aaron/discoverpixy
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added num up down support.

Browse Source
This commit is contained in:
t-moe
2015-04-30 23:22:30 +02:00
parent 77e6d0e061
commit 76ea9d8972
5 changed files with 170 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

121
common/gui/numupdown.c Normal file
View File

@@ -0,0 +1,121 @@
#include "tft.h"
#include "touch.h"
#include "button.h"
#include "numupdown.h"
#include <stdio.h> //for sprintf
#include <stddef.h> //for offsetof macro
#include <stdlib.h> //for abs
#define BASE_COLOR RGB(90,90,90)
void button_up_cb(void* button)
{
NUMUPDOWN_STRUCT* element = button-offsetof(NUMUPDOWN_STRUCT,buttonUp);
if(element->value<element->max) {
element->value++;
gui_numupdown_update(element);
if(element->callback!=NULL) {
element->callback(element,element->value);
}
}
}
void button_down_cb(void* button)
{
NUMUPDOWN_STRUCT* element = button-offsetof(NUMUPDOWN_STRUCT,buttonDown);
if(element->value>element->min) {
element->value--;
gui_numupdown_update(element);
if(element->callback!=NULL) {
element->callback(element,element->value);
}
}
}
static uint8_t calc_text_width(int16_t val) {
uint8_t width = 1 + (val<0); //1 if positive, 2 if negative (to let space for sign)
val=abs(val);
while(val>=10) {
val/=10;
width++;
}
return width;
}
bool gui_numupdown_add(NUMUPDOWN_STRUCT* numupdown)
{
if(touch_have_empty(2)) //We require 2 TouchAreas (for Buttons)
{
if(numupdown->min > numupdown->max) return false;
if(numupdown->value > numupdown->max) {
numupdown->value = numupdown->max;
}
if(numupdown->value < numupdown->min) {
numupdown->value = numupdown->min;
} else if(numupdown->value > numupdown->max) {
numupdown->value = numupdown->max;
}
uint8_t tw1 = calc_text_width(numupdown->max);
uint8_t tw2 = calc_text_width(numupdown->min);
if(tw2 > tw1) tw1 = tw2;
uint8_t width= tft_font_width(0)*(tw1+1);
numupdown->buttonUp.base.x1=numupdown->x;
numupdown->buttonUp.base.y1=numupdown->y;
numupdown->buttonUp.base.x2=numupdown->x+width;
numupdown->buttonUp.base.y2=AUTO;
numupdown->buttonUp.text="+";
numupdown->buttonUp.font=0;
numupdown->buttonUp.bgcolor=BASE_COLOR;
numupdown->buttonUp.txtcolor=WHITE;
numupdown->buttonUp.callback = button_up_cb;
gui_button_add(&numupdown->buttonUp);
numupdown->buttonDown.base.x1=numupdown->x;
numupdown->buttonDown.base.y1=numupdown->buttonUp.base.y2+2*tft_font_height(0);
numupdown->buttonDown.base.x2=numupdown->x+width;
numupdown->buttonDown.base.y2=AUTO;
numupdown->buttonDown.text="-";
numupdown->buttonDown.font=0;
numupdown->buttonDown.bgcolor=BASE_COLOR;
numupdown->buttonDown.txtcolor=WHITE;
numupdown->buttonDown.callback = button_down_cb;
gui_button_add(&numupdown->buttonDown);
tft_fill_rectangle(numupdown->x,numupdown->buttonUp.base.y2+1,numupdown->x+width,numupdown->buttonDown.base.y1-1,BASE_COLOR);
tft_print_formatted(numupdown->x+tft_font_width(0)/2,numupdown->buttonUp.base.y2+tft_font_height(0)/2,numupdown->fgcolor,BASE_COLOR,0,"%*d",tw1,numupdown->value);
return true;
}
return false;
}
void gui_numupdown_remove(NUMUPDOWN_STRUCT* numupdown)
{
gui_button_remove(&numupdown->buttonUp);
gui_button_remove(&numupdown->buttonDown);
}
void gui_numupdown_update(NUMUPDOWN_STRUCT* numupdown)
{
uint8_t tw1 = calc_text_width(numupdown->max);
uint8_t tw2 = calc_text_width(numupdown->min);
if(tw2 > tw1) tw1 = tw2;
uint8_t width= tft_font_width(0)*(tw1+1);
tft_fill_rectangle(numupdown->x,numupdown->buttonUp.base.y2+1,numupdown->x+width,numupdown->buttonDown.base.y1-1,BASE_COLOR);
tft_print_formatted(numupdown->x+tft_font_width(0)/2,numupdown->buttonUp.base.y2+tft_font_height(0)/2,numupdown->fgcolor,BASE_COLOR,0,"%*d",tw1,numupdown->value);
}
void gui_numupdown_redraw(NUMUPDOWN_STRUCT* numupdown)
{
gui_button_redraw(&numupdown->buttonUp);
gui_button_redraw(&numupdown->buttonDown);
gui_numupdown_update(numupdown);
}