//____________________________________________________________________________________
Button::Button(KDecoration2::DecorationButtonType type, Decoration* decoration, QObject* parent):
KDecoration2::DecorationButton(type, decoration, parent)
, m_animation( new QPropertyAnimation( this ) )
, m_opacity(0)
{
// setup animation
m_animation->setStartValue( 0 );
m_animation->setEndValue( 1.0 );
m_animation->setTargetObject( this );
m_animation->setPropertyName( "opacity" );
m_animation->setEasingCurve( QEasingCurve::InOutQuad );
// setup default geometry
const int height = decoration->buttonHeight();
setGeometry(QRect(0, 0, height, height));
setIconSize(QSize( height, height ));
reconfigure();
// setup connections
if( isMenuButton() )
{ connect(decoration->client().data(), SIGNAL(iconChanged(QIcon)), this, SLOT(update())); }
connect(decoration->settings().data(), &KDecoration2::DecorationSettings::reconfigured, this, &Button::reconfigure);
connect( this, &KDecoration2::DecorationButton::hoveredChanged, this, &Button::updateAnimationState );
}
QSize KMultiTabBarButton::sizeHint() const
{
constPolish();
int w = 0, h = 0;
// calculate contents size...
#ifndef QT_NO_ICONSET
if ( iconSet() && !iconSet()->isNull() ) {
int iw = iconSet()->pixmap( QIconSet::Small, QIconSet::Normal ).width() + 4;
int ih = iconSet()->pixmap( QIconSet::Small, QIconSet::Normal ).height();
w += iw;
h = QMAX( h, ih );
}
#endif
if ( isMenuButton() )
w += style().pixelMetric(QStyle::PM_MenuButtonIndicator, this);
if ( pixmap() ) {
QPixmap *pm = (QPixmap *)pixmap();
w += pm->width();
h += pm->height();
} else {
QString s( text() );
bool empty = s.isEmpty();
if ( empty )
s = QString::fromLatin1("XXXX");
QFontMetrics fm = fontMetrics();
QSize sz = fm.size( ShowPrefix, s );
if(!empty || !w)
w += sz.width();
if(!empty || !h)
h = QMAX(h, sz.height());
}
return (style().sizeFromContents(QStyle::CT_ToolButton, this, QSize(w, h)).
expandedTo(QApplication::globalStrut()));
}
//___________________________________________________
void Button::paint( QPainter& painter )
{
QPalette palette( _client.palette() );
palette.setCurrentColorGroup( isActive() ? QPalette::Active : QPalette::Inactive);
if(
_client.compositingActive() &&
!( _client.isMaximized() || _type == ButtonItemClose || _type == ButtonItemMenu ) )
{ painter.translate( 0, -1 ); }
// translate buttons down if window maximized
if( _client.isMaximized() ) painter.translate( 0, 1 );
// base button color
QColor base;
if( _type == ButtonItemClose && _forceInactive ) base = _client.backgroundPalette( this, palette ).window().color();
else if( _type == ButtonItemClose ) base = palette.window().color();
else base = palette.button().color();
// text color
QColor color = (_type == ButtonItemClose && _forceInactive ) ?
buttonDetailColor( _client.backgroundPalette( this, palette ) ):
buttonDetailColor( palette );
// decide decoration color
QColor glow;
if( isAnimated() || (_status&Hovered) )
{
glow = isCloseButton() ?
_helper.viewNegativeTextBrush().brush(palette).color():
_helper.viewHoverBrush().brush(palette).color();
if( isAnimated() )
{
color = KColorUtils::mix( color, glow, glowIntensity() );
glow = _helper.alphaColor( glow, glowIntensity() );
} else if( _status&Hovered ) color = glow;
}
if( hasDecoration() )
{
// scale
qreal scale( (21.0*_client.buttonSize())/22.0 );
// pressed state
const bool pressed(
(_status&Pressed) ||
( _type == ButtonSticky && _client.isOnAllDesktops() ) ||
( _type == ButtonAbove && _client.keepAbove() ) ||
( _type == ButtonBelow && _client.keepBelow() ) );
// draw button shape
painter.drawPixmap(0, 0, _helper.windecoButton( base, glow, pressed, scale ) );
}
// Icon
// for menu button the application icon is used
if( isMenuButton() )
{
int iconScale( 0 );
switch( _client.buttonSize() )
{
case Configuration::ButtonSmall: iconScale = 13; break;
default:
case Configuration::ButtonDefault: iconScale = 16; break;
case Configuration::ButtonLarge: iconScale = 20; break;
case Configuration::ButtonVeryLarge: iconScale = 24; break;
case Configuration::ButtonHuge: iconScale = 35; break;
}
const QPixmap& pixmap( _client.icon().pixmap( iconScale ) );
const double offset = 0.5*(width()-pixmap.width() );
painter.drawPixmap(offset, offset-1, pixmap );
} else {
painter.setRenderHints(QPainter::Antialiasing);
qreal width( 1.2 );
// contrast
painter.setBrush(Qt::NoBrush);
painter.setPen(QPen( _helper.calcLightColor( base ), width, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
drawIcon(&painter);
// main
painter.translate(0,-1.5);
painter.setBrush(Qt::NoBrush);
painter.setPen(QPen(color, width, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
drawIcon(&painter);
}
}
