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R&—Ec @ sV d Z d k Z d k Z d e i f d „ ƒ YZ d „ Z e d j o e ƒ n d S( sø Text Widget/Hypertext
Usually, tags modify the appearance of text in the view, e.g. making it
bold or colored or underlined. But tags are not restricted to appearance.
They can also affect the behavior of mouse and key presses, as this demo
shows.Nt
HypertextDemoc B s’ t Z e Z e i i e i i ƒ Z e i i e i i ƒ Z
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t i ƒ S( N( t gtkt main_quit( t w( ( t% /usr/lib/pygtk/2.0/demos/hypertext.pyt <lambda> s i i s key-press-events event-afters motion-notify-events visibility-notify-eventi ( R t Windowt __init__t selft
set_screent parentt
get_screent AttributeErrort connectt set_titlet __class__t __name__t set_default_sizet set_border_widtht TextViewt viewt
set_wrap_modet WRAP_WORDt key_press_eventt event_aftert motion_notify_eventt visibility_notify_eventt
get_buffert buffert ScrolledWindowt swt
set_policyt POLICY_AUTOMATICt addt show_paget show_all( R R R R R ( ( R R s*
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S( N( t eventt keyvalR t gdkt Returnt KP_Entert text_viewR R t get_iter_at_markt
get_insertt itert follow_if_linkt False( R R* R% R R- ( ( R R 0 s
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o n# X| i ƒ | i ƒ j o t Sn | i t i t | i ƒ t | i ƒ ƒ \ } } | i | | ƒ } | i | | ƒ t S( Ni ( R% t typeR R' t BUTTON_RELEASER/ t buttonR* R R t get_selection_boundst startt endt
ValueErrort
get_offsett window_to_buffer_coordst TEXT_WINDOW_WIDGETt intt xt yt get_iter_at_locationR- R R. ( R R* R% R R- R4 R; R< R5 ( ( R R 9 s $c
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| | _ n | i o | i t i ƒ i | i ƒ n | i t i ƒ i | i ƒ d S( Nt pagei ( R/ t hoveringR* R R R= R; R< R- t get_tagst tagst tagt get_dataR> t TrueR t hovering_over_linkt
get_windowR t TEXT_WINDOW_TEXTt
set_cursort hand_cursort regular_cursor(
R R* R; R< RA R R- R> R? RB ( ( R t set_cursor_if_appropriateU s
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R* R8 R R9 R: R% R; R< R RK t windowt get_pointerR/ ( R R* R% R< R; ( ( R R k s
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c C sM | i i ƒ \ } } } | i t i | | ƒ \ } } | i | | | ƒ t
S( N( R* RL RM t wxt wyt modR8 R R9 t bxt byR RK R/ ( R R* R% RR RN RQ RO RP ( ( R R t s c C sE | i d d d d t i ƒ} | i d | ƒ | i | | | ƒ d S( sû Inserts a piece of text into the buffer, giving it the usual
appearance of a hyperlink in a web browser: blue and underlined.
Additionally, attaches some data on the tag, to make it recognizable
as a link.
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foregroundt bluet underlineR> N( R t
create_tagt Nonet pangot UNDERLINE_SINGLERB t set_dataR> t insert_with_tagsR- t text( R R R- R\ R> RB ( ( R t insert_link{ s
c C s, | i d d ƒ | i d ƒ } | d j o` | i | d ƒ | i | | d d ƒ | i | d ƒ | i | | d d ƒ | i | d
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| d | ƒ | i | d ƒ | i | | d
d ƒ n d S( s™ Fills the buffer with text and interspersed links. In any real
hypertext app, this method would parse a file to identify the links.
t i i s Some text to show that simple t hypertexti s can easily be realized with RA i t .sw A tag is an attribute that can be applied to some range of text. For example, a tag might be called "bold" and make the text inside the tag bold. However, the tag concept is more general than that tags don't have to affect appearance. They can instead affect the behavior of mouse and key presses, "lock" a range of text so the user can't edit it, or countless other things.
iÿÿÿÿs Go backt weights hypertext:
sr machine-readable text that is not sequential but is organized so that related items of information are connected.
N( R t set_textt get_iter_at_offsetR- R> t insertR R] RV RW RX t WEIGHT_BOLDRB R[ ( R R R> R- RB ( ( R R# ‡ s(
c C sX | i ƒ } xE | D]= } | i d ƒ } | d j o | i | i ƒ | ƒ Pq q Wd S( sÆ Looks at all tags covering the position of iter in the text view,
and if one of them is a link, follow it by showing the page identified
by the data attached to it.
R> i N(
R- R@ RA RB RC R> R R# R* R ( R R* R- RA RB R> ( ( R R. ¦ s
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__module__R/ RE R R' t Cursort HAND2RI t XTERMRJ RW R R R RK R R R] R# R. ( ( ( R R
s c C s t ƒ t i ƒ d S( N( R R t main( ( ( R Rj ³ s t __main__( t __doc__R RX R R Rj R ( Rj RX R R ( ( R t ? s ¦