/**
* Rendering of a variable number/char (single digit with
* up/down arrows above/below it).
*
* @param item should be an ITEM_TYPE_VARNUM
* @param selected if cursor should be on that particular digit
*/
void render_item_varnum(screen_item &item, bool selected) {
// Position on screen where to draw the digit
uint8_t x = item.val1;
uint8_t y = item.val2;
int len = strlen(item.text);
int colon_pos=-1;
// Text can be with this format:
// "NAME:char1,char2,char..." to let user select
// non-numeric values, we detect this below:
for(int n=0;n<len;n++) {
if(item.text[n] == ':') colon_pos=n;
}
bool nonnumeric = false;
char selitem[10][10];
// We have a non-numeric variable, initialize the
// possible values (comma-separated string following ":"
// in the item.text. For instance: "SIGN:-,+,"
if(colon_pos != -1) {
nonnumeric=true;
char current[10];
int current_pos=0;
int cselitem=0;
for(int n=colon_pos+1;n<len;n++) {
if(item.text[n] != ',') {
current[current_pos ] = item.text[n];
current[current_pos+1] = 0;
current_pos++;
} else {
strcpy(selitem[cselitem],current);
current_pos=0;
current[0]=0;
cselitem++;
}
}
}
// Retrieve the current value of this VARNUM
uint8_t val = get_item_state_varnum(item.text);
uint16_t color;
if(selected) color = 0xcccc; else color = FOREGROUND_COLOR;
display_draw_equtriangle(x,y,9,color);
display_draw_equtriangle_inv(x,y+33,9,color);
if(nonnumeric == false) {
display_draw_number(x-4,y+9,val,1,FOREGROUND_COLOR);
} else {
display_draw_text(x-4,y+9,selitem[val],FOREGROUND_COLOR);
}
}
void GUI::process_key_up() {
if(screens_layout[current_screen].items[selected_item].type == ITEM_TYPE_VARNUM) {
uint8_t current = get_item_state_varnum(screens_layout[current_screen].items[selected_item]);
int8_t val[1];
val[0] = current+1;
if(val[0] > 9) val[0] = 9;
update_item(screens_layout[current_screen].items[selected_item],val);
receive_gui_events.receive_gui_event("varnumchange",screens_layout[current_screen].items[selected_item].text);
return;
}
if(selected_item == 1) return;
last_selected_item = selected_item;
selected_item--;
}
void render_item_varnum(screen_item &item, bool selected) {
uint8_t x = item.val1;
uint8_t y = item.val2;
int len = strlen(item.text);
int colon_pos=-1;
for(int n=0;n<len;n++) {
if(item.text[n] == ':') colon_pos=n;
}
bool nonnumeric = false;
char selitem[10][10];
if(colon_pos != -1) {
nonnumeric=true;
char current[10];
int current_pos=0;
int cselitem=0;
for(int n=colon_pos+1;n<len;n++) {
if(item.text[n] != ',') {
current[current_pos ] = item.text[n];
current[current_pos+1] = 0;
current_pos++;
} else {
strcpy(selitem[cselitem],current);
current_pos=0;
current[0]=0;
cselitem++;
}
}
}
uint8_t val = get_item_state_varnum(item.text);
uint16_t color;
if(selected) color = 0xcccc; else color = FOREGROUND_COLOR;
display_draw_equtriangle(x,y,9,color);
display_draw_equtriangle_inv(x,y+33,9,color);
if(nonnumeric == false) {
display_draw_number(x-4,y+9,val,1,FOREGROUND_COLOR);
} else {
display_draw_text(x-4,y+9,selitem[val],FOREGROUND_COLOR);
}
}
void GUI::process_key_down() {
if(screens_layout[current_screen].items[selected_item].type == ITEM_TYPE_VARNUM) {
uint8_t current = get_item_state_varnum(screens_layout[current_screen].items[selected_item]);
int8_t val[1];
val[0] = current-1;
if(val[0] < 0) val[0] = 0;
update_item(screens_layout[current_screen].items[selected_item],val);
receive_gui_events.receive_gui_event("varnumchange",screens_layout[current_screen].items[selected_item].text);
return;
}
if((selected_item+1) < screens_layout[current_screen].item_count) {
last_selected_item = selected_item;
selected_item++;
}
}
uint8_t get_item_state_varnum(screen_item &item) {
return get_item_state_varnum(item.text);
}
uint8_t GUI::get_item_state_uint8(const char *tag) {
// should check item type and repsond appropriately, however only varnum currently returns uint8_t
return get_item_state_varnum(tag);
}
