X-Loop: help-debbugs@HIDDEN Subject: bug#70697: 30.0.50; Frame parameter alpha-background is ignored for fringe bitmaps & internal borders Resent-From: Aleksandar Dimitrov <mail@HIDDEN> Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> Resent-CC: bug-gnu-emacs@HIDDEN Resent-Date: Wed, 01 May 2024 12:02:02 +0000 Resent-Message-ID: <handler.70697.B.171456492112450 <at> debbugs.gnu.org> Resent-Sender: help-debbugs@HIDDEN X-GNU-PR-Message: report 70697 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: 70697 <at> debbugs.gnu.org X-Debbugs-Original-To: bug-gnu-emacs@HIDDEN Received: via spool by submit <at> debbugs.gnu.org id=B.171456492112450 (code B ref -1); Wed, 01 May 2024 12:02:02 +0000 Received: (at submit) by debbugs.gnu.org; 1 May 2024 12:02:01 +0000 Received: from localhost ([127.0.0.1]:37111 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1s28et-0003Eb-SG for submit <at> debbugs.gnu.org; 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Wed, 1 May 2024 06:52:21 -0400 (EDT) From: Aleksandar Dimitrov <mail@HIDDEN> User-Agent: mu4e 1.12.1; emacs 30.0.50 Date: Wed, 01 May 2024 12:52:58 +0200 Message-ID: <871q6liz1x.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=64.147.123.154; envelope-from=mail@HIDDEN; helo=wfhigh3-smtp.messagingengine.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: 0.7 (/) X-Mailman-Approved-At: Wed, 01 May 2024 08:01:53 -0400 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: -0.3 (/) Hi all, Runinng in any compositing window manager (this includes Wayland with a PGTK build of Emacs, but also X without PGTK), the frame parameter alpha-background is ignored for at least - fringe bitmaps - insets drawn with internal-border-width The resulting visual effect is quite jarring, and makes both of these difficult to use together with transparency. Here's a small emacs -Q script to exhibit the problem: #+begin_src emacs-lisp ;; Turn off scroll bars to make the bugs more visible. (scroll-bar-mode -1) ;; set transparency & internal border width. ;; Note how the internal border is going to be drawn in a solid white colour ;; and will ignore the alpha value. (modify-all-frames-parameters '((alpha-background . 50) (internal-border-width . 20))) (define-fringe-bitmap 'test-bitmap (vector (expt 2 15)) nil 16 '(top t)) ;; Define a face for the fringe that has a different background colour, to ;; more easily discern the fringe bitmap bug from the internal border bug. (make-face 'test-face) (set-face-attribute 'test-face nil :background "pink") ;; Apply a fringe bitmap to all lines in the current buffer. Note how the fringe ;; bitmap is monochrome, but the background colour ignores the global alpha value. (defun apply-fringe-bitmap () "Apply a fringe bitmap to the current buffer to exhibit the transparency bug." (add-text-properties (point-min) (point-max) '(wrap-prefix #(" " 0 1 (display (left-fringe test-bitmap test-face))) line-prefix #(" " 0 1 (display (left-fringe test-bitmap test-face)))))) (add-hook 'emacs-startup-hook #'apply-fringe-bitmap) #+end_src And here's how it looks like: https://aleks.bg/emacs-bug.png (that's my personal home page, not an image hoster.) I would expect the white border around the frame to also be transparent, and the fringe, too. Aleks
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: Aleksandar Dimitrov <mail@HIDDEN> Subject: bug#70697: Acknowledgement (30.0.50; Frame parameter alpha-background is ignored for fringe bitmaps & internal borders) Message-ID: <handler.70697.B.171456492112450.ack <at> debbugs.gnu.org> References: <871q6liz1x.fsf@HIDDEN> X-Gnu-PR-Message: ack 70697 X-Gnu-PR-Package: emacs Reply-To: 70697 <at> debbugs.gnu.org Date: Wed, 01 May 2024 12:02:03 +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 70697 <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 70697: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D70697 GNU Bug Tracking System Contact help-debbugs@HIDDEN with problems
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