Builtin Namespaces¶
The following namespaces provide access to common constants such as special keys or named colors.
Colors¶
Use the colors namespace to select colors by their name. For example you can use Colors.aquamarine or Colors.bisque.
The entire list of names is very long. You can find a complete list in the CSS Specification.
These functions are available both in the global scope, and in the Colors namespace.
rgb(int, int, int) -> color,rgba(int, int, int, float) -> color
Return the color as in CSS. Like in CSS, these two functions are actually aliases that can take three or four parameters.
The first 3 parameters can be either number between 0 and 255, or a percentage with a % unit.
The fourth value, if present, is an alpha value between 0 and 1.
Unlike in CSS, the commas are mandatory.
hsv(h: float, s: float, v: float) -> color,hsv(h: float, s: float, v: float, a: float) -> color
Return a color computed from the HSV color space. The hue is between 0 and 360. The saturation, value, and optional alpha parameter are expected to be within the range of 0 and 1.
Key¶
Use the constants in the Key namespace to handle pressing of keys that don’t have a printable character. Check the value of KeyEvent’s text property
against the constants below.
BackspaceTabReturnEscapeBacktabDeleteShiftControlAltAltGrCapsLockShiftRControlRMetaMetaRSpaceUpArrowDownArrowLeftArrowRightArrowF1F2F3F4F5F6F7F8F9F10F11F12F13F14F15F16F17F18F19F20F21F22F23F24InsertHomeEndPageUpPageDownScrollLockPauseSysReqStopMenu
Math¶
These functions are available both in the global scope and in the Math namespace.
abs(T) -> T¶
Return the absolute value, where T is a numeric type.
acos(float) -> angle, asin(float) -> angle, atan(float) -> angle, cos(angle) -> float, sin(angle) -> float, tan(angle) -> float¶
The trigonometry function. Note that the should be typed with deg or rad unit
(for example cos(90deg) or sin(slider.value * 1deg)).
ceil(float) -> int and floor(float) -> int¶
Return the ceiling or floor
clamp(T, T, T) -> T¶
Takes a value, minimum and maximum and returns maximum if
value > maximum, minimum if value < minimum, or value in all other cases.
log(float, float) -> float¶
Return the log of the first value with a base of the second value
max(T, T) -> T and min(T, T) -> T¶
Return the arguments with the minimum (or maximum) value. All arguments must be of the same numeric type
mod(T, T) -> T¶
Perform a modulo operation, where T is some numeric type.
round(float) -> int¶
Return the value rounded to the nearest integer
sqrt(float) -> float¶
Square root
pow(float, float) -> float¶
Return the value of the first value raised to the second