qcommonstyle.cpp

qtopia-phone-2.2.0下公共的控件实现源代码。

/*!\reimp
 */
void
QCommonStyle::drawSliderGrooveMask( QPainter *p,
				   int x, int y, int w, int h,
				   QCOORD c,
				   Orientation orient )
{
    QColorGroup g(color1, color1, color1, color1, color1, color1, color1, color1, color0);
    drawSliderGroove( p, x, y, w, h, g, c, orient );
//      if ( orient == Horizontal )
// 	 p->fillRect(x, y, w, h, color1);
//     else
// 	p->fillRect(x, y, w, h, color1);
}


/*!\reimp
 */
int QCommonStyle::maximumSliderDragDistance() const
{
    return -1;
}



static const int motifArrowHMargin	= 6;	// arrow horizontal margin

/*! \reimp
 */
int QCommonStyle::popupSubmenuIndicatorWidth( const QFontMetrics& fm  )
{
    return fm.ascent() + motifArrowHMargin;
}

void QCommonStyle::drawMenuBarItem( QPainter* p, int x, int y, int w, int h,
				    QMenuItem* mi, QColorGroup& g,
				    bool enabled, bool )
{
#ifndef QT_NO_MENUBAR
    drawItem( p, x, y, w, h, AlignCenter|ShowPrefix|DontClip|SingleLine,
	    g, enabled, mi->pixmap(), mi->text(), -1, &g.buttonText() );
#endif
}

// doesn't really belong here... fix 3.0
QRect QStyle::pushButtonContentsRect( QPushButton* btn )
{
#ifndef QT_NO_PUSHBUTTON
    int fw = 0;
    if ( btn->isDefault() || btn->autoDefault() )
	fw = buttonDefaultIndicatorWidth();

    return buttonRect( fw, fw, btn->width()-2*fw, btn->height()-2*fw );
#else
    return QRect(0,0,0,0);
#endif
}


void QStyle::drawToolBarHandle( QPainter *p, const QRect &r, Qt::Orientation orientation,
				bool highlight, const QColorGroup &cg,
				bool drawBorder )
{
    p->save();
    p->translate( r.x(), r.y() );

    if ( guiStyle() == Qt::MotifStyle ) {
#ifndef QT_NO_STYLE_MOTIFPLUS
	if (inherits("QMotifPlusStyle")) {
	    QMotifPlusStyle *mp = (QMotifPlusStyle *) this;
	    unsigned int i;
	
	    if (orientation == Qt::Vertical) {
		mp->drawButton(p, 0, 0, r.width(), toolBarHandleExtent(),
			       cg, FALSE, &cg.brush(((highlight) ?
						     QColorGroup::Highlight :
						     QColorGroup::Button)));
		
		if (r.width() > 8) {
		    QPointArray a( 2 * ((r.width()-8)/3) );

		    int x = 3 + (r.width()%3)/2;
		    p->setPen( cg.dark() );
		    for( i=0; 2*i < a.size(); i ++ ) {
			a.setPoint( 2*i, x+1+3*i, 6 );
			a.setPoint( 2*i+1, x+2+3*i, 3 );
		    }
		    p->drawPoints( a );
		    p->setPen( cg.light() );
		    for( i=0; 2*i < a.size(); i++ ) {
			a.setPoint( 2*i, x+3*i, 5 );
			a.setPoint( 2*i+1, x+1+3*i, 2 );
		    }
		    p->drawPoints( a );
		}
	    } else {
		mp->drawButton(p, 0, 0, toolBarHandleExtent(), r.height(),
			       cg, FALSE, &cg.brush(((highlight) ?
						     QColorGroup::Highlight :
						     QColorGroup::Button)));
		
		if ( r.height() > 8 ) {
		    QPointArray a( 2 * ((r.height()-8)/3) );
		
		    int y = 3 + (r.height()%3)/2;
		    p->setPen( cg.dark() );
		    for( i=0; 2*i < a.size(); i ++ ) {
			a.setPoint( 2*i, 5, y+1+3*i );
			a.setPoint( 2*i+1, 2, y+2+3*i );
		    }
		    p->drawPoints( a );
		    p->setPen( cg.light() );
		    for( i=0; 2*i < a.size(); i++ ) {
			a.setPoint( 2*i, 4, y+3*i );
			a.setPoint( 2*i+1, 1, y+1+3*i );
		    }
		    p->drawPoints( a );
		}
	    }
	} else
#endif // QT_NO_STYLE_MOTIFPLUS
	{
	    QColor dark( cg.dark() );
	    QColor light( cg.light() );
	    unsigned int i;
	    if ( orientation == Qt::Vertical ) {
		int w = r.width();
		if ( w > 6 ) {
		    if ( highlight )
			p->fillRect( 1, 1, w - 2, 9, cg.highlight() );
		    QPointArray a( 2 * ((w-6)/3) );

		    int x = 3 + (w%3)/2;
		    p->setPen( dark );
		    p->drawLine( 1, 8, w-2, 8 );
		    for( i=0; 2*i < a.size(); i ++ ) {
			a.setPoint( 2*i, x+1+3*i, 6 );
			a.setPoint( 2*i+1, x+2+3*i, 3 );
		    }
		    p->drawPoints( a );
		    p->setPen( light );
		    p->drawLine( 1, 9, w-2, 9 );
		    for( i=0; 2*i < a.size(); i++ ) {
			a.setPoint( 2*i, x+3*i, 5 );
			a.setPoint( 2*i+1, x+1+3*i, 2 );
		    }
		    p->drawPoints( a );
		    if ( drawBorder ) {
			p->setPen( QPen( Qt::darkGray ) );
			p->drawLine( r.width() - 1, 0,
				     r.width() - 1, toolBarHandleExtent() );
		    }
		}
	    } else {
		int h = r.height();
		if ( h > 6 ) {
		    if ( highlight )
			p->fillRect( 1, 1, 8, h - 2, cg.highlight() );
		    QPointArray a( 2 * ((h-6)/3) );
		    int y = 3 + (h%3)/2;
		    p->setPen( dark );
		    p->drawLine( 8, 1, 8, h-2 );
		    for( i=0; 2*i < a.size(); i ++ ) {
			a.setPoint( 2*i, 5, y+1+3*i );
			a.setPoint( 2*i+1, 2, y+2+3*i );
		    }
		    p->drawPoints( a );
		    p->setPen( light );
		    p->drawLine( 9, 1, 9, h-2 );
		    for( i=0; 2*i < a.size(); i++ ) {
			a.setPoint( 2*i, 4, y+3*i );
			a.setPoint( 2*i+1, 1, y+1+3*i );
		    }
		    p->drawPoints( a );
		    if ( drawBorder ) {
			p->setPen( QPen( Qt::darkGray ) );
			p->drawLine( 0, r.height() - 1,
				     toolBarHandleExtent(), r.height() - 1 );
		    }
		}
	    }
	}
    } else {
	if ( orientation == Qt::Vertical ) {
	    if ( r.width() > 4 ) {
		qDrawShadePanel( p, 2, 4, r.width() - 4, 3,
				 cg, highlight, 1, 0 );
		qDrawShadePanel( p, 2, 7, r.width() - 4, 3,
				 cg, highlight, 1, 0 );
	    }
	} else {
	    if ( r.height() > 4 ) {
		qDrawShadePanel( p, 4, 2, 3, r.height() - 4,
				 cg, highlight, 1, 0 );
		qDrawShadePanel( p, 7, 2, 3, r.height() - 4,
				 cg, highlight, 1, 0 );
	    }
	}
    }

    p->restore();
}


void QStyle::drawToolButton( QToolButton* btn, QPainter *p)
{
#ifndef QT_NO_TOOLBUTTON
    if ( !btn )
	return;

    int x = 0;
    int y = 0;
    int w = btn->width();
    int h = btn->height();
    const QColorGroup &g = btn->colorGroup();
    bool sunken = ( btn->isOn() && !btn->son ) || btn->isDown();
    QBrush fill = btn->colorGroup().brush( btn->backgroundMode() == QToolButton::PaletteBackground ?
					   QColorGroup::Background : QColorGroup::Button );
    if ( guiStyle() == WindowsStyle && btn->isOn() )
	fill = QBrush( g.light(), Dense4Pattern );
#if defined(_WS_WIN_)
    if ( btn->uses3D() || btn->isDown() || ( btn->isOn() && !btn->son ) ) {
	// WIN2000 is really tricky here!
	bool drawRect = btn->isOn();
	if ( guiStyle() == WindowsStyle && btn->isOn() &&
	     ( QApplication::winVersion() == Qt::WV_2000 || QApplication::winVersion() == Qt::WV_98 ) &&
	     btn->uses3D() ) {
	    fill = btn->colorGroup().brush( QColorGroup::Button );
	    drawRect = FALSE;
	}
	if ( guiStyle() == WindowsStyle &&
	     ( QApplication::winVersion() == Qt::WV_2000 || QApplication::winVersion() == Qt::WV_98 ) &&
	     btn->autoRaise() ) {
	    drawPanel( p, x, y, w, h, g, sunken, 1, &fill );
	    if ( drawRect ) {
		p->setPen( QPen( g.color( QColorGroup::Button ) ) );
		p->drawRect( x + 1, y + 1, w - 2, h - 2 );
	    }
	} else {
	    drawToolButton( p, x, y, w, h, g, sunken, &fill );
	}
    } else if ( btn->parentWidget() && btn->parentWidget()->backgroundPixmap() &&
		!btn->parentWidget()->backgroundPixmap()->isNull() ) {
 	p->drawTiledPixmap( 0, 0, btn->width(), btn->height(),
			    *btn->parentWidget()->backgroundPixmap(),
			    btn->x(), btn->y() );
    }
#else
    if ( btn->uses3D() || btn->isDown() || ( btn->isOn() && !btn->son ) ) {
	drawToolButton( p, x, y, w, h, g, sunken, &fill );
    } else if ( btn->parentWidget() && btn->parentWidget()->backgroundPixmap() &&
	      !btn->parentWidget()->backgroundPixmap()->isNull() ) {
	if ( btn->testWState(WState_GlobalBrushOrigin) && btn->parentWidget()->backgroundMode() != QWidget::FixedPixmap ) {
	    // paletted brush background, we need to use the brush origin
	    p->fillRect( 0, 0, btn->width(), btn->height(),
		QBrush(QColor(),*btn->parentWidget()->backgroundPixmap()) );
	} else {
	    p->drawTiledPixmap( 0, 0, btn->width(), btn->height(),
				*btn->parentWidget()->backgroundPixmap(),
				btn->x(), btn->y() );
	}
    } else {
	if ( btn->parentWidget() )
	    fill = QBrush( btn->parentWidget()->backgroundColor() );
	drawToolButton( p, x - 10, y - 10, w + 20, h + 20, g, sunken, &fill );
    }
#endif
#endif
}

//### remove in Version 3.0
void QStyle::drawMenuBarItem( QPainter* p, int x, int y, int w, int h,
				    QMenuItem* mi, QColorGroup& g,
				    bool enabled, bool active )
{
#ifndef QT_NO_MENUBAR
#ifndef QT_NO_STYLE_SGI
    if (draw_menu_bar_impl != 0) {
	QDrawMenuBarItemImpl impl = draw_menu_bar_impl;
	(this->*impl)(p, x, y, w, h, mi, g, enabled, active);
	//    } else if ( inherits("QSGIStyle" ) ) {
	//	QSGIStyle* sg = (QSGIStyle*) this;
	//	sg->drawMenuBarItem( p, x, y, w, h, mi, g, enabled, active );
    } else {
        drawItem( p, x, y, w, h, AlignCenter|ShowPrefix|DontClip|SingleLine,
		  g, enabled, mi->pixmap(), mi->text(), -1, &g.buttonText() );
    }
#else
    Q_UNUSED(active);
    drawItem( p, x, y, w, h, AlignCenter|ShowPrefix|DontClip|SingleLine,
	      g, enabled, mi->pixmap(), mi->text(), -1, &g.buttonText() );
#endif	// QT_NO_STYLE_SGI
#endif
}
#endif