Node / ReticulumProjects / Sideband.git / files / sbapp / kivymd / theming_dynamic_text.py

Displaying Raw • Download

T8b949e"""

Theming Dynamic Text

====================

Two implementations. The first is based on color brightness obtained from-

https://www.w3.org/TR/AERT#color-contrast

The second is based on relative luminance calculation for sRGB obtained from-

https://www.w3.org/TR/2008/REC-WCAG20-20081211/#relativeluminancedef

and contrast ratio calculation obtained from-

https://www.w3.org/TR/2008/REC-WCAG20-20081211/#contrast-ratiodef

Preliminary testing suggests color brightness more closely matches the

`Material Design spec` suggested text colors, but the alternative implementation

is both newer and the current 'correct' recommendation, so is included here

as an option.

"""

Tff7b72def Td2a8ff_color_brightnessTb4b4b4(Te6edf3colorTb4b4b4)Tb4b4b4:

T8b949e# Implementation of color brightness method

Te6edf3brightness Tff7b72= Te6edf3colorTb4b4b4[T79c0ff0Tb4b4b4] Tff7b72* T79c0ff299 Tff7b72+ Te6edf3colorTb4b4b4[T79c0ff1Tb4b4b4] Tff7b72* T79c0ff587 Tff7b72+ Te6edf3colorTb4b4b4[T79c0ff2Tb4b4b4] Tff7b72* T79c0ff114

Te6edf3brightness Tff7b72= Te6edf3brightness

Tff7b72return Te6edf3brightness

Tff7b72def Td2a8ff_black_or_white_by_color_brightnessTb4b4b4(Te6edf3colorTb4b4b4)Tb4b4b4:

Tff7b72if Te6edf3_color_brightnessTb4b4b4(Te6edf3colorTb4b4b4) Tff7b72>Tff7b72= T79c0ff500Tb4b4b4:

Tff7b72return Ta5d6ff"Ta5d6ffblackTa5d6ff"

Tff7b72elseTb4b4b4:

Tff7b72return Ta5d6ff"Ta5d6ffwhiteTa5d6ff"

Tff7b72def Td2a8ff_normalized_channelTb4b4b4(Te6edf3colorTb4b4b4)Tb4b4b4:

T8b949e# Implementation of contrast ratio and relative luminance method

Tff7b72if Te6edf3color Tff7b72<Tff7b72= T79c0ff0.03928Tb4b4b4:

Tff7b72return Te6edf3color Tff7b72/ T79c0ff12.92

Tff7b72elseTb4b4b4:

Tff7b72return Tb4b4b4(Tb4b4b4(Te6edf3color Tff7b72+ T79c0ff0.055Tb4b4b4) Tff7b72/ T79c0ff1.055Tb4b4b4) Tff7b72*Tff7b72* T79c0ff2.4

Tff7b72def Td2a8ff_luminanceTb4b4b4(Te6edf3colorTb4b4b4)Tb4b4b4:

Te6edf3rg Tff7b72= Te6edf3_normalized_channelTb4b4b4(Te6edf3colorTb4b4b4[T79c0ff0Tb4b4b4]Tb4b4b4)

Te6edf3gg Tff7b72= Te6edf3_normalized_channelTb4b4b4(Te6edf3colorTb4b4b4[T79c0ff1Tb4b4b4]Tb4b4b4)

Te6edf3bg Tff7b72= Te6edf3_normalized_channelTb4b4b4(Te6edf3colorTb4b4b4[T79c0ff2Tb4b4b4]Tb4b4b4)

Tff7b72return T79c0ff0.2126 Tff7b72* Te6edf3rg Tff7b72+ T79c0ff0.7152 Tff7b72* Te6edf3gg Tff7b72+ T79c0ff0.0722 Tff7b72* Te6edf3bg

Tff7b72def Td2a8ff_black_or_white_by_contrast_ratioTb4b4b4(Te6edf3colorTb4b4b4)Tb4b4b4:

Te6edf3l_color Tff7b72= Te6edf3_luminanceTb4b4b4(Te6edf3colorTb4b4b4)

Te6edf3l_black Tff7b72= T79c0ff0.0

Te6edf3l_white Tff7b72= T79c0ff1.0

Te6edf3b_contrast Tff7b72= Tb4b4b4(Te6edf3l_color Tff7b72+ T79c0ff0.05Tb4b4b4) Tff7b72/ Tb4b4b4(Te6edf3l_black Tff7b72+ T79c0ff0.05Tb4b4b4)

Te6edf3w_contrast Tff7b72= Tb4b4b4(Te6edf3l_white Tff7b72+ T79c0ff0.05Tb4b4b4) Tff7b72/ Tb4b4b4(Te6edf3l_color Tff7b72+ T79c0ff0.05Tb4b4b4)

Tff7b72return Ta5d6ff"Ta5d6ffwhiteTa5d6ff" Tff7b72if Te6edf3w_contrast Tff7b72>Tff7b72= Te6edf3b_contrast Tff7b72else Ta5d6ff"Ta5d6ffblackTa5d6ff"

Tff7b72def Td2a8ffget_contrast_text_colorTb4b4b4(Te6edf3colorTb4b4b4, Te6edf3use_color_brightnessTff7b72=Tff7b72TrueTb4b4b4)Tb4b4b4:

Tff7b72if Te6edf3use_color_brightnessTb4b4b4:

Te6edf3contrast_color Tff7b72= Te6edf3_black_or_white_by_color_brightnessTb4b4b4(Te6edf3colorTb4b4b4)

Tff7b72elseTb4b4b4:

Te6edf3contrast_color Tff7b72= Te6edf3_black_or_white_by_contrast_ratioTb4b4b4(Te6edf3colorTb4b4b4)

Tff7b72if Te6edf3contrast_color Tff7b72== Ta5d6ff"Ta5d6ffwhiteTa5d6ff"Tb4b4b4:

Tff7b72return T79c0ff1Tb4b4b4, T79c0ff1Tb4b4b4, T79c0ff1Tb4b4b4, T79c0ff1

Tff7b72elseTb4b4b4:

Tff7b72return T79c0ff0Tb4b4b4, T79c0ff0Tb4b4b4, T79c0ff0Tb4b4b4, T79c0ff1

Tff7b72if Tff7b72__name__ Tff7b72== Ta5d6ff"Ta5d6ff__main__Ta5d6ff"Tb4b4b4:

Tff7b72from T7ee787kivyT7ee787.T7ee787utils Tff7b72import Te6edf3get_color_from_hex

Tff7b72from T7ee787kivymdT7ee787.T7ee787color_definitions Tff7b72import Te6edf3colorsTb4b4b4, Te6edf3text_colors

Tff7b72for Te6edf3c Tff7b72in Te6edf3colorsTff7b72.Td2a8ffitemsTb4b4b4(Tb4b4b4)Tb4b4b4:

Tff7b72if Te6edf3cTb4b4b4[T79c0ff0Tb4b4b4] Tff7b72in Tb4b4b4[Ta5d6ff"Ta5d6ffLightTa5d6ff"Tb4b4b4, Ta5d6ff"Ta5d6ffDarkTa5d6ff"Tb4b4b4]Tb4b4b4:

Tff7b72continue

Te6edf3color Tff7b72= Te6edf3cTb4b4b4[T79c0ff0Tb4b4b4]

Tffa657printTb4b4b4(Ta5d6fffTa5d6ff"Ta5d6ffFor the Tffd700{Te6edf3colorTffd700}Ta5d6ff color palette:Ta5d6ff"Tb4b4b4)

Tff7b72for Te6edf3nameTb4b4b4, Te6edf3hex_color Tff7b72in Te6edf3cTb4b4b4[T79c0ff1Tb4b4b4]Tff7b72.Td2a8ffitemsTb4b4b4(Tb4b4b4)Tb4b4b4:

Tff7b72if Te6edf3hex_colorTb4b4b4:

Te6edf3col Tff7b72= Te6edf3get_color_from_hexTb4b4b4(Te6edf3hex_colorTb4b4b4)

Te6edf3col_bri Tff7b72= Te6edf3get_contrast_text_colorTb4b4b4(Te6edf3colTb4b4b4)

Te6edf3con_rat Tff7b72= Te6edf3get_contrast_text_colorTb4b4b4(

Te6edf3colTb4b4b4, Te6edf3use_color_brightnessTff7b72=Tff7b72False

Tb4b4b4)

Te6edf3text_color Tff7b72= Te6edf3text_colorsTb4b4b4[Te6edf3cTb4b4b4[T79c0ff0Tb4b4b4]Tb4b4b4]Tb4b4b4[Te6edf3nameTb4b4b4]

Tffa657printTb4b4b4(

Ta5d6fffTa5d6ff"Ta5d6ff The Tffd700{Te6edf3nameTffd700}Ta5d6ff hue gives Tffd700{Te6edf3col_briTffd700}Ta5d6ff using color Ta5d6ff"

Ta5d6fffTa5d6ff"Ta5d6ffbrightness, Tffd700{Te6edf3con_ratTffd700}Ta5d6ff using contrast ratio, and Ta5d6ff"

Ta5d6fffTa5d6ff"Tffd700{Te6edf3text_colorTffd700}Ta5d6ff from the MD specTa5d6ff"

Tb4b4b4)