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/*
* 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 <tqdom.h>
#include <tqrect.h>
KdmLayoutFixed::KdmLayoutFixed( const TQDomNode &/*node*/ )
{
//Parsing FIXED parameters on 'node' [NONE!]
}
void
KdmLayoutFixed::update( const TQRect &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 (TQValueList<KdmItem *>::ConstIterator it = m_children.begin(); it != m_children.end(); ++it)
(*it)->setGeometry( (*it)->placementHint( parentGeometry ), force );
}
KdmLayoutBox::KdmLayoutBox( const TQDomNode &node )
{
//Parsing BOX parameters
TQDomNode n = node;
TQDomElement 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 TQRect &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.
TQRect childrenRect = /*box.isVertical ? TQRect( 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 (TQValueList<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 (TQValueList<KdmItem *>::ConstIterator it = m_children.begin(); it != m_children.end(); ++it) {
if ((*it)->isExplicitlyHidden())
continue;
if (box.isVertical) {
TQRect temp( childrenRect.left(), childrenRect.top(), childrenRect.width(), height );
(*it)->setGeometry( temp, force );
childrenRect.setTop( childrenRect.top() + height + box.spacing );
} else {
TQRect 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 (TQValueList<KdmItem *>::ConstIterator it = m_children.begin(); it != m_children.end(); ++it) {
if ((*it)->isExplicitlyHidden())
continue;
TQRect 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 (TQValueList<KdmItem *>::ConstIterator it = m_children.begin(); it != m_children.end(); ++it) {
TQSize s = (*it)->placementHint( TQRect() ).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 TQSize( w < box.minwidth ? box.minwidth : w,
h < box.minheight ? box.minheight : h );
}
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