File indexing completed on 2024-05-19 05:35:23

 //////////////////////////////////////////////////////////////////////////////
 // oxygenwidgetexplorer.cpp
 // print widget's and parent's information on mouse click
 // -------------------
 //
 // SPDX-FileCopyrightText: 2010 Hugo Pereira Da Costa <hugo.pereira@free.fr>
 //
 // SPDX-License-Identifier: MIT
 //////////////////////////////////////////////////////////////////////////////
 
 #include "oxygenwidgetexplorer.h"
 #include "oxygen.h"
 
 #include <QApplication>
 #include <QMouseEvent>
 #include <QPainter>
 #include <QTextStream>
 
 #include <iostream>
 
 namespace Oxygen
 {
 //________________________________________________
 WidgetExplorer::WidgetExplorer(QObject *parent)
     : QObject(parent)
     , _enabled(false)
     , _drawWidgetRects(false)
 {
     _eventTypes.insert(QEvent::Enter, QStringLiteral("Enter"));
     _eventTypes.insert(QEvent::Leave, QStringLiteral("Leave"));
 
     _eventTypes.insert(QEvent::HoverMove, QStringLiteral("HoverMove"));
     _eventTypes.insert(QEvent::HoverEnter, QStringLiteral("HoverEnter"));
     _eventTypes.insert(QEvent::HoverLeave, QStringLiteral("HoverLeave"));
 
     _eventTypes.insert(QEvent::MouseMove, QStringLiteral("MouseMove"));
     _eventTypes.insert(QEvent::MouseButtonPress, QStringLiteral("MouseButtonPress"));
     _eventTypes.insert(QEvent::MouseButtonRelease, QStringLiteral("MouseButtonRelease"));
 
     _eventTypes.insert(QEvent::FocusIn, QStringLiteral("FocusIn"));
     _eventTypes.insert(QEvent::FocusOut, QStringLiteral("FocusOut"));
 
     // _eventTypes.insert( QEvent::Paint, "Paint" );
 }
 
 //________________________________________________
 void WidgetExplorer::setEnabled(bool value)
 {
     if (value == _enabled)
         return;
     _enabled = value;
 
     qApp->removeEventFilter(this);
     if (_enabled)
         qApp->installEventFilter(this);
 }
 
 //________________________________________________
 bool WidgetExplorer::eventFilter(QObject *object, QEvent *event)
 {
     if (object->isWidgetType()) {
         QString type(_eventTypes[event->type()]);
         if (!type.isEmpty()) {
             std::cout << "Oxygen::WidgetExplorer::eventFilter - widget: " << object << " (" << object->metaObject()->className() << ")";
             std::cout << " type: " << qPrintable(type) << std::endl;
         }
     }
 
     switch (event->type()) {
     case QEvent::Paint:
         if (_drawWidgetRects) {
             QWidget *widget(qobject_cast<QWidget *>(object));
             if (!widget)
                 return false;
 
             QPainter painter(widget);
             painter.setRenderHints(QPainter::Antialiasing);
             painter.setBrush(Qt::NoBrush);
             painter.setPen(Qt::red);
             painter.drawRect(widget->rect());
             painter.end();
         }
         break;
 
     case QEvent::MouseButtonPress: {
         // cast event and check button
         QMouseEvent *mouseEvent(static_cast<QMouseEvent *>(event));
         if (mouseEvent->button() != Qt::LeftButton)
             break;
 
         // case widget and check (should not be necessary)
         QWidget *widget(qobject_cast<QWidget *>(object));
         if (!widget)
             return false;
 
         std::cout << "Oxygen::WidgetExplorer::eventFilter -"
                   << " event: " << event << " type: " << qPrintable(eventType(event->type())) << " widget: " << qPrintable(widgetInformation(widget))
                   << std::endl;
 
         // print parent information
         QWidget *parent(widget->parentWidget());
         while (parent) {
             std::cout << "    parent: " << qPrintable(widgetInformation(parent)) << std::endl;
             parent = parent->parentWidget();
         }
         std::cout << "" << std::endl;
 
     } break;
 
     default:
         break;
     }
 
     // always return false to go on with normal chain
     return false;
 }
 
 //________________________________________________
 QString WidgetExplorer::eventType(const QEvent::Type &type) const
 {
     switch (type) {
     case QEvent::MouseButtonPress:
         return QStringLiteral("MouseButtonPress");
     case QEvent::MouseButtonRelease:
         return QStringLiteral("MouseButtonRelease");
     case QEvent::MouseMove:
         return QStringLiteral("MouseMove");
     default:
         return QStringLiteral("Unknown");
     }
 }
 
 //________________________________________________
 QString WidgetExplorer::widgetInformation(const QWidget *widget) const
 {
     QRect r(widget->geometry());
     const char *className(widget->metaObject()->className());
     QString out;
     QTextStream(&out) << widget << " (" << className << ")"
                       << " position: " << r.x() << "," << r.y() << " size: " << r.width() << "," << r.height()
                       << " hover: " << widget->testAttribute(Qt::WA_Hover);
     return out;
 }
 }