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Diffstat (limited to 'tdm/kfrontend/themer/tdmlayout.cpp')
-rw-r--r-- | tdm/kfrontend/themer/tdmlayout.cpp | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/tdm/kfrontend/themer/tdmlayout.cpp b/tdm/kfrontend/themer/tdmlayout.cpp new file mode 100644 index 000000000..9a277a7a3 --- /dev/null +++ b/tdm/kfrontend/themer/tdmlayout.cpp @@ -0,0 +1,168 @@ +/* + * 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 "tdmlayout.h" +#include "tdmconfig.h" +#include "tdmitem.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() << timestamp() << " KdmLayoutFixed::update " << parentGeometry << endl; + + // I can't layout children if the parent rectangle is not valid + if (parentGeometry.width() < 0 || parentGeometry.height() < 0) { + kdDebug() << timestamp() << " 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() << timestamp() << " 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() << timestamp() << " 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) +TQSize +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 ); +} |