300 lines
8 KiB
C++
300 lines
8 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2008 Lubos Lunak <l.lunak@suse.cz>
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Copyright (C) 2009 Lucas Murray <lmurray@undefinedfire.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "monitor.h"
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#include <kdebug.h>
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#include <kstandarddirs.h>
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#include <qgraphicsitem.h>
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#include <qgraphicsview.h>
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#include <qgraphicsscene.h>
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#include <qgraphicssceneevent.h>
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#include <qmenu.h>
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#include <qdesktopwidget.h>
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#include <qapplication.h>
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#include <plasma/framesvg.h>
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namespace KWin
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{
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Monitor::Monitor( QWidget* parent )
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: ScreenPreviewWidget( parent )
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{
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QDesktopWidget *desktop = QApplication::desktop();
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QRect avail = desktop->availableGeometry(desktop->screenNumber(this));
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setRatio((qreal)avail.width()/(qreal)avail.height());
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for( int i = 0;
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i < 8;
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++i )
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popups[ i ] = new QMenu( this );
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scene = new QGraphicsScene( this );
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view = new QGraphicsView( scene, this );
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view->setBackgroundBrush( Qt::black );
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view->setHorizontalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
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view->setVerticalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
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view->setFocusPolicy( Qt::NoFocus );
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view->setFrameShape( QFrame::NoFrame );
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for( int i = 0;
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i < 8;
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++i )
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{
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items[ i ] = new Corner( this );
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scene->addItem( items[ i ] );
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hidden[ i ] = false;
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grp[ i ] = new QActionGroup( this );
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}
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checkSize();
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}
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void Monitor::clear()
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{
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for( int i = 0;
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i < 8;
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++i )
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{
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popups[ i ]->clear();
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setEdge( i, false );
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setEdgeHidden( i, false );
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delete grp[ i ];
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grp[ i ] = new QActionGroup( this );
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}
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}
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void Monitor::resizeEvent( QResizeEvent* e )
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{
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ScreenPreviewWidget::resizeEvent( e );
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checkSize();
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}
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void Monitor::checkSize()
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{
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QRect contentsRect = previewRect();
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int w = 151;
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int h = 115;
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view->setGeometry(contentsRect);
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scene->setSceneRect(QRect(QPoint(0,0), contentsRect.size()));
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int x2 = ( contentsRect.width() - 20 ) / 2;
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int x3 = contentsRect.width() - 20;
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int y2 = ( contentsRect.height() - 20 ) / 2;
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int y3 = contentsRect.height() - 20;
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items[ 0 ]->setRect( 0, y2, 20, 20 );
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items[ 1 ]->setRect( x3, y2, 20, 20 );
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items[ 2 ]->setRect( x2, 0, 20, 20 );
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items[ 3 ]->setRect( x2, y3, 20, 20 );
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items[ 4 ]->setRect( 0, 0, 20, 20 );
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items[ 5 ]->setRect( x3, 0, 20, 20 );
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items[ 6 ]->setRect( 0, y3, 20, 20 );
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items[ 7 ]->setRect( x3, y3, 20, 20 );
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}
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void Monitor::setEdge( int edge, bool set )
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{
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items[ edge ]->setActive( set );
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}
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bool Monitor::edge( int edge ) const
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{
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return items[ edge ]->brush() == Qt::green;
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}
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void Monitor::setEdgeHidden( int edge, bool set )
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{
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hidden[ edge ] = set;
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if( set )
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items[ edge ]->hide();
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else
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items[ edge ]->show();
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}
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bool Monitor::edgeHidden( int edge ) const
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{
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return hidden[ edge ];
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}
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void Monitor::addEdgeItem( int edge, const QString& item )
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{
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QAction* act = popups[ edge ]->addAction( item );
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act->setCheckable( true );
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popup_actions[ edge ].append( act );
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grp[ edge ]->addAction( act );
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if( popup_actions[ edge ].count() == 1 )
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{
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act->setChecked( true );
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items[ edge ]->setToolTip( item );
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}
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setEdge( edge, !popup_actions[ edge ][ 0 ]->isChecked());
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}
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void Monitor::setEdgeItemEnabled( int edge, int index, bool enabled )
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{
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popup_actions[ edge ][ index ]->setEnabled( enabled );
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}
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bool Monitor::edgeItemEnabled( int edge, int index ) const
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{
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return popup_actions[ edge ][ index ]->isEnabled();
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}
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void Monitor::selectEdgeItem( int edge, int index )
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{
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popup_actions[ edge ][ index ]->setChecked( true );
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setEdge( edge, !popup_actions[ edge ][ 0 ]->isChecked());
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items[ edge ]->setToolTip( popup_actions[ edge ][ index ]->text() );
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}
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int Monitor::selectedEdgeItem( int edge ) const
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{
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foreach( QAction* act, popup_actions[ edge ] )
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if( act->isChecked())
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return popup_actions[ edge ].indexOf( act );
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abort();
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}
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void Monitor::popup( Corner* c, QPoint pos )
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{
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for( int i = 0;
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i < 8;
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++i )
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{
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if( items[ i ] == c )
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{
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if( popup_actions[ i ].count() == 0 )
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return;
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if( QAction* a = popups[ i ]->exec( pos ))
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{
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selectEdgeItem( i, popup_actions[ i ].indexOf( a ));
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emit changed();
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emit edgeSelectionChanged( i, popup_actions[ i ].indexOf( a ));
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c->setToolTip( a->text() );
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}
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return;
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}
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}
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abort();
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}
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void Monitor::flip( Corner* c, QPoint pos )
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{
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for( int i = 0;
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i < 8;
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++i )
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{
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if( items[ i ] == c )
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{
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if( popup_actions[ i ].count() == 0 )
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setEdge( i, !edge( i ));
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else
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popup( c, pos );
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return;
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}
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}
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abort();
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}
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Monitor::Corner::Corner( Monitor* m )
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: monitor( m ),
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m_active( false ),
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m_hover( false )
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{
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button = new Plasma::FrameSvg();
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button->setImagePath("widgets/button");
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setAcceptHoverEvents(true);
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}
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Monitor::Corner::~Corner( )
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{
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delete button;
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}
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void Monitor::Corner::contextMenuEvent( QGraphicsSceneContextMenuEvent* e )
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{
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monitor->popup( this, e->screenPos());
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}
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void Monitor::Corner::mousePressEvent( QGraphicsSceneMouseEvent* e )
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{
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monitor->flip( this, e->screenPos());
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}
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void Monitor::Corner::paint( QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget )
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{
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Q_UNUSED(option)
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Q_UNUSED(widget)
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if (m_hover)
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{
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button->setElementPrefix("normal");
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qreal left, top, right, bottom;
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button->getMargins(left, top, right, bottom);
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button->setElementPrefix("active");
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qreal activeLeft, activeTop, activeRight, activeBottom;
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button->getMargins(activeLeft, activeTop, activeRight, activeBottom);
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QRectF activeRect = QRectF(QPointF(0, 0), rect().size());
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activeRect.adjust(left - activeLeft, top - activeTop,
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-(right - activeRight), -(bottom - activeBottom));
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button->setElementPrefix("active");
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button->resizeFrame(activeRect.size());
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button->paintFrame(painter, rect().topLeft()+activeRect.topLeft());
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}
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else
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{
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button->setElementPrefix(m_active?"pressed":"normal");
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button->resizeFrame(rect().size());
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button->paintFrame(painter, rect().topLeft());
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}
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if (m_active)
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{
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QPainterPath roundedRect;
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painter->setRenderHint(QPainter::Antialiasing);
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roundedRect.addRoundedRect(rect().adjusted(5,5,-5,-5), 2, 2);
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painter->fillPath(roundedRect, QApplication::palette().text());
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}
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}
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void Monitor::Corner::hoverEnterEvent( QGraphicsSceneHoverEvent * e)
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{
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m_hover = true;
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update();
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}
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void Monitor::Corner::hoverLeaveEvent( QGraphicsSceneHoverEvent * e)
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{
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m_hover = false;
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update();
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}
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void Monitor::Corner::setActive( bool active )
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{
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m_active = active;
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update();
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}
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bool Monitor::Corner::active() const
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{
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return m_active;
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}
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} // namespace
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#include "monitor.moc"
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