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GNU GENERAL PUBLIC LICENSE
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Version 3, 29 June 2007
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|
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Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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Preamble
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The GNU General Public License is a free, copyleft license for
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software for all its users. We, the Free Software Foundation, use the
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GNU General Public License for most of our software; it applies also to
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When we speak of free software, we are referring to freedom, not
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You may convey a covered work in object code form under the terms
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Corresponding Source conveyed, and Installation Information provided,
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|
||||
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|
||||
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||||
|
||||
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||||
|
||||
"Additional permissions" are terms that supplement the terms of this
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||||
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|
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||||
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||||
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||||
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||||
|
||||
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|
||||
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|
||||
|
||||
You may not propagate or modify a covered work except as expressly
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||||
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||||
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||||
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||||
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|
||||
to receive a copy likewise does not require acceptance. However,
|
||||
nothing other than this License grants you permission to propagate or
|
||||
modify any covered work. These actions infringe copyright if you do
|
||||
not accept this License. Therefore, by modifying or propagating a
|
||||
covered work, you indicate your acceptance of this License to do so.
|
||||
|
||||
10. Automatic Licensing of Downstream Recipients.
|
||||
|
||||
Each time you convey a covered work, the recipient automatically
|
||||
receives a license from the original licensors, to run, modify and
|
||||
propagate that work, subject to this License. You are not responsible
|
||||
for enforcing compliance by third parties with this License.
|
||||
|
||||
An "entity transaction" is a transaction transferring control of an
|
||||
organization, or substantially all assets of one, or subdividing an
|
||||
organization, or merging organizations. If propagation of a covered
|
||||
work results from an entity transaction, each party to that
|
||||
transaction who receives a copy of the work also receives whatever
|
||||
licenses to the work the party's predecessor in interest had or could
|
||||
give under the previous paragraph, plus a right to possession of the
|
||||
Corresponding Source of the work from the predecessor in interest, if
|
||||
the predecessor has it or can get it with reasonable efforts.
|
||||
|
||||
You may not impose any further restrictions on the exercise of the
|
||||
rights granted or affirmed under this License. For example, you may
|
||||
not impose a license fee, royalty, or other charge for exercise of
|
||||
rights granted under this License, and you may not initiate litigation
|
||||
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||
any patent claim is infringed by making, using, selling, offering for
|
||||
sale, or importing the Program or any portion of it.
|
||||
|
||||
11. Patents.
|
||||
|
||||
A "contributor" is a copyright holder who authorizes use under this
|
||||
License of the Program or a work on which the Program is based. The
|
||||
work thus licensed is called the contributor's "contributor version".
|
||||
|
||||
A contributor's "essential patent claims" are all patent claims
|
||||
owned or controlled by the contributor, whether already acquired or
|
||||
hereafter acquired, that would be infringed by some manner, permitted
|
||||
by this License, of making, using, or selling its contributor version,
|
||||
but do not include claims that would be infringed only as a
|
||||
consequence of further modification of the contributor version. For
|
||||
purposes of this definition, "control" includes the right to grant
|
||||
patent sublicenses in a manner consistent with the requirements of
|
||||
this License.
|
||||
|
||||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||
patent license under the contributor's essential patent claims, to
|
||||
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||
propagate the contents of its contributor version.
|
||||
|
||||
In the following three paragraphs, a "patent license" is any express
|
||||
agreement or commitment, however denominated, not to enforce a patent
|
||||
(such as an express permission to practice a patent or covenant not to
|
||||
sue for patent infringement). To "grant" such a patent license to a
|
||||
party means to make such an agreement or commitment not to enforce a
|
||||
patent against the party.
|
||||
|
||||
If you convey a covered work, knowingly relying on a patent license,
|
||||
and the Corresponding Source of the work is not available for anyone
|
||||
to copy, free of charge and under the terms of this License, through a
|
||||
publicly available network server or other readily accessible means,
|
||||
then you must either (1) cause the Corresponding Source to be so
|
||||
available, or (2) arrange to deprive yourself of the benefit of the
|
||||
patent license for this particular work, or (3) arrange, in a manner
|
||||
consistent with the requirements of this License, to extend the patent
|
||||
license to downstream recipients. "Knowingly relying" means you have
|
||||
actual knowledge that, but for the patent license, your conveying the
|
||||
covered work in a country, or your recipient's use of the covered work
|
||||
in a country, would infringe one or more identifiable patents in that
|
||||
country that you have reason to believe are valid.
|
||||
|
||||
If, pursuant to or in connection with a single transaction or
|
||||
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||
covered work, and grant a patent license to some of the parties
|
||||
receiving the covered work authorizing them to use, propagate, modify
|
||||
or convey a specific copy of the covered work, then the patent license
|
||||
you grant is automatically extended to all recipients of the covered
|
||||
work and works based on it.
|
||||
|
||||
A patent license is "discriminatory" if it does not include within
|
||||
the scope of its coverage, prohibits the exercise of, or is
|
||||
conditioned on the non-exercise of one or more of the rights that are
|
||||
specifically granted under this License. You may not convey a covered
|
||||
work if you are a party to an arrangement with a third party that is
|
||||
in the business of distributing software, under which you make payment
|
||||
to the third party based on the extent of your activity of conveying
|
||||
the work, and under which the third party grants, to any of the
|
||||
parties who would receive the covered work from you, a discriminatory
|
||||
patent license (a) in connection with copies of the covered work
|
||||
conveyed by you (or copies made from those copies), or (b) primarily
|
||||
for and in connection with specific products or compilations that
|
||||
contain the covered work, unless you entered into that arrangement,
|
||||
or that patent license was granted, prior to 28 March 2007.
|
||||
|
||||
Nothing in this License shall be construed as excluding or limiting
|
||||
any implied license or other defenses to infringement that may
|
||||
otherwise be available to you under applicable patent law.
|
||||
|
||||
12. No Surrender of Others' Freedom.
|
||||
|
||||
If conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot convey a
|
||||
covered work so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you may
|
||||
not convey it at all. For example, if you agree to terms that obligate you
|
||||
to collect a royalty for further conveying from those to whom you convey
|
||||
the Program, the only way you could satisfy both those terms and this
|
||||
License would be to refrain entirely from conveying the Program.
|
||||
|
||||
13. Use with the GNU Affero General Public License.
|
||||
|
||||
Notwithstanding any other provision of this License, you have
|
||||
permission to link or combine any covered work with a work licensed
|
||||
under version 3 of the GNU Affero General Public License into a single
|
||||
combined work, and to convey the resulting work. The terms of this
|
||||
License will continue to apply to the part which is the covered work,
|
||||
but the special requirements of the GNU Affero General Public License,
|
||||
section 13, concerning interaction through a network will apply to the
|
||||
combination as such.
|
||||
|
||||
14. Revised Versions of this License.
|
||||
|
||||
The Free Software Foundation may publish revised and/or new versions of
|
||||
the GNU General Public License from time to time. Such new versions will
|
||||
be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the
|
||||
Program specifies that a certain numbered version of the GNU General
|
||||
Public License "or any later version" applies to it, you have the
|
||||
option of following the terms and conditions either of that numbered
|
||||
version or of any later version published by the Free Software
|
||||
Foundation. If the Program does not specify a version number of the
|
||||
GNU General Public License, you may choose any version ever published
|
||||
by the Free Software Foundation.
|
||||
|
||||
If the Program specifies that a proxy can decide which future
|
||||
versions of the GNU General Public License can be used, that proxy's
|
||||
public statement of acceptance of a version permanently authorizes you
|
||||
to choose that version for the Program.
|
||||
|
||||
Later license versions may give you additional or different
|
||||
permissions. However, no additional obligations are imposed on any
|
||||
author or copyright holder as a result of your choosing to follow a
|
||||
later version.
|
||||
|
||||
15. Disclaimer of Warranty.
|
||||
|
||||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. Limitation of Liability.
|
||||
|
||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||
SUCH DAMAGES.
|
||||
|
||||
17. Interpretation of Sections 15 and 16.
|
||||
|
||||
If the disclaimer of warranty and limitation of liability provided
|
||||
above cannot be given local legal effect according to their terms,
|
||||
reviewing courts shall apply local law that most closely approximates
|
||||
an absolute waiver of all civil liability in connection with the
|
||||
Program, unless a warranty or assumption of liability accompanies a
|
||||
copy of the Program in return for a fee.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
How to Apply These Terms to Your New Programs
|
||||
|
||||
If you develop a new program, and you want it to be of the greatest
|
||||
possible use to the public, the best way to achieve this is to make it
|
||||
free software which everyone can redistribute and change under these terms.
|
||||
|
||||
To do so, attach the following notices to the program. It is safest
|
||||
to attach them to the start of each source file to most effectively
|
||||
state the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the program's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program does terminal interaction, make it output a short
|
||||
notice like this when it starts in an interactive mode:
|
||||
|
||||
<program> Copyright (C) <year> <name of author>
|
||||
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
This is free software, and you are welcome to redistribute it
|
||||
under certain conditions; type `show c' for details.
|
||||
|
||||
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||
parts of the General Public License. Of course, your program's commands
|
||||
might be different; for a GUI interface, you would use an "about box".
|
||||
|
||||
You should also get your employer (if you work as a programmer) or school,
|
||||
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||
For more information on this, and how to apply and follow the GNU GPL, see
|
||||
<https://www.gnu.org/licenses/>.
|
||||
|
||||
The GNU General Public License does not permit incorporating your program
|
||||
into proprietary programs. If your program is a subroutine library, you
|
||||
may consider it more useful to permit linking proprietary applications with
|
||||
the library. If this is what you want to do, use the GNU Lesser General
|
||||
Public License instead of this License. But first, please read
|
||||
<https://www.gnu.org/licenses/why-not-lgpl.html>.
|
|
@ -0,0 +1,6 @@
|
|||
# piss
|
||||
|
||||
*Not to be confused with [pissterm](https://git.tebibyte.media/mars/piss).*
|
||||
|
||||
A modular terminal emulator for Tomo. It can be embedded as an element into
|
||||
another window, or used as a standalone application.
|
|
@ -0,0 +1,38 @@
|
|||
package ansi
|
||||
|
||||
// C0 represents a list of C0 control codes.
|
||||
// https://en.wikipedia.org/wiki/C0_and_C1_control_codes
|
||||
type C0 byte; const (
|
||||
C0_Null C0 = iota
|
||||
C0_StartOfHeading
|
||||
C0_StartOfText
|
||||
C0_EndOfText
|
||||
C0_EndOfTransmission
|
||||
C0_Enquiry
|
||||
C0_Acknowledge
|
||||
C0_Bell
|
||||
C0_Backspace
|
||||
C0_CharacterTab
|
||||
C0_LineFeed
|
||||
C0_LineTab
|
||||
C0_FormFeed
|
||||
C0_CarriageReturn
|
||||
C0_ShiftOut
|
||||
C0_ShiftIn
|
||||
C0_DataLinkEscape
|
||||
C0_DeviceControlOne
|
||||
C0_DeviceControlTwo
|
||||
C0_DeviceControlThree
|
||||
C0_DeviceControlFour
|
||||
C0_NegativeAcknowledge
|
||||
C0_SynchronousIdle
|
||||
C0_EndOfTransmissionBlock
|
||||
C0_Cancel
|
||||
C0_EndOfMedium
|
||||
C0_Substitute
|
||||
C0_Escape
|
||||
C0_FileSeparator
|
||||
C0_GroupSeparator
|
||||
C0_RecordSeparator
|
||||
C0_UnitSeparator
|
||||
)
|
|
@ -0,0 +1,48 @@
|
|||
package ansi
|
||||
|
||||
// C1 represents a list of C1 control codes.
|
||||
// https://en.wikipedia.org/wiki/C0_and_C1_control_codes
|
||||
type C1 byte; const (
|
||||
C1_PaddingCharacter C1 = iota + 128
|
||||
C1_HighOctetPreset
|
||||
C1_BreakPermittedHere
|
||||
C1_NoBreakHere
|
||||
C1_Index
|
||||
C1_NextLine
|
||||
C1_StartOfSelectedArea
|
||||
C1_EndOfSelectedArea
|
||||
C1_CharacterTabSet
|
||||
C1_CharacterTabWithJustification
|
||||
C1_LineTabSet
|
||||
C1_PartialLineForward
|
||||
C1_PartialLineBackward
|
||||
C1_ReverseLineFeed
|
||||
C1_SingleShift2
|
||||
C1_SingleShift3
|
||||
C1_DeviceControlString
|
||||
C1_PrivateUse1
|
||||
C1_PrivateUse2
|
||||
C1_SetTransmitState
|
||||
C1_CancelCharacter
|
||||
C1_MessageWaiting
|
||||
C1_StartOfProtectedArea
|
||||
C1_EndOfProtectedArea
|
||||
C1_StartOfString
|
||||
C1_SingleGraphicCharacterIntroducer
|
||||
C1_SingleCharacterIntroducer
|
||||
C1_ControlSequenceIntroducer
|
||||
C1_StringTerminator
|
||||
C1_OperatingSystemCommand
|
||||
C1_PrivacyMessage
|
||||
C1_ApplicationProgramCommand
|
||||
)
|
||||
|
||||
// Is checks if a byte is equal to a C0 code.
|
||||
func (code C0) Is (test byte) bool {
|
||||
return test == byte(code)
|
||||
}
|
||||
|
||||
// Is checks if a byte is equal to a C1 code.
|
||||
func (code C1) Is (test byte) bool {
|
||||
return byte(code) == test
|
||||
}
|
|
@ -0,0 +1,90 @@
|
|||
package ansi
|
||||
|
||||
import "image/color"
|
||||
|
||||
var _ color.Color = Color(0)
|
||||
|
||||
// Color represents a 3, 4, or 8-Bit ansi color.
|
||||
type Color byte; const (
|
||||
// Dim/standard colors
|
||||
ColorBlack Color = iota
|
||||
ColorRed
|
||||
ColorGreen
|
||||
ColorYellow
|
||||
ColorBlue
|
||||
ColorMagenta
|
||||
ColorCyan
|
||||
ColorWhite
|
||||
|
||||
// Bright colors
|
||||
ColorBrightBlack
|
||||
ColorBrightRed
|
||||
ColorBrightGreen
|
||||
ColorBrightYellow
|
||||
ColorBrightBlue
|
||||
ColorBrightMagenta
|
||||
ColorBrightCyan
|
||||
ColorBrightWhite
|
||||
|
||||
// 216 cube colors (16 - 231)
|
||||
// 24 grayscale colors (232 - 255)
|
||||
)
|
||||
|
||||
// Is16 returns whether the color is a dim or bright color, and can be assigned
|
||||
// to a theme palette.
|
||||
func (c Color) Is16 () bool {
|
||||
return c.IsDim() || c.IsBright()
|
||||
}
|
||||
|
||||
// IsDim returns whether the color is dim.
|
||||
func (c Color) IsDim () bool {
|
||||
return c < 8
|
||||
}
|
||||
|
||||
// IsBright returns whether the color is bright.
|
||||
func (c Color) IsBright () bool {
|
||||
return c >= 8 && c < 16
|
||||
}
|
||||
|
||||
// IsCube returns whether the color is part of the 6x6x6 cube.
|
||||
func (c Color) IsCube () bool {
|
||||
return c >= 16 && c < 232
|
||||
}
|
||||
|
||||
// IsGrayscale returns whether the color grayscale.
|
||||
func (c Color) IsGrayscale () bool {
|
||||
return c >= 232 && c <= 255
|
||||
}
|
||||
|
||||
// RGB returns the 8 bit RGB values of the color as a color.RGBA value.
|
||||
func (c Color) RGB () (out color.RGBA) {
|
||||
switch {
|
||||
case c.Is16():
|
||||
// each bit is a color component
|
||||
out.R = 0xFF * uint8((c & 0x1) >> 0)
|
||||
out.G = 0xFF * uint8((c & 0x2) >> 1)
|
||||
out.B = 0xFF * uint8((c & 0x4) >> 3)
|
||||
// dim if color is in the dim range
|
||||
if c & 0x8 > 0 { out.R >>= 1; out.G >>= 1; out.B >>= 1 }
|
||||
|
||||
case c.IsCube():
|
||||
index := int(c - 16)
|
||||
out.R = uint8((((index / 36) % 6) * 255) / 5)
|
||||
out.G = uint8((((index / 6) % 6) * 255) / 5)
|
||||
out.B = uint8((((index ) % 6) * 255) / 5)
|
||||
|
||||
case c.IsGrayscale():
|
||||
out.R = uint8(((int(c) - 232) * 255) / 23)
|
||||
out.G = out.R
|
||||
out.B = out.R
|
||||
}
|
||||
|
||||
out.A = 0xFF
|
||||
return
|
||||
|
||||
}
|
||||
|
||||
// RGBA fulfills the color.Color interface.
|
||||
func (c Color) RGBA () (r, g, b, a uint32) {
|
||||
return c.RGB().RGBA()
|
||||
}
|
|
@ -0,0 +1,17 @@
|
|||
package ansi
|
||||
|
||||
// CSI represents a list of CSI sequences that have no parameters.
|
||||
// FIXME: some of these do indeed have parameters
|
||||
type CSI int; const (
|
||||
CSI_DeviceStatusReport CSI = iota
|
||||
CSI_SaveCursorPosition
|
||||
CSI_RestoreCursorPosition
|
||||
CSI_ShowCursor
|
||||
CSI_HideCursor
|
||||
CSI_EnableReportingFocus
|
||||
CSI_DisableReportingFocus
|
||||
CSI_EnableAlternativeBuffer
|
||||
CSI_DisableAlternativeBuffer
|
||||
CSI_EnableBracketedPasteMode
|
||||
CSI_DisableBracketedPasteMode
|
||||
)
|
|
@ -0,0 +1,360 @@
|
|||
package ansi
|
||||
|
||||
import "strconv"
|
||||
import "strings"
|
||||
import "image/color"
|
||||
|
||||
// Useful: https://en.wikipedia.org/wiki/ANSI_escape_code
|
||||
|
||||
// Decoder is a state machine capable of decoding text contianing various escape
|
||||
// codes and sequences. It satisfies io.Writer. It has no constructor and its
|
||||
// zero value can be used safely.
|
||||
type Decoder struct {
|
||||
// OnText is called when a segment of text is processed.
|
||||
OnText func (string)
|
||||
|
||||
// OnC0 is called when a C0 control code is processed that isn't a
|
||||
// whitespace character.
|
||||
OnC0 func (C0)
|
||||
|
||||
// OnC1 is called when a C1 escape sequence is processed.
|
||||
OnC1 func (C1)
|
||||
|
||||
// OnDCS is called when a device control string is processed.
|
||||
OnDCS func (string)
|
||||
|
||||
// OnCSI is called when a non-SGR CSI escape sequence with no parameters
|
||||
// is processed.
|
||||
OnCSI func (CSI)
|
||||
|
||||
// OnSGR is called when a CSI SGR escape sequence with no parameters is
|
||||
// processed.
|
||||
OnSGR func (SGR)
|
||||
|
||||
// OnPM is called when a privacy message is processed.
|
||||
OnPM func (string)
|
||||
|
||||
// OnAPC is called when an application program command is processed.
|
||||
OnAPC func (string)
|
||||
|
||||
// Non-SGR CSI sequences with parameters:
|
||||
OnCursorUp func (distance int)
|
||||
OnCursorDown func (distance int)
|
||||
OnCursorForward func (distance int)
|
||||
OnCursorBack func (distance int)
|
||||
OnCursorNextLine func (distance int)
|
||||
OnCursorPreviousLine func (distance int)
|
||||
OnCursorHorizontalAbsolute func (column int)
|
||||
OnCursorPosition func (column, row int)
|
||||
OnEraseInDisplay func (mode int)
|
||||
OnEraseInLine func (mode int)
|
||||
OnScrollUp func (distance int)
|
||||
OnScrollDown func (distance int)
|
||||
OnHorizontalVerticalPosition func (column, row int)
|
||||
|
||||
// SGR CSI sequences with parameters:
|
||||
OnForegroundColor func (Color)
|
||||
OnForegroundColorTrue func (color.RGBA)
|
||||
OnBackgroundColor func (Color)
|
||||
OnBackgroundColorTrue func (color.RGBA)
|
||||
OnUnderlineColor func (Color)
|
||||
OnUnderlineColorTrue func (color.RGBA)
|
||||
|
||||
// OSC sequences from XTerm:
|
||||
OnWindowTitle func (title string)
|
||||
OnIconName func (name string)
|
||||
OnIconFile func (path string)
|
||||
OnXProperty func (property, value string)
|
||||
OnSelectionPut func (selection, text string)
|
||||
OnSelectionGet func (selection string)
|
||||
OnQueryAllowed func ()
|
||||
OnQueryDisallowed func ()
|
||||
|
||||
// OSC sequences from iTerm2:
|
||||
OnCursorShape func (shape int)
|
||||
OnHyperlink func (params map[string] string, text, link string)
|
||||
OnBackgroundImage func (path string)
|
||||
|
||||
state decodeState
|
||||
expectingST bool
|
||||
gathered []byte
|
||||
}
|
||||
|
||||
type decodeState int; const (
|
||||
decodeStateText decodeState = iota
|
||||
decodeStateAwaitC1
|
||||
|
||||
decodeStateGatherDCS
|
||||
decodeStateGatherSOS
|
||||
decodeStateGatherCSI
|
||||
decodeStateGatherOSC
|
||||
decodeStateGatherPM
|
||||
decodeStateGatherAPC
|
||||
)
|
||||
|
||||
func (decoder *Decoder) Write (buffer []byte) (wrote int, err error) {
|
||||
wrote = len(buffer)
|
||||
|
||||
for len(buffer) > 0 {
|
||||
switch decoder.state {
|
||||
case decodeStateText:
|
||||
if C0_Escape.Is(buffer[0]) {
|
||||
// begin C1 control code
|
||||
decoder.state = decodeStateAwaitC1
|
||||
buffer = buffer[1:]
|
||||
|
||||
} else if buffer[0] < ' ' {
|
||||
// process C0 control code
|
||||
if decoder.OnC0 != nil {
|
||||
decoder.OnC0(C0(buffer[0]))
|
||||
}
|
||||
buffer = buffer[1:]
|
||||
|
||||
} else {
|
||||
// process as much plain text as we can
|
||||
buffer = decoder.processString(buffer)
|
||||
}
|
||||
|
||||
case decodeStateAwaitC1:
|
||||
if buffer[0] < 128 {
|
||||
// false alarm, this is just a C0 escape
|
||||
if decoder.OnC0 != nil {
|
||||
decoder.OnC0(C0_Escape)
|
||||
}
|
||||
break
|
||||
}
|
||||
|
||||
switch C1(buffer[0]) {
|
||||
case C1_DeviceControlString:
|
||||
decoder.state = decodeStateGatherDCS
|
||||
case C1_StartOfString:
|
||||
decoder.state = decodeStateGatherSOS
|
||||
case C1_ControlSequenceIntroducer:
|
||||
decoder.state = decodeStateGatherCSI
|
||||
case C1_OperatingSystemCommand:
|
||||
decoder.state = decodeStateGatherOSC
|
||||
case C1_PrivacyMessage:
|
||||
decoder.state = decodeStateGatherPM
|
||||
case C1_ApplicationProgramCommand:
|
||||
decoder.state = decodeStateGatherAPC
|
||||
default:
|
||||
// process C1 control code
|
||||
if decoder.OnC1 != nil {
|
||||
decoder.OnC1(C1(buffer[0]))
|
||||
}
|
||||
}
|
||||
buffer = buffer[1:]
|
||||
|
||||
case
|
||||
decodeStateGatherDCS,
|
||||
decodeStateGatherSOS,
|
||||
decodeStateGatherOSC,
|
||||
decodeStateGatherPM,
|
||||
decodeStateGatherAPC:
|
||||
|
||||
if decoder.expectingST && C1_StringTerminator.Is(buffer[0]) {
|
||||
// remove the trailing ESC
|
||||
decoder.gathered = decoder.gathered [
|
||||
:len(decoder.gathered) - 1]
|
||||
|
||||
if decoder.state == decodeStateGatherOSC {
|
||||
// we understand some OSC codes so we
|
||||
// handle them differently
|
||||
decoder.processOSC()
|
||||
} else {
|
||||
// generic handler for uncommon stuff
|
||||
decoder.processGeneric()
|
||||
}
|
||||
decoder.state = decodeStateText
|
||||
}
|
||||
if C0_Escape.Is(buffer[0]) {
|
||||
decoder.expectingST = true
|
||||
}
|
||||
|
||||
case decodeStateGatherCSI:
|
||||
decoder.gather(buffer[0])
|
||||
if buffer[0] < 0x30 || buffer[0] > 0x3F {
|
||||
decoder.processCSI()
|
||||
decoder.state = decodeStateText
|
||||
}
|
||||
buffer = buffer[1:]
|
||||
}
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func (decoder *Decoder) gather (character byte) {
|
||||
decoder.gathered = append(decoder.gathered, character)
|
||||
}
|
||||
|
||||
func (decoder *Decoder) processString (buffer []byte) []byte {
|
||||
for index, char := range buffer {
|
||||
if C0_Escape.Is(char) {
|
||||
if decoder.OnText != nil {
|
||||
decoder.OnText(string(buffer[:index]))
|
||||
}
|
||||
return buffer[:index]
|
||||
}
|
||||
}
|
||||
return buffer
|
||||
}
|
||||
|
||||
func (decoder *Decoder) processGeneric () {
|
||||
parameter := string(decoder.gathered)
|
||||
switch decoder.state {
|
||||
case decodeStateGatherDCS:
|
||||
if decoder.OnDCS != nil { decoder.OnDCS(parameter) }
|
||||
case decodeStateGatherSOS:
|
||||
if decoder.OnText != nil { decoder.OnText(parameter) }
|
||||
case decodeStateGatherPM:
|
||||
if decoder.OnPM != nil { decoder.OnPM(parameter) }
|
||||
case decodeStateGatherAPC:
|
||||
if decoder.OnAPC != nil { decoder.OnAPC(parameter) }
|
||||
}
|
||||
}
|
||||
|
||||
func (decoder *Decoder) processOSC () {
|
||||
// TODO: analyze OSC
|
||||
}
|
||||
|
||||
func (decoder *Decoder) processCSI () {
|
||||
if len(decoder.gathered) < 2 { return }
|
||||
parameters := ParameterInts(decoder.gathered)
|
||||
|
||||
var p0, p1, p2, p3 int
|
||||
if len(parameters) > 0 { p0 = parameters[0] }
|
||||
if len(parameters) > 1 { p1 = parameters[1] }
|
||||
if len(parameters) > 2 { p2 = parameters[2] }
|
||||
if len(parameters) > 3 { p3 = parameters[3] }
|
||||
|
||||
switch Last(decoder.gathered) {
|
||||
case 'A': if decoder.OnCursorUp != nil { decoder.OnCursorUp(clampOne(p0)) }
|
||||
case 'B': if decoder.OnCursorDown != nil { decoder.OnCursorDown(clampOne(p0)) }
|
||||
case 'C': if decoder.OnCursorForward != nil { decoder.OnCursorForward(clampOne(p0)) }
|
||||
case 'D': if decoder.OnCursorBack != nil { decoder.OnCursorBack(clampOne(p0)) }
|
||||
case 'E': if decoder.OnCursorNextLine != nil { decoder.OnCursorNextLine(clampOne(p0)) }
|
||||
case 'F': if decoder.OnCursorPreviousLine != nil { decoder.OnCursorPreviousLine(clampOne(p0)) }
|
||||
case 'G': if decoder.OnCursorHorizontalAbsolute != nil { decoder.OnCursorHorizontalAbsolute(clampOne(p0)) }
|
||||
case 'H', 'f': if decoder.OnCursorPosition != nil { decoder.OnCursorPosition(clampOne(p0), clampOne(p1)) }
|
||||
|
||||
case 'J': if decoder.OnEraseInDisplay != nil { decoder.OnEraseInDisplay(p0) }
|
||||
case 'K': if decoder.OnEraseInLine != nil { decoder.OnEraseInLine(p0) }
|
||||
case 'S': if decoder.OnScrollUp != nil { decoder.OnScrollUp(clampOne(p0)) }
|
||||
case 'T': if decoder.OnScrollDown != nil { decoder.OnScrollDown(clampOne(p0)) }
|
||||
|
||||
case 'm':
|
||||
p0 := SGR(p0)
|
||||
switch {
|
||||
case
|
||||
p0 >= SGR_ForegroundColorBlack &&
|
||||
p0 <= SGR_ForegroundColorWhite &&
|
||||
decoder.OnForegroundColor != nil :
|
||||
decoder.OnForegroundColor(Color(p0 - SGR_ForegroundColorBlack))
|
||||
case
|
||||
p0 >= SGR_ForegroundColorBrightBlack &&
|
||||
p0 <= SGR_ForegroundColorBrightWhite &&
|
||||
decoder.OnForegroundColor != nil :
|
||||
decoder.OnForegroundColor(Color(p0 - SGR_ForegroundColorBrightBlack + 8))
|
||||
|
||||
case p0 == SGR_ForegroundColor:
|
||||
switch p1 {
|
||||
case 2:
|
||||
if decoder.OnForegroundColor == nil { break }
|
||||
decoder.OnForegroundColor(Color(p1))
|
||||
case 5:
|
||||
if decoder.OnForegroundColorTrue == nil { break }
|
||||
decoder.OnForegroundColorTrue (color.RGBA {
|
||||
R: uint8(p1),
|
||||
G: uint8(p2),
|
||||
B: uint8(p3),
|
||||
A: 0xFF,
|
||||
})
|
||||
}
|
||||
|
||||
case
|
||||
p0 >= SGR_BackgroundColorBlack &&
|
||||
p0 <= SGR_BackgroundColorWhite &&
|
||||
decoder.OnBackgroundColor != nil :
|
||||
decoder.OnBackgroundColor(Color(p0 - SGR_BackgroundColorBlack))
|
||||
case
|
||||
p0 >= SGR_BackgroundColorBrightBlack &&
|
||||
p0 <= SGR_BackgroundColorBrightWhite &&
|
||||
decoder.OnBackgroundColor != nil :
|
||||
decoder.OnBackgroundColor(Color(p0 - SGR_BackgroundColorBrightBlack + 8))
|
||||
|
||||
case p0 == SGR_BackgroundColor:
|
||||
switch p1 {
|
||||
case 2:
|
||||
if decoder.OnBackgroundColor == nil { break }
|
||||
decoder.OnBackgroundColor(Color(p1))
|
||||
case 5:
|
||||
if decoder.OnBackgroundColorTrue == nil { break }
|
||||
decoder.OnBackgroundColorTrue (color.RGBA {
|
||||
R: uint8(p1),
|
||||
G: uint8(p2),
|
||||
B: uint8(p3),
|
||||
A: 0xFF,
|
||||
})
|
||||
}
|
||||
|
||||
case p0 == SGR_UnderlineColor:
|
||||
switch p1 {
|
||||
case 2:
|
||||
if decoder.OnUnderlineColor == nil { break }
|
||||
decoder.OnUnderlineColor(Color(p1))
|
||||
case 5:
|
||||
if decoder.OnUnderlineColorTrue == nil { break }
|
||||
decoder.OnUnderlineColorTrue (color.RGBA {
|
||||
R: uint8(p1),
|
||||
G: uint8(p2),
|
||||
B: uint8(p3),
|
||||
A: 0xFF,
|
||||
})
|
||||
}
|
||||
|
||||
default: if decoder.OnSGR != nil { decoder.OnSGR(SGR(p0)) }
|
||||
}
|
||||
|
||||
// TODO
|
||||
case 'n':
|
||||
case 's':
|
||||
case 'u':
|
||||
case 'h':
|
||||
case 'l':
|
||||
}
|
||||
}
|
||||
|
||||
func clampOne (number int) int {
|
||||
if number < 1 {
|
||||
return 1
|
||||
} else {
|
||||
return number
|
||||
}
|
||||
}
|
||||
|
||||
// Last returns the last item of a slice.
|
||||
func Last[T any] (source []T) T {
|
||||
return source[len(source) - 1]
|
||||
}
|
||||
|
||||
// ParameterStrings separates a byte slice by semicolons into a list of strings.
|
||||
func ParameterStrings (source []byte) (parameters []string) {
|
||||
parameters = strings.Split(string(source), ";")
|
||||
for index := range parameters {
|
||||
parameters[index] = strings.TrimSpace(parameters[index])
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// ParameterInts is like ParameterStrings, but returns integers instead of
|
||||
// strings. If a parameter is empty or cannot be converted into an integer, that
|
||||
// parameter will be zero.
|
||||
func ParameterInts (source []byte) (parameters []int) {
|
||||
stringParameters := ParameterStrings(source)
|
||||
parameters = make([]int, len(stringParameters))
|
||||
for index, parameter := range stringParameters {
|
||||
parameters[index], _ = strconv.Atoi(parameter)
|
||||
}
|
||||
return
|
||||
}
|
|
@ -0,0 +1,97 @@
|
|||
package ansi
|
||||
|
||||
// SGR represents a list of Select Graphic Rendition parameters.
|
||||
type SGR int; const (
|
||||
SGR_Normal SGR = iota
|
||||
SGR_Bold
|
||||
SGR_Dim
|
||||
SGR_Italic
|
||||
SGR_Underline
|
||||
SGR_SlowBlink
|
||||
SGR_RapidBlink
|
||||
SGR_Reverse
|
||||
SGR_Conceal
|
||||
SGR_Strike
|
||||
|
||||
SGR_FontPrimary
|
||||
SGR_Font1
|
||||
SGR_Font2
|
||||
SGR_Font3
|
||||
SGR_Font4
|
||||
SGR_Font5
|
||||
SGR_Font6
|
||||
SGR_Font7
|
||||
SGR_Font8
|
||||
SGR_Font9
|
||||
SGR_FontFraktur
|
||||
|
||||
SGR_DoubleUnderline
|
||||
SGR_NormalIntensity
|
||||
SGR_NeitherItalicNorBlackletter
|
||||
SGR_NotUnderlined
|
||||
SGR_NotBlinking
|
||||
SGR_PorportionalSpacing
|
||||
SGR_NotReversed
|
||||
SGR_NotCrossedOut
|
||||
|
||||
SGR_ForegroundColorBlack
|
||||
SGR_ForegroundColorRed
|
||||
SGR_ForegroundColorGreen
|
||||
SGR_ForegroundColorYellow
|
||||
SGR_ForegroundColorBlue
|
||||
SGR_ForegroundColorMagenta
|
||||
SGR_ForegroundColorCyan
|
||||
SGR_ForegroundColorWhite
|
||||
SGR_ForegroundColor
|
||||
SGR_ForegroundColorDefault
|
||||
|
||||
SGR_BackgroundColorBlack
|
||||
SGR_BackgroundColorRed
|
||||
SGR_BackgroundColorGreen
|
||||
SGR_BackgroundColorYellow
|
||||
SGR_BackgroundColorBlue
|
||||
SGR_BackgroundColorMagenta
|
||||
SGR_BackgroundColorCyan
|
||||
SGR_BackgroundColorWhite
|
||||
SGR_BackgroundColor
|
||||
SGR_BackgroundColorDefault
|
||||
|
||||
SGR_DisablePorportionalSpacing
|
||||
SGR_Framed
|
||||
SGR_Encircled
|
||||
SGR_Overlined
|
||||
SGR_NeitherFramedNorEncircled
|
||||
SGR_NotOverlined
|
||||
|
||||
SGR_UnderlineColor
|
||||
SGR_UnderlineColorDefault
|
||||
|
||||
SGR_IdeogramUnderline
|
||||
SGR_IdeogramDoubleUnderline
|
||||
SGR_IdeogramOverline
|
||||
SGR_IdeogramDoubleOverline
|
||||
SGR_IdeogramStressMarking
|
||||
SGR_NoIdeogramAttributes
|
||||
|
||||
SGR_Superscript
|
||||
SGR_Subscript
|
||||
SGR_NeitherSuperscriptNorSubscript
|
||||
|
||||
SGR_ForegroundColorBrightBlack
|
||||
SGR_ForegroundColorBrightRed
|
||||
SGR_ForegroundColorBrightGreen
|
||||
SGR_ForegroundColorBrightYellow
|
||||
SGR_ForegroundColorBrightBlue
|
||||
SGR_ForegroundColorBrightMagenta
|
||||
SGR_ForegroundColorBrightCyan
|
||||
SGR_ForegroundColorBrightWhite
|
||||
|
||||
SGR_BackgroundColorBrightBlack
|
||||
SGR_BackgroundColorBrightRed
|
||||
SGR_BackgroundColorBrightGreen
|
||||
SGR_BackgroundColorBrightYellow
|
||||
SGR_BackgroundColorBrightBlue
|
||||
SGR_BackgroundColorBrightMagenta
|
||||
SGR_BackgroundColorBrightCyan
|
||||
SGR_BackgroundColorBrightWhite
|
||||
)
|
|
@ -0,0 +1,167 @@
|
|||
package elements
|
||||
|
||||
import "image"
|
||||
import "golang.org/x/image/font"
|
||||
import "git.tebibyte.media/sashakoshka/tomo"
|
||||
import "git.tebibyte.media/sashakoshka/tomo/input"
|
||||
import "git.tebibyte.media/sashakoshka/tomo/default/theme"
|
||||
import "git.tebibyte.media/sashakoshka/tomo/default/config"
|
||||
// import "git.tebibyte.media/sashakoshka/tomo/textdraw"
|
||||
import "git.tebibyte.media/sashakoshka/tomo/elements/core"
|
||||
|
||||
type gridCell struct {
|
||||
rune
|
||||
tomo.FontStyle
|
||||
background tomo.Color
|
||||
foreground tomo.Color
|
||||
clean bool
|
||||
}
|
||||
|
||||
func (cell *gridCell) initColor () {
|
||||
cell.background = tomo.ColorBackground
|
||||
cell.foreground = tomo.ColorForeground
|
||||
}
|
||||
|
||||
type gridBuffer struct {
|
||||
cells []gridCell
|
||||
stride int
|
||||
}
|
||||
|
||||
// Grid is an array of monospaced character cells. Each one has a foreground and
|
||||
// background color. It satisfies io.Writer and can be fed text with ANSI escape
|
||||
// codes.
|
||||
type Grid struct {
|
||||
*core.Core
|
||||
*core.FocusableCore
|
||||
core core.CoreControl
|
||||
|
||||
cells []gridCell
|
||||
stride int
|
||||
cellWidth int
|
||||
cellHeight int
|
||||
|
||||
cursor image.Point
|
||||
|
||||
face font.Face
|
||||
config config.Wrapped
|
||||
theme theme.Wrapped
|
||||
|
||||
onResize func ()
|
||||
}
|
||||
|
||||
func NewGrid () (element *Grid) {
|
||||
element = &Grid { }
|
||||
element.theme.Case = tomo.C("tomo", "grid")
|
||||
element.Core, element.core = core.NewCore(element, element.drawAndPush)
|
||||
element.updateFont()
|
||||
element.updateMinimumSize()
|
||||
return
|
||||
}
|
||||
|
||||
func (element *Grid) OnResize (callback func ()) {
|
||||
element.onResize = callback
|
||||
}
|
||||
|
||||
func (element *Grid) Write (data []byte) (wrote int, err error) {
|
||||
// TODO process ansi escape codes etx
|
||||
}
|
||||
|
||||
func (element *Grid) HandleMouseDown (x, y int, button input.Button) {
|
||||
|
||||
}
|
||||
|
||||
func (element *Grid) HandleMouseUp (x, y int, button input.Button) {
|
||||
|
||||
}
|
||||
|
||||
func (element *Grid) HandleKeyDown (key input.Key, modifiers input.Modifiers) {
|
||||
// TODO we need to grab shift ctrl c for copying text
|
||||
}
|
||||
|
||||
func (element *Grid) HandleKeyUp(key input.Key, modifiers input.Modifiers) { }
|
||||
|
||||
// SetTheme sets the element's theme.
|
||||
func (element *Grid) SetTheme (new tomo.Theme) {
|
||||
if new == element.theme.Theme { return }
|
||||
element.theme.Theme = new
|
||||
element.updateFont()
|
||||
element.updateMinimumSize()
|
||||
element.drawAndPush()
|
||||
}
|
||||
|
||||
// SetConfig sets the element's configuration.
|
||||
func (element *Grid) SetConfig (new tomo.Config) {
|
||||
if new == element.config.Config { return }
|
||||
element.config.Config = new
|
||||
element.updateMinimumSize()
|
||||
element.drawAndPush()
|
||||
}
|
||||
|
||||
func (element *Grid) alloc () bool {
|
||||
bounds := element.Bounds()
|
||||
width := bounds.Dx() / element.cellWidth
|
||||
height := bounds.Dy() / element.cellHeight
|
||||
unchanged :=
|
||||
width == element.stride &&
|
||||
height == len(element.cells) / element.stride
|
||||
if unchanged { return false }
|
||||
|
||||
oldCells := element.cells
|
||||
oldWidth := element.stride
|
||||
oldHeight := len(element.cells) / element.stride
|
||||
heightLarger := height < oldHeight
|
||||
|
||||
element.stride = width
|
||||
element.cells = make([]gridCell, width * height)
|
||||
|
||||
// TODO: attempt to wrap text?
|
||||
|
||||
if heightLarger {
|
||||
for index := range element.cells[oldHeight * width:] {
|
||||
element.cells[index].initColor()
|
||||
}}
|
||||
|
||||
commonHeight := height
|
||||
if heightLarger { commonHeight = oldHeight }
|
||||
for index := range element.cells[:commonHeight * width] {
|
||||
x := index % width
|
||||
if x < oldWidth {
|
||||
element.cells[index] = oldCells[x + index / oldWidth]
|
||||
} else {
|
||||
element.cells[index].initColor()
|
||||
}
|
||||
}
|
||||
|
||||
if element.onResize != nil { element.onResize() }
|
||||
return true
|
||||
}
|
||||
|
||||
func (element *Grid) updateFont () {
|
||||
element.face = element.theme.FontFace (
|
||||
tomo.FontStyleMonospace,
|
||||
tomo.FontSizeNormal)
|
||||
emSpace, _ := element.face.GlyphAdvance('M')
|
||||
metrics := element.face.Metrics()
|
||||
element.cellWidth = emSpace.Round()
|
||||
element.cellHeight = metrics.Height.Round()
|
||||
}
|
||||
|
||||
func (element *Grid) updateMinimumSize () {
|
||||
element.core.SetMinimumSize(element.cellWidth, element.cellHeight)
|
||||
}
|
||||
|
||||
func (element *Grid) state () tomo.State {
|
||||
return tomo.State {
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
func (element *Grid) drawAndPush () {
|
||||
if element.core.HasImage () {
|
||||
element.core.DamageRegion(element.draw(true))
|
||||
}
|
||||
}
|
||||
|
||||
func (element *Grid) draw (force bool) image.Rectangle {
|
||||
|
||||
}
|
Loading…
Reference in New Issue