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amirghadiri1987
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//+------------------------------------------------------------------+
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//| Element.mqh |
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//| Copyright 2023, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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#include "Objects.mqh"
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#include "Colors.mqh"
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//+------------------------------------------------------------------+
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//| Base class of control |
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//+------------------------------------------------------------------+
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class CElement
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{
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protected:
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//--- Class instance for working with the color
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CColors m_clr;
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//--- (1) Name of class and (2) program, (3) program type
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string m_class_name;
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string m_program_name;
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ENUM_PROGRAM_TYPE m_program_type;
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//--- Identifier and window number of the chart
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long m_chart_id;
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int m_subwin;
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//--- Identifier and index of control
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int m_id;
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int m_index;
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//--- Coordinates and boundaries
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int m_x;
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int m_y;
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int m_x2;
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int m_y2;
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int m_x_size;
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int m_y_size;
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int m_x_gap;
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int m_y_gap;
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//--- Control states
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bool m_is_visible;
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bool m_is_dropdown;
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int m_is_object_tabs;
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//--- Focus
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bool m_mouse_focus;
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//--- Chart corner and anchor point of objects
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ENUM_BASE_CORNER m_corner;
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ENUM_ANCHOR_POINT m_anchor;
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//--- Number of colors in the gradient
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int m_gradient_colors_total;
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//--- Common array of pointers to all objects in this control
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CChartObject *m_objects[];
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//---
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public:
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CElement(void);
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~CElement(void);
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//--- (1) Obtaining and setting the class name, (2) obtaining the program name,
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// (3) obtaining the program type, (4) setting the number of the chart window
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string ClassName(void) const { return(m_class_name); }
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void ClassName(const string class_name) { m_class_name=class_name; }
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string ProgramName(void) const { return(m_program_name); }
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ENUM_PROGRAM_TYPE ProgramType(void) const { return(m_program_type); }
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void SubwindowNumber(const int number) { m_subwin=number; }
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//--- Obtaining the object pointer by the specified index
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CChartObject *Object(const int index);
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//--- (1) Obtaining the number of the control objects, (2) emptying the object array
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int ObjectsElementTotal(void) const { return(::ArraySize(m_objects)); }
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void FreeObjectsArray(void) { ::ArrayFree(m_objects); }
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//--- Setting and obtaining the control identifier
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void Id(const int id) { m_id=id; }
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int Id(void) const { return(m_id); }
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//--- Setting and obtaining the control index
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void Index(const int index) { m_index=index; }
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int Index(void) const { return(m_index); }
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//--- Boundaries
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int X(void) const { return(m_x); }
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void X(const int x) { m_x=x; }
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int Y(void) const { return(m_y); }
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void Y(const int y) { m_y=y; }
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int X2(void) const { return(m_x+m_x_size); }
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int Y2(void) const { return(m_y+m_y_size); }
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//--- Size
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int XSize(void) const { return(m_x_size); }
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void XSize(const int x_size) { m_x_size=x_size; }
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int YSize(void) const { return(m_y_size); }
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void YSize(const int y_size) { m_y_size=y_size; }
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//--- Indents from the edge point (xy)
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int XGap(void) const { return(m_x_gap); }
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void XGap(const int x_gap) { m_x_gap=x_gap; }
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int YGap(void) const { return(m_y_gap); }
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void YGap(const int y_gap) { m_y_gap=y_gap; }
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//--- Control states
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void IsVisible(const bool flag) { m_is_visible=flag; }
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bool IsVisible(void) const { return(m_is_visible); }
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void IsDropdown(const bool flag) { m_is_dropdown=flag; }
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bool IsDropdown(void) const { return(m_is_dropdown); }
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void IsObjectTabs(const int index) { m_is_object_tabs=index; }
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int IsObjectTabs(void) const { return(m_is_object_tabs); }
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//--- (1) Focus, (2) setting the gradient size
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bool MouseFocus(void) const { return(m_mouse_focus); }
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void MouseFocus(const bool focus) { m_mouse_focus=focus; }
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void GradientColorsTotal(const int total) { m_gradient_colors_total=total; }
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//---
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public:
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//--- Chart event handler
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virtual void OnEvent(const int id,const long &lparam,const double &dparam,const string &sparam) {}
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//--- Timer
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virtual void OnEventTimer(void) {}
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//--- Moving the control
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virtual void Moving(const int x,const int y) {}
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//--- (1) Showing, (2) hiding, (3) resetting, (4) deleting
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virtual void Show(void) {}
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virtual void Hide(void) {}
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virtual void Reset(void) {}
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virtual void Delete(void) {}
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//--- (1) Setting, (2) resetting of priorities for left clicking on mouse
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virtual void SetZorders(void) {}
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virtual void ResetZorders(void) {}
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//---
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protected:
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//--- Method to add pointers of primitive objects to the common array
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void AddToArray(CChartObject &object);
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//--- Initializing the array gradient
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void InitColorArray(const color outer_color,const color hover_color,color &color_array[]);
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//--- Changing the object color
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void ChangeObjectColor(const string name,const bool mouse_focus,const ENUM_OBJECT_PROPERTY_INTEGER property,
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const color outer_color,const color hover_color,const color &color_array[]);
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};
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//+------------------------------------------------------------------+
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//| Constructor |
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//+------------------------------------------------------------------+
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CElement::CElement(void) : m_x(0),
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m_y(0),
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m_x2(0),
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m_y2(0),
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m_x_size(0),
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m_y_size(0),
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m_x_gap(0),
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m_y_gap(0),
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m_is_visible(true),
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m_is_dropdown(false),
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m_mouse_focus(false),
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m_id(WRONG_VALUE),
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m_index(WRONG_VALUE),
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m_gradient_colors_total(3),
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m_is_object_tabs(WRONG_VALUE),
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m_corner(CORNER_LEFT_UPPER),
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m_anchor(ANCHOR_LEFT_UPPER),
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m_program_name(PROGRAM_NAME),
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m_program_type(PROGRAM_TYPE),
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m_class_name("")
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{
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}
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//+------------------------------------------------------------------+
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//| Destructor |
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//+------------------------------------------------------------------+
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CElement::~CElement(void)
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{
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}
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//+------------------------------------------------------------------+
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//| Returns the object pointer of the control by index |
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//+------------------------------------------------------------------+
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CChartObject *CElement::Object(const int index)
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{
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int array_size=::ArraySize(m_objects);
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//--- Verifying the size of the object array
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if(array_size<1)
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{
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::Print(__FUNCTION__," > No ("+m_class_name+") objects in this control!");
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return(NULL);
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}
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//--- Correction in case the size was exceeded
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int i=(index>=array_size)? array_size-1 :(index<0)? 0 : index;
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//--- Return the object pointer
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return(m_objects[i]);
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}
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//+------------------------------------------------------------------+
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//| Adds object pointer to an array |
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//+------------------------------------------------------------------+
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void CElement::AddToArray(CChartObject &object)
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{
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int size=ObjectsElementTotal();
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::ArrayResize(m_objects,size+1);
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m_objects[size]=::GetPointer(object);
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}
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//+------------------------------------------------------------------+
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//| Initialization of the gradient array |
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//+------------------------------------------------------------------+
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void CElement::InitColorArray(const color outer_color,const color hover_color,color &color_array[])
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{
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//--- Array of the gradient colors
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color colors[2];
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colors[0]=outer_color;
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colors[1]=hover_color;
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//--- Formation of the color array
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m_clr.Gradient(colors,color_array,m_gradient_colors_total);
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}
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//+------------------------------------------------------------------+
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//| Changing of object color when hovering the cursor over it |
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//+------------------------------------------------------------------+
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void CElement::ChangeObjectColor(const string name,const bool mouse_focus,const ENUM_OBJECT_PROPERTY_INTEGER property,
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const color outer_color,const color hover_color,const color &color_array[])
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{
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if(::ArraySize(color_array)<1)
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return;
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//--- Obtain the current object color
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color current_color=(color)::ObjectGetInteger(m_chart_id,name,property);
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//--- If the cursor is over the object
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if(mouse_focus)
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{
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//--- Leave, if the specified color has been reached
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if(current_color==hover_color)
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return;
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//--- Move from the first to the last one
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for(int i=0; i<m_gradient_colors_total; i++)
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{
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//--- If colors do not match, move to the following
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if(color_array[i]!=current_color)
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continue;
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//---
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color new_color=(i+1==m_gradient_colors_total)? color_array[i]: color_array[i+1];
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//--- Change color
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::ObjectSetInteger(m_chart_id,name,property,new_color);
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break;
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}
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}
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//--- If the cursor is not in the area of the object
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else
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{
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//--- Leave, if the specified color has been reached
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if(current_color==outer_color)
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return;
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//--- Move from the last to the first one
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for(int i=m_gradient_colors_total-1; i>=0; i--)
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{
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//--- If colors do not match, move to the following
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if(color_array[i]!=current_color)
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continue;
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//---
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color new_color=(i-1<0)? color_array[i]: color_array[i-1];
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//--- Change color
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::ObjectSetInteger(m_chart_id,name,property,new_color);
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break;
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}
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}
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}
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//+------------------------------------------------------------------+
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