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;;;; CLOG - The Common Lisp Omnificent GUI                                 ;;;;
;;;; (c) 2020-2021 David Botton                                            ;;;;
;;;; License BSD 3 Clause                                                  ;;;;
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;;;; clog-panel.lisp                                                       ;;;;
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(cl:in-package :clog)

;;; clog-panels are for doing layouts, base class for pluggins and custom
;;; widgets.

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;; Implementation - clog-panel
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(defclass clog-panel (clog-element)()
  (:documentation "CLOG Panel objects."))

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;; create-panel ;;
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(defgeneric create-panel (clog-obj &key left top right bottom
				     width height units
				     margin-left margin-top
				     margin-right margin-bottom
				     border-style border-width border-color
				     background-color
				     positioning overflow resizable content
				     style hidden class html-id auto-place)
  (:documentation "Create a new CLOG-Panel as child of
CLOG-OBJ. Optionally you can set the :X, :Y, :WIDTH and :HEIGHT (in
:UNITS defulting to :px, if set to nil unit type must be provided for
x,y,width and height), BORDER-STYLE (see BORDER-STYLE-TYPE),
BORDER-WIDTH, BORDER-COLOR, :POSITIONING (default is :FIXED) (see
POSITIONING-TYPE), :OVERFLOW (default is :CLIP) with :CONTENT (default
\"\") and :RESIZABLE defaults to :NONE. Additional css styles can be
set in :STYLE (default \"\") if :AUTO-PLACE (default t)
place-inside-bottom-of CLOG-OBJ. If hidden is true visiblep is set to
nil. Resizable only works if overflow is set to :SCROLL"))

(defmethod create-panel ((obj clog-obj) &key
					  (left nil)
					  (top nil)
					  (right nil)
					  (bottom nil)
					  (width nil)
					  (height nil)
					  (units :px)
					  (margin-left nil)
					  (margin-top nil)
					  (margin-right nil)
					  (margin-bottom nil)
					  (border-style nil)
					  (border-width nil)
					  (border-color nil)
					  (background-color nil)
					  (positioning :absolute)
					  (overflow :clip)
					  (display nil)
					  (resizable nil)
					  (content "")
					  (style "")			 
					  (hidden nil)
					  (class nil)
					  (html-id nil)
					  (auto-place t))
  (create-child obj (format nil "<div~A style='~A~A~A~A~A~A~A~A~A~A~A~A~A~A~A~A~A~A~A~A'>~A</div>"
			    (if class
				(format nil " class='~A'" (escape-string class))
				"")
			    (if style
				(format nil "~A;" (escape-string style))
				"")
			    (if left
				(format nil "left:~A~A;" left units)
				"")
			    (if top
				(format nil "top:~A~A;" top units)
				"")
			    (if right
				(format nil "right:~A~A;" right units)
				"")
			    (if bottom
				(format nil "bottom:~A~A;" bottom units)
				"")
			    (if margin-left
				(format nil "margin-left:~A~A;" margin-left units)
				"")
			    (if margin-top
				(format nil "margin-top:~A~A;" margin-top units)
				"")
			    (if margin-right
				(format nil "margin-right:~A~A;" margin-right units)
				"")
			    (if margin-bottom
				(format nil "margin-bottom:~A~A;" margin-bottom units)
				"")
			    (if width
				(format nil "width:~A~A;" width units)
				"")
			    (if height
				(format nil "height:~A~A;" height units)
				"")
			    (if border-style
				(format nil "border-style:~A;" border-style)
				"")
			    (if border-width
				(format nil "border-width:~A;" border-width)
				"")
			    (if border-color
				(format nil "border-color:~A;" border-color)
				"")
			    (if background-color
				(format nil "background-color:~A;" background-color)
				"")
			    (if overflow
				(format nil "overflow:~A;" overflow)
				"")
			    (if display
				(format nil "display:~A;" display)
				"")
			    (if resizable
				(format nil "resize:~A;" resizable)
				"")
			    (if positioning
				(format nil "position:~A;"
					(escape-string positioning))
				"")
			    (if hidden
				"visibility:hidden;"
				"")
			    (escape-string content))
		:clog-type  'clog-panel
		:html-id    html-id
		:auto-place auto-place))

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;; Implementation - clog-panel-box-layout
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(defclass clog-panel-box-layout ()
  ((center-panel
    :accessor center-panel
    :documentation "Center Panel")
   (top-panel
    :accessor top-panel
    :documentation "Top Panel")
   (left-panel
    :accessor left-panel
    :documentation "Left Panel")
   (bottom-panel
    :accessor bottom-panel
    :documentation "Bottom Panel")
   (right-panel
    :accessor right-panel
    :documentation "Right Panel"))
  (:documentation "CLOG Panel Box Layout Objects."))

;;;;;;;;;;;;;;;;;;
;; center-panel ;;
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(defgeneric center-panel (clog-panel-box-layout)
  (:documentation "Returns the center panel of a clog-panel-box-layout object."))

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;; top-panel ;;
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(defgeneric top-panel (clog-panel-box-layout)
  (:documentation "Returns the top panel of a clog-panel-box-layout object."))

;;;;;;;;;;;;;;;
;; top-panel ;;
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(defgeneric top-panel (clog-panel-box-layout)
  (:documentation "Returns the top panel of a clog-panel-box-layout object."))

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;; left-panel ;;
;;;;;;;;;;;;;;;;

(defgeneric left-panel (clog-panel-box-layout)
  (:documentation "Returns the left panel of a clog-panel-box-layout object."))

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;; bottom-panel ;;
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(defgeneric bottom-panel (clog-panel-box-layout)
  (:documentation "Returns the bottom panel of a clog-panel-box-layout object."))

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;; create-panel-box-layout ;;
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(defun create-panel-box-layout (clog-obj &key (top-height 50) (left-width 50)
					   (bottom-height 50) (right-width 50)
					   (units "px"))
  "Create a five panel app layout that fills entire contents of CLOG-OBJ."
  (let ((panel-box (make-instance 'clog-panel-box-layout)))
    (setf (top-panel panel-box)
	  (create-panel clog-obj :left 0 :top 0 :right 0 :height top-height :units units))
    (setf (left-panel panel-box)
	  (create-panel clog-obj :left 0 :top 0 :bottom 0 :width left-width
				 :margin-top top-height :margin-bottom bottom-height :units units))
    (setf (right-panel panel-box)
	  (create-panel clog-obj :right 0 :top 0 :bottom 0 :width right-width
				 :margin-top top-height :margin-bottom bottom-height :units units))
    (setf (center-panel panel-box)
	  (create-panel clog-obj :left 0 :top 0 :right 0 :bottom 0
				 :margin-left left-width :margin-top top-height
				 :margin-right right-width :margin-bottom bottom-height :units units))
    (setf (bottom-panel panel-box)
	  (create-panel clog-obj :left 0 :bottom 0 :right 0 :height bottom-height :units units))
    panel-box))