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Kim F. Storm 2004-04-29 22:41:05 +00:00
parent a9e5c93275
commit e71caa4ed9
2 changed files with 42 additions and 12 deletions
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29
etc/NEWS
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@ -2013,20 +2013,27 @@ specifies the minimum line height in pixels. If necessary, the line
height it increased by increasing the line's ascent.
If the line-height property value is a float, the minimum line height
is calculated by multiplying the height of the current face font by
the given value.
is calculated by multiplying the default frame line height by the
given value.
If the line-height property value is t, the minimum line height is
the height of the default frame font.
If the line-height property value is a cons (RATIO . FACE), the
minimum line height is calculated as RATIO * height of named FACE.
RATIO is int or float. If FACE is t, it specifies the current face.
If the line-spacing property value is an integer, the value is used as
additional space to put after the display line; this overrides the
default frame line-spacing and any buffer local value of the
line-spacing variable.
If the line-spacing property value is an positive integer, the value
is used as additional pixels to insert after the display line; this
overrides the default frame line-spacing and any buffer local value of
the line-spacing variable.
If the line-spacing property value is a float, the value is multiplied
by the current height of the display row to determine the additional
space to put after the display line.
If the value is a negative integer, the absolute value is used as the
total height of the line, i.e. a varying number of pixels are
inserted after each line to make each line exactly that many pixels high.
If the line-spacing property may be a float or cons, the line spacing
is calculated as specified above for the line-height property.
** The buffer local line-spacing variable may now have a float value,
which is used as a height relative to the default frame line height.
** Enhancements to stretch display properties

23
src/ChangeLog
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@ -1,3 +1,26 @@
2004-04-30 Kim F. Storm <storm@cua.dk>
* buffer.c (syms_of_buffer) <line-spacing>: Allow float value.
* dispextern.h (struct it): Remove member use_default_face.
Add members override_ascent, override_descent, override_boff.
* xdisp.c (init_iterator): Handle line-spacing float value.
Initialize override_ascent member.
(append_space_for_newline): Reset override_ascent.
Remove use_default_face.
(calc_line_height_property): New function to calculate value of
line-height and line-spacing properties. Look at overlays, too.
Set override_ascent, override_descent, override_boff members when
using another face than the current face. Float values are now
relative to the frame default font, by default; accept a cons
of ratio and face name to specify value relative to a specific face.
(x_produce_glyphs): Use calc_line_height_property.
Use override_ascent etc. when set to handle different face heights.
A negative line-spacing property value is interpreted as a total
line height, rather than inter-line spacing.
(note_mouse_highlight): Allocate room for 40 overlays initially.
2004-04-29 Stefan Monnier <monnier@iro.umontreal.ca>
* data.c (Fsubr_name): New fun.