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LibGUI: Expand GModelIndex a bit, adding internal data and model pointers.

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This will be useful for implementing more complicated models.
This commit is contained in:
Andreas Kling 2019-03-29 04:58:15 +01:00
parent 12ec55ee74
commit d02238af48
Notes: sideshowbarker 2024-07-19 14:54:19 +09:00
10 changed files with 94 additions and 34 deletions
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8
LibGUI/GSortingProxyModel.cpp
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@ -32,7 +32,7 @@ GModelIndex GSortingProxyModel::map_to_target(const GModelIndex& index) const
return { };
if (index.row() >= row_count() || index.column() >= column_count())
return { };
return { m_row_mappings[index.row()], index.column() };
return target().index(m_row_mappings[index.row()], index.column());
}
String GSortingProxyModel::row_name(int index) const
@ -86,8 +86,8 @@ void GSortingProxyModel::resort()
if (m_key_column == -1)
return;
quick_sort(m_row_mappings.begin(), m_row_mappings.end(), [&] (auto row1, auto row2) -> bool {
auto data1 = target().data({ row1, m_key_column }, GModel::Role::Sort);
auto data2 = target().data({ row2, m_key_column }, GModel::Role::Sort);
auto data1 = target().data(target().index(row1, m_key_column), GModel::Role::Sort);
auto data2 = target().data(target().index(row2, m_key_column), GModel::Role::Sort);
if (data1 == data2)
return 0;
bool is_less_than = data1 < data2;
@ -97,7 +97,7 @@ void GSortingProxyModel::resort()
// Preserve selection.
for (int i = 0; i < row_count; ++i) {
if (m_row_mappings[i] == previously_selected_target_row) {
set_selected_index({ i, 0 });
set_selected_index(index(i, 0));
break;
}
}