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2b72262b4f
I hereby relicense all my work on Sortix under the ISC license as below. All Sortix contributions by other people are already under this license, are not substantial enough to be copyrightable, or have been removed. All imported code from other projects is compatible with this license. All GPL licensed code from other projects had previously been removed. Copyright 2011-2016 Jonas 'Sortie' Termansen and contributors. Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
/*
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* Copyright (c) 2012, 2013, 2014, 2015 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* vgatextbuffer.h
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* An indexable text buffer with the VGA text mode framebuffer as backend.
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*/
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#ifndef SORTIX_VGATEXTBUFFER_H
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#define SORTIX_VGATEXTBUFFER_H
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#include <sortix/kernel/textbuffer.h>
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namespace Sortix {
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class VGATextBuffer : public TextBuffer
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{
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public:
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VGATextBuffer(uint16_t* vga, TextChar* chars, size_t width, size_t height);
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virtual ~VGATextBuffer();
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virtual size_t Width() const;
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virtual size_t Height() const;
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virtual TextChar GetChar(TextPos pos) const;
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virtual void SetChar(TextPos pos, TextChar c);
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virtual void Scroll(ssize_t off, TextChar fillwith);
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virtual void Move(TextPos to, TextPos from, size_t numchars);
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virtual void Fill(TextPos from, TextPos to, TextChar fillwith);
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virtual bool GetCursorEnabled() const;
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virtual void SetCursorEnabled(bool enablecursor);
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virtual TextPos GetCursorPos() const;
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virtual void SetCursorPos(TextPos cursorpos);
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virtual void SpawnThreads();
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virtual void Invalidate();
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virtual bool EmergencyIsImpaired();
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virtual bool EmergencyRecoup();
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virtual void EmergencyReset();
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private:
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bool UsablePosition(TextPos pos) const;
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TextPos CropPosition(TextPos pos) const;
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size_t OffsetOfPos(TextPos pos) const;
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void UpdateCursor();
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private:
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uint16_t* vga;
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TextChar* chars;
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size_t width;
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size_t height;
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TextPos cursorpos;
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bool cursorenabled;
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};
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} // namespace Sortix
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#endif
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