void View::update(Core *c){
if (not _is_transposed){
_contents_frame.p.x = _frame.p.x;
_contents_frame.p.y = _frame.p.y;
_contents_frame.s.w = _frame.s.w;
_contents_frame.s.h = _frame.s.h - header_height();
}
else{
_contents_frame.p.y = _frame.p.x;
_contents_frame.p.x = _frame.p.y;
_contents_frame.s.h = _frame.s.w;
_contents_frame.s.w = _frame.s.h - header_height();
}
_header_frame.p.x = _frame.p.x;
_header_frame.p.y = _frame.p.y + _frame.s.h - header_height();
_header_frame.s.w = _frame.s.w;
_header_frame.s.h = header_height();
if (not _is_transposed){
update_contents(c);
}
else{
glPushMatrix();
double m[16] = {
0.0, 1.0, 0.0, 0.0,
1.0, 0.0, 0.0, 0.0,
0.0, 0.0, 1.0, 0.0,
0.0, 0.0, 0.0, 1.0,
};
glMultMatrixd(m);
update_contents(c);
glPopMatrix();
}
if (_has_header)
update_header(c);
}
size_t View::max_h() {
if (not _is_transposed)
return max_contents_h()+header_height();
else
return max_contents_w()+header_height();
}
void GroupedIconView::paintEvent(QPaintEvent* e) {
// This code was adapted from QListView::paintEvent(), changed to use the
// visualRect() of items, and to draw headers.
QStyleOptionViewItemV4 option(viewOptions());
if (isWrapping())
option.features = QStyleOptionViewItemV2::WrapText;
option.locale = locale();
option.locale.setNumberOptions(QLocale::OmitGroupSeparator);
option.widget = this;
QPainter painter(viewport());
const QRect viewport_rect(e->rect().translated(horizontalOffset(), verticalOffset()));
QVector<QModelIndex> toBeRendered = IntersectingItems(viewport_rect);
const QModelIndex current = currentIndex();
const QAbstractItemModel *itemModel = model();
const QItemSelectionModel *selections = selectionModel();
const bool focus = (hasFocus() || viewport()->hasFocus()) && current.isValid();
const QStyle::State state = option.state;
const QAbstractItemView::State viewState = this->state();
const bool enabled = (state & QStyle::State_Enabled) != 0;
int maxSize = (flow() == TopToBottom)
? viewport()->size().width() - 2 * spacing()
: viewport()->size().height() - 2 * spacing();
QVector<QModelIndex>::const_iterator end = toBeRendered.constEnd();
for (QVector<QModelIndex>::const_iterator it = toBeRendered.constBegin(); it != end; ++it) {
if (!it->isValid()) {
continue;
}
option.rect = visualRect(*it);
if (flow() == TopToBottom)
option.rect.setWidth(qMin(maxSize, option.rect.width()));
else
option.rect.setHeight(qMin(maxSize, option.rect.height()));
option.state = state;
if (selections && selections->isSelected(*it))
option.state |= QStyle::State_Selected;
if (enabled) {
QPalette::ColorGroup cg;
if ((itemModel->flags(*it) & Qt::ItemIsEnabled) == 0) {
option.state &= ~QStyle::State_Enabled;
cg = QPalette::Disabled;
} else {
cg = QPalette::Normal;
}
option.palette.setCurrentColorGroup(cg);
}
if (focus && current == *it) {
option.state |= QStyle::State_HasFocus;
if (viewState == EditingState)
option.state |= QStyle::State_Editing;
}
itemDelegate()->paint(&painter, option, *it);
}
// Draw headers
foreach (const Header& header, headers_) {
const QRect header_rect = QRect(
header_indent_, header.y,
viewport()->width() - header_indent_ * 2, header_height());
// Is this header contained in the area we're drawing?
if (!header_rect.intersects(viewport_rect)) {
continue;
}
// Draw the header
DrawHeader(model()->index(header.first_row, 0),
header_rect.translated(-horizontalOffset(), -verticalOffset()),
&painter);
}
}
void GroupedIconView::LayoutItems() {
if (!model())
return;
const int count = model()->rowCount();
QString last_group;
QPoint next_position(0, 0);
int max_row_height = 0;
visual_rects_.clear();
visual_rects_.reserve(count);
headers_.clear();
for (int i=0 ; i<count ; ++i) {
const QModelIndex index(model()->index(i, 0));
const QString group = index.data(Role_Group).toString();
const QSize size(rectForIndex(index).size());
// Is this the first item in a new group?
if (group != last_group) {
// Add the group header.
Header header;
header.y = next_position.y() + max_row_height + header_indent_;
header.first_row = i;
header.text = group;
if (!last_group.isNull()) {
header.y += header_spacing_;
}
headers_ << header;
// Remember this group so we don't add it again.
last_group = group;
// Move the next item immediately below the header.
next_position.setX(0);
next_position.setY(header.y + header_height() + header_indent_ + header_spacing_);
max_row_height = 0;
}
// Take into account padding and spacing
QPoint this_position(next_position);
if (this_position.x() == 0) {
this_position.setX(this_position.x() + item_indent_);
} else {
this_position.setX(this_position.x() + spacing());
}
// Should this item wrap?
if (next_position.x() != 0 && this_position.x() + size.width() >= viewport()->width()) {
next_position.setX(0);
next_position.setY(next_position.y() + max_row_height);
this_position = next_position;
this_position.setX(this_position.x() + item_indent_);
max_row_height = 0;
}
// Set this item's geometry
visual_rects_.append(QRect(this_position, size));
// Update next index
next_position.setX(this_position.x() + size.width());
max_row_height = qMax(max_row_height, size.height());
}
verticalScrollBar()->setRange(0, next_position.y() + max_row_height - viewport()->height());
update();
}
