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koffice/kpresenter/autoformEdit/ATFInterpreter.cpp

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// -*- Mode: c++-mode; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 4; -*-
/* This file is part of the KDE project
Copyright (C) 1998, 1999 Reginald Stadlbauer <reggie@kde.org>
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 "ATFInterpreter.h"
#include <tqvaluestack.h>
#include <tqfile.h>
const char ATFInterpreter::PNT_BG[] = "POINT {";
const char ATFInterpreter::X_BG[] = "X {";
const char ATFInterpreter::Y_BG[] = "Y {";
const char ATFInterpreter::ATTR_BG[] = "ATTRIB {";
const char ATFInterpreter::END[] = "}";
// fields
const int ATFInterpreter::ST_WIDTH = 1;
const int ATFInterpreter::ST_HEIGHT = 2;
const int ATFInterpreter::ST_VARIABLE = 3;
const int ATFInterpreter::ST_NUMBER = 4;
const int ATFInterpreter::ST_OPERATOR = 5;
// operators
const char ATFInterpreter::OP_EQUAL = '=';
const char ATFInterpreter::OP_PLUS = '+';
const char ATFInterpreter::OP_MINUS = '-';
const char ATFInterpreter::OP_MULT = '*';
const char ATFInterpreter::OP_DIV = '/';
const char ATFInterpreter::COMMENT = '#';
// allowed variables
const char ATFInterpreter::VAR_1 = 'a';
const char ATFInterpreter::VAR_2 = 'b';
const char ATFInterpreter::VAR_3 = 'c';
const char ATFInterpreter::VAR_4 = 'd';
const char ATFInterpreter::VAR_5 = 'e';
const char ATFInterpreter::VAR_6 = 'f';
const char ATFInterpreter::VAR_X = 'x';
const char ATFInterpreter::VAR_Y = 'y';
const char ATFInterpreter::VAR_VARIA = 'v';
const char ATFInterpreter::VAR_PW = 'p';
const char ATFInterpreter::VAR_W = 'w';
const char ATFInterpreter::VAR_H = 'h';
// level (depth) of the syntax
const int ATFInterpreter::LEVEL_NULL = 0;
const int ATFInterpreter::LEVEL_POINT = 1;
const int ATFInterpreter::LEVEL_X = 2;
const int ATFInterpreter::LEVEL_Y = 3;
const int ATFInterpreter::LEVEL_ATTR = 4;
// numbers
const char ATFInterpreter::NUM_0 = '0';
const char ATFInterpreter::NUM_1 = '1';
const char ATFInterpreter::NUM_2 = '2';
const char ATFInterpreter::NUM_3 = '3';
const char ATFInterpreter::NUM_4 = '4';
const char ATFInterpreter::NUM_5 = '5';
const char ATFInterpreter::NUM_6 = '6';
const char ATFInterpreter::NUM_7 = '7';
const char ATFInterpreter::NUM_8 = '8';
const char ATFInterpreter::NUM_9 = '9';
/******************************************************************/
/* class ATFInterpreter */
/******************************************************************/
/*====================== constructor =============================*/
ATFInterpreter::ATFInterpreter() {
}
/*======================= destrcutor =============================*/
ATFInterpreter::~ATFInterpreter()
{
coordList.setAutoDelete(true);
attrLs.setAutoDelete( true );
}
void ATFInterpreter::load(const TQString & fileName)
{
TQString line;
TQFile ptA(fileName);
coordList.clear();
lines.clear();
if (ptA.open(IO_ReadOnly))
{
while (!ptA.atEnd())
{
ptA.readLine(line,255);
lines.append(line.simplifyWhiteSpace());
}
ptA.close();
interpret();
}
}
TQPointArray ATFInterpreter::getPointArray(int wid,int heig)
{
unsigned int px = 0,py = 0,a = 0,b = 0,c = 0,d = 0,e = 0,f = 0;
unsigned int tmp = 0,num = 0;
bool calc = false,res = false;
char op = OP_EQUAL,var = VAR_1;
TQPtrList<Sign> slp;
TQPointArray pntArray(coordList.count());
if (!coordList.isEmpty())
{
for (coordPtr=coordList.first();coordPtr != 0;coordPtr=coordList.next())
{
for (unsigned int i = 1; i<= 14; i++)
{
switch (i)
{
case 1: slp = coordPtr->pntX.var1; break;
case 2: slp = coordPtr->pntX.var2; break;
case 3: slp = coordPtr->pntX.var3; break;
case 4: slp = coordPtr->pntX.var4; break;
case 5: slp = coordPtr->pntX.var5; break;
case 6: slp = coordPtr->pntX.var6; break;
case 7: slp = coordPtr->pntX.result; break;
case 8: slp = coordPtr->pntY.var1; break;
case 9: slp = coordPtr->pntY.var2; break;
case 10: slp = coordPtr->pntY.var3; break;
case 11: slp = coordPtr->pntY.var4; break;
case 12: slp = coordPtr->pntY.var5; break;
case 13: slp = coordPtr->pntY.var6; break;
case 14: slp = coordPtr->pntY.result; break;
}
if (!slp.isEmpty())
{
tmp = 0;
for (signPtr=slp.first();signPtr != 0;signPtr=slp.next())
{
switch (signPtr->type)
{
case ST_WIDTH: { num = wid; calc = true; res = false;} break;
case ST_HEIGHT: { num = heig; calc = true; res = false;} break;
case ST_OPERATOR: { op = signPtr->op; calc = false; res = false;} break;
case ST_VARIABLE: { var = signPtr->var; calc = false; res = true;} break;
case ST_NUMBER: { num = signPtr->num; calc = true; res = false;} break;
}
if (calc)
{
switch (op)
{
case OP_EQUAL: tmp = num; break;
case OP_PLUS: tmp += num; break;
case OP_MINUS: tmp -= num; break;
case OP_MULT: tmp *= num; break;
case OP_DIV: tmp /= num; break;
}
}
else if (res)
{
switch (var)
{
case VAR_1: num = a; break;
case VAR_2: num = b; break;
case VAR_3: num = c; break;
case VAR_4: num = d; break;
case VAR_5: num = e; break;
case VAR_6: num = f; break;
}
switch (op)
{
case OP_EQUAL: tmp = num; break;
case OP_PLUS: tmp += num; break;
case OP_MINUS: tmp -= num; break;
case OP_MULT: tmp *= num; break;
case OP_DIV: tmp /= num; break;
}
}
}
if (i == 1 || i == 8) a = tmp;
if (i == 2 || i == 9) b = tmp;
if (i == 3 || i == 10) c = tmp;
if (i == 4 || i == 11) d = tmp;
if (i == 5 || i == 12) e = tmp;
if (i == 6 || i == 13) f = tmp;
if (i == 7) px = tmp;
if (i == 14) py = tmp;
}
}
pntArray.setPoint(coordList.tqat(),px,py);
}
}
return pntArray;
}
TQPtrList<ATFInterpreter::AttribList> ATFInterpreter::getAttribList()
{
if(!attrLs.isEmpty())
return attrLs;
AttribList *attribPtr;
if (!coordList.isEmpty())
{
for (coordPtr=coordList.first();coordPtr != 0;coordPtr=coordList.next())
{
attribPtr = new AttribList;
attribPtr->isVariable = coordPtr->isVariable;
attribPtr->pwDiv = coordPtr->pwDiv;
attrLs.append(attribPtr);
}
}
attrLs.setAutoDelete(true);
return attrLs;
}
void ATFInterpreter::interpret()
{
TQValueStack<int> level;
Value value;
bool v = false;
int pw = 1;
CoordStruct coord;
AttribStruct attrib;
level.push(LEVEL_NULL);
for (TQStringList::Iterator it=lines.begin(); it!=lines.end(); ++it)
{
if (!(*it).isEmpty() && (*it).tqat(0) != COMMENT)
{
if (level.top() == LEVEL_NULL)
{
if ((*it) == PNT_BG)
{
coordPtr = new Coord;
level.push(LEVEL_POINT);
}
}
else if (level.top() == LEVEL_POINT)
{
if ((*it) == X_BG)
level.push(LEVEL_X);
else if ((*it) == Y_BG)
level.push(LEVEL_Y);
else if ((*it) == ATTR_BG)
level.push(LEVEL_ATTR);
else if ((*it) == TQString(END))
{
level.pop();
coordList.append(coordPtr);
}
}
else if (level.top() == LEVEL_X || level.top() == LEVEL_Y || level.top() == LEVEL_ATTR)
{
switch (((*it).tqat(0)).latin1())
{
case VAR_1:
{
coord.a = (*it);
value.var1 = getVar(*it);
} break;
case VAR_2:
{
coord.b = (*it);
value.var2 = getVar(*it);
} break;
case VAR_3:
{
coord.c = (*it);
value.var3 = getVar(*it);
} break;
case VAR_4:
{
coord.d = (*it);
value.var4 = getVar(*it);
} break;
case VAR_5:
{
coord.e = (*it);
value.var5 = getVar(*it);
} break;
case VAR_6:
{
coord.f = (*it);
value.var6 = getVar(*it);
} break;
case VAR_X: case VAR_Y:
{
coord.result = (*it);
value.result = getVar(*it);
} break;
case VAR_VARIA:
{
if ((*it).find('0') != -1) v = false;
else v = true;
attrib.isVariable = (*it);
} break;
case VAR_PW:
{
pw = 1; pw = ((*it).tqat(4)).latin1() - 48;
attrib.pwDiv = (*it);
} break;
case '}':
{
switch (level.top())
{
case LEVEL_X:
{
coordPtr->pntX = value;
coord.a = TQString();
coord.b = TQString();
coord.c = TQString();
coord.d = TQString();
coord.e = TQString();
coord.f = TQString();
coord.result = TQString();
} break;
case LEVEL_Y:
{
coordPtr->pntY = value;
coord.a = TQString();
coord.b = TQString();
coord.c = TQString();
coord.d = TQString();
coord.e = TQString();
coord.f = TQString();
coord.result = TQString();
} break;
case LEVEL_ATTR:
{
coordPtr->isVariable = v;
coordPtr->pwDiv = pw;
pw = 1;
v = false;
attrib.isVariable = TQString();
attrib.pwDiv = 1;
} break;
}
level.pop();
} break;
}
}
}
}
}
TQPtrList<ATFInterpreter::Sign> ATFInterpreter::getVar(const TQString &s)
{
TQPtrList<Sign> list;
for (unsigned int i=1; i<s.length(); ++i)
{
if(s.tqat(i)==' ')
continue;
signPtr = new Sign;
switch (s.tqat(i).latin1())
{
case VAR_W: signPtr->type = ST_WIDTH; break;
case VAR_H: signPtr->type = ST_HEIGHT; break;
case VAR_1:
{
signPtr->type = ST_VARIABLE;
signPtr->var = VAR_1;
} break;
case VAR_2:
{
signPtr->type = ST_VARIABLE;
signPtr->var = VAR_2;
} break;
case VAR_3:
{
signPtr->type = ST_VARIABLE;
signPtr->var = VAR_3;
} break;
case VAR_4:
{
signPtr->type = ST_VARIABLE;
signPtr->var = VAR_4;
} break;
case VAR_5:
{
signPtr->type = ST_VARIABLE;
signPtr->var = VAR_5;
} break;
case VAR_6:
{
signPtr->type = ST_VARIABLE;
signPtr->var = VAR_6;
} break;
case OP_EQUAL:
{
signPtr->type = ST_OPERATOR;
signPtr->op = OP_EQUAL;
} break;
case OP_PLUS:
{
signPtr->type = ST_OPERATOR;
signPtr->op = OP_PLUS;
} break;
case OP_MINUS:
{
signPtr->type = ST_OPERATOR;
signPtr->op = OP_MINUS;
} break;
case OP_DIV:
{
signPtr->type = ST_OPERATOR;
signPtr->op = OP_DIV;
} break;
case OP_MULT:
{
signPtr->type = ST_OPERATOR;
signPtr->op = OP_MULT;
} break;
case NUM_0: case NUM_1: case NUM_2: case NUM_3: case NUM_4:
case NUM_5: case NUM_6: case NUM_7: case NUM_8: case NUM_9:
{
signPtr->type = ST_NUMBER;
if (s.length() - 1 > i)
{
switch (s.tqat(i+1).latin1())
{
case NUM_0: case NUM_1: case NUM_2: case NUM_3: case NUM_4:
case NUM_5: case NUM_6: case NUM_7: case NUM_8: case NUM_9:
{
signPtr->num = (s.tqat(i).latin1() - 48) * 10 + s.tqat(i+1).latin1() - 48;
i++;
} break;
default:
signPtr->num = s.tqat(i).latin1() - 48; break;
}
}
else
signPtr->num = s.tqat(i).latin1() - 48;
} break;
}
list.append(signPtr);
}
return list;
}