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| author | grm <grm@eyesin.space> | 2026-03-14 02:29:15 +0200 |
|---|---|---|
| committer | grm <grm@eyesin.space> | 2026-03-14 02:29:15 +0200 |
| commit | 650e5afde271d22b3653832daf339e1bd09a10d6 (patch) | |
| tree | cc5e536b0150de1109daa43a055547d2266e60dd /lib/imgui-1.92.6/misc/cpp/imgui_stdlib.cpp | |
| parent | 20e64711ce2a09b657fb79d59cb824e9e34d2b07 (diff) | |
| download | cgame-master.tar.gz cgame-master.tar.bz2 cgame-master.zip | |
Diffstat (limited to 'lib/imgui-1.92.6/misc/cpp/imgui_stdlib.cpp')
| -rw-r--r-- | lib/imgui-1.92.6/misc/cpp/imgui_stdlib.cpp | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/lib/imgui-1.92.6/misc/cpp/imgui_stdlib.cpp b/lib/imgui-1.92.6/misc/cpp/imgui_stdlib.cpp new file mode 100644 index 0000000..282ca62 --- /dev/null +++ b/lib/imgui-1.92.6/misc/cpp/imgui_stdlib.cpp @@ -0,0 +1,100 @@ +// dear imgui: wrappers for C++ standard library (STL) types (std::string, etc.) + +// This is also an example of how you may wrap your own similar types. +// TL;DR; this is using the ImGuiInputTextFlags_CallbackResize facility, +// which also demonstrated in 'Dear ImGui Demo->Widgets->Text Input->Resize Callback'. + +// Changelog: +// - v0.10: Initial version. Added InputText() / InputTextMultiline() calls with std::string + +// Usage: +// { +// #include "misc/cpp/imgui_stdlib.h" +// #include "misc/cpp/imgui_stdlib.cpp" // <-- If you want to include implementation without messing with your project/build. +// [...] +// std::string my_string; +// ImGui::InputText("my string", &my_string); +// } + +// See more C++ related extension (fmt, RAII, syntactic sugar) on Wiki: +// https://github.com/ocornut/imgui/wiki/Useful-Extensions#cness + +#include "imgui.h" +#ifndef IMGUI_DISABLE +#include "imgui_stdlib.h" + +// Clang warnings with -Weverything +#if defined(__clang__) +#pragma clang diagnostic push +#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness +#endif + +struct InputTextCallback_UserData +{ + std::string* Str; + ImGuiInputTextCallback ChainCallback; + void* ChainCallbackUserData; +}; + +static int InputTextCallback(ImGuiInputTextCallbackData* data) +{ + InputTextCallback_UserData* user_data = (InputTextCallback_UserData*)data->UserData; + if (data->EventFlag == ImGuiInputTextFlags_CallbackResize) + { + // Resize string callback + // If for some reason we refuse the new length (BufTextLen) and/or capacity (BufSize) we need to set them back to what we want. + std::string* str = user_data->Str; + IM_ASSERT(data->Buf == str->c_str()); + str->resize(data->BufTextLen); + data->Buf = (char*)str->c_str(); + } + else if (user_data->ChainCallback) + { + // Forward to user callback, if any + data->UserData = user_data->ChainCallbackUserData; + return user_data->ChainCallback(data); + } + return 0; +} + +bool ImGui::InputText(const char* label, std::string* str, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data) +{ + IM_ASSERT((flags & ImGuiInputTextFlags_CallbackResize) == 0); + flags |= ImGuiInputTextFlags_CallbackResize; + + InputTextCallback_UserData cb_user_data; + cb_user_data.Str = str; + cb_user_data.ChainCallback = callback; + cb_user_data.ChainCallbackUserData = user_data; + return InputText(label, (char*)str->c_str(), str->capacity() + 1, flags, InputTextCallback, &cb_user_data); +} + +bool ImGui::InputTextMultiline(const char* label, std::string* str, const ImVec2& size, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data) +{ + IM_ASSERT((flags & ImGuiInputTextFlags_CallbackResize) == 0); + flags |= ImGuiInputTextFlags_CallbackResize; + + InputTextCallback_UserData cb_user_data; + cb_user_data.Str = str; + cb_user_data.ChainCallback = callback; + cb_user_data.ChainCallbackUserData = user_data; + return InputTextMultiline(label, (char*)str->c_str(), str->capacity() + 1, size, flags, InputTextCallback, &cb_user_data); +} + +bool ImGui::InputTextWithHint(const char* label, const char* hint, std::string* str, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data) +{ + IM_ASSERT((flags & ImGuiInputTextFlags_CallbackResize) == 0); + flags |= ImGuiInputTextFlags_CallbackResize; + + InputTextCallback_UserData cb_user_data; + cb_user_data.Str = str; + cb_user_data.ChainCallback = callback; + cb_user_data.ChainCallbackUserData = user_data; + return InputTextWithHint(label, hint, (char*)str->c_str(), str->capacity() + 1, flags, InputTextCallback, &cb_user_data); +} + +#if defined(__clang__) +#pragma clang diagnostic pop +#endif + +#endif // #ifndef IMGUI_DISABLE |
