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git-svn-id: svn://qnap.local/TwoTerm/branches/frameless@3095 5590a31f-7b70-45f8-8c82-aa3a8e5f4507
500 lines
13 KiB
Plaintext
500 lines
13 KiB
Plaintext
//
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// GNOConsole.mm
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// 2Term
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//
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// Created by Kelvin Sherlock on 7/9/2010.
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// Copyright 2010 __MyCompanyName__. All rights reserved.
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//
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#include <sys/ttydefaults.h>
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#import "GNOConsole.h"
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#include "OutputChannel.h"
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#include "Screen.h"
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/*
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* The GNO Console Driver.
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* this was gleaned from the source code.
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*
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* 0x00 n/a
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* 0x01 ^A - enable overstrike mode (IODP_gInsertFlag = 0)
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* 0x02 ^B - enable insert mode (IODP_gInsertFlag = 1)
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* 0x03 ^C - setport (IODP_GotoFlag = 3)
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* 0x04 n/a
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* 0x05 ^E - turn on cursor
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* 0x06 ^F - turn off cursor
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* 0x07 ^G - beep
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* 0x08 ^H - left arrow
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* 0x09 ^I - tab
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* 0x0a ^J - Line Feed (checks IODP_Scroll)
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* 0x0b ^K - clear EOP ???? up arrow???
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* 0x0c ^L - form feed - clear screen
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* 0x0d ^M - carriage return cursor = left margin
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* 0x0e ^N - inverse off - invert flag &= 0x7fff
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* 0x0f ^O - inverse on - invert flag |= 0x8000
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* 0x10 n/a
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* 0x11 ^Q - insert line
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* 0x12 ^R - Delete Line
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* 0x13 n/a
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* 0x14 n/a
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* 0x15 ^U - right arrow
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* 0x16 ^V - scroll down 1 line
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* 0x17 ^W - scroll up 1 line
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* 0x18 ^X - mouse text off.
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* 0x19 ^Y - cursor home.
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* 0x1a ^Z - clear line
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* 0x1b ^[ - mouse text on (inv flag | 0x4000)
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* 0x1c ^\ - increment IODP_CH (kill?)
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* 0x1d ^] -clear EOL
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* 0x1e ^^ - goto xy (IODP_GotoFlag = 1)
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* 0x1f ^_ - up arrow
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*
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* mouse text only applies if mouse text and inverse are on.
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* set port - 0x03 '[' left-margin right-margin top-margin bottom-margin [any printable character]
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*/
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/*
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this was gleaned from the kernel reference manual.
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The new console driver supports all the features of the old 80-column Pascal firmware,
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and adds a few extensions, with one exception - the codes that switched between 40 and
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80 columns modes are not supported. It is not compatible with the GS/OS '.console'
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driver. The control codes supported are as follows:
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Hex ASCII Action
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01 CTRL-A set cursor to flashing block
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02 CTRL-B set cursor to flashing underscore
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03 CTRL-C Begin "Set Text Window" sequence
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05 CTRL-E Cursor on
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06 CTRL-F Cursor off
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07 CTRL-G Perform FlexBeep
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08 CTRL-H Move left one character
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09 CTRL-I Tab
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0A CTRL-J Move down a line
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0B CTRL-K Clear to EOP (end of screen)
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0C CTRL-L Clear screen, home cursor
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0D CTRL-M Move cursor to left edge of line
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0E CTRL-N Normal text
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0F CTRL-O Inverse text
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11 CTRL-Q Insert a blank line at the current cursor position
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12 CTRL-R Delete the line at the current cursor position.
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15 CTRL-U Move cursor right one character
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16 CTRL-V Scroll display down one line
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17 CTRL-W Scroll display up one line
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18 CTRL-X Normal text, mousetext off
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19 CTRL-Y Home cursor
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1A CTRL-Z Clear entire line
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1B CTRL-[ MouseText on
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1C CTRL-\ Move cursor one character to the right
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1D CTRL-] Clear to end of line
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1E CTRL-^ Goto XY
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1F CTRL-_ Move up one line
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(Note: the Apple IIgs Firmware Reference incorrectly has codes 05 and 06 reversed. The
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codes listed here are correct for both GNO/ME and the Apple IIgs 80-column firmware)
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The Set Text Window sequence (begun by a $03 code) works as follows:
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CTRL-C '[' LEFT RIGHT TOP BOTTOM
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CTRL-C is of course hex $03, and '[' is the open bracket character ($5B). TOP, BOTTOM,
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LEFT, and RIGHT are single-byte ASCII values that represent the margin settings. Values
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for TOP and BOTTOM range from 0 to 23; LEFT and RIGHT range from 0 to 79. TOP must be
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numerically less than BOTTOM; LEFT must be less than RIGHT. Any impossible settings are
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ignored, and defaults are used instead. The extra '[' in the sequence helps prevent the
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screen from becoming confused in the event that random data is printed to the screen.
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After a successful Set Text Window sequence, only the portion of the screen inside the
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'window' will be accessible, and only the window will scroll; any text outside the
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window is not affected.
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*/
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@implementation GNOConsole
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enum {
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StateText,
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StateDCAX,
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StateDCAY,
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StateSetPort1,
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StateSetPort2,
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StateSetPort3,
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StateSetPort4,
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StateSetPort5
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};
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+(void)load
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{
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[EmulatorManager registerClass: self];
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}
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+(NSString *)name
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{
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return @"GNO Console";
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}
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-(NSString *)name
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{
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return @"GNO Console";
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}
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-(const char *)termName
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{
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return "gno-console";
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}
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-(void)reset
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{
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_state = StateText;
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_textPort.frame = iRect(0, 0, 80, 24);
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_textPort.cursor = iPoint(0,0);
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_textPort.scroll = true;
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_textPort.advanceCursor = true;
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_textPort.leftMargin = TextPort::MarginWrap;
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_textPort.rightMargin = TextPort::MarginWrap;
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_cursorType = Screen::CursorTypeUnderscore;
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// set flags to plain text.
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}
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-(BOOL)resizable
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{
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return NO;
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}
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-(struct winsize)defaultSize
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{
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struct winsize ws = { 24, 80, 0, 0 };
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return ws;
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}
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-(void)initTerm: (struct termios *)term
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{
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// Control-U is used by the up-arrow key.
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term->c_cc[VKILL] = CTRL('X');
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}
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-(id)init
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{
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if ((self = [super init]))
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{
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[self reset];
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}
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return self;
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}
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-(void)processCharacter:(uint8_t)c screen:(Screen *)screen output:(OutputChannel *)output
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{
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if (_state == StateText)
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{
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switch (c)
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{
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case CTRL('A'):
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// set cursor to flashing block.
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_cursorType = Screen::CursorTypeBlock;
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screen->setCursorType((Screen::CursorType)_cursorType);
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break;
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case CTRL('B'):
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_cursorType = Screen::CursorTypeUnderscore;
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screen->setCursorType((Screen::CursorType)_cursorType);
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// set cursor to flashing underscore.
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break;
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case CTRL('C'):
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// begin set text window sequence
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_state = StateSetPort1;
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break;
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case CTRL('E'):
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// cursor on
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screen->setCursorType((Screen::CursorType)_cursorType);
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break;
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case CTRL('F'):
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//cursor off
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screen->setCursorType(Screen::CursorTypeNone);
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break;
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case CTRL('G'):
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NSBeep();
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break;
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case CTRL('H'):
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screen->decrementX(&_textPort);
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//screen->decrementX(true);
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break;
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case CTRL('I'):
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// tab
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screen->tabTo(&_textPort, (_textPort.cursor.x + 8) & ~0x07);
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//screen->tabTo((screen->x() + 8) & ~0x07);
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break;
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case CTRL('J'):
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// down 1 line.
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screen->lineFeed(&_textPort);
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break;
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case CTRL('K'):
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// clear to end of screen
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screen->erase(&_textPort, Screen::EraseAfterCursor);
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break;
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case CTRL('L'):
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// clear screen, go home.
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screen->erase(&_textPort, Screen::EraseAll);
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screen->setCursor(&_textPort, 0, 0);
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break;
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case CTRL('M'):
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// move to left edge.
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screen->setX(&_textPort, 0);
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break;
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case CTRL('N'):
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// normal text.
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screen->clearFlagBit(Screen::FlagInverse);
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break;
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case CTRL('O'):
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// inverse text.
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screen->setFlagBit(Screen::FlagInverse);
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break;
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case CTRL('Q'):
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// insert line.
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// TODO -- verify textPort
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screen->insertLine(&_textPort, _textPort.cursor.y);
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break;
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case CTRL('R'):
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// delete line
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// TODO -- verify textPort
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screen->deleteLine(&_textPort, _textPort.cursor.y);
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break;
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case CTRL('U'):
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// right arrow.
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screen->incrementX(&_textPort);
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break;
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case CTRL('V'):
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// scroll down 1 line.
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screen->insertLine(&_textPort, 0);
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break;
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case CTRL('W'):
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// scroll up 1 line.
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screen->deleteLine(&_textPort, 0);
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break;
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case CTRL('X'):
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//mouse text off
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screen->clearFlagBit(Screen::FlagMouseText);
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break;
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case CTRL('Y'):
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// cursor home
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screen->setCursor(&_textPort, 0, 0);
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break;
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case CTRL('Z'):
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// clear entire line
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screen->erase(&_textPort, Screen::EraseLineAll);
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break;
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case CTRL('['):
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// mouse text on
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// inverse must also be on.
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screen->setFlagBit(Screen::FlagMouseText);
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break;
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case CTRL('\\'):
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// move cursor 1 character to the right
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screen->incrementX(&_textPort);
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break;
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case CTRL(']'):
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// clear to end of line.
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screen->erase(&_textPort, Screen::EraseLineAfterCursor);
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break;
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case CTRL('^'):
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// goto x y
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_state = StateDCAX;
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break;
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case CTRL('_'):
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// move up 1 line
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screen->decrementY(&_textPort);
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break;
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default:
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if (c >= 0x20 && c < 0x7f)
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{
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screen->putc(&_textPort, c);
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}
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break;
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}
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return;
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}
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switch (_state)
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{
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case StateDCAX:
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_dca.x = c - 32;
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_state = StateDCAY;
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break;
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case StateDCAY:
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_dca.y = c - 32;
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screen->setCursor(&_textPort, _dca);
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_state = StateText;
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break;
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case StateSetPort1:
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// [
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if (c == '[')
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{
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_state++;
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}
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else
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{
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_state = StateText;
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}
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break;
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case StateSetPort2:
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// left
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_vp[0] = c - 32;
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_state++;
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break;
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case StateSetPort3:
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// right
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_vp[1] = c - 32;
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_state++;
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break;
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case StateSetPort4:
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// top
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_vp[2] = c - 32;
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_state++;
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break;
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case StateSetPort5:
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// bottom
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// and validation.
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_vp[3] = c - 32;
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_vp[0] = std::max(0, _vp[0]);
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_vp[2] = std::max(0, _vp[2]);
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_vp[1] = std::min(80, _vp[1]);
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_vp[3] = std::min(24, _vp[3]);
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if (_vp[1] <= _vp[0]) _vp[1] = 80;
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if (_vp[3] <= _vp[2]) _vp[3] = 24;
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_textPort.frame = iRect(_vp[0], _vp[2], _vp[1] - _vp[0], _vp[3] - _vp[2]);
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// move the cursor to the top left
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// gnome clamps the horizontal, doesn't adjust the vertical.
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screen->setCursor(&_textPort, iPoint(0,0));
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_state = StateText;
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}
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}
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-(void)keyDown:(NSEvent *)event screen:(Screen *)screen output:(OutputChannel *)output
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{
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NSEventModifierFlags flags = [event modifierFlags];
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NSString *chars = [event charactersIgnoringModifiers];
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NSUInteger length = [chars length];
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for (unsigned i = 0; i < length; ++i)
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{
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unichar uc = [chars characterAtIndex: i];
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switch (uc)
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{
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case NSEnterCharacter:
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output->write(CTRL('M'));
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break;
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/*
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case NSDeleteCharacter:
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output->write(0x7f);
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break;
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*/
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case NSBackspaceCharacter:
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output->write(0x7f);
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break;
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case NSLeftArrowFunctionKey:
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output->write(CTRL('H'));
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break;
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case NSRightArrowFunctionKey:
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output->write(CTRL('U'));
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break;
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case NSUpArrowFunctionKey:
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output->write(CTRL('K'));
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break;
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case NSDownArrowFunctionKey:
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output->write(CTRL('J'));
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break;
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default:
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if (uc <= 0x7f)
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{
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char c = uc;
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if (flags & (NSShiftKeyMask | NSAlphaShiftKeyMask))
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{
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c = toupper(c);
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}
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if (flags & NSControlKeyMask)
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c = CTRL(c);
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output->write(c);
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}
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break;
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}
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}
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}
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@end
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