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ImGuiStorage: Added BuildSortByKey() helper to rebuild storage from stratch.

This commit is contained in:
omar 2017-11-24 11:26:42 +01:00
parent ef5dd30625
commit d9c5d72962
2 changed files with 20 additions and 0 deletions
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17
imgui.cpp
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@ -1411,6 +1411,23 @@ static ImVector<ImGuiStorage::Pair>::iterator LowerBound(ImVector<ImGuiStorage::
return first;
}
// For quicker full rebuild of a storage (instead of an incremental one), you may add all your contents and then sort once.
void ImGuiStorage::BuildSortByKey()
{
struct StaticFunc
{
static int PairCompareByID(const void* lhs, const void* rhs)
{
// We can't just do a subtraction because qsort uses signed integers and subtracting our ID doesn't play well with that.
if (((const Pair*)lhs)->key > ((const Pair*)rhs)->key) return +1;
if (((const Pair*)lhs)->key < ((const Pair*)rhs)->key) return -1;
return 0;
}
};
if (Data.Size > 1)
qsort(Data.Data, (size_t)Data.Size, sizeof(Pair), StaticFunc::PairCompareByID);
}
int ImGuiStorage::GetInt(ImGuiID key, int default_val) const
{
ImVector<Pair>::iterator it = LowerBound(const_cast<ImVector<ImGuiStorage::Pair>&>(Data), key);

3
imgui.h
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@ -1097,6 +1097,9 @@ struct ImGuiStorage
// Use on your own storage if you know only integer are being stored (open/close all tree nodes)
IMGUI_API void SetAllInt(int val);
// For quicker full rebuild of a storage (instead of an incremental one), you may add all your contents and then sort once.
IMGUI_API void BuildSortByKey();
};
// Shared state of InputText(), passed to callback when a ImGuiInputTextFlags_Callback* flag is used and the corresponding callback is triggered.