Matt Corcoran
81 lines
3.4 KiB
Plaintext
81 lines
3.4 KiB
Plaintext
//+------------------------------------------------------------------+
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//| TrendlineAnalyser.mqh |
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//| Detects price crossovers and trend direction for a ma buffer |
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//| |
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//| 2025 xMattC (github.com/xMattC) |
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//+------------------------------------------------------------------+
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#property copyright "2025 xMattC (github.com/xMattC)"
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#property link "https://github.com/xMattC"
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#property version "1.00"
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#include <MyLibs/Utils/MarketDataUtils.mqh>
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class TrendlineAnalyser {
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private:
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MarketDataUtils market_data_utils;
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public:
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void detect_cross(string symbol, int handle, bool& cross_long, bool& cross_short, int shift = 1);
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void trend_direction(string symbol, int handle, bool& direction_long, bool& direction_short, int shift = 1);
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};
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// ---------------------------------------------------------------------
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// Detects whether price has crossed above (long) or below (short)
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// a trendline between the two most recent closed bars.
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//
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// Parameters:
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// - symbol : Trading symbol (e.g., "EURUSD").
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// - handle : Indicator handle for the trendline buffer.
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// - cross_long : Output true if bullish crossover detected.
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// - cross_short : Output true if bearish crossover detected.
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// - shift : Bar shift to evaluate (default: 1 = last closed bar).
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//
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// Logic:
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// - Retrieves price and trendline values for the current and previous bar.
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// - Checks for a crossover by comparing price vs trendline movement.
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// ---------------------------------------------------------------------
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void TrendlineAnalyser::detect_cross(string symbol, int handle, bool& cross_long, bool& cross_short, int shift) {
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cross_long = false;
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cross_short = false;
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double price = iClose(symbol, PERIOD_CURRENT, shift);
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double prev_price = iClose(symbol, PERIOD_CURRENT, shift + 1);
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double trendline = market_data_utils.get_buffer_value(handle, shift);
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double prev_trendline = market_data_utils.get_buffer_value(handle, shift + 1);
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if (price == EMPTY_VALUE || prev_price == EMPTY_VALUE || trendline == EMPTY_VALUE || prev_trendline == EMPTY_VALUE)
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return;
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cross_long = (prev_price < prev_trendline && price > trendline);
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cross_short = (prev_price > prev_trendline && price < trendline);
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}
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// ---------------------------------------------------------------------
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// Checks if price is currently above or below the trendline.
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//
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// Parameters:
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// - symbol : Trading symbol (e.g., "EURUSD").
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// - handle : Trendline indicator handle.
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// - direction_long : Output true if price is above trendline.
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// - direction_short : Output true if price is below trendline.
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// - shift : Bar index to check (default: 1).
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//
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// Logic:
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// - Retrieves price and trendline at the specified shift.
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// - Compares relative position of price to trendline.
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// ---------------------------------------------------------------------
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void TrendlineAnalyser::trend_direction(string symbol, int handle, bool& direction_long, bool& direction_short, int shift) {
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direction_long = false;
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direction_short = false;
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double price = iClose(symbol, PERIOD_CURRENT, shift);
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double trendline = market_data_utils.get_buffer_value(handle, shift);
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if (price == EMPTY_VALUE || trendline == EMPTY_VALUE)
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return;
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direction_long = (price > trendline);
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direction_short = (price < trendline);
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}
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