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@ -335,7 +335,7 @@ private:
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*/
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QTabBar::QTabBar( QWidget * parent, const char *name )
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: QWidget( parent, name, WNoAutoErase | WNoMousePropagation ), l(NULL)
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: QWidget( parent, name, WNoAutoErase | WNoMousePropagation ), l(NULL), hoverTab( 0 )
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{
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d = new QTabPrivate;
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d->pressed = 0;
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@ -581,45 +581,49 @@ QSize QTabBar::minimumSizeHint() const
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void QTabBar::paint( QPainter * p, QTab * t, bool selected ) const
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{
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QStyle::SFlags flags = QStyle::Style_Default;
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if (isEnabled() && t->isEnabled())
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flags |= QStyle::Style_Enabled;
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if (topLevelWidget() == qApp->activeWindow())
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flags |= QStyle::Style_Active;
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if ( selected )
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flags |= QStyle::Style_Selected;
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else if(t == d->pressed)
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flags |= QStyle::Style_Sunken;
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//selection flags
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if(t->rect().contains(mapFromGlobal(QCursor::pos())))
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flags |= QStyle::Style_MouseOver;
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style().drawControl( QStyle::CE_TabBarTab, p, this, t->rect(),
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colorGroup(), flags, QStyleOption(t) );
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QRect r( t->r );
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p->setFont( font() );
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int iw = 0;
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int ih = 0;
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if ( t->iconset != 0 ) {
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iw = t->iconset->pixmap( QIconSet::Small, QIconSet::Normal ).width() + 4;
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ih = t->iconset->pixmap( QIconSet::Small, QIconSet::Normal ).height();
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}
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QFontMetrics fm = p->fontMetrics();
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int fw = fm.width( t->label );
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fw -= t->label.contains('&') * fm.width('&');
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fw += t->label.contains("&&") * fm.width('&');
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int w = iw + fw + 4;
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int h = QMAX(fm.height() + 4, ih );
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int offset = 3;
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QStyle::SFlags flags = QStyle::Style_Default;
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if (isEnabled() && t->isEnabled()) {
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flags |= QStyle::Style_Enabled;
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}
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if (topLevelWidget() == qApp->activeWindow()) {
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flags |= QStyle::Style_Active;
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}
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if ( selected ) {
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flags |= QStyle::Style_Selected;
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}
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else if (t == d->pressed) {
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flags |= QStyle::Style_Sunken;
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}
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//selection flags
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if (t->rect().contains(mapFromGlobal(QCursor::pos()))) {
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flags |= QStyle::Style_MouseOver;
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}
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style().drawControl( QStyle::CE_TabBarTab, p, this, t->rect(), colorGroup(), flags, QStyleOption(t, hoverTab) );
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QRect r( t->r );
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p->setFont( font() );
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int iw = 0;
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int ih = 0;
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if ( t->iconset != 0 ) {
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iw = t->iconset->pixmap( QIconSet::Small, QIconSet::Normal ).width() + 4;
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ih = t->iconset->pixmap( QIconSet::Small, QIconSet::Normal ).height();
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}
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QFontMetrics fm = p->fontMetrics();
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int fw = fm.width( t->label );
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fw -= t->label.contains('&') * fm.width('&');
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fw += t->label.contains("&&") * fm.width('&');
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int w = iw + fw + 4;
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int h = QMAX(fm.height() + 4, ih );
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int offset = 3;
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#ifdef Q_WS_MAC
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if (::qt_cast<QMacStyle *>(&style()))
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offset = 0;
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if (::qt_cast<QMacStyle *>(&style())) {
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offset = 0;
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}
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#endif
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paintLabel( p, QRect( r.left() + (r.width()-w)/2 - offset,
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r.top() + (r.height()-h)/2,
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w, h ), t, t->id == keyboardFocusTab() );
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paintLabel( p, QRect( r.left() + (r.width()-w)/2 - offset, r.top() + (r.height()-h)/2, w, h ), t, t->id == keyboardFocusTab() );
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}
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/*!
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@ -630,43 +634,48 @@ void QTabBar::paint( QPainter * p, QTab * t, bool selected ) const
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void QTabBar::paintLabel( QPainter* p, const QRect& br,
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QTab* t, bool has_focus ) const
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{
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QRect r = br;
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bool selected = currentTab() == t->id;
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if ( t->iconset) {
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// the tab has an iconset, draw it in the right mode
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QIconSet::Mode mode = (t->enabled && isEnabled())
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? QIconSet::Normal : QIconSet::Disabled;
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if ( mode == QIconSet::Normal && has_focus )
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mode = QIconSet::Active;
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QPixmap pixmap = t->iconset->pixmap( QIconSet::Small, mode );
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int pixw = pixmap.width();
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int pixh = pixmap.height();
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r.setLeft( r.left() + pixw + 4 );
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r.setRight( r.right() + 2 );
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int xoff = 0, yoff = 0;
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if(!selected) {
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xoff = style().pixelMetric(QStyle::PM_TabBarTabShiftHorizontal, this);
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yoff = style().pixelMetric(QStyle::PM_TabBarTabShiftVertical, this);
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QRect r = br;
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bool selected = currentTab() == t->id;
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if ( t->iconset) {
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// the tab has an iconset, draw it in the right mode
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QIconSet::Mode mode = (t->enabled && isEnabled())
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? QIconSet::Normal : QIconSet::Disabled;
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if ( mode == QIconSet::Normal && has_focus )
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mode = QIconSet::Active;
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QPixmap pixmap = t->iconset->pixmap( QIconSet::Small, mode );
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int pixw = pixmap.width();
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int pixh = pixmap.height();
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r.setLeft( r.left() + pixw + 4 );
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r.setRight( r.right() + 2 );
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int xoff = 0, yoff = 0;
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if(!selected) {
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xoff = style().pixelMetric(QStyle::PM_TabBarTabShiftHorizontal, this);
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yoff = style().pixelMetric(QStyle::PM_TabBarTabShiftVertical, this);
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}
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p->drawPixmap( br.left() + 2 + xoff, br.center().y()-pixh/2 + yoff, pixmap );
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}
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p->drawPixmap( br.left() + 2 + xoff, br.center().y()-pixh/2 + yoff, pixmap );
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}
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QStyle::SFlags flags = QStyle::Style_Default;
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if (isEnabled() && t->isEnabled())
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flags |= QStyle::Style_Enabled;
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if (has_focus)
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flags |= QStyle::Style_HasFocus;
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if ( selected )
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flags |= QStyle::Style_Selected;
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else if(t == d->pressed)
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flags |= QStyle::Style_Sunken;
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if(t->rect().contains(mapFromGlobal(QCursor::pos())))
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flags |= QStyle::Style_MouseOver;
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style().drawControl( QStyle::CE_TabBarLabel, p, this, r,
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t->isEnabled() ? colorGroup(): palette().disabled(),
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flags, QStyleOption(t) );
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QStyle::SFlags flags = QStyle::Style_Default;
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if (isEnabled() && t->isEnabled()) {
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flags |= QStyle::Style_Enabled;
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}
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if (has_focus) {
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flags |= QStyle::Style_HasFocus;
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}
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if ( selected ) {
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flags |= QStyle::Style_Selected;
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}
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else if(t == d->pressed) {
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flags |= QStyle::Style_Sunken;
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}
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if(t->rect().contains(mapFromGlobal(QCursor::pos()))) {
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flags |= QStyle::Style_MouseOver;
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}
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style().drawControl( QStyle::CE_TabBarLabel, p, this, r,
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t->isEnabled() ? colorGroup(): palette().disabled(),
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flags, QStyleOption(t, hoverTab) );
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}
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@ -689,8 +698,9 @@ void QTabBar::paintEvent( QPaintEvent * e )
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t = l->first();
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do {
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QTab * n = l->next();
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if ( t && t->r.intersects( e->rect() ) )
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if ( t && t->r.intersects( e->rect() ) ) {
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paint( buffer.painter(), t, n == 0 );
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}
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t = n;
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} while ( t != 0 );
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@ -776,19 +786,38 @@ void QTabBar::mousePressEvent( QMouseEvent * e )
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void QTabBar::mouseMoveEvent ( QMouseEvent *e )
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{
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if ( e->state() != LeftButton ) {
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e->ignore();
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return;
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}
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if(style().styleHint( QStyle::SH_TabBar_SelectMouseType, this ) == QEvent::MouseButtonRelease) {
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QTab *t = selectTab( e->pos() );
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if(t != d->pressed) {
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if(d->pressed)
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repaint(d->pressed->rect(), FALSE);
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if((d->pressed = t))
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repaint(t->rect(), FALSE);
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// Repaint hover indicator(s)
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// Also, avoid unnecessary repaints which otherwise would occour on every MouseMove event causing high cpu load
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bool forceRepaint = true;
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if (hoverTab == t) {
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forceRepaint = false;
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}
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hoverTab = t;
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if (forceRepaint) {
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repaint(false);
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}
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if ( e->state() != LeftButton ) {
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e->ignore();
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return;
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}
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if(style().styleHint( QStyle::SH_TabBar_SelectMouseType, this ) == QEvent::MouseButtonRelease) {
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if(t != d->pressed) {
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if (d->pressed) {
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if (!forceRepaint) {
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repaint(d->pressed->rect(), FALSE);
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}
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}
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if ((d->pressed = t)) {
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if (!forceRepaint) {
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repaint(t->rect(), FALSE);
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}
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}
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}
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}
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}
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}
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/*!
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@ -797,16 +826,28 @@ void QTabBar::mouseMoveEvent ( QMouseEvent *e )
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void QTabBar::mouseReleaseEvent( QMouseEvent *e )
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{
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if ( e->button() != LeftButton )
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e->ignore();
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if(d->pressed) {
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QTab *t = selectTab( e->pos() ) == d->pressed ? d->pressed : 0;
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d->pressed = 0;
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if(t && t->enabled && e->type() == style().styleHint( QStyle::SH_TabBar_SelectMouseType, this ))
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setCurrentTab( t );
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}
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if (e->button() != LeftButton) {
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e->ignore();
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}
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if (d->pressed) {
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QTab *t = selectTab( e->pos() ) == d->pressed ? d->pressed : 0;
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d->pressed = 0;
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if(t && t->enabled && e->type() == style().styleHint( QStyle::SH_TabBar_SelectMouseType, this )) {
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setCurrentTab( t );
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}
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}
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}
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void QTabBar::enterEvent( QEvent * )
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{
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hoverTab = 0;
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}
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void QTabBar::leaveEvent( QEvent * )
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{
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hoverTab = 0;
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}
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/*!
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\reimp
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@ -1119,7 +1160,7 @@ void QTabBar::layoutTabs()
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h += vframe;
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t->r = QRect(QPoint(x, 0), style().sizeFromContents(QStyle::CT_TabBarTab, this,
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QSize( QMAX( lw + hframe + iw, QApplication::globalStrut().width() ), h ),
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QStyleOption(t) ));
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QStyleOption(t, hoverTab) ));
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x += t->r.width() - overlap;
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r = r.unite( t->r );
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if ( reverse )
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@ -1375,4 +1416,12 @@ void QTabBar::fontChange( const QFont & oldFont )
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QWidget::fontChange( oldFont );
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}
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/*!
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Returns the tab currently under the mouse pointer, or NULL if no tab is under the cursor
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*/
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QTab *QTabBar::mouseHoverTab() const
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{
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return hoverTab;
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}
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#endif
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Darrell Anderson
12 years ago