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add listbox::items() method to get all items index_pairs #613

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add listbox::items() method to get all items index_pairs #613

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1 change: 1 addition & 0 deletions include/nana/gui/widgets/listbox.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1590,6 +1590,7 @@ the nana::detail::basic_window member pointer scheme
///< Prevent sorting until `freeze` is set to false.
bool freeze_sort(bool freeze);

index_pairs items() const; ///<Get the absolute indexes of all items
index_pairs selected() const; ///<Get the absolute indexes of all the selected items

void show_header(bool);
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25 changes: 25 additions & 0 deletions source/gui/widgets/listbox.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1684,6 +1684,25 @@ namespace nana
return changed;
}

index_pairs pick_items() const
{
index_pairs results;
index_pair id;

for (auto& cat : categories_)
{
id.item = 0;
for (auto& m : cat.items)
{
results.push_back(id); // absolute positions, no relative to display

++id.item;
}
++id.cat;
}
return results;
}

/// return absolute positions, no relative to display
/**
* @param for_selection Indicates whether the selected items or checked items to be returned.
Expand Down Expand Up @@ -6100,6 +6119,12 @@ namespace nana
return !_m_ess().lister.active_sort(!freeze);
}

auto listbox::items() const -> index_pairs
{
internal_scope_guard lock;
return _m_ess().lister.pick_items(); // absolute positions, no relative to display
}

auto listbox::selected() const -> index_pairs
{
internal_scope_guard lock;
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