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Fujiwara 2024-09-27 19:59:06 +03:00 committed by GitHub
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85
misc/cpp/imgui_stdlib.cpp Normal file
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// 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.
// Changelog:
// - v0.10: Initial version. Added InputText() / InputTextMultiline() calls with std::string
// See more C++ related extension (fmt, RAII, syntaxis sugar) on Wiki:
// https://github.com/ocornut/imgui/wiki/Useful-Extensions#cness
#include "imgui.h"
#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

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misc/cpp/imgui_stdlib.h Normal file
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// 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.
// Changelog:
// - v0.10: Initial version. Added InputText() / InputTextMultiline() calls with std::string
// See more C++ related extension (fmt, RAII, syntaxis sugar) on Wiki:
// https://github.com/ocornut/imgui/wiki/Useful-Extensions#cness
#pragma once
#include <string>
namespace ImGui
{
// ImGui::InputText() with std::string
// Because text input needs dynamic resizing, we need to setup a callback to grow the capacity
IMGUI_API bool InputText(const char* label, std::string* str, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = nullptr, void* user_data = nullptr);
IMGUI_API bool InputTextMultiline(const char* label, std::string* str, const ImVec2& size = ImVec2(0, 0), ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = nullptr, void* user_data = nullptr);
IMGUI_API bool InputTextWithHint(const char* label, const char* hint, std::string* str, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = nullptr, void* user_data = nullptr);
}