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bug#15281: 24.3.50; Some tool-bar buttons disappear in GTK3 Emacs


From: Katsumi Yamaoka
Subject: bug#15281: 24.3.50; Some tool-bar buttons disappear in GTK3 Emacs
Date: Fri, 06 Sep 2013 14:08:58 +0900
User-agent: Gnus/5.130008 (真 Gnus v0.8) Emacs/24.3.50 (i686-pc-cygwin)

Jan Djärv wrote:
> Hello.

> Gtk+ does its own enable/disable/selected modifications of images, and
> Emacs can't/shouldn't override that.  So for Gtk+ item 1 to 3 are
> ignored.  Documentation should be updated though.

>       Jan D.

I see.  I'm closing this bug.  Thank you.

> 6 sep 2013 kl. 02:02 skrev Katsumi Yamaoka <address@hidden>:

>> Hi,
>>
>> The Info manual describes as follows:
>>
>> ,---- (info "(Elisp)Tool Bar")
>>|`:image IMAGE'
>>|     IMAGES is either a single image specification or a vector of four
>>|     image specifications.  If you use a vector of four, one of them is
>>|     used, depending on circumstances:
>>|
>>|    item 0
>>|          Used when the item is enabled and selected.
>>|
>>|    item 1
>>|          Used when the item is enabled and deselected.
>>|
>>|    item 2
>>|          Used when the item is disabled and selected.
>>|
>>|    item 3
>>|          Used when the item is disabled and deselected.
>>|
>>|   If IMAGE is a single image specification, Emacs draws the tool bar
>>|button in disabled state by applying an edge-detection algorithm to the
>>|image.
>> `----
>>
>> However, a tool-bar button that has such images is not shown in
>> GTK3 Emacs.  Moreover, LUCID Emacs (i.e. --with-x-toolkit=lucid)
>> shows such a button, however only the `item 1' image is used no
>> matter what circumstance is.
>>
>> This works:
>>
>> (let* ((enable t)
>>       (icon (find-image '((:type xpm :file "cancel.xpm"))))
>>       (keymap
>>      `(keymap
>>        (tool-bar
>>         keymap
>>         (ignore menu-item "IGNORE" ignore
>>                 :enable ,enable :image ,icon)))))
>>  (pop-to-buffer (get-buffer-create "*testing*"))
>>  (use-local-map keymap))
>>
>> This doesn't work as expected:
>>
>> (let* ((enable t)
>>       (icon (vector
>>            (find-image '((:type xpm :file "right-arrow.xpm")))
>>            (find-image '((:type xpm :file "left-arrow.xpm")))
>>            (find-image '((:type xpm :file "cancel.xpm")))
>>            (find-image '((:type xpm :file "close.xpm")))))
>>       (keymap
>>      `(keymap
>>        (tool-bar
>>         keymap
>>         (ignore menu-item "IGNORE" ignore
>>                 :enable ,enable :image ,icon)))))
>>  (pop-to-buffer (get-buffer-create "*testing*"))
>>  (use-local-map keymap))
>>
>> Thanks.
>>
>> In GNU Emacs 24.3.50.1 (i686-pc-cygwin, GTK+ Version 3.8.2)
>> of 2013-09-06 on localhost
>> Bzr revision: 114147 address@hidden
>> Windowing system distributor `The Cygwin/X Project', version 11.0.11402000
>> Configured using:
>> `configure --verbose --with-x-toolkit=gtk3 --without-imagemagick
>> --without-dbus --without-gconf --without-gsettings'
>>
>> In GNU Emacs 24.3.50.1 (i686-pc-cygwin, X toolkit, Xaw3d scroll bars)
>> of 2013-09-06 on localhost
>> Bzr revision: 114147 address@hidden
>> Windowing system distributor `The Cygwin/X Project', version 11.0.11402000
>> Configured using:
>> `configure --verbose --with-x-toolkit=lucid --without-imagemagick
>> --without-dbus --without-gconf --without-gsettings'





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