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Diffstat (limited to 'karbon/visitors/vselectnodes.cc')
| -rw-r--r-- | karbon/visitors/vselectnodes.cc | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/karbon/visitors/vselectnodes.cc b/karbon/visitors/vselectnodes.cc new file mode 100644 index 00000000..00f56de3 --- /dev/null +++ b/karbon/visitors/vselectnodes.cc @@ -0,0 +1,153 @@ +/* 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.contains( 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.contains( 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.parent(); + 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.contains( 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.parent(); + 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 ); + } +} + |