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Viewing changes to kstyles/oxygen/debug/oxygenwidgetexplorer.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Michał Zając
  • Date: 2011-07-09 08:31:15 UTC
  • Revision ID: james.westby@ubuntu.com-20110709083115-ohyxn6z93mily9fc
Tags: upstream-4.6.90
Import upstream version 4.6.90

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kstyles/oxygen/debug/oxygenwidgetexplorer.cpp
 
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//////////////////////////////////////////////////////////////////////////////
 
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// oxygenwidgetexplorer.cpp
 
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// print widget's and parent's information on mouse click
 
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// -------------------
 
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//
 
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// Copyright (c) 2010 Hugo Pereira Da Costa <hugo@oxygen-icons.org>
 
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//
 
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// Permission is hereby granted, free of charge, to any person obtaining a copy
 
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// of this software and associated documentation files (the "Software"), to
 
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// deal in the Software without restriction, including without limitation the
 
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 
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// sell copies of the Software, and to permit persons to whom the Software is
 
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// furnished to do so, subject to the following conditions:
 
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//
 
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// The above copyright notice and this permission notice shall be included in
 
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// all copies or substantial portions of the Software.
 
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//
 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 
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// IN THE SOFTWARE.
 
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//////////////////////////////////////////////////////////////////////////////
 
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#include "oxygenwidgetexplorer.h"
 
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#include "oxygenwidgetexplorer.moc"
 
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#include <QtCore/QTextStream>
 
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#include <QtGui/QApplication>
 
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#include <QtGui/QMouseEvent>
 
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#include <QtGui/QPainter>
 
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namespace Oxygen
 
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{
 
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    //________________________________________________
 
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    WidgetExplorer::WidgetExplorer( QObject* parent ):
 
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        QObject( parent ),
 
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        _enabled( false ),
 
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        _drawWidgetRects( false )
 
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    {
 
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        _eventTypes.insert( QEvent::Enter, "Enter" );
 
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        _eventTypes.insert( QEvent::Leave, "Leave" );
 
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        _eventTypes.insert( QEvent::HoverMove, "HoverMove" );
 
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        _eventTypes.insert( QEvent::HoverEnter, "HoverEnter" );
 
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        _eventTypes.insert( QEvent::HoverLeave, "HoverLeave" );
 
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        _eventTypes.insert( QEvent::MouseMove, "MouseMove" );
 
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        _eventTypes.insert( QEvent::MouseButtonPress, "MouseButtonPress" );
 
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        _eventTypes.insert( QEvent::MouseButtonRelease, "MouseButtonRelease" );
 
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        _eventTypes.insert( QEvent::FocusIn, "FocusIn" );
 
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        _eventTypes.insert( QEvent::FocusOut, "FocusOut" );
 
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        // _eventTypes.insert( QEvent::Paint, "Paint" );
 
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    }
 
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    //________________________________________________
 
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    void WidgetExplorer::setEnabled( bool value )
 
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    {
 
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        if( value == _enabled ) return;
 
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        _enabled = value;
 
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        qApp->removeEventFilter( this );
 
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        if( _enabled )  qApp->installEventFilter( this );
 
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    }
 
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    //________________________________________________
 
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    bool WidgetExplorer::eventFilter( QObject* object, QEvent* event )
 
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    {
 
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        if( object->isWidgetType() )
 
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        {
 
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            QString type( _eventTypes[event->type()] );
 
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            if( !type.isEmpty() )
 
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            {
 
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                QTextStream( stdout ) << "Oxygen::WidgetExplorer::eventFilter - widget: " << object << " (" << object->metaObject()->className() << ")";
 
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                QTextStream( stdout ) << " type: " << type  << endl;
 
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            }
 
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        }
 
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        switch( event->type() )
 
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        {
 
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            case QEvent::Paint:
 
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            if( _drawWidgetRects )
 
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            {
 
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                QWidget* widget( qobject_cast<QWidget*>( object ) );
 
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                if( !widget ) return false;
 
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                QPainter painter( widget );
 
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                painter.setRenderHints(QPainter::Antialiasing);
 
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                painter.setBrush( Qt::NoBrush );
 
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                painter.setPen( Qt::red );
 
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                painter.drawRect( widget->rect() );
 
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                painter.end();
 
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            }
 
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            break;
 
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            case QEvent::MouseButtonPress:
 
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            {
 
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                // cast event and check button
 
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                QMouseEvent* mouseEvent( static_cast<QMouseEvent*>( event ) );
 
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                if( mouseEvent->button() != Qt::LeftButton ) break;
 
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                // case widget and check (should not be necessary)
 
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                QWidget* widget( qobject_cast<QWidget*>(object) );
 
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                if( !widget ) return false;
 
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                QTextStream( stdout )
 
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                    << "Oxygen::WidgetExplorer::eventFilter -"
 
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                    << " event: " << event << " type: " << eventType( event->type() )
 
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                    << " widget: " << widgetInformation( widget )
 
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                    << endl;
 
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                // print parent information
 
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                QWidget* parent( widget->parentWidget() );
 
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                while( parent )
 
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                {
 
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                    QTextStream( stdout ) << "    parent: " << widgetInformation( parent ) << endl;
 
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                    parent = parent->parentWidget();
 
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                }
 
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                QTextStream( stdout ) << "" << endl;
 
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            }
 
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            break;
 
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            default: break;
 
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        }
 
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        // always return false to go on with normal chain
 
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        return false;
 
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    }
 
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    //________________________________________________
 
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    QString WidgetExplorer::eventType( const QEvent::Type& type ) const
 
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    {
 
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        switch( type )
 
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        {
 
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            case QEvent::MouseButtonPress: return "MouseButtonPress";
 
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            case QEvent::MouseButtonRelease: return "MouseButtonRelease";
 
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            case QEvent::MouseMove: return "MouseMove";
 
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            default: return "Unknown";
 
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        }
 
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    }
 
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    //________________________________________________
 
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    QString WidgetExplorer::widgetInformation( const QWidget* widget ) const
 
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    {
 
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        QRect r( widget->geometry() );
 
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        QString className( widget->metaObject()->className() );
 
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        QString out;
 
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        QTextStream( &out ) << widget << " (" << className << ")"
 
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            << " position: " << r.x() << "," << r.y()
 
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            << " size: " << r.width() << "," << r.height()
 
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            << " hover: " << widget->testAttribute( Qt::WA_Hover );
 
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        return out;
 
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    }
 
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}