const int& width() const { return extents_m.width(); }
int& width() { return extents_m.width(); }
void slider_t::measure(extents_t& result)
{
GG::Pt min_size = control_m->MinUsableSize();
result.width() = Value(min_size.x);
result.height() = Value(min_size.y);
}
const long& width() const { return extents_m.width(); }
long& width() { return extents_m.width(); }
void popup_t::measure(extents_t& result)
{
assert(control_m);
//
// Make sure that metrics_t is initialized.
//
metrics::set_window(control_m);
//
// The popup_t has multiple text items. We need to find the one with
// the widest extents (when drawn). Then we can make sure that we get
// enough space to draw our largest text item.
//
menu_item_set_t::iterator first(menu_items_m.begin());
menu_item_set_t::iterator last(menu_items_m.end());
RECT largest_extents = { 0, 0, 0, 0 };
bool have_extents = false;
//
// Now iterate through all of our text.
//
while (first != last)
{
//
// Discover the extents of this text!
//
RECT extents;
if (metrics::get_text_extents(CP_DROPDOWNBUTTON, hackery::convert_utf(first->first), extents))
{
//
// Alright, we were able to obtain the required extents.
// Now we just need to see if they are larger than the
// ones we already have.
//
if ((extents.right - extents.left) > (largest_extents.right - largest_extents.left))
largest_extents = extents;
have_extents = true;
}
++first;
}
//
// We don't really use much of UxTheme to discover the bounds of
// the combobox. We can use the GetComboboxInfo function to get
// most of the information we require (such as where the text will
// lie).
//
TEXTMETRIC font_metrics;
int border;
bool have_metrics = metrics::get_font_metrics(CP_DROPDOWNBUTTON, font_metrics);
bool have_border = metrics::get_integer(CP_DROPDOWNBUTTON, TMT_BORDERSIZE, border);
COMBOBOXINFO cbi;
cbi.cbSize = sizeof(cbi);
if (GetComboBoxInfo(control_m, &cbi))
{
RECT text = { 0, 0, 0, 0 };
// currently unused
// RECT size = { 0, 0, 0, 0 };
WINDOWINFO wi = { 0 };
wi.cbSize = sizeof(wi);
if (!GetWindowInfo(control_m, &wi)) ADOBE_THROW_LAST_ERROR;
//
// Figure out the borders around the text entry area.
//
text.left = wi.rcClient.left - wi.rcWindow.left + cbi.rcItem.left;
text.right = wi.rcWindow.right - wi.rcClient.right + cbi.rcItem.right;
text.top = wi.rcClient.top - wi.rcWindow.top + cbi.rcItem.top;
text.bottom = wi.rcWindow.bottom - wi.rcWindow.bottom + cbi.rcItem.bottom;
//
// Figure out the dimensions for the entire control.
//
result.width() = text.left + largest_extents.right - largest_extents.left + cbi.rcButton.right - cbi.rcButton.left;
result.height() = wi.rcWindow.bottom - wi.rcWindow.top;
//
// Deduce the baseline from the text rectangle.
//
int baseline = 0;
if (have_metrics) {
baseline = text.top + font_metrics.tmAscent;
if (have_border) baseline += border;
}
result.vertical().guide_set_m.push_back(baseline);
} else ADOBE_THROW_LAST_ERROR;
//
// If we have a label (always on our left side?) then we
// need to add the size of the label to our result. We try
// to align the label with the popup by baseline. Which is
// kind of what Eve does, so it's bad that we do this
// ourselves, really...
//
if (!using_label_m)
return;
//
// We store the height of the label, from this we can
// figure out how much to offset it when positioning
// the widgets in set_bounds.
//
extents_t label_bounds;
measure_label_text(name_m, label_bounds, ::GetParent(control_m));
static_height_m = label_bounds.height();
static_baseline_m = label_bounds.vertical().guide_set_m[0];
//
// Now we can align the label within the vertical
// slice of the result. This doesn't do anything if
// the label is shorter than the popup.
//
align_slices(result.vertical(), label_bounds.vertical());
//
// Add the width of the label (plus a gap) to the
// resulting width.
//
result.width() += gap + label_bounds.width();
//
// Don't let the width of the popup go too crazy now...
//
result.width() = std::min<long>(static_cast<long>(result.width()), 300); // REVISIT (fbrereto) : fixed width
//
// Add a point-of-interest where the label ends.
// We put the label to the left of the popup.
//
result.horizontal().guide_set_m.push_back(label_bounds.width());
return;
}
