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+;;; powerline-separators.el --- Separators for Powerline
+
+;; Copyright (C) 2012-2013 Donald Ephraim Curtis
+;; Copyright (C) 2013 Jason Milkins
+;; Copyright (C) 2012 Nicolas Rougier
+
+;; This file 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, or (at your option)
+;; any later version.
+
+;; This file 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 <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;
+;; Separators for Powerline.
+;; Included separators: alternate, arrow, arrow-fade, bar, box, brace, butt,
+;; chamfer, contour, curve, rounded, roundstub, slant, wave, zigzag, and nil.
+;;
+
+;;; Code:
+
+(require 'cl-lib)
+(require 'color)
+
+(defvar powerline-image-apple-rgb
+ (and (eq (window-system) 'ns)
+ ns-use-srgb-colorspace
+ (< 11
+ (string-to-number
+ (and (string-match "darwin\\([0-9]+\\)" system-configuration)
+ (match-string-no-properties 1 system-configuration)))))
+ "Boolean variable to determine whether to use Apple RGB colorspace to render images.
+
+t on macOS 10.7+ and `ns-use-srgb-colorspace' is t, nil otherwise.
+
+This variable is automatically set, there's no need to modify it.")
+
+(defun pl/interpolate (color1 color2)
+ "Interpolate between COLOR1 and COLOR2.
+
+COLOR1 and COLOR2 must be supplied as hex strings with a leading #."
+ (let* ((c1 (color-name-to-rgb color1))
+ (c2 (color-name-to-rgb color2))
+ (red (/ (+ (nth 0 c1) (nth 0 c2)) 2))
+ (green (/ (+ (nth 1 c1) (nth 1 c2)) 2))
+ (blue (/ (+ (nth 2 c1) (nth 2 c2)) 2)))
+ (color-rgb-to-hex red green blue)))
+
+(defun pl/color-xyz-to-apple-rgb (X Y Z)
+ "Convert CIE X Y Z colors to Apple RGB color space."
+ (let ((r (+ (* 3.2404542 X) (* -1.5371385 Y) (* -0.4985314 Z)))
+ (g (+ (* -0.9692660 X) (* 1.8760108 Y) (* 0.0415560 Z)))
+ (b (+ (* 0.0556434 X) (* -0.2040259 Y) (* 1.0572252 Z))))
+ (list (expt r (/ 1.8)) (expt g (/ 1.8)) (expt b (/ 1.8)))))
+
+(defun pl/color-srgb-to-apple-rgb (red green blue)
+ "Convert RED GREEN BLUE colors from sRGB color space to Apple RGB.
+RED, GREEN and BLUE should be between 0.0 and 1.0, inclusive."
+ (apply 'pl/color-xyz-to-apple-rgb (color-srgb-to-xyz red green blue)))
+
+(defun pl/hex-color (color)
+ "Get the hexadecimal value of COLOR."
+ (when color
+ (let ((srgb-color (color-name-to-rgb color)))
+ (if powerline-image-apple-rgb
+ (apply 'color-rgb-to-hex (apply 'pl/color-srgb-to-apple-rgb srgb-color))
+ (apply 'color-rgb-to-hex srgb-color)))))
+
+(defun pl/pattern (lst)
+ "Turn LST into an infinite pattern."
+ (when lst
+ (let ((pattern (cl-copy-list lst)))
+ (setcdr (last pattern) pattern))))
+
+(defun pl/pattern-to-string (pattern)
+ "Convert a PATTERN into a string that can be used in an XPM."
+ (concat "\"" (mapconcat 'number-to-string pattern "") "\","))
+
+(defun pl/reverse-pattern (pattern)
+ "Reverse each line in PATTERN."
+ (mapcar 'reverse pattern))
+
+(defun pl/row-pattern (fill total &optional fade)
+ "Make a list that has FILL 0s out of TOTAL 1s with FADE 2s to the right of the fill."
+ (unless fade
+ (setq fade 0))
+ (let ((fill (min fill total))
+ (fade (min fade (max (- total fill) 0))))
+ (append (make-list fill 0)
+ (make-list fade 2)
+ (make-list (- total fill fade) 1))))
+
+(defun pl/pattern-bindings-body (patterns height-exp pattern-height-sym
+ second-pattern-height-sym)
+ "Create let-var bindings and a function body from PATTERNS.
+The `car' and `cdr' parts of the result can be passed to the
+function `pl/wrap-defun' as its `let-vars' and `body' arguments,
+respectively. HEIGHT-EXP is an expression calculating the image
+height and it should contain a free variable `height'.
+PATTERN-HEIGHT-SYM and SECOND-PATTERN-HEIGHT-SYM are symbols used
+for let-var binding variables."
+ (let* ((pattern (pl/pattern (mapcar 'pl/pattern-to-string (car patterns))))
+ (header (mapcar 'pl/pattern-to-string (nth 1 patterns)))
+ (footer (mapcar 'pl/pattern-to-string (nth 2 patterns)))
+ (second-pattern (pl/pattern (mapcar 'pl/pattern-to-string (nth 3 patterns))))
+ (center (mapcar 'pl/pattern-to-string (nth 4 patterns)))
+ (reserve (+ (length header) (length footer) (length center))))
+ (when pattern
+ (cons `((,pattern-height-sym (max (- ,height-exp ,reserve) 0))
+ (,second-pattern-height-sym (/ ,pattern-height-sym 2))
+ (,pattern-height-sym ,(if second-pattern `(ceiling ,pattern-height-sym 2) `,pattern-height-sym)))
+ (list (when header `(mapconcat 'identity ',header ""))
+ `(mapconcat 'identity
+ (cl-subseq ',pattern 0 ,pattern-height-sym) "")
+ (when center `(mapconcat 'identity ',center ""))
+ (when second-pattern
+ `(mapconcat 'identity
+ (cl-subseq ',second-pattern
+ 0 ,second-pattern-height-sym) ""))
+ (when footer `(mapconcat 'identity ',footer "")))))))
+
+(defun pl/pattern-defun (name dir width &rest patterns)
+ "Create a powerline function of NAME in DIR with WIDTH for PATTERNS.
+
+PATTERNS is of the form (PATTERN HEADER FOOTER SECOND-PATTERN CENTER
+PATTERN-2X HEADER-2X FOOTER-2X SECOND-PATTERN-2X CENTER-2X).
+PATTERN is required, all other components are optional.
+The first 5 components are for the standard resolution image.
+The remaining ones are for the high resolution image where both
+width and height are doubled. If PATTERN-2X is nil or not given,
+then the remaining components are ignored and the standard
+resolution image with magnification and interpolation will be
+used in high resolution environments
+
+All generated functions generate the form:
+HEADER
+PATTERN ...
+CENTER
+SECOND-PATTERN ...
+FOOTER
+
+PATTERN and SECOND-PATTERN repeat infinitely to fill the space needed to generate a full height XPM.
+
+PATTERN, HEADER, FOOTER, SECOND-PATTERN, CENTER are of the form ((COLOR ...) (COLOR ...) ...).
+
+COLOR can be one of 0, 1, or 2, where 0 is the source color, 1 is the
+destination color, and 2 is the interpolated color between 0 and 1."
+ (when (eq dir 'right)
+ (setq patterns (mapcar 'pl/reverse-pattern patterns)))
+ (let ((bindings-body (pl/pattern-bindings-body patterns
+ 'height
+ 'pattern-height
+ 'second-pattern-height))
+ (bindings-body-2x (pl/pattern-bindings-body (nthcdr 5 patterns)
+ '(* height 2)
+ 'pattern-height-2x
+ 'second-pattern-height-2x)))
+ (pl/wrap-defun name dir width
+ (append (car bindings-body) (car bindings-body-2x))
+ (cdr bindings-body) (cdr bindings-body-2x))))
+
+(defun pl/background-color (face)
+ (face-attribute face
+ (if (face-attribute face :inverse-video nil 'default)
+ :foreground
+ :background)
+ nil
+ 'default))
+
+(defun pl/wrap-defun (name dir width let-vars body &optional body-2x)
+ "Generate a powerline function of NAME in DIR with WIDTH using LET-VARS and BODY."
+ (let* ((src-face (if (eq dir 'left) 'face1 'face2))
+ (dst-face (if (eq dir 'left) 'face2 'face1)))
+ `(defun ,(intern (format "powerline-%s-%s" name (symbol-name dir)))
+ (face1 face2 &optional height)
+ (when window-system
+ (unless height (setq height (pl/separator-height)))
+ (let* ,(append `((color1 (when ,src-face
+ (pl/hex-color (pl/background-color ,src-face))))
+ (color2 (when ,dst-face
+ (pl/hex-color (pl/background-color ,dst-face))))
+ (colori (when (and color1 color2) (pl/interpolate color1 color2)))
+ (color1 (or color1 "None"))
+ (color2 (or color2 "None"))
+ (colori (or colori "None")))
+ let-vars)
+ (apply 'create-image
+ ,(append `(concat (format "/* XPM */ static char * %s_%s[] = { \"%s %s 3 1\", \"0 c %s\", \"1 c %s\", \"2 c %s\","
+ ,(replace-regexp-in-string "-" "_" name)
+ (symbol-name ',dir)
+ ,width
+ height
+ color1
+ color2
+ colori))
+ body
+ '("};"))
+ 'xpm t
+ :ascent 'center
+ :face (when (and face1 face2)
+ ,dst-face)
+ ,(and body-2x
+ `(and (featurep 'mac)
+ (list :data-2x
+ ,(append `(concat (format "/* XPM */ static char * %s_%s_2x[] = { \"%s %s 3 1\", \"0 c %s\", \"1 c %s\", \"2 c %s\","
+ ,(replace-regexp-in-string "-" "_" name)
+ (symbol-name ',dir)
+ (* ,width 2)
+ (* height 2)
+ color1
+ color2
+ colori))
+ body-2x
+ '("};")))))))))))
+
+(defmacro pl/alternate (dir)
+ "Generate an alternating pattern XPM function for DIR."
+ (pl/pattern-defun "alternate" dir 4
+ '((2 2 1 1)
+ (0 0 2 2))
+ nil nil nil nil
+ ;; 2x
+ '((2 2 2 2 1 1 1 1)
+ (2 2 2 2 1 1 1 1)
+ (0 0 0 0 2 2 2 2)
+ (0 0 0 0 2 2 2 2))))
+
+(defmacro pl/arrow (dir)
+ "Generate an arrow XPM function for DIR."
+ (let ((row-modifier (if (eq dir 'left) 'identity 'reverse)))
+ (pl/wrap-defun "arrow" dir 'middle-width
+ '((width (1- (/ height 2)))
+ (middle-width (1- (ceiling height 2))))
+ `((cl-loop for i from 0 to width
+ concat (pl/pattern-to-string (,row-modifier (pl/row-pattern i middle-width))))
+ (when (cl-oddp height)
+ (pl/pattern-to-string (make-list middle-width 0)))
+ (cl-loop for i from width downto 0
+ concat (pl/pattern-to-string (,row-modifier (pl/row-pattern i middle-width)))))
+ `((when (cl-evenp height)
+ (pl/pattern-to-string (make-list (* middle-width 2) 1)))
+ (cl-loop for i from 0 to (* middle-width 2)
+ concat (pl/pattern-to-string (,row-modifier (pl/row-pattern i (* middle-width 2)))))
+ (cl-loop for i from (* middle-width 2) downto 0
+ concat (pl/pattern-to-string (,row-modifier (pl/row-pattern i (* middle-width 2)))))
+ (when (cl-evenp height)
+ (pl/pattern-to-string (make-list (* middle-width 2) 1)))))))
+
+(defmacro pl/arrow-fade (dir)
+ "Generate an arrow-fade XPM function for DIR."
+ (let* ((row-modifier (if (eq dir 'left) 'identity 'reverse)))
+ (pl/wrap-defun "arrow-fade" dir 'middle-width
+ '((width (1- (/ height 2)))
+ (middle-width (1+ (ceiling height 2))))
+ `((cl-loop for i from 0 to width
+ concat (pl/pattern-to-string (,row-modifier (pl/row-pattern i middle-width 2))))
+ (when (cl-oddp height)
+ (pl/pattern-to-string (,row-modifier (pl/row-pattern (1+ width) middle-width 2))))
+ (cl-loop for i from width downto 0
+ concat (pl/pattern-to-string (,row-modifier (pl/row-pattern i middle-width 2)))))
+ `((when (cl-evenp height)
+ (pl/pattern-to-string (,row-modifier (pl/row-pattern 0 (* middle-width 2) (* 2 2)))))
+ (cl-loop for i from 0 to (* (- middle-width 2) 2)
+ concat (pl/pattern-to-string (,row-modifier (pl/row-pattern i (* middle-width 2) (* 2 2)))))
+ (cl-loop for i from (* (- middle-width 2) 2) downto 0
+ concat (pl/pattern-to-string (,row-modifier (pl/row-pattern i (* middle-width 2) (* 2 2)))))
+ (when (cl-evenp height)
+ (pl/pattern-to-string (,row-modifier (pl/row-pattern 0 (* middle-width 2) (* 2 2)))))))))
+
+(defmacro pl/bar (dir)
+ "Generate a bar XPM function for DIR."
+ (pl/pattern-defun "bar" dir 2
+ '((2 2))))
+
+(defmacro pl/box (dir)
+ "Generate a box XPM function for DIR."
+ (pl/pattern-defun "box" dir 2
+ '((0 0)
+ (0 0)
+ (1 1)
+ (1 1))
+ nil nil nil nil
+ ;; 2x
+ '((0 0 0 0)
+ (0 0 0 0)
+ (0 0 0 0)
+ (0 0 0 0)
+ (1 1 1 1)
+ (1 1 1 1)
+ (1 1 1 1)
+ (1 1 1 1))))
+
+(defmacro pl/brace (dir)
+ "Generate a brace XPM function for DIR."
+ (pl/pattern-defun "brace" dir 4
+ '((0 1 1 1))
+ '((1 1 1 1)
+ (2 1 1 1))
+ '((2 1 1 1)
+ (1 1 1 1))
+ '((0 1 1 1))
+ '((0 2 1 1)
+ (0 2 1 1)
+ (0 0 2 1)
+ (0 0 0 0)
+ (0 0 2 1)
+ (0 2 1 1)
+ (0 2 1 1))
+ ;; 2x
+ '((0 0 1 1 1 1 1 1))
+ '((1 1 1 1 1 1 1 1)
+ (1 1 1 1 1 1 1 1)
+ (2 1 1 1 1 1 1 1)
+ (0 2 1 1 1 1 1 1))
+ '((0 2 1 1 1 1 1 1)
+ (2 1 1 1 1 1 1 1)
+ (1 1 1 1 1 1 1 1)
+ (1 1 1 1 1 1 1 1))
+ '((0 0 1 1 1 1 1 1))
+ '((0 0 2 1 1 1 1 1)
+ (0 0 0 1 1 1 1 1)
+ (0 0 0 2 1 1 1 1)
+ (0 0 0 0 1 1 1 1)
+ (0 0 0 0 2 1 1 1)
+ (0 0 0 0 0 2 1 1)
+ (0 0 0 0 0 0 0 2)
+ (0 0 0 0 0 0 0 2)
+ (0 0 0 0 0 2 1 1)
+ (0 0 0 0 2 1 1 1)
+ (0 0 0 0 1 1 1 1)
+ (0 0 0 2 1 1 1 1)
+ (0 0 0 1 1 1 1 1)
+ (0 0 2 1 1 1 1 1))))
+
+(defmacro pl/butt (dir)
+ "Generate a butt XPM function for DIR."
+ (pl/pattern-defun "butt" dir 3
+ '((0 0 0))
+ '((1 1 1)
+ (0 1 1)
+ (0 0 1))
+ '((0 0 1)
+ (0 1 1)
+ (1 1 1))
+ nil nil
+ ;; 2x
+ '((0 0 0 0 0 0))
+ '((1 1 1 1 1 1)
+ (0 1 1 1 1 1)
+ (0 0 1 1 1 1)
+ (0 0 0 1 1 1)
+ (0 0 0 0 1 1)
+ (0 0 0 0 0 1))
+ '((0 0 0 0 0 1)
+ (0 0 0 0 1 1)
+ (0 0 0 1 1 1)
+ (0 0 1 1 1 1)
+ (0 1 1 1 1 1)
+ (1 1 1 1 1 1))))
+
+(defmacro pl/chamfer (dir)
+ "Generate a chamfer XPM function for DIR."
+ (pl/pattern-defun "chamfer" dir 3
+ '((0 0 0))
+ '((1 1 1)
+ (0 1 1)
+ (0 0 1))
+ nil nil nil
+ ;; 2x
+ '((0 0 0 0 0 0))
+ '((1 1 1 1 1 1)
+ (0 1 1 1 1 1)
+ (0 0 1 1 1 1)
+ (0 0 0 1 1 1)
+ (0 0 0 0 1 1)
+ (0 0 0 0 0 1))))
+
+(defmacro pl/contour (dir)
+ "Generate a contour XPM function for DIR."
+ (pl/pattern-defun "contour" dir 10
+ '((0 0 0 0 0 1 1 1 1 1))
+ '((1 1 1 1 1 1 1 1 1 1)
+ (0 2 1 1 1 1 1 1 1 1)
+ (0 0 2 1 1 1 1 1 1 1)
+ (0 0 0 2 1 1 1 1 1 1)
+ (0 0 0 0 1 1 1 1 1 1)
+ (0 0 0 0 2 1 1 1 1 1))
+ '((0 0 0 0 0 2 1 1 1 1)
+ (0 0 0 0 0 0 1 1 1 1)
+ (0 0 0 0 0 0 2 1 1 1)
+ (0 0 0 0 0 0 0 2 1 1)
+ (0 0 0 0 0 0 0 0 0 0))
+ nil nil
+ ;; 2x
+ '((0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1))
+ '((1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 2 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 2 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1))
+ '((0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0))))
+
+(defmacro pl/curve (dir)
+ "Generate a curve XPM function for DIR."
+ (pl/pattern-defun "curve" dir 4
+ '((0 0 0 0))
+ '((1 1 1 1)
+ (2 1 1 1)
+ (0 0 1 1)
+ (0 0 2 1)
+ (0 0 0 1)
+ (0 0 0 2))
+ '((0 0 0 2)
+ (0 0 0 1)
+ (0 0 2 1)
+ (0 0 1 1)
+ (2 1 1 1)
+ (1 1 1 1))
+ nil nil
+ ;; 2x
+ '((0 0 0 0 0 0 0 0))
+ '((1 1 1 1 1 1 1 1)
+ (1 1 1 1 1 1 1 1)
+ (1 1 1 1 1 1 1 1)
+ (0 0 1 1 1 1 1 1)
+ (0 0 0 2 1 1 1 1)
+ (0 0 0 0 2 1 1 1)
+ (0 0 0 0 0 2 1 1)
+ (0 0 0 0 0 0 1 1)
+ (0 0 0 0 0 0 1 1)
+ (0 0 0 0 0 0 0 1)
+ (0 0 0 0 0 0 0 1)
+ (0 0 0 0 0 0 0 1))
+ '((0 0 0 0 0 0 0 1)
+ (0 0 0 0 0 0 0 1)
+ (0 0 0 0 0 0 0 1)
+ (0 0 0 0 0 0 1 1)
+ (0 0 0 0 0 0 1 1)
+ (0 0 0 0 0 2 1 1)
+ (0 0 0 0 2 1 1 1)
+ (0 0 0 2 1 1 1 1)
+ (0 0 1 1 1 1 1 1)
+ (1 1 1 1 1 1 1 1)
+ (1 1 1 1 1 1 1 1)
+ (1 1 1 1 1 1 1 1))))
+
+(defmacro pl/rounded (dir)
+ "Generate a rounded XPM function for DIR."
+ (pl/pattern-defun "rounded" dir 6
+ '((0 0 0 0 0 0))
+ '((2 1 1 1 1 1)
+ (0 0 2 1 1 1)
+ (0 0 0 0 1 1)
+ (0 0 0 0 2 1)
+ (0 0 0 0 0 1)
+ (0 0 0 0 0 2))
+ nil nil nil
+ ;; 2x
+ '((0 0 0 0 0 0 0 0 0 0 0 0))
+ '((1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 2 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 2 1 1 1 1)
+ (0 0 0 0 0 0 0 0 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 1 1)
+ (0 0 0 0 0 0 0 0 0 0 1 1)
+ (0 0 0 0 0 0 0 0 0 0 2 1)
+ (0 0 0 0 0 0 0 0 0 0 0 1)
+ (0 0 0 0 0 0 0 0 0 0 0 1))))
+
+(defmacro pl/roundstub (dir)
+ "Generate a roundstub XPM function for DIR."
+ (pl/pattern-defun "roundstub" dir 3
+ '((0 0 0))
+ '((1 1 1)
+ (0 0 1)
+ (0 0 2))
+ '((0 0 2)
+ (0 0 1)
+ (1 1 1))
+ nil nil
+ ;; 2x
+ '((0 0 0 0 0 0))
+ '((1 1 1 1 1 1)
+ (2 1 1 1 1 1)
+ (0 0 0 2 1 1)
+ (0 0 0 0 1 1)
+ (0 0 0 0 0 1)
+ (0 0 0 0 0 1))
+ '((0 0 0 0 0 1)
+ (0 0 0 0 0 1)
+ (0 0 0 0 1 1)
+ (0 0 0 2 1 1)
+ (2 1 1 1 1 1)
+ (1 1 1 1 1 1))))
+
+(defmacro pl/slant (dir)
+ "Generate a slant XPM function for DIR."
+ (let* ((row-modifier (if (eq dir 'left) 'identity 'reverse)))
+ (pl/wrap-defun "slant" dir 'width
+ '((width (1- (ceiling height 2))))
+ `((cl-loop for i from 0 to (1- height)
+ concat (pl/pattern-to-string (,row-modifier (pl/row-pattern (/ i 2) width)))))
+ `((cl-loop for i from 0 to (1- (* height 2))
+ concat (pl/pattern-to-string (,row-modifier (pl/row-pattern (/ i 2) (* width 2)))))))))
+
+(defmacro pl/wave (dir)
+ "Generate a wave XPM function for DIR."
+ (pl/pattern-defun "wave" dir 11
+ '((0 0 0 0 0 0 1 1 1 1 1))
+ '((2 1 1 1 1 1 1 1 1 1 1)
+ (0 0 1 1 1 1 1 1 1 1 1)
+ (0 0 0 1 1 1 1 1 1 1 1)
+ (0 0 0 2 1 1 1 1 1 1 1)
+ (0 0 0 0 1 1 1 1 1 1 1)
+ (0 0 0 0 2 1 1 1 1 1 1)
+ (0 0 0 0 0 1 1 1 1 1 1)
+ (0 0 0 0 0 1 1 1 1 1 1)
+ (0 0 0 0 0 2 1 1 1 1 1))
+ '((0 0 0 0 0 0 2 1 1 1 1)
+ (0 0 0 0 0 0 0 1 1 1 1)
+ (0 0 0 0 0 0 0 1 1 1 1)
+ (0 0 0 0 0 0 0 2 1 1 1)
+ (0 0 0 0 0 0 0 0 1 1 1)
+ (0 0 0 0 0 0 0 0 2 1 1)
+ (0 0 0 0 0 0 0 0 0 0 2))
+ nil nil
+ ;; 2x
+ '((0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1))
+ '((1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1))
+ '((0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1)
+ (0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0))))
+
+(defmacro pl/zigzag (dir)
+ "Generate a zigzag pattern XPM function for DIR."
+ (pl/pattern-defun "zigzag" dir 3
+ '((1 1 1)
+ (0 1 1)
+ (0 0 1)
+ (0 0 0)
+ (0 0 1)
+ (0 1 1))
+ nil nil nil nil
+ ;; 2x
+ '((1 1 1 1 1 1)
+ (0 1 1 1 1 1)
+ (0 0 1 1 1 1)
+ (0 0 0 1 1 1)
+ (0 0 0 0 1 1)
+ (0 0 0 0 0 1)
+ (0 0 0 0 0 0)
+ (0 0 0 0 0 1)
+ (0 0 0 0 1 1)
+ (0 0 0 1 1 1)
+ (0 0 1 1 1 1)
+ (0 1 1 1 1 1))))
+
+(defmacro pl/nil (dir)
+ "Generate a XPM function that returns nil for DIR."
+ `(defun ,(intern (format "powerline-nil-%s" (symbol-name dir)))
+ (face1 face2 &optional height)
+ nil))
+
+(defmacro pl/utf-8 (dir)
+ "Generate function that returns raw utf-8 symbols."
+ (let ((dir-name (symbol-name dir))
+ (src-face (if (eq dir 'left) 'face1 'face2))
+ (dst-face (if (eq dir 'left) 'face2 'face1)))
+ `(defun ,(intern (format "powerline-utf-8-%s" dir-name))
+ (face1 face2 &optional height)
+ (powerline-raw
+ (char-to-string ,(intern (format "powerline-utf-8-separator-%s"
+ dir-name)))
+ (list :foreground (pl/background-color ,src-face)
+ :background (pl/background-color ,dst-face)
+ :inverse-video nil)))))
+
+
+(provide 'powerline-separators)
+
+;;; powerline-separators.el ends here
Copyright 2019--2024 Marius PETER