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refactor: Updated for Colors and Background

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Toh4iem9
2025-12-18 00:23:16 +01:00
parent 964110ea95
commit f0f180ed3e
1 changed files with 82 additions and 43 deletions
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Indicators/MyIndicators/Chart_HeikinAshi_Objects.mq5
+82 -43
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@@ -1,64 +1,94 @@
//+------------------------------------------------------------------+
//| Chart_HeikinAshi_Objects.mq5 |
//| Copyright 2025, xxxxxxxx |
//| Copyright 2025, xxxxxxxx |
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, xxxxxxxx"
#property version "1.10" // Added Width inputs
#property version "1.20" // Updated for Colors and Background
#property description "Draws Heikin Ashi candles using Objects for perfect sharpness."
//--- Include the Tools (Assuming user's path)
#include <MyIncludes\HeikinAshi_Tools.mqh>
#property indicator_chart_window
#property indicator_buffers 4
#property indicator_plots 0
#property indicator_plots 0 // No drawing buffers, only objects
input int InpMaxHistory = 500; // Limit bars to draw
input int InpBodyWidth = 3; // Width of the candle body
input int InpWickWidth = 1; // Width of the candle wick
//--- Inputs
input group "Visual Settings"
input int InpMaxHistory = 500; // Limit bars to draw
input int InpBodyWidth = 3; // Width of the candle body
input int InpWickWidth = 1; // Width of the candle wick
input color InpColorBull = clrCornflowerBlue; // Bullish Color
input color InpColorBear = clrChocolate; // Bearish Color
input bool InpBack = true; // Draw in Background
//--- Buffers (for calculation only)
double BufHA_Open[], BufHA_High[], BufHA_Low[], BufHA_Close[];
//--- Global Objects
CHeikinAshi_Calculator *g_ha_calculator;
string g_prefix;
//+------------------------------------------------------------------+
//| OnInit |
//+------------------------------------------------------------------+
int OnInit()
{
//--- Setup Buffers
SetIndexBuffer(0, BufHA_Open, INDICATOR_CALCULATIONS);
SetIndexBuffer(1, BufHA_High, INDICATOR_CALCULATIONS);
SetIndexBuffer(2, BufHA_Low, INDICATOR_CALCULATIONS);
SetIndexBuffer(3, BufHA_Close, INDICATOR_CALCULATIONS);
//--- Initialize Calculator
g_ha_calculator = new CHeikinAshi_Calculator();
//--- Create Unique Prefix for Objects
g_prefix = "HA_Obj_" + IntegerToString(ChartID()) + "_";
//--- Cleanup stale objects from previous runs
ObjectsDeleteAll(0, g_prefix);
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| OnDeinit |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
if(CheckPointer(g_ha_calculator) != POINTER_INVALID)
delete g_ha_calculator;
//--- Clean up objects created by this indicator
ObjectsDeleteAll(0, g_prefix);
ChartRedraw();
}
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total, const int prev_calculated, const datetime &time[], const double &open[], const double &high[], const double &low[], const double &close[], const long &tick_volume[], const long &volume[], const int &spread[])
//| OnCalculate |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
const int prev_calculated,
const datetime &time[],
const double &open[],
const double &high[],
const double &low[],
const double &close[],
const long &tick_volume[],
const long &volume[],
const int &spread[])
{
if(rates_total < 2)
return(0);
int start_index;
if(prev_calculated == 0)
start_index = 0;
else
start_index = prev_calculated - 1;
//--- 1. Calculate Heikin Ashi Values (Incremental)
int start_index = (prev_calculated > 0) ? prev_calculated - 1 : 0;
g_ha_calculator.Calculate(rates_total, start_index, open, high, low, close,
BufHA_Open, BufHA_High, BufHA_Low, BufHA_Close);
// Draw Objects
//--- 2. Draw/Update Objects
int draw_start = MathMax(start_index, rates_total - InpMaxHistory);
for(int i = draw_start; i < rates_total; i++)
@@ -66,41 +96,50 @@ int OnCalculate(const int rates_total, const int prev_calculated, const datetime
string name_body = g_prefix + "B_" + IntegerToString(i);
string name_wick = g_prefix + "W_" + IntegerToString(i);
double o = BufHA_Open[i];
double c = BufHA_Close[i];
double h = BufHA_High[i];
double l = BufHA_Low[i];
double ha_open = BufHA_Open[i];
double ha_close = BufHA_Close[i];
double ha_high = BufHA_High[i];
double ha_low = BufHA_Low[i];
datetime t = time[i];
color col = (c > o) ? clrCornflowerBlue : clrChocolate;
// Determine Color
bool is_bull = (ha_close >= ha_open);
color candle_color = is_bull ? InpColorBull : InpColorBear;
// Body
if(ObjectFind(0, name_body) < 0)
{
ObjectCreate(0, name_body, OBJ_RECTANGLE, 0, time[i], o, time[i], c);
}
//--- Draw Wick (Low to High)
UpdateObject(name_wick, t, ha_high, ha_low, InpWickWidth, candle_color);
if(ObjectFind(0, name_body) < 0)
{
ObjectCreate(0, name_body, OBJ_TREND, 0, time[i], o, time[i], c);
ObjectSetInteger(0, name_body, OBJPROP_RAY, false);
}
ObjectSetInteger(0, name_body, OBJPROP_COLOR, col);
ObjectSetInteger(0, name_body, OBJPROP_WIDTH, InpBodyWidth); // Body Width
ObjectMove(0, name_body, 0, time[i], o);
ObjectMove(0, name_body, 1, time[i], c);
// Wick
if(ObjectFind(0, name_wick) < 0)
{
ObjectCreate(0, name_wick, OBJ_TREND, 0, time[i], h, time[i], l);
ObjectSetInteger(0, name_wick, OBJPROP_RAY, false);
}
ObjectSetInteger(0, name_wick, OBJPROP_COLOR, col);
ObjectSetInteger(0, name_wick, OBJPROP_WIDTH, InpWickWidth); // Wick Width
ObjectMove(0, name_wick, 0, time[i], h);
ObjectMove(0, name_wick, 1, time[i], l);
//--- Draw Body (Open to Close)
UpdateObject(name_body, t, ha_open, ha_close, InpBodyWidth, candle_color);
}
return(rates_total);
}
//+------------------------------------------------------------------+
//| Helper: Create or Update Trend Object |
//+------------------------------------------------------------------+
void UpdateObject(string name, datetime time, double price1, double price2, int width, color col)
{
// If object doesn't exist, create it
if(ObjectFind(0, name) < 0)
{
ObjectCreate(0, name, OBJ_TREND, 0, time, price1, time, price2);
// Essential properties for "Candle-like" appearance
ObjectSetInteger(0, name, OBJPROP_RAY, false);
ObjectSetInteger(0, name, OBJPROP_SELECTABLE, false); // Prevent accidental selection
ObjectSetInteger(0, name, OBJPROP_HIDDEN, true); // Hide from Object List (optional)
}
else
{
ObjectMove(0, name, 0, time, price1);
ObjectMove(0, name, 1, time, price2);
}
// Update visual properties
ObjectSetInteger(0, name, OBJPROP_COLOR, col);
ObjectSetInteger(0, name, OBJPROP_WIDTH, width);
ObjectSetInteger(0, name, OBJPROP_BACK, InpBack); // Set Background property
}
//+------------------------------------------------------------------+
//+------------------------------------------------------------------+