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https://github.com/mudita/MuditaOS.git
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8f80126251
Added two new scroll bar types. Fixed for ListView with equal height elements and PreRendered which require whole list render - not recommended for big lists but works with not equal heights elements. Applied new types to all lists in Pure. Various cleanups and refactors inside models and listView.
87 lines
2.0 KiB
C++
87 lines
2.0 KiB
C++
// Copyright (c) 2017-2021, Mudita Sp. z.o.o. All rights reserved.
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// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
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#pragma once
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#include <module-gui/gui/widgets/ListItemProvider.hpp>
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#include <cstdint>
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#include <vector>
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#include <utility>
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#include <algorithm>
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#include "Application.hpp"
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namespace app
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{
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template <class T> class DatabaseModel
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{
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protected:
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Application *application = nullptr;
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unsigned int recordsCount = 0;
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int modelIndex = 0;
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std::vector<std::shared_ptr<T>> records;
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public:
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explicit DatabaseModel(Application *app) : application{app}, recordsCount{0}
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{}
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virtual ~DatabaseModel()
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{
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clear();
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}
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virtual bool updateRecords(std::vector<T> dbRecords)
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{
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modelIndex = 0;
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records.clear();
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if (!dbRecords.empty()) {
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for (uint32_t i = 0; i < dbRecords.size(); i++) {
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records.push_back(std::make_shared<T>(dbRecords[i]));
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}
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return true;
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}
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else {
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LOG_ERROR("Null pointer received from DB");
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return false;
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}
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}
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void clear()
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{
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records.clear();
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recordsCount = 0;
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}
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std::shared_ptr<T> getRecord(gui::Order order)
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{
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auto index = 0;
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if (order == gui::Order::Next) {
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index = modelIndex;
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modelIndex++;
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}
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else if (order == gui::Order::Previous) {
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index = records.size() - 1 + modelIndex;
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modelIndex--;
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}
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if (isIndexValid(index)) {
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return records[index];
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}
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else {
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return nullptr;
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}
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}
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[[nodiscard]] bool isIndexValid(unsigned int index) const noexcept
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{
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return index < records.size();
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}
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};
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} /* namespace app */
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