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b1796e9107
allows to store and display : the 10 last error messages , the last info messages, and the 10 last status changes
70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
/*
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storestrings.cpp - rolling storage class
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Copyright (c) 2014 Luc Lebosse. All rights reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "storestrings.h"
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#define MAX_STORAGE 20
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STORESTRINGS_CLASS::STORESTRINGS_CLASS (uint8_t size){
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storage_size = (size<MAX_STORAGE)?size:MAX_STORAGE;
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storage = new String[storage_size];
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storage_cursor=0;
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}
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STORESTRINGS_CLASS::~STORESTRINGS_CLASS (){
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delete storage;
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storage_size = 0;
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}
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bool STORESTRINGS_CLASS::add (const char * string){
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//check if if there is something to add
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if (strlen(string)> 0 )
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{ //is current cursor available or need a shift
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if (storage_cursor > storage_size-1)
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{
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for (uint i=0;i<storage_size-1;i++)
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{
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storage[i]=storage[i+1];
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}
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storage_cursor--;
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}
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storage[storage_cursor]=String(string);
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storage_cursor++;
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}
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else return false;
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}
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String STORESTRINGS_CLASS::get_index_at(uint pos)
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{
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if (pos > storage_size-1) return storage[storage_size-1];
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else return storage[pos];
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}
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uint STORESTRINGS_CLASS::get_size()
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{
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return storage_size;
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}
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int STORESTRINGS_CLASS::get_used_max_index()
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{
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if (storage_cursor > storage_size-1) return storage_size-1;
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else return storage_cursor-1;
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}
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