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MQL – Những Class hay nhất

Author: admin - Posted: 07/04/21 - Update: 11/11/22

Class MT4Panel

//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Software Corp."
#property link      "https://www.mql5.com"
#property strict

//+------------------------------------------------------------------+
bool CreateButton(string name) {
    ResetLastError();
    if(!ObjectCreate(0, name, OBJ_BUTTON, 0, 0, 0)) {
        Print(__FUNCTION__, "! Error code = ", GetLastError());
        return(false);
    }
    ObjectSetInteger(0, name, OBJPROP_XDISTANCE, 100);
    ObjectSetInteger(0, name, OBJPROP_YDISTANCE, 100);
    ObjectSetInteger(0, name, OBJPROP_XSIZE, 50);
    ObjectSetInteger(0, name, OBJPROP_YSIZE, 20);
    ObjectSetInteger(0, name, OBJPROP_CORNER, CORNER_LEFT_UPPER);
    ObjectSetString(0, name, OBJPROP_TEXT, "Button");
    ObjectSetString(0, name, OBJPROP_FONT, "Arial");
    ObjectSetInteger(0, name, OBJPROP_FONTSIZE, 10);
    ObjectSetInteger(0, name, OBJPROP_COLOR, clrBlack);
    ObjectSetInteger(0, name, OBJPROP_BGCOLOR, C'236,233,216');
    ObjectSetInteger(0, name, OBJPROP_BORDER_COLOR, clrNONE);
    ObjectSetInteger(0, name, OBJPROP_BACK, false);
    ObjectSetInteger(0, name, OBJPROP_STATE, false);
    ObjectSetInteger(0, name, OBJPROP_SELECTABLE, false);
    ObjectSetInteger(0, name, OBJPROP_SELECTED, false);
    ObjectSetInteger(0, name, OBJPROP_HIDDEN, true);
    ObjectSetInteger(0, name, OBJPROP_ZORDER, 0);
    return(true);
}

//+------------------------------------------------------------------+
bool CreateEdit(string name) {
    ResetLastError();
    if(!ObjectCreate(0, name, OBJ_EDIT, 0, 0, 0)) {
        Print(__FUNCTION__, "! Error code = ", GetLastError());
        return(false);
    }
    ObjectSetInteger(0, name, OBJPROP_XDISTANCE, 100);
    ObjectSetInteger(0, name, OBJPROP_YDISTANCE, 100);
    ObjectSetInteger(0, name, OBJPROP_XSIZE, 100);
    ObjectSetInteger(0, name, OBJPROP_YSIZE, 20);
    ObjectSetString(0, name, OBJPROP_TEXT, "");
    ObjectSetString(0, name, OBJPROP_FONT, "Arial");
    ObjectSetInteger(0, name, OBJPROP_FONTSIZE, 10);
    ObjectSetInteger(0, name, OBJPROP_ALIGN, ALIGN_CENTER);
    ObjectSetInteger(0, name, OBJPROP_READONLY, true);
    ObjectSetInteger(0, name, OBJPROP_CORNER, CORNER_LEFT_UPPER);
    ObjectSetInteger(0, name, OBJPROP_COLOR, clrBlack);
    ObjectSetInteger(0, name, OBJPROP_BGCOLOR, clrWhite);
    ObjectSetInteger(0, name, OBJPROP_BORDER_COLOR, clrDimGray);
    ObjectSetInteger(0, name, OBJPROP_BACK, false);
    ObjectSetInteger(0, name, OBJPROP_SELECTABLE, false);
    ObjectSetInteger(0, name, OBJPROP_SELECTED, false);
    ObjectSetInteger(0, name, OBJPROP_HIDDEN, true);
    ObjectSetInteger(0, name, OBJPROP_ZORDER, 0);
    return(true);
}

//+------------------------------------------------------------------+
void ObjectSetXY(string name, int x, int y) {
    ObjectSet(name, OBJPROP_XDISTANCE, x);
    ObjectSet(name, OBJPROP_YDISTANCE, y);
}

//+------------------------------------------------------------------+
void ObjectSetSize(string name, int width, int height) {
    ObjectSet(name, OBJPROP_XSIZE, width);
    ObjectSet(name, OBJPROP_YSIZE, height);
}

//+------------------------------------------------------------------+
class MT4Panel {
  public:
    string      itemsOld[];
    string      background, title, btnClose, btnMinus;
    struct      Item {
        string  name;
        int     x0;
        int     y0;
    };
    Item        items[];
    int         x, y, width, height, titHeight;
    bool        MouseDown,
                MouseOnTitle;
    double      x0Mouse,
                y0Mouse;

    MT4Panel() {
        this.x              = 200;
        this.y              = 100;
        this.width          = 400;
        this.height         = 100;
        this.titHeight      = 20;

        this.MouseDown      = false;
        this.MouseOnTitle   = false;
        this.x0Mouse     = 0;
        this.y0Mouse     = 0;

        static int MyObject_ID = 0;
        this.background = "MT4Panel-background" + MyObject_ID;
        this.title = "MT4Panel-title" + MyObject_ID;
        this.btnClose = "MT4Panel-btnClose" + MyObject_ID;
        this.btnMinus = "MT4Panel-btnMinus" + MyObject_ID;
        MyObject_ID++;
        this.createModal();

        ChartSetInteger(0, CHART_EVENT_MOUSE_MOVE, 1);
    }

    void createModal() {
        CreateEdit(this.background);
        ObjectSetInteger(0, this.background, OBJPROP_BGCOLOR, clrLavender);

        CreateEdit(this.title);
        ObjectSetInteger(0, this.title, OBJPROP_BGCOLOR, clrWhite);
        ObjectSetInteger(0, this.title, OBJPROP_FONTSIZE, 12);
        ObjectSetText(this.title, "Dashboard MT4-Panel");

        CreateButton(this.btnClose);
        ObjectSetInteger(0, this.btnClose, OBJPROP_BGCOLOR, clrWhite);
        ObjectSetInteger(0, this.btnClose, OBJPROP_FONTSIZE, 12);
        ObjectSetText(this.btnClose, "x");

        CreateButton(this.btnMinus);
        ObjectSetInteger(0, this.btnMinus, OBJPROP_BGCOLOR, clrWhite);
        ObjectSetInteger(0, this.btnMinus, OBJPROP_FONTSIZE, 12);
        ObjectSetText(this.btnMinus, "-");

        this.addItem(this.background, 0, 0);
        this.addItem(this.title, 0, 0);
        this.addItem(this.btnClose, this.width - this.titHeight, 0);
        this.addItem(this.btnMinus, this.width - this.titHeight * 2, 0);

        this.drawSize();
    }

    void drawSize() {
        ObjectSetSize(this.background, this.width, this.height);
        ObjectSetSize(this.title, this.width - this.titHeight * 2, this.titHeight);
        ObjectSetSize(this.btnClose, this.titHeight, this.titHeight);
        ObjectSetSize(this.btnMinus, this.titHeight, this.titHeight);
    }

    void drawPosition() {
        setItemPosition(this.btnClose, this.width - this.titHeight, 0);
        setItemPosition(this.btnMinus, this.width - this.titHeight * 2, 0);
    }

    void setSize(int width, int height) {
        this.width = width;
        this.height = height;
        drawSize();
        drawPosition();
    }

    void setTitleHeight(int titHeight) {
        this.titHeight = titHeight;
        drawSize();
        drawPosition();
    }

    void addItem(string name, int x0, int y0) {
        int s = ArraySize(this.items);
        ArrayResize(this.items, s + 1, 10);
        this.items[s].name = name;
        this.setItemPosition(s, x0, y0);
    }

    void setItemPosition(int i, int x0, int y0) {
        this.items[i].x0 = x0;
        this.items[i].y0 = y0;
        ObjectSetXY(this.items[i].name, this.x + x0, this.y + y0);
    }

    void setItemPosition(string name, int x0, int y0) {
        int s = ArraySize(this.items);
        int n = -1;
        for(int i = 0; i < s; i++) {
            if(this.items[i].name == name) {
                n = i;
                break;
            }
        }
        if(n > -1) setItemPosition(n, x0, y0);
    }

    void setPosition(int x, int y) {
        this.x = x;
        this.y = y;
        int s = ArraySize(this.items);
        for(int i = 0; i < s; i++) {
            string n = this.items[i].name;
            int xN = this.x + this.items[i].x0;
            int yN = this.y + this.items[i].y0;
            ObjectSetXY(n, xN, yN);
        }
    }

    void showOnTop() {
        bool state = ObjectGet(this.btnMinus, OBJPROP_STATE);
        int s = ArraySize(this.items);
        for(int i = 0; i < s; i++) {
            ObjectSetInteger(0, this.items[i].name, OBJPROP_TIMEFRAMES, EMPTY);
            if(!state) {
                ObjectSetInteger(0, this.items[i].name, OBJPROP_TIMEFRAMES, OBJ_ALL_PERIODS);
            } else if(state && 0 < i && i <= 3) {
                ObjectSetInteger(0, this.items[i].name, OBJPROP_TIMEFRAMES, OBJ_ALL_PERIODS);
            }
        }
    }

    void deletePanel() {
        int s = ArraySize(this.items);
        for(int i = 0; i < s; i++) {
            ObjectDelete(0, this.items[i].name);
        }
    }

    void onEventPanel(int id, long lparam, double dparam, string sparam) {
        if(id == CHARTEVENT_MOUSE_MOVE) {
            if(sparam == "1" && !this.MouseDown) {
                this.MouseDown = true;
                this.x0Mouse = lparam - this.x;
                this.y0Mouse = dparam - this.y;
                if(this.x0Mouse > 0 && this.x0Mouse < this.width && this.y0Mouse > 0 && this.y0Mouse < this.titHeight) {
                    this.MouseOnTitle = true;
                    this.showOnTop();
                }
            }
            //action when hold down mouse and move
            if(sparam == "1" && this.MouseDown) {
                if(this.MouseOnTitle) {
                    int xNew = lparam - this.x0Mouse;
                    int yNew = dparam - this.y0Mouse;

                    int xMin = 100 - this.width;
                    int yMin = 0;
                    int xMax = ChartGetInteger(0, CHART_WIDTH_IN_PIXELS, 0) - 100;
                    int yMax = ChartGetInteger(0, CHART_HEIGHT_IN_PIXELS, 0) - this.titHeight;

                    if(xNew < xMin) xNew = xMin;
                    if(yNew < yMin) yNew = yMin;
                    if(xNew > xMax) xNew = xMax;
                    if(yNew > yMax) yNew = yMax;

                    this.setPosition(xNew, yNew);
                    ChartSetInteger(ChartID(), CHART_MOUSE_SCROLL, 0);
                }
            }
            //action when up mouse
            if(sparam == "0" && this.MouseDown) {
                this.MouseDown = false;
                this.MouseOnTitle = false;
                ChartSetInteger(ChartID(), CHART_MOUSE_SCROLL, 1);
            }
        }
        if(id == CHARTEVENT_OBJECT_CLICK) {
            if(sparam == this.btnMinus) {
                this.showOnTop();
            } else if(sparam == this.btnClose) {
                this.deletePanel();
            }
        }
    }
};
//+------------------------------------------------------------------+

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

#property link "https://www.mql5.com"

#property strict

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

bool CreateButton(string name) {

ResetLastError();

if(!ObjectCreate(0, name, OBJ_BUTTON, 0, 0, 0)) {

Print(__FUNCTION__, "! Error code = ", GetLastError());

return(false);

}

ObjectSetInteger(0, name, OBJPROP_XDISTANCE, 100);

ObjectSetInteger(0, name, OBJPROP_YDISTANCE, 100);

ObjectSetInteger(0, name, OBJPROP_XSIZE, 50);

ObjectSetInteger(0, name, OBJPROP_YSIZE, 20);

ObjectSetInteger(0, name, OBJPROP_CORNER, CORNER_LEFT_UPPER);

ObjectSetString(0, name, OBJPROP_TEXT, "Button");

ObjectSetString(0, name, OBJPROP_FONT, "Arial");

ObjectSetInteger(0, name, OBJPROP_FONTSIZE, 10);

ObjectSetInteger(0, name, OBJPROP_COLOR, clrBlack);

ObjectSetInteger(0, name, OBJPROP_BGCOLOR, C'236,233,216');

ObjectSetInteger(0, name, OBJPROP_BORDER_COLOR, clrNONE);

ObjectSetInteger(0, name, OBJPROP_BACK, false);

ObjectSetInteger(0, name, OBJPROP_STATE, false);

ObjectSetInteger(0, name, OBJPROP_SELECTABLE, false);

ObjectSetInteger(0, name, OBJPROP_SELECTED, false);

ObjectSetInteger(0, name, OBJPROP_HIDDEN, true);

ObjectSetInteger(0, name, OBJPROP_ZORDER, 0);

return(true);

}

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

bool CreateEdit(string name) {

ResetLastError();

if(!ObjectCreate(0, name, OBJ_EDIT, 0, 0, 0)) {

Print(__FUNCTION__, "! Error code = ", GetLastError());

return(false);

}

ObjectSetInteger(0, name, OBJPROP_XDISTANCE, 100);

ObjectSetInteger(0, name, OBJPROP_YDISTANCE, 100);

ObjectSetInteger(0, name, OBJPROP_XSIZE, 100);

ObjectSetInteger(0, name, OBJPROP_YSIZE, 20);

ObjectSetString(0, name, OBJPROP_TEXT, "");

ObjectSetString(0, name, OBJPROP_FONT, "Arial");

ObjectSetInteger(0, name, OBJPROP_FONTSIZE, 10);

ObjectSetInteger(0, name, OBJPROP_ALIGN, ALIGN_CENTER);

ObjectSetInteger(0, name, OBJPROP_READONLY, true);

ObjectSetInteger(0, name, OBJPROP_CORNER, CORNER_LEFT_UPPER);

ObjectSetInteger(0, name, OBJPROP_COLOR, clrBlack);

ObjectSetInteger(0, name, OBJPROP_BGCOLOR, clrWhite);

ObjectSetInteger(0, name, OBJPROP_BORDER_COLOR, clrDimGray);

ObjectSetInteger(0, name, OBJPROP_BACK, false);

ObjectSetInteger(0, name, OBJPROP_SELECTABLE, false);

ObjectSetInteger(0, name, OBJPROP_SELECTED, false);

ObjectSetInteger(0, name, OBJPROP_HIDDEN, true);

ObjectSetInteger(0, name, OBJPROP_ZORDER, 0);

return(true);

}

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

void ObjectSetXY(string name, int x, int y) {

ObjectSet(name, OBJPROP_XDISTANCE, x);

ObjectSet(name, OBJPROP_YDISTANCE, y);

}

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

void ObjectSetSize(string name, int width, int height) {

ObjectSet(name, OBJPROP_XSIZE, width);

ObjectSet(name, OBJPROP_YSIZE, height);

}

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

class MT4Panel {

public:

string itemsOld[];

string background, title, btnClose, btnMinus;

struct Item {

string name;

int x0;

int y0;

};

Item items[];

int x, y, width, height, titHeight;

bool MouseDown,

MouseOnTitle;

double x0Mouse,

y0Mouse;

MT4Panel() {

this.x = 200;

this.y = 100;

this.width = 400;

this.height = 100;

this.titHeight = 20;

this.MouseDown = false;

this.MouseOnTitle = false;

this.x0Mouse = 0;

this.y0Mouse = 0;

static int MyObject_ID = 0;

this.background = "MT4Panel-background" + MyObject_ID;

this.title = "MT4Panel-title" + MyObject_ID;

this.btnClose = "MT4Panel-btnClose" + MyObject_ID;

this.btnMinus = "MT4Panel-btnMinus" + MyObject_ID;

MyObject_ID++;

this.createModal();

ChartSetInteger(0, CHART_EVENT_MOUSE_MOVE, 1);

}

void createModal() {

CreateEdit(this.background);

ObjectSetInteger(0, this.background, OBJPROP_BGCOLOR, clrLavender);

CreateEdit(this.title);

ObjectSetInteger(0, this.title, OBJPROP_BGCOLOR, clrWhite);

ObjectSetInteger(0, this.title, OBJPROP_FONTSIZE, 12);

ObjectSetText(this.title, "Dashboard MT4-Panel");

CreateButton(this.btnClose);

ObjectSetInteger(0, this.btnClose, OBJPROP_BGCOLOR, clrWhite);

ObjectSetInteger(0, this.btnClose, OBJPROP_FONTSIZE, 12);

ObjectSetText(this.btnClose, "x");

CreateButton(this.btnMinus);

ObjectSetInteger(0, this.btnMinus, OBJPROP_BGCOLOR, clrWhite);

ObjectSetInteger(0, this.btnMinus, OBJPROP_FONTSIZE, 12);

ObjectSetText(this.btnMinus, "-");

this.addItem(this.background, 0, 0);

this.addItem(this.title, 0, 0);

this.addItem(this.btnClose, this.width - this.titHeight, 0);

this.addItem(this.btnMinus, this.width - this.titHeight * 2, 0);

this.drawSize();

}

void drawSize() {

ObjectSetSize(this.background, this.width, this.height);

ObjectSetSize(this.title, this.width - this.titHeight * 2, this.titHeight);

ObjectSetSize(this.btnClose, this.titHeight, this.titHeight);

ObjectSetSize(this.btnMinus, this.titHeight, this.titHeight);

}

void drawPosition() {

setItemPosition(this.btnClose, this.width - this.titHeight, 0);

setItemPosition(this.btnMinus, this.width - this.titHeight * 2, 0);

}

void setSize(int width, int height) {

this.width = width;

this.height = height;

drawSize();

drawPosition();

}

void setTitleHeight(int titHeight) {

this.titHeight = titHeight;

drawSize();

drawPosition();

}

void addItem(string name, int x0, int y0) {

int s = ArraySize(this.items);

ArrayResize(this.items, s + 1, 10);

this.items[s].name = name;

this.setItemPosition(s, x0, y0);

}

void setItemPosition(int i, int x0, int y0) {

this.items[i].x0 = x0;

this.items[i].y0 = y0;

ObjectSetXY(this.items[i].name, this.x + x0, this.y + y0);

}

void setItemPosition(string name, int x0, int y0) {

int s = ArraySize(this.items);

int n = -1;

for(int i = 0; i < s; i++) {

if(this.items[i].name == name) {

n = i;

break;

}

if(n > -1) setItemPosition(n, x0, y0);

}

void setPosition(int x, int y) {

this.x = x;

this.y = y;

int s = ArraySize(this.items);

for(int i = 0; i < s; i++) {

string n = this.items[i].name;

int xN = this.x + this.items[i].x0;

int yN = this.y + this.items[i].y0;

ObjectSetXY(n, xN, yN);

}

void showOnTop() {

bool state = ObjectGet(this.btnMinus, OBJPROP_STATE);

int s = ArraySize(this.items);

for(int i = 0; i < s; i++) {

ObjectSetInteger(0, this.items[i].name, OBJPROP_TIMEFRAMES, EMPTY);

if(!state) {

ObjectSetInteger(0, this.items[i].name, OBJPROP_TIMEFRAMES, OBJ_ALL_PERIODS);

} else if(state && 0 < i && i <= 3) {

ObjectSetInteger(0, this.items[i].name, OBJPROP_TIMEFRAMES, OBJ_ALL_PERIODS);

}

void deletePanel() {

int s = ArraySize(this.items);

for(int i = 0; i < s; i++) {

ObjectDelete(0, this.items[i].name);

}

void onEventPanel(int id, long lparam, double dparam, string sparam) {

if(id == CHARTEVENT_MOUSE_MOVE) {

if(sparam == "1" && !this.MouseDown) {

this.MouseDown = true;

this.x0Mouse = lparam - this.x;

this.y0Mouse = dparam - this.y;

if(this.x0Mouse > 0 && this.x0Mouse < this.width && this.y0Mouse > 0 && this.y0Mouse < this.titHeight) {

this.MouseOnTitle = true;

this.showOnTop();

}

//action when hold down mouse and move

if(sparam == "1" && this.MouseDown) {

if(this.MouseOnTitle) {

int xNew = lparam - this.x0Mouse;

int yNew = dparam - this.y0Mouse;

int xMin = 100 - this.width;

int yMin = 0;

int xMax = ChartGetInteger(0, CHART_WIDTH_IN_PIXELS, 0) - 100;

int yMax = ChartGetInteger(0, CHART_HEIGHT_IN_PIXELS, 0) - this.titHeight;

if(xNew < xMin) xNew = xMin;

if(yNew < yMin) yNew = yMin;

if(xNew > xMax) xNew = xMax;

if(yNew > yMax) yNew = yMax;

this.setPosition(xNew, yNew);

ChartSetInteger(ChartID(), CHART_MOUSE_SCROLL, 0);

}

//action when up mouse

if(sparam == "0" && this.MouseDown) {

this.MouseDown = false;

this.MouseOnTitle = false;

ChartSetInteger(ChartID(), CHART_MOUSE_SCROLL, 1);

}

if(id == CHARTEVENT_OBJECT_CLICK) {

if(sparam == this.btnMinus) {

this.showOnTop();

} else if(sparam == this.btnClose) {

this.deletePanel();

}

};

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

Class MT4Panel

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