Added GUI to thing

yay

1 files changed, 196 insertions, 0 deletions

diff --git a/Hermes/Hermes_Gui1.3.rkt b/Hermes/Hermes_Gui1.3.rkt
new file mode 100644
index 0000000..ba239c3
--- /dev/null
+++ b/Hermes/Hermes_Gui1.3.rkt
@@ -0,0 +1,196 @@
+#lang racket
+(require racket/gui/base)
+;Author:Douglas Richardson
+;Notes:Our GUI mostly deals with lists of a list of 3 strings and a number
+;although the number is always delt with locally
+;When using user-message you need to give it a list of 3 things
+;The name of the user as a string, what they said as a string,
+;and the color as a string
+
+;Object stuff
+
+(provide make-gui)
+
+(define (make-gui)
+  (begin
+    ;;Create the frame
+    (define main-frame (new frame%
+                            [label "Example5"]
+                            [width 500]
+                            [height 700]
+                            ))
+    ;;Editing canvas
+    (define (do-stuff-paint paint-canvas paint-dc)
+      (do-more-stuff-paint listy paint-canvas paint-dc))
+
+    (define (do-more-stuff-paint paint-listy paint-canvas paint-dc)
+      (if (null? paint-listy)
+          '()
+          (begin
+            (re-draw-message (get-username-from-list (car paint-listy))
+                             (get-message-from-list (car paint-listy))
+                             (get-color-from-list (car paint-listy))
+                             (get-height-from-list (car paint-listy)))
+            (do-more-stuff-paint (cdr paint-listy) paint-canvas paint-dc))))
+
+    (define read-canvas (new canvas%
+                             [parent main-frame]
+                             [paint-callback do-stuff-paint]
+                             [style '(hscroll vscroll)]
+                             ))
+
+    (send read-canvas init-auto-scrollbars #f #f 0 0);Start with no scrollbars
+    ;;text-field stuff
+    (define (text-feild-callback callback-type other-thing)
+      (if (equal? 'text-field-enter (send other-thing get-event-type))
+          (button-do-stuff 'irrelevant 'not-used)
+          '()))
+    
+    (define input (new text-field%
+                       [parent main-frame]
+                       [label "Username:"]
+                       [callback text-feild-callback]
+                       ))
+    ;;button stuff
+    (define (button-do-stuff b e);b and e do nothing :/
+      (begin
+        (if (color-change-request? (send input get-value))
+            (set! my-color (get-color-from-input (send input get-value)))
+            (if (< 0 (string-length (send input get-value)))
+                (send-message (send input get-value) my-color);;
+                '()))
+        (send input set-value "")
+        ))
+    (define send-button (new button%
+                             [parent main-frame]
+                             [label "Send"]
+                             [callback button-do-stuff]))
+    ;;I forget what these do but don't move them
+    (define dc (send read-canvas get-dc))
+    (send dc set-scale 1 1)
+    (send dc set-text-foreground "black")
+    ;;messaging stuff
+
+    (define (user-message-parse string start)
+      (begin
+        (define (helper str index)
+          (if (eq? (string-ref str (+ start index)) #\~)
+              (substring str start (+ start index))
+              (helper str (+ index 1))))
+        (helper string 0)))
+    
+    (define (user-message onetrueinput)
+      (begin
+        (define username (user-message-parse onetrueinput 0))
+        (define input (user-message-parse onetrueinput  (+ 1(string-length username))))
+        (define color (substring onetrueinput (+ 2 (string-length username) (string-length input))))
+        (send dc set-text-foreground color)
+        (send dc draw-text (string-append username ":" input) 0 height)
+        (set! listy (appendlist listy (list username input color height)))
+        (set! height (+ height 15))
+        (set! min-v-size (+ min-v-size 15))
+        (if (> (* 20 (string-length input)) min-h-size)
+            (set! min-h-size (* 20 (string-length input)))
+            '())
+        (send read-canvas init-auto-scrollbars min-h-size min-v-size 0 1)
+        ))
+    ;;Add a function that parces input from a string and extracts elements
+
+    ;;This probably won't change...
+    (define (send-message input color)
+      (user-message (string-append name "~" input "~" color)))
+    ;;Although re-draw is kind of misleading, it is just print the whole
+    ;;list of strings to the screen
+    (define (re-draw-message username input color in-height)
+      (begin
+        (send dc set-text-foreground color)
+        (send dc draw-text (string-append username ":" input) 0 in-height)
+        ))
+
+    (define (update given-list)
+      (begin (set! listy '())
+             (set! height 0)
+             (update-helper given-list)))
+
+    (define (update-helper given-list)
+      (if (null? given-list)
+          '()
+          (if (null? (car given-list))
+              '()
+              (begin (user-message
+                      (get-username-from-list (car given-list))
+                      (get-message-from-list (car given-list))
+                      (get-color-from-list (car given-list)))
+                     (update-helper (cdr given-list))))))
+    
+    ;;Variables go below functions
+    (define name "Me")
+    (define min-h-size 80)
+    (define min-v-size 30)
+    (define listy (list (list "Server" "Connected" "Red" 0)))
+    (define my-color "black")
+    (define height 15)
+    ;;dispatch goes below that
+    (define (dispatch command)
+      (cond ((eq? command 'show) (send main-frame show #t))
+            ((eq? command 'send) send-message)
+            ((eq? command 'set-name) (lambda (newname) (if (string? newname)
+                                                  (set! name newname)
+                                                  (print "Thats not good"))))
+            ((eq? command 'recieve-message) user-message)
+            ((eq? command 'get-list) listy)
+            ((eq? command 'set-list) update)
+            ;;Something up with that
+            (else (error "Invalid Request" command))
+            ))
+    ;;dispatch goes below that
+    dispatch))
+
+
+;This one displays information
+
+
+
+
+;Initilize scrolling
+
+;Then we need to find out if we need them or not.
+
+;Listy is going to be a list of lists of strings
+;each element in listy will contain three strings
+;the username the message they said and the color they used
+;The the height the message should display at
+
+
+(define (appendlist listoflist add-to-end)
+  (if (null? listoflist)
+      (cons add-to-end '())
+      (cons (car listoflist) (appendlist (cdr listoflist) add-to-end))))
+
+(define (get-username-from-list in-list)
+  (car in-list))
+
+(define (get-message-from-list in-list)
+  (car (cdr in-list)))
+
+(define (get-color-from-list in-list)
+  (car (cdr (cdr in-list))))
+
+(define (get-height-from-list in-list)
+  (car (cdr (cdr (cdr in-list)))))
+
+
+
+;this one is a crap version of justpressing the enter key
+(define (color-change-request? given-string)
+  (if (> (string-length given-string) 7)
+      (if (equal? (substring given-string 0 6) "/color")
+          #t
+          #f)
+      #f))
+
+(define (get-color-from-input given-string)
+  (substring given-string 7))
+;(define thing1 (make-gui))
+;(define thing2 (make-gui))
+