mirror of
https://github.com/whscullin/apple2js.git
synced 2024-01-12 14:14:38 +00:00
f5ad2cca16
This change adds a download link to the printer dialog. The contents
of the download will be the raw bytes written to the parallel
interface. Note that often these bytes will have the high-bit set
causing the contents to look like gibberish.
However, this is extremely handy because it allows one to turn the
printer output into a PDF:
1. In Appleworks (for example) configure an Apple ImageWriter in slot
1 and print a file.
2. Download the printer output.
3. Download the header file from https://github.com/AppleWin/AppleWin/files/1168047/ImageWriterEmulator-NoLF.ps.txt
4. In Linux, run:
```shell
$ cat ImageWriterEmulator-NoLF.ps.txt raw_printer_output.bin | ps2pdf - printer_output.pdf
```
Note that the parallel port emulation in apple2js does not yet support
Print Shop, so I haven't been able to test that out.
87 lines
2.7 KiB
JavaScript
87 lines
2.7 KiB
JavaScript
/* Copyright 2010-2019 Will Scullin <scullin@scullinsteel.com>
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software and its
|
|
* documentation for any purpose is hereby granted without fee, provided that
|
|
* the above copyright notice appear in all copies and that both that
|
|
* copyright notice and this permission notice appear in supporting
|
|
* documentation. No representations are made about the suitability of this
|
|
* software for any purpose. It is provided "as is" without express or
|
|
* implied warranty.
|
|
*/
|
|
|
|
/**
|
|
* Printer UI. The "paper" is bound to the element selected by the input.
|
|
*
|
|
* Every line that is output to the printer is added as a <div> to the paper.
|
|
* The high bit of all characters is stripped and only visible characters are
|
|
* added to the output. The following characters receive special treatment:
|
|
*
|
|
* * `EOT` (ASCII 4): deletes last character
|
|
* * `HT` (ASCII 9): replaced with 8 spaces
|
|
* * `LF` (ASCII 10): silently removed
|
|
* * `CR` (ASCII 13): a newline and carriage return
|
|
*
|
|
* @param {string} el The selector of the element on which to bind the "paper".
|
|
*/
|
|
export default function Printer(el) {
|
|
var paper = document.querySelector(el);
|
|
var _lineBuffer = '';
|
|
var _line;
|
|
var _rawLen = 0;
|
|
var _raw = new Uint8Array(1024);
|
|
|
|
function newLine() {
|
|
_line = document.createElement('div');
|
|
_line.classList.add('line');
|
|
_line.innerText = _lineBuffer;
|
|
paper.append(_line);
|
|
_lineBuffer = '';
|
|
}
|
|
|
|
newLine();
|
|
|
|
return {
|
|
putChar: function(val) {
|
|
var ascii = val & 0x7f;
|
|
var visible = val >= 0x20;
|
|
var c = String.fromCharCode(ascii);
|
|
|
|
if (c === '\r') {
|
|
newLine();
|
|
} else if (c === '\n') {
|
|
// eat for now
|
|
} else if (c === '\t') {
|
|
_lineBuffer += ' ';
|
|
} else if (ascii === 0x04) {
|
|
_lineBuffer = _lineBuffer.slice(0, -1);
|
|
} else if (visible) {
|
|
_lineBuffer += c;
|
|
}
|
|
_line.innerText = _lineBuffer;
|
|
_raw[_rawLen] = val;
|
|
_rawLen++;
|
|
if (_rawLen > _raw.length) {
|
|
let newRaw = new Uint8Array(_raw.length * 2);
|
|
newRaw.set(_raw);
|
|
_raw = newRaw;
|
|
}
|
|
},
|
|
|
|
clear: function() {
|
|
_lineBuffer = '';
|
|
paper.innerHTML = "";
|
|
newLine();
|
|
_raw = new Uint8Array(1024);
|
|
_rawLen = 0;
|
|
},
|
|
|
|
hasPrintout: function() {
|
|
return paper.text.length;
|
|
},
|
|
|
|
getRawOutput: function() {
|
|
return _raw.slice(0, _rawLen);
|
|
}
|
|
};
|
|
}
|