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/*
VeroRoute - Qt based Veroboard/Perfboard/PCB layout & routing application.
Copyright (C) 2017 Alex Lawrow ( dralx@users.sourceforge.net )
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "Common.h"
struct Simplex
{
public:
static int GetLetterIndex(char c)
{
const int index = ( c - ' ' );
return ( index >= 0 && index < 95 ) ? index : -1; // -1 ==> unsupported character
}
static int GetLetterData(int i, int j)
{
return ( i < 95 && j < 112 ) ? sm_data[static_cast<size_t>(i)][static_cast<size_t>(j)] : -1;
}
static void CalcXlimits(int i, std::pair<int,int>& o)
{
if ( i == 0 ) { o.first = 0; o.second = 5; return; } // ' ' character
o.first = INT_MAX; o.second = INT_MIN;
const int jEnd = 2 + 2 * GetLetterData(i, 0);
for (int j = 2; j < jEnd; j += 2) // Loop x,y pairs
{
const int ix = GetLetterData(i, j); // Read x
const int iy = GetLetterData(i, j+1); // Read y
if ( ix == -1 && iy == -1 ) continue;
o.first = std::min(o.first, ix);
o.second = std::max(o.second, ix);
}
}
static const std::pair<int,int>& GetXlimits(int i)
{
if ( sm_xLimits.empty() ) // If cache is empty ...
{
sm_xLimits.resize(95); // ... build it
for (int ii = 0; ii < 95; ii++) CalcXlimits(ii, sm_xLimits[static_cast<size_t>(ii)]);
}
return sm_xLimits[static_cast<size_t>(i)]; // Read cache
}
private:
static std::vector< std::vector<int> > sm_data; // Data for ASCII characters 32 to 126 inclusive
static std::vector< std::pair<int,int> > sm_xLimits; // A cache of the min/max X values for each letter
};
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