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ImHex/lib/libimhex/include/hex/ui/widgets.hpp
2023-12-19 13:10:25 +01:00

62 lines
1.7 KiB
C++

#pragma once
#include <hex.hpp>
#include <vector>
#include <string>
#include <atomic>
#include <hex/api/task_manager.hpp>
#include <imgui.h>
#include <hex/ui/imgui_imhex_extensions.h>
namespace hex::ui {
template<typename T>
class SearchableWidget {
public:
SearchableWidget(const std::function<bool(const std::string&, const T&)> &comparator) : m_comparator(comparator) {
}
const std::vector<const T*> &draw(const auto &entries) {
if (m_filteredEntries.empty() && m_searchBuffer.empty()) {
for (auto &entry : entries)
m_filteredEntries.push_back(&entry);
}
if (ImGui::InputText("##search", m_searchBuffer)) {
m_pendingUpdate = true;
}
if (m_pendingUpdate && !m_updateTask.isRunning()) {
m_pendingUpdate = false;
m_filteredEntries.clear();
m_filteredEntries.reserve(entries.size());
m_updateTask = TaskManager::createBackgroundTask("Searching", [this, &entries, searchBuffer = m_searchBuffer](Task&) {
for (auto &entry : entries) {
if (searchBuffer.empty() || m_comparator(searchBuffer, entry))
m_filteredEntries.push_back(&entry);
}
});
}
return m_filteredEntries;
}
void reset() {
m_filteredEntries.clear();
}
private:
std::atomic<bool> m_pendingUpdate = false;
TaskHolder m_updateTask;
std::string m_searchBuffer;
std::vector<const T*> m_filteredEntries;
std::function<bool(const std::string&, const T&)> m_comparator;
};
}