void RelatedPacketDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
const QModelIndex &index) const
{
#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
QStyleOptionViewItemV4 option_vi = option;
#else
QStyleOptionViewItem option_vi = option;
#endif
QStyledItemDelegate::initStyleOption(&option_vi, index);
int em_w = option_vi.fontMetrics.height();
int en_w = (em_w + 1) / 2;
int line_w = (option_vi.fontMetrics.lineWidth());
#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
option_vi.features |= QStyleOptionViewItemV4::HasDecoration;
#else
option_vi.features |= QStyleOptionViewItem::HasDecoration;
#endif
option_vi.decorationSize.setHeight(1);
option_vi.decorationSize.setWidth(em_w);
QStyledItemDelegate::paint(painter, option_vi, index);
guint32 setup_frame = 0, last_frame = 0;
if (conv_) {
setup_frame = (int) conv_->setup_frame;
last_frame = (int) conv_->last_frame;
}
const frame_data *fd;
PacketListRecord *record = static_cast<PacketListRecord*>(index.internalPointer());
if (!record || (fd = record->frameData()) == NULL) {
return;
}
painter->save();
if (QApplication::style()->objectName().contains("vista")) {
// QWindowsVistaStyle::drawControl does this internally. Unfortunately there
// doesn't appear to be a more general way to do this.
option_vi.palette.setColor(QPalette::All, QPalette::HighlightedText, option_vi.palette.color(QPalette::Active, QPalette::Text));
}
QPalette::ColorGroup cg = option_vi.state & QStyle::State_Enabled
? QPalette::Normal : QPalette::Disabled;
QColor fg;
if (cg == QPalette::Normal && !(option_vi.state & QStyle::State_Active))
cg = QPalette::Inactive;
if (option_vi.state & QStyle::State_Selected) {
fg = option_vi.palette.color(cg, QPalette::HighlightedText);
} else {
fg = option_vi.palette.color(cg, QPalette::Text);
}
fg = ColorUtils::alphaBlend(fg, option_vi.palette.color(cg, QPalette::Base), 0.5);
QPen line_pen(fg);
line_pen.setWidth(line_w);
line_pen.setJoinStyle(Qt::RoundJoin);
painter->setPen(line_pen);
painter->translate(option_vi.rect.x(), option_vi.rect.y());
painter->translate(en_w + 0.5, 0.5);
painter->setRenderHint(QPainter::Antialiasing, true);
int height = option_vi.rect.height();
// Uncomment to make the boundary visible.
// painter->save();
// painter->setPen(Qt::darkRed);
// painter->drawRect(QRectF(0.5, 0.5, en_w - 1, height - 1));
// painter->restore();
// The current decorations are based on what looked good and were easy
// to code.
// It might be useful to have a JACKPOT_MODE define that shows each
// decoration in sequence in order to make it easier to create
// screenshots for the User's Guide.
// Vertical line. Lower and upper half for the start and end of the
// conversation respectively, solid for conversation member, dashed
// for other packets in the start-end range.
if (setup_frame > 0 && last_frame > 0 && setup_frame != last_frame) {
if (fd->num == setup_frame) {
QPoint start_line[] = {
QPoint(en_w - 1, height / 2),
QPoint(0, height / 2),
QPoint(0, height)
};
painter->drawPolyline(start_line, 3);
} else if (fd->num > setup_frame && fd->num < last_frame) {
painter->save();
if (conv_ != record->conversation()) {
QPen other_pen(line_pen);
other_pen.setStyle(Qt::DashLine);
painter->setPen(other_pen);
}
painter->drawLine(0, 0, 0, height);
painter->restore();
} else if (fd->num == last_frame) {
QPoint end_line[] = {
QPoint(en_w - 1, height / 2),
QPoint(0, height / 2),
QPoint(0, 0)
};
painter->drawPolyline(end_line, 3);
}
}
// Related packet indicator. Rightward arrow for requests, leftward
// arrow for responses, circle for others.
// XXX These are comically oversized when we have multi-line rows.
if (related_frames_.contains(fd->num)) {
painter->setBrush(fg);
switch (related_frames_[fd->num]) {
// Request and response arrows are moved forward one pixel in order to
// maximize white space between the heads and the conversation line.
case FT_FRAMENUM_REQUEST:
{
int hh = height / 2;
QPoint tail(2 - en_w, hh);
QPoint head(en_w, hh);
drawArrow(painter, tail, head, hh / 2);
break;
}
case FT_FRAMENUM_RESPONSE:
{
int hh = height / 2;
QPoint tail(en_w - 1, hh);
QPoint head(1 - en_w, hh);
drawArrow(painter, tail, head, hh / 2);
break;
}
case FT_FRAMENUM_ACK:
{
QRect bbox (2 - en_w, height / 3, em_w - 2, height / 2);
drawCheckMark(painter, bbox);
break;
}
case FT_FRAMENUM_DUP_ACK:
{
QRect bbox (2 - en_w, (height / 3) - (line_w * 2), em_w - 2, height / 2);
drawCheckMark(painter, bbox);
bbox.moveTop(bbox.top() + (line_w * 3));
drawCheckMark(painter, bbox);
break;
}
case FT_FRAMENUM_NONE:
default:
painter->drawEllipse(QPointF(0.0, option_vi.rect.height() / 2), 2, 2);
}
}
painter->restore();
}
void FreshStyle::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_MENUDATA
const QColorGroup & g = pal.active();
bool dis = !enabled;
QColorGroup itemg = dis ? pal.disabled() : pal.active();
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 ( mode == QIconSet::Disabled )
pixmap = mi->iconSet()->pixmap( QIconSet::Automatic, mode );
else
pixmap = mi->iconSet()->pixmap();
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 + 2,
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
}
