/*
 * SFVec2f.cpp
 *
 * Copyright (C) 1999 Stephen F. White
 * 
 * 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 2 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 (see the file "COPYING" for details); if 
 * not, write to the Free Software Foundation, Inc., 675 Mass Ave, 
 * Cambridge, MA 02139, USA.
 */

#include <stdio.h>
#include "stdafx.h"
#include "DuneApp.h"

#include "SFVec2f.h"

SFVec2f::SFVec2f(float x, float y)
{
    _value[0] = x; _value[1] = y;
}

SFVec2f::SFVec2f(const float *values)
{
    _value[0] = values[0]; _value[1] = values[1];
}

SFVec2f::SFVec2f(void)
{
    _value[0] = 0.0f; _value[1] = 0.0f;
}

void 
SFVec2f::setValue(float v1, float v2)
{
    _value[0] = v1;
    _value[1] = v2;
}


bool
SFVec2f::equals(const FieldValue *value) const
{
    return value->getType() == SFVEC2F
	&& ((SFVec2f *) value)->getValue(0) == _value[0]
	&& ((SFVec2f *) value)->getValue(1) == _value[1];
}

int SFVec2f::write(int f, int /* indent */) const
{
    RET_ONERROR( mywritef(f, "%g %g\n", _value[0], _value[1]) )
    TheApp->incSelectionLinenumber();
    return 0;
}

MyString
SFVec2f::getEcmaScriptComment(MyString name, int flags) const
{
    const char *indent = ((FieldValue *)this)->getEcmaScriptIndent(flags);
    MyString ret;
    ret = "";
    if (TheApp->GetEcmaScriptAddAllowedValues()) {
        ret += indent;
        ret += "// allowed values:\n";

        ret += indent;
        ret += "   // 2D Vector, 2 floating point numbers\n";
    }
    if (TheApp->GetEcmaScriptAddAllowedComponents()) {
        ret += indent;
        ret += "// allowed components:\n";

        ret += indent;
        ret += "   // x: ";
        ret += name;
        ret += ".x or ";
        ret += name;
        ret += "[0]\n";

        ret += indent;
        ret += "   // y: ";
        ret += name;
        ret += ".y or ";
        ret += name;
        ret += "[1]\n";
    }
    if (TheApp->GetEcmaScriptAddAvailableFunctions()) {
        ret += indent;
        ret += "// available functions:\n";
        if (flags != EL_EVENT_IN) {
            ret += indent;
            ret += "   // ";
            ret += name;
            ret += " = new SFVec2f(float_x, float_y);\n";

            ret += indent;
            ret += "   // ";
            ret += name;
            ret += " = sfvec2f_vec1.add(sfvec2f_vec2);\n";

            ret += indent;
            ret += "   // ";
            ret += name;
            ret += " = sfvec2f_vec1.subtract(sfvec2f_vec2);\n";

            ret += indent;
            ret += "   // ";
            ret += name;
            ret += " = sfvec2f_vec.multiply(float_n);\n";

            ret += indent;
            ret += "   // ";
            ret += name;
            ret += " = sfvec2f_vec.divide(float_n);\n";
        }
        if (flags != EL_EVENT_OUT) {
            ret += indent;
            ret += "   // float_n = ";
            ret += name;
            ret += ".dot(sfvec2f_vec);\n";

            ret += indent;
            ret += "   // int_i = ";
            ret += name;
            ret += ".length();\n";

            ret += indent;
            ret += "   // string_str = ";
            ret += name;
            ret += ".toString();\n";
        }
    }
    if (TheApp->GetEcmaScriptAddExampleUsage()) {
        ret += indent;
        ret += "// example usage:\n";
        if (flags != EL_EVENT_IN) {
             ret += indent;
             ret += "   // ";
             ret += name;
             ret += " = new SFVec2f(3, 5.2);\n";

             ret += indent;
             ret += "   // ";
             ret += name;
             ret += ".y = 0.5;\n";
        } 
        if (flags != EL_EVENT_OUT) {
             ret += indent;
             ret += "   // float_x =";
             ret += name;
             ret += ".x;\n";

             ret += indent;
             ret += "   // float_l =";
             ret += name;
             ret += ".normalize();\n";
        }
        if (flags == EL_FIELD_DEF) {
             ret += indent;
             ret += "   // ";
             ret += name;
             ret += " = ";
             ret += name;
             ret += ".multiply(5.2);\n";
        } 
    }
    return ret;
}