depth of the X display for the paint device (X11 only). Using this function is not portable. \sa QPixmap::defaultDepth() */ /*! \fn int QPaintDevice::x11Cells () const Returns the number of entries in the colormap of the X display for the paint device (X11 only). Using this function is not portable. \sa x11Colormap() */ /*! \fn HANDLE QPaintDevice::x11Colormap () const Returns the colormap of the X display for the paint device (X11 only). Using this function is not portable. \sa x11Cells() */ /*! \fn bool QPaintDevice::x11DefaultColormap () const Returns the default colormap of the X display for the paint device (X11 only). Using this function is not portable. \sa x11Cells() */ /*! \fn void* QPaintDevice::x11Visual () const Returns the Visual of the X display for the paint device (X11 only). Using this function is not portable. */ /*! \fn bool QPaintDevice::x11DefaultVisual () const Returns the default Visual of the X display for the paint device (X11 only). Using this function is not portable. */ static int *dpisX=0, *dpisY=0; static void create_dpis() { if ( dpisX ) return; Display *dpy = QPaintDevice::x11AppDisplay(); if ( ! dpy ) return; int i, screens = ScreenCount( dpy ); dpisX = new int[ screens ]; dpisY = new int[ screens ]; Q_CHECK_PTR( dpisX ); Q_CHECK_PTR( dpisY ); for ( i = 0; i < screens; i++ ) { dpisX[ i ] = (DisplayWidth(dpy,i) * 254 + DisplayWidthMM(dpy,i)*5) / (DisplayWidthMM(dpy,i)*10); dpisY[ i ] = (DisplayHeight(dpy,i) * 254 + DisplayHeightMM(dpy,i)*5) / (DisplayHeightMM(dpy,i)*10); } } /*! Sets the value returned by x11AppDpiX() to \a dpi for screen \a screen. The default is determined by the display configuration. Changing this value will alter the scaling of fonts and many other metrics and is not recommended. Using this function is not portable. \sa x11SetAppDpiY() */ void QPaintDevice::x11SetAppDpiX(int dpi, int screen) { create_dpis(); if ( ! dpisX ) return; if ( screen < 0 ) screen = QPaintDevice::x11AppScreen(); if ( screen > ScreenCount( QPaintDevice::x11AppDisplay() ) ) return; dpisX[ screen ] = dpi; } /*! \overload Sets the value returned by x11AppDpiX() to \a dpi for the default screen. The default is determined by the display configuration. Changing this value will alter the scaling of fonts and many other metrics and is not recommended. Using this function is not portable. */ // ### REMOVE 4.0 void QPaintDevice::x11SetAppDpiX( int dpi ) { QPaintDevice::x11SetAppDpiX( dpi, -1 ); } /*! Sets the value returned by x11AppDpiY() to \a dpi for screen \a screen. The default is determined by the display configuration. Changing this value will alter the scaling of fonts and many other metrics and is not recommended. Using this function is not portable. \sa x11SetAppDpiX() */ void QPaintDevice::x11SetAppDpiY(int dpi, int screen) { create_dpis(); if ( ! dpisY ) return; if ( screen < 0 ) screen = QPaintDevice::x11AppScreen(); if ( screen > ScreenCount( QPaintDevice::x11AppDisplay() ) ) return; dpisY[ screen ] = dpi; } /*! \overload Sets the value returned by x11AppDpiY() to \a dpi for the default screen. The default is determined by the display configuration. Changing this value will alter the scaling of fonts and many other metrics and is not recommended. Using this function is not portable. */ // ### REMOVE 4.0 void QPaintDevice::x11SetAppDpiY( int dpi ) { QPaintDevice::x11SetAppDpiY( dpi, -1 ); } /*! Returns the horizontal DPI of the X display (X11 only) for screen \a screen. Using this function is not portable. See QPaintDeviceMetrics for portable access to related information. Using this function is not portable. \sa x11AppDpiY(), x11SetAppDpiX(), QPaintDeviceMetrics::logicalDpiX() */ int QPaintDevice::x11AppDpiX(int screen) { create_dpis(); if ( ! dpisX ) return 0; if ( screen < 0 ) screen = QPaintDevice::x11AppScreen(); if ( screen > ScreenCount( QPaintDevice::x11AppDisplay() ) ) return 0; return dpisX[ screen ]; } /*! \overload Returns the horizontal DPI of the X display (X11 only) for the default screen. Using this function is not portable. See QPaintDeviceMetrics for portable access to related information. Using this function is not portable. */ int QPaintDevice::x11AppDpiX() { return QPaintDevice::x11AppDpiX( -1 ); } /*! Returns the vertical DPI of the X11 display (X11 only) for screen \a screen. Using this function is not portable. See QPaintDeviceMetrics for portable access to related information. Using this function is not portable. \sa x11AppDpiX(), x11SetAppDpiY(), QPaintDeviceMetrics::logicalDpiY() */ int QPaintDevice::x11AppDpiY( int screen ) { create_dpis(); if ( ! dpisY ) return 0; if ( screen < 0 ) screen = QPaintDevice::x11AppScreen(); if ( screen > ScreenCount( QPaintDevice::x11AppDisplay() ) ) return 0; return dpisY[ screen ]; } /*! \overload Returns the vertical DPI of the X11 display (X11 only) for the default screen. Using this function is not portable. See QPaintDeviceMetrics for portable access to related information. Using this function is not portable. \sa x11AppDpiX(), x11SetAppDpiY(), QPaintDeviceMetrics::logicalDpiY() */ int QPaintDevice::x11AppDpiY() { return QPaintDevice::x11AppDpiY( -1 ); } /*! \fn bool QPaintDevice::paintingActive() const Returns TRUE if the device is being painted, i.e. someone has called QPainter::begin() but not yet called QPainter::end() for this device; otherwise returns FALSE. \sa QPainter::isActive() */ /*! Internal virtual function that interprets drawing commands from the painter. Implemented by subclasses that have no direct support for drawing graphics (external paint devices, for example, QPicture). */ bool QPaintDevice::cmd( int, QPainter *, QPDevCmdParam * ) { #if defined(QT_CHECK_STATE) qWarning( "QPaintDevice::cmd: Device has no command interface" ); #endif return FALSE; } /*! \internal Internal virtual function that returns paint device metrics. Please use the QPaintDeviceMetrics class instead. */ int QPaintDevice::metric( int ) const { #if defined(QT_CHECK_STATE) qWarning( "QPaintDevice::metrics: Device has no metric information" ); #endif return 0; } /*! \internal Internal virtual function. Reserved for future use. Please use the QFontMetrics class instead. */ int QPaintDevice::fontMet( QFont *, int, const char *, int ) const { return 0; } /*! \internal Internal virtual function. Reserved for future use. Please use the QFontInfo class instead. */ int QPaintDevice::fontInf( QFont *, int ) const { return 0; } // // Internal functions for simple GC caching for blt'ing masked pixmaps. // This cache is used when the pixmap optimization is set to Normal // and the pixmap size doesn't exceed 128x128. // static bool init_mask_gc = FALSE; static const int max_mask_gcs = 11; // suitable for hashing struct mask_gc { GC gc; int mask_no; }; static mask_gc gc_vec[max_mask_gcs]; static void cleanup_mask_gc() { Display *dpy = QPaintDevice::x11AppDisplay(); init_mask_gc = FALSE; for ( int i=0; igc || p->mask_no != mask_no ) { // not a perfect match if ( !p->gc ) { // no GC p->gc = XCreateGC( dpy, hd, 0, 0 ); XSetGraphicsExposures( dpy, p->gc, False ); } XSetClipMask( dpy, p->gc, mask ); p->mask_no = mask_no; } return p->gc; } /*! \relates QPaintDevice Copies a block of pixels from \a src to \a dst, perhaps merging each pixel according to the \link Qt::RasterOp raster operation \endlink \a rop. \a sx, \a sy is the top-left pixel in \a src (0, 0) by default, \a dx, \a dy is the top-left position in \a dst and \a sw, \a sh is the size of the copied block (all of \a src by default). The most common values for \a rop are CopyROP and XorROP; the \l Qt::RasterOp documentation defines all the possible values. If \a ignoreMask is FALSE (the default) and \a src is a masked QPixmap, the entire blit is masked by \a{src}->mask(). If \a src, \a dst, \a sw or \a sh is 0, bitBlt() does nothing. If \a sw or \a sh is negative bitBlt() copies starting at \a sx (and respectively, \a sy) and ending at the right end (respectively, bottom) of \a src. \a src must be a QWidget or QPixmap. You cannot blit from a QPrinter, for example. bitBlt() does nothing if you attempt to blit from an unsupported device. bitBlt() does nothing if \a src has a greater depth than \e dst. If you need to for example, draw a 24-bit pixmap on an 8-bit widget, you must use drawPixmap(). */ void bitBlt( QPaintDevice *dst, int dx, int dy, const QPaintDevice *src, int sx, int sy, int sw, int sh, Qt::RasterOp rop, bool ignoreMask ) { if ( !src || !dst ) { #if defined(QT_CHECK_NULL) Q_ASSERT( src != 0 ); Q_ASSERT( dst != 0 ); #endif return; } if ( !src->handle() || src->isExtDev() ) return; QPaintDevice *pdev = QPainter::redirect( dst ); if ( pdev ) dst = pdev; int ts = src->devType(); // from device type int td = dst->devType(); // to device type Display *dpy = src->x11Display(); if ( sw <= 0 ) { // special width if ( sw < 0 ) sw = src->metric( QPaintDeviceMetrics::PdmWidth ) - sx; else return; } if ( sh <= 0 ) { // special height if ( sh < 0 ) sh = src->metric( QPaintDeviceMetrics::PdmHeight ) - sy; else return; } if ( dst->paintingActive() && dst->isExtDev() ) { QPixmap *pm; // output to picture/printer bool tmp_pm = TRUE; if ( ts == QInternal::Pixmap ) { pm = (QPixmap*)src; if ( sx != 0 || sy != 0 || sw != pm->width() || sh != pm->height() || ignoreMask ) { QPixmap *tmp = new QPixmap( sw, sh, pm->depth() ); bitBlt( tmp, 0, 0, pm, sx, sy, sw, sh, Qt::CopyROP, TRUE ); if ( pm->mask() && !ignoreMask ) { QBitmap mask( sw, sh ); bitBlt( &mask, 0, 0, pm->mask(), sx, sy, sw, sh, Qt::CopyROP, TRUE ); tmp->setMask( mask ); } pm = tmp; } else { tmp_pm = FALSE; } } else if ( ts == QInternal::Widget ) {// bitBlt to temp pixmap pm = new QPixmap( sw, sh ); Q_CHECK_PTR( pm ); bitBlt( pm, 0, 0, src, sx, sy, sw, sh ); } else { #if defined(QT_CHECK_RANGE) qWarning( "bitBlt: Cannot bitBlt from device" ); #endif return; } QPDevCmdParam param[3]; QRect r(dx, dy, pm->width(), pm->height()); param[0].rect = &r; param[1].pixmap = pm; dst->cmd( QPaintDevice::PdcDrawPixmap, 0, param ); if ( tmp_pm ) delete pm; return; } switch ( ts ) { case QInternal::Widget: case QInternal::Pixmap: case QInternal::System: // OK, can blt from these break; default: #if defined(QT_CHECK_RANGE) qWarning( "bitBlt: Cannot bitBlt from device type %x", ts ); #endif return; } switch ( td ) { case QInternal::Widget: case QInternal::Pixmap: case QInternal::System: // OK, can blt to these break; default: #if defined(QT_CHECK_RANGE) qWarning( "bitBlt: Cannot bitBlt to device type %x", td ); #endif return; } static const short ropCodes[] = { // ROP translation table GXcopy, GXor, GXxor, GXandInverted, GXcopyInverted, GXorInverted, GXequiv, GXand, GXinvert, GXclear, GXset, GXnoop, GXandReverse, GXorReverse, GXnand, GXnor }; if ( rop > Qt::LastROP ) { #if defined(QT_CHECK_RANGE) qWarning( "bitBlt: Invalid ROP code" ); #endif return; } if ( dst->handle() == 0 ) { #if defined(QT_CHECK_NULL) qWarning( "bitBlt: Cannot bitBlt to device" ); #endif return; } bool mono_src; bool mono_dst; bool include_inferiors = FALSE; bool graphics_exposure = FALSE; QPixmap *src_pm; QBitmap *mask; if ( ts == QInternal::Pixmap ) { src_pm = (QPixmap*)src; if ( src_pm->x11Screen() != dst->x11Screen() ) src_pm->x11SetScreen( dst->x11Screen() ); mono_src = src_pm->depth() == 1; mask = ignoreMask ? 0 : src_pm->data->mask; } else { src_pm = 0; mono_src = FALSE; mask = 0; include_inferiors = ((QWidget*)src)->testWFlags(Qt::WPaintUnclipped); graphics_exposure = td == QInternal::Widget; } if ( td == QInternal::Pixmap ) { if ( dst->x11Screen() != src->x11Screen() ) ((QPixmap*)dst)->x11SetScreen( src->x11Screen() ); mono_dst = ((QPixmap*)dst)->depth() == 1; ((QPixmap*)dst)->detach(); // changes shared pixmap } else { mono_dst = FALSE; include_inferiors = include_inferiors || ((QWidget*)dst)->testWFlags(Qt::WPaintUnclipped); } if ( mono_dst && !mono_src ) { // dest is 1-bit pixmap, source is not #if defined(QT_CHECK_RANGE) qWarning( "bitBlt: Incompatible destination pixmap" ); #endif return; } #ifndef QT_NO_XRENDER if (src_pm && !mono_src && src_pm->data->alphapm && !ignoreMask ) { // use RENDER to do the blit QPixmap *alpha = src_pm->data->alphapm; if (src->x11RenderHandle() && alpha->x11RenderHandle() && dst->x11RenderHandle()) { XRenderPictureAttributes pattr; ulong picmask = 0; if (include_inferiors) { pattr.subwindow_mode = IncludeInferiors; picmask |= CPSubwindowMode; } if (graphics_exposure) { pattr.graphics_exposures = TRUE; picmask |= CPGraphicsExposure; } if (picmask) XRenderChangePicture(dpy, dst->x11RenderHandle(), picmask, &pattr); XRenderComposite(dpy, PictOpOver, src->x11RenderHandle(), alpha->x11RenderHandle(), dst->x11RenderHandle(), sx, sy, sx, sy, dx, dy, sw, sh); // restore attributes pattr.subwindow_mode = ClipByChildren; pattr.graphics_exposures = FALSE; if (picmask) XRenderChangePicture(dpy, dst->x11RenderHandle(), picmask, &pattr); return; } } #endif GC gc; if ( mask && !mono_src ) { // fast masked blt bool temp_gc = FALSE; if ( mask->data->maskgc ) { gc = (GC)mask->data->maskgc; // we have a premade mask GC } else { if ( FALSE && src_pm->optimization() == QPixmap::NormalOptim ) { // #### cache disabled // Compete for the global cache gc = cache_mask_gc( dpy, dst->handle(), mask->data->ser_no, mask->handle() ); } else { // Create a new mask GC. If BestOptim, we store the mask GC // with the mask (not at the pixmap). This way, many pixmaps // which have a common mask will be optimized at no extra cost. gc = XCreateGC( dpy, dst->handle(), 0, 0 ); XSetGraphicsExposures( dpy, gc, False ); XSetClipMask( dpy, gc, mask->handle() ); if ( src_pm->optimization() == QPixmap::BestOptim ) { mask->data->maskgc = gc; } else { temp_gc = TRUE; } } } XSetClipOrigin( dpy, gc, dx-sx, dy-sy ); if ( rop != Qt::CopyROP ) // use non-default ROP code XSetFunction( dpy, gc, ropCodes[rop] ); if ( include_inferiors ) { XSetSubwindowMode( dpy, gc, IncludeInferiors ); XCopyArea( dpy, src->handle(), dst->handle(), gc, sx, sy, sw, sh, dx, dy ); XSetSubwindowMode( dpy, gc, ClipByChildren ); } else { XCopyArea( dpy, src->handle(), dst->handle(), gc, sx, sy, sw, sh, dx, dy ); } if ( temp_gc ) // delete temporary GC XFreeGC( dpy, gc ); else if ( rop != Qt::CopyROP ) // restore ROP XSetFunction( dpy, gc, GXcopy ); return; } gc = qt_xget_temp_gc( dst->x11Screen(), mono_dst ); // get a reusable GC if ( rop != Qt::CopyROP ) // use non-default ROP code XSetFunction( dpy, gc, ropCodes[rop] ); if ( mono_src && mono_dst && src == dst ) { // dst and src are the same bitmap XCopyArea( dpy, src->handle(), dst->handle(), gc, sx, sy, sw, sh, dx, dy ); } else if ( mono_src ) { // src is bitmap XGCValues gcvals; ulong valmask = GCBackground | GCForeground | GCFillStyle | GCStipple | GCTileStipXOrigin | GCTileStipYOrigin; if ( td == QInternal::Widget ) { // set GC colors QWidget *w = (QWidget *)dst; gcvals.background = w->backgroundColor().pixel( dst->x11Screen() ); gcvals.foreground = w->foregroundColor().pixel( dst->x11Screen() ); if ( include_inferiors ) { valmask |= GCSubwindowMode; gcvals.subwindow_mode = IncludeInferiors; } } else if ( mono_dst ) { gcvals.background = 0; gcvals.foreground = 1; } else { gcvals.background = Qt::white.pixel( dst->x11Screen() ); gcvals.foreground = Qt::black.pixel( dst->x11Screen() ); } gcvals.fill_style = FillOpaqueStippled; gcvals.stipple = src->handle(); gcvals.ts_x_origin = dx - sx; gcvals.ts_y_origin = dy - sy; bool clipmask = FALSE; if ( mask ) { if ( ((QPixmap*)src)->data->selfmask ) { gcvals.fill_style = FillStippled; } else { XSetClipMask( dpy, gc, mask->handle() ); XSetClipOrigin( dpy, gc, dx-sx, dy-sy ); clipmask = TRUE; } } XChangeGC( dpy, gc, valmask, &gcvals ); XFillRectangle( dpy,dst->handle(), gc, dx, dy, sw, sh ); valmask = GCFillStyle | GCTileStipXOrigin | GCTileStipYOrigin; gcvals.fill_style = FillSolid; gcvals.ts_x_origin = 0; gcvals.ts_y_origin = 0; if ( include_inferiors ) { valmask |= GCSubwindowMode; gcvals.subwindow_mode = ClipByChildren; } XChangeGC( dpy, gc, valmask, &gcvals ); if ( clipmask ) { XSetClipOrigin( dpy, gc, 0, 0 ); XSetClipMask( dpy, gc, None ); } } else { // src is pixmap/widget if ( graphics_exposure ) // widget to widget XSetGraphicsExposures( dpy, gc, True ); if ( include_inferiors ) { XSetSubwindowMode( dpy, gc, IncludeInferiors ); XCopyArea( dpy, src->handle(), dst->handle(), gc, sx, sy, sw, sh, dx, dy ); XSetSubwindowMode( dpy, gc, ClipByChildren ); } else { XCopyArea( dpy, src->handle(), dst->handle(), gc, sx, sy, sw, sh, dx, dy ); } if ( graphics_exposure ) // reset graphics exposure XSetGraphicsExposures( dpy, gc, False ); } if ( rop != Qt::CopyROP ) // restore ROP XSetFunction( dpy, gc, GXcopy ); } /*! \relates QPaintDevice \overload void bitBlt( QPaintDevice *dst, const QPoint &dp, const QPaintDevice *src, const QRect &sr, RasterOp rop ) Overloaded bitBlt() with the destination point \a dp and source rectangle \a sr. */ /*! \internal */ // makes it possible to add a setResolution as we have in QPrinter for all // paintdevices without breaking bin compatibility. void QPaintDevice::setResolution( int ) { } /*!\internal */ int QPaintDevice::resolution() const { return metric( QPaintDeviceMetrics::PdmDpiY ); }