Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

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 <[email protected]>
+ *  Copyright (C) 2004 by Enrico Ros <[email protected]>
+ *  Copyright (C) 2004 by Stephan Kulow <[email protected]>
+ *  Copyright (C) 2004 by Oswald Buddenhagen <[email protected]>
+ *
+ *  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"