MQL5Book/Indicators/p7/SimpleDrawing.mq5

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2025-05-30 16:09:41 +02:00
//+------------------------------------------------------------------+
//| SimpleDrawing.mq5 |
//| Copyright (c) 2022, MetaQuotes Ltd. |
//| https://www.mql5.com |
//+------------------------------------------------------------------+
#property indicator_chart_window
#property indicator_buffers 0
#property indicator_plots 0
#include "SimpleDrawing.mqh"
input int Size = 25;
input ENUM_BASE_CORNER Corner = CORNER_RIGHT_LOWER;
input DRAW::ORIENTATION Orientation = DRAW::VERTICAL;
AutoPtr<DRAW::SimpleDrawing> ShapesDrawing;
//+------------------------------------------------------------------+
//| Indicator initialization function |
//+------------------------------------------------------------------+
void OnInit()
{
ChartSetInteger(0, CHART_MOUSE_SCROLL, false);
ChartSetInteger(0, CHART_EVENT_MOUSE_MOVE, true);
ChartSetInteger(0, CHART_SHOW_DATE_SCALE, false);
ChartSetInteger(0, CHART_SHOW_PRICE_SCALE, false);
ShapesDrawing = new DRAW::SimpleDrawing("DRAW_", Size, Corner, Orientation);
}
//+------------------------------------------------------------------+
//| Indicator calculation function (dummy here) |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
const int prev_calculated,
const int begin,
const double &price[])
{
return rates_total;
}
//+------------------------------------------------------------------+
//| Chart event handler |
//+------------------------------------------------------------------+
void OnChartEvent(const int id, const long &lparam, const double &dparam, const string &sparam)
{
if(id == CHARTEVENT_OBJECT_CLICK)
{
ShapesDrawing[].onObjectClick(id, lparam, dparam, sparam);
}
else if(id == CHARTEVENT_MOUSE_MOVE)
{
ShapesDrawing[].onMouseMove(id, lparam, dparam, sparam);
}
else if(id == CHARTEVENT_CHART_CHANGE)
{
ShapesDrawing[].onChartChange();
}
}
//+------------------------------------------------------------------+
//| Indicator finalization function |
//+------------------------------------------------------------------+
void OnDeinit(const int)
{
ChartSetInteger(0, CHART_MOUSE_SCROLL, true);
ChartSetInteger(0, CHART_EVENT_MOUSE_MOVE, false);
ChartSetInteger(0, CHART_SHOW_DATE_SCALE, true);
ChartSetInteger(0, CHART_SHOW_PRICE_SCALE, true);
}
//+------------------------------------------------------------------+