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corrects typos in comments on-mouse-down in tutorial 08

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various little corrections
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cms 2021-02-04 15:29:01 +00:00
parent f2e87287c7
commit 9e327bbb6a
1 changed files with 3 additions and 3 deletions
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6
tutorial/08-tutorial.lisp
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@ -23,11 +23,11 @@
(defun on-mouse-down (obj data) (defun on-mouse-down (obj data)
(let ((app (connection-data-item obj "app-data"))) ; Access our instance of App-Data (let ((app (connection-data-item obj "app-data"))) ; Access our instance of App-Data
(bordeaux-threads:with-lock-held ((drag-mutex app)) ; Insurce the first event received (bordeaux-threads:with-lock-held ((drag-mutex app)) ; Ensure the first event received
(unless (in-drag-p app) ; to drag is the only one, ie only (unless (in-drag-p app) ; to drag is the only one, ie only
(setf (in-drag-p app) t) ; the innermost box is dragged. (setf (in-drag-p app) t) ; the innermost box is dragged.
(let* ((mouse-x (getf data ':screen-x)) ; Use the screen coordinents not (let* ((mouse-x (getf data ':screen-x)) ; Use the screen coordinates not
(mouse-y (getf data ':screen-y)) ; the coordents relative to the obj (mouse-y (getf data ':screen-y)) ; the coordinates relative to the obj
(obj-top (parse-integer (top obj) :junk-allowed t)) (obj-top (parse-integer (top obj) :junk-allowed t))
(obj-left (parse-integer (left obj) :junk-allowed t))) (obj-left (parse-integer (left obj) :junk-allowed t)))
(setf (drag-x app) (- mouse-x obj-left)) (setf (drag-x app) (- mouse-x obj-left))