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InputText: Improved sturdiness if the ResizeCallback purposefully modify data->BufTextLen or data->BufSize. (#2006, #1443, #1008)

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omar
2018-08-22 21:26:38 +02:00
parent 7d9d9bc34e
commit 7011d87bf8
2 changed files with 8 additions and 3 deletions
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9
imgui.cpp
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@@ -11163,15 +11163,18 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
callback_data.EventFlag = ImGuiInputTextFlags_CallbackResize;
callback_data.Flags = flags;
callback_data.Buf = buf;
callback_data.BufTextLen = edit_state.CurLenA;
callback_data.BufTextLen = apply_new_text_length;
callback_data.BufSize = ImMax(buf_size, apply_new_text_length + 1);
callback_data.UserData = callback_user_data;
callback(&callback_data);
buf = callback_data.Buf;
buf_size = callback_data.BufSize;
apply_new_text_length = ImMin(callback_data.BufTextLen, buf_size - 1);
IM_ASSERT(apply_new_text_length <= buf_size);
}
IM_ASSERT(apply_new_text_length <= buf_size);
ImStrncpy(buf, edit_state.TempBuffer.Data, apply_new_text_length + 1);
// If the underlying buffer resize was denied or not carried to the next frame, apply_new_text_length+1 may be >= buf_size.
ImStrncpy(buf, edit_state.TempBuffer.Data, ImMin(apply_new_text_length + 1, buf_size));
value_changed = true;
}