crashtest-r0ket/firmware/basic/stringin.c

117 lines
2.9 KiB
C

#include <string.h>
#include "basic/basic.h"
#include "lcd/render.h"
#include "lcd/display.h"
#include "lcd/print.h"
#define CHARWIDTH 12
#define CHARSPACE 0x20
struct in{
char *line, *prompt;
uint8_t pos, dcursor, maxlength, asciistart, asciiend;
bool done;
} s_input;
static void inputInit(char p[],char s[], uint8_t l, uint8_t as, uint8_t ae) {
//TODO: Check length!
s_input.prompt = p;
s_input.line = s;
s_input.maxlength = l;
s_input.asciistart = as;
s_input.asciiend = ae;
s_input.pos = 0;
s_input.dcursor = 0;
s_input.done = false;
s[l-1]=0;
for(int i=strlen(s);i<(l-1);i++)
s[i]=0;
}
static void inputMove() {
char *cur = s_input.line+s_input.pos+s_input.dcursor;
switch(getInputWaitRepeat()){
case BTN_LEFT:
if (s_input.dcursor >0) {
s_input.dcursor --;
} else if (s_input.pos > 0) {
s_input.pos --;
}
break;
case BTN_RIGHT:
if (s_input.dcursor <RESX/CHARWIDTH-1 && s_input.pos + s_input.dcursor < s_input.maxlength) {
if (*cur == 0) {
*cur = CHARSPACE;
}
s_input.dcursor ++;
} else if (s_input.pos + RESX/CHARWIDTH < s_input.maxlength) {
s_input.pos++;
if (*cur == 0) {
*cur = CHARSPACE;
}
}
break;
case BTN_UP:
if (*cur <= s_input.asciistart) {
*cur = s_input.asciiend;
} else if (*cur > s_input.asciiend) {
*cur = s_input.asciiend;
} else {
*cur = *cur - 1;
}
break;
case BTN_DOWN:
if (*cur >= s_input.asciiend) {
*cur = s_input.asciistart;
} else if (*cur < s_input.asciistart) {
*cur = s_input.asciistart;
} else {
*cur = *cur + 1;
}
break;
case BTN_ENTER:
s_input.done = true;
// getInputWaitRelease();
break;
}
}
static void inputDraw() {
char tmp[2]= {0,0};
lcdClear();
DoString(0,0,s_input.prompt);
for (int dx = 0; dx<= RESX/CHARWIDTH && s_input.pos+dx<s_input.maxlength; dx++){
tmp[0] = s_input.line[s_input.pos+dx];
DoString(dx*CHARWIDTH, 30,tmp);
}
DoString(s_input.dcursor * CHARWIDTH, 40, "-");
}
static void inputClean() {
for (int x=0;x<=s_input.maxlength;x++) {
if (s_input.line[x] == 0) {
x--;
while (s_input.line[x] == CHARSPACE && x>=0) {
s_input.line[x] = 0;
x--;
}
return;
}
}
}
void input(char prompt[], char line[], uint8_t asciistart, uint8_t asciiend, uint8_t maxlength){
setSystemFont();
inputInit(prompt, line, maxlength, asciistart, asciiend);
while (!s_input.done) {
inputDraw();
lcdDisplay();
inputMove();
}
inputClean();
return;
}