KeyboardWindow.h

#pragma once
/*
  AWind.h - Arduino window library support for Color TFT LCD Boards
  Copyright (C)2015 Andrei Degtiarev. All right reserved
  

  You can always find the latest version of the library at 
  https://github.com/AndreiDegtiarev/AWind


  This library is free software; you can redistribute it and/or
  modify it under the terms of the CC BY-NC-SA 3.0 license.
  Please see the included documents for further information.

  Commercial use of this library requires you to buy a license that
  will allow commercial use. This includes using the library,
  modified or not, as a tool to sell products.

  The license applies to all part of the library including the 
  examples and tools supplied with the library.
*/
#include "TextBoxNumber.h"
#include "TextBoxString.h"
#include "IDialogClosedEventReceiver.h"
#include "DecoratorPrimitives.h"
#include "Dialog.h"


extern uint8_t BigFont[];
extern uint8_t SmallFont[];
class KeyboardWindow :  public Dialog
{
    //TextBoxNumber *_targetTextBox;
    TextBoxString * _editField;
    TextBoxNumber _digidWindows[10];
    TextBoxFString * _pointSymbol;
    TextBoxFString * _backspaceSymbol;

    char _editBuffer[15];
    int  _editPosition;
    const static int _buttonSize=39;
    const static int _buttonDistance=5;
    const static int _textOffset=9;
public:

    KeyboardWindow(int left,int top):Dialog(left,top,7*(_buttonSize+_buttonDistance)+_buttonDistance,3*(_buttonSize+_buttonDistance)+_buttonDistance)
    {

        int x=_buttonDistance;
        int y=_buttonDistance;
        _editField=new TextBoxString(x,y,Width()-2*_buttonDistance,_buttonSize,"");
        _editField->SetDecorators(Environment::Get()->FindDecorators(F("EditTextBoxReadOnly")));
        _editField->SetFont(BigFont);
        y+=_buttonSize+_buttonDistance;
        _backspaceSymbol=new Button(5*(_buttonSize+_buttonDistance)+_buttonDistance,y,_buttonSize,_buttonSize,F("<-"));
        _btnOK=new Button(6*(_buttonSize+_buttonDistance)+_buttonDistance,y,_buttonSize,_buttonSize,F("E"));
        DecoratorList * btnDecorators=Environment::Get()->FindDecorators(F("Button"));
        for(int i=0;i<10;i++)
        {
            x=(i-(i<5?0:5))*(_buttonSize+_buttonDistance);
            if(i==5)
                y+=_buttonSize+_buttonDistance;
            //_digidWindows[i]=new TextBoxNumber(x+_buttonDistance,y,_buttonSize,_buttonSize,0);
            _digidWindows[i].Move(x+_buttonDistance,y,_buttonSize,_buttonSize);
            _digidWindows[i].SetNumber(i);
            _digidWindows[i].SetDecorators(btnDecorators);
            initTextBox(&_digidWindows[i]);
        }
        _pointSymbol=new Button(5*(_buttonSize+_buttonDistance)+_buttonDistance,y,_buttonSize,_buttonSize,F("."));
        _btnCancel=new Button(6*(_buttonSize+_buttonDistance)+_buttonDistance,y,_buttonSize,_buttonSize,F("C"));
        initTextBox(_editField);
        initTextBox(_backspaceSymbol);
        _backspaceSymbol->SetMargins(_textOffset,_textOffset*1.5);
        _backspaceSymbol->SetFont(SmallFont);
        initTextBox(_pointSymbol);
        initTextBox(_btnCancel);
        initTextBox(_btnOK);
    }
protected:
    void initTextBox(TextBox *text)
    {
        text->SetMargins(_textOffset,_textOffset);
        text->RegisterTouchEventReceiver(this);
        AddChild(text);
    }
public:
    void Initialize(float value,int precision)
    {
        _editPosition=0;
        dtostrf(value,0,precision,_editBuffer);
        _editField->SetText(_editBuffer);
        _editField->Invalidate();
        _editPosition=strlen(_editBuffer);
    }
    float GetNumber()
    {
        return atof(_editBuffer);
    }
    void DoControlMessage(Window *window)
    {
        //out<<F("Keybord notify")<<endln;
        //if(Process_OK_Cancel_Touch(window))
        //  return;
        /*if(window == _enterSymbol || window == _cancelSymbol)
        {
            if(_dialogClosedEventReceiver!=NULL)
                _dialogClosedEventReceiver->NotifyDialogClosed(this,window == _enterSymbol?IDialogClosedEventReceiver::OK:IDialogClosedEventReceiver::Cancel);
        }
        else*/
        {
            bool needUpdate=false;
            if(window == _backspaceSymbol && _editPosition>0)
            {
                _editPosition--;
                _editBuffer[_editPosition]=0;
                needUpdate=true;
            }
            else if(window == _pointSymbol && _editPosition<14)
            {
                _editBuffer[_editPosition++]='.';
                _editBuffer[_editPosition]=0;
                needUpdate=true;
            }
            else
            {
                for(int i=0;i<10;i++)
                    if(window == &_digidWindows[i] && _editPosition<14)
                    {
                        _editBuffer[_editPosition++]='0'+i;
                        _editBuffer[_editPosition]=0;
                        needUpdate=true;
                        break;
                    }
            }
            if(needUpdate)
                _editField->SetText(_editBuffer);
        }
    }
};