| | //+------------------------------------------------------------------+
|
| | //| RadioGroup.mqh |
|
| | //| Copyright 2000-2025, MetaQuotes Ltd. |
|
| | //| https://www.mql5.com |
|
| | //+------------------------------------------------------------------+
|
| | #include "WndClient.mqh"
|
| | #include "RadioButton.mqh"
|
| | #include <Arrays\ArrayString.mqh>
|
| | #include <Arrays\ArrayLong.mqh>
|
| | //+------------------------------------------------------------------+
|
| | //| Class CRadioGroup |
|
| | //| Usage: view and edit radio buttons |
|
| | //+------------------------------------------------------------------+
|
| | class CRadioGroup : public CWndClient
|
| | {
|
| | private:
|
| | //--- dependent controls
|
| | CRadioButton m_rows[]; // array of the row objects
|
| | //--- set up
|
| | int m_offset; // index of first visible row in array of rows
|
| | int m_total_view; // number of visible rows
|
| | int m_item_height; // height of visible row
|
| | //--- data
|
| | CArrayString m_strings; // array of rows
|
| | CArrayLong m_values; // array of values
|
| | int m_current; // index of current row in array of rows
|
| |
|
| | public:
|
| | CRadioGroup(void);
|
| | ~CRadioGroup(void);
|
| | //--- create
|
| | virtual bool Create(const long chart,const string name,const int subwin,const int x1,const int y1,const int x2,const int y2);
|
| | virtual void Destroy(const int reason=0);
|
| | //--- chart event handler
|
| | virtual bool OnEvent(const int id,const long &lparam,const double &dparam,const string &sparam);
|
| | //--- fill
|
| | virtual bool AddItem(const string item,const long value=0);
|
| | //--- data
|
| | long Value(void) const { return(m_values.At(m_current)); }
|
| | bool Value(const long value);
|
| | bool ValueCheck(long value) const;
|
| | //--- state
|
| | virtual bool Show(void);
|
| | //--- methods for working with files
|
| | virtual bool Save(const int file_handle);
|
| | virtual bool Load(const int file_handle);
|
| |
|
| | protected:
|
| | //--- create dependent controls
|
| | bool CreateButton(const int index);
|
| | //--- handlers of the dependent controls events
|
| | virtual bool OnVScrollShow(void);
|
| | virtual bool OnVScrollHide(void);
|
| | virtual bool OnScrollLineDown(void);
|
| | virtual bool OnScrollLineUp(void);
|
| | virtual bool OnChangeItem(const int row_index);
|
| | //--- redraw
|
| | bool Redraw(void);
|
| | bool RowState(const int index,const bool select);
|
| | void Select(const int index);
|
| | };
|
| | //+------------------------------------------------------------------+
|
| | //| Common handler of chart events |
|
| | //+------------------------------------------------------------------+
|
| | EVENT_MAP_BEGIN(CRadioGroup)
|
| | ON_INDEXED_EVENT(ON_CHANGE,m_rows,OnChangeItem)
|
| | EVENT_MAP_END(CWndClient)
|
| | //+------------------------------------------------------------------+
|
| | //| Constructor |
|
| | //+------------------------------------------------------------------+
|
| | CRadioGroup::CRadioGroup(void) : m_offset(0),
|
| | m_total_view(0),
|
| | m_item_height(CONTROLS_LIST_ITEM_HEIGHT),
|
| | m_current(CONTROLS_INVALID_INDEX)
|
| | {
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| Destructor |
|
| | //+------------------------------------------------------------------+
|
| | CRadioGroup::~CRadioGroup(void)
|
| | {
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| Create a control |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::Create(const long chart,const string name,const int subwin,const int x1,const int y1,const int x2,const int y2)
|
| | {
|
| | //--- determine the number of visible rows
|
| | m_total_view=(y2-y1)/m_item_height;
|
| | //--- check the number of visible rows
|
| | if(m_total_view<1)
|
| | return(false);
|
| | //--- call method of the parent class
|
| | if(!CWndClient::Create(chart,name,subwin,x1,y1,x2,y2))
|
| | return(false);
|
| | //--- set up
|
| | if(!m_background.ColorBackground(CONTROLS_RADIOGROUP_COLOR_BG))
|
| | return(false);
|
| | if(!m_background.ColorBorder(CONTROLS_RADIOGROUP_COLOR_BORDER))
|
| | return(false);
|
| | //--- create dependent controls
|
| | ArrayResize(m_rows,m_total_view);
|
| | for(int i=0;i<m_total_view;i++)
|
| | if(!CreateButton(i))
|
| | return(false);
|
| | //--- succeed
|
| | return(true);
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| Delete group of controls |
|
| | //+------------------------------------------------------------------+
|
| | void CRadioGroup::Destroy(const int reason)
|
| | {
|
| | //--- call of the method of the parent class
|
| | CWndClient::Destroy(reason);
|
| | //--- clear items
|
| | m_strings.Clear();
|
| | m_values.Clear();
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| Create "row" |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::CreateButton(const int index)
|
| | {
|
| | //--- calculate coordinates
|
| | int x1=CONTROLS_BORDER_WIDTH;
|
| | int y1=CONTROLS_BORDER_WIDTH+m_item_height*index;
|
| | int x2=Width()-CONTROLS_BORDER_WIDTH;
|
| | int y2=y1+m_item_height;
|
| | //--- create
|
| | if(!m_rows[index].Create(m_chart_id,m_name+"Item"+IntegerToString(index),m_subwin,x1,y1,x2,y2))
|
| | return(false);
|
| | if(!m_rows[index].Text(""))
|
| | return(false);
|
| | if(!Add(m_rows[index]))
|
| | return(false);
|
| | m_rows[index].Hide();
|
| | //---
|
| | return(true);
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| Add item (row) |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::AddItem(const string item,const long value)
|
| | {
|
| | //--- check value
|
| | if(value!=0 && !ValueCheck(value))
|
| | return(false);
|
| | //--- add
|
| | if(!m_strings.Add(item))
|
| | return(false);
|
| | if(!m_values.Add(value))
|
| | return(false);
|
| | //--- number of items
|
| | int total=m_strings.Total();
|
| | //--- exit if number of items does not exceed the size of visible area
|
| | if(total<m_total_view+1)
|
| | {
|
| | if(IS_VISIBLE && total!=0)
|
| | m_rows[total-1].Show();
|
| | return(Redraw());
|
| | }
|
| | //--- if number of items exceeded the size of visible area
|
| | if(total==m_total_view+1)
|
| | {
|
| | //--- enable vertical scrollbar
|
| | if(!VScrolled(true))
|
| | return(false);
|
| | //--- and immediately make it invisible (if needed)
|
| | if(!IS_VISIBLE)
|
| | m_scroll_v.Visible(false);
|
| |
|
| | }
|
| | //--- set up the scrollbar
|
| | m_scroll_v.MaxPos(m_strings.Total()-m_total_view);
|
| | //--- redraw
|
| | return(Redraw());
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::Value(const long value)
|
| | {
|
| | //--- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
| | int total=m_values.Total();
|
| | //---
|
| | for(int i=0;i<total;i++)
|
| | if(m_values.At(i)==value)
|
| | Select(i+m_offset);
|
| | //---
|
| | return(true);
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::ValueCheck(long value) const
|
| | {
|
| | //--- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
| | int total=m_values.Total();
|
| | //---
|
| | for(int i=0;i<total;i++)
|
| | if(m_values.At(i)==value)
|
| | return(false);
|
| | //---
|
| | return(true);
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| Makes the group visible |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::Show(void)
|
| | {
|
| | //--- call of the method of the parent class
|
| | if(!CWndClient::Show())
|
| | return(false);
|
| | //--- loop by rows
|
| | int total=m_values.Total();
|
| | for(int i=total;i<m_total_view;i++)
|
| | m_rows[i].Hide();
|
| | //--- handled
|
| | return(true);
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::Save(const int file_handle)
|
| | {
|
| | //--- check
|
| | if(file_handle==INVALID_HANDLE)
|
| | return(false);
|
| | //---
|
| | FileWriteLong(file_handle,Value());
|
| | //--- succeed
|
| | return(true);
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::Load(const int file_handle)
|
| | {
|
| | //--- check
|
| | if(file_handle==INVALID_HANDLE)
|
| | return(false);
|
| | //---
|
| | if(!FileIsEnding(file_handle))
|
| | Value(FileReadLong(file_handle));
|
| | //--- succeed
|
| | return(true);
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| Sett current item |
|
| | //+------------------------------------------------------------------+
|
| | void CRadioGroup::Select(const int index)
|
| | {
|
| | //--- disable the "ON" state
|
| | if(m_current!=-1)
|
| | RowState(m_current-m_offset,false);
|
| | //--- enable the "ON" state
|
| | if(index!=-1)
|
| | RowState(index-m_offset,true);
|
| | //--- save value
|
| | m_current=index;
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| Redraw |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::Redraw(void)
|
| | {
|
| | //--- loop by "rows"
|
| | for(int i=0;i<m_total_view;i++)
|
| | {
|
| | //--- copy text
|
| | if(!m_rows[i].Text(m_strings.At(i+m_offset)))
|
| | return(false);
|
| | //--- select
|
| | if(!RowState(i,(m_current==i+m_offset)))
|
| | return(false);
|
| | }
|
| | //--- succeed
|
| | return(true);
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| Change state |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::RowState(const int index,const bool select)
|
| | {
|
| | //--- check index
|
| | if(index<0 || index>=ArraySize(m_rows))
|
| | return(true);
|
| | //--- change state
|
| | return(m_rows[index].State(select));
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| Handler of the "Show vertical scrollbar" event |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::OnVScrollShow(void)
|
| | {
|
| | //--- loop by "rows"
|
| | for(int i=0;i<m_total_view;i++)
|
| | {
|
| | //--- resize "rows" according to shown vertical scrollbar
|
| | m_rows[i].Width(Width()-(CONTROLS_SCROLL_SIZE+CONTROLS_BORDER_WIDTH));
|
| | }
|
| | //--- check visibility
|
| | if(!IS_VISIBLE)
|
| | {
|
| | m_scroll_v.Visible(false);
|
| | return(true);
|
| | }
|
| | //---
|
| | return(true);
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| Handler of the "Hide vertical scrollbar" event |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::OnVScrollHide(void)
|
| | {
|
| | //--- check visibility
|
| | if(!IS_VISIBLE)
|
| | return(true);
|
| | //--- loop by "rows"
|
| | for(int i=0;i<m_total_view;i++)
|
| | {
|
| | //--- resize "rows" according to hidden vertical scroll bar
|
| | m_rows[i].Width(Width()-CONTROLS_BORDER_WIDTH);
|
| | }
|
| | //---
|
| | return(true);
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| Handler of the "Scroll up for one row" event |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::OnScrollLineUp(void)
|
| | {
|
| | //--- get new offset
|
| | m_offset=m_scroll_v.CurrPos();
|
| | //--- redraw
|
| | return(Redraw());
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| Handler of the "Scroll down for one row" event |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::OnScrollLineDown(void)
|
| | {
|
| | //--- get new offset
|
| | m_offset=m_scroll_v.CurrPos();
|
| | //--- redraw
|
| | return(Redraw());
|
| | }
|
| | //+------------------------------------------------------------------+
|
| | //| Handler of changing a "row" state |
|
| | //+------------------------------------------------------------------+
|
| | bool CRadioGroup::OnChangeItem(const int row_index)
|
| | {
|
| | //--- select "row"
|
| | Select(row_index+m_offset);
|
| | //--- send notification
|
| | EventChartCustom(CONTROLS_SELF_MESSAGE,ON_CHANGE,m_id,0.0,m_name);
|
| | //--- handled
|
| | return(true);
|
| | }
|
| | //+------------------------------------------------------------------+
|
