295 lines
12 KiB
C++
295 lines
12 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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// own
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#include "clientitemdelegate.h"
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// tabbox
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#include "clientmodel.h"
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#include "itemlayoutconfig.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 <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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ClientItemDelegate::ClientItemDelegate( QObject* parent )
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: QAbstractItemDelegate( parent )
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, m_showSelection( true )
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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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}
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ClientItemDelegate::~ClientItemDelegate()
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{
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}
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void ClientItemDelegate::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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QSize ClientItemDelegate::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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// check for empty client list
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if( index.model()->data( index, ClientModel::EmptyRole ).toBool() )
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{
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QFont font = KGlobalSettings::generalFont();
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font.setBold( true );
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font.setPointSize( font.pointSize() + 4 );
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QFontMetrics fm( font );
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QString text = index.model()->data( index, Qt::DisplayRole ).toString();
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qreal width = 20.0 + fm.width( text );
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qreal height = fm.boundingRect( text ).height();
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return QSize( width, height );
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}
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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 ClientItemDelegate::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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// check for empty client list
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if( index.model()->data( index, ClientModel::EmptyRole ).toBool() )
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{
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painter->save();
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QFont font = KGlobalSettings::generalFont();
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font.setBold( true );
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font.setPointSize( font.pointSize() + 4 );
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painter->setFont( font );
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painter->drawText( option.rect, Qt::AlignCenter | Qt::TextSingleLine,
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index.model()->data( index, Qt::DisplayRole ).toString() );
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painter->restore();
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return;
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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::ElementClientName:
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x += paintTextElement( painter, option, index, element, x, y, rowHeight,
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index.model()->data( index, ClientModel::CaptionRole ).toString() );
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break;
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case ItemLayoutConfigRowElement::ElementDesktopName:
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{
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if( tabBox->config().tabBoxMode() == TabBoxConfig::ClientTabBox &&
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(tabBox->config().clientListMode() == TabBoxConfig::CurrentDesktopClientList) ||
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(tabBox->config().clientListMode() == TabBoxConfig::CurrentDesktopApplicationList))
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break;
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x += paintTextElement( painter, option, index, element, x, y, rowHeight,
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index.model()->data( index, ClientModel::DesktopNameRole ).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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TabBoxClient* client = static_cast< TabBoxClient* >(index.model()->data(
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index, ClientModel::ClientRole ).value<void *>() );
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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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QPixmap icon = client->icon();
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if( !icon.isNull() )
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{
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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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icon = effect->apply( icon, 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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icon = effect->apply( icon, KIconLoader::Desktop, KIconLoader::DisabledState );
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}
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QRectF sourceRect = QRectF( 0.0, 0.0, icon.width(), icon.height() );
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painter->drawPixmap( iconRect, icon, sourceRect );
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}
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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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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 ClientItemDelegate::paintTextElement( QPainter* painter, const QStyleOptionViewItem& option,
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const QModelIndex& index, 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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if( index.model()->data( index, ClientModel::MinimizedRole ).toBool() )
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{
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text = element.prefixMinimized() + text + element.suffixMinimized();
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if( element.isItalicMinimized() )
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font.setItalic( true );
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}
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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 ClientItemDelegate::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::ElementClientName:
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{
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QSizeF size = textElementSizeHint( index, element,
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index.model()->data( index, ClientModel::CaptionRole ).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::ElementDesktopName:
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{
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QSizeF size = textElementSizeHint( index, element,
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index.model()->data( index, ClientModel::DesktopNameRole ).toString() );
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if( tabBox->config().tabBoxMode() == TabBoxConfig::ClientTabBox &&
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(tabBox->config().clientListMode() == TabBoxConfig::CurrentDesktopClientList) ||
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(tabBox->config().clientListMode() == TabBoxConfig::CurrentDesktopApplicationList))
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size = QSizeF( 0, 0 );
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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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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 ClientItemDelegate::textElementSizeHint( const QModelIndex& index, const ItemLayoutConfigRowElement& element, QString text ) const
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{
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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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if( index.model()->data( index, ClientModel::MinimizedRole ).toBool() )
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{
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text = element.prefixMinimized() + text + element.suffixMinimized();
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if( element.isItalicMinimized() )
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font.setItalic( true );
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}
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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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