(glgui-chat g x y w h dh lst fnt cb)

glgui-chat adds a chat dialog (list) to the screen.

Parameter	Description
g	Graphical User Interface (GUI) for this widget
x	Lower left corner along the x-axis in pixels
y	Lower left corner along the y-axis in pixels
w	Width of the element in pixels
h	Height of the element in pixels
dh	The line element height for timestamps and minimal row height for text
lst	The chat list of lists [timestamp, name or (list name colour), string, received(0)/sent(1)/alert(2)]
fnt	The font used to render all strings
cb	The callback function when an element is clicked

Attributes

Besides the parameters set in the procedure, the widget has the following attributes that can be set using glgui-widget-set!:

Attribute	Default Value	Description
hidden	False	If true, the widget is not displayed.
bgcol1	(color-shade White 0.2)	The background color of sent messages.
bgcol2	(color:shuffle #x021c4dff)	The background color of received messages.
bgcol3	(color:shuffle #xb8860bff)	The background color of alerts (messages spanning width of widget).
txtcol	White	Color of message text.
tscol	White	Color of timestamp text.
group	False	True if widget should be rendered as a group chat. In a group chat, received messages will include the name of the message author; their name will not be displayed if they send consecutive messages. Each name appears as a different color, which is assigned by default. It can be specified by substituting the name parameter of a chat message with a list of name and color (see Example 2).

Example

Example 1: Place a chat dialog the middle of the screen, and fill it with some text. Can be copied into DemoHelloWorld as is.

(glgui-chat gui 0 (/ (glgui-height-get) 4) (glgui-width-get) (/ (glgui-height-get) 2) 16 
  (list (list (- ##now 1000) "A" "Once upon a time there was a blue dinosaur." 1)
  (list (- ##now 2200) "B" "Hope this will be interesting ..." 0)
  (list (- ##now 2300) "B" "Okay." 0)
  (list (- ##now 2500) "A" "Shell I tell you a story" 1)
  (list (- ##now 2500) "B" "I am really bored right now" 0)
  (list (- ##now 3000) "B" "The red fox jumps over the lazy dog." 0))    
  ascii_18.fnt #f)

Example 2: Place a chat near the bottom of the screen, fill it with some text, and set the group attribute to #t. Can be copied into DemoHelloWorld as is.

(set! chat (glgui-chat gui 0 (/ (glgui-height-get) 8) (glgui-width-get) (* (/ (glgui-height-get) 4) 3) 20
             (list (list (- ##now 1000) "Annie" "Ok, I might be late but should be able to make it" 1)
             (list (- ##now 2200) (list "Taylor" PaleVioletRed)  "6 rounds of 10 questions" 0)
             (list (- ##now 2300) (list "Taylor" PaleVioletRed) "8pm" 0)
             (list (- ##now 2500) "Annie" "What time does it start?" 1)
             (list (- ##now 2500) (list "Joe" LightGoldenrod) "Sure" 0)
             (list (- ##now 3000) (list "Taylor" PaleVioletRed) "Trivia Night tomorrow, anybody want to go?" 0))
             ascii_18.fnt #f))
(glgui-widget-set! gui chat 'group #t)