Dialog.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 "Environment.h"
#include "Button.h"
class Dialog : public Window, public ITouchEventReceiver
{
    IDialogClosedEventReceiver *_dialogClosedEventReceiver;
protected:
    Button * _btnOK;
    Button * _btnCancel;
public:

    Dialog(const __FlashStringHelper * caption,int left,int top,int width,int height):Window(caption,left,top,width,height)
    {
        _btnOK=NULL;
        _btnCancel=NULL;
        _dialogClosedEventReceiver=NULL;
        SetDecorators(Environment::Get()->FindDecorators(F("Dialog")));
        TextBoxFString *captionText=new TextBoxFString(2,2,width-4,20,caption);
        captionText->SetDecorators(Environment::Get()->FindDecorators(F("DialogCaption")));
        captionText->SetFont(BigFont);
        captionText->SetMargins(0,1);
        AddChild(captionText);
    }

    Dialog(int left,int top,int width,int height):Window(F("Dialog"),left,top,width,height)
    {
        _btnOK=NULL;
        _btnCancel=NULL;
        _dialogClosedEventReceiver=NULL;
        SetDecorators(Environment::Get()->FindDecorators(F("Dialog")));
    }

    void RegisterEndDialogEventReceiver(IDialogClosedEventReceiver *receiver)
    {
        _dialogClosedEventReceiver=receiver;
    }
    void NotifyTouch(Window *window)
    {
        if(window!=NULL && (window == _btnOK || window == _btnCancel))
        {
            if(_dialogClosedEventReceiver!=NULL)
            {
                _dialogClosedEventReceiver->NotifyDialogClosed(this,window == _btnOK?IDialogClosedEventReceiver::OK:IDialogClosedEventReceiver::Cancel);
            }
        }
        else
            DoControlMessage(window);
    }
    virtual void DoControlMessage(Window *window)=0;
};