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, 167 insertions, 0 deletions

diff --git a/kdm/kfrontend/themer/kdmlayout.cpp b/kdm/kfrontend/themer/kdmlayout.cpp
new file mode 100644
index 000000000..ed93be264
--- /dev/null
+++ b/kdm/kfrontend/themer/kdmlayout.cpp
@@ -0,0 +1,167 @@
+/*
+ *  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 "kdmlayout.h"
+#include "kdmitem.h"
+
+#include <kdebug.h>
+
+#include <qdom.h>
+#include <qrect.h>
+
+KdmLayoutFixed::KdmLayoutFixed( const QDomNode &/*node*/ )
+{
+	//Parsing FIXED parameters on 'node' [NONE!]
+}
+
+void
+KdmLayoutFixed::update( const QRect &parentGeometry, bool force )
+{
+	kdDebug() << "KdmLayoutFixed::update " << parentGeometry << endl;
+
+	// I can't layout children if the parent rectangle is not valid
+	if (parentGeometry.width() < 0 || parentGeometry.height() < 0) {
+		kdDebug() << "invalid\n";
+		return;
+	}
+	// For each child in list I ask their hinted size and set it!
+	for (QValueList<KdmItem *>::ConstIterator it = m_children.begin(); it != m_children.end(); ++it)
+		(*it)->setGeometry( (*it)->placementHint( parentGeometry ), force );
+}
+
+KdmLayoutBox::KdmLayoutBox( const QDomNode &node )
+{
+	//Parsing BOX parameters
+	QDomNode n = node;
+	QDomElement el = n.toElement();
+	box.isVertical = el.attribute( "orientation", "vertical" ) != "horizontal";
+	box.xpadding = el.attribute( "xpadding", "0" ).toInt();
+	box.ypadding = el.attribute( "ypadding", "0" ).toInt();
+	box.spacing = el.attribute( "spacing", "0" ).toInt();
+	box.minwidth = el.attribute( "min-width", "0" ).toInt();
+	box.minheight = el.attribute( "min-height", "0" ).toInt();
+	box.homogeneous = el.attribute( "homogeneous", "false" ) == "true";
+}
+
+void
+KdmLayoutBox::update( const QRect &parentGeometry, bool force )
+{
+	kdDebug() << this << " update " << parentGeometry << endl;
+
+	// I can't layout children if the parent rectangle is not valid
+	if (!parentGeometry.isValid() || parentGeometry.isEmpty())
+		return;
+
+	// Check if box size was computed. If not compute it
+	// TODO check if this prevents updating changing items
+//	if (!hintedSize.isValid())
+//		sizeHint();
+
+//	kdDebug() << this << " hintedSize " << hintedSize << endl;
+
+	//XXX why was this asymmetric? it broke things big time.
+	QRect childrenRect = /*box.isVertical ? QRect( parentGeometry.topLeft(), hintedSize ) :*/ parentGeometry;
+	// Begin cutting the parent rectangle to attach children on the right place
+	childrenRect.addCoords( box.xpadding, box.ypadding, -box.xpadding, -box.ypadding );
+
+	kdDebug() << this << " childrenRect " << childrenRect << endl;
+
+	// For each child in list ...
+	if (box.homogeneous) {
+		int ccnt = 0;
+		for (QValueList<KdmItem *>::ConstIterator it = m_children.begin(); it != m_children.end(); ++it)
+			if (!(*it)->isExplicitlyHidden())
+				ccnt++;
+		int height = (childrenRect.height() - (ccnt - 1) * box.spacing) / ccnt;
+		int width = (childrenRect.width() - (ccnt - 1) * box.spacing) / ccnt;
+
+		for (QValueList<KdmItem *>::ConstIterator it = m_children.begin(); it != m_children.end(); ++it) {
+			if ((*it)->isExplicitlyHidden())
+				continue;
+			if (box.isVertical) {
+				QRect temp( childrenRect.left(), childrenRect.top(), childrenRect.width(), height );
+				(*it)->setGeometry( temp, force );
+				childrenRect.setTop( childrenRect.top() + height + box.spacing );
+			} else {
+				QRect temp( childrenRect.left(), childrenRect.top(), width, childrenRect.height() );
+				kdDebug() << "placement " << *it << " " << temp << " " << (*it)->placementHint( temp ) << endl;
+				temp = (*it)->placementHint( temp );
+				(*it)->setGeometry( temp, force );
+				childrenRect.setLeft( childrenRect.left() + width + box.spacing );
+			}
+		}
+	} else {
+		for (QValueList<KdmItem *>::ConstIterator it = m_children.begin(); it != m_children.end(); ++it) {
+			if ((*it)->isExplicitlyHidden())
+				continue;
+
+			QRect temp = childrenRect, itemRect;
+			if (box.isVertical) {
+				temp.setHeight( 0 );
+				itemRect = (*it)->placementHint( temp );
+				temp.setHeight( itemRect.height() );
+				childrenRect.setTop( childrenRect.top() + itemRect.size().height() + box.spacing );
+			} else {
+				temp.setWidth( 0 );
+				itemRect = (*it)->placementHint( temp );
+				kdDebug() << this << " placementHint " << *it << " " << temp << " " << itemRect << endl;
+				temp.setWidth( itemRect.width() );
+				childrenRect.setLeft( childrenRect.left() + itemRect.size().width() + box.spacing );
+				kdDebug() << "childrenRect after " << *it << " " << childrenRect << endl;
+			}
+			itemRect = (*it)->placementHint( temp );
+			kdDebug() << this << " placementHint2 " << *it << " " << temp << " " << itemRect << endl;
+			(*it)->setGeometry( itemRect, force );
+		}
+	}
+}
+
+//FIXME truly experimental (is so close to greeter_geometry.c)
+QSize
+KdmLayoutBox::sizeHint()
+{
+	// Sum up area taken by children
+	int w = 0, h = 0;
+	for (QValueList<KdmItem *>::ConstIterator it = m_children.begin(); it != m_children.end(); ++it) {
+		QSize s = (*it)->placementHint( QRect() ).size();
+		if (box.isVertical) {
+			if (s.width() > w)
+				w = s.width();
+			h += s.height();
+		} else {
+			if (s.height() > h)
+				h = s.height();
+			w += s.width();
+		}
+	}
+
+	// Add padding and items spacing
+	w += 2 * box.xpadding;
+	h += 2 * box.ypadding;
+	if (box.isVertical)
+		h += box.spacing * (m_children.count() - 1);
+	else
+		w += box.spacing * (m_children.count() - 1);
+
+	// Make hint at least equal to minimum size (if set)
+	return QSize( w < box.minwidth ? box.minwidth : w,
+		      h < box.minheight ? box.minheight : h );
+}