/*************************************************************************
* Copyright (C) 2014 by Hugo Pereira Da Costa <hugo.pereira@free.fr> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA . *
*************************************************************************/
#include "adwaitawidgetexplorer.h"
#include "adwaita.h"
#include <QTextStream>
#include <QApplication>
#include <QMouseEvent>
#include <QPainter>
namespace Adwaita
{
//________________________________________________
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() )
// {
// QTextStream( stdout ) << "Adwaita::WidgetExplorer::eventFilter - widget: " << object << " (" << object->metaObject()->className() << ")";
// QTextStream( stdout ) << " type: " << type << 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;
QTextStream( stdout )
<< "Adwaita::WidgetExplorer::eventFilter -"
<< " event: " << event << " type: " << eventType( event->type() )
<< " widget: " << widgetInformation( widget )
<< endl;
// print parent information
QWidget* parent( widget->parentWidget() );
while( parent )
{
QTextStream( stdout ) << " parent: " << widgetInformation( parent ) << endl;
parent = parent->parentWidget();
}
QTextStream( stdout ) << "" << 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()
<< " sizeHint: " << widget->sizeHint().width() << "," << widget->sizeHint().height()
<< " minimumSizeHint: " << widget->minimumSizeHint().width() << "," << widget->minimumSizeHint().height()
<< " hover: " << widget->testAttribute( Qt::WA_Hover );
return out;
}
}