Graphical elem that will draw drawable with a gray border. Also allows a specified padding.

;; Add a border without padding (bordered elem)

;; Add border with 5 px padding around elem (bordered 5 elem)

;; Add border ;; Add 3 pixels of padding to the left and right ;; and 5 pixels to the top and bottom (bordered 3 5 elem)

;; Add border ;; 1 px to the top ;; 2 pixels to the right ;; 3 pixels to the bottom ;; 4 pixels to the left. (bordered 1 2 3 4 elem)

Returns a 2 element vector with the width, height of an element's bounds with respect to its origin

Tests whether px py is within x y width height.

Graphical elem that draws a button. Optional on-click function may be provided that is called with no arguments when button has a mouse-down event.

Centers elem within a space of [width, height]

Graphical elem that will draw a checkbox.

Returns sub elements of elem. Useful for traversal.

Returns the intents of a clipboard copy event on elem.

Returns the intents of a clipboard cut event on elem.

Returns the intents of a clipboard paste event on elem.

Graphical elem that will draw elem with filled border.

Graphical elem that draws a filled rectangle with color, r g b or r g b a.

Creates a font.

name: Should be the path to a font file on desktop. If nil, use the default font. size: Size of the font. If nil, use the default font size.

Returns the height of elem.

Returns a graphical elem of elems layed out next to eachother.

Allows an element add, remove, modify intents emitted from its children.

Graphical element that draws an image.

image-path: using the skia backend, image-path can be one of

• a string filename
• a java.net.URL
• a byte array containing the bytes of supported image format This is useful for drawing images included in a jar. Simply put your image in your resources folder, typically resources. Draw the images in the jar with (ui/image (clojure.java.io/resource "filename.png"))

The image can be drawn at a different size by supplying a size. Supply a nil size will use the the original image size.

The image can be aspect scaled by supply a size with one of the dimensions as nil.

For example, to draw an image with width 30 with aspect scaling, (image "path.png" [30 nil])

opacity is a float between 0 and 1.

Allowable image formats may vary by platform, but will typically include png and jpeg.

Returns the width, height of the file at image-path.

Returns the intents of a key event on elem.

Returns the intents of a key press event on elem.

Graphical elem that can draw text.

label will use the default line spacing for newline. font should be a membrane.ui.Font

Only respond to key events when test is true.

Only respond to key press events when test is true.

Returns a memoized version of a referentially transparent function. The memoized version of the function keeps a cache of the mapping from arguments to results and, when calls with the same arguments are repeated often, has higher performance at the expense of higher memory use.

Returns the intents of a mouse down event on elem.

Returns the intents of an event representing when the mouse enters or leaves the window.

Note: This event is new and is not implemented for all backends.

Returns the intents of a mouse move event on elem.

Returns the intents of a mouse move event on elem. Will -mouse-move-global for all elements and their children.

Returns the intents of a mouse up event on elem.

Wraps an elem with event handlers.

events are pairs of events and event handlers and the last argument should be an elem.

example:

Adds do nothing event handlers for mouse-down and mouse-up events on a label that says "Hello!" (on :mouse-down (fn mx my nil) :mouse-up (fn mx my nil) (label "Hello!"))

Wraps drawables and adds a handler for bubbling

on-bubble should take seq of intents

Wrap an element with a mouse down event handler, on-click.

on-click must accept 0 arguments and should return a sequence of intents.

Wraps drawables and adds a handler for clipboard copy events.

on-clipboard-copy should take 0 arguments and return a sequence of intents.

Wraps drawables and adds a handler for clipboard cut events.

on-clipboard-copy should take 0 arguments and return a sequence of intents.

Wraps drawables and adds a handler for clipboard paste events.

on-clipboard-paste should take 1 arguments s and return a sequence of intents.

Wraps drawables and adds an event handler for drop events.

on-drop should take 2 arguments paths pos and return a sequence of intents.

Wraps drawables and adds a handler for key events.

on-key-event should take 4 arguments key, scancode, action, mods and return a sequence of intents.

Wraps drawables and adds an event handler for key-press events.

on-key-press should take 1 argument key and return a sequence of intents.

Wraps drawables and adds an event handler for mouse-down events.

on-mouse-down should take 1 argument mx my of the mouse position in local coordinates and return a sequence of intents.

Wraps drawables and adds an event handler for mouse-down events. Unlike on-mouse-down, does not ignore events outside the bounds of drawables.

on-mouse-down-raw should take 1 argument mx my of the mouse position in local coordinates and return a sequence of intents.

Wraps drawables and adds an event handler for mouse-enter-global events.

on-mouse-enter-global down should take 1 argument enter? that represents the mouse entering or leaving the window.

Returns a sequence of intents.

Wraps drawables and adds an event handler for mouse events.

on-mouse-event should take 4 arguments pos button mouse-down? mods and return a sequence of intents.

Wraps drawables and adds an event handler for mouse-move events.

on-mouse-move down should take 1 argument mx my of the mouse position in local coordinates and return a sequence of intents.

Wraps drawables and adds an event handler for mouse-move-global events.

on-mouse-move-global down should take 1 argument mx my of the mouse position in global coordinates and return a sequence of intents.

Wraps drawables and adds an event handler for mouse-move events. Unlike on-mouse-move, does not ignore events outside the bounds of drawables.

on-mouse-move down should take 1 argument mx my of the mouse position in local coordinates and return a sequence of intents.

Wraps drawables and adds an event handler for mouse-up events.

on-mouse-up should take 1 argument mx my of the mouse position in local coordinates and return a sequence of intents.

Wraps drawables and adds an event handler for mouse-up events. Unlike on-mouse-up, does not ignore events outside the bounds of drawables.

on-mouse-up should take 1 argument mx my of the mouse position in local coordinates and return a sequence of intents.

Wraps drawables and adds an event handler for scroll events.

on-scroll should take 1 argument offset-x offset-y of the scroll offset and return a sequence of intents.

Specifies the top left corner of a component's bounds

The origin is vector or 2 numbers x, y

Convience function for returning the x coordinate of elem's origin

Convience function for returning the y coordinate of elem's origin

Adds empty space around an element. The bounds of the returned element will include the padding.

;; Add 5 pixels of empty space around all 4 sides of elem (padding 5 elem)

;; Add 3 pixels of padding to the left and right ;; and 5 pixels to the top and bottom (padding 3 5 elem)

;; 1 px to the top ;; 2 pixels to the right ;; 3 pixels to the bottom ;; 4 pixels to the left. (padding 1 2 3 4 elem)

A graphical element that will draw lines connecting points.

See with-style, with-stroke-width, and with-color for more options.

Graphical elem that draws a rectangle.

See with-style, with-stroke-width, and with-color for more options.

Graphical elem that draws a rounded rectangle.

Draw drawables using scalars which is a vector of scale-x scale-y

Graphical elem to only draw drawable within bounds with an offset.

All other drawing will be clipped.

Graphical elem that will draw drawable offset by offset and clip its drawings to bounds.

An empty graphical element with width x and height y.

Useful for layout.

Graphical elem that can draw a text cursor

font should be a membrane.ui.Font

Graphical elem for drawing a selection of text.

A graphical elem that will shift drawable's origin by x and y and draw it at its new origin.

Tries to draw body. If an exception occurs, calls error-draw with draw and the exception

Example: (ui/try-draw error-body (fn draw e (draw (ui/label e))))

Returns a graphical elem of elems stacked on top of each other

Returns the width of elem.

Use color for all children. Color is a vector of r g b or r g b a. All values should be between 0 and 1 inclusive.

Set the stroke width for drawables.

Style for drawing paths and polygons

style is one of: :membrane.ui/style-fill :membrane.ui/style-stroke :membrane.ui/style-stroke-and-fill

Wraps an elem with event handlers.

events are pairs of events and event handlers and the last argument should be an elem. The event handlers should accept an extra first argument to the event which is the original event handler.

example:

Wraps a button with a mouse-down handler that only returns an intent when the x coordinate is even. (on :mouse-down (fn [handler mx my] (when (even? mx) (handler mx my))) (button "Hello!" (fn [] :hello!)))