2ae2672ee9
Fixing dep build script on Windows and removing some warnings. Use bundled igl by default. Not building with the dependency scripts if not explicitly stated. This way, it will stay in Fix the libigl patch to include C source files in header only mode.
75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2018 Jérémie Dumas <jeremie.dumas@ens-lyon.org>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_OPENGL_GLFW_IMGUI_IMGUIHELPERS_H
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#define IGL_OPENGL_GLFW_IMGUI_IMGUIHELPERS_H
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////////////////////////////////////////////////////////////////////////////////
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#include <imgui/imgui.h>
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#include <vector>
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#include <string>
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#include <algorithm>
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#include <functional>
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////////////////////////////////////////////////////////////////////////////////
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// Extend ImGui by populating its namespace directly
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//
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// Code snippets taken from there:
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// https://eliasdaler.github.io/using-imgui-with-sfml-pt2/
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namespace ImGui
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{
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static auto vector_getter = [](void* vec, int idx, const char** out_text)
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{
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auto& vector = *static_cast<std::vector<std::string>*>(vec);
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if (idx < 0 || idx >= static_cast<int>(vector.size())) { return false; }
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*out_text = vector.at(idx).c_str();
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return true;
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};
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inline bool Combo(const char* label, int* idx, std::vector<std::string>& values)
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{
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if (values.empty()) { return false; }
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return Combo(label, idx, vector_getter,
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static_cast<void*>(&values), values.size());
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}
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inline bool Combo(const char* label, int* idx, std::function<const char *(int)> getter, int items_count)
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{
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auto func = [](void* data, int i, const char** out_text) {
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auto &getter = *reinterpret_cast<std::function<const char *(int)> *>(data);
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const char *s = getter(i);
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if (s) { *out_text = s; return true; }
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else { return false; }
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};
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return Combo(label, idx, func, reinterpret_cast<void *>(&getter), items_count);
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}
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inline bool ListBox(const char* label, int* idx, std::vector<std::string>& values)
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{
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if (values.empty()) { return false; }
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return ListBox(label, idx, vector_getter,
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static_cast<void*>(&values), values.size());
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}
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inline bool InputText(const char* label, std::string &str, ImGuiInputTextFlags flags = 0, ImGuiTextEditCallback callback = NULL, void* user_data = NULL)
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{
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char buf[1024];
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std::fill_n(buf, 1024, 0);
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std::copy_n(str.begin(), std::min(1024, (int) str.size()), buf);
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if (ImGui::InputText(label, buf, 1024, flags, callback, user_data))
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{
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str = std::string(buf);
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return true;
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}
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return false;
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}
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} // namespace ImGui
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#endif // IGL_OPENGL_GLFW_IMGUI_IMGUIHELPERS_H
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