branch: elpa/gnuplot
commit ffe6c668a52c10b0a535aabc981ef22d7cc2a05f
Author: Jonathan Oddie <[email protected]>
Commit: joddie <[email protected]>
First shot at implementing inline plot images in process buffer
---
gnuplot.el | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 68 insertions(+)
diff --git a/gnuplot.el b/gnuplot.el
index a58e044..071edd3 100644
--- a/gnuplot.el
+++ b/gnuplot.el
@@ -2255,6 +2255,74 @@ gnuplot process buffer will be displayed in a window."
(switch-to-buffer gnuplot-buffer))))
+;;; --- inline image stuff <JJO>
+(defvar gnuplot-inline-image-filename nil)
+
+(defvar gnuplot-inline-image-mode 0)
+
+(defvar gnuplot-inline-image-timestamp nil)
+
+(defun gnuplot-inline-image-mode (&optional enable)
+ (interactive)
+ (setq enable (or enable
+ (if (zerop gnuplot-inline-image-mode) 1 0)))
+
+ (gnuplot-make-gnuplot-buffer)
+ (with-current-buffer gnuplot-buffer
+ (if (zerop enable)
+ (progn
+ (comint-send-string gnuplot-process "set terminal pop\n")
+ (setq gnuplot-inline-image-mode 0)
+ (remove-hook 'comint-output-filter-functions
+ 'gnuplot-insert-inline-image-output t)
+ (message "Plot output will be displayed on external terminal."))
+ (comint-send-string gnuplot-process "set terminal png\n")
+ (gnuplot-inline-image-set-output)
+ (add-hook 'comint-output-filter-functions
+ 'gnuplot-insert-inline-image-output nil t)
+ (setq gnuplot-inline-image-mode 1)
+ (message "Plot output will be displayed in gnuplot buffer."))))
+
+(defun gnuplot-inline-image-set-output ()
+ (let ((tmp (make-temp-file "gnuplot")))
+ (setq gnuplot-inline-image-filename tmp)
+ (gnuplot-send-hiding-output (format "set output '%s'\n" tmp))))
+
+(defvar gnuplot-hidden-output-buffer " *gnuplot output*")
+
+(defun gnuplot-discard-output (string)
+ (with-current-buffer
+ (get-buffer-create gnuplot-hidden-output-buffer)
+ (insert string)
+ (when (looking-back "gnuplot> ")
+ (with-current-buffer gnuplot-buffer
+ (remove-hook 'comint-preoutput-filter-functions
+ 'gnuplot-discard-output t))))
+ "")
+
+(defun gnuplot-send-hiding-output (string)
+ (with-current-buffer gnuplot-buffer
+ (add-hook 'comint-preoutput-filter-functions
+ 'gnuplot-discard-output nil t))
+ (with-current-buffer (get-buffer-create gnuplot-hidden-output-buffer)
+ (erase-buffer))
+ (comint-send-string gnuplot-process string))
+
+(defun gnuplot-insert-inline-image-output (string)
+ (save-excursion
+ (goto-char (point-max))
+ (beginning-of-line)
+ (when (looking-at "^gnuplot> ")
+ (let* ((filename gnuplot-inline-image-filename)
+ (size (nth 7 (file-attributes filename))))
+ (if (and size (> size 0))
+ (let ((image (create-image filename)))
+ (beginning-of-line)
+ (insert-image image)
+ (insert "\n")
+ (gnuplot-inline-image-set-output)))))))
+
+
;;; --- miscellaneous functions: insert file name, indentation, negation
(defun gnuplot-insert-filename ()
