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unleashed-firmware/applications/multi_converter/multi_converter_mode_display.c
MX 8323877120
formatted, attempt to fix rfid fuzzer crash 
crash doesn’t fixed with this commit
2022-09-03 23:10:07 +03:00

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#include "multi_converter_mode_display.h"
#define MULTI_CONVERTER_DISPLAY_KEYS 18 // [0] to [F] + [BACK] + [SELECT]
#define MULTI_CONVERTER_DISPLAY_KEY_NEGATIVE 0 // long press
#define MULTI_CONVERTER_DISPLAY_KEY_COMMA 1 // long press
#define MULTI_CONVERTER_DISPLAY_KEY_DEL 16
#define MULTI_CONVERTER_DISPLAY_KEY_SELECT 17
#define MULTI_CONVERTER_DISPLAY_CHAR_COMMA '.'
#define MULTI_CONVERTER_DISPLAY_CHAR_NEGATIVE '-'
#define MULTI_CONVERTER_DISPLAY_CHAR_DEL '<'
#define MULTI_CONVERTER_DISPLAY_CHAR_SELECT '#'
#define MULTI_CONVERTER_DISPLAY_CHAR_BLANK ' '
#define MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN 3
#define MULTI_CONVERTER_DISPLAY_KEY_CHAR_HEIGHT 8
void multi_converter_mode_display_convert(MultiConverterState* const multi_converter_state) {
// 1.- if origin == destination (in theory user won't be allowed to choose the same options, but it's kinda "valid"...)
// just copy buffer_orig to buffer_dest and that's it
if(multi_converter_state->unit_type_orig == multi_converter_state->unit_type_dest) {
memcpy(
multi_converter_state->buffer_dest,
multi_converter_state->buffer_orig,
MULTI_CONVERTER_NUMBER_DIGITS);
return;
}
// 2.- origin_buffer has not null functions
if(multi_converter_get_unit(multi_converter_state->unit_type_orig).convert_function == NULL ||
multi_converter_get_unit(multi_converter_state->unit_type_orig).allowed_function == NULL)
return;
// 3.- valid destination type (using allowed_destinations function)
if(!multi_converter_get_unit(multi_converter_state->unit_type_orig)
.allowed_function(multi_converter_state->unit_type_dest))
return;
multi_converter_get_unit(multi_converter_state->unit_type_orig)
.convert_function(multi_converter_state);
}
void multi_converter_mode_display_draw(
Canvas* const canvas,
const MultiConverterState* multi_converter_state) {
canvas_set_color(canvas, ColorBlack);
// ORIGIN
canvas_set_font(canvas, FontPrimary);
canvas_draw_str(
canvas, 2, 10, multi_converter_get_unit(multi_converter_state->unit_type_orig).mini_name);
canvas_set_font(canvas, FontPrimary);
canvas_draw_str(canvas, 2 + 30, 10, multi_converter_state->buffer_orig);
// DESTINATION
canvas_set_font(canvas, FontPrimary);
canvas_draw_str(
canvas,
2,
10 + 12,
multi_converter_get_unit(multi_converter_state->unit_type_dest).mini_name);
canvas_set_font(canvas, FontPrimary);
canvas_draw_str(canvas, 2 + 30, 10 + 12, multi_converter_state->buffer_dest);
// SEPARATOR_LINE
canvas_draw_line(canvas, 2, 25, 128 - 3, 25);
// KEYBOARD
uint8_t _x = 5;
uint8_t _y = 25 + 15; // line + 10
for(int i = 0; i < MULTI_CONVERTER_DISPLAY_KEYS; i++) {
char g;
if(i < 10)
g = (i + '0');
else if(i < 16)
g = ((i - 10) + 'A');
else if(i == MULTI_CONVERTER_DISPLAY_KEY_DEL)
g = MULTI_CONVERTER_DISPLAY_CHAR_DEL;
else
g = MULTI_CONVERTER_DISPLAY_CHAR_SELECT;
uint8_t g_w = canvas_glyph_width(canvas, g);
if(i < 16 &&
i > multi_converter_get_unit(multi_converter_state->unit_type_orig).max_number_keys -
1) {
// some units won't use the full [0] - [F] keyboard, in those situations just hide the char
// (won't be selectable anyway, so no worries here; this is just about drawing stuff)
g = MULTI_CONVERTER_DISPLAY_CHAR_BLANK;
}
// currently hover key is highlighted
if((multi_converter_state->display).key == i) {
canvas_draw_box(
canvas,
_x - MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN,
_y - (MULTI_CONVERTER_DISPLAY_KEY_CHAR_HEIGHT +
MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN),
MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN + g_w +
MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN,
MULTI_CONVERTER_DISPLAY_KEY_CHAR_HEIGHT +
MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN * 2);
canvas_set_color(canvas, ColorWhite);
} else {
canvas_draw_frame(
canvas,
_x - MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN,
_y - (MULTI_CONVERTER_DISPLAY_KEY_CHAR_HEIGHT +
MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN),
MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN + g_w +
MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN,
MULTI_CONVERTER_DISPLAY_KEY_CHAR_HEIGHT +
MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN * 2);
}
// draw key
canvas_draw_glyph(canvas, _x, _y, g);
// certain keys have long_press features, draw whatever they're using there too
if(i == MULTI_CONVERTER_DISPLAY_KEY_NEGATIVE) {
canvas_draw_box(
canvas,
_x + MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN + g_w - 4,
_y + MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN - 2,
4,
2);
} else if(i == MULTI_CONVERTER_DISPLAY_KEY_COMMA) {
canvas_draw_box(
canvas,
_x + MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN + g_w - 2,
_y + MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN - 2,
2,
2);
}
// back to black
canvas_set_color(canvas, ColorBlack);
if(i < 8) {
_x += g_w + MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN * 2 + 2;
} else if(i == 8) {
_y += (MULTI_CONVERTER_DISPLAY_KEY_CHAR_HEIGHT +
MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN * 2) +
3;
_x = 8; // some padding at the beginning on second line
} else {
_x += g_w + MULTI_CONVERTER_DISPLAY_KEY_FRAME_MARGIN * 2 + 1;
}
}
}
void multi_converter_mode_display_navigation(
InputKey key,
MultiConverterState* const multi_converter_state) {
// first move to keyboard position, then check if the ORIGIN allows that specific key, if not jump to the "closest one"
switch(key) {
default:
break;
case InputKeyUp:
case InputKeyDown:
if((multi_converter_state->display).key >= 9)
(multi_converter_state->display).key -= 9;
else
(multi_converter_state->display).key += 9;
break;
case InputKeyLeft:
case InputKeyRight:
(multi_converter_state->display).key += (key == InputKeyLeft ? -1 : 1);
if((multi_converter_state->display).key > MULTI_CONVERTER_DISPLAY_KEYS - 1)
(multi_converter_state->display).key = 0;
else if((multi_converter_state->display).key < 0)
(multi_converter_state->display).key = MULTI_CONVERTER_DISPLAY_KEYS - 1;
break;
}
// if destination key is disabled by max_number_keys, move to the closest one
// (this could be improved with more accurate keys movements, probably...)
if(multi_converter_get_unit(multi_converter_state->unit_type_orig).max_number_keys >= 16)
return; // weird, since this means "do not show any number on the keyboard, but just in case..."
int8_t i = -1;
if(key == InputKeyRight || key == InputKeyDown) i = 1;
while((multi_converter_state->display).key < 16 &&
(multi_converter_state->display).key >
multi_converter_get_unit(multi_converter_state->unit_type_orig).max_number_keys -
1) {
(multi_converter_state->display).key += i;
if((multi_converter_state->display).key > MULTI_CONVERTER_DISPLAY_KEYS - 1)
(multi_converter_state->display).key = 0;
else if((multi_converter_state->display).key < 0)
(multi_converter_state->display).key = MULTI_CONVERTER_DISPLAY_KEYS - 1;
}
}
void multi_converter_mode_display_reset(MultiConverterState* const multi_converter_state) {
// clean the buffers
for(int i = 0; i < MULTI_CONVERTER_NUMBER_DIGITS; i++) {
multi_converter_state->buffer_orig[i] = MULTI_CONVERTER_DISPLAY_CHAR_BLANK;
multi_converter_state->buffer_dest[i] = MULTI_CONVERTER_DISPLAY_CHAR_BLANK;
}
// reset the display flags and index
multi_converter_state->display.cursor = 0;
multi_converter_state->display.key = 0;
multi_converter_state->display.comma = 0;
multi_converter_state->display.negative = 0;
}
void multi_converter_mode_display_toggle_negative(
MultiConverterState* const multi_converter_state) {
if(multi_converter_get_unit(multi_converter_state->unit_type_orig).allow_negative) {
if(!(multi_converter_state->display).negative) {
// shift origin buffer one to right + add the "-" sign (last digit will be lost)
for(int i = MULTI_CONVERTER_NUMBER_DIGITS - 1; i > 0; i--) {
// we could avoid the blanks, but nevermind
multi_converter_state->buffer_orig[i] = multi_converter_state->buffer_orig[i - 1];
}
multi_converter_state->buffer_orig[0] = MULTI_CONVERTER_DISPLAY_CHAR_NEGATIVE;
// only increment cursor if we're not out of bound
if((multi_converter_state->display).cursor < MULTI_CONVERTER_NUMBER_DIGITS)
(multi_converter_state->display).cursor++;
} else {
// shift origin buffer one to left, append ' ' on the end
for(int i = 0; i < MULTI_CONVERTER_NUMBER_DIGITS - 1; i++) {
if(multi_converter_state->buffer_orig[i] == MULTI_CONVERTER_DISPLAY_CHAR_BLANK)
break;
multi_converter_state->buffer_orig[i] = multi_converter_state->buffer_orig[i + 1];
}
multi_converter_state->buffer_orig[MULTI_CONVERTER_NUMBER_DIGITS - 1] =
MULTI_CONVERTER_DISPLAY_CHAR_BLANK;
(multi_converter_state->display).cursor--;
}
// toggle flag
(multi_converter_state->display).negative ^= 1;
}
}
void multi_converter_mode_display_add_comma(MultiConverterState* const multi_converter_state) {
if(!multi_converter_get_unit(multi_converter_state->unit_type_orig).allow_comma ||
(multi_converter_state->display).comma || !(multi_converter_state->display).cursor ||
((multi_converter_state->display).cursor == (MULTI_CONVERTER_NUMBER_DIGITS - 1)))
return; // maybe not allowerd; or one comma already in place; also cannot add commas as first or last chars
// set flag to one
(multi_converter_state->display).comma = 1;
multi_converter_state->buffer_orig[(multi_converter_state->display).cursor] =
MULTI_CONVERTER_DISPLAY_CHAR_COMMA;
(multi_converter_state->display).cursor++;
}
void multi_converter_mode_display_add_number(MultiConverterState* const multi_converter_state) {
if((multi_converter_state->display).key >
multi_converter_get_unit(multi_converter_state->unit_type_orig).max_number_keys - 1)
return;
if((multi_converter_state->display).key < 10) {
multi_converter_state->buffer_orig[(multi_converter_state->display).cursor] =
(multi_converter_state->display).key + '0';
} else {
multi_converter_state->buffer_orig[(multi_converter_state->display).cursor] =
((multi_converter_state->display).key - 10) + 'A';
}
(multi_converter_state->display).cursor++;
}
MultiConverterModeTrigger multi_converter_mode_display_ok(
uint8_t long_press,
MultiConverterState* const multi_converter_state) {
if((multi_converter_state->display).key < MULTI_CONVERTER_DISPLAY_KEY_DEL) {
if((multi_converter_state->display).cursor >= MULTI_CONVERTER_NUMBER_DIGITS)
return None; // limit reached, ignore
// long press on 0 toggle NEGATIVE if allowed, on 1 adds COMMA if allowed
if(long_press) {
if((multi_converter_state->display).key == MULTI_CONVERTER_DISPLAY_KEY_NEGATIVE) {
// toggle negative
multi_converter_mode_display_toggle_negative(multi_converter_state);
} else if((multi_converter_state->display).key == MULTI_CONVERTER_DISPLAY_KEY_COMMA) {
// add comma
multi_converter_mode_display_add_comma(multi_converter_state);
}
} else {
// regular keys
multi_converter_mode_display_add_number(multi_converter_state);
}
multi_converter_mode_display_convert(multi_converter_state);
} else if((multi_converter_state->display).key == MULTI_CONVERTER_DISPLAY_KEY_DEL) {
if((multi_converter_state->display).cursor > 0) (multi_converter_state->display).cursor--;
if(multi_converter_state->buffer_orig[(multi_converter_state->display).cursor] ==
MULTI_CONVERTER_DISPLAY_CHAR_COMMA)
(multi_converter_state->display).comma = 0;
if(multi_converter_state->buffer_orig[(multi_converter_state->display).cursor] ==
MULTI_CONVERTER_DISPLAY_CHAR_NEGATIVE)
(multi_converter_state->display).negative = 0;
multi_converter_state->buffer_orig[(multi_converter_state->display).cursor] =
MULTI_CONVERTER_DISPLAY_CHAR_BLANK;
multi_converter_mode_display_convert(multi_converter_state);
} else { // MULTI_CONVERTER_DISPLAY_KEY_SELECT
return Reset;
}
return None;
}
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