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Added help screen

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Bobbi Webber-Manners 2020-07-18 00:03:27 -04:00
parent 8a5905908e
commit 860ee06a42
1 changed files with 63 additions and 19 deletions
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82
apps/edit.c
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@ -4,9 +4,12 @@
/////////////////////////////////////////////////////////////////////////////
// TODO: Bug when copying or moving text to earlier in doc
// TODO: Modify/extend keybindings to be more like Appleworks
// TODO: The code doesn't check for error cases when calling gap buffer
// functions.
// TODO: Add OA-F "Find" and OA-R "Replace" commands
// TODO: Add 'modified' flag and warning if quit with unsaved changes
// TODO: Add 'Rename' command (OA-N ?)
// TODO: Should be smarter about redrawing in when updating selection!!!
// TODO: Doesn't check for error cases when calling gap buffer functions
// TODO: Make use of 3K LC memory to allow bigger buffer. Aux mem???
#include <stdio.h>
#include <stdlib.h>
@ -21,23 +24,25 @@
#define CURSORROW 10 // Row cursor is initially shown on (if enough text)
#define PROMPT_ROW NROWS + 2 // Row where input prompt is shown
#define EOL '\r' // For ProDOS
#define EOL '\r' // For ProDOS
#define BELL 0x07
#define BACKSPACE 0x08
#define CURDOWN 0x0a
#define RETURN 0x0d
#define NORMAL 0x0e
#define INVERSE 0x0f
#define HOME 0x19
#define CLRLINE 0x1a
#define CLREOL 0x1d
#define DELETE 0x7f
#define BELL 0x07
#define BACKSPACE 0x08
#define CURDOWN 0x0a
#define RETURN 0x0d
#define NORMAL 0x0e
#define INVERSE 0x0f
#define NOMOUSETXT 0x1b
#define HOME 0x19
#define CLRLINE 0x1a
#define MOUSETXT 0x1b
#define CLREOL 0x1d
#define DELETE 0x7f
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
#define BUFSZ 20000
#define BUFSZ 19000
char gapbuf[BUFSZ];
uint16_t gapbegin = 0;
uint16_t gapend = BUFSZ - 1;
@ -54,12 +59,15 @@ uint8_t row, col;
uint8_t cursrow, curscol; // Cursor position is kept here by draw_screen()
uint8_t quit_to_email;
uint8_t quit_to_email; // If 1, launch EMAIL.SYSTEM on quit
uint8_t modified; // If 1, file contents have been modified
// The order of the cases matters!
enum selmode {SEL_NONE, SEL_COPY2, SEL_MOVE2, SEL_DEL, SEL_MOVE, SEL_COPY};
enum selmode mode;
char openapple[] = "\x0f\x1b""A\x18\x0e";
/*
* Return number of bytes of freespace in gapbuf
*/
@ -431,13 +439,13 @@ void draw_screen(void) {
revers(1);
if (strlen(filename)) {
printf("File:%s", filename);
for (startpos = 0; startpos < 74 - strlen(filename); ++startpos)
for (startpos = 0; startpos < 66 - strlen(filename); ++startpos)
putchar(' ');
} else {
printf(
"File:NONE ");
"File:NONE ");
}
revers(0);
printf("%s-? Help", openapple);
putchar(HOME);
gotoxy(curscol, cursrow);
@ -758,6 +766,38 @@ void page_up(void) {
break;
}
/*
* Help screen
*/
void help(void) {
cursor(0);
clrscr();
printf("EDITOR HELP\n\n");
printf(" %s-C Copy text (includes cut & paste)\n", openapple);
printf(" %s-D Delete text\n", openapple);
printf(" %s-F Find string\n", openapple);
printf(" %s-L Load file\n", openapple);
printf(" %s-M Move text (includes cut & paste)\n", openapple);
printf(" %s-N New file\n", openapple);
printf(" %s-Q Quit\n", openapple);
printf(" %s-R Replace string\n", openapple);
printf(" %s-S Save file\n", openapple);
printf(" [Return] Mark end of paragraph\n");
printf(" [Delete] Delete character left\n");
printf(" %s-[Delete] Delete character right\n", openapple);
printf(" Arrows Move the cursor\n");
printf(" %s-Up arrow Page up\n", openapple);
printf(" %s-Down arrow Page down\n", openapple);
printf(" %s-Left arrow Word left\n", openapple);
printf(" %s-Right arrow Word right\n", openapple);
printf(" %s-< Beginning of line\n", openapple);
printf(" %s-> End of line\n", openapple);
printf(" [Tab] Go to next tabstop\n");
printf(" %s-1 to %s-9 Beginning of file through end of file\n", openapple, openapple);
printf(" [Press Any Key]");
cgetc();
}
/*
* Load EMAIL.SYSTEM to $2000 and jump to it
* (This code is in language card space so it can't possibly be trashed)
@ -949,6 +989,10 @@ int edit(char *fname) {
update_after_delete_char_right();
}
break;
case 0x80 + '?': // OA-? "Help"
help();
draw_screen();
break;
case 0x0c: // Ctrl-L "REFRESH"
draw_screen();
break;