U fw%Zã@s$ddlZddlZGdd„deƒZdS)éNc@sneZdZdZddd„Zdd„Zdd„Zd d „Zd d „Zd d„Z dd„Z ddd„Z dd„Z ddd„Z dd„ZdS)ÚMessageranManages messages to the terminal. This includes disabling messages, allowing notifications, and becalming the flow of messages to avoid writing too fast. The speed is a performance thing: writing too much message text can slow an application down a lot (too much work for terminal emulators), and doesn't actually help the user in any way. NcCsŽ|dkr dn||_d|_d|_d|_d|_|p4t ¡|_z|j ¡Wnt k r`d|_YnX|j  ¡srd|_t  ¡|_ |j   |j¡dS)Ngð?TrF)Ú_periodÚenabledÚ_cached_messageÚ_displayed_messageÚ_previous_write_atÚ ttystatusZPhysicalTerminalÚ _terminalZopen_ttyÚIOErrorZhas_capabilitiesZ AreaManagerÚ_areaZ set_terminal)ÚselfZperiodr ©r ú4/usr/lib/python3/dist-packages/ttystatus/messager.pyÚ__init__"s   zMessager.__init__cCs d|_dS)z(Disable all output except notifications.FN©r©r r r rÚdisable7szMessager.disablecCs d|_dS)zEnable output to happen.TNrrr r rÚenable;szMessager.enablecCs| ¡|j|jkS)zIs it time to write now?)Ú_nowrrrr r rÚ time_to_write?szMessager.time_to_writecCst ¡S)zReturn current time.)Útimerr r rrCsz Messager._nowcCs |j ¡S)zReturn terminal width, height.)r Zget_sizerr r rÚget_terminal_sizeHszMessager.get_terminal_sizecCs |j ¡S)N)r Úget_max_line_lengthrr r rrLszMessager.get_max_line_lengthFcCsj|jr`|s| ¡r`|jdk r*|j |j¡t| d¡ƒ}|j |¡|j |¡||_|  ¡|_ ||_ dS)zLWrite message to terminal. Message may be multiple lines. NÚ ) rrrr Zprepare_to_overwriteÚlenÚsplitZ make_spaceZdisplayrrr)r ÚmessageÚforceÚ num_linesr r rÚwriteOs    zMessager.writecCs<|jdk r8t|j d¡ƒ}|j |¡d|_d|_d|_dS)z9Remove currently displayed message from terminal, if any.Nrr)rrrr Z clear_arearr)r rr r rÚclear`s   zMessager.clearcCsb|js |r^| ¡z | |¡| d¡| ¡Wntk rFYnX|jdk r^| |j¡dS)a­Show a notification message string to the user. Notifications are meant for error messages and other things that do not belong in, say, progress bars. Whatever is currently on the terminal is wiped, then the notification message is shown, a new line is started, and the old message is restored. Notifications are written even when the output is not going to a terminal. rN)rr rÚflushr r)r rÚfrr r rÚnotifyjs     zMessager.notifycCs2|jr.|jdk r.| |j¡|jr.|j d¡dS)zFinalize output.Nr)rrrr rr r rÚfinishƒs zMessager.finish)NN)F)F)Ú__name__Ú __module__Ú __qualname__Ú__doc__rrrrrrrrr r#r$r r r rrs   r)rrÚobjectrr r r rÚs