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Internals: fixed ImPool:: iteration, rename GetBufSize to GetMapSize. Amend c6c82b9f

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ocornut
2021-06-04 17:21:59 +02:00
parent c6c82b9f1d
commit 94b680e830
4 changed files with 21 additions and 20 deletions
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15
imgui_internal.h
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@ -612,7 +612,7 @@ struct IMGUI_API ImPool
ImVector<T> Buf; // Contiguous data
ImGuiStorage Map; // ID->Index
ImPoolIdx FreeIdx; // Next free idx to use
ImPoolIdx AliveCount; // Number of active/alive items (for display purpose only)
ImPoolIdx AliveCount; // Number of active/alive items (for display purpose)
ImPool() { FreeIdx = AliveCount = 0; }
~ImPool() { Clear(); }
@ -627,13 +627,14 @@ struct IMGUI_API ImPool
void Remove(ImGuiID key, ImPoolIdx idx) { Buf[idx].~T(); *(int*)&Buf[idx] = FreeIdx; FreeIdx = idx; Map.SetInt(key, -1); AliveCount--; }
void Reserve(int capacity) { Buf.reserve(capacity); Map.Data.reserve(capacity); }
// To iterate a ImPool: for (int n = 0; n < pool.GetBufSize(); n++) if (T* t = pool.TryGetBufData(n)) { ... }
// Can be avoided if you know .Remove() has never been called on the pool, or AliveCount == GetBufSize()
int GetAliveCount() const { return AliveCount; } // Number of active/alive items in the pool (for display purpose only)
int GetBufSize() const { IM_ASSERT(Buf.Size == Map.Data.Size); return Buf.Size; }
T* TryGetBufData(ImPoolIdx n) { int idx = Map.Data[n].val_i; if (idx == -1) return NULL; return GetByIndex(idx); }
// To iterate a ImPool: for (int n = 0; n < pool.GetMapSize(); n++) if (T* t = pool.TryGetMapData(n)) { ... }
// Can be avoided if you know .Remove() has never been called on the pool, or AliveCount == GetMapSize()
int GetAliveCount() const { return AliveCount; } // Number of active/alive items in the pool (for display purpose)
int GetBufSize() const { return Buf.Size; }
int GetMapSize() const { return Map.Data.Size; } // It is the map we need iterate to find valid items, since we don't have "alive" storage anywhere
T* TryGetMapData(ImPoolIdx n) { int idx = Map.Data[n].val_i; if (idx == -1) return NULL; return GetByIndex(idx); }
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
int GetSize() { return GetBufSize(); } // For ImPlot: should use GetMapSize() from (IMGUI_VERSION_NUM >= 18303)
int GetSize() { return GetMapSize(); } // For ImPlot: should use GetMapSize() from (IMGUI_VERSION_NUM >= 18304)
#endif
};