void CannonField::paintEvent( QPaintEvent *e )
{
QRect updateR = e->rect();
QPainter p;
p.begin( this );
if ( updateR.intersects( cannonRect() ) )
paintCannon( &p );
p.end();
}
void CannonField::setAngle( int degrees )
{
if ( degrees < 5 )
degrees = 5;
if ( degrees > 70 )
degrees = 70;
if ( ang == degrees )
return;
ang = degrees;
repaint( cannonRect(), FALSE );
emit angleChanged( ang );
}
void CannonField::setAngle(int angle)
{
if (angle < 5)
angle = 5;
if (angle > 70)
angle = 70;
if (currentAngle == angle)
return;
currentAngle = angle;
update(cannonRect());
emit angleChanged(currentAngle);
}
void CannonField::paintEvent( QPaintEvent *e )
{
QRect updateR = e->rect();
QPainter p( this );
if ( updateR.intersects( cannonRect() ) )
paintCannon( &p );
if ( autoShootTimer->isActive() &&
updateR.intersects( shotRect() ) )
paintShot( &p );
if ( updateR.intersects( targetRect() ) )
paintTarget( &p );
}
void CannonField::paintEvent( QPaintEvent *e )
{
QRect updateR = e->rect();
QPainter p( this );
if ( gameEnded ) {
p.setPen( black );
p.setFont( QFont( "Courier", 48, QFont::Bold ) );
p.drawText( rect(), AlignCenter, "Game Over" );
}
if ( updateR.intersects( cannonRect() ) )
paintCannon( &p );
if ( isShooting() && updateR.intersects( shotRect() ) )
paintShot( &p );
if ( !gameEnded && updateR.intersects( targetRect() ) )
paintTarget( &p );
}
void CannonField::paintCannon( QPainter *p )
{
QRect cr = cannonRect();
QPixmap pix( cr.size() );
pix.fill( this, cr.topLeft() );
QPainter tmp( &pix );
tmp.setBrush( blue );
tmp.setPen( NoPen );
tmp.translate( 0, pix.height() - 1 );
tmp.drawPie( QRect( -35,-35, 70, 70 ), 0, 90*16 );
tmp.rotate( -ang );
tmp.drawRect( barrelRect );
tmp.end();
p->drawPixmap( cr.topLeft(), pix );
}