picoware.system.drivers.vt.vt

class documentation

class vt(uio.IOBase):

Constructor: vt(view_manager)

A virtual terminal that renders text output to the display.

Method	`__init__`	Initialize the virtual terminal for a view manager.
Method	`dryBuffer`	Clear the output buffer and enable input.
Method	`end_batch`	End batch mode and render if needed
Method	`get_screen_size`	Return the terminal dimensions.
Method	`rd`	Read one character from the terminal input buffer.
Method	`rd_raw`	Read one raw character from the terminal input buffer.
Method	`start_batch`	Start batch mode - accumulate writes without rendering
Method	`update`	Update method to be called periodically to handle pending renders
Method	`wr`	Write text to the terminal, handling ANSI escape sequences.
Instance Variable	`char_height`	Undocumented
Instance Variable	`char_width`	Undocumented
Instance Variable	`cursor_visible`	Undocumented
Instance Variable	`cursor_x`	Undocumented
Instance Variable	`cursor_y`	Undocumented
Instance Variable	`draw`	Undocumented
Instance Variable	`input_enabled`	Undocumented
Instance Variable	`input_manager`	Undocumented
Instance Variable	`outputBuffer`	Undocumented
Instance Variable	`screen_height`	Undocumented
Instance Variable	`screen_width`	Undocumented
Instance Variable	`scroll_bottom`	Undocumented
Instance Variable	`scroll_top`	Undocumented
Instance Variable	`storage`	Undocumented
Instance Variable	`terminal_buffer`	Undocumented
Instance Variable	`view_manager`	Undocumented
Method	`_convert_key_to_terminal`	Convert a Picoware button code to a terminal escape sequence.
Method	`_handle_escape_sequence`	Handle an ANSI/VT100 escape sequence.
Method	`_print_char`	Print a character to the terminal buffer.
Method	`_render_terminal`	Render the terminal buffer to the display using C module
Method	`_scroll_up`	Scroll terminal content up by one line
Method	`_updateInternalBuffer`	Poll input and fill the output buffer with terminal sequences.
Instance Variable	`_batch_mode`	Undocumented
Instance Variable	`_comment_color`	Undocumented
Instance Variable	`_last_render_time`	Undocumented
Instance Variable	`_needs_render`	Undocumented
Instance Variable	`_render_enabled`	Undocumented
Instance Variable	`_render_throttle_ms`	Undocumented
Instance Variable	`_string_color`	Undocumented
Instance Variable	`_syntax_map`	Undocumented

def __init__(self, view_manager): ¶

Initialize the virtual terminal for a view manager.

Parameters
view_manager:`ViewManager`	The view manager for draw and input access.

def dryBuffer(self): ¶

Clear the output buffer and enable input.

def end_batch(self): ¶

End batch mode and render if needed

def get_screen_size(self): ¶

Return the terminal dimensions.

Returns
`list`	The screen height and width.

def rd(self): ¶

Read one character from the terminal input buffer.

Returns
`str`	The next buffered character.

def rd_raw(self): ¶

Read one raw character from the terminal input buffer.

Returns
`str`	The next buffered character.

def start_batch(self): ¶

Start batch mode - accumulate writes without rendering

def update(self): ¶

Update method to be called periodically to handle pending renders

def wr(self, text_input): ¶

Write text to the terminal, handling ANSI escape sequences.

Parameters
text_input:`str`	The text to write.

Returns
`int`	The number of characters written.

char_height = ¶

Undocumented

char_width = ¶

Undocumented

cursor_visible: bool = ¶

Undocumented

cursor_x = ¶

Undocumented

cursor_y = ¶

Undocumented

draw = ¶

Undocumented

input_enabled: bool = ¶

Undocumented

input_manager = ¶

Undocumented

outputBuffer = ¶

Undocumented

screen_height = ¶

Undocumented

screen_width = ¶

Undocumented

scroll_bottom = ¶

Undocumented

scroll_top: int = ¶

Undocumented

storage = ¶

Undocumented

terminal_buffer: list = ¶

Undocumented

view_manager = ¶

Undocumented

def _convert_key_to_terminal(self, key): ¶

Convert a Picoware button code to a terminal escape sequence.

Parameters
key:`int`	The button code.

Returns
`bytes or None`	The terminal sequence, or None if unmapped.

def _handle_escape_sequence(self, sequence): ¶

Handle an ANSI/VT100 escape sequence.

Parameters
sequence:`str`	The escape sequence to handle.

def _print_char(self, char_code): ¶

Print a character to the terminal buffer.

Parameters
char_code:`int`	The character code to print.

def _render_terminal(self): ¶

Render the terminal buffer to the display using C module

def _scroll_up(self): ¶

Scroll terminal content up by one line

def _updateInternalBuffer(self): ¶

Poll input and fill the output buffer with terminal sequences.

_batch_mode: bool = ¶

Undocumented

_comment_color = ¶

Undocumented

_last_render_time = ¶

Undocumented

_needs_render: bool = ¶

Undocumented

_render_enabled: bool = ¶

Undocumented

_render_throttle_ms: int = ¶

Undocumented

_string_color = ¶

Undocumented

_syntax_map = ¶

Undocumented