kwin/clients/tabstrip/tabstripbutton.cpp

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/********************************************************************
Tabstrip KWin window decoration
This file is part of the KDE project.
Copyright (C) 2009 Jorge Mata <matamax123@gmail.com>
Copyright (C) 2009 Lucas Murray <lmurray@undefinedfire.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include <kcommondecoration.h>
#include "tabstripbutton.h"
#include "tabstripdecoration.h"
#include "tabstripfactory.h"
#include <KLocale>
#include <QPainter>
#include <QPalette>
#include <QPixmap>
#include <QRect>
TabstripButton::TabstripButton( ButtonType type, TabstripDecoration *parent, QString tip )
: KCommonDecorationButton( type, parent ), SIZE( 16 )
{
setAutoFillBackground( false );
setFixedSize( SIZE, SIZE );
setCursor( Qt::ArrowCursor );
client = parent;
btype = type;
setToolTip( tip );
active_item = true;
hovering = false;
}
TabstripButton::~TabstripButton()
{
}
void TabstripButton::reset( unsigned long )
{
update();
}
QSize TabstripButton::sizeHint() const
{
return QSize( SIZE, SIZE );
}
void TabstripButton::paintEvent( QPaintEvent * )
{
QPainter p( this );
const bool active = client->isActive() && active_item;
// Icon geometry
QRect geom = QRect( 3, 3, width() - 6, height() - 6 );
// Determine painting colors
QColor bgColor = client->options()->color( KDecoration::ColorTitleBar, active );
QColor textColor = client->options()->color( KDecoration::ColorFont, active );
if( hovering )
{ // Invert if the mouse cursor is hovering over the button
textColor.setRed( 255 - textColor.red() );
textColor.setGreen( 255 - textColor.green() );
textColor.setBlue( 255 - textColor.blue() );
}
// Slight optimization as we are drawing solid straight lines
p.setRenderHint( QPainter::Antialiasing, false );
// Background
p.fillRect( 0, 0, width(), height(), bgColor );
//p.fillRect( 0, 0, width(), height(), QColor( 255, 0, 0 ));
// Paint buttons with the text color
p.setPen( textColor );
switch( btype )
{
case HelpButton:
{
QFont font;
font.setBold( true );
p.setFont( font );
p.drawText( geom.adjusted( 0, 1, 0, 0), Qt::AlignVCenter | Qt::AlignHCenter, "?" );
}
break;
case MaxButton:
switch( client->maximizeMode() )
{
case TabstripDecoration::MaximizeRestore:
case TabstripDecoration::MaximizeVertical:
case TabstripDecoration::MaximizeHorizontal:
// TL
p.drawLine( geom.x() + 3, geom.y(),
geom.x(), geom.y() );
p.drawLine( geom.x(), geom.y() + 3,
geom.x(), geom.y() );
p.drawLine( geom.x() + 3, geom.y() + 1,
geom.x(), geom.y() + 1 );
p.drawLine( geom.x() + 1, geom.y() + 3,
geom.x(), geom.y() + 1 );
// TR
p.drawLine( geom.x() + geom.width() - 3, geom.y(),
geom.x() + geom.width(), geom.y() );
p.drawLine( geom.x() + geom.width(), geom.y() + 3,
geom.x() + geom.width(), geom.y() );
p.drawLine( geom.x() + geom.width() - 3, geom.y() + 1,
geom.x() + geom.width(), geom.y() + 1 );
p.drawLine( geom.x() + geom.width() - 1, geom.y() + 3,
geom.x() + geom.width() - 1, geom.y() );
// BL
p.drawLine( geom.x() + 3, geom.y() + geom.height(),
geom.x(), geom.y() + geom.height() );
p.drawLine( geom.x(), geom.y() + geom.height() - 3,
geom.x(), geom.y() + geom.height() );
p.drawLine( geom.x() + 3, geom.y() + geom.height() - 1,
geom.x(), geom.y() + geom.height() - 1 );
p.drawLine( geom.x() + 1, geom.y() + geom.height() - 3,
geom.x() + 1, geom.y() + geom.height() );
// BR
p.drawLine( geom.x() + geom.width() - 3, geom.y() + geom.height(),
geom.x() + geom.width(), geom.y() + geom.height() );
p.drawLine( geom.x() + geom.width(), geom.y() + geom.height() - 3,
geom.x() + geom.width(), geom.y() + geom.height() );
p.drawLine( geom.x() + geom.width() - 3, geom.y() + geom.height() - 1,
geom.x() + geom.width(), geom.y() + geom.height() - 1 );
p.drawLine( geom.x() + geom.width() - 1, geom.y() + geom.height() - 3,
geom.x() + geom.width() - 1, geom.y() + geom.height() );
break;
case TabstripDecoration::MaximizeFull:
// TL
p.drawLine( geom.x() + 2, geom.y(),
geom.x() + 2, geom.y() + 2 );
p.drawLine( geom.x(), geom.y() + 2,
geom.x() + 2, geom.y() + 2 );
p.drawLine( geom.x() + 3, geom.y(),
geom.x() + 3, geom.y() + 3 );
p.drawLine( geom.x(), geom.y() + 3,
geom.x() + 3, geom.y() + 3 );
// TR
p.drawLine( geom.x() + geom.width() - 2, geom.y(),
geom.x() + geom.width() - 2, geom.y() + 2 );
p.drawLine( geom.x() + geom.width(), geom.y() + 2,
geom.x() + geom.width() - 2, geom.y() + 2 );
p.drawLine( geom.x() + geom.width() - 3, geom.y(),
geom.x() + geom.width() - 3, geom.y() + 3 );
p.drawLine( geom.x() + geom.width(), geom.y() + 3,
geom.x() + geom.width() - 3, geom.y() + 3 );
// BL
p.drawLine( geom.x() + 2, geom.y() + geom.height(),
geom.x() + 2, geom.y() + geom.height() - 2 );
p.drawLine( geom.x(), geom.y() + geom.height() - 2,
geom.x() + 2, geom.y() + geom.height() - 2 );
p.drawLine( geom.x() + 3, geom.y() + geom.height(),
geom.x() + 3, geom.y() + geom.height() - 3 );
p.drawLine( geom.x(), geom.y() + geom.height() - 3,
geom.x() + 3, geom.y() + geom.height() - 3 );
// BR
p.drawLine( geom.x() + geom.width() - 2, geom.y() + geom.height(),
geom.x() + geom.width() - 2, geom.y() + geom.height() - 2 );
p.drawLine( geom.x() + geom.width(), geom.y() + geom.height() - 2,
geom.x() + geom.width() - 2, geom.y() + geom.height() - 2 );
p.drawLine( geom.x() + geom.width() - 3, geom.y() + geom.height(),
geom.x() + geom.width() - 3, geom.y() + geom.height() - 3 );
p.drawLine( geom.x() + geom.width(), geom.y() + geom.height() - 3,
geom.x() + geom.width() - 3, geom.y() + geom.height() - 3 );
break;
}
break;
case MinButton:
// B
p.drawLine( geom.x(), geom.y() + geom.height(),
geom.x() + geom.width(), geom.y() + geom.height() );
p.drawLine( geom.x(), geom.y() + geom.height() - 1,
geom.x() + geom.width(), geom.y() + geom.height() - 1 );
// L
p.drawLine( geom.x(), geom.y() + geom.height() - 3,
geom.x(), geom.y() + geom.height() );
p.drawLine( geom.x() + 1, geom.y() + geom.height() - 3,
geom.x() + 1, geom.y() + geom.height() );
// R
p.drawLine( geom.x() + geom.width(), geom.y() + geom.height() - 3,
geom.x() + geom.width(), geom.y() + geom.height() );
p.drawLine( geom.x() + geom.width() - 1, geom.y() + geom.height() - 3,
geom.x() + geom.width() - 1, geom.y() + geom.height() );
break;
case CloseButton:
case ItemCloseButton:
// TL-BR
p.drawLine( geom.x() + 1, geom.y() + 1,
geom.x() + geom.width() - 1, geom.y() + geom.height() - 1 );
p.drawLine( geom.x() + 2, geom.y() + 1,
geom.x() + geom.width() - 1, geom.y() + geom.height() - 2 );
p.drawLine( geom.x() + 1, geom.y() + 2,
geom.x() + geom.width() - 2, geom.y() + geom.height() - 1 );
// TR-BL
p.drawLine( geom.x() + 1, geom.y() + geom.height() - 1,
geom.x() + geom.width() - 1, geom.y() + 1 );
p.drawLine( geom.x() + 2, geom.y() + geom.height() - 1,
geom.x() + geom.width() - 1, geom.y() + 2 );
p.drawLine( geom.x() + 1, geom.y() + geom.height() - 2,
geom.x() + geom.width() - 2, geom.y() + 1 );
break;
case MenuButton:
if( client->clientGroupItems().count() > 1 || !TabstripFactory::showIcon() )
{
p.drawRect( geom.x(), geom.y() + geom.height() / 2 - 5,
1, 1 );
p.drawRect( geom.x(), geom.y() + geom.height() / 2 - 1,
1, 1 );
p.drawRect( geom.x(), geom.y() + geom.height() / 2 + 3,
1, 1 );
p.drawRect( geom.x() + 4, geom.y() + geom.height() / 2 - 5,
geom.width() - 5, 1 );
p.drawRect( geom.x() + 4, geom.y() + geom.height() / 2 - 1,
geom.width() - 5, 1 );
p.drawRect( geom.x() + 4, geom.y() + geom.height() / 2 + 3,
geom.width() - 5, 1 );
}
else
p.drawPixmap( 0, 0, client->icon().pixmap( SIZE ));
break;
case OnAllDesktopsButton:
{
if( isChecked() )
p.fillRect( geom.x() + geom.width() / 2 - 1, geom.y() + geom.height() / 2 - 1,
3, 3, textColor );
else
{
p.fillRect( geom.x() + geom.width() / 2 - 4, geom.y() + geom.height() / 2 - 4,
3, 3, textColor );
p.fillRect( geom.x() + geom.width() / 2 - 4, geom.y() + geom.height() / 2 + 2,
3, 3, textColor );
p.fillRect( geom.x() + geom.width() / 2 + 2, geom.y() + geom.height() / 2 - 4,
3, 3, textColor );
p.fillRect( geom.x() + geom.width() / 2 + 2, geom.y() + geom.height() / 2 + 2,
3, 3, textColor );
}
}
break;
case AboveButton:
{
int o = -2;
if( isChecked() )
{
o = -4;
p.drawRect( geom.x() + geom.width() / 2 - 4, geom.y() + geom.height() / 2 + 3,
8, 1 );
}
p.drawPoint( geom.x() + geom.width() / 2, geom.y() + geom.height() / 2 + o );
p.drawLine( geom.x() + geom.width() / 2 - 1, geom.y() + geom.height() / 2 + o + 1,
geom.x() + geom.width() / 2 + 1, geom.y() + geom.height() / 2 + o + 1 );
p.drawLine( geom.x() + geom.width() / 2 - 2, geom.y() + geom.height() / 2 + o + 2,
geom.x() + geom.width() / 2 + 2, geom.y() + geom.height() / 2 + o + 2 );
p.drawLine( geom.x() + geom.width() / 2 - 3, geom.y() + geom.height() / 2 + o + 3,
geom.x() + geom.width() / 2 + 3, geom.y() + geom.height() / 2 + o + 3 );
p.drawLine( geom.x() + geom.width() / 2 - 4, geom.y() + geom.height() / 2 + o + 4,
geom.x() + geom.width() / 2 + 4, geom.y() + geom.height() / 2 + o + 4 );
}
break;
case BelowButton:
{
int o = 1;
if( isChecked() )
{
o = 3;
p.drawRect( geom.x() + geom.width() / 2 - 4, geom.y() + geom.height() / 2 - 5,
8, 1 );
}
p.drawPoint( geom.x() + geom.width() / 2, geom.y() + geom.height() / 2 + o );
p.drawLine( geom.x() + geom.width() / 2 - 1, geom.y() + geom.height() / 2 + o - 1,
geom.x() + geom.width() / 2 + 1, geom.y() + geom.height() / 2 + o - 1 );
p.drawLine( geom.x() + geom.width() / 2 - 2, geom.y() + geom.height() / 2 + o - 2,
geom.x() + geom.width() / 2 + 2, geom.y() + geom.height() / 2 + o - 2 );
p.drawLine( geom.x() + geom.width() / 2 - 3, geom.y() + geom.height() / 2 + o - 3,
geom.x() + geom.width() / 2 + 3, geom.y() + geom.height() / 2 + o - 3 );
p.drawLine( geom.x() + geom.width() / 2 - 4, geom.y() + geom.height() / 2 + o - 4,
geom.x() + geom.width() / 2 + 4, geom.y() + geom.height() / 2 + o - 4 );
}
break;
case ShadeButton:
p.drawLine( geom.x(), geom.y(),
geom.x() + geom.width(), geom.y() );
p.drawLine( geom.x(), geom.y() + 1,
geom.x() + geom.width(), geom.y() + 1 );
break;
case NumButtons:
default:
break;
};
}
void TabstripButton::enterEvent( QEvent *e )
{
hovering = true;
repaint();
KCommonDecorationButton::enterEvent( e );
}
void TabstripButton::leaveEvent( QEvent *e )
{
hovering = false;
repaint();
KCommonDecorationButton::leaveEvent( e );
}