AutoBringChartToTop

ÿþ//+------------------------------------------------------------------+

//|                                           AutoBringChartToTop.mq4|

//|                        Copyright 2013, MetaQuotes Software Corp. |

//|                                              http://www.mql5.com |

//+------------------------------------------------------------------+

//2017-05-25 12:42:27 publish to MQL5.COM codebase

//2016-02-18 14:51:31 add input ENUM_BASE_CORNER Corner=3;

/*

Note:

https://www.mql5.com/en/docs/constants/objectconstants/enum_anchorpoint

The OBJ_BUTTON, OBJ_RECTANGLE_LABEL and OBJ_EDIT objects 

have a fixed anchor point in the upper left corner (ANCHOR_LEFT_UPPER).

*/



//2014-5-1 22:07 coded



#property copyright "Copyright 2014,fxMeter."

#property link      "https://www.mql5.com/en/users/fxmeter"

#property version   "1.00"

#property strict

#property indicator_chart_window

#include <ChartObjects\ChartObjectsTxtControls.mqh>

//--- input parameters

input ENUM_BASE_CORNER Corner=3;

input int  ShiftX=5;

input int  ShiftY=15;

input int  IntervalSeconds=3;



CChartObjectButton ExtBtn; //object to create button

string btnName="fmtbtnAlt_show";//button name

long chartToTop=-1,nextChart=-1;//chartID to bringh it top, next ChartID to bring to top

//+------------------------------------------------------------------+

//| Custom indicator initialization function                         |

//+------------------------------------------------------------------+

int OnInit()

  {

//--- 



//--- create button   

   int width=100,height=30;// width and height of button

   if(!ButtonCreate(ExtBtn,btnName,ShiftX,ShiftY,width,height,Corner))

     {

      Alert("Create buttons failed!");

      return(INIT_FAILED);

     }

   ExtBtn.SetString(OBJPROP_TEXT,"OFF");// init button text to OFF



//---set timer

   if(!EventSetTimer(IntervalSeconds))

      return(INIT_FAILED);

//---

   return(INIT_SUCCEEDED);

  }

//+------------------------------------------------------------------+

//|                                                                  |

//+------------------------------------------------------------------+

void OnDeinit(const int reason)

  {

   EventKillTimer();

   ObjectDelete(0,btnName);

  }

//+------------------------------------------------------------------+

//| Custom indicator iteration function                              |

//+------------------------------------------------------------------+

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[])

  {

//---     



//--- return value of prev_calculated for next call

   return(rates_total);

  }

//+------------------------------------------------------------------+

//| Timer function                                                   |

//+------------------------------------------------------------------+

void OnTimer()

  {

//---  

   if(chartToTop>0)// or if(ExtBtn.GetString(OBJPROP_TEXT)=="ON") 

     {

      ChartSetInteger(chartToTop,CHART_BRING_TO_TOP,true);



      nextChart=ChartNext(chartToTop);// if nextChart==-1,chartToTop=ChartFirst();

      chartToTop=nextChart;

      if(chartToTop==-1)chartToTop=ChartFirst();



     }



  }

//+------------------------------------------------------------------+

//| ChartEvent function                                              |

//+------------------------------------------------------------------+

void OnChartEvent(const int id,

                  const long &lparam,

                  const double &dparam,

                  const string &sparam)

  {



//--- click button to switch ON/OFF

   if(id==CHARTEVENT_OBJECT_CLICK)

     {

      if(sparam==btnName)//button is clicked

        {

         if(chartToTop==-1)// or if(ExtBtn.GetString(OBJPROP_TEXT)=="OFF")

           {

            ExtBtn.SetString(OBJPROP_TEXT,"ON");//set the current state to ON

            ExtBtn.BackColor(clrYellowGreen);

            ExtBtn.BorderColor(clrYellowGreen);

            chartToTop=ChartFirst();//work from the first chart.

           }

         else //switch to OFF

           {

            ExtBtn.SetString(OBJPROP_TEXT,"OFF");//set the current state to OFF

            ExtBtn.BackColor(clrTomato);

            ExtBtn.BorderColor(clrTomato);

            chartToTop=-1; // stop 

           }

        }

     }



  }

//+------------------------------------------------------------------+

bool ButtonCreate(CChartObjectButton &btn,const string name,

                  const int x,const int y,int width,int height,ENUM_BASE_CORNER corner=CORNER_RIGHT_LOWER)

  {



//---button coordinate, relative to the corner of chart 

   int pointX=0,pointY=0;//Exactly,it is the coordinate of the button's LEFT_UPPER 



//---Note:when create buttons,the anchor point is always the button's LEFT_UPPER   

//---It means we should use the coordinate of the LEFT_UPPER point to create button.

//---So,calculte the coordinate of the LEFT_UPPER point (anchor point)



/* this code is ok in MQL4,but it is not correct in MQL5.

   if(corner==0){ pointX=x; pointY=y;} //corner=0,button is at the left upper of chart

   if(corner==1){ pointX= x+width; pointY = y;} //1

   if(corner==2){ pointX = x; pointY = height+y;}//2

   if(corner==3){ pointX=x+width; pointY=y+height;}//3   

*/



   if(corner==CORNER_LEFT_UPPER){ pointX=x; pointY=y;} //corner=0,button is at the left upper of chart

   if(corner==CORNER_RIGHT_UPPER){ pointX= x+width; pointY = y;} //1

   if(corner==CORNER_LEFT_LOWER){ pointX = x; pointY = height+y;}//2

   if(corner==CORNER_RIGHT_LOWER){ pointX=x+width; pointY=y+height;}//3   



//---Create button

   if(!btn.Create(0,name,0,pointX,pointY,width,height)) return(false);

   if(!btn.Corner(corner)) return(false);

   if(!btn.FontSize(10)) return(false);

   if(!btn.Color(clrWhite)) return(false);//OBJPROP_COLOR: the color of text on button

   if(!btn.BackColor(clrTomato)) return(false);//OBJPROP_BGCOLOR

   if(!btn.BorderColor(clrTomato)) return(false);//OBJPROP_BORDER_COLOR,same as backcolor to make button flat.

   if(!btn.SetInteger(OBJPROP_HIDDEN,true))return(false);

   if(!btn.SetInteger(OBJPROP_SELECTABLE,false))return(false);

//--- successful execution

   return(true);

  }

//+------------------------------------------------------------------+