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4c9d4b02ef
lines * (width + 8) bytes which is only a little more than a sixth of what it was before. The effect on performance is relatively small. In my tests I measured about 2% slowdown. * Fixed artifacts after soft-wrapped lines. * Re-enabled cursor blinking. I changed it so that the cursor is 1s shown and 0.5s hidden (instead of 1s each). Tell me what you think. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25957 a95241bf-73f2-0310-859d-f6bbb57e9c96
70 lines
1.4 KiB
C++
70 lines
1.4 KiB
C++
/*
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* Copyright 2008, Ingo Weinhold, ingo_weinhold@gmx.de.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef HISTORY_BUFFER_H
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#define HISTORY_BUFFER_H
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#include <SupportDefs.h>
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#include "TerminalLine.h"
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struct HistoryLine;
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struct TerminalLine;
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class HistoryBuffer {
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public:
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HistoryBuffer();
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~HistoryBuffer();
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status_t Init(int32 width, int32 capacity);
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void Clear();
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int32 Width() const { return fWidth; }
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int32 Capacity() const { return fCapacity; }
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int32 Size() const { return fSize; }
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inline HistoryLine* LineAt(int32 index) const;
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TerminalLine* GetTerminalLineAt(int32 index,
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TerminalLine* buffer) const;
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void AddLine(const TerminalLine* line);
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void AddEmptyLines(int32 count);
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void DropLines(int32 count);
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private:
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HistoryLine* _AllocateLine(int32 attributesRuns,
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int32 byteLength);
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inline HistoryLine* _LineAt(int32 index) const;
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private:
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HistoryLine* fLines;
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int32 fWidth;
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int32 fCapacity;
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int32 fNextLine;
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int32 fSize;
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uint8* fBuffer;
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int32 fBufferSize;
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int32 fBufferAllocationOffset;
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};
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inline HistoryLine*
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HistoryBuffer::_LineAt(int32 index) const
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{
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return &fLines[(fCapacity + fNextLine - index - 1) % fCapacity];
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}
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inline HistoryLine*
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HistoryBuffer::LineAt(int32 index) const
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{
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return index >= 0 && index < fSize ? _LineAt(index) : NULL;
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}
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#endif // HISTORY_BUFFER_H
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