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/* This file is part of the KDE project
Copyright (C) 2002, The Karbon Developers
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "vpath.h"
#include "vsegment.h"
#include "vselectnodes.h"
#include "vlayer.h"
#include "vdocument.h"
void
VSelectNodes::visitVSubpath( VSubpath& path )
{
path.first();
VSegment *curr = path.current();
while( curr )
{
if( m_rect.isEmpty() )
{
for( int i = 0; i < curr->degree(); i++ )
curr->selectPoint( i, m_select );
setSuccess();
}
else
{
if( m_exclusive )
{
// we are in exclusive mode, so deselect all nodes first
for( int i = 0; i < curr->degree(); i++ )
curr->selectPoint( i, false );
}
if( curr->isCurve() )
{
// select all control points inside the selection rect
for( int i = 0; i < curr->degree()-1; ++i )
{
if( m_rect.tqcontains( curr->point( i ) ) )
{
curr->selectPoint( i, m_select );
setSuccess();
}
}
VSegment* prev = curr->prev();
// make sure the last control point of the previous segment and the first control point
// of the current segment are selected if:
// - both segments are curves with a smooth transition and
// - the previous segment's knot is selected or
// - one of the above mentioned control points is already selected
if( prev )
{
if( curr->pointIsSelected( 0 ) == m_select )
{
if( prev->isCurve() && prev->isSmooth() )
prev->selectPoint( prev->degree()-2, m_select );
}
else
{
if( prev->knotIsSelected() || ( prev->isCurve() && prev->isSmooth() && prev->pointIsSelected( prev->degree()-2 ) ) )
curr->selectPoint( 0, m_select );
}
}
}
if( m_rect.tqcontains( curr->knot() ) )
{
curr->selectKnot( m_select );
// select the last control point before the knot, if segment is curve
if( curr->isCurve() && m_select )
curr->selectPoint( curr->degree()-2 );
setSuccess();
}
}
curr = curr->next();
}
// select first node as well
if( path.isClosed() && path.getLast()->knotIsSelected() )
path.getFirst()->selectKnot( m_select );
}
void
VSelectNodes::visitVLayer( VLayer& layer )
{
VDocument* doc = (VDocument*)layer.tqparent();
if ( ( layer.state() != VObject::deleted ) &&
( ( doc->selectionMode() == VDocument::AllLayers ) ||
( doc->selectionMode() == VDocument::VisibleLayers && ( layer.state() == VObject::normal || layer.state() == VObject::normal_locked ) ) ||
( doc->selectionMode() == VDocument::SelectedLayers && layer.selected() ) ||
( doc->selectionMode() == VDocument::ActiveLayer && doc->activeLayer() == &layer ) ) )
{
VObjectListIterator itr( layer.objects() );
for( ; itr.current(); ++itr )
itr.current()->accept( *this );
}
}
void
VTestNodes::visitVSubpath( VSubpath& path )
{
path.first();
while( path.current() )
{
for( int i = 0; i < path.current()->degree(); i++ )
if( m_rect.tqcontains( path.current()->point( i ) ) ) //&&
//path.current()->pointIsSelected( i ) )
{
m_segments.append( path.current() );
setSuccess();
// only add a segment once
break;
}
path.next();
}
}
void
VTestNodes::visitVLayer( VLayer& layer )
{
VDocument* doc = (VDocument*)layer.tqparent();
if ( ( layer.state() != VObject::deleted ) &&
( ( doc->selectionMode() == VDocument::AllLayers ) ||
( doc->selectionMode() == VDocument::VisibleLayers && ( layer.state() == VObject::normal || layer.state() == VObject::normal_locked ) ) ||
( doc->selectionMode() == VDocument::SelectedLayers && layer.selected() ) ||
( doc->selectionMode() == VDocument::ActiveLayer && doc->activeLayer() == &layer ) ) )
{
VObjectListIterator itr( layer.objects() );
for( ; itr.current(); ++itr )
itr.current()->accept( *this );
}
}
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