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DrawIndicator.mqh
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DrawIndicator.mqh
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//+------------------------------------------------------------------+
//| EA31337 framework |
//| Copyright 2016-2023, EA31337 Ltd |
//| https://github.com/EA31337 |
//+------------------------------------------------------------------+
/*
* This file 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/>.
*
*/
/**
* @file
* Group of functions intended for working with graphic objects relating to any specified chart.
*/
// Ignore processing of this file if already included.
#ifndef DRAW_INDICATOR_MQH
#define DRAW_INDICATOR_MQH
// Includes.
#include "DictObject.mqh"
#include "Draw.mqh"
#include "Object.mqh"
// Forward declaration.
class IndicatorBase;
class DrawPoint {
public:
datetime time;
double value;
// Operator overloading methods.
void operator=(const DrawPoint& r) {
time = r.time;
value = r.value;
}
// Special methods.
DrawPoint(const DrawPoint& r) : time(r.time), value(r.value) {}
DrawPoint(datetime _time = NULL, double _value = 0) : time(_time), value(_value) {}
};
class DrawIndicator {
protected:
color color_line;
Draw* draw;
IndicatorBase* indi;
public:
// Object variables.
DictObject<string, DrawPoint> last_points;
/* Special methods */
/**
* Class constructor.
*/
DrawIndicator(IndicatorBase* _indi) : indi(_indi) {
// color_line = Object::IsValid(_indi) ? _indi.GetParams().indi_color : clrRed; // @fixme
draw = new Draw();
}
/**
* Class deconstructor.
*/
~DrawIndicator() {
if (draw != NULL) {
delete draw;
}
/* @fixme
for (DictObjectIterator<string, DrawPoint> iter = indis.Begin(); iter.IsValid(); ++iter) {
delete iter.Value();
}
*/
}
/* Setters */
/* Class methods */
/**
* Sets color of line.
*/
void SetColorLine(color _clr) { color_line = _clr; }
/**
* Draw line from the last point.
*/
void DrawLineTo(string _name, datetime _time, double _value, int _window = WINDOW_MAIN) {
if (!last_points.KeyExists(_name)) {
last_points.Set(_name, DrawPoint(_time, _value));
} else {
DrawPoint* last_point = last_points.GetByKey(_name);
draw.TLine(_name + "_" + IntegerToString(_time), last_point.value, _value, last_point.time, _time, color_line,
false, _window);
last_point.time = _time;
last_point.value = _value;
}
}
};
#endif // DRAW_INDICATOR_MQH