622 lines
21 KiB
C++
622 lines
21 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) 2009 Martin Gräßlin <kde@martin-graesslin.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 "desktopchangeosd.h"
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#include <QTextStream>
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#include "workspace.h"
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#include <X11/extensions/shape.h>
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#include <QEasingCurve>
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#include <QPropertyAnimation>
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#include <QHash>
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#include <QGraphicsScene>
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#include <QRect>
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#include <KDE/Plasma/Theme>
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#include <KDE/Plasma/PaintUtils>
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#include <kiconloader.h>
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namespace KWin
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{
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DesktopChangeOSD::DesktopChangeOSD( Workspace* ws )
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: QGraphicsView()
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, m_wspace( ws )
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, m_scene( 0 )
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, m_active( false )
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, m_show( false )
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, m_delayTime( 0 )
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, m_textOnly( false )
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{
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setWindowFlags( Qt::X11BypassWindowManagerHint );
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setFrameStyle( QFrame::NoFrame );
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viewport()->setAutoFillBackground( false );
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setHorizontalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
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setVerticalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
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setAttribute( Qt::WA_TranslucentBackground );
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m_frame.setImagePath( "dialogs/background" );
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m_frame.setCacheAllRenderedFrames( true );
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m_frame.setEnabledBorders( Plasma::FrameSvg::AllBorders );
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m_item_frame.setImagePath( "widgets/pager" );
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m_item_frame.setCacheAllRenderedFrames( true );
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m_item_frame.setEnabledBorders( Plasma::FrameSvg::AllBorders );
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m_delayedHideTimer.setSingleShot( true );
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connect( &m_delayedHideTimer, SIGNAL(timeout()), this, SLOT(hide()) );
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m_scene = new QGraphicsScene( 0 );
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setScene( m_scene );
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reconfigure();
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m_scene->addItem( new DesktopChangeText( m_wspace ) );
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}
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DesktopChangeOSD::~DesktopChangeOSD()
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{
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delete m_scene;
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}
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void DesktopChangeOSD::reconfigure()
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{
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KSharedConfigPtr c(KGlobal::config());
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const KConfigGroup cg = c->group( "PopupInfo" );
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m_show = cg.readEntry( "ShowPopup", false );
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m_delayTime = cg.readEntry( "PopupHideDelay", 1000 );
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m_textOnly = cg.readEntry( "TextOnly", false );
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numberDesktopsChanged();
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}
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void DesktopChangeOSD::desktopChanged( int old )
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{
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if( !m_show )
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return;
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// we have to stop in case the old desktop does not exist anymore
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if( old > m_wspace->numberOfDesktops() )
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return;
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// calculate where icons have to be shown
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QPoint diff = m_wspace->desktopGridCoords( m_wspace->currentDesktop() ) - m_wspace->desktopGridCoords( old );
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QHash< int, DesktopChangeItem::Arrow > hash = QHash< int, DesktopChangeItem::Arrow>();
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int desktop = old;
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int target = m_wspace->currentDesktop();
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int x = diff.x();
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int y = diff.y();
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if( y >= 0 )
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{
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// first go in x direction, then in y
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while( desktop != target )
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{
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if( x != 0 )
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{
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if( x < 0 )
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{
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x++;
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hash.insert( desktop, DesktopChangeItem::LEFT );
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desktop = m_wspace->desktopToLeft( desktop );
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}
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else
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{
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x--;
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hash.insert( desktop, DesktopChangeItem::RIGHT );
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desktop = m_wspace->desktopToRight( desktop );
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}
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continue;
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}
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y--;
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hash.insert( desktop, DesktopChangeItem::DOWN );
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desktop = m_wspace->desktopBelow( desktop );
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}
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}
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else
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{
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// first go in y direction, then in x
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while( target != desktop )
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{
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if( y != 0 )
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{
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// only go upward
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y++;
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hash.insert( desktop, DesktopChangeItem::UP );
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desktop = m_wspace->desktopAbove( desktop );
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continue;
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}
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if( x != 0 )
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{
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if( x < 0 )
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{
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x++;
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hash.insert( desktop, DesktopChangeItem::LEFT );
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desktop = m_wspace->desktopToLeft( desktop );
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}
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else
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{
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x--;
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hash.insert( desktop, DesktopChangeItem::RIGHT );
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desktop = m_wspace->desktopToRight( desktop );
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}
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}
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}
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}
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// now we know which desktop has to show an arrow -> set the arrow for each desktop
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int numberOfArrows = qAbs( diff.x() ) + qAbs( diff.y() );
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foreach( QGraphicsItem* it, m_scene->items() )
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{
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DesktopChangeItem* item = qgraphicsitem_cast< DesktopChangeItem* >( it );
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if( item )
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{
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if( hash.contains( item->desktop() ) )
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{
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QPoint distance = m_wspace->desktopGridCoords( m_wspace->currentDesktop() )
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- m_wspace->desktopGridCoords( item->desktop() );
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int desktopDistance = numberOfArrows - ( qAbs( distance.x() ) + qAbs( distance.y() ) );
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int start = m_delayTime/numberOfArrows * desktopDistance - m_delayTime*0.15f;
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int stop = m_delayTime/numberOfArrows * (desktopDistance + 1) + m_delayTime*0.15f;
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start = qMax( start, 0 );
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item->setArrow( hash[ item->desktop() ], start, stop );
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}
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else
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{
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item->setArrow( DesktopChangeItem::NONE, 0, 0 );
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}
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if( old != m_wspace->currentDesktop() )
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{
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if( item->desktop() == m_wspace->currentDesktop() )
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item->startDesktopHighLightAnimation( m_delayTime * 0.33 );
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if( m_active && item->desktop() == old )
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item->stopDesktopHighLightAnimation();
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}
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}
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}
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if( m_active )
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{
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// for text only we need to resize
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if( m_textOnly )
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resize();
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// already active - just update and reset timer
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update();
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}
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else
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{
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m_active = true;
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resize();
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show();
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raise();
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}
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// Set a zero inputmask, effectively making clicks go "through" the popup
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// For those who impatiently wait to click on a dialog behind the it
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XShapeCombineRectangles( display(), winId(), ShapeInput, 0, 0, NULL, 0, ShapeSet, Unsorted );
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m_delayedHideTimer.start( m_delayTime );
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}
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void DesktopChangeOSD::hideEvent( QHideEvent* )
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{
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m_delayedHideTimer.stop();
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m_active = false;
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}
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void DesktopChangeOSD::drawBackground( QPainter* painter, const QRectF& rect )
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{
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painter->save();
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painter->setCompositionMode( QPainter::CompositionMode_Source );
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qreal left, top, right, bottom;
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m_frame.getMargins( left, top, right, bottom );
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m_frame.paintFrame( painter, rect.adjusted( -left, -top, right, bottom ) );
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painter->restore();
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}
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void DesktopChangeOSD::numberDesktopsChanged()
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{
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foreach( QGraphicsItem* it, m_scene->items() )
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{
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DesktopChangeItem* item = qgraphicsitem_cast<DesktopChangeItem*>(it);
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if( item )
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{
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m_scene->removeItem( item );
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}
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}
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if( !m_textOnly )
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{
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for( int i=1; i<=m_wspace->numberOfDesktops(); i++ )
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{
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DesktopChangeItem* item = new DesktopChangeItem( m_wspace, this, i );
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m_scene->addItem( item );
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}
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}
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}
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void DesktopChangeOSD::resize()
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{
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QRect screenRect = m_wspace->clientArea( ScreenArea, m_wspace->activeScreen(), m_wspace->currentDesktop() );
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QRect fullRect = m_wspace->clientArea( FullArea, m_wspace->activeScreen(), m_wspace->currentDesktop() );
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qreal left, top, right, bottom;
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m_frame.getMargins( left, top, right, bottom );
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QSize desktopGridSize = m_wspace->desktopGridSize();
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float itemWidth = fullRect.width()*0.1f;
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float itemHeight = fullRect.height()*0.1f;
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// 2 px distance between each desktop + each desktop a width of 5 % of full screen + borders
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float width = (desktopGridSize.width()-1)*2 + desktopGridSize.width()*itemWidth + left + right;
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float height = (desktopGridSize.height()-1)*2 + top + bottom;
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// bound width between ten and 33 percent of active screen
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float tempWidth = qBound( screenRect.width()*0.25f, width, screenRect.width()*0.5f );
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if( tempWidth != width )
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{
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// have to adjust the height
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width = tempWidth;
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itemWidth = (width - (desktopGridSize.width()-1)*2 - left - right)/desktopGridSize.width();
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itemHeight = itemWidth*(float)((float)fullRect.height()/(float)fullRect.width());
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}
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height += itemHeight*desktopGridSize.height();
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height += fontMetrics().height() + 4;
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// we do not increase height, but it's bound to a third of screen height
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float tempHeight = qMin( height, screenRect.height()*0.5f );
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float itemOffset = 0.0f;
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if( tempHeight != height )
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{
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// have to adjust item width
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height = tempHeight;
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itemHeight = (height - (fontMetrics().height() + 4) - top - bottom - (desktopGridSize.height()-1)*2)/
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desktopGridSize.height();
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itemOffset = itemWidth;
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itemWidth = itemHeight*(float)((float)fullRect.width()/(float)fullRect.height());
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itemOffset -= itemWidth;
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itemOffset *= (float)desktopGridSize.width()*0.5f;
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}
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// set size to the desktop name if the "pager" is not shown
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if( m_textOnly )
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{
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height = fontMetrics().height() + 4 + top + bottom;
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width = fontMetrics().boundingRect( m_wspace->desktopName( m_wspace->currentDesktop() ) ).width() +
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4 + left + right;
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}
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QRect rect = QRect( screenRect.x() + (screenRect.width()-width)/2,
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screenRect.y() + (screenRect.height()-height)/2,
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width,
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height );
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setGeometry( rect );
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m_scene->setSceneRect( 0, 0, width, height );
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m_frame.resizeFrame( QSize( width, height ) );
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setMask( m_frame.mask() );
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// resize item frame
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m_item_frame.setElementPrefix( "normal" );
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m_item_frame.resizeFrame( QSize( itemWidth, itemHeight ) );
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m_item_frame.setElementPrefix( "hover" );
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m_item_frame.resizeFrame( QSize( itemWidth, itemHeight ) );
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// reset the items
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foreach( QGraphicsItem* it, m_scene->items() )
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{
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DesktopChangeItem* item = qgraphicsitem_cast<DesktopChangeItem*>(it);
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if( item )
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{
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item->setWidth( itemWidth );
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item->setHeight( itemHeight );
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QPoint coords = m_wspace->desktopGridCoords( item->desktop() );
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item->setPos( left + itemOffset + coords.x()*(itemWidth+2),
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top + fontMetrics().height() + 4 + coords.y()*(itemHeight+4) );
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}
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DesktopChangeText* text = qgraphicsitem_cast<DesktopChangeText*>(it);
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if( text )
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{
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text->setPos( left, top );
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text->setWidth( width - left - right );
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if( m_textOnly )
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text->setHeight( fontMetrics().height() + 4 );
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else
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text->setHeight( fontMetrics().height() );
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}
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}
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}
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//*******************************
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// DesktopChangeText
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//*******************************
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DesktopChangeText::DesktopChangeText( Workspace* ws )
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: QGraphicsItem()
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, m_wspace( ws )
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, m_width( 0.0f )
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, m_height( 0.0f )
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{
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}
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DesktopChangeText::~DesktopChangeText()
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{
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}
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QRectF DesktopChangeText::boundingRect() const
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{
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return QRectF( 0, 0, m_width, m_height );
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}
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void DesktopChangeText::paint( QPainter* painter, const QStyleOptionGraphicsItem* , QWidget* )
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{
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painter->setPen( Plasma::Theme::defaultTheme()->color( Plasma::Theme::TextColor ) );
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painter->drawText( boundingRect(), Qt::AlignCenter | Qt:: AlignVCenter,
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m_wspace->desktopName( m_wspace->currentDesktop() ) );
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}
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//*******************************
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// DesktopChangeItem
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//*******************************
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DesktopChangeItem::DesktopChangeItem( Workspace* ws, DesktopChangeOSD* parent, int desktop )
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: QGraphicsItem()
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, m_wspace( ws )
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, m_parent( parent )
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, m_desktop( desktop )
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, m_width( 0.0f )
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, m_height( 0.0f )
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, m_arrow( NONE )
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, m_arrowShown( false )
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, m_fadeInArrow( false )
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, m_fadeInHighLight( false )
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, m_arrowValue( 0.0 )
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, m_highLightValue( 0.0 )
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{
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m_delayed_show_arrow_timer.setSingleShot( true );
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m_delayed_hide_arrow_timer.setSingleShot( true );
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connect( &m_delayed_show_arrow_timer, SIGNAL(timeout()), this, SLOT(showArrow()));
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connect( &m_delayed_hide_arrow_timer, SIGNAL(timeout()), this, SLOT(hideArrow()));
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}
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DesktopChangeItem::~DesktopChangeItem()
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{
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}
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QRectF DesktopChangeItem::boundingRect() const
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{
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return QRectF( 0, 0, m_width, m_height );
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}
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void DesktopChangeItem::setArrow( Arrow arrow, int start_delay, int hide_delay )
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{
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// stop timers
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m_delayed_show_arrow_timer.stop();
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m_delayed_hide_arrow_timer.stop();
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QPropertyAnimation *arrowAnimation = m_arrowAnimation.data();
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if( arrowAnimation )
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{
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arrowAnimation->stop();
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m_arrowAnimation.clear();
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}
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m_arrowShown = false;
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m_arrow = arrow;
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if( m_arrow != NONE )
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{
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m_delayed_show_arrow_timer.start( start_delay );
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m_delayed_hide_arrow_timer.start( hide_delay );
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}
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}
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qreal DesktopChangeItem::arrowValue() const
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{
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qCritical() << __func__ << m_arrowValue;
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return m_arrowValue;
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}
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qreal DesktopChangeItem::highLightValue() const
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{
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return m_highLightValue;
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}
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void DesktopChangeItem::setArrowValue( qreal value )
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{
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m_arrowValue = value;
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update();
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}
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void DesktopChangeItem::setHighLightValue( qreal value )
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{
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m_highLightValue = value;
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update();
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}
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void DesktopChangeItem::showArrow()
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{
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m_arrowShown = true;
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QPropertyAnimation *arrowAnimation = m_arrowAnimation.data();
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if( !arrowAnimation )
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{
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arrowAnimation = new QPropertyAnimation( this, "arrowValue" );
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arrowAnimation->setDuration( m_parent->getDelayTime()*0.15f );
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arrowAnimation->setStartValue( 0.0 );
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arrowAnimation->setEndValue( 1.0 );
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m_arrowAnimation = arrowAnimation;
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}
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m_fadeInArrow = true;
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arrowAnimation->setEasingCurve( QEasingCurve::InQuad );
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arrowAnimation->setDirection( QAbstractAnimation::Forward );
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arrowAnimation->start();
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}
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void DesktopChangeItem::hideArrow()
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{
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m_fadeInArrow = false;
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QPropertyAnimation *arrowAnimation = m_arrowAnimation.data();
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if( arrowAnimation )
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{
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arrowAnimation->setEasingCurve( QEasingCurve::OutQuad );
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arrowAnimation->setDirection( QAbstractAnimation::Backward );
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arrowAnimation->start( QAbstractAnimation::DeleteWhenStopped );
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connect( arrowAnimation, SIGNAL(finished()), this, SLOT(arrowAnimationFinished()) );
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}
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}
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void DesktopChangeItem::startDesktopHighLightAnimation( int time )
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{
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QPropertyAnimation *highLightAnimation = m_highLightAnimation.data();
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if( !highLightAnimation )
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{
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highLightAnimation = new QPropertyAnimation( this, "highLightValue" );
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highLightAnimation->setDuration( time );
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highLightAnimation->setStartValue( 0.0 );
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highLightAnimation->setEndValue( 1.0 );
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m_highLightAnimation = highLightAnimation;
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}
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m_fadeInHighLight = true;
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highLightAnimation->setEasingCurve( QEasingCurve::InQuad );
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highLightAnimation->setDirection( QAbstractAnimation::Forward );
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highLightAnimation->start();
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}
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void DesktopChangeItem::stopDesktopHighLightAnimation()
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{
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m_fadeInHighLight = false;
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QPropertyAnimation *highLightAnimation = m_highLightAnimation.data();
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if(highLightAnimation)
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{
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highLightAnimation->setEasingCurve( QEasingCurve::OutQuad );
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highLightAnimation->setDirection( QAbstractAnimation::Backward );
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highLightAnimation->start( QAbstractAnimation::DeleteWhenStopped );
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}
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}
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void DesktopChangeItem::arrowAnimationFinished()
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{
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if( !m_fadeInArrow )
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m_arrowShown = false;
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}
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void DesktopChangeItem::paint( QPainter* painter, const QStyleOptionGraphicsItem* , QWidget* )
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{
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if( m_wspace->currentDesktop() == m_desktop || (!m_highLightAnimation.isNull() &&
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m_highLightAnimation.data()->state() == QAbstractAnimation::Running) )
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{
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|
qreal left, top, right, bottom;
|
|
m_parent->itemFrame()->getMargins( left, top, right, bottom );
|
|
if( !m_highLightAnimation.isNull() &&
|
|
m_highLightAnimation.data()->state() == QAbstractAnimation::Running )
|
|
{
|
|
// there is an animation - so we use transition from normal to active or vice versa
|
|
if( m_fadeInHighLight )
|
|
{
|
|
m_parent->itemFrame()->setElementPrefix( "normal" );
|
|
QPixmap normal = m_parent->itemFrame()->framePixmap();
|
|
m_parent->itemFrame()->setElementPrefix( "hover" );
|
|
QPixmap result = Plasma::PaintUtils::transition( normal,
|
|
m_parent->itemFrame()->framePixmap(), m_highLightValue );
|
|
painter->drawPixmap( boundingRect().toRect(), result);
|
|
}
|
|
else
|
|
{
|
|
m_parent->itemFrame()->setElementPrefix( "hover" );
|
|
QPixmap normal = m_parent->itemFrame()->framePixmap();
|
|
m_parent->itemFrame()->setElementPrefix( "normal" );
|
|
QPixmap result = Plasma::PaintUtils::transition( normal,
|
|
m_parent->itemFrame()->framePixmap(), 1.0 - m_highLightValue );
|
|
painter->drawPixmap( boundingRect().toRect(), result);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// no animation - just render the active frame
|
|
m_parent->itemFrame()->setElementPrefix( "hover" );
|
|
m_parent->itemFrame()->paintFrame( painter, boundingRect() );
|
|
}
|
|
QColor rectColor = Plasma::Theme::defaultTheme()->color( Plasma::Theme::TextColor );
|
|
rectColor.setAlphaF( 0.6 * m_highLightValue );
|
|
QBrush rectBrush = QBrush( rectColor );
|
|
painter->fillRect( boundingRect().adjusted( left, top, -right, -bottom ), rectBrush );
|
|
}
|
|
else
|
|
{
|
|
m_parent->itemFrame()->setElementPrefix( "normal" );
|
|
m_parent->itemFrame()->paintFrame( painter, boundingRect() );
|
|
}
|
|
|
|
if( !m_arrowShown )
|
|
return;
|
|
// paint the arrow
|
|
QPixmap icon;
|
|
int iconWidth = 32;
|
|
qreal maxsize = qMin( boundingRect().width(), boundingRect().height() );
|
|
if( maxsize > 128.0 )
|
|
iconWidth = 128;
|
|
else if( maxsize > 64.0 )
|
|
iconWidth = 64.0;
|
|
else if( maxsize > 32.0 )
|
|
iconWidth = 32.0;
|
|
else
|
|
iconWidth = 16.0;
|
|
QRect iconRect = QRect( boundingRect().x() + boundingRect().width()/2 - iconWidth/2,
|
|
boundingRect().y() + boundingRect().height()/2 - iconWidth/2,
|
|
iconWidth, iconWidth );
|
|
switch( m_arrow )
|
|
{
|
|
case UP:
|
|
icon = KIconLoader::global()->loadIcon( "go-up", KIconLoader::Desktop, iconWidth );
|
|
break;
|
|
case DOWN:
|
|
icon = KIconLoader::global()->loadIcon( "go-down", KIconLoader::Desktop, iconWidth );
|
|
break;
|
|
case LEFT:
|
|
icon = KIconLoader::global()->loadIcon( "go-previous", KIconLoader::Desktop, iconWidth );
|
|
break;
|
|
case RIGHT:
|
|
icon = KIconLoader::global()->loadIcon( "go-next", KIconLoader::Desktop, iconWidth );
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if( m_arrow != NONE )
|
|
{
|
|
if( !m_arrowAnimation.isNull() &&
|
|
m_arrowAnimation.data()->state() == QAbstractAnimation::Running &&
|
|
!qFuzzyCompare(m_arrowValue, qreal(1.0)) )
|
|
{
|
|
QPixmap temp( icon.size() );
|
|
temp.fill( Qt::transparent );
|
|
|
|
QPainter p( &temp );
|
|
p.setCompositionMode( QPainter::CompositionMode_Source );
|
|
p.drawPixmap( 0, 0, icon );
|
|
p.setCompositionMode( QPainter::CompositionMode_DestinationIn );
|
|
p.fillRect( temp.rect(), QColor( 0, 0, 0, 255*m_arrowValue ) );
|
|
p.end();
|
|
|
|
icon = temp;
|
|
}
|
|
painter->drawPixmap( iconRect, icon );
|
|
}
|
|
}
|
|
}
|
|
|
|
#include "desktopchangeosd.moc"
|