From: Evgeny Zajcev <lg.zevlg@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: Alan Third <alan@idiocy.org>, emacs-devel <emacs-devel@gnu.org>
Subject: Re: Hollow cursor under images
Date: Mon, 3 Feb 2020 14:24:01 +0300 [thread overview]
Message-ID: <CAO=W_Zos3yj9Wczy5wBnuC1ivT5OMnMSck25xMqvWqwh-o76vw@mail.gmail.com> (raw)
In-Reply-To: <834kwfo2z5.fsf@gnu.org>
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вт, 28 янв. 2020 г. в 21:22, Eli Zaretskii <eliz@gnu.org>:
> > From: Evgeny Zajcev <lg.zevlg@gmail.com>
> > Date: Tue, 28 Jan 2020 14:55:39 +0300
> > Cc: Alan Third <alan@idiocy.org>, emacs-devel <emacs-devel@gnu.org>
> >
> > I tried to fulfill all the review comments in this updated patch
>
> Thanks. A few minor comments below.
>
> > * buffer.c (cursor-type): Add commentary about (box . WIDTH)
> > cursor-type
>
> End this sentence with a period.
>
> > * xdisp.c (get_specified_cursor_type): Check for `cursor-type' in form
> > (box . WIDTH)
>
> Likewise.
>
> > * xdisp.c (get_window_cursor_type): Check masked image size for
> > (box . WIDTH) cursor-type.
>
> Changes in several functions in the same file should mention the file
> name just once. Like this:
>
> * xdisp.c (get_specified_cursor_type): Check for `cursor-type' in form
> '(box . WIDTH)'.
> ((get_window_cursor_type): Check masked image size for(box . WIDTH)
> cursor-type.
>
> > * doc/emacs/display.texi, doc/emacs/display.texi: Add description
> > for (box . WIDTH) `cursor-type'
> >
> > * etc/NEWS: Add note about (box . WIDTH) `cursor-type'
>
> Period missing at end of each sentence.
>
> > +@code{(box . @var{width})} (box cursor becoming a hollow box under
> > +masked images larger than @var{width} in either dimension),
>
> I think it's better to use "size", not 'width" here, because "width"
> is closely associated with only one dimension, and you mean both. Or
> maybe even "min-size", for better mnemonic value.
>
>
Yes! I like "size" name too
> > +** Support for `(box . WIDTH)' cursor-type. By default, `box' cursor
> > +always has a filled box shape. Unless you specify cursor-type to be
> > +`(box . WIDTH)'. In such case, cursor becomes a hollow box if the
> > +point is under masked image larger than `WIDTH' in any dimension.
>
> The first sentence of a NEWS entry should be alone on the header
> line. That's because NEWS is visited in Outline mode, where users can
> hide the text of the entry, leaving just the headings. So leave only
> the first sentence on the heading line, and move all the rest to the
> body starting from the next line.
>
> Also, we prefer quoting 'like this' in NEWS (and in log messages,
> btw).
>
Here is the updated version, tried to fix all the formatting issues.
--
lg
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From be2b70bd3995f7dd333708ed4a973239b78e13cc Mon Sep 17 00:00:00 2001
From: Zajcev Evgeny <zevlg@yandex.ru>
Date: Mon, 27 Jan 2020 15:49:46 +0300
Subject: [PATCH] Support for (box . SIZE) `cursor-type'
To control minimum size of a masked image under which box cursor
becomes hollow.
* buffer.c (cursor-type): Add commentary about (box . SIZE)
cursor-type.
* xdisp.c (get_specified_cursor_type): Check for `cursor-type' in form
(box . SIZE).
(get_window_cursor_type): Check masked image size for
(box . SIZE) cursor-type.
* doc/emacs/display.texi, doc/emacs/display.texi: Add description
for (box . SIZE) `cursor-type'.
* etc/NEWS: Add note about (box . SIZE) `cursor-type'.
---
doc/emacs/display.texi | 2 ++
doc/lispref/frames.texi | 3 +++
etc/NEWS | 6 ++++++
src/buffer.c | 3 +++
src/xdisp.c | 28 ++++++++++++++--------------
5 files changed, 28 insertions(+), 14 deletions(-)
diff --git a/doc/emacs/display.texi b/doc/emacs/display.texi
index 8444aef..dc6fe3a 100644
--- a/doc/emacs/display.texi
+++ b/doc/emacs/display.texi
@@ -1654,6 +1654,8 @@ Cursor Display
the text shown under the cursor is drawn using the frame's background
color.) To change its shape, customize the buffer-local variable
@code{cursor-type}; possible values are @code{box} (the default),
+@code{(box . @var{SIZE})} (box cursor becoming a hollow box under
+masked images larger than @var{SIZE} pixels in either dimension),
@code{hollow} (a hollow box), @code{bar} (a vertical bar), @code{(bar
. @var{n})} (a vertical bar @var{n} pixels wide), @code{hbar} (a
horizontal bar), @code{(hbar . @var{n})} (a horizontal bar @var{n}
diff --git a/doc/lispref/frames.texi b/doc/lispref/frames.texi
index 2bb505c..70ebe2e 100644
--- a/doc/lispref/frames.texi
+++ b/doc/lispref/frames.texi
@@ -2220,6 +2220,9 @@ Cursor Parameters
@table @code
@item box
Display a filled box. (This is the default.)
+@item (box . @var{SIZE})
+Display a filled box. However, display it as a hollow box if point is
+under masked image larger than @var{SIZE} pixels in either dimension.
@item hollow
Display a hollow box.
@item nil
diff --git a/etc/NEWS b/etc/NEWS
index 5395f2c..27ea895 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -64,6 +64,12 @@ It was declared obsolete in Emacs 27.1.
\f
* Changes in Emacs 28.1
+** Support for '(box . SIZE)' cursor-type.
+By default, 'box' cursor always has a filled box shape. Unless you
+specify cursor-type to be '(box . SIZE)'. In such case, cursor
+becomes a hollow box if the point is under masked image larger than
+'SIZE' pixels in any dimension.
+
\f
* Editing Changes in Emacs 28.1
diff --git a/src/buffer.c b/src/buffer.c
index 5c65d4d..cc7d4e4 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -6247,6 +6247,9 @@ from (abs POSITION). If POSITION is positive, point was at the front
t use the cursor specified for the frame
nil don't display a cursor
box display a filled box cursor
+ (box . SIZE) display a filled box cursor, but make it
+ hollow if cursor is under masked image larger than
+ SIZE pixels in either dimension.
hollow display a hollow box cursor
bar display a vertical bar cursor with default width
(bar . WIDTH) display a vertical bar cursor with width WIDTH
diff --git a/src/xdisp.c b/src/xdisp.c
index 68a504f..038b8e5 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -30741,14 +30741,6 @@ get_specified_cursor_type (Lisp_Object arg, int *width)
return BAR_CURSOR;
}
- if (CONSP (arg)
- && EQ (XCAR (arg), Qbar)
- && RANGED_FIXNUMP (0, XCDR (arg), INT_MAX))
- {
- *width = XFIXNUM (XCDR (arg));
- return BAR_CURSOR;
- }
-
if (EQ (arg, Qhbar))
{
*width = 2;
@@ -30756,11 +30748,16 @@ get_specified_cursor_type (Lisp_Object arg, int *width)
}
if (CONSP (arg)
- && EQ (XCAR (arg), Qhbar)
&& RANGED_FIXNUMP (0, XCDR (arg), INT_MAX))
{
*width = XFIXNUM (XCDR (arg));
- return HBAR_CURSOR;
+
+ if (EQ (XCAR (arg), Qbox))
+ return FILLED_BOX_CURSOR;
+ else if (EQ (XCAR (arg), Qbar))
+ return BAR_CURSOR;
+ else if (EQ (XCAR (arg), Qhbar))
+ return HBAR_CURSOR;
}
/* Treat anything unknown as "hollow box cursor".
@@ -30898,12 +30895,15 @@ get_window_cursor_type (struct window *w, struct glyph *glyph, int *width,
struct image *img = IMAGE_OPT_FROM_ID (f, glyph->u.img_id);
if (img != NULL && IMAGEP (img->spec))
{
- /* Arbitrarily, interpret "Large" as >32x32 and >NxN
+ /* Interpret "large" as >SIZExSIZE and >NxN
+ where SIZE is the value from cursor-type in form (box . SIZE),
where N = size of default frame font size.
- This should cover most of the "tiny" icons people may use. */
+ So, setting cursor-type to (box . 32) should cover most of
+ the "tiny" icons people may use. */
if (!img->mask
- || img->width > max (32, WINDOW_FRAME_COLUMN_WIDTH (w))
- || img->height > max (32, WINDOW_FRAME_LINE_HEIGHT (w)))
+ || (CONSP (BVAR (b, cursor_type))
+ && img->width > max (*width, WINDOW_FRAME_COLUMN_WIDTH (w))
+ && img->height > max (*width, WINDOW_FRAME_LINE_HEIGHT (w))))
cursor_type = HOLLOW_BOX_CURSOR;
}
}
--
2.7.4
next prev parent reply other threads:[~2020-02-03 11:24 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-04 18:14 Hollow cursor under images Evgeny Zajcev
2019-03-04 19:05 ` Eli Zaretskii
2019-03-04 20:04 ` Evgeny Zajcev
2019-03-04 20:22 ` Eli Zaretskii
2019-03-04 20:27 ` Evgeny Zajcev
2019-03-05 3:24 ` Eli Zaretskii
2019-03-04 22:36 ` Alan Third
2019-03-05 10:19 ` Evgeny Zajcev
2019-09-14 11:48 ` Evgeny Zajcev
2020-01-27 12:54 ` Evgeny Zajcev
2020-01-27 18:33 ` Eli Zaretskii
2020-01-28 8:46 ` Evgeny Zajcev
2020-01-28 18:16 ` Eli Zaretskii
2020-01-28 11:55 ` Evgeny Zajcev
2020-01-28 18:22 ` Eli Zaretskii
2020-02-03 11:24 ` Evgeny Zajcev [this message]
2020-02-07 10:12 ` Eli Zaretskii
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