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Fix removing from model in C++

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This commit is contained in:
Olivier Goffart 2020-09-30 18:17:15 +02:00
parent 5fbe79006c
commit f01977ca06
3 changed files with 44 additions and 9 deletions
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22
api/sixtyfps-cpp/include/sixtyfps.h
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@ -362,13 +362,13 @@ struct IntModel : Model<int>
/// A Model backed by a SharedArray
template<typename ModelData>
class SharedArrayModel : public Model<ModelData>
class VectorModel : public Model<ModelData>
{
SharedArray<ModelData> data;
std::vector<ModelData> data;
public:
SharedArrayModel() = default;
SharedArrayModel(SharedArray<ModelData> array) : data(std::move(array)) { }
VectorModel() = default;
VectorModel(std::vector<ModelData> array) : data(std::move(array)) { }
int row_count() const override { return data.size(); }
ModelData row_data(int i) const override { return data[i]; }
void set_row_data(int i, const ModelData &value) override
@ -377,12 +377,19 @@ public:
this->row_changed(i);
}
// Append a new row with the given value
/// Append a new row with the given value
void push_back(const ModelData &value)
{
data.push_back(value);
this->row_added(data.size() - 1, 1);
}
/// Remove the row at the given index from the model
void erase(int index) {
data.erase(data.begin() + index);
this->row_removed(index, 1);
}
};
template<typename C, typename ModelData>
@ -409,7 +416,12 @@ class Repeater
data[index].state = State::Dirty;
}
void row_removed(int index, int count) override {
is_dirty = true;
data.erase(data.begin() + index, data.begin() + index + count);
for (std::size_t i = index; i < data.size(); ++i) {
// all the indexes are dirty
data[i].state = State::Dirty;
}
}
};