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edraw-property-editor.el
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;;; edraw-property-editor.el --- Property Editor -*- lexical-binding: t; -*-
;; Copyright (C) 2022 AKIYAMA Kouhei
;; Author: AKIYAMA Kouhei <misohena@gmail.com>
;; Keywords: Graphics,Drawing,SVG
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;;
;;; Code:
(require 'widget)
(require 'wid-edit)
(require 'edraw-util)
(require 'edraw-math)
(require 'edraw-color-picker)
(require 'edraw-editor-util)
(require 'edraw-dom-svg)
(declare-function edraw-node-position "edraw")
(declare-function edraw-node-siblings-count "edraw")
(declare-function edraw-preset-save "edraw" (ui-state type name data))
(declare-function edraw-preset-enum-names "edraw" (ui-state type &optional pred))
(declare-function edraw-preset-load "edraw" (ui-state type name))
(declare-function edraw-preset-delete "edraw" (ui-state type name))
(declare-function edraw-preset-rename "edraw" (ui-state type old-name new-name))
(declare-function edraw-preset-clear "edraw" (ui-state type))
(declare-function edraw-preset-apply "edraw")
;;;; Property Editor Target
;;;;; Base Class
(defclass edraw-properties-holder ()
()
:abstract t)
;;;;; Object Name
(cl-defgeneric edraw-name (object)
"Return the name of OBJECT.")
;;;;; Get/Set Properties
(cl-defgeneric edraw-get-property-info-list (object)
"Return information on all properties that OBJECT can have.
Return a list of property information.
Each list element is an `edraw-svg-prop-info' object.")
(cl-defgeneric edraw-get-property-info (object prop-name)
"Return information on the property with the name specified by PROP-NAME.
Return an `edraw-svg-prop-info' object that holds property information.
The default implementation calls `edraw-get-property-info-list'
and searches it for a property named PROP-NAME."
(edraw-svg-prop-info-info-list-find
(edraw-get-property-info-list object)
prop-name))
(cl-defgeneric edraw-can-have-property-p (object prop-name)
"Return t if OBJECT can have a property named PROP-NAME.
Return nil if the property named PROP-NAME is not valid for OBJECT."
(when (edraw-get-property-info object prop-name)
t))
(cl-defgeneric edraw-get-property (object prop-name)
"Return the value of the property named PROP-NAME of OBJECT.
PROP-NAME is a symbol that identifies a property.")
(cl-defgeneric edraw-set-property (object prop-name value)
"Set the value of the property named PROP-NAME of OBJECT to VALUE.
PROP-NAME is a symbol that identifies a property.
Generally has the same effect as calling `edraw-set-properties'
on an alist with one element.
Use `edraw-set-properties' to change multiple properties at the
same time. It behaves more efficiently and consistently."
(edraw-set-properties object (list (cons prop-name value))))
(cl-defgeneric edraw-set-properties (object prop-alist)
"Set the property values specified in PROP-ALIST to OBJECT.
PROP-ALIST is an alist of (PROP-NAME . VALUE).
PROP-NAME is a symbol that identifies a property.")
(cl-defgeneric edraw-get-all-properties (object)
"Return an alist of all property values that OBJECT has.
For all properties that can be obtained with
`edraw-get-property-info-list', returns an alist of property
values (PROP-NAME . VALUE) obtained by calling
`edraw-get-property'."
(cl-loop for prop-info in (edraw-get-property-info-list object)
collect (let ((prop-name (edraw-svg-prop-info-name prop-info)))
(cons prop-name
(edraw-get-property object prop-name)))))
;;;;; Undo Support
;; @todo It appears to undo changes to OBJECT, but it actually undoes
;; the editor associated with OBJECT. It is difficult to understand
;; because it does not necessarily mean that only changes to OBJECT
;; are undone.
(cl-defgeneric edraw-undo-block-begin (object))
(cl-defgeneric edraw-undo-block-end (object backup))
(cl-defgeneric edraw-undo-all (object))
(cl-defgeneric edraw-last-undo-data (object))
(cl-defgeneric edraw-undo (object))
;;;;; Hook
(cl-defgeneric edraw-add-change-hook (object function &rest args)
"Add a FUNCTION to be called when OBJECT changes.
The arguments passed to the FUNCTION are the expansion of ARGS,
OBJECT, a symbol or other structure representing the type of
change, and additional information (hint) about the change.
(FUNCTION ARGS... OBJECT TYPE HINT)
See `edraw-hook-add'.")
(cl-defgeneric edraw-remove-change-hook (object function &rest args)
"Remove the FUNCTION that is called when OBJECT changes.
Remove the function added with `edraw-add-change-hook'.
FUNCTION and each element of ARGS must be `eq' with those
specified when added.
See `edraw-hook-remove'.")
;;;;; Selection
(cl-defgeneric edraw-select (object)
"Select OBJECT.
The detailed meaning depends on the type of OBJECT.")
;;;;; Settings
(cl-defgeneric edraw-set-all-properties-as-default (object)
"Set all properties of OBJECT to default values for objects of
the same type.")
;;;;; Preset
(cl-defgeneric edraw-preset-type (_presettable)
"Return the preset data type of PRESETTABLE object."
nil)
(cl-defgeneric edraw-preset-subtype (_presettable)
"Return the preset data subtype of PRESETTABLE object."
nil)
(cl-defgeneric edraw-preset-tool-type (_presettable)
nil)
(cl-defgeneric edraw-preset-properties (_presettable)
"Generate preset data properties from PRESETTABLE object and return it."
nil)
(cl-defgeneric edraw-preset-data (presettable)
"Generate preset data from PRESETTABLE object and return it.
To extract more detailed information from the returned preset
data, the following functions may be available:
- `edraw-preset-data-subtype'
- `edraw-preset-data-properties'"
(let ((subtype (edraw-preset-subtype presettable))
(properties (edraw-preset-properties presettable)))
(when properties
(nconc
(when subtype
(list (cons 'subtype subtype)))
(list (cons 'properties properties))))))
(defun edraw-preset-data-subtype (data)
"Get subtype from DATA created by `edraw-preset-data' function."
(alist-get 'subtype data))
(defun edraw-preset-data-properties (data)
"Get properties from DATA created by `edraw-preset-data' function."
(alist-get 'properties data))
(defun edraw-preset-name-special (category subtype)
(list 'special category subtype))
(defun edraw-preset-name-special-p (name)
(and (listp name) (eq (car name) 'special)))
(defun edraw-preset-name-special-category (name) (nth 1 name))
(defun edraw-preset-name-special-subtype (name) (nth 2 name))
(defun edraw-preset-name-special-caption (name)
(pcase (edraw-preset-name-special-category name)
('initial-default-shape
(format (edraw-msg "(Initial %s Shape Default)")
;; shape-type to capitalized string
(edraw-msg (capitalize (symbol-name (edraw-preset-name-special-subtype name))))))
('initial-default-shape-for-tool
(format (edraw-msg "(Initial %s Tool Default)")
;; shape-type to capitalized stringe
(let ((tool-class (edraw-preset-name-special-subtype name)))
(if (and (class-p tool-class)
(child-of-class-p tool-class 'edraw-editor-tool))
;; Capitalized and Localized name
(edraw-name tool-class)
(edraw-msg (capitalize (symbol-name tool-class)))))))
('initial-default-marker
(format (edraw-msg "(Initial %s Marker Default)")
;; marker-type to capitalized string
(edraw-msg (capitalize (symbol-name (edraw-preset-name-special-subtype name))))))
;; Unknown
(category
(format "%s" category))))
(defun edraw-preset-name-as-string (name)
(cond
((edraw-preset-name-special-p name)
(edraw-preset-name-special-caption name))
((stringp name) name)
(t (format "%s" name))))
(defun edraw-preset-name-less-p (n1 n2)
(if (edraw-preset-name-special-p n1)
(if (edraw-preset-name-special-p n2)
(string< (format "%s %s"
(edraw-preset-name-special-category n1)
(edraw-preset-name-special-subtype n1))
(format "%s %s"
(edraw-preset-name-special-category n2)
(edraw-preset-name-special-subtype n2)))
t)
(if (edraw-preset-name-special-p n2)
nil
(string< n1 n2))))
;;;;; Type Predicate
(cl-defgeneric edraw-property-editor-shape-p (_object)
"Return non-nil if OBJECT is a derived class of edraw-shape.
Used by the property editor to determine the type of object."
nil)
;;;;; Extra UI
(cl-defgeneric edraw-property-editor-actions (_object)
nil)
(cl-defgeneric edraw-update-from-property-editor (_object)
nil)
;;;;; Implementation with alist
(defclass edraw-alist-properties-holder (edraw-properties-holder)
((prop-info-list :initarg :prop-info-list)
(alist-head :initarg :alist-head) ;;(??? (prop . value) ...)
(editor :initarg :editor)
(name :initarg :name)
(change-hook :initform (edraw-hook-make))
(preset-type :initarg :preset-type :initform nil)
(preset-subtype :initarg :preset-subtype :initform nil)))
(cl-defmethod edraw-set-alist-head ((holder edraw-alist-properties-holder)
alist-head)
(oset holder alist-head alist-head))
(cl-defmethod edraw-set-prop-info-list ((holder edraw-alist-properties-holder)
prop-info-list)
(oset holder prop-info-list prop-info-list))
(cl-defmethod edraw-get-editor ((holder edraw-alist-properties-holder))
(oref holder editor))
(cl-defmethod edraw-name ((holder edraw-alist-properties-holder))
(oref holder name))
(cl-defmethod edraw-undo-block-begin ((_holder edraw-alist-properties-holder)))
(cl-defmethod edraw-undo-block-end ((_holder edraw-alist-properties-holder) _backup))
(cl-defmethod edraw-undo-all ((_holder edraw-alist-properties-holder)))
(cl-defmethod edraw-last-undo-data ((_holder edraw-alist-properties-holder)))
(cl-defmethod edraw-undo ((_holder edraw-alist-properties-holder)))
(cl-defmethod edraw-get-property-info-list ((holder edraw-alist-properties-holder))
(oref holder prop-info-list))
(cl-defmethod edraw-get-property ((holder edraw-alist-properties-holder) prop-name)
(alist-get prop-name (cdr (oref holder alist-head))))
(cl-defmethod edraw-set-properties ((holder edraw-alist-properties-holder) prop-list)
(let (changed)
(dolist (prop prop-list)
(let* ((prop-name (car prop))
(new-value (cdr prop))
(prev (let ((prev (oref holder alist-head)))
(while (and (cdr prev)
(not (eq (caadr prev) prop-name)))
(setq prev (cdr prev)))
prev))
(old-value (cdadr prev)))
(unless (equal new-value old-value)
(cond
;; Remove
((null new-value)
(setcdr prev (cddr prev)))
;; Add
((null (cdr prev))
(setcdr prev (cons (cons prop-name new-value) nil)))
;; Modify
(t
(setcdr (cadr prev) new-value)))
(setq changed t))))
(when changed
(edraw-hook-call (oref holder change-hook) holder 'alist-properties nil))
changed))
(cl-defmethod edraw-add-change-hook ((holder edraw-alist-properties-holder)
function &rest args)
(apply 'edraw-hook-add (oref holder change-hook) function args))
(cl-defmethod edraw-remove-change-hook ((holder edraw-alist-properties-holder)
function &rest args)
(apply 'edraw-hook-remove (oref holder change-hook) function args))
(cl-defmethod edraw-preset-type ((holder edraw-alist-properties-holder))
(oref holder preset-type))
(cl-defmethod edraw-preset-subtype ((holder edraw-alist-properties-holder))
(oref holder preset-subtype))
;;;; Property Editor Variables
(defgroup edraw-faces nil
"Faces in Edraw."
:tag "Edraw Faces"
:group 'edraw)
(defconst edraw-property-editor-push-button-prefix " ")
(defconst edraw-property-editor-push-button-suffix " ")
(defface edraw-widget-button
'((((type x w32 ns) (class color))
:box (:line-width 2 :style released-button)
:background "lightgrey" :foreground "black"))
"Widget button face."
:group 'edraw-faces)
(defface edraw-widget-button-mouse
'((((type x w32 ns) (class color))
:box (:line-width 2 :style released-button)
:background "grey90" :foreground "black")
(t :inverse-video t))
"Widget button mouse face."
:group 'edraw-faces)
(defface edraw-widget-button-pressed
'((((type x w32 ns) (class color))
:box (:line-width 2 :style pressed-button)
:background "lightgrey" :foreground "black")
(t :inverse-video t))
"Widget button pressed face."
:group 'edraw-faces)
(defgroup edraw-property-editor nil
"Edit object properties in list format."
:tag "Edraw Property Editor"
:prefix "edraw-property-editor-"
:group 'edraw-editor)
(defcustom edraw-property-editor-apply-immediately t
"non-nil means that the entered value will be reflected immediately."
:group 'edraw-property-editor
:type 'boolean)
(defcustom edraw-property-editor-tracking-selected-shape t
"non-nil means to switch the editing target of the property
editor when the selected shape changes."
:group 'edraw-property-editor
:type 'boolean)
(defun edraw-property-editor-tracking-selected-shape-p ()
edraw-property-editor-tracking-selected-shape)
(defcustom edraw-property-editor-close-on-remove-shape nil
"non-nil means close the property editor when the editing target is removed."
:group 'edraw-property-editor
:type 'boolean)
(defvar edraw-property-editor-buffer-name "*Easy Draw Property Editor*")
(defvar edraw-property-editor-push-button-map
(let ((km (make-sparse-keymap)))
(define-key km [drag-mouse-1] 'ignore)
(define-key km [double-down-mouse-1] 'edraw-property-editor-widget-button-click)
(define-key km [triple-down-mouse-1] 'edraw-property-editor-widget-button-click)
km))
(defun edraw-property-editor-define-field-map-keys (km)
(define-key km (kbd "C-c C-c") 'edraw-property-editor--apply)
(define-key km (kbd "C-c C-k") 'edraw-property-editor--close)
(define-key km [drag-mouse-1] 'ignore)
(define-key km [double-mouse-1] 'ignore)
(define-key km [triple-mouse-1] 'ignore)
(define-key km [down-mouse-2] 'ignore)
(define-key km [mouse-2] 'edraw-property-editor--close)
(define-key km [mouse-3] 'edraw-property-editor--menu)
(define-key km [C-wheel-down] 'edraw-property-editor-field-wheel-decrease)
(define-key km [C-wheel-up] 'edraw-property-editor-field-wheel-increase))
(defvar edraw-property-editor-field-map
(let ((km (make-sparse-keymap)))
(set-keymap-parent km widget-field-keymap)
(edraw-property-editor-define-field-map-keys km)
km))
(defvar edraw-property-editor-text-map
(let ((km (make-sparse-keymap)))
(set-keymap-parent km widget-text-keymap) ;;For multiline
(edraw-property-editor-define-field-map-keys km)
;;(define-key km (kbd "M-o") #'facemenu-keymap)
(define-key km (kbd "M-o") #'edraw-svg-text-fmt-keymap)
km))
(defvar edraw-property-editor-mode-map
(let ((km (make-sparse-keymap)))
(set-keymap-parent km widget-keymap)
(define-key km (kbd "C-c C-c") 'edraw-property-editor--apply)
(define-key km (kbd "C-c C-k") 'edraw-property-editor--close)
(define-key km (kbd "q") 'edraw-property-editor--close) ;; local-map property is set on field, so q can be input.
(define-key km [drag-mouse-1] 'ignore)
(define-key km [double-mouse-1] 'ignore)
(define-key km [double-down-mouse-1] 'ignore)
(define-key km [triple-mouse-1] 'ignore)
(define-key km [down-mouse-2] 'ignore)
(define-key km [mouse-2] 'edraw-property-editor--close)
(define-key km [mouse-3] 'edraw-property-editor--menu)
km))
;;;; Major Mode
(define-derived-mode edraw-property-editor-mode nil "Eprops"
;; Disable context-menu-mode
(setq-local minor-mode-overriding-map-alist
'((context-menu-mode . nil)))
;; Disable indentation
(setq-local indent-line-function
#'edraw-property-editor-mode-indent))
(defun edraw-property-editor-mode-indent ()
nil)
;;;; Property Editor
(defclass edraw-property-editor ()
((buffer :initarg :buffer)
(display :initarg :display)
(target :initform nil)
(widgets)
(update-timer :initform nil)
(last-edit-undo-data :initform nil)
(last-edit-prop-name :initform nil)
(options :initarg :options)
(ui-state :initarg :ui-state)))
(defvar-local edraw-property-editor--pedit nil)
(defun edraw-property-editor-buffer ()
(get-buffer edraw-property-editor-buffer-name))
(defun edraw-property-editor-close ()
(when-let* ((buffer (edraw-property-editor-buffer)))
(with-current-buffer buffer
(when edraw-property-editor--pedit
(edraw-close edraw-property-editor--pedit)))))
(defun edraw-property-editor-open (target &optional options)
(let* ((buffer (get-buffer-create edraw-property-editor-buffer-name))
(ui-state (or (alist-get 'ui-state options)
(edraw-ui-state-object-default)))
;; Get property editor object
(pedit (if-let* ((pedit (with-current-buffer buffer
edraw-property-editor--pedit)))
(progn
;; Update options
(oset pedit options options)
(oset pedit ui-state ui-state)
pedit)
;; New property editor object
(edraw-property-editor-create-object buffer options ui-state))))
(unless (eq target (oref pedit target))
(with-current-buffer buffer
;; Release current target
(edraw-unobserve-target pedit)
;; Activating major mode does following:
;; - Call (kill-all-local-variables)
;; - Call (use-local-map edraw-property-editor-mode-map)
;;@todo need every time?
(edraw-property-editor-mode)
(setq-local edraw-property-editor--pedit pedit)
(edraw-observe-target pedit target)))
;; Open window or frame
(edraw-display-buffer pedit)))
(defun edraw-property-editor-create-object (buffer options ui-state)
(edraw-property-editor
:buffer buffer
:display (edraw-buffer-display
:buffer buffer
:frame-parameters-default
(append
'((title . "Edraw Property Editor"))
edraw-buffer-display-frame-parameters-default)
:frame-parameters-last
(edraw-ui-state-get ui-state 'property-editor 'frame-parameters-last)
:frame-mode
(edraw-ui-state-get ui-state 'property-editor 'frame-mode)
:frame-mode-line-p
(edraw-ui-state-get ui-state 'property-editor 'frame-mode-line-p)
:frame-child-p
(edraw-ui-state-get ui-state 'property-editor 'frame-child-p)
:save-function
(lambda (_obj key value)
(edraw-ui-state-set ui-state 'property-editor key value)
(edraw-ui-state-save ui-state)))
:options options
:ui-state ui-state))
(defun edraw-property-editor-target-shape-p (target)
(and target
;;(cl-typep target 'edraw-shape) ;;warning
(edraw-property-editor-shape-p target)))
(cl-defmethod edraw-observe-target ((pedit edraw-property-editor) new-target)
(with-slots (target) pedit
(edraw-unobserve-target pedit)
(setq target new-target)
(edraw-set-last-edit pedit nil nil)
(edraw-update-buffer pedit)
(edraw-initialize-hooks pedit)))
(cl-defmethod edraw-update-buffer ((pedit edraw-property-editor))
(with-slots (target widgets) pedit
(setq widgets nil)
(let ((inhibit-read-only t))
(erase-buffer))
(remove-overlays)
(setq-local widget-push-button-prefix edraw-property-editor-push-button-prefix)
(setq-local widget-push-button-suffix edraw-property-editor-push-button-suffix)
(setq-local widget-link-prefix "")
(setq-local widget-link-suffix "")
(setq-local widget-button-face 'edraw-widget-button)
(setq-local widget-button-pressed-face 'edraw-widget-button-pressed)
(setq-local widget-mouse-face 'edraw-widget-button-mouse)
;; Title
(unless target
(widget-insert (edraw-msg "No target object") "\n\n"))
(when target
(widget-insert (format (edraw-msg "Properties of %s")
(or (edraw-name target) "")))
;; Prev / Next
(when (edraw-property-editor-target-shape-p target)
(widget-insert " ")
(let* ((beg (point))
(shape-index (edraw-property-editor--shape-index))
(num-shapes (edraw-property-editor--num-shapes))
(num-shapes-digits (if (< num-shapes 10)
1
(1+ (floor (log num-shapes 10)))))
prev next)
(setq prev
(widget-create 'push-button
:notify 'edraw-property-editor--prev
:keymap edraw-property-editor-push-button-map
(edraw-msg "Prev")))
(when (<= shape-index 0)
(widget-apply prev :deactivate))
(widget-insert " "
(format (format "%%%dd/%%%dd"
num-shapes-digits
num-shapes-digits)
(1+ shape-index) num-shapes)
" ")
(setq next
(widget-create 'push-button
:notify 'edraw-property-editor--next
:keymap edraw-property-editor-push-button-map
(edraw-msg "Next")))
(when (>= shape-index (1- num-shapes))
(widget-apply next :deactivate))
;; Align to right
(let ((ui-width (+ (string-width (buffer-substring beg (point)))
4)))
(put-text-property (1- beg) beg 'display
`(space :align-to (- right ,ui-width))))))
(widget-insert "\n"))
;; Actions
(when target
(edraw-property-editor-insert-action-bar target))
;; Properties
(when target
(setq widgets (edraw-insert-property-widgets pedit target 0 0)))
;; Bottom
(edraw-property-editor--update-buffer--button-line target)
(widget-insert "\n")
(widget-setup)
(widget-forward 1) ;;to first field
;; (message
;; (format (substitute-command-keys
;; "\\[edraw-property-editor--apply]: %s \\[edraw-property-editor--close]: %s")
;; (edraw-msg "Apply")
;; (edraw-msg "Close")))
))
(defun edraw-property-editor-insert-action-bar (target)
(when-let* ((widgets (edraw-property-editor-actions target)))
(widget-insert " ")
(dolist (widget-args widgets)
(widget-insert " ")
(apply #'widget-create widget-args))
(widget-insert "\n")))
(cl-defmethod edraw-insert-property-widgets ((pedit edraw-property-editor)
target
margin-left
min-name-width)
(let* ((prop-info-list (edraw-get-property-info-list target))
(max-name-width (when prop-info-list
(apply #'max
(mapcar
(lambda (prop-info)
(string-width
(edraw-property-editor-property-display-name
(edraw-svg-prop-info-name prop-info))))
prop-info-list))))
widgets)
(dolist (prop-info prop-info-list)
(unless (edraw-svg-prop-info-internal-p prop-info)
(push (edraw-create-prop-widget pedit target prop-info
margin-left
(max min-name-width max-name-width))
widgets)))
;; Return widgets
(nreverse widgets)))
(defun edraw-property-editor--update-buffer--button-line (target)
(widget-insert (make-string 2 ? ))
(when target
(when (edraw-property-editor-target-shape-p target)
(widget-create 'push-button
:notify 'edraw-property-editor--set-as-default
:keymap edraw-property-editor-push-button-map
(edraw-msg "Set as default"))
(widget-insert " "))
(when (edraw-preset-type target)
(widget-create 'push-button
:notify 'edraw-property-editor--preset-menu
:keymap edraw-property-editor-push-button-map
(edraw-msg "Preset"))
(widget-insert " "))
(unless edraw-property-editor-apply-immediately
(widget-create 'push-button :notify 'edraw-property-editor--apply
(edraw-msg "Apply"))
(widget-insert " ")))
(widget-create 'push-button :notify 'edraw-property-editor--close
(edraw-msg "Close"))
(widget-insert " ")
(widget-create 'push-button :notify 'edraw-property-editor--menu
(edraw-msg "Menu"))
(widget-insert "\n"))
;;;;; Window/Frame
(cl-defmethod edraw-display-buffer ((pedit edraw-property-editor))
(with-slots (display) pedit
(edraw-display-buffer display)))
;;;;; Event Buffer
(defun edraw-property-editor--buffer-on-last-event ()
;; For mouse event
(if (consp last-command-event)
(window-buffer (posn-window (event-start last-command-event)))
(current-buffer)))
(defmacro edraw-property-editor--with-event-buffer (&rest body)
`(with-current-buffer (edraw-property-editor--buffer-on-last-event)
(when edraw-property-editor--pedit
,@body)))
;;;;; Prop Widget
(cl-defmethod edraw-create-prop-widget ((pedit edraw-property-editor)
target prop-info
margin-left
name-column-width)
(let* ((notify (edraw-create-prop-widget-updator
pedit target prop-info)))
(edraw-property-editor-prop-widget-create-widget
target prop-info margin-left name-column-width notify pedit)))
(defclass edraw-property-editor-prop-widget ()
((widget :initarg :widget)
(target :initarg :target)
(prop-info :initarg :prop-info)))
(cl-defmethod edraw-get-target ((pw edraw-property-editor-prop-widget))
(oref pw target))
(cl-defmethod edraw-widget-delete ((pw edraw-property-editor-prop-widget))
(widget-delete (oref pw widget)))
;;;;;; Prop Widget - Update Property From Widget
(defvar edraw-property-editor-prop-widget--notification-suppressed nil)
(defun edraw-property-editor-prop-widget-value-set-without-notify
(widget new-w-value)
"Same as widget-value-set, but suppresses widget change notifications."
(let ((edraw-property-editor-prop-widget--notification-suppressed t))
(save-excursion ;; `widget-field-value-set' will change the current point!
(widget-value-set widget new-w-value))))
(defun edraw-property-editor-prop-widget-value-set (widget new-w-value)
"Same as widget-value-set, but suppresses property update
once. widget-value-set updates the same property four times."
;; Change widget text without notification
(edraw-property-editor-prop-widget-value-set-without-notify
widget new-w-value)
;; Notify only once
(widget-apply widget :notify widget nil));;event=nil
(cl-defmethod edraw-last-edit-undo-data ((pedit edraw-property-editor))
(oref pedit last-edit-undo-data))
(cl-defmethod edraw-last-edit-prop-name ((pedit edraw-property-editor))
(oref pedit last-edit-prop-name))
(cl-defmethod edraw-set-last-edit ((pedit edraw-property-editor)
undo-data prop-name)
(oset pedit last-edit-undo-data undo-data)
(oset pedit last-edit-prop-name prop-name))
(cl-defmethod edraw-create-prop-widget-updator ((pedit edraw-property-editor)
target
prop-info)
(let ((prop-name (edraw-svg-prop-info-name prop-info)))
(lambda (widget _changed-widget &optional event)
;;(message "on widget changed %s event=%s buffer=%s" (edraw-svg-prop-info-name prop-info) event (current-buffer))
;; Called 4 times per widget-value-set call.
;; 1. delete chars (event=(before-change BEG END))
;; 2. delete chars (event=(after-change BEG END))
;; 3. insert chars (event=(before-change BEG END))
;; 4. insert chars (event=(after-change BEG END))
(when (and
(not (eq (car-safe event) 'before-change)) ;;Ignore before-change
(not edraw-property-editor-prop-widget--notification-suppressed))
(if (eq target (oref pedit target))
;; For top-level target
(when edraw-property-editor-apply-immediately
(progn
;;(message "Set property toplevel value=%s" (widget-value widget))
(edraw-set-target-property-value
pedit prop-name
(edraw-property-editor-widget-value-to-prop-value
(widget-value widget) prop-info))))
;; For sub-level targets
;;(message "Set property sublevel value=%s" (widget-value widget))
;; NOTE: For sub-property, even if
;; edraw-property-editor-apply-immediately is nil, it will
;; be reflected immediately.
;; Because the value must already be reflected in the widget
;; when the Apply button is pressed.
(edraw-set-property
target prop-name
(edraw-property-editor-widget-value-to-prop-value
(widget-value widget) prop-info)))))))
(cl-defmethod edraw-set-target-property-value ((pedit edraw-property-editor)
prop-name prop-value)
(when-let* ((target (oref pedit target)))
(let ((undo-before-change (edraw-last-undo-data target)))
;; Consecutive change to the same target and same property?
(when (and (eq undo-before-change (edraw-last-edit-undo-data pedit))
(eq prop-name (edraw-last-edit-prop-name pedit)))
(edraw-undo target)
(setq undo-before-change (edraw-last-undo-data target)))
;; Change property
;;(message "Set property %s %s" prop-name prop-value)
(edraw-set-property
target
prop-name
prop-value)
;; Record last change
(let ((undo-after-change (edraw-last-undo-data target)))
(if (eq undo-before-change undo-after-change)
;; No undo data generated (Probably same values)
(edraw-set-last-edit pedit nil nil)
;; New undo data generated
(edraw-set-last-edit pedit undo-after-change prop-name))))))
;;;;;; Prop Widget - Create Widget
(defun edraw-property-editor-prop-widget-create-widget (target
prop-info
margin-left
name-column-width
notify
pedit)
(let* ((prop-name (edraw-svg-prop-info-name prop-info))
(prop-value (edraw-get-property target prop-name))
(prop-type (edraw-svg-prop-info-type prop-info))
(prop-number-p (edraw-svg-prop-info-number-p prop-info))
(indent (+ (if (bolp) margin-left 1)
(- name-column-width
(string-width
(edraw-property-editor-property-display-name
prop-name))))))
(cond
(prop-number-p
(edraw-property-editor-create-number-widget
indent target prop-name prop-value prop-info notify))
((eq (car-safe prop-type) 'or)
(edraw-property-editor-create-menu-choice-widget
indent target prop-name prop-value prop-info notify))
((eq prop-type 'paint)
(edraw-property-editor-create-paint-widget
indent target prop-name prop-value prop-info notify
(oref pedit options)))
((eq prop-type 'marker)
(edraw-property-editor-create-marker-widget
(+ margin-left name-column-width)
indent target prop-name prop-value prop-info notify
pedit))
((eq (car-safe prop-type) 'cssdecls)
(edraw-property-editor-create-cssdecls-widget
(+ margin-left name-column-width)
indent target prop-name prop-value prop-info notify
pedit))
((eq prop-type 'text)
(edraw-property-editor-create-text-field-widget
indent target prop-name prop-value prop-info notify
t t))
(t
(edraw-property-editor-create-text-field-widget
indent target prop-name prop-value prop-info notify)))))
(defun edraw-property-editor-property-display-name (prop-name)
"Return display name of the property PROP-NAME on property editor
as a string."
(let ((str (format "%s" prop-name))
(edraw-prefix "data-edraw-"))
(if (string-prefix-p edraw-prefix str)
(concat "(ed)" (substring str (length edraw-prefix)))
str)))
;;;;;; Menu Choice Widget
(defun edraw-property-editor-create-menu-choice-widget (indent
target
prop-name prop-value
prop-info notify)
(widget-insert (make-string indent ? ))
(let* ((prop-required (edraw-svg-prop-info-required-p prop-info))
(prop-type (edraw-svg-prop-info-type prop-info))
(types (if prop-required
(cdr prop-type) ;;skip (or)
;; nullable
(cons nil (cdr prop-type))))
(widget
(apply
#'widget-create
`(menu-choice
:button-prefix widget-push-button-prefix
:button-suffix widget-push-button-suffix
:format ,(format
"%s: %%[%s%%] %%v"
(edraw-property-editor-property-display-name prop-name)
(edraw-msg "Choose"))
:value ,(edraw-property-editor-prop-value-to-widget-value
prop-value prop-info)
:notify ,notify
,@(mapcar
(lambda (item)
(cond
((null item) (list 'item :tag " " :value nil)) ;;If :tag="", show separator
((stringp item) (list 'item :tag item :value item))
;;((symbolp item) (list 'editable-field :tag (symbol-name item)))
))
types)))))
(edraw-property-editor-prop-widget
:widget widget
:target target
:prop-info prop-info)))
;;;;;; Text Field Widget
(defun edraw-property-editor-create-text-field-widget (indent
target
prop-name prop-value
prop-info notify
&optional
multiline
enable-text-props)
(let* ((disp-name (edraw-property-editor-property-display-name prop-name))
(field-indent (make-string (+ indent (length disp-name) 2) ? ))
(_ (widget-insert (make-string indent ? )))
(widget (widget-create
'editable-field
:keymap (if multiline
edraw-property-editor-text-map
edraw-property-editor-field-map)
:format (format "%s: %%v" disp-name)
:value (edraw-property-editor-prop-value-to-widget-value
prop-value prop-info)
:value-get (if enable-text-props
#'edraw--widget-field-value-get
#'widget-field-value-get)
:edraw-indent field-indent
:notify notify))
(prop-widget (edraw-property-editor-prop-widget
:widget widget
:target target
:prop-info prop-info)))
;; Set line-prefix and wrap-prefix for multiline indentation
(let ((beg (1- (widget-field-start widget))) ;;Before value part
(end (1+ (widget-field-end widget)))) ;;Include \n
(put-text-property beg end 'line-prefix field-indent)
(put-text-property beg end 'wrap-prefix field-indent))
;; Return prop widget object
prop-widget))
(defun edraw--widget-field-value-get (widget)
"A variant of `widget-field-value-get' that preserves text properties."
(if-let* ((from (widget-field-start widget))
(to (widget-field-text-end widget)))
(with-current-buffer (widget-field-buffer widget)
(edraw-remove-text-properties-except (buffer-substring from to)
'(face edraw-svg-properties)))
(widget-get widget :value)))
;;;;;; Number Widget