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bug#3865: marked as done (23.0.95; doc-view-mode with PDF without PNG su


From: Emacs bug Tracking System
Subject: bug#3865: marked as done (23.0.95; doc-view-mode with PDF without PNG support)
Date: Fri, 17 Jul 2009 19:50:04 +0000

Your message dated Fri, 17 Jul 2009 15:44:39 -0400
with message-id <address@hidden>
and subject line Re: Patch for #3865: Would somebody please commit on HEAD and 
branch?
has caused the Emacs bug report #3865,
regarding 23.0.95; doc-view-mode with PDF without PNG support
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact address@hidden
immediately.)


-- 
3865: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=3865
Emacs Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: 23.0.95; doc-view-mode with PDF without PNG support Date: Thu, 16 Jul 2009 11:01:43 +0200 User-agent: Internet Messaging Program (IMP) H3 (4.1.5)
Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

To reproduce:

   M-x toggle-debug-on-error RET
   M-x toggle-debug-on-quit RET
   C-x C-f some-pdf-file.pdf

I get the message:

    No PNG support available or some conversion utility for pdf files is
    missing.  Type C-c C-c to switch to fundamental-mode, C-c C-t to
    show the doc as text in a separate buffer or k to kill this buffer.

I don't have the png-DLL installed:
  (image-type-available-p 'png) -> nil
Maybe also some of the conversion programs are not installed. But I just wanted to view/edit the PDF file.

Problems:

- The message is too long to be read in the echo area.

- When pressing some key (e.g. `down'), I get "image-next-line: Invalid
  image specification". So the first message disappears as soon as the
  user does a movement.

This hit me several times.  I didn't realize the message so I killed the
buffer and used `find-file-literally'.

I think the right behavior would be either...

(1) Switch to fundamental-mode automatically if doc-view-mode cannot do
    anything useful and just display a message.

(2) Instead of telling about `C-c C-c', `C-c C-t' and `k', use a
    (y-or-n-p) dialog.

In GNU Emacs 23.0.95.1 (i386-mingw-nt6.0.6001)
 of 2009-06-20 on SOFT-MJASON
Windowing system distributor `Microsoft Corp.', version 6.0.6001
configured using `configure --with-gcc (3.4)'

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: DEU
  value of $XMODIFIERS: nil
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Debugger

Minor modes in effect:
  show-paren-mode: t
  savehist-mode: t
  recentf-mode: t
  msb-mode: t
  iswitchb-mode: t
  desktop-save-mode: t
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <tool-bar> <server-start>
<help-echo> <help-echo> <down-mouse-1> <mouse-1> C-x
C-f <up> <up> <up> <up> C-g M-x t o g g <tab> d e <tab>
e <tab> <return> M-x <up> <end> <backspace> <backspace>
<backspace> <backspace> <backspace> q <tab> <return>
C-x C-f <up> <up> <up> <return> <down> M-x r e p o
r t - e m <tab> <return>

Recent messages:
Cleaning up the recentf list...done (0 removed)
No desktop file.
For information about GNU Emacs and the GNU system, type C-h C-a.
Quit
Debug on Error enabled globally
Debug on Quit enabled globally
No PNG support available or some conversion utility for pdf files is missing. Type C-c C-c to switch to fundamental-mode, C-c C-t to show the doc as text in a separate buffer or k to kill this buffer.
Error during redisplay: (wrong-type-argument numberp nil)
Entering debugger...
Error during redisplay: (wrong-type-argument numberp nil) [4 times]

*Backtrace*:
Debugger entered--Lisp error: (error "Invalid image specification")
  image-size(nil)
  image-next-line(1)
  call-interactively(image-next-line nil nil)


Bye, Reiner


--- End Message ---
--- Begin Message --- Subject: Re: Patch for #3865: Would somebody please commit on HEAD and branch? Date: Fri, 17 Jul 2009 15:44:39 -0400 User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.96 (gnu/linux)
Tassilo Horn <address@hidden> writes:

> this patch fixes the inconveniences Reiner pointed out in #3865.  Could
> somebody please commit it for me on branch and head?

I've checked it into the trunk.  I don't think this is serious enough to
commit to the branch.

--- End Message ---

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