/usr/share/common-lisp/source/mcclim/Examples/text-size-test.lisp is in cl-mcclim-examples 0.9.6.dfsg.cvs20100315-3.
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;;; (c) 2006 David Lichteblau (david@lichteblau.com)
;;; This library is free software; you can redistribute it and/or
;;; modify it under the terms of the GNU Library General Public
;;; License as published by the Free Software Foundation; either
;;; version 2 of the License, or (at your option) any later version.
;;;
;;; This library 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
;;; Library General Public License for more details.
;;;
;;; You should have received a copy of the GNU Library General Public
;;; License along with this library; if not, write to the
;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;;; Boston, MA 02111-1307 USA.
(in-package :clim-demo)
(define-application-frame text-size-test ()
()
(:panes
(canvas :application
:min-width 600
:display-time t
:display-function 'display-canvas)
(text (make-pane 'text-editor :height 200 :value "ytmM"))
(family
(with-radio-box ()
(make-pane 'toggle-button :label "Fixed" :id :fixed)
(radio-box-current-selection
(make-pane 'toggle-button :label "Serif" :id :serif))
(make-pane 'toggle-button :label "Sans Serif" :id :sans-serif)))
(face
(with-radio-box (:type :some-of)
(make-pane 'toggle-button :label "Bold" :id :bold)
(make-pane 'toggle-button :label "Italic" :id :italic)))
(rectangle
(with-radio-box ()
(radio-box-current-selection
(make-pane 'toggle-button :label "Text-Size" :id :text-size))
(make-pane 'toggle-button :label "Text-Bounding-Rectangle" :id :text-bounding-rectangle)))
(size
(make-pane 'slider
:orientation :horizontal
:value 120
:min-value 1
:max-value 1000)))
(:layouts
(default
(vertically ()
(labelling (:label "Text") text)
(horizontally ()
(labelling (:label "Family") family)
(labelling (:label "Face") face)
(labelling (:label "Rectangle") rectangle))
(labelling (:label "Size") size)
canvas))))
(defun draw-vstrecke (stream x y1 y2 &rest args &key ink &allow-other-keys)
(draw-line* stream (- x 10) y1 (+ x 10) y1 :ink ink)
(draw-line* stream (- x 10) y2 (+ x 10) y2 :ink ink)
(apply #'draw-arrow* stream x y1 x y2 args))
(defun draw-hstrecke (stream y x1 x2 &rest args &key ink &allow-other-keys)
(draw-line* stream x1 (- y 10) x1 (+ y 10) :ink ink)
(draw-line* stream x2 (- y 10) x2 (+ y 10) :ink ink)
(apply #'draw-arrow* stream x1 y x2 y args))
(defun legend-text-style ()
(make-text-style :sans-serif :roman :small))
(defun draw-legend (stream &rest entries)
(let* ((style (legend-text-style))
(y 2)
(h (nth-value 1 (text-size stream "dummy" :text-style style))))
(dolist (entry entries)
(when entry
(incf y h)
(let ((y* (+ 0.5 (round (- y (/ h 2))))))
(apply #'draw-line* stream 2 y* 35 y* (cdr entry)))
(draw-text* stream (car entry) 40 y :text-style style)))))
(defmethod display-canvas (frame stream)
(window-clear stream)
(let* ((pane-width (rectangle-width (sheet-region stream)))
(pane-height (rectangle-height (sheet-region stream)))
(str (gadget-value (find-pane-named frame 'text)))
(size (gadget-value (find-pane-named frame 'size)))
(family (gadget-id (gadget-value (find-pane-named frame 'family))))
(faces
(mapcar #'gadget-id (gadget-value (find-pane-named frame 'face))))
(rectangle (gadget-id (gadget-value (find-pane-named frame 'rectangle))))
(face (if (cdr faces) '(:bold :italic) (car faces)))
(style (make-text-style family face size))
(medium (sheet-medium stream)))
(multiple-value-bind (width height final-x final-y baseline)
(text-size stream str :text-style style)
(let* ((x1 (/ (- pane-width width) 2))
(y1 (/ (- pane-height height) 2))
(ybase (+ y1 baseline)))
(draw-text* stream
(format nil "fixed-width-p: ~(~A~)"
(handler-case
(text-style-fixed-width-p style medium)
(error (c)
c)))
2
pane-height
:text-style (legend-text-style))
(draw-legend stream
(list "Ascent"
;; :line-style (make-line-style :dashes '(1.5))
:ink +black+)
(list "Descent" :ink +black+)
(list "Height"
:line-style (make-line-style :thickness 2)
:ink +black+)
(list "Width (Avg.)" :ink +black+)
(list "Baseline" :ink +green+)
(when (eq rectangle :text-bounding-rectangle)
(list "Bounding rectangle" :ink +purple+))
(when (eq rectangle :text-size)
(list "Text size (width/height)" :ink +red+))
(when (eq rectangle :text-size)
(list "Text size (final x/y)" :ink +blue+)))
(draw-vstrecke stream
(- x1 20)
ybase
(- ybase (text-style-ascent style medium))
;; :line-style (make-line-style :dashes '(1.5))
:ink +black+)
(draw-vstrecke stream
(- x1 20)
ybase
(+ ybase (text-style-descent style medium))
:ink +black+)
(draw-vstrecke stream
(- x1 40)
y1
(+ y1 (text-style-height style medium))
:line-style (make-line-style :thickness 2)
:ink +black+)
(draw-hstrecke stream
(- y1 20)
x1
(+ x1 (text-style-width style medium))
:ink +black+)
(draw-line* stream
0 ybase
pane-width ybase
:ink +green+)
(draw-text* stream str x1 ybase :text-style style)
;; Gtkairo's DRAW-TEXT* understands multiple lines.
;; (CLIM-CLX doesn't like multiple lines much.)
;;
;; If we use WRITE-STRING instead of DRAW-TEXT, the frontend will
;; handle the line breaks, but lines 2..n will start at x = 0 rather
;; than x = x1, confusing our diagram.
;;; (setf (stream-cursor-position stream) (values x1 y1))
;;; (with-text-style (stream style)
;;; (write-string str stream))
(ecase rectangle
((:text-size)
(draw-rectangle* stream
x1 y1
(+ x1 width) (+ y1 height)
:ink +red+
:filled nil)
(draw-line* stream
0 (+ y1 final-y)
pane-width (+ y1 final-y)
:ink +blue+)
(draw-line* stream
(+ x1 final-x) 0
(+ x1 final-x) pane-height
:ink +blue+))
((:text-bounding-rectangle)
(multiple-value-bind (left top right bottom)
(climi::text-bounding-rectangle* medium str :text-style style)
(draw-rectangle* stream
(+ x1 left) (+ y1 baseline top)
(+ x1 right) (+ y1 baseline bottom)
:ink +purple+
:filled nil))))))))
(define-text-size-test-command (com-quit-text-size-test :menu "Quit") ()
(frame-exit *application-frame*))
(define-text-size-test-command (com-update-text-size-test :menu "Update") ()
(display-canvas *application-frame*
(frame-standard-output *application-frame*)))
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