96 lines
2.7 KiB
JavaScript
96 lines
2.7 KiB
JavaScript
//
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// Applesoft BASIC in Javascript
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// Printer (for copying output)
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//
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// Copyright (C) 2009-2011 Joshua Bell
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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function Printer(tty) {
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// For closures
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var self = this;
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// Create new window and document
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var w = window.open('about:blank', '_blank', 'width=500,height=400,status=0,location=0,menubar=0,toolbar=0');
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var body = w.document.getElementsByTagName('body')[0];
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body.style.fontFamily = 'Courier, Monospace';
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body.style.backgroundColor = '#ffffff';
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body.style.backgroundImage = "url('http://calormen.com/Star_Trek/ASCII/lpt.jpg')";
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body.style.color = '#000000';
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body.style.paddingLeft = '50px';
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var paper = w.document.createElement('div');
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paper.style.whiteSpace = 'pre';
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body.appendChild(paper);
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var tty_writeChar = tty.writeChar;
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tty.writeChar = function(c) {
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tty_writeChar(c);
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switch (c.charCodeAt(0)) {
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case 0:
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case 1:
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case 2:
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case 3:
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case 4: // DOS hook
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case 5:
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case 6:
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case 7: // (BEL) bell
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case 8: // (BS) backspace
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case 9:
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case 11: // (VT) clear EOS
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case 12: // (FF) clear
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case 14: // (SO) normal
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case 15: // (SI) inverse
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case 16:
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case 17: // (DC1) 40-column
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case 18: // (DC2) 80-column
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case 19: // (DC3) stop list
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case 20:
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case 21: // (NAK) quit (disable 80-col card)
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case 22: // (SYN) scroll
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case 23: // (ETB) scroll up
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case 24: // (CAN) disable mousetext
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case 25: // (EM) home
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case 26: // (SUB) clear line
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case 27: // (ESC) enable mousetext
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case 28: // (FS) forward space
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case 29: // (GS) clear EOL
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case 30: // (RS) gotoXY
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case 31:
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break;
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case 10: // (LF) line feed
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case 13: // (CR) return
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paper.appendChild(w.document.createTextNode('\n'));
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break;
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default:
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paper.appendChild(w.document.createTextNode(c));
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break;
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}
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paper.parentElement.scrollTop = paper.parentElement.scrollHeight;
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};
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w.onunload = function() {
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if (self.onclose) {
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self.onclose();
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}
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tty.writeChar = tty_writeChar;
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};
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}
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