a8e4bedae3
## Summary of the Pull Request Introduces `til::rle`, a vector-like container which stores elements of type T in a run length encoded format. This allows efficient compaction of repeated elements within the vector. ## References * #8000 - Supports buffer rewrite work. A re-use of `til::rle` will be useful as a column counter as we pursue NxM storage and presentation. * #3075 - The new iterators allow skipping forward by multiple units, which wasn't possible under `TextBuffer-/OutputCellIterator`. Additionally it also allows a bulk insertions. * #8787 and #410 - High probability this should be `pmr`-ified like `bitmap` for things like `chafa` and `cacafire` which are changing the run length frequently. ## PR Checklist * [x] Closes #8741 * [x] I work here. * [x] Tests added. * [x] Tests passed. ## Validation Steps Performed * [x] Ran `cacafire` in `OpenConsole.exe` and it looked beautiful * [x] Ran new suite of `RunLengthEncodingTests.cpp` Co-authored-by: Michael Niksa <miniksa@microsoft.com>
69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
/*++
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Copyright (c) Microsoft Corporation
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Licensed under the MIT license.
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Module Name:
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- AttrRow.hpp
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Abstract:
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- contains data structure for the attributes of one row of screen buffer
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Author(s):
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- Michael Niksa (miniksa) 10-Apr-2014
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- Paul Campbell (paulcam) 10-Apr-2014
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Revision History:
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- From components of output.h/.c
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by Therese Stowell (ThereseS) 1990-1991
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- Pulled into its own file from textBuffer.hpp/cpp (AustDi, 2017)
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--*/
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#pragma once
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#include "til/rle.h"
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#include "TextAttribute.hpp"
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class ATTR_ROW final
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{
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using rle_vector = til::small_rle<TextAttribute, uint16_t, 1>;
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public:
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using const_iterator = rle_vector::const_iterator;
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ATTR_ROW(uint16_t width, TextAttribute attr);
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~ATTR_ROW() = default;
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ATTR_ROW(const ATTR_ROW&) = default;
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ATTR_ROW& operator=(const ATTR_ROW&) = default;
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ATTR_ROW(ATTR_ROW&&)
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noexcept = default;
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ATTR_ROW& operator=(ATTR_ROW&&) noexcept = default;
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TextAttribute GetAttrByColumn(uint16_t column) const;
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std::vector<uint16_t> GetHyperlinks() const;
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bool SetAttrToEnd(uint16_t beginIndex, TextAttribute attr);
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void ReplaceAttrs(const TextAttribute& toBeReplacedAttr, const TextAttribute& replaceWith);
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void Resize(uint16_t newWidth);
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void Replace(uint16_t beginIndex, uint16_t endIndex, const TextAttribute& newAttr);
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const_iterator begin() const noexcept;
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const_iterator end() const noexcept;
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const_iterator cbegin() const noexcept;
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const_iterator cend() const noexcept;
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friend bool operator==(const ATTR_ROW& a, const ATTR_ROW& b) noexcept;
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friend class ROW;
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private:
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void Reset(const TextAttribute attr);
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rle_vector _data;
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#ifdef UNIT_TESTING
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friend class CommonState;
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#endif
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};
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