97f515985d
git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@2 fdac6126-5c0c-442c-9429-916003d36597
159 lines
5.4 KiB
C++
159 lines
5.4 KiB
C++
//=============================================================================
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//
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// OpenMesh
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// Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen
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// www.openmesh.org
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//
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//-----------------------------------------------------------------------------
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//
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// License
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation, version 2.1.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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//-----------------------------------------------------------------------------
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//
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// $Revision: 1801 $
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// $Date: 2008-05-19 11:53:56 +0200 (Mo, 19. Mai 2008) $
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//
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//=============================================================================
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//=============================================================================
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//
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// CLASS Status
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//
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//=============================================================================
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#ifndef OPENMESH_ATTRIBUTE_STATUS_HH
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#define OPENMESH_ATTRIBUTE_STATUS_HH
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//== INCLUDES =================================================================
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#include <OpenMesh/Core/System/config.h>
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//== NAMESPACES ===============================================================
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namespace OpenMesh {
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namespace Attributes {
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//== CLASS DEFINITION ========================================================
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/** Status bits used by the Status class.
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* \see OpenMesh::Attributes::StatusInfo
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*/
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enum StatusBits {
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DELETED = 1, ///< Item has been deleted
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LOCKED = 2, ///< Item is locked.
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SELECTED = 4, ///< Item is selected.
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HIDDEN = 8, ///< Item is hidden.
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FEATURE = 16, ///< Item is a feature or belongs to a feature.
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TAGGED = 32, ///< Item is tagged.
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TAGGED2 = 64, ///< Alternate bit for tagging an item.
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UNUSED = 128 ///<
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};
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/** \class StatusInfo Status.hh <OpenMesh/Attributes/Status.hh>
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*
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* Add status information to a base class.
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*
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* \see StatusBits
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*/
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class StatusInfo
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{
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public:
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typedef unsigned int value_type;
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StatusInfo() : status_(0) {}
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/// is deleted ?
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bool deleted() const { return is_bit_set(DELETED); }
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/// set deleted
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void set_deleted(bool _b) { change_bit(DELETED, _b); }
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/// is locked ?
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bool locked() const { return is_bit_set(LOCKED); }
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/// set locked
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void set_locked(bool _b) { change_bit(LOCKED, _b); }
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/// is selected ?
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bool selected() const { return is_bit_set(SELECTED); }
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/// set selected
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void set_selected(bool _b) { change_bit(SELECTED, _b); }
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/// is hidden ?
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bool hidden() const { return is_bit_set(HIDDEN); }
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/// set hidden
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void set_hidden(bool _b) { change_bit(HIDDEN, _b); }
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/// is feature ?
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bool feature() const { return is_bit_set(FEATURE); }
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/// set feature
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void set_feature(bool _b) { change_bit(FEATURE, _b); }
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/// is tagged ?
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bool tagged() const { return is_bit_set(TAGGED); }
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/// set tagged
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void set_tagged(bool _b) { change_bit(TAGGED, _b); }
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/// is tagged2 ? This is just one more tag info.
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bool tagged2() const { return is_bit_set(TAGGED2); }
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/// set tagged
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void set_tagged2(bool _b) { change_bit(TAGGED2, _b); }
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/// return whole status
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unsigned int bits() const { return status_; }
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/// set whole status at once
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void set_bits(unsigned int _bits) { status_ = _bits; }
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/// is a certain bit set ?
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bool is_bit_set(unsigned int _s) const { return (status_ & _s) > 0; }
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/// set a certain bit
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void set_bit(unsigned int _s) { status_ |= _s; }
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/// unset a certain bit
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void unset_bit(unsigned int _s) { status_ &= ~_s; }
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/// set or unset a certain bit
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void change_bit(unsigned int _s, bool _b) {
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if (_b) status_ |= _s; else status_ &= ~_s; }
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private:
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value_type status_;
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};
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//=============================================================================
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} // namespace Attributes
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} // namespace OpenMesh
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//=============================================================================
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#endif // OPENMESH_ATTRIBUTE_STATUS_HH defined
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//=============================================================================
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