#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QMainWindow>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QMessageBox>
#include<QByteArray>
 
 
namespace Ui {
    class MainWindow;
}
 
class MainWindow : public QMainWindow {
    Q_OBJECT
public:
    MainWindow(QWidget *parent = 0);
    ~MainWindow();
 
protected:
    void changeEvent(QEvent *e);
 
private slots:
    void finished(QNetworkReply *reply);
    void DoHttpGet();
    void activateGetWidgets();
    void HideWidgets();
    void clearWidgets();
    void activatePostWidgets();
 
private:
    Ui::MainWindow *ui;
 
    QNetworkAccessManager *nam;
};
 
#endif // MAINWINDOW_H

#include "mainwindow.h"
#include "ui_mainwindow.h"
 
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
 
    nam = new QNetworkAccessManager(this);
    HideWidgets();
    connect(ui->getButton,SIGNAL(clicked()),this,SLOT(activateGetWidgets()));
    connect(ui->submitButton,SIGNAL(clicked()),this,SLOT(DoHttpGet()));
    connect(ui->resetButton,SIGNAL(clicked()),this,SLOT(clearWidgets()));
    connect(nam,SIGNAL(finished(QNetworkReply*)),this,SLOT(finished(QNetworkReply*)));
    connect(ui->postButton,SIGNAL(clicked()),this,SLOT(activatePostWidgets()));
}
 
MainWindow::~MainWindow()
{
    delete ui;
}
 
void MainWindow::changeEvent(QEvent *e)
{
    QMainWindow::changeEvent(e);
    switch (e->type()) {
    case QEvent::LanguageChange:
        ui->retranslateUi(this);
        break;
    default:
        break;
    }
}
 
void MainWindow::activateGetWidgets()
	{
      ui->urlLabel->setHidden(false);
      ui->urlLine->setHidden(false);
      ui->submitButton->setHidden(false);
      ui->textBrowser->setHidden(false);
      ui->responseTitleLabel->setHidden(false);
      ui->getButton->setHidden(true);
      ui->postButton->setHidden(true);
 
	}
 
void MainWindow::activatePostWidgets()
	{
	ui->dataLabel->setHidden(false);
	ui->dataLine->setHidden(false);
	activateGetWidgets();
 
	}
 
 
 
void MainWindow::finished(QNetworkReply *reply)
{
    if(reply->error() == QNetworkReply::NoError)
    {
        ui->textBrowser->setText(reply->readAll());
 
    }
    else
    {
        ui->textBrowser->setText(reply->errorString());
    }
}
 
void MainWindow::DoHttpGet()
	{
		ui->resetButton->setHidden(false);
        QString url = ui->urlLine->text();
        QString data = ui->dataLine->text();
        QByteArray postData; 
        postData.append(data.toAscii());
        if(postData.isEmpty() == true)
                {
                nam->get(QNetworkRequest(QUrl(url)));
                }
        else
                {
                nam->post(QNetworkRequest(QUrl(url)),postData);
                }
 
	}
 
void MainWindow::HideWidgets()
	{
    ui->urlLabel->setHidden(true);
    ui->urlLine->setHidden(true);
    ui->dataLabel->setHidden(true);
    ui->dataLine->setHidden(true);
    ui->submitButton->setHidden(true);
    ui->responseTitleLabel->setHidden(true);
    ui->textBrowser->setHidden(true);
    ui->resetButton->setHidden(true);
 
	}
 
void MainWindow::clearWidgets()
	{
    ui->urlLabel->setHidden(true);
    ui->urlLine->setHidden(true);
    ui->dataLabel->setHidden(true);
    ui->dataLine->setHidden(true);
    ui->submitButton->setHidden(true);
    ui->responseTitleLabel->setHidden(true);
    ui->textBrowser->setHidden(true);
    ui->resetButton->setHidden(true);
    ui->urlLine->clear();
    ui->textBrowser->clear();
    ui->dataLine->clear();
    ui->getButton->setHidden(false);
    ui->postButton->setHidden(false);
 
	}