static int position_vectorto(lua_State* l)
{
CelxLua celx(l);
celx.checkArgs(2, 2, "One argument expected to position:vectorto");
UniversalCoord* uc = this_position(l);
UniversalCoord* uc2 = to_position(l, 2);
if (uc2 == NULL)
{
celx.doError("Argument to position:vectorto must be a position");
}
celx.newVector(*uc2 - *uc);
return 1;
}
static int position_addvector(lua_State* l)
{
CelxLua celx(l);
celx.checkArgs(2, 2, "One argument expected to position:addvector()");
UniversalCoord* uc = this_position(l);
Vec3d* v3d = celx.toVector(2);
if (v3d == NULL)
{
celx.doError("Vector expected as argument to position:addvector");
}
else
if (uc != NULL && v3d != NULL)
{
UniversalCoord ucnew = *uc + *v3d;
position_new(l, ucnew);
}
return 1;
}
static int position_set(lua_State* l)
{
CelxLua celx(l);
celx.checkArgs(3, 3, "Invalid access of position-component");
UniversalCoord* uc = this_position(l);
string key = celx.safeGetString(2, AllErrors, "Invalid key in position-access");
double value = celx.safeGetNumber(3, AllErrors, "Position components must be numbers");
if (key == "x")
uc->x = value;
else if (key == "y")
uc->y = value;
else if (key == "z")
uc->z = value;
else
{
celx.doError("Invalid key in position-access");
}
return 0;
}
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();
}
