diff options
Diffstat (limited to 'kdm/kfrontend/themer/kdmthemer.cpp')
| -rw-r--r-- | kdm/kfrontend/themer/kdmthemer.cpp | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/kdm/kfrontend/themer/kdmthemer.cpp b/kdm/kfrontend/themer/kdmthemer.cpp new file mode 100644 index 000000000..65eebabf4 --- /dev/null +++ b/kdm/kfrontend/themer/kdmthemer.cpp @@ -0,0 +1,329 @@ +/* + * Copyright (C) 2003 by Unai Garro <ugarro@users.sourceforge.net> + * Copyright (C) 2004 by Enrico Ros <rosenric@dei.unipd.it> + * Copyright (C) 2004 by Stephan Kulow <coolo@kde.org> + * Copyright (C) 2004 by Oswald Buddenhagen <ossi@kde.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "kdmthemer.h" +#include "kdmitem.h" +#include "kdmpixmap.h" +#include "kdmrect.h" +#include "kdmlabel.h" + +#include <kdmconfig.h> +#include <kfdialog.h> + +#include <kiconloader.h> +#include <kimageeffect.h> +#include <klocale.h> +#include <ksimpleconfig.h> +#include <kdebug.h> + +#include <qfile.h> +#include <qfileinfo.h> +//#include <qtimer.h> // animation timer - TODO +#include <qobjectlist.h> +#include <qpainter.h> +#include <qwidget.h> +#include <qregion.h> + +#include <unistd.h> + +/* + * KdmThemer. The main theming interface + */ +KdmThemer::KdmThemer( const QString &_filename, const QString &mode, QWidget *parent ) + : QObject( parent ) + , rootItem( 0 ) + , backBuffer( 0 ) +{ + // Set the mode we're working in + m_currentMode = mode; + + // read the XML file and create DOM tree + QString filename = _filename; + if (!::access( QFile::encodeName( filename + "/GdmGreeterTheme.desktop" ), R_OK )) { + KSimpleConfig cfg( filename + "/GdmGreeterTheme.desktop" ); + cfg.setGroup( "GdmGreeterTheme" ); + filename += '/' + cfg.readEntry( "Greeter" ); + } + QFile opmlFile( filename ); + if (!opmlFile.open( IO_ReadOnly )) { + FDialog::box( widget(), errorbox, i18n( "Cannot open theme file %1" ).arg(filename) ); + return; + } + if (!domTree.setContent( &opmlFile )) { + FDialog::box( widget(), errorbox, i18n( "Cannot parse theme file %1" ).arg(filename) ); + return; + } + // Set the root (screen) item + rootItem = new KdmRect( 0, QDomNode(), "kdm root" ); + connect( rootItem, SIGNAL(needUpdate( int, int, int, int )), + widget(), SLOT(update( int, int, int, int )) ); + + rootItem->setBaseDir( QFileInfo( filename ).dirPath( true ) ); + + // generate all the items defined in the theme + generateItems( rootItem ); + + connect( rootItem, SIGNAL(activated( const QString & )), SIGNAL(activated( const QString & )) ); + +/* *TODO* + // Animation timer + QTimer *time = new QTimer( this ); + time->start( 500 ); + connect( time, SIGNAL(timeout()), SLOT(update()) ) +*/ +} + +KdmThemer::~KdmThemer() +{ + delete rootItem; + delete backBuffer; +} + +inline QWidget * +KdmThemer::widget() +{ + return static_cast<QWidget *>(parent()); +} + +KdmItem * +KdmThemer::findNode( const QString &item ) const +{ + return rootItem->findNode( item ); +} + +void +KdmThemer::updateGeometry( bool force ) +{ + rootItem->setGeometry( QRect( QPoint(), widget()->size() ), force ); +} + +// BEGIN other functions + +void +KdmThemer::widgetEvent( QEvent *e ) +{ + if (!rootItem) + return; + switch (e->type()) { + case QEvent::MouseMove: + { + QMouseEvent *me = static_cast<QMouseEvent *>(e); + rootItem->mouseEvent( me->x(), me->y() ); + } + break; + case QEvent::MouseButtonPress: + { + QMouseEvent *me = static_cast<QMouseEvent *>(e); + rootItem->mouseEvent( me->x(), me->y(), true ); + } + break; + case QEvent::MouseButtonRelease: + { + QMouseEvent *me = static_cast<QMouseEvent *>(e); + rootItem->mouseEvent( me->x(), me->y(), false, true ); + } + break; + case QEvent::Show: + rootItem->show(); + break; + case QEvent::Resize: + updateGeometry( false ); + showStructure( rootItem ); + break; + case QEvent::Paint: + { + QRect paintRect = static_cast<QPaintEvent *>(e)->rect(); + kdDebug() << "paint on: " << paintRect << endl; + + if (!backBuffer) + backBuffer = new QPixmap( widget()->size() ); + if (backBuffer->size() != widget()->size()) + backBuffer->resize( widget()->size() ); + + QPainter p; + p.begin( backBuffer ); + rootItem->paint( &p, paintRect ); + p.end(); + + bitBlt( widget(), paintRect.topLeft(), backBuffer, paintRect ); + } + break; + default: + break; + } +} + +/* +void +KdmThemer::pixmap( const QRect &r, QPixmap *px ) +{ + bitBlt( px, QPoint( 0, 0 ), widget(), r ); +} +*/ + +void +KdmThemer::generateItems( KdmItem *parent, const QDomNode &node ) +{ + if (!parent) + return; + + QDomNodeList subnodeList; //List of subnodes of this node + + /* + * Get the child nodes + */ + if (node.isNull()) { // It's the first node, get its child nodes + QDomElement theme = domTree.documentElement(); + + // Get its tag, and check it's correct ("greeter") + if (theme.tagName() != "greeter") { + kdDebug() << "This does not seem to be a correct theme file." << endl; + return; + } + // Get the list of child nodes + subnodeList = theme.childNodes(); + } else + subnodeList = node.childNodes(); + + /* + * Go through each of the child nodes + */ + for (uint nod = 0; nod < subnodeList.count(); nod++) { + QDomNode subnode = subnodeList.item( nod ); + QDomElement el = subnode.toElement(); + QString tagName = el.tagName(); + + if (tagName == "item") { + if (!willDisplay( subnode )) + continue; + // It's a new item. Draw it + QString type = el.attribute( "type" ); + + KdmItem *newItem = 0; + + if (type == "label") + newItem = new KdmLabel( parent, subnode ); + else if (type == "pixmap") + newItem = new KdmPixmap( parent, subnode ); + else if (type == "rect") + newItem = new KdmRect( parent, subnode ); + else if (type == "entry") { + newItem = new KdmRect( parent, subnode ); + newItem->setType( type ); + } + // newItem = new KdmEntry( parent, subnode ); + //else if (type=="list") + // newItem = new KdmList( parent, subnode ); + else if (type == "svg") + newItem = new KdmPixmap( parent, subnode ); + if (newItem) { + generateItems( newItem, subnode ); + if (el.attribute( "button", "false" ) == "true") + newItem->inheritFromButton( newItem ); + } + } else if (tagName == "box") { + if (!willDisplay( subnode )) + continue; + // It's a new box. Draw it + parent->setBoxLayout( subnode ); + generateItems( parent, subnode ); + } else if (tagName == "fixed") { + if (!willDisplay( subnode )) + continue; + // It's a new box. Draw it + parent->setFixedLayout( subnode ); + generateItems( parent, subnode ); + } + } +} + +bool KdmThemer::willDisplay( const QDomNode &node ) +{ + QDomNode showNode = node.namedItem( "show" ); + + // No "show" node means this item can be displayed at all times + if (showNode.isNull()) + return true; + + QDomElement el = showNode.toElement(); + + QString modes = el.attribute( "modes" ); + if (!modes.isNull()) { + QStringList modeList = QStringList::split( ",", modes ); + + // If current mode isn't in this list, do not display item + if (modeList.find( m_currentMode ) == modeList.end()) + return false; + } + + QString type = el.attribute( "type" ); + if (type == "config" || type == "suspend") + return false; // not implemented (yet) + if (type == "timed") + return _autoLoginDelay != 0; + if (type == "chooser") +#ifdef XDMCP + return _loginMode != LOGIN_LOCAL_ONLY; +#else + return false; +#endif + if (type == "halt" || type == "reboot") + return _allowShutdown != SHUT_NONE; +// if (type == "system") +// return true; + + // All tests passed, item will be displayed + return true; +} + +void +KdmThemer::showStructure( QObject *obj ) +{ + + const QObjectList *wlist = obj->children(); + static int counter = 0; + if (counter == 0) + kdDebug() << "\n\n<======= Widget tree =================" << endl; + if (wlist) { + counter++; + QObjectListIterator it( *wlist ); + QObject *object; + + while ((object = it.current()) != 0) { + ++it; + QString node; + for (int i = 1; i < counter; i++) + node += "-"; + + if (object->inherits( "KdmItem" )) { + KdmItem *widget = (KdmItem *)object; + kdDebug() << node << "|" << widget->type() << " me=" << widget->id << " " << widget->area << endl; + } + + showStructure( object ); + } + counter--; + } + if (counter == 0) + kdDebug() << "\n\n<======= Widget tree =================\n\n" << endl; +} + +#include "kdmthemer.moc" |