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tqt3/src/kernel/qpaintdevice_x11.cpp

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/****************************************************************************
**
** Implementation of TQPaintDevice class for X11
**
** Created : 940721
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the kernel module of the TQt 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 TQt 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.TQPL
** included in the packaging of this file. Licensees holding valid TQt
** Commercial licenses may use this file in accordance with the TQt
** 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 "ntqpaintdevice.h"
#include "ntqpaintdevicemetrics.h"
#include "ntqpainter.h"
#include "ntqwidget.h"
#include "ntqbitmap.h"
#include "ntqapplication.h"
#include "qt_x11_p.h"
/*!
\class TQPaintDevice ntqpaintdevice.h
\brief The TQPaintDevice 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 TQPainter. The drawing capabilities are
implemented by the subclasses TQWidget, TQPixmap, TQPicture and
TQPrinter.
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 TQPainter::setWorldMatrix().
Example (draw on a paint device):
\code
void MyWidget::paintEvent( TQPaintEvent * )
{
TQPainter 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 TQt requires that a TQApplication 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 TQColor::initialize()
//
Display *TQPaintDevice::x_appdisplay = 0;
int TQPaintDevice::x_appscreen;
int TQPaintDevice::x_appdepth;
int TQPaintDevice::x_appcells;
TQt::HANDLE TQPaintDevice::x_approotwindow;
TQt::HANDLE TQPaintDevice::x_appcolormap;
bool TQPaintDevice::x_appdefcolormap;
void *TQPaintDevice::x_appvisual;
bool TQPaintDevice::x_appdefvisual;
// ### in 4.0, remove the above, and use the below
int *TQPaintDevice::x_appdepth_arr;
int *TQPaintDevice::x_appcells_arr;
TQt::HANDLE *TQPaintDevice::x_approotwindow_arr;
TQt::HANDLE *TQPaintDevice::x_appcolormap_arr;
bool *TQPaintDevice::x_appdefcolormap_arr;
void **TQPaintDevice::x_appvisual_arr;
bool *TQPaintDevice::x_appdefvisual_arr;
/*!
\enum TQPaintDevice::PDevCmd
\internal
*/
/*!
Constructs a paint device with internal flags \a devflags. This
constructor can be invoked only from TQPaintDevice subclasses.
*/
TQPaintDevice::TQPaintDevice( uint devflags )
{
if ( !tqApp ) { // global constructor
#if defined(QT_CHECK_STATE)
tqFatal( "TQPaintDevice: Must construct a TQApplication before a "
"TQPaintDevice" );
#endif
return;
}
devFlags = devflags;
painters = 0;
hd = 0;
rendhd = 0;
x11Data = 0;
}
/*!
Destroys the paint device and frees window system resources.
*/
TQPaintDevice::~TQPaintDevice()
{
#if defined(QT_CHECK_STATE)
if ( paintingActive() )
tqWarning( "TQPaintDevice: 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 TQPaintDevice::copyX11Data( const TQPaintDevice *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 TQPaintDevice::cloneX11Data( const TQPaintDevice *fromDevice )
{
if ( fromDevice && fromDevice->x11Data ) {
TQPaintDeviceX11Data *d = new TQPaintDeviceX11Data;
*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 TQPaintDevice::setX11Data( const TQPaintDeviceX11Data* d )
{
if ( x11Data && x11Data->deref() )
delete x11Data;
x11Data = (TQPaintDeviceX11Data*)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 TQPaintDeviceX11Data 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 TQPaintDeviceX11Data* is 0.
*/
TQPaintDeviceX11Data* TQPaintDevice::getX11Data( bool def ) const
{
TQPaintDeviceX11Data* res = 0;
if ( def ) {
res = new TQPaintDeviceX11Data;
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 TQPaintDeviceX11Data;
*res = *x11Data;
res->count = 0;
}
return res;
}
/*!
\fn int TQPaintDevice::devType() const
\internal
Returns the device type identifier, which is \c TQInternal::Widget
if the device is a TQWidget, \c TQInternal::Pixmap if it's a
TQPixmap, \c TQInternal::Printer if it's a TQPrinter, \c
TQInternal::Picture if it's a TQPicture or \c
TQInternal::UndefinedDevice in other cases (which should never
happen).
*/
/*!
\fn bool TQPaintDevice::isExtDev() const
Returns TRUE if the device is an external paint device; otherwise
returns FALSE.
External paint devices cannot be bitBlt()'ed from. TQPicture and
TQPrinter 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 ntqpaintdevice.h and
\c ntqwindowdefs.h for details.
\sa x11Display()
*/
TQt::HANDLE TQPaintDevice::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 TQt, if the
XRender extension is not supported on the X11 display, or if the
handle could not be created.
*/
TQt::HANDLE TQPaintDevice::x11RenderHandle() const
{
#ifndef TQT_NO_XFTFREETYPE
return rendhd ? XftDrawPicture( (XftDraw *) rendhd ) : 0;
#else
return 0;
#endif // TQT_NO_XFTFREETYPE
}
/*!
\fn Display *TQPaintDevice::x11AppDisplay()
Returns a pointer to the X display global to the application (X11
only). Using this function is not portable.
\sa handle()
*/
/*!
\fn int TQPaintDevice::x11AppScreen()
Returns the screen number on the X display global to the
application (X11 only). Using this function is not portable.
*/
/*!
\overload
\fn int TQPaintDevice::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 TQPixmap::defaultDepth()
*/
/*!
\fn int TQPaintDevice::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 TQPaintDevice::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 TQPaintDevice::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 TQPaintDevice::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* TQPaintDevice::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 TQPaintDevice::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 TQPaintDevice::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 TQPixmap::defaultDepth()
*/
/*!
\overload
\fn int TQPaintDevice::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 TQPaintDevice::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 TQPaintDevice::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 TQPaintDevice::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* TQPaintDevice::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 TQPaintDevice::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 *TQPaintDevice::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 TQPaintDevice::x11Screen () const
Returns the screen number on the X display for the paint device
(X11 only). Using this function is not portable.
*/
/*!
\fn int TQPaintDevice::x11Depth () const
Returns the depth of the X display for the paint device (X11
only). Using this function is not portable.
\sa TQPixmap::defaultDepth()
*/
/*!
\fn int TQPaintDevice::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 TQPaintDevice::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 TQPaintDevice::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* TQPaintDevice::x11Visual () const
Returns the Visual of the X display for the paint device (X11
only). Using this function is not portable.
*/
/*!
\fn bool TQPaintDevice::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 = TQPaintDevice::x11AppDisplay();
if ( ! dpy )
return;
int i, screens = ScreenCount( dpy );
dpisX = new int[ screens ];
dpisY = new int[ screens ];
TQ_CHECK_PTR( dpisX );
TQ_CHECK_PTR( dpisY );
for ( i = 0; i < screens; i++ ) {
if (DisplayWidthMM(dpy,i) < 1)
dpisX[ i ] = 75; // default the dpi to 75.
else
dpisX[ i ] = (DisplayWidth(dpy,i) * 254 + DisplayWidthMM(dpy,i)*5)
/ (DisplayWidthMM(dpy,i)*10);
if (DisplayHeightMM(dpy,i) < 1)
dpisY[ i ] = 75; // default the dpi to 75.
else
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 TQPaintDevice::x11SetAppDpiX(int dpi, int screen)
{
create_dpis();
if ( ! dpisX )
return;
if ( screen < 0 )
screen = TQPaintDevice::x11AppScreen();
if ( screen > ScreenCount( TQPaintDevice::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 TQPaintDevice::x11SetAppDpiX( int dpi )
{
TQPaintDevice::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 TQPaintDevice::x11SetAppDpiY(int dpi, int screen)
{
create_dpis();
if ( ! dpisY )
return;
if ( screen < 0 )
screen = TQPaintDevice::x11AppScreen();
if ( screen > ScreenCount( TQPaintDevice::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 TQPaintDevice::x11SetAppDpiY( int dpi )
{
TQPaintDevice::x11SetAppDpiY( dpi, -1 );
}
/*!
Returns the horizontal DPI of the X display (X11 only) for screen
\a screen. Using this function is not portable. See
TQPaintDeviceMetrics for portable access to related information.
Using this function is not portable.
\sa x11AppDpiY(), x11SetAppDpiX(), TQPaintDeviceMetrics::logicalDpiX()
*/
int TQPaintDevice::x11AppDpiX(int screen)
{
create_dpis();
if ( ! dpisX )
return 0;
if ( screen < 0 )
screen = TQPaintDevice::x11AppScreen();
if ( screen > ScreenCount( TQPaintDevice::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
TQPaintDeviceMetrics for portable access to related information.
Using this function is not portable.
*/
int TQPaintDevice::x11AppDpiX()
{
return TQPaintDevice::x11AppDpiX( -1 );
}
/*!
Returns the vertical DPI of the X11 display (X11 only) for screen
\a screen. Using this function is not portable. See
TQPaintDeviceMetrics for portable access to related information.
Using this function is not portable.
\sa x11AppDpiX(), x11SetAppDpiY(), TQPaintDeviceMetrics::logicalDpiY()
*/
int TQPaintDevice::x11AppDpiY( int screen )
{
create_dpis();
if ( ! dpisY )
return 0;
if ( screen < 0 )
screen = TQPaintDevice::x11AppScreen();
if ( screen > ScreenCount( TQPaintDevice::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
TQPaintDeviceMetrics for portable access to related information.
Using this function is not portable.
\sa x11AppDpiX(), x11SetAppDpiY(), TQPaintDeviceMetrics::logicalDpiY()
*/
int TQPaintDevice::x11AppDpiY()
{
return TQPaintDevice::x11AppDpiY( -1 );
}
/*!
\fn bool TQPaintDevice::paintingActive() const
Returns TRUE if the device is being painted, i.e. someone has
called TQPainter::begin() but not yet called TQPainter::end() for
this device; otherwise returns FALSE.
\sa TQPainter::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, TQPicture).
*/
bool TQPaintDevice::cmd( int, TQPainter *, TQPDevCmdParam * )
{
#if defined(QT_CHECK_STATE)
tqWarning( "TQPaintDevice::cmd: Device has no command interface" );
#endif
return FALSE;
}
/*!
\internal
Internal virtual function that returns paint device metrics.
Please use the TQPaintDeviceMetrics class instead.
*/
int TQPaintDevice::metric( int ) const
{
#if defined(QT_CHECK_STATE)
tqWarning( "TQPaintDevice::metrics: Device has no metric information" );
#endif
return 0;
}
/*!
\internal
Internal virtual function. Reserved for future use.
Please use the TQFontMetrics class instead.
*/
int TQPaintDevice::fontMet( TQFont *, int, const char *, int ) const
{
return 0;
}
/*!
\internal
Internal virtual function. Reserved for future use.
Please use the TQFontInfo class instead.
*/
int TQPaintDevice::fontInf( TQFont *, 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 = TQPaintDevice::x11AppDisplay();
init_mask_gc = FALSE;
for ( int i=0; i<max_mask_gcs; i++ ) {
if ( gc_vec[i].gc )
XFreeGC( dpy, gc_vec[i].gc );
}
}
static GC cache_mask_gc( Display *dpy, Drawable hd, int mask_no, Pixmap mask )
{
if ( !init_mask_gc ) { // first time initialization
init_mask_gc = TRUE;
tqAddPostRoutine( cleanup_mask_gc );
for ( int i=0; i<max_mask_gcs; i++ )
gc_vec[i].gc = 0;
}
mask_gc *p = &gc_vec[mask_no % max_mask_gcs];
if ( !p->gc || 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 TQPaintDevice
Copies a block of pixels from \a src to \a dst, perhaps merging
each pixel according to the \link TQt::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
TQt::RasterOp documentation defines all the possible values.
If \a ignoreMask is FALSE (the default) and \a src is a
masked TQPixmap, 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 TQWidget or TQPixmap. You cannot blit from a
TQPrinter, 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( TQPaintDevice *dst, int dx, int dy,
const TQPaintDevice *src, int sx, int sy, int sw, int sh,
TQt::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;
TQPaintDevice *pdev = TQPainter::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( TQPaintDeviceMetrics::PdmWidth ) - sx;
else
return;
}
if ( sh <= 0 ) { // special height
if ( sh < 0 )
sh = src->metric( TQPaintDeviceMetrics::PdmHeight ) - sy;
else
return;
}
if ( dst->paintingActive() && dst->isExtDev() ) {
TQPixmap *pm; // output to picture/printer
bool tmp_pm = TRUE;
if ( ts == TQInternal::Pixmap ) {
pm = (TQPixmap*)src;
if ( sx != 0 || sy != 0 ||
sw != pm->width() || sh != pm->height() || ignoreMask ) {
TQPixmap *tmp = new TQPixmap( sw, sh, pm->depth() );
bitBlt( tmp, 0, 0, pm, sx, sy, sw, sh, TQt::CopyROP, TRUE );
if ( pm->mask() && !ignoreMask ) {
TQBitmap mask( sw, sh );
bitBlt( &mask, 0, 0, pm->mask(), sx, sy, sw, sh,
TQt::CopyROP, TRUE );
tmp->setMask( mask );
}
pm = tmp;
} else {
tmp_pm = FALSE;
}
} else if ( ts == TQInternal::Widget ) {// bitBlt to temp pixmap
pm = new TQPixmap( sw, sh );
TQ_CHECK_PTR( pm );
bitBlt( pm, 0, 0, src, sx, sy, sw, sh );
} else {
#if defined(QT_CHECK_RANGE)
tqWarning( "bitBlt: Cannot bitBlt from device" );
#endif
return;
}
TQPDevCmdParam param[3];
TQRect r(dx, dy, pm->width(), pm->height());
param[0].rect = &r;
param[1].pixmap = pm;
dst->cmd( TQPaintDevice::PdcDrawPixmap, 0, param );
if ( tmp_pm )
delete pm;
return;
}
switch ( ts ) {
case TQInternal::Widget:
case TQInternal::Pixmap:
case TQInternal::System: // OK, can blt from these
break;
default:
#if defined(QT_CHECK_RANGE)
tqWarning( "bitBlt: Cannot bitBlt from device type %x", ts );
#endif
return;
}
switch ( td ) {
case TQInternal::Widget:
case TQInternal::Pixmap:
case TQInternal::System: // OK, can blt to these
break;
default:
#if defined(QT_CHECK_RANGE)
tqWarning( "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 > TQt::LastROP ) {
#if defined(QT_CHECK_RANGE)
tqWarning( "bitBlt: Invalid ROP code" );
#endif
return;
}
if ( dst->handle() == 0 ) {
#if defined(QT_CHECK_NULL)
tqWarning( "bitBlt: Cannot bitBlt to device" );
#endif
return;
}
bool mono_src;
bool mono_dst;
bool include_inferiors = FALSE;
bool graphics_exposure = FALSE;
TQPixmap *src_pm;
TQBitmap *mask;
if ( ts == TQInternal::Pixmap ) {
src_pm = (TQPixmap*)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 = ((TQWidget*)src)->testWFlags(TQt::WPaintUnclipped);
graphics_exposure = td == TQInternal::Widget;
}
if ( td == TQInternal::Pixmap ) {
if ( dst->x11Screen() != src->x11Screen() )
((TQPixmap*)dst)->x11SetScreen( src->x11Screen() );
mono_dst = ((TQPixmap*)dst)->depth() == 1;
((TQPixmap*)dst)->detach(); // changes shared pixmap
} else {
mono_dst = FALSE;
include_inferiors = include_inferiors ||
((TQWidget*)dst)->testWFlags(TQt::WPaintUnclipped);
}
if ( mono_dst && !mono_src ) { // dest is 1-bit pixmap, source is not
#if defined(QT_CHECK_RANGE)
tqWarning( "bitBlt: Incompatible destination pixmap" );
#endif
return;
}
#ifndef TQT_NO_XRENDER
if (src_pm && !mono_src && src_pm->data->alphapm && !ignoreMask ) {
// use RENDER to do the blit
TQPixmap *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() == TQPixmap::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() == TQPixmap::BestOptim ) {
mask->data->maskgc = gc;
} else {
temp_gc = TRUE;
}
}
}
XSetClipOrigin( dpy, gc, dx-sx, dy-sy );
if ( rop != TQt::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 != TQt::CopyROP ) // restore ROP
XSetFunction( dpy, gc, GXcopy );
return;
}
gc = tqt_xget_temp_gc( dst->x11Screen(), mono_dst ); // get a reusable GC
if ( rop != TQt::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 == TQInternal::Widget ) { // set GC colors
TQWidget *w = (TQWidget *)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 = TQt::white.pixel( dst->x11Screen() );
gcvals.foreground = TQt::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 ( ((TQPixmap*)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 != TQt::CopyROP ) // restore ROP
XSetFunction( dpy, gc, GXcopy );
}
/*!
\relates TQPaintDevice
\overload void bitBlt( TQPaintDevice *dst, const TQPoint &dp, const TQPaintDevice *src, const TQRect &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 TQPrinter for all
// paintdevices without breaking bin compatibility.
void TQPaintDevice::setResolution( int )
{
}
/*!\internal
*/
int TQPaintDevice::resolution() const
{
return metric( TQPaintDeviceMetrics::PdmDpiY );
}
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