mirror of
https://github.com/ksherlock/TwoTerm.git
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git-svn-id: svn://qnap.local/TwoTerm/trunk@1893 5590a31f-7b70-45f8-8c82-aa3a8e5f4507
This commit is contained in:
Kelvin Sherlock
parent
786c120805
commit
e220e0a458
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@ -12,12 +12,19 @@
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#include "iGeometry.h"
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@interface GNOConsole : NSObject <Emulator>
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{
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unsigned _state;
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iPoint _dca;
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uint8_t _repeatChar;
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int _vp[4];
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#ifdef __cplusplus
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class ViewPort;
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ViewPort *_viewPort;
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#endif
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}
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349
GNOConsole.mm
349
GNOConsole.mm
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@ -17,6 +17,8 @@
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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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@ -58,6 +60,8 @@
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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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@ -119,10 +123,12 @@ enum {
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StateDCAX,
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StateDCAY,
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StateRepeatChar,
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StateRepeatCount,
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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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@ -149,6 +155,14 @@ enum {
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-(void)reset
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{
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_state = StateText;
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if (_viewPort)
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{
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delete _viewPort;
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_viewPort = NULL;
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}
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// set flags to plain text.
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}
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-(BOOL)resizable
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@ -163,6 +177,11 @@ enum {
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return ws;
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}
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-(void)dealloc
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{
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delete _viewPort;
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[super dealloc];
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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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@ -171,144 +190,132 @@ enum {
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{
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switch (c)
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{
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case CTRL('N'):
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//Set: inverse off, mousetext off.
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screen->setFlag(Screen::FlagNormal);
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break;
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case CTRL('O'):
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//Set: inverse on, mousetext off.
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screen->setFlag(Screen::FlagInverse);
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break;
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case CTRL('P'):
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//Set inverse off, mousetext on.
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screen->setFlag(Screen::FlagMouseText);
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break;
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case CTRL('H'):
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//Move cursor left one character.
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screen->decrementX();
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break;
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case CTRL('U'):
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//Move cursor right one character.
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screen->incrementX();
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break;
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case CTRL('K'):
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//Move cursor up one line.
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screen->decrementY();
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break;
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case CTRL('J'):
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//Move cursor down one line.
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//screen->incrementY();
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screen->lineFeed();
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break;
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case CTRL('I'):
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//Move cursor to next tab stop (every 8 chars).
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screen->tabTo((screen->x() + 8) & ~0x07);
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break;
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case CTRL('A'):
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//Move cursor to beginning of line.
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screen->setX(0);
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// set cursor to flashing block.
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break;
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case CTRL('B'):
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//Move cursor to end of line.
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screen->setX(screen->width() - 1);
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// set cursor to flashing underscore.
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break;
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case CTRL('X'):
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//Move cursor to upper-left corner.
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screen->setCursor(0, 0);
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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('^'):
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// CONTROL-^, X + 32, Y + 32
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//Position cursor to the X, Y coordinates.
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_state = StateDCAX;
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break;
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case CTRL('M'):
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//screen->lineFeed();
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screen->setX(0);
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break;
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case CTRL('D'):
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//Delete current character (under cursor).
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// TODO -- does this shift the rest of the row?
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screen->deletec();
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break;
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case CTRL('F'):
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//Insert space at cursor.
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screen->insertc(' ');
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break;
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case CTRL('Z'):
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//Delete current line.
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screen->removeLine(screen->y());
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break;
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case CTRL('V'):
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//Insert blank like.
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// TODO -- verify if the line is before or after the current line,
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// TODO -- verify if x/y change
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// TODO -- verify scrolling behavior.
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screen->addLine(screen->y());
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break;
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case CTRL('Y'):
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//Clear to end of line.
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screen->eraseLine();
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break;
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case CTRL('W'):
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//Clear to end of screen.
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screen->eraseScreen();
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break;
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case CTRL('L'):
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//Clear the screen (and home cursor)
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screen->setCursor(0, 0);
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screen->eraseScreen();
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break;
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case CTRL('E'):
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//Inquire if using ProTERM Special Emulation
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/*
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* When you send out [CONTROL-E] to a caller using ProTERM
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* Special, the caller’s ProTERM will send back [CONTROL-“]”]
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* (ASCII code 29). This allows a BBS to transparently
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* detect the use of PSE.
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*/
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output->write(29);
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// cursor on
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break;
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case CTRL('F'):
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//cursor off
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break;
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case CTRL('R'):
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//CONTROL-R, character, count
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//Display character, count times.
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/*
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* This allows a three character code to be used to display
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* multiple characters. For example, to display a window frame,
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* it is necessary to show the top and bottom borders which are
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* long lines of the same character (dashes, underlines, etc.).
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* To draw a 64-character line consisting of equal signs, send
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* [CONTROL-R = @] where “@” is the ASCII code for 64.
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*/
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_state = StateRepeatChar;
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break;
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case CTRL('G'):
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//Sound the Bell.
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NSBeep();
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break;
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case CTRL('T'):
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//Sound single/dual-tone for duration.
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/*
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* The tone command has two forms. The first invokes the single-tone
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* generator, which produces relatively pure tones. The second
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* invokes the dual-tone generator, which produces some rather
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* interesting sounds. The three parameters, tone1, tone2, and
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* duration, can all take values from 1 through 127. There is
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* currently no known translation between pitch/duration values
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* and actual frequencies/times.
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*/
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//NB - parsed but ignored, for now.
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_state = StateTone1;
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case CTRL('H'):
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// todo -- honor the viewport.
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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((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();
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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(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(Screen::EraseAll);
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screen->setCursor(0, 0, true, true);
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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(0, true);
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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
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break;
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case CTRL('R'):
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// delete line
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// TODO
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break;
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case CTRL('U'):
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// right arrow.
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screen->incrementX(true);
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break;
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case CTRL('V'):
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// scroll down 1 line.
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// TODO
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break;
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case CTRL('W'):
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// scroll up 1 line.
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// TODO
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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(0, 0, true, true);
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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(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(true);
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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(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(true);
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break;
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default:
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_state = StateText;
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break;
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case StateRepeatChar:
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_repeatChar = c;
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_state = StateRepeatCount;
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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 StateRepeatCount:
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for (unsigned i = 0; i < c; ++i)
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{
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screen->putc(_repeatChar);
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}
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_state = StateText;
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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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if (_vp[0] == 0 && _vp[1] == 80 && _vp[2] == 0 && _vp[3] == 24)
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{
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delete _viewPort;
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_viewPort = NULL;
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}
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else
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{
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if (!_viewPort) _viewPort = new ViewPort;
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_viewPort->frame = iRect(_vp[0], _vp[2], _vp[1] - _vp[0], _vp[3] - _vp[2]);
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_viewPort->flags.wrap = 1;
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_viewPort->flags.scroll = 1;
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}
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case StateTone1:
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_state = StateTone2;
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break;
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case StateTone2:
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// CONTROL-A indicates same as tone1.
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_state = StateToneDuration;
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break;
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case StateToneDuration:
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_state = StateText;
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break;
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}
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@ -382,15 +428,14 @@ enum {
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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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// backspace and left arrow use the same code, alas.
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case NSBackspaceCharacter:
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output->write(CTRL('H'));
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output->write(0x7f);
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break;
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case NSLeftArrowFunctionKey:
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