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https://github.com/mudita/MuditaOS.git
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31e60282d2
Add Text scrolling, Add text starting position, Added text scrolling, updated TextLine line endings, TextBlocks newline handling, updated SMS Bubble and Notes text items. Added tests for scrolling.
58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
// Copyright (c) 2017-2020, 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 <list>
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#include <utility>
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#include "TextBlock.hpp"
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#include "TextBlockCursor.hpp"
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namespace gui
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{
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class TextLine;
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class TextDocument
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{
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friend BlockCursor;
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static const std::string newline;
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std::list<TextBlock> blocks;
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public:
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TextDocument(const std::list<TextBlock> &blocks);
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~TextDocument();
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void destroy();
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void append(std::list<TextBlock> &&blocks);
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void append(TextBlock &&text);
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void addNewline(BlockCursor &cursor, TextBlock::End eol);
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[[nodiscard]] auto getText() const -> UTF8;
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/// --- in progress
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BlockCursor getBlockCursor(unsigned int position);
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/// get part of TextBlock based on cursor
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std::string getText(BlockCursor cursor);
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/// needed for tests, alternatively could be mocked in test...
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[[nodiscard]] const std::list<TextBlock> &getBlocks() const;
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[[nodiscard]] const TextBlock *getBlock(BlockCursor *cursor) const;
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/// note just for creating line for easy current block under cursor access
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/// remove - use getTextPart instead?
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/// or remove getTextPart and always use cursor...
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const TextBlock &operator()(const BlockCursor &cursor) const;
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void removeBlock(unsigned int block_nr);
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void removeBlock(std::list<TextBlock>::iterator it);
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// TODO this is very unoptimal...
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bool isEmpty() const
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{
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return getText().length() == 0;
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}
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private:
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/// splits text block in document and returns two new blocks (in place of last one)
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auto split(BlockCursor &cursor) -> std::pair<TextBlock &, TextBlock &>;
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};
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}; // namespace gui
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