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nuklear

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Introduction

This egg provides an incomplete set of bindings to the nuklear immediate mode GUI library.

Author

Vasilij Schneidermann

Repository

https://depp.brause.cc/nuklear

Current state of the bindings

Backends

API Support

Everything required for the GLFW3 OpenGL2 demos is supported.

Vendored headers

Last synced: 07-06-2016

Requirements

To compile the egg successfully, all foreign dependencies for the glfw-opengl2 backend must be met:

Additionally to this, you will need a GPU supporting OpenGL2. The setup script has only been tested on Linux and will most certainly need adjustments to work on OS X and Windows.

API

Backends

glfw-opengl2 Backend
anti-alias?
anti-alias?parameter
anti-alias? FLAGparameter

Controls whether anti-aliasing is enabled, defaulting to #t.

max-vertex-buffer
max-vertex-bufferparameter
max-vertex-buffer Nparameter

Controls the maximum amount of vertices, defaulting to 512*1024.

max-element-buffer
max-element-bufferparameter
max-element-buffer Nparameter

Controls the maximum amount of elements, defaulting to 128*1024.

init!
init! window install-callbacks?procedure

Initializes the backend and returns a context to be used in all GUI procedures. WINDOW must be a GLFW3 window and can be obtained with its (window) parameter after successful setup. If INSTALL-CALLBACKS? is #t, input and scrolling callbacks are set up, otherwise the created context can only be used for visualizing data.

init-font!
(init-font! [context path size])procedure

Initializes either the default font or a custom one if CONTEXT, PATH and SIZE are provided. The optional arguments need to be a previously obtained context, a string specifying the path to the font and a number for the font size.

new-frame
new-frameprocedure

Starts a new frame to operate on.

render!
render!procedure

Commits all changes done to the current frame.

shutdown!
shutdown!procedure

Shuts down the backend. This must be called after exiting the main loop and before terminating GLFW3.

Basic types

Panels
make-panel
make-panelprocedure

Creates and returns a panel.

panel-bounds
panel-bounds PANELprocedure

Returns a rectangle describing the panel's bounds.

Rects
make-rect
make-rect X Y W Hprocedure

Creates and returns a rectangle at the coordinates X and Y with the dimensions W and H. Note that all arguments can be floats.

rect-x / rect-x-set!
rect-x RECTprocedure
rect-x-set! RECT Xprocedure
set! (rect-x RECT) Xsetter

Retrieves or sets the x coordinate of RECT.

rect-y / rect-y-set!
rect-y RECTprocedure
rect-y-set! RECT Yprocedure
set! (rect-y RECT) Ysetter

Retrieves or sets the y coordinate of RECT.

rect-w / rect-w-set!
rect-w RECTprocedure
rect-w-set! RECT Wprocedure
set! (rect-w RECT) Wsetter

Retrieves or sets the w coordinate of RECT.

rect-h / rect-h-set!
rect-h RECTprocedure
rect-h-set! RECT Hprocedure
set! (rect-h RECT) Hsetter

Retrieves or sets the h coordinate of RECT.

Vectors
make-vec2
make-vec2 X Yprocedure

Creates and returns a vector with the components X and Y. Note that all arguments can be floats.

vec2-x / vec2-x-set!
vec2-x VECTORprocedure
vec2-x-set! VECTOR Xprocedure
set! (vec2-x VECTOR) Xsetter

Retrieves or sets the x component of VECTOR.

vec2-y / vec2-y-set!
vec2-y VECTORprocedure
vec2-y-set! VECTOR Yprocedure
set! (vec2-y VECTOR) Ysetter

Retrieves or sets the y component of VECTOR.

Colors
make-color
make-color R G B Aprocedure

Creates and returns a color with the components R, G, B and A. All arguments must be integers between 0 and 255.

color-r / color-r-set!
color-r COLORprocedure
color-r-set! COLOR Rprocedure
set! (color-r COLOR) Rsetter

Retrieves or sets the red component of COLOR.

color-g / color-g-set!
color-g COLORprocedure
color-g-set! COLOR Gprocedure
set! (color-g COLOR) Gsetter

Retrieves or sets the green component of COLOR.

color-b / color-b-set!
color-b COLORprocedure
color-b-set! COLOR Bprocedure
set! (color-b COLOR) Bsetter

Retrieves or sets the blue component of COLOR.

color-a / color-a-set!
color-a COLORprocedure
color-a-set! COLOR Aprocedure
set! (color-a COLOR) Asetter

Retrieves or sets the alpha component of COLOR.

Color helpers
rgb->color
rgb->color R G Bprocedure

Returns a color with the components R, G and B. All arguments must be integers between 0 and 255.

color->rgba-floats
color->rgba-floats COLORprocedure

Returns a list of red, green, blue and alpha components as floats between 0 and 1.

hsva->color
hsva->color H S V Aprocedure

Returns a color with the components H, S, V and A. All arguments must be integers between 0 and 255.

color->hsva-ints
color->hsva-ints COLORprocedure

Returns a list of hue, saturation, value and alpha components as integers between 0 and 255.

Window helpers

window-bounds
window-bounds CONTEXTprocedure

Returns a rectangle describing the boundaries of the currently active window.

window-content-region
window-content-region CONTEXTprocedure

Returns a rectangle describing the content region of the currently active window.

window-canvas
window-canvas CONTEXTprocedure

Returns a canvas suitable for drawing on the currently active window.

window-closed?
window-closed? CONTEXT TITLEprocedure

Returns #t if a window as identified by TITLE is no longer open, otherwise #f.

Layouts

Constrained positioning
layout-row-dynamic
layout-row-dynamic CONTEXT HEIGHT COLUMNSprocedure

Sets up the following widgets to be positioned dynamically into rows. HEIGHT is the height of the row, COLUMNS the amount of widgets per row.

layout-row-static
layout-row-static CONTEXT HEIGHT ITEM-WIDTH COLUMNSprocedure

Sets up the following widgets to be positioned statically into rows. HEIGHT is the height of the row, ITEM-WIDTH the width of each widget and COLUMNS the amount of widgets per row.

layout-row-begin
layout-row-begin CONTEXT DYNAMIC? HEIGHT COLUMNSprocedure

Sets up the following widgets to be positioned dynamically or statically into a row, depending on DYNAMIC?. COLUMNS is the amount of widgets to be positioned.

layout-row-push
layout-row-push CONTEXT RATIO-OR-WIDTHprocedure

Adds a widget to a row. If the positioning is dynamic, RATIO-OR-WIDTH is interpreted as ratio, otherwise as width in pixels.

layout-row-end
layout-row-end CONTEXTprocedure

Terminates a layouted row.

layout-row
layout-row CONTEXT DYNAMIC? HEIGHT RATIOS-OR-WIDTHSprocedure

Sets up the following widgets to be positioned dynamically or statically into a row, depending on DYNAMIC?. HEIGHT is the height of the row. RATIONS-OR-WIDTHS is a list of ratios or widths, depending on DYNAMIC?. This is equivalent to using layout-row-begin, layout-row-push and layout-row-end.

Free positioning
layout-space-begin
layout-space-begin CONTEXT DYNAMIC? HEIGHT WIDGET-COUNTprocedure

Sets up the following widgets to be positioned freely. If DYNAMIC? is #t, widgets are scaled. HEIGHT is the total height of all widgets, WIDGET-COUNT the number of widgets.

layout-space-push
layout-space-push CONTEXT RECTprocedure

Adds a freely positioned widget at RECT.

layout-space-end
layout-space-end CONTEXTprocedure

Terminates free positioning.

Layout space helpers
layout-space-bounds
layout-space-bounds CONTEXTprocedure

Returns a rectangle describing the inner bounds of the current widget.

layout-space-to-screen
layout-space-to-screen CONTEXT VECTORprocedure

Returns a copy of VECTOR with absolute coordinates.

layout-space-rect-to-screen
layout-space-rect-to-screen CONTEXT RECTprocedure

Returns a copy of RECT with absolute coordinates.

layout-space-rect-to-local
layout-space-rect-to-local CONTEXT RECTprocedure

Returns a copy of RECT with relative coordinates.

Misc
spacing
spacing CONTEXT COLUMNSprocedure

Adds COLUMNS of spacing.

Blocks

Window block
window-begin
window-begin CONTEXT PANEL TITLE RECT FLAG-OR-FLAGSprocedure

Starts a window block with TITLE as window title. RECT specifies the window boundaries. FLAG-OR-FLAGS is a symbol or a list of symbols, each of which must be one of (border border-header movable scalable closable minimizable dynamic no-scrollbar title). Returns #t if the window is visible.

window-end
window-end CONTEXTprocedure

Terminates the window block. Must be used after starting a window block, regardless of whether the window is visible or not.

Group block
group-begin
group-begin CONTEXT PANEL TITLE FLAG-OR-FLAGSprocedure

Starts a group block with TEXT as title. FLAG-OR-FLAGS is a symbol or list of symbols, each of which must be one of (border border-header movable scalable closable minimizable dynamic no-scrollbar title). Returns #t if the group is visible.

group-end
group-end CONTEXTprocedure

Terminates the group block. May only be used when the group is visible.

Tree block
tree-push
tree-push CONTEXT TAB? TEXT MAXIMIZED?procedure

Starts a tree block with TEXT as label. If TAB? is #t, the tree header is highlighted specially. If MAXIMIZED? is #t, the tree starts expanded, otherwise minimized. Returns #t if the tree is expanded.

tree-pop
tree-pop CONTEXTprocedure

Terminates the tree block. May only be used when the tree is expanded.

Chart block
chart-begin
chart-begin CONTEXT LINES? COUNT MIN-VALUE MAX-VALUEprocedure

Starts a chart block. If LINES? is #t, draw lines, otherwise columns. COUNT is the number of data points, MIN-VALUE and MAX-VALUE the extremes. Returns #t if the chart is visible.

chart-begin-colored
chart-begin-colored CONTEXT LINES? COLOR HIGHLIGHT COUNT MIN-VALUE MAX-VALUEprocedure

Starts a colored chart block. If LINES? if #t, draw lines, otherwise columns. COLOR is used for the chart itself and HIGHLIGHT for values hovered over. COUNT is the number of data points, MIN-VALUE and MAX-VALUE the extremes. Returns #t if the chart is visible.

chart-push
chart-push CONTEXT VALUEprocedure

Adds VALUE to the data points in the chart. Returns either #f or a list of events for the data point, each of which is one of (hovering clicked).

chart-push-slot
chart-push-slot CONTEXT VALUE SLOTprocedure

Adds VALUE to the data points in the chart SLOT. Returns either #f or a list of events for the data point, each of which is one of (hovering clicked).

chart-add-slot
chart-add-slot CONTEXT LINES? COUNT MIN-VALUE MAX-VALUEprocedure

Adds an extra slot to the chart. Slots are integer values starting from 0. If LINES? is #t, draw lines, otherwise columns. COUNT is the number of data points, MIN-VALUE and MAX-VALUE the extremes.

chart-add-slot-colored
chart-add-slot-colored CONTEXT LINES? COLOR HIGHLIGHT COUNT MIN-VALUE MAX-VALUEprocedure

Adds an extra colored slot to the chart. If LINES? is #t, draw lines, otherwise columns. COLOR is used for the chart itself and HIGHLIGHT for values hovered over. COUNT is the number of data points, MIN-VALUE and MAX-VALUE the extremes.

chart-end
chart-end CONTEXTprocedure

Terminates a chart block.

Popup block
popup-begin
popup-begin CONTEXT PANEL DYNAMIC? FLAG-OR-FLAGS RECTprocedure

Starts a popup block. If DYNAMIC? is #t, the popup uses the dynamic flag. FLAG-OR-FLAGS is a symbol or list of symbols, each of which must be one of (border border-header movable scalable closable minimizable dynamic no-scrollbar title). RECT specifies the boundaries of the popup. Returns #t if the popup is visible.

popup-close
popup-close CONTEXTprocedure

Closes the popup. Must be used inside a popup block.

popup-end
popup-end CONTEXTprocedure

Terminates a popup block. May only be used if the popup is visible.

Combo block
combo-begin-label
combo-begin-label CONTEXT PANEL TEXT MAX-HEIGHTprocedure

Starts a combo block with TEXT as displayed item. MAX-HEIGHT specifies the maximum height the opened combo block may occupy. Returns #t if the combo block is opened.

combo-begin-color
combo-begin-color CONTEXT PANEL COLOR MAX-HEIGHTprocedure

Starts a combo block with COLOR as displayed item. MAX-HEIGHT specifies the maximum height the opened combo block may occupy. Returns #t if the combo block is opened.

combo-items-height
combo-items-height CONTEXT COUNT ITEM-HEIGHTprocedure

Returns the height COUNT labels each of which is ITEM-HEIGHT tall would occupy. This includes padding and borders.

combo-item-label
combo-item-label CONTEXT TEXT ALIGNMENTprocedure

Adds a combo item with TEXT as label. ALIGNMENT is a symbol and must be one of (left centered right).

combo-close
combo-close CONTEXTprocedure

Closes the combo block. Must be used inside a combo block.

combo-end
combo-end CONTEXTprocedure

Terminates a combo block. May only be used if the combo block is visible.

Contextual block
contextual-begin
contextual-begin CONTEXT PANEL FLAG-OR-FLAGS SIZE TRIGGER-BOUNDSprocedure

Starts a context block. SIZE is a vector describing its size. TRIGGER-BOUNDS is a rectangle specifying where it can be triggered with a right mouse click. FLAG-OR-FLAGS is a symbol or list of symbols, each of which must be one of (border border-header movable scalable closable minimizable dynamic no-scrollbar title). Returns #t if the context block is visible.

contextual-item-label
contextual-item-label CONTEXT TEXT ALIGNMENTprocedure

Adds a context item to the current context block with TEXT as label. ALIGNMENT is a symbol and must be one of (left centered right). Returns #t when clicked, otherwise #f.

contextual-end
contextual-end CONTEXTprocedure

Terminates the context block. May only be used if the context block is visible.

Menubar block
menubar-begin
menubar-begin CONTEXTprocedure

Starts a menubar block.

menubar-end
menubar-end CONTEXTprocedure

Terminates a menubar block.

Menu block
menu-begin-label
menu-begin-label CONTEXT PANEL TEXT ALIGNMENT WIDTHprocedure

Starts a menu block with TEXT as label. ALIGNMENT is a symbol and must be one of (left centered right). WIDTH specifies the menu width. Returns #t if the menu block is visible.

menu-item-label
menu-item-label CONTEXT TEXT ALIGNMENTprocedure

Adds a menu item to the current menu block with TEXT as label. ALIGNMENT is a symbol and must be one of (left centered right). Returns #t when clicked.

menu-end
menu-end CONTEXTprocedure

Terminates a menu block. May only be used if the menu block is visible.

Widgets

Label widget
label
label CONTEXT TEXT ALIGNMENTprocedure

Creates a label widget with TEXT as label. ALIGNMENT controls how the text is aligned and must be one of (left centered right).

label-colored
label-colored CONTEXT TEXT ALIGNMENT COLORprocedure

Creates a colored label widget with TEXT as label painted with COLOR. ALIGNMENT controls how the text is aligned and must be one of (left centered right).

label-wrap
label-wrap CONTEXT TEXTprocedure

Creates a label widget with wrapped TEXT as label.

Button widget
button-label
button-label CONTEXT TEXT #!optional REPEATER?procedure

Creates a button widget with TEXT as label. If REPEATER? is #t, the button fires as long as it's clicked, otherwise only once. Returns #t if the button has been clicked.

button-color
button-color CONTEXT COLOR #!optional REPEATER?procedure

Creates a color button widget with COLOR as value. If REPEATER? is #t, the button fires as long as it's clicked, otherwise only once. Returns #t if the button has been clicked.

button-symbol
button-symbol CONTEXT SYMBOL #!optional REPEATER?procedure

Creates a button with SYMBOL on it. SYMBOL must be one of (none x underscore circle circle-filled rect rect-filled triangle-up triangle-down triangle-left triangle-right plus minus). If REPEATER? is #t, the button fires as long as it's clicked, otherwise only once. Returns #t if the button has been clicked.

button-symbol-label
button-symbol-label CONTEXT SYMBOL TEXT ALIGNMENT #!optional REPEATER?procedure

Creates a button with SYMBOL and TEXT as label on it. SYMBOL must be one of (none x underscore circle circle-filled rect rect-filled triangle-up triangle-down triangle-left triangle-right plus minus). ALIGNMENT controls how the text is aligned and must be one of (left centered right). If REPEATER? is #t, the button fires as long as it's clicked, otherwise only once. Returns #t if the button has been clicked.

Checkbox widget
checkbox-label
checkbox-label CONTEXT TEXT ACTIVE?procedure

Creates a checkbox widget with TEXT as label and ACTIVE? as value. Returns the new value.

Option widget
option-label
option-label CONTEXT TEXT ACTIVE?procedure

Creates an option widget with TEXT as label and ACTIVE? as value. Returns the new value.

Selectable widget
selectable-label
selectable-label CONTEXT TEXT ALIGNMENT ACTIVE?procedure

Creates a selectable widget with TEXT as label and ACTIVE? as value. ALIGNMENT must be one of (left centered right). Returns two values, the new value and whether it is different from the old one.

Slider widget
slider-float
slider-float CONTEXT MIN VALUE MAX STEPprocedure

Creates a slider widget with VALUE as initial float value and MIN and MAX as boundaries. STEP determines how much the value changes per step. Returns two values, the new float value and whether it is different from the old one.

slider-int
slider-int CONTEXT MIN VALUE MAX STEPprocedure

Creates a slider widget with VALUE as initial integer value and MIN and MAX as boundaries. STEP determines how much the value changes per step. Returns two values, the new integer value and whether it is different from the old one.

Progressbar widget
progressbar
progressbar CONTEXT VALUE MAX MODIFIABLE?procedure

Creates a progressbar widget with VALUE as initial value. MAX specifies the maximum value that can be displayed. If MODIFIABLE? is #t, the value of the widget can be changed interactively. Returns two values, the new value and whether it is different from the old one.

Color picker widget
color-picker
color-picker CONTEXT COLOR #!optional RGB?procedure

Creates a color picker widget with COLOR as initially picked color. If the optional RGB? argument is #t, use a RGB instead of a RGBA picker. Returns the new color.

Property widget
property-float
property-float CONTEXT TEXT MIN VALUE MAX STEP PIXEL-STEPprocedure

Creates a property widget with VALUE as initial float value and MIN and MAX as boundaries. TEXT specifies the widget label, STEP controls the change in value for each step, PIXEL-STEP the travel in pixels necessary to change the widget value when dragging. Returns the new float value.

property-int
property-int CONTEXT TEXT MIN VALUE MAX STEP PIXEL-STEPprocedure

Creates a property widget with VALUE as initial integer value and MIN and MAX as boundaries. TEXT specifies the widget label, STEP controls the change in value for each step, PIXEL-STEP the travel in pixels necessary to change the widget value when dragging. Returns the new integer value.

Editor widget
edit-string
edit-string CONTEXT EDIT-FLAG-OR-FLAGS TEXT MAX #!optional FILTER-FLAGprocedure

Creates an text editing widget with TEXT for its initial contents and a maximum length of MAX. EDIT-FLAG-OR-FLAGS must be a symbol or list of symbols specifying the general widget behaviour, with the permitted symbols being (simple field box editor) for predefined behavior and (default read-only auto-select sig-enter allow-tab no-cursor selectable clipboard ctrl-enter-newline no-horizontal-scroll always-insert-mode multiline) for finer-grained control over it. FILTER-FLAG restricts chars that can be entered and must be one of (default ascii float decimal hex oct binary). Returns two values, the new text and a list of edit events, each of which are one of (active inactive activated deactivated committed).

Tooltip

tooltip
tooltip CONTEXT TEXTprocedure

Creates a tooltip with TEXT as content.

Context

context-input
context-input CONTEXTprocedure

Returns the current input state associated with CONTEXT.

context-style
context-style CONTEXTprocedure

Returns the current style associated with CONTEXT.

Canvas

stroke-line
stroke-line CANVAS X0 Y0 X1 Y1 LINE-THICKNESS COLORprocedure

Draw a line between the coordinates X0, Y0, X1, Y1 with the width LINE-THICKNESS and COLOR on CANVAS.

stroke-curve
stroke-curve CANVAS AX AY CTRL0X CTRL0Y CTRL1X CTRL1Y BX BY LINE-THICKNESS COLORprocedure

Draw a curve between the coordinates AX, AY, BX, BY with control points CTRL0X, CTRL0Y, CTRL1X, CTRL1Y, the width LINE-THICKNESS and COLOR on CANVAS.

fill-circle
fill-circle CANVAS RECT COLORprocedure

Draw a filled circle in RECT with COLOR on CANVAS.

Styling

style-window-border
style-window-border STYLEprocedure

Returns the window border width associated with STYLE.

style-window-header-align-set!
style-window-header-align-set! STYLE RIGHT?procedure

Sets the window header alignment for STYLE. If RIGHT? is #t, it is set to right-aligned, otherwise left-aligned.

Input

input-mouse
input-mouse INPUTprocedure

Returns the mouse state for INPUT.

mouse-delta
mouse-delta MOUSEprocedure

Returns a vector describing the relative change in pixels between the current and last mouse position for MOUSE.

mouse-position
mouse-position MOUSEprocedure

Returns a vector describing the current mouse position in pixels for MOUSE.

input-mouse-click-down-in-rect?
input-mouse-click-down-in-rect? INPUT BUTTON RECT DOWN?procedure

Returns #t if the BUTTON has been clicked in RECT for INPUT and its clicked state is equal to the DOWN? argument. BUTTON must be one of (left middle right).

input-mouse-hovering-in-rect?
input-mouse-hovering-in-rect? INPUT RECTprocedure

Returns #t if the mouse has been hovering in RECT for INPUT, otherwise #f.

input-mouse-previously-hovering-in-rect?
input-mouse-previously-hovering-in-rect? INPUT RECTprocedure

Returns #t if the mouse has been hovering in the previous frame in RECT for INPUT, otherwise #f.

input-mouse-clicked?
input-mouse-clicked? INPUT BUTTON RECTprocedure

Returns #t if the BUTTON has been clicked in RECT for INPUT, otherwise #f. BUTTON must be one of (left middle right).

input-mouse-down?
input-mouse-down? INPUT BUTTONprocedure

Returns #t if the BUTTON is pressed down for INPUT, otherwise #f. BUTTON must be one of (left middle right).

input-mouse-released?
input-mouse-released? INPUT BUTTONprocedure

Returns #t if the BUTTON is released for INPUT, otherwise #f. BUTTON must be one of (left middle right).

Examples

The following example requires the glfw3 and opengl-glew eggs.

(use (prefix glfw3 glfw:)
     (prefix opengl-glew gl:)
     (prefix nuklear nk:))

(require-library nuklear-glfw-opengl2)
(import (prefix nuklear-glfw-opengl2 backend:))

(define width 250)
(define height 150)

(glfw:init)
(glfw:make-window width height "Hello World")
(glfw:make-context-current (glfw:window))
(set!-values (width height) (glfw:get-window-size (glfw:window)))

(define context (backend:init! (glfw:window) #t))
(backend:init-font!)

(define quit? #f)
(define show-greeting? #f)

(define layout (nk:make-panel))
(define popup-layout (nk:make-panel))

(let loop ()
  (when (and (not (glfw:window-should-close (glfw:window))) (not quit?))
    (glfw:poll-events)
    (backend:new-frame)

    (when (nk:window-begin context layout "Hello World!"
                           (nk:make-rect 10 10 192 100)
                           '(border no-scrollbar movable))
      (nk:layout-row-dynamic context 30 2)
      (when (nk:button-label context "Click Me!")
        (printf "Yay\n")
        (set! show-greeting? #t))
      (when (nk:button-label context "Quit")
        (set! quit? #t))

      (when show-greeting?
        (if (nk:popup-begin context popup-layout #f "Greeting" '(dynamic)
                            (nk:make-rect 15 50 200 150))
            (begin
              (nk:layout-row-dynamic context 25 1)
              (nk:label context "Hello World!" 'centered)
              (nk:layout-row-dynamic context 25 1)
              (when (nk:button-label context "OK")
                (set! show-greeting? #f)
                (nk:popup-close context))
              (nk:popup-end context))
            (set! show-greeting? #f))))
    (nk:window-end context)

    (let-values (((width height) (glfw:get-window-size (glfw:window))))
      (gl:viewport 0 0 width height))
    (gl:clear gl:+color-buffer-bit+)
    (gl:clear-color (/ 28 255) (/ 48 255) (/ 62 255) 0)
    (backend:render!)
    (glfw:swap-buffers (glfw:window))
    (loop)))

(backend:shutdown!)
(glfw:terminate)

Further examples can be found in the repository. Additionally to the previously mentioned eggs, format is required to run the calculator, overview and node editor demos.

Notes

License

This software is dual-licensed to the public domain and under the following license: you are granted a perpetual, irrevocable license to copy, modify, publish and distribute its files as you see fit.

Version history

0.1

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