blob: ce74285a6607c82b76676dc9dbdc7b7a560d81a3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
Shaping
=======
Layout Driver
=============
The PangoLayout object is a highlevel driver that takes an attributed
string and produces lines of glyphs. As well as just implementing
this, there are various improvements that need to be made to
* Figure out better ways of doing line breaks. (This may involve
implementing the TeX/Raph x0-x1 stuff for line breaks.)
X rendering
===========
* The point-size/pixel size handling is not done right. Right
now we are just assuming pixel == point, because trying to
use the point-size fields of the X fonts didn't work on
systems with both 100 and 75 dpi fonts installed.
We should query the X server for its actual reported value
and use that to translate point size to pixel size.
(This doesn't really handle the case of optically scaled
bitmaps properly, but I think that is an ignorable problem.)
Other rendering engines
======================
Somebody should start working on a libart font-system / renderer
soon, to make sure that the interfaces are suitable.
Engines
=======
* Switch engines to be indentified by properties, instead
of hardcoded role/language. (?)
Language Modules
================
* It would be nice to have X based renderers for a few more scripts;
Arabic in particular is one such script.
* Once we have a libart renderer, porting Raph's devanagari shaper
to Pango and C (from Perl) would be a cool demo and test case.
* The clusters set by the current modules need to be set.
Documentation
=============
* Much or all of the X Fonts document from pango.org needs to be moved
into the API reference.
General
=======
* Move font sizes to 1000ths of a point where they are still doubles.
* Remove the extraneous font argument from the script_shape virtual function
in ShapeEngine.
* rename pango_context_set_size() to pango_context_set_font_size()
* PangoAttrList currently takes the policy of "most recent wins"
when multiple attributes of the same type are present for a range.
It would map better on the TkText tag-based API if attributes
also had a depth/priority and "most recent wins" only applied
for attributes of the same priority.
* Add a "make test" target to examples/, add environment variables
to point to module and font alias files, remove the code that
loads these from the current directory. (There are security
implications with the current stuff)
* pango_context_list_fonts() does not properly suppress duplicates
when multiple font maps are involved
* Report errors from functions, these errors include such things.
- Invalid string
- Font does not match
Probably the right thing to do here is to use something very close
to the GConf API ... see Havoc's GException proposal.
* Allow UTF8 strings with embedded NULLs.
* Write a small default shaping engine that only
draws a placeholder character ... and does that in
a way that always works.
* Finish coverting over from utils.c to Tom Tromey's libunicode.
Add the remaining useful functions from utils.c into libunicode.
|
