C++ QMenuItem::pixmap方法代码示例

QPixmap *QMenuData::pixmap( int id ) const
{
    QMenuItem *mi = findItem( id );
    return mi ? mi->pixmap() : 0;
}

/*! \reimp */
void QCompactStyle::drawControl( ControlElement element, QPainter *p, const QWidget *widget, const QRect &r,
		  const QColorGroup &g, SFlags flags, const QStyleOption& opt )
{
    switch ( element ) {
    case CE_PopupMenuItem:
	{
	    if (! widget || opt.isDefault())
		break;

	    const QPopupMenu *popupmenu = (const QPopupMenu *) widget;
	    QMenuItem *mi = opt.menuItem();
	    if ( !mi )
		break;

	    int tab = opt.tabWidth();
	    int maxpmw = opt.maxIconWidth();
	    bool dis = !(flags & Style_Enabled);
	    bool checkable = popupmenu->isCheckable();
	    bool act = flags & Style_Active;
	    int x, y, w, h;
	    r.rect( &x, &y, &w, &h );

	    QColorGroup itemg = g;

	    if ( checkable )
		maxpmw = QMAX( maxpmw, 8 ); // 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;
		if ( checkable && mi->isChecked() )
		    pixmap = mi->iconSet()->pixmap( QIconSet::Small, mode, QIconSet::On );
		else
		    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() ) {

		    SFlags cflags = Style_Default;
		    if (! dis)
			cflags |= Style_Enabled;
		    if (act)
			cflags |= Style_On;

		    drawPrimitive( PE_CheckMark, p, QRect(x + motifItemFrame + 2, y + motifItemFrame,
				    mw, mh), itemg, cflags, opt );
		}
	    }

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

//.........这里部分代码省略.........

void KMenuBar::drawContents(QPainter *p)
{
    // Closes the BR77113
    // We need to overload this method to paint only the menu items
    // This way when the KMenuBar is embedded in the menu applet it
    // integrates correctly.
    //
    // Background mode and origin are set so late because of styles
    // using the polish() method to modify these settings.
    //
    // Of course this hack can safely be removed when real transparency
    // will be available

    if(!d->topLevel)
    {
        QMenuBar::drawContents(p);
    }
    else
    {
        bool up_enabled = isUpdatesEnabled();
        BackgroundMode bg_mode = backgroundMode();
        BackgroundOrigin bg_origin = backgroundOrigin();

        setUpdatesEnabled(false);
        setBackgroundMode(X11ParentRelative);
        setBackgroundOrigin(WindowOrigin);

        p->eraseRect(rect());
        erase();

        QColorGroup g = colorGroup();
        bool e;

        for(int i = 0; i < (int)count(); i++)
        {
            QMenuItem *mi = findItem(idAt(i));

            if(!mi->text().isNull() || mi->pixmap())
            {
                QRect r = itemRect(i);
                if(r.isEmpty() || !mi->isVisible())
                    continue;

                e = mi->isEnabledAndVisible();
                if(e)
                    g = isEnabled() ? (isActiveWindow() ? palette().active() : palette().inactive()) : palette().disabled();
                else
                    g = palette().disabled();

                bool item_active = (actItem == i);

                p->setClipRect(r);

                if(item_active)
                {
                    QStyle::SFlags flags = QStyle::Style_Default;
                    if(isEnabled() && e)
                        flags |= QStyle::Style_Enabled;
                    if(item_active)
                        flags |= QStyle::Style_Active;
                    if(item_active && actItemDown)
                        flags |= QStyle::Style_Down;
                    flags |= QStyle::Style_HasFocus;

                    style().drawControl(QStyle::CE_MenuBarItem, p, this, r, g, flags, QStyleOption(mi));
                }
                else
                {
                    style().drawItem(p, r, AlignCenter | AlignVCenter | ShowPrefix, g, e, mi->pixmap(), mi->text());
                }
            }
        }

        setBackgroundOrigin(bg_origin);
        setBackgroundMode(bg_mode);
        setUpdatesEnabled(up_enabled);
    }
}