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Add an init function to the Item vtable

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This will be called by the run-time and will allow items to set up
bindings that rely on internals that should not be exposed to the
compiler/runtime.
This commit is contained in:
Simon Hausmann 2020-10-12 11:10:12 +02:00
parent 8cf6cdb033
commit a37d42fa0e
9 changed files with 133 additions and 19 deletions
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48
api/sixtyfps-cpp/include/sixtyfps.h
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@ -101,6 +101,13 @@ struct ComponentWindow
cbindgen_private::sixtyfps_component_window_set_focus_item(&inner, c, item);
}
template<typename Component, typename ItemTree>
void init_items(Component *c, ItemTree items) const
{
cbindgen_private::sixtyfps_component_init_items(
VRef<ComponentVTable> { &Component::component_type, c }, items, &inner);
}
private:
cbindgen_private::ComponentWindowOpaque inner;
};
@ -120,9 +127,9 @@ using cbindgen_private::NativeButton;
using cbindgen_private::NativeCheckBox;
using cbindgen_private::NativeGroupBox;
using cbindgen_private::NativeLineEdit;
using cbindgen_private::NativeScrollBar;
using cbindgen_private::NativeSlider;
using cbindgen_private::NativeSpinBox;
using cbindgen_private::NativeScrollBar;
using cbindgen_private::NativeStandardListViewItem;
namespace private_api {
@ -270,7 +277,8 @@ using cbindgen_private::solve_grid_layout;
using cbindgen_private::solve_path_layout;
// models
struct AbstractRepeaterView {
struct AbstractRepeaterView
{
~AbstractRepeaterView() = default;
virtual void row_added(int index, int count) = 0;
virtual void row_removed(int index, int count) = 0;
@ -348,7 +356,8 @@ public:
}
int row_count() const override { return Count; }
ModelData row_data(int i) const override { return data[i]; }
void set_row_data(int i, const ModelData &value) override {
void set_row_data(int i, const ModelData &value) override
{
data[i] = value;
this->row_changed(i);
}
@ -388,11 +397,11 @@ public:
}
/// Remove the row at the given index from the model
void erase(int index) {
void erase(int index)
{
data.erase(data.begin() + index);
this->row_removed(index, 1);
}
};
template<typename C, typename ModelData>
@ -400,25 +409,30 @@ class Repeater
{
Property<std::shared_ptr<Model<ModelData>>> model;
struct RepeaterInner : AbstractRepeaterView {
struct RepeaterInner : AbstractRepeaterView
{
enum class State { Clean, Dirty };
struct ComponentWithState {
struct ComponentWithState
{
State state = State::Dirty;
std::unique_ptr<C> ptr;
};
std::vector<ComponentWithState> data;
bool is_dirty = true;
void row_added(int index, int count) override {
void row_added(int index, int count) override
{
is_dirty = true;
data.resize(data.size() + count);
std::rotate(data.begin() + index, data.end() - count, data.end());
}
void row_changed(int index) override {
void row_changed(int index) override
{
is_dirty = true;
data[index].state = State::Dirty;
}
void row_removed(int index, int count) override {
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) {
@ -457,8 +471,7 @@ public:
auto &c = inner->data[i];
if (c.state == RepeaterInner::State::Dirty) {
if (!c.ptr) {
c.ptr = std::make_unique<C>();
c.ptr->parent = parent;
c.ptr = std::make_unique<C>(parent);
}
c.ptr->update_data(i, m->row_data(i));
}
@ -471,8 +484,9 @@ public:
template<typename Parent>
void ensure_updated_listview(const Parent *parent, const Property<float> *viewport_width,
const Property<float> *viewport_height, [[maybe_unused]] const Property<float> *viewport_y,
float listview_width, [[maybe_unused]] float listview_height) const
const Property<float> *viewport_height,
[[maybe_unused]] const Property<float> *viewport_y,
float listview_width, [[maybe_unused]] float listview_height) const
{
// TODO: the rust code in model.rs try to only allocate as many items as visible items
ensure_updated(parent);
@ -508,7 +522,8 @@ public:
}
}
float compute_layout_listview(const Property<float> *viewport_width, float listview_width) const {
float compute_layout_listview(const Property<float> *viewport_width, float listview_width) const
{
float offset = 0;
viewport_width->set(listview_width);
if (!inner)
@ -519,7 +534,8 @@ public:
return offset;
}
void model_set_row_data(int row, const ModelData &data) const {
void model_set_row_data(int row, const ModelData &data) const
{
if (model.is_dirty()) {
std::abort();
}