Robin Gareus
4050ca5633
Copyright-holder and year information is extracted from git log. git history begins in 2005. So (C) from 1998..2005 is lost. Also some (C) assignment of commits where the committer didn't use --author.
84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
/*
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* Copyright (C) 2014 David Robillard <d@drobilla.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __ardour_item_counts_h__
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#define __ardour_item_counts_h__
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#include <cstddef>
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#include <map>
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#include <utility>
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#include "ardour/data_type.h"
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#include "evoral/Parameter.hpp"
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/** A count of various GUI items.
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*
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* This is used to keep track of 'consumption' of a selection when pasting, but
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* may be useful elsewhere.
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*/
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class ItemCounts
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{
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public:
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ItemCounts() : _notes(0) {}
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size_t n_playlists(ARDOUR::DataType t) const { return get_n(t, _playlists); }
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size_t n_regions(ARDOUR::DataType t) const { return get_n(t, _regions); }
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size_t n_lines(Evoral::Parameter t) const { return get_n(t, _lines); }
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size_t n_notes() const { return _notes; }
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void increase_n_playlists(ARDOUR::DataType t, size_t delta=1) {
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increase_n(t, _playlists, delta);
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}
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void increase_n_regions(ARDOUR::DataType t, size_t delta=1) {
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increase_n(t, _regions, delta);
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}
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void increase_n_lines(Evoral::Parameter t, size_t delta=1) {
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increase_n(t, _lines, delta);
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}
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void increase_n_notes(size_t delta=1) { _notes += delta; }
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private:
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template<typename Key>
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size_t
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get_n(const Key& key, const typename std::map<Key, size_t>& counts) const {
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typename std::map<Key, size_t>::const_iterator i = counts.find(key);
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return (i == counts.end()) ? 0 : i->second;
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}
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template<typename Key>
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void
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increase_n(const Key& key, typename std::map<Key, size_t>& counts, size_t delta) {
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typename std::map<Key, size_t>::iterator i = counts.find(key);
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if (i != counts.end()) {
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i->second += delta;
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} else {
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counts.insert(std::make_pair(key, delta));
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}
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}
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std::map<ARDOUR::DataType, size_t> _playlists;
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std::map<ARDOUR::DataType, size_t> _regions;
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std::map<Evoral::Parameter, size_t> _lines;
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size_t _notes;
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};
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#endif /* __ardour_item_counts_h__ */
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