mirror of
https://github.com/RGBCube/serenity
synced 2025-05-20 05:45:06 +00:00
fd66dda1d7
To support editing of large files it is an advantage to not load the entire file into memory but only load whatever is needed for display at the moment. To make it work, file access is abstracted into a socalled HexDocument, of which there two: a memory based and a file based one. The former can be used for newly created documents, the latter for file based editing. Hex documents now do track changes instead of the HexEditor. HexEditor only sets new values. This frees HexEditor of some responsibility.
80 lines
1.9 KiB
C++
80 lines
1.9 KiB
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Hex.h>
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#include <AK/NonnullRefPtr.h>
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#include <AK/String.h>
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#include <AK/Utf8View.h>
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#include <AK/Vector.h>
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#include <LibGUI/Model.h>
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struct Match {
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u64 offset;
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String value;
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};
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class SearchResultsModel final : public GUI::Model {
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public:
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enum Column {
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Offset,
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Value
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};
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explicit SearchResultsModel(const Vector<Match>&& matches)
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: m_matches(move(matches))
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{
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}
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virtual int row_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override
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{
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return m_matches.size();
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}
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virtual int column_count(const GUI::ModelIndex&) const override
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{
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return 2;
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}
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String column_name(int column) const override
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{
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switch (column) {
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case Column::Offset:
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return "Offset";
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case Column::Value:
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return "Value";
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}
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VERIFY_NOT_REACHED();
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}
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virtual GUI::Variant data(const GUI::ModelIndex& index, GUI::ModelRole role) const override
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{
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if (role == GUI::ModelRole::TextAlignment)
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return Gfx::TextAlignment::CenterLeft;
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if (role == GUI::ModelRole::Custom) {
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auto& match = m_matches.at(index.row());
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return match.offset;
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}
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if (role == GUI::ModelRole::Display) {
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auto& match = m_matches.at(index.row());
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switch (index.column()) {
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case Column::Offset:
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return String::formatted("{:#08X}", match.offset);
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case Column::Value: {
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Utf8View utf8_view(match.value);
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if (!utf8_view.validate())
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return {};
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return StringView(match.value);
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}
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}
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}
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return {};
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}
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private:
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Vector<Match> m_matches;
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};
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