104 lines
3.8 KiB
MQL5
104 lines
3.8 KiB
MQL5
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//+------------------------------------------------------------------+
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//| ObjectStyle.mq5 |
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//| Copyright 2021, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//| |
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//| The script creates and periodically updates rectangular objects: |
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//| modifications affect color, style, width, filling and back props.|
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//+------------------------------------------------------------------+
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#include "..\..\Include\ObjectMonitor.mqh"
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#include "..\..\Include\AutoPtr.mqh"
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#define OBJECT_NUMBER 5
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//+------------------------------------------------------------------+
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//| Helper class for object creation and setup |
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//+------------------------------------------------------------------+
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class ObjectBuilder: public ObjectSelector
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{
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protected:
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const ENUM_OBJECT type;
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const int window;
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public:
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ObjectBuilder(const string _id, const ENUM_OBJECT _type,
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const long _chart = 0, const int _win = 0):
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ObjectSelector(_id, _chart), type(_type), window(_win)
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{
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ObjectCreate(host, id, type, window, 0, 0);
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}
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~ObjectBuilder()
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{
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ObjectDelete(host, id);
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}
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bool isExisting() const
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{
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return ObjectFind(host, id) == window;
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}
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// changing name and chart is prohibited in the builder
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virtual void name(const string _id) override = delete;
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virtual void chart(const long _chart) override = delete;
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};
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//+------------------------------------------------------------------+
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//| Script program start function |
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//+------------------------------------------------------------------+
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void OnStart()
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{
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const string name = "ObjStyle-";
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const int bars = (int)ChartGetInteger(0, CHART_VISIBLE_BARS);
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const int first = (int)ChartGetInteger(0, CHART_FIRST_VISIBLE_BAR);
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const int rectsize = bars / OBJECT_NUMBER;
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AutoPtr<ObjectBuilder> objects[OBJECT_NUMBER];
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color colors[OBJECT_NUMBER] = {clrRed, clrGreen, clrBlue, clrMagenta, clrOrange};
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// create and setup rectangle objects
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for(int i = 0; i < OBJECT_NUMBER; ++i)
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{
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const int h = iHighest(NULL, 0, MODE_HIGH, rectsize, i * rectsize);
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const int l = iLowest(NULL, 0, MODE_LOW, rectsize, i * rectsize);
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ObjectBuilder *object = new ObjectBuilder(name + (string)(i + 1), OBJ_RECTANGLE);
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object.set(OBJPROP_TIME, iTime(NULL, 0, i * rectsize), 0);
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object.set(OBJPROP_TIME, iTime(NULL, 0, (i + 1) * rectsize), 1);
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object.set(OBJPROP_PRICE, iHigh(NULL, 0, h), 0);
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object.set(OBJPROP_PRICE, iLow(NULL, 0, l), 1);
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object.set(OBJPROP_COLOR, colors[i]);
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object.set(OBJPROP_WIDTH, i + 1);
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object.set(OBJPROP_STYLE, (ENUM_LINE_STYLE)i);
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objects[i] = object;
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}
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const int key = TerminalInfoInteger(TERMINAL_KEYSTATE_SCRLOCK);
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int pass = 0;
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int offset = 0;
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for( ;!IsStopped(); ++pass)
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{
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Sleep(200);
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if(TerminalInfoInteger(TERMINAL_KEYSTATE_SCRLOCK) != key)
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{
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continue;
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}
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// once in a while change color/style/width/fill/back props
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if(pass % 5 == 0)
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{
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++offset;
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for(int i = 0; i < OBJECT_NUMBER; ++i)
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{
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objects[i][].set(OBJPROP_COLOR, colors[(i + offset) % OBJECT_NUMBER]);
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objects[i][].set(OBJPROP_WIDTH, (i + offset) % OBJECT_NUMBER + 1);
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objects[i][].set(OBJPROP_FILL, rand() > 32768 / 2);
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objects[i][].set(OBJPROP_BACK, rand() > 32768 / 2);
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}
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}
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ChartRedraw();
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}
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}
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//+------------------------------------------------------------------+
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