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124 lines
4.0 KiB
124 lines
4.0 KiB
/*
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Copyright (C) 2010 Timothy Pearson <kb9vqf@pearsoncomputing.net>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <tqt.h>
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#include <ntqpaintdevice.h>
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#ifdef USE_QT4
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// the following is necessary to work around breakage in many versions
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// of XFree86's Xlib.h still in use
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// ### which versions?
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#if defined(_XLIB_H_) // crude hack, but...
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#error "cannot include <X11/Xlib.h> before this file"
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#endif
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#define XRegisterIMInstantiateCallback qt_XRegisterIMInstantiateCallback
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#define XUnregisterIMInstantiateCallback qt_XUnregisterIMInstantiateCallback
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#define XSetIMValues qt_XSetIMValues
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#include <X11/Xlib.h>
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#undef XRegisterIMInstantiateCallback
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#undef XUnregisterIMInstantiateCallback
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#undef XSetIMValues
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#include <X11/Xutil.h>
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#include <X11/Xos.h>
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#include <X11/Xatom.h>
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#include <Qt/qcolormap.h>
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/*!
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Returns the window system handle of the paint device for XRender
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support. Use of this function is not portable. This function will
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return 0 if XRender support is not compiled into Qt, if the
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XRender extension is not supported on the X11 display, or if the
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handle could not be created.
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*/
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Qt::HANDLE QPaintDevice::x11RenderHandle() const
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{
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// #ifndef TQT_NO_XFTFREETYPE
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// return rendhd ? XftDrawPicture( (XftDraw *) rendhd ) : 0;
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// #else
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return 0;
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// #endif // TQT_NO_XFTFREETYPE
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}
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static GC* app_gc_tmp = 0; // temporary GC
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static GC* app_gc_tmp_m = 0; // temporary GC (monochrome)
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static GC create_gc( int scrn, bool monochrome )
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{
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GC gc;
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Display *appDpy = QX11Info::display();
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if ( monochrome ) {
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Pixmap pm = XCreatePixmap( appDpy, RootWindow( appDpy, scrn ), 8, 8, 1 );
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gc = XCreateGC( appDpy, pm, 0, 0 );
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XFreePixmap( appDpy, pm );
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} else {
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if ( QPaintDevice::x11AppDefaultVisual( scrn ) ) {
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gc = XCreateGC( appDpy, RootWindow( appDpy, scrn ), 0, 0 );
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} else {
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Window w;
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XSetWindowAttributes a;
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QColormap cmap_background = QColormap::instance( scrn );
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QColormap cmap_border = QColormap::instance( scrn );
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a.background_pixel = cmap_background.pixel( Qt::black );
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a.border_pixel = cmap_border.pixel( Qt::black );
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a.colormap = QPaintDevice::x11AppColormap( scrn );
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w = XCreateWindow( appDpy, RootWindow( appDpy, scrn ), 0, 0, 100, 100,
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0, QPaintDevice::x11AppDepth( scrn ), InputOutput,
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(Visual*)QPaintDevice::x11AppVisual( scrn ),
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CWBackPixel|CWBorderPixel|CWColormap, &a );
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gc = XCreateGC( appDpy, w, 0, 0 );
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XDestroyWindow( appDpy, w );
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}
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}
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XSetGraphicsExposures( appDpy, gc, False );
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return gc;
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}
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GC qt_xget_temp_gc( int scrn, bool monochrome ) // get temporary GC
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{
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int appScreenCount = QApplication::desktop()->numScreens();
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if ( scrn < 0 || scrn >= appScreenCount ) {
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qDebug("invalid screen (tmp) %d %d", scrn, appScreenCount );
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QWidget* bla = 0;
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bla->setName("hello");
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}
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GC gc;
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if ( monochrome ) {
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if ( !app_gc_tmp_m ) // create GC for bitmap
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memset( (app_gc_tmp_m = new GC[appScreenCount]), 0, appScreenCount * sizeof( GC ) );
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if ( !app_gc_tmp_m[scrn] )
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app_gc_tmp_m[scrn] = create_gc( scrn, TRUE );
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gc = app_gc_tmp_m[scrn];
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} else { // create standard GC
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if ( !app_gc_tmp )
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memset( (app_gc_tmp = new GC[appScreenCount]), 0, appScreenCount * sizeof( GC ) );
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if ( !app_gc_tmp[scrn] )
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app_gc_tmp[scrn] = create_gc( scrn, FALSE );
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gc = app_gc_tmp[scrn];
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}
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return gc;
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}
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#endif // USE_QT4
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