C++ QColorGroup::brush方法代码示例

/*!\reimp
  */
void QCDEStyle::drawExclusiveIndicator( QPainter* p,
				   int x, int y, int w, int h, const QColorGroup &g,
				   bool on, bool down, bool /* enabled */ )
{
    static const QCOORD pts1[] = {		// up left  lines
	1,9, 1,8, 0,7, 0,4, 1,3, 1,2, 2,1, 3,1, 4,0, 7,0, 8,1, 9,1 };
    static const QCOORD pts4[] = {		// bottom right  lines
	2,10, 3,10, 4,11, 7,11, 8,10, 9,10, 10,9, 10,8, 11,7,
	11,4, 10,3, 10,2 };
    static const QCOORD pts5[] = {		// inner fill
	4,2, 7,2, 9,4, 9,7, 7,9, 4,9, 2,7, 2,4 };

    p->eraseRect( x, y, w, h );
    QPointArray a( QCOORDARRLEN(pts1), pts1 );
    a.translate( x, y );
    p->setPen( (down||on) ? g.dark() : g.light() );
    p->drawPolyline( a );
    a.setPoints( QCOORDARRLEN(pts4), pts4 );
    a.translate( x, y );
    p->setPen(  (down||on) ? g.light() : g.dark() );
    p->drawPolyline( a );
    a.setPoints( QCOORDARRLEN(pts5), pts5 );
    a.translate( x, y );
    QColor fillColor = on ? g.dark() : g.background();
    p->setPen( fillColor );
    p->setBrush( on ?  g.brush( QColorGroup::Dark )        :
		       g.brush( QColorGroup::Background ) );
    p->drawPolygon( a );
}

/*!\reimp
 */
void QWindowsStyle::drawComboButton( QPainter *p, int x, int y, int w, int h,
				     const QColorGroup &g, bool sunken ,
				     bool /* editable */,
				     bool enabled,
				     const QBrush *fill )
{
    qDrawWinPanel(p, x, y, w, h, g, TRUE,
		   fill?fill:(enabled?&g.brush( QColorGroup::Base ):
				      &g.brush( QColorGroup::Background )));
    // the special reversed left shadow panel ( slightly different from drawPanel() )
    //qDrawWinPanel(p, w-2-16,2,16,h-4, g, sunken);
    // #### DO SUNKEN!
    if ( sunken )
	drawWinShades( p, x+w-2-16, y+2, 16, h-4,
		       g.dark(), g.dark(), g.button(), g.button(), 
		       fill ? fill : &g.brush( QColorGroup::Button ) );
    else
	drawWinShades( p, x+w-2-16, y+2, 16, h-4,
		       g.midlight(), g.shadow(), g.light(), g.dark(), 
		       fill ? fill : &g.brush( QColorGroup::Button ) );


    drawArrow( p, QStyle::DownArrow, sunken,
	       x+w-2-16+ 2, y+2+ 2, 16- 4, h-4- 4, g, enabled,
	       fill ? fill : &g.brush( QColorGroup::Button ) );

}

/*!\reimp
  */
void QCDEStyle::drawIndicator( QPainter* p,
			       int x, int y, int w, int h, const QColorGroup &g,
			       int s, bool down, bool /* enabled */ )
{
    bool showUp = !down && s == QButton::Off;
    QBrush fill =  down ? g.brush( QColorGroup::Mid )   :
			  g.brush( QColorGroup::Button );
    qDrawShadePanel( p, x, y, w, h, g, !showUp, defaultFrameWidth(), &fill );

    if (s != QButton::Off) {
	QPointArray a( 7*2 );
	int i, xx, yy;
	xx = x+3;
	yy = y+5;
	for ( i=0; i<3; i++ ) {
	    a.setPoint( 2*i,   xx, yy );
	    a.setPoint( 2*i+1, xx, yy+2 );
	    xx++; yy++;
	}
	yy -= 2;
	for ( i=3; i<7; i++ ) {
	    a.setPoint( 2*i,   xx, yy );
	    a.setPoint( 2*i+1, xx, yy+2 );
	    xx++; yy--;
	}
	if ( s == QButton::NoChange )
	    p->setPen( g.dark() );
	else
	    p->setPen( g.foreground() );
	p->drawLineSegments( a );
    }
}

/*!
  Draw a compass needle 
*/
void QwtCompassWindArrow::drawStyle2Needle(
    QPainter *painter, const QColorGroup &cg,
    const QPoint &center, int length, double direction) 
{
    painter->save();
    painter->setPen(Qt::NoPen);

    const double angle = 12.0;
    const double ratio = 0.7;

    const QPoint arrowCenter(center.x() + 1, center.y() + 1);

    QPointArray pa(3);

    pa.setPoint(0, center);
    pa.setPoint(2, qwtDegree2Pos(arrowCenter, ratio * length, direction));

    pa.setPoint(1, qwtDegree2Pos(arrowCenter, length, direction + angle));
    painter->setBrush(cg.brush(QColorGroup::Dark));
    painter->drawPolygon(pa);

    pa.setPoint(1, qwtDegree2Pos(arrowCenter, length, direction - angle));
    painter->setBrush(cg.brush(QColorGroup::Light));
    painter->drawPolygon(pa);

    painter->restore();
}

/*!\reimp
 */
void
QWindowsStyle::drawPushButton( QPushButton* btn, QPainter *p)
{
#ifndef QT_NO_PUSHBUTTON
    QColorGroup g = btn->colorGroup();
    int x1, y1, x2, y2;

    btn->rect().coords( &x1, &y1, &x2, &y2 );	// get coordinates

    p->setPen( g.foreground() );
    p->setBrush( QBrush(g.button(),NoBrush) );

    int diw = buttonDefaultIndicatorWidth();
    if ( btn->isDefault() || btn->autoDefault() ) {
	if ( btn->isDefault() ) {
	    p->setPen( g.shadow() );
	    p->drawRect( x1, y1, x2-x1+1, y2-y1+1 );
	}
	x1 += diw;
	y1 += diw;
	x2 -= diw;
	y2 -= diw;
    }

    bool clearButton = TRUE;
    if ( btn->isDown() ) {
	if ( btn->isDefault() ) {
	    p->setPen( g.dark() );
	    p->drawRect( x1, y1, x2-x1+1, y2-y1+1 );
	} else {
	    drawButton( p, x1, y1, x2-x1+1, y2-y1+1, g, TRUE,
			&g.brush( QColorGroup::Button ) );
	}
    } else {
	if ( btn->isToggleButton() && btn->isOn() && btn->isEnabled() ) {
	    QBrush fill(g.light(), Dense4Pattern );
	    drawButton( p, x1, y1, x2-x1+1, y2-y1+1, g, TRUE, &fill );
	    clearButton = FALSE;
	} else {
	    if ( !btn->isFlat() )
		drawButton( p, x1, y1, x2-x1+1, y2-y1+1, g, btn->isOn(),
			&g.brush( QColorGroup::Button ) );
	}
    }
    if ( clearButton ) {
	if (btn->isDown())
	    p->setBrushOrigin(p->brushOrigin() + QPoint(1,1));
	p->fillRect( x1+2, y1+2, x2-x1-3, y2-y1-3,
		     g.brush( QColorGroup::Button ) );
	if (btn->isDown())
	    p->setBrushOrigin(p->brushOrigin() - QPoint(1,1));
    }

    if ( p->brush().style() != NoBrush )
	p->setBrush( NoBrush );

#endif
}

/*!
  Draw a needle looking like an arrow
*/
void QwtDialSimpleNeedle::drawArrowNeedle(
    QPainter *painter, const QColorGroup &cg,
    const QPoint &center, int length, int width,
    double direction, bool hasKnob)
{
    direction *= M_PI / 180.0;

    painter->save();

    if ( width <= 0 )
    {
        width = (int)QMAX(length * 0.06, 9);
        if ( width % 2 == 0 )
            width++;
    }

    const int peak = 3;
    const QPoint p1(center.x() + 1, center.y() + 1);
    const QPoint p2 = qwtPolar2Pos(p1, length - peak, direction);
    const QPoint p3 = qwtPolar2Pos(p1, length, direction);

    QPointArray pa(5);
    pa.setPoint(0, qwtPolar2Pos(p1, width / 2, direction - M_PI_2));
    pa.setPoint(1, qwtPolar2Pos(p2, 1, direction - M_PI_2));
    pa.setPoint(2, p3);
    pa.setPoint(3, qwtPolar2Pos(p2, 1, direction + M_PI_2));
    pa.setPoint(4, qwtPolar2Pos(p1, width / 2, direction + M_PI_2));

    painter->setPen(Qt::NoPen);
    painter->setBrush(cg.brush(QColorGroup::Mid));
    painter->drawPolygon(pa);

    QPointArray shadowPa(3);

    const int colorOffset = 10;

    int i;
    for ( i = 0; i < 3; i++ )
        shadowPa.setPoint(i, pa[i]);

    painter->setPen(cg.mid().dark(100 + colorOffset));
    painter->drawPolyline(shadowPa);

    for ( i = 0; i < 3; i++ )
        shadowPa.setPoint(i, pa[i + 2]);

    painter->setPen(cg.mid().dark(100 - colorOffset));
    painter->drawPolyline(shadowPa);

    if ( hasKnob )
    {
        drawKnob(painter, center, qRound(width * 1.3), 
            cg.brush(QColorGroup::Base), FALSE);
    }

    painter->restore();
}

void RosterBoxItem::paintCell(QPainter *p, const QColorGroup &cg, int column, int width, int align)
{
	if(!v_rt){
		QListViewItem::paintCell(p, cg, column, width, align);
		return;
	}
	
	p->save();
	
	QListView* lv = listView();
	
	if ( isSelected() != v_selected || lv->isActiveWindow() != v_active) 
		setup();
	
	int r = lv->itemMargin();
	
	const QBrush *paper;
	// setup (colors, sizes, ...)
	if ( isSelected() ) {
		paper = &cg.brush( QColorGroup::Highlight );
	}
	else{
		const QColorGroup::ColorRole crole = QPalette::backgroundRoleFromMode( lv->viewport()->backgroundMode() );
		paper = &cg.brush( crole );
	}
	
	const QPixmap * px = pixmap( column );
	QRect pxrect;
	int pxw = 0;
	int pxh = 0;
	if(px) {
		pxw = px->width();
		pxh = px->height();
		pxrect = QRect(r, (height() - pxh)/2, pxw, pxh);
		r += pxw + lv->itemMargin();
	}
	
	if(px)
		pxrect.moveTop( (height() - pxh)/2 );
	
	// start drawing
	QRect rtrect(r, (height() - v_rt->height())/2, v_widthUsed, v_rt->height());
	v_rt->draw(p, rtrect.left(), rtrect.top(), rtrect, cg, paper);
	
	QRegion clip(0, 0, width, height());
	clip -= rtrect;
	p->setClipRegion(clip, QPainter::CoordPainter);
	p->fillRect( 0, 0, width, height(), *paper );
	
	if(px)
		p->drawPixmap(pxrect, *px);
	
	p->restore();
}

/*!
  Draw a compass needle 
*/
void QwtCompassMagnetNeedle::drawTriangleNeedle(
    QPainter *painter, const QColorGroup &cg,
    const QPoint &center, int length, double direction) 
{
    QBrush brush;

    const int width = qRound(length / 3.0);
    const int colorOffset =  10;

    painter->save();
    painter->setPen(Qt::NoPen);

    const QPoint arrowCenter(center.x() + 1, center.y() + 1);

    QPointArray pa(3);
    pa.setPoint(0, arrowCenter);
    pa.setPoint(1, qwtDegree2Pos(arrowCenter, length, direction));

    pa.setPoint(2, qwtDegree2Pos(arrowCenter, width / 2, direction + 90.0));

    brush = cg.brush(QColorGroup::Dark);
    brush.setColor(brush.color().dark(100 + colorOffset));
    painter->setBrush(brush);
    painter->drawPolygon(pa);

    pa.setPoint(2, qwtDegree2Pos(arrowCenter, width / 2, direction - 90.0));

    brush = cg.brush(QColorGroup::Dark);
    brush.setColor(brush.color().dark(100 - colorOffset));
    painter->setBrush(brush);
    painter->drawPolygon(pa);

    // --

    pa.setPoint(1, qwtDegree2Pos(arrowCenter, length, direction + 180.0));

    pa.setPoint(2, qwtDegree2Pos(arrowCenter, width / 2, direction + 90.0));

    brush = cg.brush(QColorGroup::Light);
    brush.setColor(brush.color().dark(100 + colorOffset));
    painter->setBrush(brush);
    painter->drawPolygon(pa);

    pa.setPoint(2, qwtDegree2Pos(arrowCenter, width / 2, direction - 90.0));

    brush = cg.brush(QColorGroup::Light);
    brush.setColor(brush.color().dark(100 - colorOffset));
    painter->setBrush(brush);
    painter->drawPolygon(pa);

    painter->restore();
}

/*!
  Draws a press-sensitive shape.
*/
void QWindowsStyle::drawButton( QPainter *p, int x, int y, int w, int h,
				const QColorGroup &g, bool sunken, const QBrush* fill)
{
    if (sunken)
	drawWinShades( p, x, y, w, h,
		       g.shadow(), g.light(), g.dark(), g.button(),
		       fill?fill: &g.brush( QColorGroup::Button ) );
    else
	drawWinShades( p, x, y, w, h,
		       g.light(), g.shadow(), g.button(), g.dark(),
		       fill?fill:&g.brush( QColorGroup::Button ) );

}

void MetalStyle::drawComplexControl( ComplexControl cc,
				     QPainter *p,
				     const QWidget *widget,
				     const QRect &r,
				     const QColorGroup &cg,
				     SFlags how,
				     SCFlags sub,
				     SCFlags subActive,
				     const QStyleOption& opt ) const
{
    switch ( cc ) {
    case CC_Slider:
	{
	    const QSlider *slider = ( const QSlider* ) widget;
	    QRect handle = querySubControlMetrics( CC_Slider, widget,
						   SC_SliderHandle, opt);
	    if ( sub & SC_SliderGroove )
		QWindowsStyle::drawComplexControl( cc, p, widget, r, cg, how,
						   SC_SliderGroove, subActive, opt );
	    if ( (sub & SC_SliderHandle) && handle.isValid() )
		drawMetalButton( p, handle.x(), handle.y(), handle.width(),
				 handle.height(), FALSE,
				 slider->orientation() == QSlider::Horizontal);
	    break;
	}
    case CC_ComboBox:
	{
	    // not exactly correct...
	    const QComboBox *cmb = ( const QComboBox* ) widget;
	
	    qDrawWinPanel( p, r.x(), r.y(), r.width(), r.height(), cg, TRUE,
			   cmb->isEnabled() ? &cg.brush( QColorGroup::Base ) :
			                      &cg.brush( QColorGroup::Background ) );
	    drawMetalButton( p, r.x() + r.width() - 2 - 16, r.y() + 2, 16, r.height() - 4,
			     how & Style_Sunken, TRUE );
	    drawPrimitive( PE_ArrowDown, p,
			   QRect( r.x() + r.width() - 2 - 16 + 2,
				  r.y() + 2 + 2, 16 - 4, r.height() - 4 -4 ),
			   cg,
			   cmb->isEnabled() ? Style_Enabled : Style_Default,
			   opt );
	    break;
	}
    default:
	QWindowsStyle::drawComplexControl( cc, p, widget, r, cg, how, sub, subActive,
					   opt );
	break;
    }
}

void FreshStyle::drawSlider( QPainter *p, int x, int y, int w, int h,
	const QColorGroup &g, Orientation o, bool tickAbove, bool tickBelow )
{
    int a = tickAbove ? 3 : 0;
    int b = tickBelow ? 3 : 0;

    if ( o == Horizontal ) {
	drawBevelButton( p, x, y+a, w, h-a-b, g, FALSE, &g.brush( QColorGroup::Button ) );
	int xp = x + w/2;
	qDrawShadeLine( p, xp, y+a+2, xp, y+h-b-3, g );
    } else {
	drawBevelButton( p, x+a, y, w-a-b, h, g, FALSE, &g.brush( QColorGroup::Button ) );
	int yp = y + h/2;
	qDrawShadeLine( p, x+a+2, yp, x+w-b-3, yp, g );
    }
}

/**
 * @internal
 * This paints the item
 */
void OCheckItem::paint( QPainter *p, const QColorGroup &cg, const QRect &cr,
		       bool )
{
    p->fillRect( 0, 0, cr.width(), cr.height(), cg.brush( QColorGroup::Base ) );

    int marg = ( cr.width() - BoxSize ) / 2;
    int x = 0;
    int y = ( cr.height() - BoxSize ) / 2;
    p->setPen( QPen( cg.text() ) );
    p->drawRect( x + marg, y, BoxSize, BoxSize );
    p->drawRect( x + marg+1, y+1, BoxSize-2, BoxSize-2 );
    p->setPen( darkGreen );
    x += 1;
    y += 1;
    if ( m_checked ) {
	QPointArray a( 7*2 );
	int i, xx, yy;
	xx = x+1+marg;
	yy = y+2;
	for ( i=0; i<3; i++ ) {
	    a.setPoint( 2*i,   xx, yy );
	    a.setPoint( 2*i+1, xx, yy+2 );
	    xx++; yy++;
	}
	yy -= 2;
	for ( i=3; i<7; i++ ) {
	    a.setPoint( 2*i,   xx, yy );
	    a.setPoint( 2*i+1, xx, yy+2 );
	    xx++; yy--;
	}
	p->drawLineSegments( a );
    }
}

/*!
  Draw a needle looking like a ray
*/
void QwtDialSimpleNeedle::drawRayNeedle(
    QPainter *painter, const QColorGroup &cg,
    const QPoint &center, int length, int width, double direction, 
    bool hasKnob)
{
    if ( width <= 0 )
        width = 5;

    direction *= M_PI / 180.0;

    painter->save();

    const QPoint p1(center.x() + 1, center.y() + 2);
    const QPoint p2 = qwtPolar2Pos(p1, length, direction);

    if ( width == 1 )
    {
        painter->setPen(QPen(cg.mid(), 1));
        painter->drawLine(p1, p2);
    }
    else
    {
        QPointArray pa(4);
        pa.setPoint(0, qwtPolar2Pos(p1, width / 2, direction + M_PI_2));
        pa.setPoint(1, qwtPolar2Pos(p2, width / 2, direction + M_PI_2));
        pa.setPoint(2, qwtPolar2Pos(p2, width / 2, direction - M_PI_2));
        pa.setPoint(3, qwtPolar2Pos(p1, width / 2, direction - M_PI_2));

        painter->setPen(Qt::NoPen);
        painter->setBrush(cg.brush(QColorGroup::Mid));
        painter->drawPolygon(pa);
    }
    if ( hasKnob )
    {
        int knobWidth = QMAX(qRound(width * 0.7), 5);
        if ( knobWidth % 2 == 0 )
            knobWidth++;

        drawKnob(painter, center, knobWidth, 
            cg.brush(QColorGroup::Base), FALSE);
    }

    painter->restore();
}

void QWindowsStyle::drawIndicator( QPainter* p,
				   int x, int y, int w, int h, const QColorGroup &g,
				   int s, bool down, bool enabled )
{
#ifndef QT_NO_BUTTON
    QBrush fill;
    if ( s == QButton::NoChange ) {
	QBrush b = p->brush();
	QColor c = p->backgroundColor();
	p->setBackgroundMode( TransparentMode );
	p->setBackgroundColor( green );
	fill = QBrush(g.base(), Dense4Pattern);
	p->setBackgroundColor( c );
	p->setBrush( b );
    } else if ( down )
	fill = g.brush( QColorGroup::Button );
    else
	fill = g.brush( enabled ? QColorGroup::Base : QColorGroup::Background );
    qDrawWinPanel( p, x, y, w, h, g, TRUE, &fill );
    if ( s != QButton::Off ) {
	QPointArray a( 7*2 );
	int i, xx, yy;
	xx = x+3;
	yy = y+5;
	for ( i=0; i<3; i++ ) {
	    a.setPoint( 2*i,   xx, yy );
	    a.setPoint( 2*i+1, xx, yy+2 );
	    xx++; yy++;
	}
	yy -= 2;
	for ( i=3; i<7; i++ ) {
	    a.setPoint( 2*i,   xx, yy );
	    a.setPoint( 2*i+1, xx, yy+2 );
	    xx++; yy--;
	}
	if ( s == QButton::NoChange ) {
	    p->setPen( g.dark() );
	} else {
	    p->setPen( g.text() );
	}
	p->drawLineSegments( a );
    }
#endif
}

/*!
  Draw a compass needle 
*/
void QwtCompassMagnetNeedle::drawThinNeedle(
    QPainter *painter, const QColorGroup &cg,
    const QPoint &center, int length, double direction) 
{
    const int colorOffset = 10;
    const int width = QMAX(qRound(length / 6.0), 3);

    painter->save();

    const QPoint arrowCenter(center.x() + 1, center.y() + 1);

    drawPointer(painter, cg.brush(QColorGroup::Dark), colorOffset, 
        arrowCenter, length, width, direction);
    drawPointer(painter, cg.brush(QColorGroup::Light), -colorOffset, 
        arrowCenter, length, width, direction + 180.0);
    
    drawKnob(painter, arrowCenter, width, 
        cg.brush(QColorGroup::Base), TRUE);

    painter->restore();
}