Class: Tuile::Component::FloatField::Field

Inherits:
TextField show all
Defined in:
lib/tuile/component/float_field.rb,
sig/tuile.rbs

Overview

The face: a TextField that admits only the buffers a float can be typed through, however the characters arrive.

Constant Summary collapse

TYPEABLE =

Buffers reachable by typing a float: an optional leading -, digits with at most one ., and an optional exponent. Looser than NUMERIC on purpose — "", "-", "1." and "1e" are members, or the values past them could not be typed at all.

Returns:

  • (Regexp) 
/\A-?\d*(?:\.\d*)?(?:[eE][-+]?\d*)?\z/

Instance Attribute Summary

Attributes inherited from TextField

#left_column, #max_text_length, #on_enter, #on_key_down, #on_key_up

Attributes inherited from AbstractStringField

#caret, #on_change, #on_escape, #text

Attributes included from HasValue

#on_value_change

Attributes included from HasValidation

#on_error_message_change

Instance Method Summary collapse

Methods inherited from TextField

#adjust_left_column, #column_at, #cursor_position, #display_text, #handle_caret_mutated, #handle_mouse_down?, #handle_text_input_key?, #handle_text_mutated, #handle_width_changed, #index_at, #initialize, #insert, #inspect_details, #placeholder, #placeholder=, #placeholder_row, #preprocess_paste, #repaint, #show_placeholder?, #snap_to_glyph_start, #text_columns, #visible_text

Methods included from HasPlaceholder

#inspect_details, #placeholder, #placeholder=

Methods inherited from AbstractStringField

#clear, #cluster_boundary_after, #cluster_boundary_before, #columns_of, #default_bg_color, #default_on_escape, #delete_at_caret, #delete_back_to, #delete_before_caret, #empty?, #empty_value, #error_bg_color, #error_ink?, #error_message, #error_message=, #focusable?, #handle_caret_mutated, #handle_key?, #handle_paste, #handle_text_input_key?, #handle_text_mutated, #initialize, #inspect_details, #preprocess_paste, #preprocess_text, #snap_to_cluster, #tab_stop?, #value, #value=, #word_left, #word_right

Methods included from HasValue

#clear, #empty?, #empty_value, #error_bg_color, #error_ink?, #error_message, #error_message=, #focusable?, #inspect_details, #value, #value=

Methods included from HasValidation

#error_bg_color, #error_ink?, #error_message, #error_message=, #inspect_details

Constructor Details

This class inherits a constructor from Tuile::Component::TextField

Instance Method Details

#insert_text(str) ⇒ Boolean

Accepts the insertion only if the whole resulting buffer is still typeable, so a European "1,5" is dropped rather than sieved into the plausible, wrong "15".

@param str

@return — true if the text changed.

Parameters:

  • str (String)

Returns:

  • (Boolean) 


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# File 'lib/tuile/component/float_field.rb', line 72

def insert_text(str)
  return false unless TYPEABLE.match?(@text.dup.insert(@caret, str))

  super
end