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85 lines
3.3 KiB
85 lines
3.3 KiB
// dear imgui: wrappers for C++ standard library (STL) types (std::string, etc.) |
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// This is also an example of how you may wrap your own similar types. |
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// Changelog: |
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// - v0.10: Initial version. Added InputText() / InputTextMultiline() calls with std::string |
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// See more C++ related extension (fmt, RAII, syntaxis sugar) on Wiki: |
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// https://github.com/ocornut/imgui/wiki/Useful-Extensions#cness |
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#include "imgui.h" |
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#include "imgui_stdlib.h" |
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// Clang warnings with -Weverything |
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#if defined(__clang__) |
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#pragma clang diagnostic push |
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#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness |
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#endif |
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struct InputTextCallback_UserData |
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{ |
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std::string* Str; |
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ImGuiInputTextCallback ChainCallback; |
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void* ChainCallbackUserData; |
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}; |
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static int InputTextCallback(ImGuiInputTextCallbackData* data) |
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{ |
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InputTextCallback_UserData* user_data = (InputTextCallback_UserData*)data->UserData; |
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if (data->EventFlag == ImGuiInputTextFlags_CallbackResize) |
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{ |
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// Resize string callback |
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// If for some reason we refuse the new length (BufTextLen) and/or capacity (BufSize) we need to set them back to what we want. |
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std::string* str = user_data->Str; |
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IM_ASSERT(data->Buf == str->c_str()); |
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str->resize(data->BufTextLen); |
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data->Buf = (char*)str->c_str(); |
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} |
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else if (user_data->ChainCallback) |
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{ |
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// Forward to user callback, if any |
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data->UserData = user_data->ChainCallbackUserData; |
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return user_data->ChainCallback(data); |
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} |
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return 0; |
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} |
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bool ImGui::InputText(const char* label, std::string* str, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data) |
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{ |
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IM_ASSERT((flags & ImGuiInputTextFlags_CallbackResize) == 0); |
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flags |= ImGuiInputTextFlags_CallbackResize; |
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InputTextCallback_UserData cb_user_data; |
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cb_user_data.Str = str; |
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cb_user_data.ChainCallback = callback; |
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cb_user_data.ChainCallbackUserData = user_data; |
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return InputText(label, (char*)str->c_str(), str->capacity() + 1, flags, InputTextCallback, &cb_user_data); |
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} |
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bool ImGui::InputTextMultiline(const char* label, std::string* str, const ImVec2& size, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data) |
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{ |
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IM_ASSERT((flags & ImGuiInputTextFlags_CallbackResize) == 0); |
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flags |= ImGuiInputTextFlags_CallbackResize; |
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InputTextCallback_UserData cb_user_data; |
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cb_user_data.Str = str; |
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cb_user_data.ChainCallback = callback; |
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cb_user_data.ChainCallbackUserData = user_data; |
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return InputTextMultiline(label, (char*)str->c_str(), str->capacity() + 1, size, flags, InputTextCallback, &cb_user_data); |
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} |
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bool ImGui::InputTextWithHint(const char* label, const char* hint, std::string* str, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data) |
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{ |
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IM_ASSERT((flags & ImGuiInputTextFlags_CallbackResize) == 0); |
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flags |= ImGuiInputTextFlags_CallbackResize; |
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InputTextCallback_UserData cb_user_data; |
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cb_user_data.Str = str; |
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cb_user_data.ChainCallback = callback; |
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cb_user_data.ChainCallbackUserData = user_data; |
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return InputTextWithHint(label, hint, (char*)str->c_str(), str->capacity() + 1, flags, InputTextCallback, &cb_user_data); |
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} |
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#if defined(__clang__) |
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#pragma clang diagnostic pop |
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#endif
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