Initial commit: MQL5 Indicators Collection (MetaTrader 5) - Part 4

Strategy Checklist - indicator for MetaTrader 5/README.md

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+# 🚀 Unlock the Power of Trading!
+
+Welcome to this open-source trading project. Here you will find powerful tools to enhance your trading journey. If you find this project useful, please consider starring ⭐, sharing, or donating to support further development!
+
+---
+
+**Support the project:**
+- Star this repository on GitHub
+- Share it with your trading friends
+- [Donate here](https://www.paypal.com/donate/?hosted_button_id=YOUR_BUTTON_ID) to help us grow!
+
+---
+
+## Files included:
+### Source Files:
+- `fxtt_strategychecklist.mq5`
+
+### Screenshots:
+![Screenshot](FxTT_Strategy_Checklist__1.png)
+
+> Made with ❤️ for the trading community.

Strategy Checklist - indicator for MetaTrader 5/fxtt_strategychecklist.mq5

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+//+------------------------------------------------------------------+
+//|                                      FXTT_StrategyChecklist.mq5  |
+//|                                  Copyright 2016, Carlos Oliveira |
+//|                                 https://www.forextradingtools.eu |
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2016, Carlos Oliveira"
+#property link      "https://www.forextradingtools.eu/"
+#property version   "2.0"
+#property strict
+#property indicator_chart_window
+
+#property script_show_inputs
+#property indicator_plots               0
+#property indicator_buffers             0
+#property indicator_minimum             0.0
+#property indicator_maximum             0.0
+
+#include <Controls\Dialog.mqh>
+#include <Controls\CheckGroup.mqh>
+
+#define NUM_CHECKS (20)
+
+input string TAG = "FxTT_SC20_";
+input ENUM_BASE_CORNER Location = CORNER_RIGHT_LOWER; //Window Location
+input string Check01 = ">------- Example 1 -------<";
+input string Check02 = "Example 2";
+input string Check03 = "Example 3";
+input string Check04 = "";
+input string Check05 = "";
+input string Check06 = "";
+input string Check07 = "";
+input string Check08 = "";
+input string Check09 = "";
+input string Check10 = "";
+input string Check11 = "";
+input string Check12 = "";
+input string Check13 = "";
+input string Check14 = "";
+input string Check15 = "";
+input string Check16 = "";
+input string Check17 = "";
+input string Check18 = "";
+input string Check19 = "";
+input string Check20 = "";
+
+// Struct for dimensions and positions
+struct Dimension
+  {
+   int               width, height;
+  };
+struct Position
+  {
+   int               x, y;
+  };
+
+string  DataFileName="data.bin";             // File name
+string  DataDirectoryName="SChecklist";      // Folder name
+
+//+------------------------------------------------------------------+
+//| Class CPanelDialog                                               |
+//+------------------------------------------------------------------+
+class CPanelDialog : public CAppDialog
+  {
+private:
+   CCheckGroup       m_check_group;
+   bool              m_checks_array[NUM_CHECKS];
+public:
+                     CPanelDialog(void);
+                    ~CPanelDialog(void);
+   //--- Create
+   virtual bool      Create(const long chart, const string name, const int subwin, const int x1, const int y1, const int x2, const int y2);
+   //--- chart event handler
+   virtual bool      OnEvent(const int id,const long &lparam,const double &dparam,const string &sparam);
+
+   //--- handlers of the dependent controls events
+   void              OnChangeCheckGroup(void);
+
+   //--- Create dependent controls
+   bool              InitializeCheckGroupControls(void);
+   bool              InitCheckGroupItems(void);
+
+   void              SaveChecklistState(void);
+   void              LoadChecklistState(void);
+  };
+//+------------------------------------------------------------------+
+//| Event Handling                                                   |
+//+------------------------------------------------------------------+
+EVENT_MAP_BEGIN(CPanelDialog)
+ON_EVENT(ON_CHANGE,m_check_group,OnChangeCheckGroup)
+EVENT_MAP_END(CAppDialog)
+//+------------------------------------------------------------------+
+CPanelDialog::CPanelDialog(void)
+  {
+  }
+//+------------------------------------------------------------------+
+CPanelDialog::~CPanelDialog(void)
+  {
+   SaveChecklistState();
+  }
+//+------------------------------------------------------------------+
+bool CPanelDialog::Create(const long chart, const string name, const int subwin, const int x1, const int y1, const int x2, const int y2)
+  {
+   if(!CAppDialog::Create(chart, name, subwin, x1, y1, x2, y2))
+      return(false);
+
+   if(!InitializeCheckGroupControls())
+      return(false);
+
+   LoadChecklistState();
+
+   return(true);
+  }
+//+------------------------------------------------------------------+
+void CPanelDialog::OnChangeCheckGroup(void)
+  {
+   for(int i = 0; i < NUM_CHECKS; ++i)
+     {
+      m_checks_array[i] = m_check_group.Check(i);
+     }
+  }
+//+------------------------------------------------------------------+
+bool CPanelDialog::InitializeCheckGroupControls(void)
+  {
+   // Define the positions and dimensions of the check group control
+   const int x1 = 10, y1 = 10;
+   const int x2 = 320, y2 = CalculateWindowHeight(CountNonEmptyChecklistItems());
+
+   // Create the check group control
+   if(!m_check_group.Create(m_chart_id, TAG + m_name + "CheckGroup", m_subwin, x1, y1, x2, y2))
+      return(false);
+
+   // Attach the check group control to the dialog
+   if(!Add(m_check_group))
+      return(false);
+
+   // Initialize the check group items
+   if(!InitCheckGroupItems())
+      return(false);
+
+   return(true);
+  }
+//+------------------------------------------------------------------+
+bool CPanelDialog::InitCheckGroupItems(void)
+  {
+   string checks[NUM_CHECKS];
+   GetChecklistStrings(checks);
+   for(int i = 0; i < NUM_CHECKS; ++i)
+     {
+      if(StringLen(checks[i]) > 0)
+        {
+         int id = 1 << i;
+         if(!m_check_group.AddItem(checks[i], id))
+            return(false);
+        }
+     }
+   return(true);
+  }
+//+------------------------------------------------------------------+
+void CPanelDialog::SaveChecklistState()
+  {
+   string path = DataDirectoryName + "//" + Symbol() + DataFileName;
+   ResetLastError();
+
+   int handle = FileOpen(path, FILE_READ | FILE_WRITE | FILE_BIN);
+   if(handle == INVALID_HANDLE)
+      Print("Failed to open the file, error: " + (string) GetLastError());
+   else
+     {
+      if(!FileWriteArray(handle, m_checks_array))
+         Print("Failed to write to the file, error: " + (string)GetLastError());
+      FileClose(handle);
+     }
+  }
+//+------------------------------------------------------------------+
+void CPanelDialog::LoadChecklistState()
+  {
+   string path = DataDirectoryName + "//" + Symbol() + DataFileName;
+
+   ResetLastError();
+
+   int file_handle = FileOpen(path, FILE_READ | FILE_BIN);
+   if(file_handle == INVALID_HANDLE)
+      Print("File open failed, error: " + (string) GetLastError());
+   else
+     {
+      if(!FileReadArray(file_handle, m_checks_array))
+         Print("Failed to read from the file, error: " + (string) GetLastError());
+      FileClose(file_handle);
+
+      for(int i=0; i<NUM_CHECKS; i++)
+        {
+         m_check_group.Check(i, m_checks_array[i]);
+        }
+     }
+  }
+//+------------------------------------------------------------------+
+
+// Global variable
+CPanelDialog ExtDialog;
+
+//+------------------------------------------------------------------+
+int OnInit()
+  {
+   Dimension dialogDim = InitDialogDimensions();
+   Dimension chartDim = GetChartDimensions();
+
+   if(!CreateAndRunDialog(dialogDim, chartDim))
+      return INIT_FAILED;
+
+   return INIT_SUCCEEDED;
+  }
+//+------------------------------------------------------------------+
+void OnDeinit(const int reason)
+  {
+   ObjectsDeleteAll(ChartID(),TAG);
+   ExtDialog.Destroy(reason);
+  }
+//+------------------------------------------------------------------+
+int OnCalculate(const int rates_total,
+                const int prev_calculated,
+                const int begin,
+                const double &price[])
+  {
+//--- return value of prev_calculated for next call
+   return(rates_total);
+  }
+//+------------------------------------------------------------------+
+void OnChartEvent(const int id,
+                  const long &lparam,
+                  const double &dparam,
+                  const string &sparam)
+  {
+   ExtDialog.ChartEvent(id,lparam,dparam,sparam);
+  }
+//+------------------------------------------------------------------+
+Dimension InitDialogDimensions()
+  {
+   Dimension dim = {340, CalculateWindowHeight(CountNonEmptyChecklistItems()) + 40};
+   return dim;
+  }
+//+------------------------------------------------------------------+
+Dimension GetChartDimensions()
+  {
+   Dimension dim =
+     {
+      (int)ChartGetInteger(0, CHART_WIDTH_IN_PIXELS, 0),
+      (int)ChartGetInteger(0, CHART_HEIGHT_IN_PIXELS, 0)
+     };
+   return dim;
+  }
+//+------------------------------------------------------------------+
+bool CreateAndRunDialog(const Dimension& dialogDim, const Dimension& chartDim)
+  {
+   Position dialogPos = CalculateDialogPosition(dialogDim, chartDim);
+   Position dialogEndPos = {dialogPos.x + dialogDim.width, dialogPos.y + dialogDim.height};
+
+   return ExtDialog.Create(0, TAG + "-Strategy Checklist", 0, dialogPos.x, dialogPos.y, dialogEndPos.x, dialogEndPos.y) && ExtDialog.Run();
+  }
+//+------------------------------------------------------------------+
+int CountNonEmptyChecklistItems()
+  {
+   string checks[NUM_CHECKS];
+   GetChecklistStrings(checks);
+
+   int count = 0;
+   for(int i = 0; i < NUM_CHECKS; ++i)
+     {
+      if(StringLen(checks[i]) > 0)
+         count++;
+     }
+   return count;
+  }
+//+------------------------------------------------------------------+
+void GetChecklistStrings(string &arr[])
+  {
+   string checks[NUM_CHECKS] = {Check01, Check02, Check03, Check04, Check05,
+                                Check06, Check07, Check08, Check09, Check10,
+                                Check11, Check12, Check13, Check14, Check15,
+                                Check16, Check17, Check18, Check19, Check20
+                               };
+   for(int i = 0; i < NUM_CHECKS; ++i)
+     {
+      arr[i] = checks[i];
+     }
+  }
+//+------------------------------------------------------------------+
+int CalculateWindowHeight(int numberOfCheckboxes)
+  {
+   const int checkboxHeight = 19;
+   const int padding = 3;
+   const int topAndBottomMargin = 10;
+
+   int windowHeight = (numberOfCheckboxes * checkboxHeight) + topAndBottomMargin;
+   return windowHeight;
+  }
+//+------------------------------------------------------------------+
+Position CalculateDialogPosition(const Dimension& dialogDim, const Dimension& chartDim)
+  {
+   const int margin = 20;
+   Position dialogPos = {margin, margin}; // Default values are for CORNER_LEFT_UPPER
+   switch(Location)
+     {
+      case CORNER_RIGHT_UPPER:
+         dialogPos.x = chartDim.width - dialogDim.width - margin;
+         break;
+      case CORNER_LEFT_LOWER:
+         dialogPos.y = chartDim.height - dialogDim.height - margin;
+         break;
+      case CORNER_RIGHT_LOWER:
+         dialogPos.x = chartDim.width - dialogDim.width - margin;
+         dialogPos.y = chartDim.height - dialogDim.height - margin;
+         break;
+     }
+   return dialogPos;
+  }
+//+------------------------------------------------------------------+