global_functions module

Contains functions invoked by several different parts of the code.

global_functions.adjust_gauge_lims(curr_val, gauge)

For circular gauges. Adjusts upper/lower limits to nearest round numbers

Parameters:

  • curr_val (float) – Value to be shown on gauge

  • gauge (AA_Gauge) – Which gauge to update

global_functions.blitRotate2(surf, image, topleft, angle)

Rotate an image around its center (instead of top corner)

Parameters:

  • surf (pygame.Surface) – pygame surface to blit to

  • image (pygame.image) – image to be rotated

  • topleft (int) – top-left co-ord of image

  • angle (int) – rotate by this angle

Returns:

w (int):

width

w2 (int):

width2

global_functions.blit_some_stats(screen, width, day, date, hour_sec, fps, cpu_pct, cpu_temp, wifi_name, wifi_symbol, bluetooth_img)

These pieces of info are always displayed in the top bar or in the Okudagrams.

Parameters:

  • screen (pygame.Screen) – Screen surface for blitting

  • width (int) –

  • day (string) –

  • date (string) –

  • hour_sec (string) –

  • fps (float) –

  • cpu_pct (float) –

  • cpu_temp (float) –

  • wifi_name (string) – Name of currently connected wifi (if any)

  • wifi_symbol (pygame.image) – Wifi symbol

  • bluetooth_img (pygame.image) – Bluetooth symbol

global_functions.flip_buttons(pressed_button, button_list)

Unselect all other buttons except the one just pressed

Parameters:

  • pressed_button (button) – Pressed button that called this function

  • button_list (list) – List of all buttons on this page

global_functions.get_date_time()

Get formatted time for top toolbar display

Returns:

day, date, hour_sec

Return type:

string, string, string

global_functions.get_text_dimensions(text='', font_style='FONT_DIN', font_color='WHITE', style=0, font_size=28)

Return size of to-be-rendered text

Parameters:

  • text (string) – Find size of this text

  • font_style (pygame.font) – Choice of font affects dimensions, default is FONT_DIN.

  • font_color (pygame.Color) – Color defaults to WHITE

  • style (int) – 0 for normal (default), 1 for bold

  • font_size (int) – size of text

Returns:

surf (pygame.Surface):

Surface of rendered text (not used)

w (int):

width (in px) of to-be-rendered tex

h (int):

height (in px) of to-be-rendered text

global_functions.get_wifi_name()

Returns name of wifi network if connected.

Return wifi_name:

Name of network if connected, “No WiFi” otherwise

Return type:

string

global_functions.my_map(x, in_min, in_max, out_min, out_max)

Standard mapping formula. Used in many places

Note:

Standard formula

Custom:

Custom

Parameters:

  • x (float/int) – Input value to be mapped

  • in_min (float/int) – Least possible value for input

  • in_max (float/int) – Max possible value for input

  • out_min (float/int) – Least possible value for output

  • out_max (float/int) – Max possible value for output

Returns:

Scaled value

Return type:

float

global_functions.print_global()

Prints the battery level

global_functions.update_cpu_stats(dt=None)

Get rapsberry pi usage stats

Returns:

cpu_pct (float):

CPU % in use

cpu_temp (float):

CPU temperature in C