Canvas_Background

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

//|                                            Canvas_Background.mq5 |

//|                                       Copyright 2021, Dark Ryd3r |

//|                                    https://twitter.com/DarkRyd3r |

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

#property copyright "Copyright 2021, Dark Ryd3r"

#property link      "https://twitter.com/DarkRyd3r"

#property version   "1.00"

#include  <Canvas\Canvas_shader.mqh>

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

//| Script program start function                                    |

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

void OnStart() {

//---

   ChartSetInteger ( 0, CHART_FOREGROUND, true );

   CCanvas C;

   int  Width=( ushort ) ChartGetInteger ( 0, CHART_WIDTH_IN_PIXELS );    // we get the width of the window

   int  Height=( ushort ) ChartGetInteger ( 0, CHART_HEIGHT_IN_PIXELS );   // get the Height of the window

   if (!C.CreateBitmapLabel( 0, 0, "CanvasExamlple", 0, 0,Width,Height, COLOR_FORMAT_XRGB_NOALPHA ))       // Acreate a canvas with the size of the current window

      Print ( "Error creating canvas: ", GetLastError ());

   uint  i= 0,j= 100000 ;

   int  size=Width*Height;

   uchar  h[ 25600 ];

   for  ( int  w= 0 ; w< 25600 ; w++)

      h[w]=  uchar ( 128 + 128 * sin ( double (w)/ 256 )); //create an array to speed up work

   double  X1= 0,Y1= 0,X2= 0,Y2= 0 ;

   while (! IsStopped ()) {

      int  pos= int (i%size);

      if (pos== 0 ) {

         C.Update();

         //Sleep(100);

         X1= Width-( sin (( double )j/ 100 )*( double )Width);

         Y1= Height-( cos (( double )j/ 140 )*( double )Height);

         X2= Width+( cos (( double )j/ 80 )*( double )Width);

         Y2= Height+( sin (( double )j/ 20 )*( double )Height);

         j++;

      }

      int  X=pos+Width;

      int  Y= int (pos%Width);

      double  d= ((X1-X)*(X1-X)+(Y1-Y)*(Y1-Y))/(((X1-X)*(X1-X)+(Y1-Y)*(Y1-Y))+((X2-X)*(X2-X)+(Y2-Y)*(Y2-Y)));

      C.m_pixels[pos]=XRGB(h[ int (d* 11520 )],h[ int (d* 17920 )],h[ int (d* 6400 )]);

      i++;

   }

   C.Destroy();



}

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