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GetVoidPtr() functions like GetInt, GetFloat. Renamed GetIntPtr/GetFloatPtr to GetIntRef/GetFloatRef

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This commit is contained in:
ocornut 2015-01-29 10:22:32 +01:00
parent 5b180afc4e
commit 79042a3a3c
2 changed files with 25 additions and 18 deletions
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24
imgui.cpp
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@ -127,7 +127,8 @@
Occasionally introducing changes that are breaking the API. The breakage are generally minor and easy to fix.
Here is a change-log of API breaking changes, if you are using one of the functions listed, expect to have to fix some code.
- 2015/01/19 (1.30) - renamed ImGuiStorage::GetIntPtr()/GetFloatPtr() to GetIntRef()/GetIntRef() because Ptr was conflicting with actual pointer storage functions.
- 2015/01/11 (1.30) - big font/image API change! now loads TTF file. allow for multiple fonts. no need for a PNG loader.
(1.30) - removed GetDefaultFontData(). uses io.Fonts->GetTextureData*() API to retrieve uncompressed pixels.
this sequence:
@ -1147,7 +1148,16 @@ float ImGuiStorage::GetFloat(ImU32 key, float default_val) const
return it->val_f;
}
int* ImGuiStorage::GetIntPtr(ImGuiID key, int default_val)
void* ImGuiStorage::GetVoidPtr(ImGuiID key) const
{
ImVector<Pair>::iterator it = LowerBound(const_cast<ImVector<ImGuiStorage::Pair>&>(Data), key);
if (it == Data.end() || it->key != key)
return NULL;
return it->val_p;
}
// References are only valid until a new value is added to the storage. Calling a Set***() function or a Get***Ref() function invalidates the pointer.
int* ImGuiStorage::GetIntRef(ImGuiID key, int default_val)
{
ImVector<Pair>::iterator it = LowerBound(Data, key);
if (it == Data.end() || it->key != key)
@ -1155,7 +1165,7 @@ int* ImGuiStorage::GetIntPtr(ImGuiID key, int default_val)
return &it->val_i;
}
float* ImGuiStorage::GetFloatPtr(ImGuiID key, float default_val)
float* ImGuiStorage::GetFloatRef(ImGuiID key, float default_val)
{
ImVector<Pair>::iterator it = LowerBound(Data, key);
if (it == Data.end() || it->key != key)
@ -1163,14 +1173,6 @@ float* ImGuiStorage::GetFloatPtr(ImGuiID key, float default_val)
return &it->val_f;
}
void* ImGuiStorage::GetVoidPtr(ImGuiID key)
{
ImVector<Pair>::iterator it = LowerBound(Data, key);
if (it == Data.end() || it->key != key)
it = Data.insert(it, Pair(key, (void*)0));
return it->val_p;
}
// FIXME-OPT: Wasting CPU because all SetInt() are preceeded by GetInt() calls so we should have the result from lower_bound already in place.
// However we only use SetInt() on explicit user action (so that's maximum once a frame) so the optimisation isn't much needed.
void ImGuiStorage::SetInt(ImU32 key, int val)

19
imgui.h
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@ -650,20 +650,25 @@ struct ImGuiStorage
// - Get***() functions find pair, never add/allocate. Pairs are sorted so a query is O(log N)
// - Set***() functions find pair, insertion on demand if missing.
// - Get***Ptr() functions find pair, insertion on demand if missing, return pointer. Useful if you intend to do Get+Set.
// A typical use case where this is very convenient:
// float* pvar = ImGui::GetIntPtr(key); ImGui::SliderInt("var", pvar, 0, 100); some_var += *pvar;
// - Sorted insertion is costly but should amortize. A typical frame shouldn't need to insert any new pair.
IMGUI_API void Clear();
IMGUI_API int GetInt(ImGuiID key, int default_val = 0) const;
IMGUI_API void SetInt(ImGuiID key, int val);
IMGUI_API int* GetIntPtr(ImGuiID key, int default_val = 0);
IMGUI_API float GetFloat(ImGuiID key, float default_val = 0.0f) const;
IMGUI_API void SetFloat(ImGuiID key, float val);
IMGUI_API float* GetFloatPtr(ImGuiID key, float default_val = 0);
IMGUI_API void* GetVoidPtr(ImGuiID key) const; // default_val is NULL
IMGUI_API void SetVoidPtr(ImGuiID key, void* val);
IMGUI_API void* GetVoidPtr(ImGuiID key);
IMGUI_API void SetAllInt(int val); // Use on your own storage if you know only integer are being stored.
// - Get***Ref() functions finds pair, insert on demand if missing, return pointer. Useful if you intend to do Get+Set.
// - References are only valid until a new value is added to the storage. Calling a Set***() function or a Get***Ref() function invalidates the pointer.
// - A typical use case where this is convenient:
// float* pvar = ImGui::GetFloatRef(key); ImGui::SliderFloat("var", pvar, 0, 100.0f); some_var += *pvar;
// - You can also use this to quickly create temporary editable values during a session of using Edit&Continue, without restarting your application.
IMGUI_API int* GetIntRef(ImGuiID key, int default_val = 0);
IMGUI_API float* GetFloatRef(ImGuiID key, float default_val = 0);
// Use on your own storage if you know only integer are being stored (open/close all tree nodes)
IMGUI_API void SetAllInt(int val);
};
// Shared state of InputText(), passed to callback when a ImGuiInputTextFlags_Callback* flag is used.