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refactor: 7.10

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This commit is contained in:
Toh4iem9
2025-09-26 13:17:02 +02:00
parent d1620befca
commit 52cd35ec13
1 changed files with 33 additions and 32 deletions
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Scripts/MyScripts/CalculateMarginSwap.mq5
+33 -32
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@@ -5,26 +5,18 @@
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, xxxxxxxx"
#property link ""
#property version "6.02"
#property description "Calculates margin for a custom leverage using official MQL5 formulas."
#property version "7.10"
#property description "Calculates required margin for a custom Margin Rate (%) and swap costs."
#property description "Uses official MQL5 formulas for various instrument types."
#property description "Leverage to Margin Rate Conversion:"
#property description "1:1=100%, 1:2=50%, 1:5=20%, 1:10=10%, 1:20=5%, 1:30=3.33%"
//--- show the inputs window when the script is launched
#property script_show_inputs
//--- Enum for selectable leverage
enum ENUM_LEVERAGE
{
L_1_to_1 = 1,
L_1_to_2 = 2,
L_1_to_5 = 5,
L_1_to_10 = 10,
L_1_to_20 = 20,
L_1_to_30 = 30
};
//--- Input for the user to specify the position size and leverage
input double InpLotSize = 0.1;
input ENUM_LEVERAGE InpLeverage = L_1_to_1;
//--- Input for the user to specify the position size and margin rate
input double InpLotSize = 0.1;
input double InpMarginRatePercent = 5.0; // Margin Rate in percent (e.g., 5.0 for 5% margin, which is 1:20 leverage)
//--- Forward declarations
string DayOfWeekToString(ENUM_DAY_OF_WEEK day);
@@ -49,8 +41,8 @@ void OnStart()
string description = SymbolInfoString(symbol, SYMBOL_DESCRIPTION);
string margin_currency = SymbolInfoString(symbol, SYMBOL_CURRENCY_MARGIN);
//--- 2. Calculate Required Margin with CUSTOM LEVERAGE (Official Formulas) ---
double margin_1_to_1 = 0;
//--- 2. Calculate the position's full Notional Value ---
double nominal_value = 0;
double contract_size = SymbolInfoDouble(symbol, SYMBOL_TRADE_CONTRACT_SIZE);
double current_price = SymbolInfoDouble(symbol, SYMBOL_ASK);
@@ -60,7 +52,7 @@ void OnStart()
{
case SYMBOL_CALC_MODE_FOREX:
{
margin_1_to_1 = InpLotSize * contract_size;
nominal_value = InpLotSize * contract_size;
break;
}
@@ -69,7 +61,7 @@ void OnStart()
case SYMBOL_CALC_MODE_EXCH_STOCKS:
case SYMBOL_CALC_MODE_SERV_COLLATERAL:
{
margin_1_to_1 = InpLotSize * contract_size * current_price;
nominal_value = InpLotSize * contract_size * current_price;
break;
}
@@ -77,9 +69,9 @@ void OnStart()
case SYMBOL_CALC_MODE_EXCH_FUTURES:
case SYMBOL_CALC_MODE_EXCH_FUTURES_FORTS:
{
margin_1_to_1 = InpLotSize * SymbolInfoDouble(symbol, SYMBOL_MARGIN_INITIAL);
if(InpLeverage != L_1_to_1)
Print("Warning: Leverage simulation might be inaccurate for Futures as their margin is fixed.");
nominal_value = InpLotSize * SymbolInfoDouble(symbol, SYMBOL_MARGIN_INITIAL);
if(InpMarginRatePercent != 100.0)
Print("Warning: Margin Rate is not applicable for Futures. Showing fixed initial margin.");
break;
}
@@ -88,7 +80,7 @@ void OnStart()
double tick_value = SymbolInfoDouble(symbol, SYMBOL_TRADE_TICK_VALUE);
double tick_size = SymbolInfoDouble(symbol, SYMBOL_TRADE_TICK_SIZE);
if(tick_size > 0)
margin_1_to_1 = InpLotSize * contract_size * tick_value / tick_size;
nominal_value = InpLotSize * contract_size * tick_value / tick_size;
break;
}
@@ -99,18 +91,27 @@ void OnStart()
}
}
double margin_required = margin_1_to_1 / (double)InpLeverage;
if(margin_currency != account_currency)
{
double conversion_rate = GetConversionRate(margin_currency, account_currency);
if(conversion_rate > 0)
margin_required *= conversion_rate;
nominal_value *= conversion_rate;
else
Print("Warning: Could not find conversion rate from ", margin_currency, " to ", account_currency, ". Margin value is in ", margin_currency, ".");
Print("Warning: Could not find conversion rate from ", margin_currency, " to ", account_currency, ". Nominal value is in ", margin_currency, ".");
}
//--- 3. Swap Calculation ---
//--- 3. Calculate the final margin based on the notional value and the input margin rate
double margin_required;
if(calc_mode == SYMBOL_CALC_MODE_FUTURES || calc_mode == SYMBOL_CALC_MODE_EXCH_FUTURES || calc_mode == SYMBOL_CALC_MODE_EXCH_FUTURES_FORTS)
{
margin_required = nominal_value;
}
else
{
margin_required = nominal_value * (InpMarginRatePercent / 100.0);
}
//--- 4. Swap Calculation ---
ENUM_SYMBOL_SWAP_MODE swap_mode = (ENUM_SYMBOL_SWAP_MODE)SymbolInfoInteger(symbol, SYMBOL_SWAP_MODE);
double swap_long_cost = 0, swap_short_cost = 0;
double swap_long_raw = SymbolInfoDouble(symbol, SYMBOL_SWAP_LONG);
@@ -124,7 +125,7 @@ void OnStart()
case SYMBOL_SWAP_MODE_CURRENCY_MARGIN:
case SYMBOL_SWAP_MODE_CURRENCY_DEPOSIT:
{ swap_long_cost = InpLotSize * swap_long_raw; swap_short_cost = InpLotSize * swap_short_raw; break; }
case SYMBOL_SWAP_MODE_INTEREST_CURRENT: // Corrected from SYMBOL_CALC_MODE...
case SYMBOL_SWAP_MODE_INTEREST_CURRENT:
{
double price = SymbolInfoDouble(symbol, SYMBOL_BID);
swap_long_cost = (InpLotSize * contract_size * price * (swap_long_raw / 100.0)) / 360.0;
@@ -135,7 +136,7 @@ void OnStart()
{ swap_long_cost = swap_long_raw; swap_short_cost = swap_short_raw; break; }
}
//--- 4. Display the Results in the Experts Tab ---
//--- 5. Display the Results in the Experts Tab ---
string base_currency = SymbolInfoString(symbol, SYMBOL_CURRENCY_BASE);
string profit_currency = SymbolInfoString(symbol, SYMBOL_CURRENCY_PROFIT);
ENUM_DAY_OF_WEEK triple_swap_day = (ENUM_DAY_OF_WEEK)SymbolInfoInteger(symbol, SYMBOL_SWAP_ROLLOVER3DAYS);
@@ -144,7 +145,7 @@ void OnStart()
Print("--- Margin & Swap Calculation ---");
PrintFormat("Symbol: %s (%s)", symbol, description);
PrintFormat("Position Size: %.2f lots", InpLotSize);
PrintFormat("Simulated Leverage: 1:%d", (int)InpLeverage);
PrintFormat("Simulated Margin Rate: %.2f%% (Equivalent to ~1:%.0f leverage)", InpMarginRatePercent, 100.0/InpMarginRatePercent);
PrintFormat("Calculation Mode: %s", EnumToString(calc_mode));
Print("\n--- Required Margin ---");