Adding a status bar to the STM32 development board display interface

The main tasks to be completed are:

1) Divide the display position

2) Draw the status bar background

3) Draw the battery icon: a total of 7 baticos[7]

4) Draw time: only show hours and minutes

5) Cycle to detect time changes, change the displayed time value, and simultaneously determine the battery power and draw the corresponding icon

Source file: satusbar.c

#include  < includes.h >

#include

const u8* baticos[7] =

{

   "0:/STATUSBAR/BAT/battery0.bmp",

   "0:/STATUSBAR/BAT/battery1.bmp",

   "0:/STATUSBAR/BAT/battery2.bmp",

   "0:/STATUSBAR/BAT/battery3.bmp",

   "0:/STATUSBAR/BAT/battery4.bmp",

   "0:/STATUSBAR/BAT/battery5.bmp",

   "0:/STATUSBAR/BAT/battery6.bmp"

};

u8 bat_status = 0;

u8 tmer_min = 0;

void statusbar_fun(void)

{

         //Draw the status bar

         //1) Draw the status bar background 320x12 x=0, y=0, w=320, h=22

         LCD_Fill(0,0,320,22,BLACK);

         //2) Draw the battery power 24X14 display on the right, x=320-5-24, y=2, w=24, h=14

         bat_status = 6;

         minibmp_decode((u8*)baticos[bat_status],320-5-24,4,24,14,0,0);

         //3) Drawing time 30x16 x=320-5-24-10-40 y=3, w=40, h=16

                   {

                            POINT_COLOR = WHITE;

                            tmer_min = calendar.min;

                            LCD_ShowChar(320-5-24-10-40+16,3,':',16,1);

                            LCD_ShowNum(320-5-24-10-40,3,calendar.hour,2,16);

                            LCD_ShowNum(320-5-24-10-40+24,3,calendar.min,2,16); }

}

//Called from while(1) in other interface functions, such as the main function

void statusbar_change(void)

{

         if(tmer_min!=calendar.min)

          {

                   tmer_min = calendar.min;

                   //1) Drawing time

                   POINT_COLOR = WHITE;

                   LCD_Fill(320-5-24-10-40,3,320-5-24-10,19,BLACK);

                   LCD_ShowChar(320-5-24-10-40+16,3,':',16,1);

                   LCD_ShowNum(320-5-24-10-40,3,calendar.hour,2,16);                                                                                

                   LCD_ShowNum(320-5-24-10-40+24,3,calendar.min,2,16);       

                   //2) Draw the battery power //No battery has been added yet, it is just a loop change. If a battery is added later, modify the value of bat_status according to the battery power obtained

                   if(bat_status == 0||bat_status>6)

                           bat_status =6;

                   else

                            bat_status--;

                   minibmp_decode((u8*)baticos[bat_status],320-5-24,4,24,14,0,0);                                                                                                                                            

                  }

}

Add to the header file for function calls in other source files

//add by joqian for statusbar

extern u8 bat_status;

extern u8 tmer_min;

extern void statusbar_change(void);

display effect: