342 lines
15 KiB
C++
342 lines
15 KiB
C++
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/********************************************************************
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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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//own
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#include "desktopitemdelegate.h"
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// tabbox
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#include "clientitemdelegate.h"
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#include "clientmodel.h"
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#include "desktopmodel.h"
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#include "tabboxconfig.h"
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// Qt
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#include <QPainter>
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// KDE
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#include <KGlobalSettings>
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#include <KIcon>
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#include <KIconEffect>
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#include <KIconLoader>
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#include <Plasma/FrameSvg>
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#include <Plasma/Theme>
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namespace KWin
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{
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namespace TabBox
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{
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DesktopItemDelegate::DesktopItemDelegate(QObject* parent)
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: QAbstractItemDelegate(parent)
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{
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m_frame = new Plasma::FrameSvg( this );
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m_frame->setImagePath( "widgets/viewitem" );
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m_frame->setElementPrefix( "hover" );
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m_frame->setCacheAllRenderedFrames( true );
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m_frame->setEnabledBorders( Plasma::FrameSvg::AllBorders );
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m_clientDelegate = new ClientItemDelegate( this );
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}
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DesktopItemDelegate::~DesktopItemDelegate()
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{
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}
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void DesktopItemDelegate::setConfig( const KWin::TabBox::ItemLayoutConfig& config )
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{
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m_config = config;
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}
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void DesktopItemDelegate::setLayouts(QMap< QString, ItemLayoutConfig >& layouts)
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{
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m_layouts = layouts;
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}
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QSize DesktopItemDelegate::sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const
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{
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Q_UNUSED( option )
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if( !index.isValid() )
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return QSize( 0, 0 );
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qreal width = 0.0;
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qreal height = 0.0;
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for( int i = 0; i<m_config.count(); i++ )
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{
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QSizeF row = rowSize( index, i );
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width = qMax<qreal>( width, row.width() );
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height += row.height();
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}
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qreal left, top, right, bottom;
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m_frame->getMargins( left, top, right, bottom );
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// find icon elements which have a row span
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for( int i = 0; i<m_config.count(); i++ )
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{
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ItemLayoutConfigRow row = m_config.row( i );
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for( int j=0; j<row.count(); j++ )
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{
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ItemLayoutConfigRowElement element = row.element( j );
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if( element.type() == ItemLayoutConfigRowElement::ElementIcon && element.isRowSpan() )
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height = qMax<qreal>( height, element.iconSize().height() );
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}
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}
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return QSize( width + left + right, height + top + bottom );
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}
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void DesktopItemDelegate::paint( QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index ) const
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{
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if( !index.isValid() )
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return;
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if( option.state & QStyle::State_Selected )
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{
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painter->save();
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m_frame->resizeFrame( option.rect.size() );
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m_frame->paintFrame( painter, option.rect.topLeft() );
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painter->restore();
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}
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qreal left, top, right, bottom;
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m_frame->getMargins( left, top, right, bottom );
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qreal y = option.rect.top() + top;
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for( int i = 0; i< m_config.count(); i++ )
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{
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qreal rowHeight = rowSize( index, i ).height();
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qreal x = option.rect.left() + left ;
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ItemLayoutConfigRow row = m_config.row( i );
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for( int j=0; j<row.count(); j++ )
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{
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ItemLayoutConfigRowElement element = row.element( j );
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switch( element.type() )
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{
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case ItemLayoutConfigRowElement::ElementDesktopName:
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{
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x += paintTextElement( painter, option, element, x, y, rowHeight,
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index.model()->data( index, Qt::DisplayRole ).toString() );
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break;
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}
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case ItemLayoutConfigRowElement::ElementIcon:
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{
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qreal rectWidth = (qreal)option.rect.width();
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qreal maxWidth = qMin<qreal>( element.width(), rectWidth );
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if( element.isStretch() )
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maxWidth = qMax<qreal>( maxWidth, option.rect.left() + option.rect.width() - x );
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qreal iconX = x + maxWidth * 0.5 - element.iconSize().width() * 0.5;
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qreal iconY = y + rowHeight * 0.5 - element.iconSize().height() * 0.5;
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if( element.isRowSpan() )
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iconY = option.rect.top() + option.rect.height() * 0.5 - element.iconSize().height() * 0.5;
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QRectF iconRect = QRectF( iconX, iconY, element.iconSize().width(), element.iconSize().height() );
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// icon
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painter->save();
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KIcon icon( "user-desktop" );
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QPixmap iconPixmap = icon.pixmap( QSize( 64, 64 ) );
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if( m_config.isHighlightSelectedIcons() && option.state & QStyle::State_Selected )
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{
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KIconEffect *effect = KIconLoader::global()->iconEffect();
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iconPixmap = effect->apply( iconPixmap, KIconLoader::Desktop, KIconLoader::ActiveState );
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}
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if( m_config.isGrayscaleDeselectedIcons() && !(option.state & QStyle::State_Selected) )
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{
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KIconEffect *effect = KIconLoader::global()->iconEffect();
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iconPixmap = effect->apply( iconPixmap, KIconLoader::Desktop, KIconLoader::DisabledState );
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}
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QRectF sourceRect = QRectF( 0.0, 0.0, iconPixmap.width(), iconPixmap.height() );
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painter->drawPixmap( iconRect, iconPixmap, sourceRect );
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painter->restore();
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x += element.width();
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break;
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}
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case ItemLayoutConfigRowElement::ElementEmpty:
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x += element.width();
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break;
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case ItemLayoutConfigRowElement::ElementClientList:
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{
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m_clientDelegate->setConfig( m_layouts[ element.clientListLayoutName() ] );
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ClientModel* clientModel = static_cast< ClientModel* >(
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index.model()->data( index, DesktopModel::ClientModelRole ).value< void* >());
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TabBoxClientList clients = clientModel->clientList();
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qreal partX = 0.0;
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qreal partY = 0.0;
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qreal itemWidth = element.width();
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if( element.isStretch() )
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itemWidth = option.rect.x() + option.rect.width() - x;
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foreach( TabBoxClient* client, clients )
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{
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if( !client )
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continue;
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QModelIndex clientIndex = clientModel->index( client );
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QStyleOptionViewItem itemOption = option;
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itemOption.state = QStyle::State_Item;
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QSizeF itemSize = m_clientDelegate->sizeHint( itemOption, clientIndex );
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// TabBoxHandler gives the same config to the client models as used here
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// so row and column do not represent the actual used layout for this list
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switch( element.clientListLayoutMode() )
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{
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case TabBoxConfig::HorizontalLayout:
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itemOption.rect = QRect( partX + x, y, itemWidth - partX, rowHeight );
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partX += qMin( itemWidth - partX, itemSize.width() );
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break;
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case TabBoxConfig::VerticalLayout:
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itemOption.rect = QRect( x, y + partY, itemWidth, itemSize.height() );
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partY += itemSize.height();
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break;
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case TabBoxConfig::HorizontalVerticalLayout:
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// TODO: complicated
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break;
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default:
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break; // nothing
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}
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if( (partX > itemWidth) || (partX + x > option.rect.x() + option.rect.width() ) )
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{
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partX = itemWidth;
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break;
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}
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if( (partY > rowHeight) || ( y + partY > option.rect.y() + option.rect.height() ) )
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{
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partY = rowHeight;
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break;
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}
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m_clientDelegate->paint( painter, itemOption, clientIndex );
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}
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x += itemWidth;
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break;
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}
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default:
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break; // do nothing
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}
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}
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y += rowHeight;
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}
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}
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qreal DesktopItemDelegate::paintTextElement( QPainter* painter, const QStyleOptionViewItem& option,
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const ItemLayoutConfigRowElement& element,
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const qreal& x, const qreal& y, const qreal& rowHeight, QString text ) const
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{
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painter->save();
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QFont font = KGlobalSettings::generalFont();
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if( element.isSmallTextSize() )
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font = KGlobalSettings::smallestReadableFont();
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font.setBold( element.isBold() );
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font.setItalic( element.isItalic() );
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text = element.prefix() + text + element.suffix();
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painter->setFont( font );
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painter->setPen( Plasma::Theme::defaultTheme()->color( Plasma::Theme::TextColor ) );
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qreal width = element.width();
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if( element.isStretch() )
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{
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qreal left, top, right, bottom;
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m_frame->getMargins( left, top, right, bottom );
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width = option.rect.left() + option.rect.width() - x - right;
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}
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text = QFontMetricsF( font ).elidedText( text, Qt::ElideRight, width );
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QRectF rect = QRectF( x, y, width, rowHeight );
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painter->drawText( rect, element.alignment() | Qt::TextSingleLine, text );
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painter->restore();
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return width;
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}
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QSizeF DesktopItemDelegate::rowSize( const QModelIndex& index, int row ) const
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{
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ItemLayoutConfigRow currentRow = m_config.row( row );
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qreal rowWidth = 0.0;
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qreal rowHeight = 0.0;
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for( int j=0; j<currentRow.count(); j++ )
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{
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ItemLayoutConfigRowElement element = currentRow.element( j );
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switch( element.type() )
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{
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case ItemLayoutConfigRowElement::ElementDesktopName:
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{
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QSizeF size = textElementSizeHint( index, element,
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index.model()->data( index, Qt::DisplayRole ).toString() );
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rowWidth += size.width();
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rowHeight = qMax<qreal>( rowHeight, size.height() );
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break;
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}
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case ItemLayoutConfigRowElement::ElementIcon:
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rowWidth += qMax<qreal>( element.iconSize().width(), element.width() );
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if( !element.isRowSpan() )
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rowHeight = qMax<qreal>( rowHeight, element.iconSize().height() );
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break;
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case ItemLayoutConfigRowElement::ElementEmpty:
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rowWidth += element.width();
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break;
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case ItemLayoutConfigRowElement::ElementClientList:
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{
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m_clientDelegate->setConfig( m_layouts[ element.clientListLayoutName() ] );
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ClientModel* clientModel = static_cast< ClientModel* >(
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index.model()->data( index, DesktopModel::ClientModelRole ).value< void* >());
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TabBoxClientList clients = clientModel->clientList();
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qreal elementWidth = 0.0;
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qreal elementHeight = 0.0;
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foreach( TabBoxClient* client, clients )
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{
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if( !client )
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continue;
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QModelIndex clientIndex = clientModel->index( client );
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QStyleOptionViewItem itemOption = QStyleOptionViewItem();
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QSizeF itemSize = m_clientDelegate->sizeHint( itemOption, clientIndex );
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switch( element.clientListLayoutMode() )
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{
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case TabBoxConfig::HorizontalLayout:
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elementWidth += itemSize.width();
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elementHeight = qMax<qreal>( elementHeight, itemSize.height() );
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break;
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case TabBoxConfig::VerticalLayout:
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elementWidth = qMax<qreal>( elementWidth, itemSize.width() );
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elementHeight += itemSize.height();
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break;
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case TabBoxConfig::HorizontalVerticalLayout:
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// TODO: complicated
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break;
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default:
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break; // nothing
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}
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}
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if( element.isStretch() )
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rowWidth += elementWidth;
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else
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rowWidth += qMin( elementWidth, element.width() );
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rowHeight = qMax<qreal>( rowHeight, elementHeight );
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break;
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}
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default:
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break; // do nothing
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}
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}
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return QSizeF( rowWidth, rowHeight );
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}
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QSizeF DesktopItemDelegate::textElementSizeHint( const QModelIndex& index, const ItemLayoutConfigRowElement& element, QString text ) const
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{
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Q_UNUSED( index )
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QFont font = KGlobalSettings::generalFont();
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if( element.isSmallTextSize() )
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font = KGlobalSettings::smallestReadableFont();
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font.setBold( element.isBold() );
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font.setItalic( element.isItalic() );
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text = element.prefix() + text + element.suffix();
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QFontMetricsF fm( font );
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qreal width = element.width();
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if( element.isStretch() )
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width = fm.width( text );
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qreal height = fm.boundingRect( text ).height();
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return QSizeF( width, height );
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}
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} // namespace Tabbox
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} // namespace KWin
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