/usr/share/tcltk/tk8.5/ttk/fonts.tcl is in libtk8.5 8.5.19-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Font specifications.
#
# This file, [source]d at initialization time, sets up the following
# symbolic fonts based on the current platform:
#
# TkDefaultFont -- default for GUI items not otherwise specified
# TkTextFont -- font for user text (entry, listbox, others)
# TkFixedFont -- standard fixed width font
# TkHeadingFont -- headings (column headings, etc)
# TkCaptionFont -- dialog captions (primary text in alert dialogs, etc.)
# TkTooltipFont -- font to use for tooltip windows
# TkIconFont -- font to use for icon captions
# TkMenuFont -- used to use for menu items
#
# In Tk 8.5, some of these fonts may be provided by the TIP#145 implementation
# (On Windows and Mac OS X as of Oct 2007).
#
# +++ Platform notes:
#
# Windows:
# The default system font changed from "MS Sans Serif" to "Tahoma"
# in Windows XP/Windows 2000.
#
# MS documentation says to use "Tahoma 8" in Windows 2000/XP,
# although many MS programs still use "MS Sans Serif 8"
#
# Should use SystemParametersInfo() instead.
#
# Mac OSX / Aqua:
# Quoth the Apple HIG:
# The _system font_ (Lucida Grande Regular 13 pt) is used for text
# in menus, dialogs, and full-size controls.
# [...] Use the _view font_ (Lucida Grande Regular 12pt) as the default
# font of text in lists and tables.
# [...] Use the _emphasized system font_ (Lucida Grande Bold 13 pt)
# sparingly. It is used for the message text in alerts.
# [...] The _small system font_ (Lucida Grande Regular 11 pt) [...]
# is also the default font for column headings in lists, for help tags,
# and for small controls.
#
# Note that the font for column headings (TkHeadingFont) is
# _smaller_ than the default font.
#
# There does not appear to be any recommendations for fixed-width fonts.
#
# X11:
# Need a way to tell if Xft is enabled or not.
# For now, assume patch #971980 applied.
#
# "Classic" look used Helvetica bold for everything except
# for entry widgets, which use Helvetica medium.
# Most other toolkits use medium weight for all UI elements,
# which is what we do now.
#
# Font size specified in pixels on X11, not points.
# This is Theoretically Wrong, but in practice works better; using
# points leads to huge inconsistencies across different servers.
#
namespace eval ttk {
variable tip145 [catch {font create TkDefaultFont}]
catch {font create TkTextFont}
catch {font create TkHeadingFont}
catch {font create TkCaptionFont}
catch {font create TkTooltipFont}
catch {font create TkFixedFont}
catch {font create TkIconFont}
catch {font create TkMenuFont}
catch {font create TkSmallCaptionFont}
if {!$tip145} {
variable F ;# miscellaneous platform-specific font parameters
switch -- [tk windowingsystem] {
win32 {
# In safe interps there is no osVersion element.
if {[info exists tcl_platform(osVersion)]} {
if {$tcl_platform(osVersion) >= 5.0} {
set F(family) "Tahoma"
} else {
set F(family) "MS Sans Serif"
}
} else {
if {[lsearch -exact [font families] Tahoma] != -1} {
set F(family) "Tahoma"
} else {
set F(family) "MS Sans Serif"
}
}
set F(size) 8
font configure TkDefaultFont -family $F(family) -size $F(size)
font configure TkTextFont -family $F(family) -size $F(size)
font configure TkHeadingFont -family $F(family) -size $F(size)
font configure TkCaptionFont -family $F(family) -size $F(size) \
-weight bold
font configure TkTooltipFont -family $F(family) -size $F(size)
font configure TkFixedFont -family Courier -size 10
font configure TkIconFont -family $F(family) -size $F(size)
font configure TkMenuFont -family $F(family) -size $F(size)
font configure TkSmallCaptionFont -family $F(family) -size $F(size)
}
aqua {
set F(family) "Lucida Grande"
set F(fixed) "Monaco"
set F(menusize) 14
set F(size) 13
set F(viewsize) 12
set F(smallsize) 11
set F(labelsize) 10
set F(fixedsize) 11
font configure TkDefaultFont -family $F(family) -size $F(size)
font configure TkTextFont -family $F(family) -size $F(size)
font configure TkHeadingFont -family $F(family) -size $F(smallsize)
font configure TkCaptionFont -family $F(family) -size $F(size) \
-weight bold
font configure TkTooltipFont -family $F(family) -size $F(smallsize)
font configure TkFixedFont -family $F(fixed) -size $F(fixedsize)
font configure TkIconFont -family $F(family) -size $F(size)
font configure TkMenuFont -family $F(family) -size $F(menusize)
font configure TkSmallCaptionFont -family $F(family) -size $F(labelsize)
}
default -
x11 {
if {![catch {tk::pkgconfig get fontsystem} F(fs)] && $F(fs) eq "xft"} {
set F(family) "sans-serif"
set F(fixed) "monospace"
} else {
set F(family) "Helvetica"
set F(fixed) "courier"
}
set F(size) -12
set F(ttsize) -10
set F(capsize) -14
set F(fixedsize) -12
font configure TkDefaultFont -family $F(family) -size $F(size)
font configure TkTextFont -family $F(family) -size $F(size)
font configure TkHeadingFont -family $F(family) -size $F(size) \
-weight bold
font configure TkCaptionFont -family $F(family) -size $F(capsize) \
-weight bold
font configure TkTooltipFont -family $F(family) -size $F(ttsize)
font configure TkFixedFont -family $F(fixed) -size $F(fixedsize)
font configure TkIconFont -family $F(family) -size $F(size)
font configure TkMenuFont -family $F(family) -size $F(size)
font configure TkSmallCaptionFont -family $F(family) -size $F(ttsize)
}
}
unset -nocomplain F
}
}
#*EOF*
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