//+------------------------------------------------------------------+ //| BarCountTest.mq4 | //| Copyright © 2011, One day! | //| | //+------------------------------------------------------------------+ #property copyright "Copyright © 2011, One day!" #property link "" #property indicator_chart_window // EXPLANATORY COMMENTS //======================================================= extern color clrLineColour = Gray; // Default line colour. extern int intFontSize = 11; // Default font size. extern int intLineWeight = 1; // Default line width. string strOriginBar = "BarCount"; // Constant value for the name of the origin bar. Do not change this! string strName = "BCL:"; // Constant value for first part of the name of all vertical line objects, except the origin datetime dteOldTime; // Represents the last time value datetime dteNewTime; // Used to find the current time value of the origin bar int intTimeFrame; // Store the value for the current chart timeframe int i,j,k; // Used as loop controls int A_intTest[32] = {11,22,33,45,56,67,79,90,101,112,123,135, 146,157,168,180,191,202,213,225,236,247, 258,270,281,292,303,315,326,337,348,360}; // Array of integers to use in testing int init(){ if(ObjectFind(strOriginBar) == -1){ // If the bar is not on the chart, objectfind will return -1 //Alert("Origin bar cannot be located!"); Alert("Origin bar cannot be located! Creating Now"); ObjectCreate (strOriginBar,OBJ_VLINE,0,Time[3],0);// If the returned value was -1 then the alert user } if(ObjectFind(strOriginBar) != -1){ //Alert("Origin bar has been located!"); // If the returned value wasn't -1 then the alert user intTimeFrame = Period(); // Initialise the period function and store the result dteOldTime = ObjectGet(strOriginBar,OBJPROP_TIME1); // Find the time value of the bar; UDF_DeleteCounts(); UDF_DrawCounts(dteOldTime,intTimeFrame); // Call the user defined function to draw the vertical lines } // End of if statement return(0); } int deinit(){ UDF_DeleteCounts(); // Delete all of the lines created by the indicator return(0); } int start(){ if(ObjectFind(strOriginBar) != -1){ // If the bar is not on the chart, objectfind will return -1 dteNewTime = ObjectGet(strOriginBar,OBJPROP_TIME1); // If the returned value wasn't -1 then the bar exists and the time value is stored if(dteOldTime != dteNewTime){ // If different then... dteOldTime = dteNewTime; // Store the new value then... UDF_DeleteCounts(); // Delete the current lines then... UDF_DrawCounts(dteOldTime,intTimeFrame); // Draw them in the new locations } } return(0); } //================================================================================================================================================ // User defined functions //================================================================================================================================================ /* UDF to draw the vertical bars Arguements: intOriginTime = the datetime value of the opening of the origin bar intTF = the integer value of the current timeframe */ //================================================================================================================================================ void UDF_DrawCounts(int intOriginTime, int intTF){ int intIndex; // Store the index number of the bar int intCurrArrayValue; // Used for storing the array value during the for loop int intBarCount; // Used to count up from zero and compare with array values int intElementCount; // Used for counting through the array elements datetime dteNextTime; // Store the time value of a bar in the loop string strCaption; // Label description for each bar intBarCount = 0; // Starts at zero. The index of the first element in the array is also 0 intElementCount = 0; // Starts at zero - the first element in the array intIndex = iBarShift(Symbol(),0,intOriginTime,true); // The bars index position can then be determined and stored for(i = intIndex; i >= 0; i--){ // Start of main loop to decrement from the origin location intCurrArrayValue = A_intTest[intElementCount]; // Store array value if(intBarCount == intCurrArrayValue){ // Check if the bar count matches the current array value dteNextTime = iTime(Symbol(),intTF,i); // Find the time value for the current bar in the sequence strCaption = StringConcatenate("Count: ",intBarCount); // Form the caption to appear as the description label ObjectCreate (strName + i,OBJ_VLINE,0,dteNextTime,0); // Create a line... ObjectSetText (strName + i,strCaption,intFontSize,"Tahoma",clrLineColour); // Add a caption to it... ObjectSet (strName + i,OBJPROP_COLOR,clrLineColour); // Set the colour of the line... ObjectSet (strName + i,OBJPROP_WIDTH,intLineWeight); // Set the thickness of the line intElementCount ++; // Add 1 to the element count to read the next value } intBarCount ++; // Add one to the bar count } // End of for loop WindowRedraw(); } //================================================================================================================================================ // UDF to delete the vertical bars //================================================================================================================================================ void UDF_DeleteCounts(){ int j; // Loop counter int intObjTotal = ObjectsTotal(OBJ_VLINE) + 1; // Find all vertical line objects string strObjRef; // Store object name for(j = intObjTotal; j >=0; j--){ // Start for loop strObjRef = ObjectName(j); // Define object if(StringSubstr(strObjRef,0,4) == "BCL:"){ // If it contains: "BDC:" characters then... ObjectDelete(strObjRef); // Delete it } // end if } // end for WindowRedraw(); }