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Component: Add information to stich together ItemTrees

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Add accessors to the information necessary to stitch together the
Component-wide ItemTrees (which include DynamicNodes) into one logical
tree of Items.
This commit is contained in:
Tobias Hunger 2022-03-25 09:20:16 +01:00 • committed by Tobias Hunger
parent c1bb22bd00
commit ee68716d07
8 changed files with 368 additions and 17 deletions
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14
api/cpp/include/slint.h
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@ -42,10 +42,12 @@ namespace slint {
namespace private_api {
using cbindgen_private::ComponentVTable;
using cbindgen_private::ItemVTable;
using ComponentRc = vtable::VRc<private_api::ComponentVTable>;
using ComponentRef = vtable::VRef<private_api::ComponentVTable>;
using IndexRange = cbindgen_private::IndexRange;
using ItemRef = vtable::VRef<private_api::ItemVTable>;
using ItemVisitorRefMut = vtable::VRefMut<cbindgen_private::ItemVisitorVTable>;
using cbindgen_private::ComponentRc;
using cbindgen_private::ComponentWeak;
using cbindgen_private::ItemWeak;
using cbindgen_private::TraversalOrder;
}
@ -846,6 +848,16 @@ public:
return { &C::static_vtable, const_cast<C *>(&(**x.ptr)) };
}
void component_at(int i, vtable::VWeak<private_api::ComponentVTable> *result) const
{
const auto &x = inner->data.at(i);
*result = vtable::VWeak<private_api::ComponentVTable>{x.ptr->into_dyn()};
}
private_api::IndexRange index_range() const {
return private_api::IndexRange { 0, inner->data.size() };
}
float compute_layout_listview(const private_api::Property<float> *viewport_width,
float listview_width) const
{