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Add a C++ Sort Model class (#1688)

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This allows automatically sorting a model.
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Simon Hausmann 2022-09-28 10:03:05 +02:00 • committed by GitHub
parent cfbdce735f
commit 6df60fa723
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2 changed files with 293 additions and 2 deletions
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115
api/cpp/tests/models.cpp
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@ -281,3 +281,118 @@ SCENARIO("Mapped Model")
REQUIRE(plus_one_model->row_data(2) == 3);
REQUIRE(plus_one_model->row_data(3) == 5);
}
SCENARIO("Sorted Model Insert")
{
auto vec_model = std::make_shared<slint::VectorModel<int>>(std::vector<int> { 3, 4, 1, 2 });
auto sorted_model = std::make_shared<slint::SortModel<int>>(
vec_model, [](auto lhs, auto rhs) { return lhs < rhs; });
auto observer = std::make_shared<ModelObserver>();
sorted_model->attach_peer(observer);
REQUIRE(sorted_model->row_count() == 4);
REQUIRE(sorted_model->row_data(0) == 1);
REQUIRE(sorted_model->row_data(1) == 2);
REQUIRE(sorted_model->row_data(2) == 3);
REQUIRE(sorted_model->row_data(3) == 4);
vec_model->insert(0, 10);
REQUIRE(observer->added_rows.size() == 1);
REQUIRE(observer->added_rows[0] == ModelObserver::Range { 4, 1 });
REQUIRE(observer->changed_rows.empty());
REQUIRE(observer->removed_rows.empty());
REQUIRE(!observer->model_reset);
observer->clear();
REQUIRE(sorted_model->row_count() == 5);
REQUIRE(sorted_model->row_data(0) == 1);
REQUIRE(sorted_model->row_data(1) == 2);
REQUIRE(sorted_model->row_data(2) == 3);
REQUIRE(sorted_model->row_data(3) == 4);
REQUIRE(sorted_model->row_data(4) == 10);
}
SCENARIO("Sorted Model Remove")
{
auto vec_model = std::make_shared<slint::VectorModel<int>>(std::vector<int> { 3, 4, 1, 2 });
auto sorted_model = std::make_shared<slint::SortModel<int>>(
vec_model, [](auto lhs, auto rhs) { return lhs < rhs; });
auto observer = std::make_shared<ModelObserver>();
sorted_model->attach_peer(observer);
REQUIRE(sorted_model->row_count() == 4);
REQUIRE(sorted_model->row_data(0) == 1);
REQUIRE(sorted_model->row_data(1) == 2);
REQUIRE(sorted_model->row_data(2) == 3);
REQUIRE(sorted_model->row_data(3) == 4);
/// Remove the entry with the value 4
vec_model->erase(1);
REQUIRE(observer->added_rows.empty());
REQUIRE(observer->changed_rows.empty());
REQUIRE(observer->removed_rows.size() == 1);
REQUIRE(observer->removed_rows[0] == ModelObserver::Range { 3, 1 });
REQUIRE(!observer->model_reset);
observer->clear();
REQUIRE(sorted_model->row_count() == 3);
REQUIRE(sorted_model->row_data(0) == 1);
REQUIRE(sorted_model->row_data(1) == 2);
REQUIRE(sorted_model->row_data(2) == 3);
}
SCENARIO("Sorted Model Change")
{
auto vec_model = std::make_shared<slint::VectorModel<int>>(std::vector<int> { 3, 4, 1, 2 });
auto sorted_model = std::make_shared<slint::SortModel<int>>(
vec_model, [](auto lhs, auto rhs) { return lhs < rhs; });
auto observer = std::make_shared<ModelObserver>();
sorted_model->attach_peer(observer);
REQUIRE(sorted_model->row_count() == 4);
REQUIRE(sorted_model->row_data(0) == 1);
REQUIRE(sorted_model->row_data(1) == 2);
REQUIRE(sorted_model->row_data(2) == 3);
REQUIRE(sorted_model->row_data(3) == 4);
/// Change the entry with the value 4 to 10 -> maintain order
vec_model->set_row_data(1, 10);
REQUIRE(observer->added_rows.empty());
REQUIRE(observer->changed_rows.size() == 1);
REQUIRE(observer->changed_rows[0] == 3);
REQUIRE(observer->removed_rows.empty());
REQUIRE(!observer->model_reset);
observer->clear();
REQUIRE(sorted_model->row_count() == 4);
REQUIRE(sorted_model->row_data(0) == 1);
REQUIRE(sorted_model->row_data(1) == 2);
REQUIRE(sorted_model->row_data(2) == 3);
REQUIRE(sorted_model->row_data(3) == 10);
/// Change the entry with the value 10 to 0 -> new order with remove and insert
vec_model->set_row_data(1, 0);
REQUIRE(observer->added_rows.size() == 1);
REQUIRE(observer->added_rows[0] == ModelObserver::Range { 0, 1 });
REQUIRE(observer->changed_rows.empty());
REQUIRE(observer->removed_rows.size() == 1);
REQUIRE(observer->removed_rows[0] == ModelObserver::Range { 3, 1 });
REQUIRE(!observer->model_reset);
observer->clear();
REQUIRE(sorted_model->row_count() == 4);
REQUIRE(sorted_model->row_data(0) == 0);
REQUIRE(sorted_model->row_data(1) == 1);
REQUIRE(sorted_model->row_data(2) == 2);
REQUIRE(sorted_model->row_data(3) == 3);
}