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j o e n d S( s Text Widget/TextView
The GtkTextView widget displays a GtkTextBuffer. One GtkTextBuffer can be displayed
by multiple GtkTextViews. This demo has two views displaying a single buffer, and
shows off the widget's text formatting features.Ni s t imagess gtk-logo-rgb.gifs floppybuddy.gift TextViewDemoc B sJ t Z d d Z d Z d Z d Z d Z d Z d Z RS( Nc C s t i i | y | i | i Wn& t j
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t i S( N( t gtkt main_quit( t w( ( t& /usr/lib64/pygtk/2.0/demos/textview.pyt <lambda> s i i i ($ R t Windowt __init__t selft
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get_screent AttributeErrort connectt set_titlet __class__t __name__t set_default_sizet set_border_widtht VPanedt vpanedt addt TextViewt view1t
get_buffert buffer_1t view2t ScrolledWindowt swt set_shadow_typet SHADOW_ETCHED_INt
set_policyt POLICY_AUTOMATICt add1t add2t create_tagst insert_textt attach_widgetst Nonet wint show_all( R
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Create a bunch of tags. Note that it's also possible to
create tags with gtk.text_tag_new() then add them to the
tag table for the buffer, text_buffer.create_tag() is
just a convenience function. Also note that you don't have
to give tags a name; pass None for the name to create an
anonymous tag.
In any real app, another useful optimization would be to create
a GtkTextTagTable in advance, and reuse the same tag table for
all the buffers with the same tag set, instead of creating
new copies of the same tags for every buffer.
Tags are assigned default priorities in order of addition to the
tag table. That is, tags created later that affect the same text
property affected by an earlier tag will override the earlier
tag. You can modify tag priorities with
gtk.text_tag_set_priority().
Nt headingt weightt sizei t italict stylet boldt bigi s xx-smallt scales x-larget monospacet familyt blue_foregroundt
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i t bilineari s The text widget can display text with all kinds of nifty attributes. It also supports multiple views of the same buffer; this demo is showing the same buffer in two places.
s
Font styles. R+ s For example, you can have R. s , R0 s , or is monospace(typewriter)R3 R1 s text. s_ It's best not to hardcode specific text sizes; you can use relative sizes as with CSS, such as s xx-smalls or s x-largesY to ensure that your program properly adapts if the user changes the default font size.
s Colors. s Colors such as s a blue foregroundR5 s a red backgroundR8 s or even s a stippled red backgroundR; s2 a stippled blue foreground on solid red backgroundR< s' (select that to read it) can be used.
s$ Underline, strikethrough, and rise. t
StrikethroughRO RP s double underlineRQ RR s , and RT s are all supported.
s Images. s" The buffer can have images in it: s for example.
s Spacing. s5 You can adjust the amount of space before each line.
s. This line has a whole lot of space before it.
R= RL sf You can also adjust the amount of space after each line; this line has a whole lot of space after it.
R? s You can also adjust the amount of space between wrapped lines; this line has extra space between each wrapped line in the same paragraph. To show off wrapping, some filler text: the quick brown fox jumped over the lazy dog. Blah blah blah blah blah blah blah blah blah.
RA s5 Also note that those lines have extra-wide margins.
s
Editability. sg This line is 'locked down' and can't be edited by the user - just try it! You can't delete this line.
RC s
Wrapping. s> This line(and most of the others in this buffer) is word-wrapped, using the proper Unicode algorithm. Word wrap should work in all scripts and languages that GTK+ supports. Let's make this a long paragraph to demonstrate: blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah
s This line has character-based wrapping, and can wrap between any two character glyphs. Let's make this a long paragraph to demonstrate: blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah
RG sV This line has all wrapping turned off, so it makes the horizontal scrollbar appear.
RH s Justification. s%
This line has center justification.
RI s# This line has right justification.
RK s
This line has big wide margins. Text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text.
s Internationalization. s[ You can put all sorts of Unicode text in the buffer.
German(Deutsch Süd) Grüß Gott
Greek(Ελληνικά) Γειά σας
Hebrew שלום
Japanese(日本語)
The widget properly handles bidirectional text, word wrapping, DOS/UNIX/Unicode paragraph separators, grapheme boundaries, and so on using the Pango internationalization framework.
s9 Here's a word-wrapped quote in a right-to-left language:
s وقد بدأ ثلاث من أكثر المؤسسات تقدما في شبكة اكسيون برامجها كمنظمات لا تسعى للربح، ثم تحولت في السنوات الخمس الماضية إلى مؤسسات مالية منظمة، وباتت جزءا من النظام المالي في بلدانها، ولكنها تتخصص في خدمة قطاع المشروعات الصغيرة. وأحد أكثر هذه المؤسسات نجاحا هو »بانكوسول« في بوليفيا.
RU s4 You can put widgets in the buffer: Here's a button: s
and a menu: s and a scale: s and an animation: s finally a text entry: s .
s
This demo doesn't demonstrate all the GtkTextBuffer features; it leaves out, for example: invisible/hidden text(doesn't work in GTK 2, but planned), tab stops, application-drawn areas on the sides of the widget for displaying breakpoints and such...RE ( R R` t pixbuf_new_from_filet
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d | | t i | _ t i } | i t i t i | i i | | i | | i i d d | i i d S( NsC This buffer is shared by a set of nested text views.
Nested view:
s-
Don't do this in real applications, please.
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