qwindowsstyle.cpp

qtopia-phone-2.2.0下公共的控件实现源代码。

	    d = w - d - 1;
	    p->drawLine( x2, y1, x2-d, y1-d);
	    d--;
	    p->setPen( c3 );
	    p->drawLine( x1+1, y1, x1+1+d, y1-d );
	    p->setPen( c1 );
	    p->drawLine( x2-1, y1, x2-1-d, y1-d);
	    break;
	case SlDown:
	    p->setPen( c4 );
	    p->drawLine( x1, y2, x1+d, y2+d);
	    p->setPen( c0 );
	    d = w - d - 1;
	    p->drawLine( x2, y2, x2-d, y2+d);
	    d--;
	    p->setPen( c3 );
	    p->drawLine( x1+1, y2, x1+1+d, y2+d );
	    p->setPen( c1 );
	    p->drawLine( x2-1, y2, x2-1-d, y2+d);
	    break;
	case SlLeft:
	    p->setPen( c4 );
	    p->drawLine( x1, y1, x1-d, y1+d);
	    p->setPen( c0 );
	    d = h - d - 1;
	    p->drawLine( x1, y2, x1-d, y2-d);
	    d--;
	    p->setPen( c3 );
	    p->drawLine( x1, y1+1, x1-d, y1+1+d );
	    p->setPen( c1 );
	    p->drawLine( x1, y2-1, x1-d, y2-1-d);
	    break;
	case SlRight:
	    p->setPen( c4 );
	    p->drawLine( x2, y1, x2+d, y1+d);
	    p->setPen( c0 );
	    d = h - d - 1;
	    p->drawLine( x2, y2, x2+d, y2-d);
	    d--;
	    p->setPen( c3 );
	    p->drawLine(  x2, y1+1, x2+d, y1+1+d );
	    p->setPen( c1 );
	    p->drawLine( x2, y2-1, x2+d, y2-1-d);
	    break;
    }
#endif
}

/*!
  Draws the mask of a slider
*/
void
QWindowsStyle::drawSliderMask( QPainter *p,
			int x, int y, int w, int h,
			Orientation orient, bool tickAbove, bool tickBelow )
{

    if ( tickAbove && tickBelow || !tickAbove && !tickBelow ) {
	p->fillRect(x, y, w, h, color1);
	return;
    }

    int x1 = x;
    int x2 = x+w-1;
    int y1 = y;
    int y2 = y+h-1;

    enum  { SlUp, SlDown, SlLeft, SlRight } dir;

    if ( orient == Horizontal )
	if ( tickAbove )
	    dir = SlUp;
	else
	    dir = SlDown;
    else
	if ( tickAbove )
	    dir = SlLeft;
	else
	    dir = SlRight;

    switch ( dir ) {
    case SlUp:
	y1 = y1 + w/2;
	break;
    case SlDown:
	y2 = y2 - w/2;
	break;
    case SlLeft:
	x1 = x1 + h/2;
	break;
    case SlRight:
	x2 = x2 - h/2;
	break;
    }

    QPointArray a;

    switch ( dir ) {
    case SlUp:
    a.setPoints(5, x1,y1, x1 + w/2, y1 - w/2, x2,y1, x2,y2, x1,y2);
	break;
    case SlDown:
    a.setPoints(5, x1,y1, x2,y1,  x2,y2,  x1 + w/2, y2 + w/2, x1,y2);
	break;
    case SlLeft:
    a.setPoints(5, x1,y1, x2,y1, x2,y2, x1,y2, x1 - h/2, y1 + h/2 );
	break;
    case SlRight:
    a.setPoints(5, x1,y1, x2,y1, x2 + h/2, y1 + h/2,  x2,y2, x1,y2);
	break;
    }


    p->setBrush(color1);
    p->setPen(color1);
    p->drawPolygon( a );

}


/*!\reimp
 */
void QWindowsStyle::drawSliderGroove( QPainter *p,
				      int x, int y, int w, int h,
				      const QColorGroup& g, QCOORD c,
				      Orientation orient )
{

    if ( orient == Horizontal ) {
	qDrawWinPanel( p, x, y + c - 2,  w, 4, g, TRUE );
	p->setPen( g.shadow() );
	p->drawLine( x+1, y + c - 1, x + w - 3, y + c - 1 );
    } else {
	qDrawWinPanel( p, x + c - 2, y, 4, h, g, TRUE );
	p->setPen( g.shadow() );
	p->drawLine( x + c - 1, y + 1, x + c - 1, y + h - 3 );
    }

}
/*!\reimp
 */
int QWindowsStyle::maximumSliderDragDistance() const
{
    return 20;
}


/*! \reimp
*/

int QWindowsStyle::splitterWidth() const
{
    return QMAX( 6, QApplication::globalStrut().width() );
}


/*! \reimp
*/

void QWindowsStyle::drawSplitter( QPainter *p,  int x, int y, int w, int h,
				  const QColorGroup &g,  Orientation)
{
	qDrawWinPanel( p, x, y, w, h, g );
}



static const int motifItemFrame		= 2;	// menu item frame width
static const int motifSepHeight		= 2;	// separator item height
static const int motifItemHMargin	= 3;	// menu item hor text margin
static const int motifItemVMargin	= 2;	// menu item ver text margin
static const int motifArrowHMargin	= 6;	// arrow horizontal margin
static const int motifTabSpacing	= 12;	// space between text and tab
static const int motifCheckMarkHMargin	= 2;	// horiz. margins of check mark
static const int windowsRightBorder	= 12;       // right border on windows
static const int windowsCheckMarkWidth = 12;       // checkmarks width on windows

/*! \reimp
*/
void QWindowsStyle::polishPopupMenu( QPopupMenu* p)
{
#ifndef QT_NO_POPUPMENU
    p->setMouseTracking( TRUE );
    if ( !p->testWState( WState_Polished ) )
	p->setCheckable( TRUE );
    p->setLineWidth( 2 );
#endif
}



/*! \reimp
*/
void QWindowsStyle::drawCheckMark( QPainter *p, int x, int y, int w, int h,
				   const QColorGroup &g,
				   bool act, bool dis )
{
    const int markW = w > 7 ? 7 : w;
    const int markH = markW;
    int posX = x + ( w - markW )/2 - 1;
    int posY = y + ( h - markH )/2;

    // Could do with some optimizing/caching...
    QPointArray a( markH*2 );
    int i, xx, yy;
    xx = posX;
    yy = 3 + posY;
    for ( i=0; i<markW/2; i++ ) {
	a.setPoint( 2*i,   xx, yy );
	a.setPoint( 2*i+1, xx, yy+2 );
	xx++; yy++;
    }
    yy -= 2;
    for ( ; i<markH; i++ ) {
	a.setPoint( 2*i,   xx, yy );
	a.setPoint( 2*i+1, xx, yy+2 );
	xx++; yy--;
    }
    if ( dis && !act ) {
	int pnt;
	p->setPen( g.highlightedText() );
	QPoint offset(1,1);
	for ( pnt = 0; pnt < (int)a.size(); pnt++ )
	    a[pnt] += offset;
	p->drawLineSegments( a );
	for ( pnt = 0; pnt < (int)a.size(); pnt++ )
	    a[pnt] -= offset;
    }
    p->setPen( g.text() );
    p->drawLineSegments( a );
}


/*! \reimp
*/
int QWindowsStyle::extraPopupMenuItemWidth( bool checkable, int maxpmw, QMenuItem* mi, const QFontMetrics& /*fm*/ )
{
#ifndef QT_NO_POPUPMENU
    int w = 2*motifItemHMargin + 2*motifItemFrame; // a little bit of border can never harm

    if ( mi->isSeparator() )
	return 10; // arbitrary
    else if ( mi->pixmap() )
	w += mi->pixmap()->width();	// pixmap only

    if ( !mi->text().isNull() ) {
	if ( mi->text().find('\t') >= 0 )	// string contains tab
	    w += motifTabSpacing;
    }

    if ( maxpmw ) { // we have iconsets
	w += maxpmw;
	w += 6; // add a little extra border around the iconset
    }

    if ( checkable && maxpmw < windowsCheckMarkWidth ) {
	w += windowsCheckMarkWidth - maxpmw; // space for the checkmarks
    }

    if ( maxpmw > 0 || checkable ) // we have a check-column ( iconsets or checkmarks)
	w += motifCheckMarkHMargin; // add space to separate the columns

    w += windowsRightBorder; // windows has a strange wide border on the right side

    return w;
#else
    return 0;
#endif
}

/*! \reimp
*/
int QWindowsStyle::popupMenuItemHeight( bool /*checkable*/, QMenuItem* mi, const QFontMetrics& fm )
{
#ifndef QT_NO_POPUPMENU    
    int h = 0;
    if ( mi->isSeparator() )			// separator height
	h = motifSepHeight;
    else if ( mi->pixmap() )		// pixmap height
	h = mi->pixmap()->height() + 2*motifItemFrame;
    else					// text height
	h = fm.height() + 2*motifItemVMargin + 2*motifItemFrame;

    if ( !mi->isSeparator() && mi->iconSet() != 0 ) {
	h = QMAX( h, mi->iconSet()->pixmap( QIconSet::Small, QIconSet::Normal ).height() + 2*motifItemFrame );
    }
    if ( mi->custom() )
	h = QMAX( h, mi->custom()->sizeHint().height() + 2*motifItemVMargin + 2*motifItemFrame );
    return h;
#else
    return 0;
#endif
}

/*! \reimp
*/
void QWindowsStyle::drawPopupMenuItem( QPainter* p, bool checkable, int maxpmw, int tab, QMenuItem* mi,
				       const QPalette& pal,
				       bool act, bool enabled, int x, int y, int w, int h)
{
#ifndef QT_NO_POPUPMENU    
    const QColorGroup & g = pal.active();
    bool dis	  = !enabled;
    QColorGroup itemg = dis ? pal.disabled() : pal.active();

    if ( checkable ) {
#if defined(_WS_WIN32_)
	if ( qt_winver == Qt::WV_2000 || qt_winver == Qt::WV_98 )
	    maxpmw = QMAX( maxpmw, 16);
	else
#endif
	    maxpmw = QMAX( maxpmw, 12 ); // space for the checkmarks
    }

    int checkcol	  =     maxpmw;

    if ( mi && mi->isSeparator() ) {			// draw separator
	p->setPen( g.dark() );
	p->drawLine( x, y, x+w, y );
	p->setPen( g.light() );
	p->drawLine( x, y+1, x+w, y+1 );
	return;
    }

    QBrush fill = act? g.brush( QColorGroup::Highlight ) :
			    g.brush( QColorGroup::Button );
    p->fillRect( x, y, w, h, fill);

    if ( !mi )
	return;

    if ( mi->isChecked() ) {
	if ( act && !dis ) {
	    qDrawShadePanel( p, x, y, checkcol, h,
			     g, TRUE, 1, &g.brush( QColorGroup::Button ) );
	} else {
	    qDrawShadePanel( p, x, y, checkcol, h,
			     g, TRUE, 1, &g.brush( QColorGroup::Midlight ) );
	}
    } else if ( !act ) {
	p->fillRect(x, y, checkcol , h,
		    g.brush( QColorGroup::Button ));
    }

    if ( mi->iconSet() ) {		// draw iconset
	QIconSet::Mode mode = dis ? QIconSet::Disabled : QIconSet::Normal;
	if (act && !dis )
	    mode = QIconSet::Active;
	QPixmap pixmap = mi->iconSet()->pixmap( QIconSet::Small, mode );
	int pixw = pixmap.width();
	int pixh = pixmap.height();
	if ( act && !dis ) {
	    if ( !mi->isChecked() )
		qDrawShadePanel( p, x, y, checkcol, h, g, FALSE,  1, &g.brush( QColorGroup::Button ) );
	}
	QRect cr( x, y, checkcol, h );
	QRect pmr( 0, 0, pixw, pixh );
	pmr.moveCenter( cr.center() );
	p->setPen( itemg.text() );
	p->drawPixmap( pmr.topLeft(), pixmap );

	QBrush fill = act? g.brush( QColorGroup::Highlight ) :
			      g.brush( QColorGroup::Button );
	p->fillRect( x+checkcol + 1, y, w - checkcol - 1, h, fill);
    } else  if ( checkable ) {	// just "checking"...
	int mw = checkcol + motifItemFrame;
	int mh = h - 2*motifItemFrame;
	if ( mi->isChecked() ) {
	    drawCheckMark( p, x + motifItemFrame,
			   y+motifItemFrame, mw, mh, itemg, act, dis );
	}
    }

    p->setPen( act ? g.highlightedText() : g.buttonText() );

    QColor discol;
    if ( dis ) {
	discol = itemg.text();
	p->setPen( discol );
    }

    int xm = motifItemFrame + checkcol + motifItemHMargin;

    if ( mi->custom() ) {
	int m = motifItemVMargin;
	p->save();
	if ( dis && !act ) {
	    p->setPen( g.light() );
	    mi->custom()->paint( p, itemg, act, enabled,
				 x+xm+1, y+m+1, w-xm-tab+1, h-2*m );
	    p->setPen( discol );
	}
	mi->custom()->paint( p, itemg, act, enabled,
			     x+xm, y+m, w-xm-tab+1, h-2*m );
	p->restore();
    }
    QString s = mi->text();
    if ( !s.isNull() ) {			// draw text
	int t = s.find( '\t' );
	int m = motifItemVMargin;
	const int text_flags = AlignVCenter|ShowPrefix | DontClip | SingleLine;
	if ( t >= 0 ) {				// draw tab text
	    if ( dis && !act ) {
		p->setPen( g.light() );
		p->drawText( x+w-tab-windowsRightBorder-motifItemHMargin-motifItemFrame+1,
			     y+m+1, tab, h-2*m, text_flags, s.mid( t+1 ));
		p->setPen( discol );
	    }
	    p->drawText( x+w-tab-windowsRightBorder-motifItemHMargin-motifItemFrame,
			 y+m, tab, h-2*m, text_flags, s.mid( t+1 ) );
	}
	if ( dis && !act ) {
	    p->setPen( g.light() );
	    p->drawText( x+xm+1, y+m+1, w-xm+1, h-2*m, text_flags, s, t );
	    p->setPen( discol );
	}
	p->drawText( x+xm, y+m, w-xm-tab+1, h-2*m, text_flags, s, t );
    } else if ( mi->pixmap() ) {			// draw pixmap
	QPixmap *pixmap = mi->pixmap();
	if ( pixmap->depth() == 1 )
	    p->setBackgroundMode( OpaqueMode );
	p->drawPixmap( x+xm, y+motifItemFrame, *pixmap );
	if ( pixmap->depth() == 1 )
	    p->setBackgroundMode( TransparentMode );
    }
    if ( mi->popup() ) {			// draw sub menu arrow
	int dim = (h-2*motifItemFrame) / 2;
	if ( act ) {
	    if ( !dis )
		discol = white;
	    QColorGroup g2( discol, g.highlight(),
			    white, white,
			    dis ? discol : white,
			    discol, white );
	    drawArrow( p, RightArrow, FALSE,
			       x+w - motifArrowHMargin - motifItemFrame - dim,  y+h/2-dim/2,
			       dim, dim, g2, TRUE );
	} else {
	    drawArrow( p, RightArrow,
			       FALSE,
			       x+w - motifArrowHMargin - motifItemFrame - dim,  y+h/2-dim/2,
			       dim, dim, g, mi->isEnabled() );
	}
    }
#endif
}

#endif