X-Loop: help-debbugs@HIDDEN Subject: bug#53952: 27.1; insert-image sometimes unexpectedly truncates images Resent-From: Markus Triska <triska@HIDDEN> Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> Resent-CC: bug-gnu-emacs@HIDDEN Resent-Date: Sat, 12 Feb 2022 10:13:01 +0000 Resent-Message-ID: <handler.53952.B.164466078030102 <at> debbugs.gnu.org> Resent-Sender: help-debbugs@HIDDEN X-GNU-PR-Message: report 53952 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: 53952 <at> debbugs.gnu.org X-Debbugs-Original-To: bug-gnu-emacs@HIDDEN Received: via spool by submit <at> debbugs.gnu.org id=B.164466078030102 (code B ref -1); Sat, 12 Feb 2022 10:13:01 +0000 Received: (at submit) by debbugs.gnu.org; 12 Feb 2022 10:13:00 +0000 Received: from localhost ([127.0.0.1]:33548 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1nIpOm-0007pS-2l for submit <at> debbugs.gnu.org; Sat, 12 Feb 2022 05:13:00 -0500 Received: from lists.gnu.org ([209.51.188.17]:44884) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <triska@HIDDEN>) id 1nIpOj-0007pK-OA for submit <at> debbugs.gnu.org; Sat, 12 Feb 2022 05:12:58 -0500 Received: from eggs.gnu.org ([209.51.188.92]:47958) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <triska@HIDDEN>) id 1nIpOj-0006Wt-5F for bug-gnu-emacs@HIDDEN; Sat, 12 Feb 2022 05:12:57 -0500 Received: from [78.47.144.35] (port=43524 helo=metalevel.at) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from <triska@HIDDEN>) id 1nIpOV-0002pN-BM for bug-gnu-emacs@HIDDEN; Sat, 12 Feb 2022 05:12:56 -0500 Received: from mt-mbpro.localdomain (localhost [127.0.0.1]) by metalevel.at (Postfix) with ESMTP id D3B5F9C74D for <bug-gnu-emacs@HIDDEN>; Sat, 12 Feb 2022 11:12:38 +0100 (CET) Received: by mt-mbpro.localdomain (Postfix, from userid 501) id 8E33214EA571; Sat, 12 Feb 2022 11:12:37 +0100 (CET) From: Markus Triska <triska@HIDDEN> Date: Sat, 12 Feb 2022 11:12:37 +0100 Message-ID: <m2r188fl62.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Host-Lookup-Failed: Reverse DNS lookup failed for 78.47.144.35 (failed) Received-SPF: none client-ip=78.47.144.35; envelope-from=triska@HIDDEN; helo=metalevel.at X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-Spam-Score: -2.3 (--) X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) To reproduce this issue, please start Emacs with: $ emacs -Q and insert the following forms in the *scratch* buffer: (defun insert-bar (width) (let* ((height 5) (data (with-temp-buffer (insert (format "P1\n%s %s\n" width height)) (dotimes (_ height) (insert (make-string width ?1) "\n")) (buffer-string)))) (insert-image `(image :type pbm :data ,data)) "t")) (progn (insert "\n") (dotimes (_ 3) (insert-bar (/ (window-pixel-width) 3)) (insert " "))) Then evaluate the forms with M-x eval-buffer RET. The code is meant to insert 3 bars of equal length, each 1/3 of the window size in pixels. Unexpectedly, the rightmost bar is much shorter than the other two bars. I say "unexpectedly", because the documentation of insert-image (which is used to insert the image by the forms above) states: "If SLICE is =E2=80=98nil=E2=80=99 or omitted the whole image is insert= ed." Yet, even though SLICE is omitted in the forms above, the whole image is apparently not inserted, only a smaller slice is inserted. If possible, I would like to insert the entire image no matter where it appears in the buffer, even if scrolling is necessary to reveal remaining parts. Is there a way to do this? Thank you a lot! Markus In GNU Emacs 27.1 (build 1, x86_64-apple-darwin15.3.0, X toolkit, Xaw scrol= l bars) of 2020-12-12 built on mt-macbook Windowing system distributor 'The X.Org Foundation', version 11.0.11502000 System Description: Mac OS X 10.11.3 Configured using: 'configure --prefix=3D/opt/local --disable-silent-rules --without-ns --without-dbus --without-gconf --without-libotf --without-m17n-flt --with-gmp --with-gnutls --with-json --with-xml2 --with-modules --infodir /opt/local/share/info/emacs --with-x-toolkit=3Dlucid --without-xaw3d --without-imagemagick --with-xpm --with-jpeg --with-tiff --with-gif --with-png --with-lcms2 --without-rsvg --with-xft 'CFLAGS=3D-pipe -Os -arch x86_64' CPPFLAGS=3D-I/opt/local/include 'LDFLAGS=3D-L/opt/local/lib -Wl,-headerpad_max_install_names -lfreetype -lfontconfig -Wl,-no_pie -arch x86_64'' Configured features: XPM JPEG TIFF GIF PNG GSETTINGS GLIB NOTIFY KQUEUE ACL GNUTLS LIBXML2 FREETYPE HARFBUZZ XFT ZLIB TOOLKIT_SCROLL_BARS LUCID X11 XDBE XIM MODULES THREADS JSON PDUMPER LCMS2 GMP Important settings: value of $LANG: en_US.UTF-8 locale-coding-system: utf-8-unix
Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.505 (Entity 5.505) Content-Type: text/plain; charset=utf-8 X-Loop: help-debbugs@HIDDEN From: help-debbugs@HIDDEN (GNU bug Tracking System) To: Markus Triska <triska@HIDDEN> Subject: bug#53952: Acknowledgement (27.1; insert-image sometimes unexpectedly truncates images) Message-ID: <handler.53952.B.164466078030102.ack <at> debbugs.gnu.org> References: <m2r188fl62.fsf@HIDDEN> X-Gnu-PR-Message: ack 53952 X-Gnu-PR-Package: emacs Reply-To: 53952 <at> debbugs.gnu.org Date: Sat, 12 Feb 2022 10:13:02 +0000 Thank you for filing a new bug report with debbugs.gnu.org. This is an automatically generated reply to let you know your message has been received. Your message is being forwarded to the package maintainers and other interested parties for their attention; they will reply in due course. Your message has been sent to the package maintainer(s): bug-gnu-emacs@HIDDEN If you wish to submit further information on this problem, please send it to 53952 <at> debbugs.gnu.org. Please do not send mail to help-debbugs@HIDDEN unless you wish to report a problem with the Bug-tracking system. --=20 53952: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D53952 GNU Bug Tracking System Contact help-debbugs@HIDDEN with problems
X-Loop: help-debbugs@HIDDEN Subject: bug#53952: 27.1; insert-image sometimes unexpectedly truncates images Resent-From: Eli Zaretskii <eliz@HIDDEN> Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> Resent-CC: bug-gnu-emacs@HIDDEN Resent-Date: Sat, 12 Feb 2022 12:32:02 +0000 Resent-Message-ID: <handler.53952.B53952.164466910218046 <at> debbugs.gnu.org> Resent-Sender: help-debbugs@HIDDEN X-GNU-PR-Message: followup 53952 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: Markus Triska <triska@HIDDEN> Cc: 53952 <at> debbugs.gnu.org Received: via spool by 53952-submit <at> debbugs.gnu.org id=B53952.164466910218046 (code B ref 53952); Sat, 12 Feb 2022 12:32:02 +0000 Received: (at 53952) by debbugs.gnu.org; 12 Feb 2022 12:31:42 +0000 Received: from localhost ([127.0.0.1]:33688 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1nIrYq-0004ZL-9X for submit <at> debbugs.gnu.org; Sat, 12 Feb 2022 07:31:42 -0500 Received: from eggs.gnu.org ([209.51.188.92]:36402) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1nIrYp-0004UF-7c for 53952 <at> debbugs.gnu.org; Sat, 12 Feb 2022 07:31:31 -0500 Received: from [2001:470:142:3::e] (port=38578 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1nIrYj-0001cr-Il; Sat, 12 Feb 2022 07:31:25 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=i3r4JnuzI4ltR7FZ/NObaXE38xw5ZyLipGcH0aTOy4Q=; b=gm59vgNCvBztTDLRXEkf 1ZVDw2q4/EM2/Tk+5vL4brDm5jJMTH8mQYIvn0DHuphigacVVyHaP+j/5cEilFZdl5/nTUkVttMzk O6gi6GxkV1kgULGrI4oh/dHRetkNKAHPuMLYiE/TZreViYgTm9QfuKQdMVBgAyaAemhCMuUS/kjch Cq0X0wrTBg0mf0WWwlyYMy8MkgyjBtw5RV5Pe79sqovddSsOyok4RqNKc7924oMorgg0Q5TCyldtS 8NscxK6RugzS/1w+MteUz99TNq4R8qQQLtdnwqqxs/dfo0C0l5BS8c0G50qEqo36zZog1g0vuDqrm qcYi8IKK2AErxw==; Received: from [87.69.77.57] (port=4125 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1nIrYj-0005HQ-3I; Sat, 12 Feb 2022 07:31:25 -0500 Date: Sat, 12 Feb 2022 14:31:19 +0200 Message-Id: <838rugs1uw.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> In-Reply-To: <m2r188fl62.fsf@HIDDEN> (message from Markus Triska on Sat, 12 Feb 2022 11:12:37 +0100) References: <m2r188fl62.fsf@HIDDEN> MIME-version: 1.0 Content-type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Spam-Score: -2.3 (--) X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Markus Triska <triska@HIDDEN> > Date: Sat, 12 Feb 2022 11:12:37 +0100 > > (defun insert-bar (width) > (let* ((height 5) > (data (with-temp-buffer > (insert (format "P1\n%s %s\n" width height)) > (dotimes (_ height) > (insert (make-string width ?1) "\n")) > (buffer-string)))) > (insert-image `(image :type pbm :data ,data)) "t")) > > (progn > (insert "\n") > (dotimes (_ 3) > (insert-bar (/ (window-pixel-width) 3)) > (insert " "))) > > Then evaluate the forms with M-x eval-buffer RET. > > The code is meant to insert 3 bars of equal length, each 1/3 of the > window size in pixels. > > Unexpectedly, the rightmost bar is much shorter than the other two bars. Emacs doesn't support wrapping of images, it never did. The display engine chops images at the right edge of the window. > I say "unexpectedly", because the documentation of insert-image (which > is used to insert the image by the forms above) states: > > "If SLICE is ‘nil’ or omitted the whole image is inserted." I added a note there about the forced truncation of images. > If possible, I would like to insert the entire image no matter where it > appears in the buffer, even if scrolling is necessary to reveal > remaining parts. Is there a way to do this? No, not with how we display images at this time.
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