diff options
Diffstat (limited to 'client/myrootpixmap.cc')
| -rw-r--r-- | client/myrootpixmap.cc | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/client/myrootpixmap.cc b/client/myrootpixmap.cc new file mode 100644 index 0000000..9412256 --- /dev/null +++ b/client/myrootpixmap.cc @@ -0,0 +1,200 @@ +/* vi: ts=8 sts=4 sw=4 + * + * $Id: krootpixmap.cpp,v 1.20 2003/06/01 01:49:31 hadacek Exp $ + * + * This file is part of the KDE project, module kdeui. + * Copyright (C) 1999,2000 Geert Jansen <jansen@kde.org> + * + * You can Freely distribute this program under the GNU Library + * General Public License. See the file "COPYING.LIB" for the exact + * licensing terms. + */ + +/* Modified by Sascha Hlusiak */ + +#include <qwidget.h> +#include <qtimer.h> +#include <qrect.h> +#include <qimage.h> + +#ifndef Q_WS_QWS //FIXME +#include <kapplication.h> +#include <kimageeffect.h> +#include <kpixmapio.h> +#include <kwinmodule.h> +#include <kdebug.h> +#include <netwm.h> +#include <dcopclient.h> +#include <qpainter.h> + +#include <ksharedpixmap.h> +#include "myrootpixmap.h" + + + +KMyRootPixmap::KMyRootPixmap( QWidget * widget, const char *name ) + : QObject(widget, name ? name : "KMyRootPixmap" ) +{ + init(); +} + +KMyRootPixmap::KMyRootPixmap( QWidget *, QObject *parent, const char *name ) + : QObject( parent, name ? name : "KMyRootPixmap" ) +{ + init(); +} + +void KMyRootPixmap::init() +{ +// d = new KMyRootPixmapData; +// m_Fade = 0; + m_pPixmap = new KSharedPixmap; +// m_pTimer = new QTimer( this ); + m_bInit = false; + m_bActive = false; + m_Desk=-1; +// m_bCustomPaint = false; + +// connect(kapp, SIGNAL(backgroundChanged(int)), SLOT(slotBackgroundChanged(int))); + connect(m_pPixmap, SIGNAL(done(bool)), SLOT(slotDone(bool))); +// connect(m_pTimer, SIGNAL(timeout()), SLOT(repaint())); + +// d->toplevel = m_pWidget->topLevelWidget(); +// d->toplevel->installEventFilter(this); +} + +KMyRootPixmap::~KMyRootPixmap() +{ + delete m_pPixmap; +// delete d; +} + +int KMyRootPixmap::currentDesktop() const +{ + NETRootInfo rinfo( qt_xdisplay(), NET::CurrentDesktop ); + rinfo.activate(); + return rinfo.currentDesktop(); +} + +void KMyRootPixmap::start() +{ + if (m_bActive) + return; + + m_bActive = true; + enableExports(); + return; +// if (m_bInit) +// repaint(true); +} + +void KMyRootPixmap::stop() +{ + m_bActive = false; +// m_pTimer->stop(); +} + + +void KMyRootPixmap::repaint() +{ + repaint(false); +} + +void KMyRootPixmap::repaint(bool force) +{ +// printf("KMyRootPixmap::repaint(%s)\n",force?"true":"false"); + if ((!force) && (m_Desk==currentDesktop()))return; + + m_Desk = currentDesktop(); + + if (!isAvailable()) + { + emit backgroundUpdated(NULL); + }else{ + // KSharedPixmap will correctly generate a tile for us. + m_pPixmap->loadFromShared(pixmapName(m_Desk)); + updateBackground( m_pPixmap ); + } +} + +bool KMyRootPixmap::isAvailable() +{ + return m_pPixmap->isAvailable(pixmapName(m_Desk)); +} + +QString KMyRootPixmap::pixmapName(int desk) +{ + QString pattern = QString("DESKTOP%1"); + int screen_number = DefaultScreen(qt_xdisplay()); + if (screen_number) { + pattern = QString("SCREEN%1-DESKTOP").arg(screen_number) + "%1"; + } + return pattern.arg( desk ); +} + + +void KMyRootPixmap::enableExports() +{ +// kdDebug(270) << k_lineinfo << "activating background exports.\n"; + DCOPClient *client = kapp->dcopClient(); + if (!client->isAttached()) + client->attach(); + QByteArray data; + QDataStream args( data, IO_WriteOnly ); + args << 1; + + QCString appname( "kdesktop" ); + int screen_number = DefaultScreen(qt_xdisplay()); + if ( screen_number ) + appname.sprintf("kdesktop-screen-%d", screen_number ); + + client->send( appname, "KBackgroundIface", "setExport(int)", data ); +} + + +void KMyRootPixmap::slotDone(bool success) +{ + if (!success) + { +// kdWarning(270) << k_lineinfo << "loading of desktop background failed.\n"; + return; + } + + // We need to test active as the pixmap might become available + // after the widget has been destroyed. + if ( m_bActive ) + updateBackground( m_pPixmap ); +} + +void KMyRootPixmap::updateBackground( KSharedPixmap *spm ) +{ +// printf("KMyRootPixmap::updateBackground(%p)\n",spm); + QPixmap *px=spm; + if (px->isNull() || px->width()==0 || px->height()==0) + { // This is NOT an image, something went wrong, update to plain + emit backgroundUpdated(NULL); + return; + } + KPixmapIO io; + QSize desktopsize(QApplication::desktop()->width(),QApplication::desktop()->height()); + + if (px->rect().size()==desktopsize) + { // Image has already the right dimension, make a quick update + QImage img = io.convertToImage(*spm); + emit backgroundUpdated(&img); + return; + }else{ // we need to create a tiled pixmap and then the image to update + QPixmap pix(desktopsize,spm->depth()); + QPainter pufferPainter(&pix); + + pufferPainter.drawTiledPixmap(pix.rect(),*spm); + + pufferPainter.end(); + + QImage img=io.convertToImage(pix); + emit backgroundUpdated(&img); + } +} + +// #include "krootpixmap.moc" +#endif |