#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QTreeWidgetItem>
#include <QMetaMethod>
#include <QMetaProperty>
#include "propitem.h"

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::on_pushButton_clicked()
{
    info (ui->pushButton);
    info (ui->treeWidget);
    info (this);
}

// #include <QTreeWidgetItem>
// #include <QMetaMethod>
// #include <QMetaProperty>
void MainWindow::info (QObject * obj)
{
    QTreeWidgetItem * top = new QTreeWidgetItem;
    ui->treeWidget->addTopLevelItem (top);

    QString s = obj->metaObject()->className();
    top->setText (0, s);

    const QMetaObject * cls = obj->metaObject();

    QTreeWidgetItem * above = top;
    const QMetaObject * super = cls->superClass ();
    while (super != NULL)
    {
       QTreeWidgetItem * node = new QTreeWidgetItem;
       node->setText (0, super->className());
       above->addChild (node);
       super = super->superClass();
       above = node;
    }

    QTreeWidgetItem * branch = new QTreeWidgetItem;
    branch->setText (0, "properties");
    top->addChild (branch);

    int n = cls->propertyCount ();
    for (int i = 0; i < n; i++)
    {
        QMetaProperty p = cls->property (i);

        // #include "propitem.h"
        PropItem * node = new PropItem;
        node->obj = obj;
        node->prop = p;

        QVariant value = p.read (obj);
        QString v = value.isNull() ? "null" : value.toString();
        node->setText (0, p.name () + QString (" : ") + p.typeName () +
                                      QString (" = ") + v);
        branch->addChild (node);
    }

    branch = new QTreeWidgetItem;
    branch->setText (0, "methods");
    top->addChild (branch);

    n = cls->methodCount ();
    for (int i = 0; i < n; i++)
    {
        QMetaMethod m = cls->method (i);
        QTreeWidgetItem * node = new QTreeWidgetItem;
        node->setText (0, m.signature ());
        branch->addChild (node);
    }
}

void MainWindow::on_pushButton_2_clicked()
{
    QList <QTreeWidgetItem*> list = ui->treeWidget->selectedItems();
    foreach (QTreeWidgetItem * t , list)
    {
        PropItem * u = dynamic_cast <PropItem*> (t);
        if (u != NULL)
            t->setForeground (0, QColor ("lime"));
        else
            t->setForeground (0, QColor ("red"));

        if (u != NULL)
        {
            QVariant value = ui->lineEdit->text();
            u->prop.write (u->obj, value);
        }
    }
}