Class: Fiddle::Pointer

Inherits:
Object
  • Object
show all
Defined in:
lib/libui_paradise/fiddle/fiddle.rb

Overview

Fiddle::Pointer

Instance Method Summary collapse

Instance Method Details

#active? ⇒ Boolean Also known as: is_active?

#

active?

#

Returns:

  • (Boolean) 


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 747

def active?
  current_widget = available_pointers?[self.object_id] # This will be an Array.
  pointer = current_widget.first
  type    = current_widget.last
  case type
  # ======================================================================= #
  # === :checkbox
  # ======================================================================= #
  when :checkbox
    checked = (::LibUI.checkbox_checked(pointer) == 1)
    return (checked == true)
  # ======================================================================= #
  # === :entry
  #
  # This is unhandled.
  # ======================================================================= #
  when :entry
    e 'An entry can not be "active". Check the code - there may '\
      'an erroneous assumption if the method .active? is called.'
  end
end

#add_hsep ⇒ Object Also known as: add_horizontal_separator

#

add_hsep

This method adds a horizontal separator.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 944

def add_hsep
  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  this_widget = hash[object_id].first
  this_widget.add(::LibuiParadise.horizontal_separator, 0)
end

#align_to_center ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1225

def align_to_center; end

#align_to_the_left ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1214

def align_to_the_left; end

#align_to_the_right ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1215

def align_to_the_right; end

#append(this_widget, padding_to_use = 1, *remaining_arguments) ⇒ Object Also known as: add, <<, pack_start

#

append (append tag, add tag)

This is simply a wrapper over LibUI.box_append().

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 361

def append(
    this_widget,
    padding_to_use = 1,
    *remaining_arguments
  )
  if padding_to_use.is_a? Hash
    padding_to_use = 1 # Hardcoded exception.
  end
  if padding_to_use > 1
    padding_to_use = 1 # For now only a value of 1 seems to work.
  end
  current_widget = available_pointers?[self.object_id] # This will be an Array.
  _pointer = current_widget.first # Not used currently in this method.
  type     = current_widget.last
  left_position = LibuiParadise.counter_left?
  top_position  = LibuiParadise.counter_top?
  if remaining_arguments[1]
    top_position = remaining_arguments[1]
  end
  if remaining_arguments[0]
    left_position = remaining_arguments[0]
  else
    LibuiParadise.increment_counter_left
  end
  case type
  # ======================================================================= #
  # === :grid
  #
  # This entry-point is specifically for a ui-grid element.
  #
  # The positional arguments stand for:
  #
  #                     gtk-widget,  left, top, xspan, yspan, hexpand, halign, vexpand, valign
  #   grid_append(grid, entry1,      0, 0, 2, 1, 0, 0, 1, 0)
  #
  # ======================================================================= #
  when :grid
    LibUI.grid_append(
      self,
      this_widget.to_s,
      padding_to_use,
      left_position,
      top_position,
      remaining_arguments[2],
      remaining_arguments[3],
      remaining_arguments[4],
      remaining_arguments[5],
      remaining_arguments[6]
    )
  # ======================================================================= #
  # === :tab
  #
  # This is specifically for the notebook-tab. In this case the argument
  # names do not make a lot of sense. For instance, this_widget is
  # actually the text-title for the tab, and padding_to_use is the
  # actual widget that will be embedded. Because this is, however had,
  # the "minor use case", compared to the subsequent "else" clause, I
  # will keep the name as-is. The comment here should be kept, in order
  # to explain this peculiar oddity though.
  # ======================================================================= #
  when :tab
    LibUI.tab_append(self, this_widget.to_s, padding_to_use)
  # ======================================================================= #
  # === :window
  #
  # Add support for the toplevel window here, as of September 2021.
  # ======================================================================= #
  when :window
    LibUI.window_set_child(self, this_widget)
  else # This is the default.
    ::LibUI.box_append(
      self, this_widget, padding_to_use
    )
  end
end

#append_project_CSS_file ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1182

def append_project_CSS_file; end

#append_text_column(text, a, b = -1) ⇒ Object

#

append_text_column

This method is specifically used for libui-tables.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 444

def append_text_column(
    text,
    a,
    b = -1
  )
  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  type = hash[object_id].last # The last entry contains the type.
  case type
  # ======================================================================= #
  # === :table
  #
  # This is the primary entry point for this method.
  # ======================================================================= #
  when :table
    ::LibUI.table_append_text_column(self, text, a, b)
  else
    e 'Not registered type in .append_text_column(): '+type.to_s
  end
end

#append_this_array(array) ⇒ Object

#

append_this_array

This method only works for comboboxes.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 608

def append_this_array(array)
  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  _this_widget = hash[object_id].first # This variable is currently not in use.
  type        = hash[object_id].last
  case type
  # ======================================================================= #
  # === :combobox
  # ======================================================================= #
  when :combobox
    array.each {|this_entry|
      LibUI.combobox_append(self, this_entry)
    }
    LibUI.combobox_set_selected(self, 0) # The first one will be active too.    
  end
end

#append_this_string(i) ⇒ Object

#

append_this_string

This method can be used to append a String to an existing String.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1129

def append_this_string(i)
  ::LibUI.attributed_string_append_unattributed(self, i)
end

#autotitle(i = title? ) ⇒ Object

#

autotitle

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 931

def autotitle(
    i = title?
  )
  if i and respond_to?(:set_title)
    set_title(i)
  end
end

#available_pointers? ⇒ Boolean Also known as: main_hash?, hash_fiddle_pointer_widgets?

#

available_pointers?

#

Returns:

  • (Boolean) 


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 26

def available_pointers?
  ::LibuiParadise.hash_fiddle_pointer_widgets?
end

#bblack1 ⇒ Object

#

Skeleton methods

A “skeleton” method is one that doesn’t do anything right now. These were added to increase compatibility with the gtk_paradise gem in particular.

Some of these skeleton methods may become real methods one day, depending on how sophisticated the libui code will be - but until then we will simply use different options on different toolkits.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1159

def bblack1; end

#bblack2 ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1160

def bblack2; end

#bblack3 ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1161

def bblack3; end

#bblack4 ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1231

def bblack4; end

#border(i = '', *a) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1239

def border(i = '', *a); end

#center ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1224

def center; end

#child(child_widget) ⇒ Object Also known as: children=, child=

#

child

This method should only be called on a LibUI-Window.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 881

def child(child_widget)
  LibUI.window_set_child(self, child_widget)
end

#clear(current_widget = available_pointers?[self.object_id]) ⇒ Object

#

clear

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 34

def clear(
    current_widget = available_pointers?[self.object_id] # This will be an Array.
  )
  _pointer = current_widget.first # Not used currently in this method.
  type     = current_widget.last

  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  if type.nil?
    type = hash[object_id].last # This should be :grid. But it is not used here.
  end
  case type
  # ======================================================================= #
  # === :multiline_entry
  # ======================================================================= #
  when :multiline_entry
    ::LibUI.multiline_entry_set_text(self, '')
  # ======================================================================= #
  # === :combobox
  #
  # This currently does not work; it depends on libui-ng, which has not
  # yet been added completely.
  # ======================================================================= #
  when :combobox
  #   LibUI.multiline_entry_set_text(
  #     this_widget,
  #     display_this_text.to_s
  #   )
  else
    puts "Unhandled case in clear(): "\
         "#{type}"
  end
end

#clear_background ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1177

def clear_background; end

#clear_old_datapoints ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1205

def clear_old_datapoints; end

#close_properly ⇒ Object Also known as: simple_exit, sane_exit, do_quit, should_quit

#

close_properly

This can be invoked via, for instance:

main_window.simple_exit
#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 970

def close_properly
  LibUI.window_on_closing(self) {
    LibUI.exit_from(self)
  }
end

#css_class(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1186

def css_class(i = ''); end

#default=(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1196

def default=(i = ''); end

#default_styling(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1267

def default_styling(i = '')
end

#deselect ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1259

def deselect; end

#disable(&block) ⇒ Object

#

disable (disable tag)

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 808

def disable(&block)
  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  type = hash[object_id].last # The last entry contains the type.
  case type
  # ======================================================================= #
  # === :button
  # ======================================================================= #
  when :button
    LibUI.control_disable(self)
  else
    e 'Not registered type in .disable(): '+type.to_s
  end
end

#disable_user_input ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1281

def disable_user_input; end

#do_center ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1198

def do_center; end

#do_focus ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1237

def do_focus; end

#do_markify ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1195

def do_markify; end

#do_use_underline ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1192

def do_use_underline; end

#drag_via_left_to_right(a, b) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1264

def drag_via_left_to_right(a, b)
  vbox(a, b)
end

#editable=(true_or_false = false) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1180

def editable=(true_or_false = false); end

#empty?(type = nil) ⇒ Boolean

#

empty?

#

Returns:

  • (Boolean) 


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 628

def empty?(
    type = nil
  )
  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  if type.nil?
    # ===================================================================== #
    # In this case we must determine the type in use.
    # ===================================================================== #
    if hash.has_key? object_id
      type = hash[object_id].last # The last entry contains the type.
    end
  end
  case type
  # ======================================================================= #
  # === :entry
  # ======================================================================= #
  when :entry
    self.text?.empty?
  else
    return true
  end
end

#enable(&block) ⇒ Object

#

enable (enable tag)

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 826

def enable(&block)
  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  type = hash[object_id].last # The last entry contains the type.
  case type
  # ======================================================================= #
  # === :button
  # ======================================================================= #
  when :button
    LibUI.control_enable(self)
  else
    e 'Not registered type in .enable(): '+type.to_s
  end
end

#enable_all_events ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1236

def enable_all_events; end

#enable_events ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1235

def enable_events; end

#enable_free_form_css ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1212

def enable_free_form_css; end

#fancy_hint(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1240

def fancy_hint(i = ''); end

#fancy_hint=(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1242

def fancy_hint=(i = ''); end

#fancy_hints(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1241

def fancy_hints(i = ''); end

#fancy_hints=(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1243

def fancy_hints=(i = ''); end

#font=(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1233

def font=(i = ''); end

#fraction=(i = '') ⇒ Object

#

fraction=

This method is mostly a wrapper to reach ruby-gtk3 compatibility.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 984

def fraction=(i = '')
  i = i * 100
  set_value(i)
end

#group_maximal(*i) ⇒ Object

#

group_maximal

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 541

def group_maximal(*i)
  i.flatten.each {|entry|
    maximal(entry)
  }
end

#hash_grid(pass_this_widget, hash = {}) ⇒ Object Also known as: hash

#

hash_grid

Usage example:

hash_grid(text('Yo6'), { left: 0, top: 3, xspan: 1, yspan: 1, hexpand: 0, halign: 0, vexpand: 0, valign: 0 })
#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1052

def hash_grid(
    pass_this_widget,
    hash = {}
  )
  array_to_be_passed = []
  # ======================================================================= #
  # === :left
  # ======================================================================= #
  if hash.has_key? :left
    array_to_be_passed << hash[:left]
  else
    array_to_be_passed << 0
  end
  # ======================================================================= #
  # === :top
  # ======================================================================= #
  if hash.has_key? :top
    array_to_be_passed << hash[:top]
  else
    array_to_be_passed << 0
  end
  # ======================================================================= #
  # === :xspan
  # ======================================================================= #
  if hash.has_key? :xspan
    array_to_be_passed << hash[:xspan]
  else
    array_to_be_passed << 0
  end
  # ======================================================================= #
  # === :yspan
  # ======================================================================= #
  if hash.has_key? :yspan
    array_to_be_passed << hash[:yspan]
  else
    array_to_be_passed << 0
  end
  # ======================================================================= #
  # === :hexpand
  # ======================================================================= #
  if hash.has_key? :hexpand
    array_to_be_passed << hash[:hexpand]
  else
    array_to_be_passed << 0
  end
  # ======================================================================= #
  # === :halign
  # ======================================================================= #
  if hash.has_key? :halign
    array_to_be_passed << hash[:halign]
  else
    array_to_be_passed << 0
  end
  # ======================================================================= #
  # === :vexpand
  # ======================================================================= #
  if hash.has_key? :vexpand
    array_to_be_passed << hash[:vexpand]
  else
    array_to_be_passed << 0
  end
  # ======================================================================= #
  # === :valign
  # ======================================================================= #
  if hash.has_key? :valign
    array_to_be_passed << hash[:valign]
  else
    array_to_be_passed << 0
  end
  ui_grid_append(pass_this_widget, *array_to_be_passed)
end

#hint=(i = nil) ⇒ Object Also known as: popup_hint 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1173

def hint=(i = nil); end

#horizontal_center ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1222

def horizontal_center; end

#hover(i = :hack_26) ⇒ Object

Currently not in use.



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1251

def hover(i = :hack_26) # Currently not in use.
end

#infer_the_size_automatically ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1183

def infer_the_size_automatically; end

#is_margined(i = LibuiParadise.main_window?) ⇒ Object Also known as: uses_a_margin, has_margin

#

is_margined (margin tag, margined tag)

For now this only works on @main_window.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 898

def is_margined(
    i = LibuiParadise.main_window?
  )
  id = self.object_id
  hash = main_hash?
  if hash.has_key? id
    _ = hash[id]
    type = _.last
    case type
    # ===================================================================== #
    # === :window
    # ===================================================================== #
    when :window
      ::LibUI.window_set_margined(_.first, 1)
    else
      e 'The type '+type.to_s+' in is_margined() is currently not supported.'
    end
  else
    e
    e '-'*80
    e 'An unhandled situation has been created:'
    e
    e '  No available key in is_margined() for id: '+id.to_s
    e
    e '-'*80
    e
  end
end

#is_padded ⇒ Object

#

is_padded

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 844

def is_padded
  set_padded(1)
end

#is_read_only(current_widget = available_pointers?[self.object_id]) ⇒ Object Also known as: readonly

#

is_read_only

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 71

def is_read_only(
    current_widget = available_pointers?[self.object_id] # This will be an Array.
  )
  _pointer = current_widget.first # Not used currently in this method.
  type     = current_widget.last
  case type
  # ======================================================================= #
  # === :entry
  # ======================================================================= #
  when :entry
    ::LibUI.entry_set_read_only(self, 1)
  # ======================================================================= #
  # === :multiline_entry
  # ======================================================================= #
  when :multiline_entry
    ::LibUI.multiline_entry_set_read_only(self, 1)
  else
    pp 'The caller in is_read_only() will be shown next:'
    puts
    pp caller()
    puts
    puts "#{type} (class #{type.class}) is not yet implemented in .padded=."
    puts
  end
end

#left(widget, left = LibuiParadise.counter_left?, top = LibuiParadise.counter_top?, xspan = 1, yspan = 1) ⇒ Object Also known as: middle

#

left (left tag)

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 992

def left(
    widget,
    left  = LibuiParadise.counter_left?,
    top   = LibuiParadise.counter_top?,
    xspan = 1,
    yspan = 1
  )
  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  type = hash[object_id].last # The last entry contains the type.
  case left
  # ======================================================================= #
  # === :default
  # ======================================================================= #
  when :default
    left = LibuiParadise.counter_left?
  end
  case top
  # ======================================================================= #
  # === :default
  # ======================================================================= #
  when :default
    top = LibuiParadise.counter_top?
  end
  case type
  # ======================================================================= #
  # === :vbox
  # ======================================================================= #
  when :vbox
    add(widget)
  # ======================================================================= #
  # === :grid
  # ======================================================================= #
  when :grid
    hash_grid(
      widget,
      {
        left:    left,
        top:     top,
        xspan:   xspan,
        yspan:   yspan,
        hexpand: 0,
        halign:  0,
        vexpand: 0,
        valign:  0
      }
    )
    LibuiParadise.counter_left += 1
  else
  end
end

#light_blue_background ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1250

def light_blue_background; end

#light_green_background ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1223

def light_green_background; end

#lightblue ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1193

def lightblue; end

#lightgreen ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1200

def lightgreen; end

#line_spacing=(i = 10) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1208

def line_spacing=(i = 10); end

#main_then_quit ⇒ Object

#

main_then_quit

We use ::LibUI just in case to avoid any possible name-collisions.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 956

def main_then_quit
  ::LibUI.main
  ::LibUI.quit
  #::LibUI.uninit # Trying this since as of November 2023. Nope, does not work.
end

#make_bold ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1190

def make_bold; end

#make_selectable ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1226

def make_selectable; end

#maximal(this_widget, optional_padding = 1) ⇒ Object

#

maximal

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 550

def maximal(this_widget, optional_padding = 1)
  add(this_widget, optional_padding)
end

#maximize ⇒ Object

This should maximize the window. It does not yet work.



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1255

def maximize # This should maximize the window. It does not yet work.
end

#minimal(this_widget, optional_padding = 0) ⇒ Object

#

minimal

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 557

def minimal(
    this_widget,
    optional_padding = 0
  )
  add(this_widget, optional_padding)
end

#modify_background(a = :active, b = :coral) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1175

def modify_background(a = :active,   b = :coral); end

#new_row ⇒ Object

#

new_row

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 100

def new_row
  ::LibuiParadise.new_row
end

#on_button_press_event(&block) ⇒ Object

#

on_button_press_event

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1143

def on_button_press_event(&block)
  # e 'NOT YET IMPLEMENTED'
end

#on_changed(&block) ⇒ Object

#

on_changed

The idea for this method is to respond to on-changed events, in particular on a spinbox. Currently it is enabled for a few widgets, including :entry. This may be expanded at a later time to add on-changed support for more widgets.

For a combobox we may have to use this code:

LibUI.combobox_on_selected
  UI.spinbox_on_changed(self, spinbox_changed_callback, nil)
end

Be sure to pass the proc object into the method, in a block.

Usage examples:

text_entry.on_changed { text_changed_callback }
slider.on_changed { slider_changed_callback }
#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 314

def on_changed(&block)
  current_widget = available_pointers?[self.object_id] # This will be an Array.
  _pointer = current_widget.first # Not used currently in this method.
  type     = current_widget.last
  case type
  # ======================================================================= #
  # === :entry
  # ======================================================================= #
  when :entry
    ::LibUI.entry_on_changed(self, block.call, nil)
  # ======================================================================= #
  # === :multiline_entry
  # ======================================================================= #
  when :multiline_entry
    ::LibUI.multiline_entry_on_changed(self, block.call, nil)
  # ======================================================================= #
  # === :spinbox
  # ======================================================================= #
  when :spinbox
    ::LibUI.spinbox_on_changed(self, block.call, nil)
  # ======================================================================= #
  # === :slider
  #
  # This is for a slider bar.
  # ======================================================================= #
  when :slider
    ::LibUI.slider_on_changed(self, block.call, nil)
  # ======================================================================= #
  # === :colour_button
  # ======================================================================= #
  when :colour_button
    ::LibUI.color_button_on_changed(self, block.call, nil)
  # ======================================================================= #
  # === :combobox
  # ======================================================================= #
  when :combobox
    ::LibUI.combobox_on_selected(self, block.call, nil)
  else
    e 'Not registered type in .on_changed(): '+type.to_s
  end
end

#on_click_select_all ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1197

def on_click_select_all; end

#on_clicked(&block) ⇒ Object Also known as: on_click_event

#

on_clicked

This method is in general called on a button-widget. It allows us to simulate the action associated with clicking on a button.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 854

def on_clicked(&block)
  ::LibUI.button_on_clicked(self, &block)
end

#on_enter ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1217

def on_enter; end

#on_enter_key(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1245

def on_enter_key(i = ''); end

#on_hover(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1199

def on_hover(i = ''); end

#on_hover_colour(i = '', &block) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1258

def on_hover_colour(i = '', &block); end

#on_key_press_event(&block) ⇒ Object

#

on_key_press_event

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1136

def on_key_press_event(&block)
  # e 'NOT YET IMPLEMENTED.'
end

#on_mouse_click_select_everything ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1232

def on_mouse_click_select_everything; end

#on_value_changed ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1218

def on_value_changed; end

#pad10px ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1171

def pad10px; end

#pad1px ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1162

def pad1px;  end

#pad2px ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1163

def pad2px;  end

#pad3px ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1164

def pad3px;  end

#pad4px ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1165

def pad4px;  end

#pad5px ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1166

def pad5px;  end

#pad6px ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1167

def pad6px;  end

#pad7px ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1168

def pad7px;  end

#pad8px ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1169

def pad8px;  end

#pad9px ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1170

def pad9px;  end

#padded=(pad_n_px = 25, type = nil) ⇒ Object Also known as: set_padded, set_padding

#

padded=

Set a uniform padding via this method.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 657

def padded=(
    pad_n_px = 25, # How much to pad in n px. LibUI currently does not allow for that, though.
    type     = nil
  )
  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  if type.nil?
    # ===================================================================== #
    # In this case we must determine the type in use.
    # ===================================================================== #
    if hash.has_key? object_id
      type = hash[object_id].last # The last entry contains the type.
    end
  end
  case type
  # ======================================================================= #
  # === :window
  # ======================================================================= #
  when :window
    LibUI.window_set_margined(self, 1)
  # ======================================================================= #
  # === :grid
  # ======================================================================= #
  when :grid
    LibUI.grid_set_padded(self, pad_n_px) # This line should be changed at a later time.
  # ======================================================================= #
  # === :button
  #
  # This entry point probably does not work, so don't use it.
  # ======================================================================= #
  when :button
    LibUI.box_set_padded(self, pad_n_px)
  # ======================================================================= #
  # === :vbox
  # ======================================================================= #
  when :vbox,
       :hbox
    LibUI.box_set_padded(self, pad_n_px)
  # ======================================================================= #
  # === :entry
  # ======================================================================= #
  when :entry
    # ===================================================================== #
    # This method does not seem to exist. We'll leave this here for the
    # time being.
    # ===================================================================== #
    # LibUI.entry_set_padded(self, pad_n_px) # This line should be changed at a later time.
  else
    pp caller()
    puts "#{type} (class #{type.class}) is not yet implemented in .padded=."
  end
end

#padding=(i = 8) ⇒ Object

#

This is currently not in use.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1272

def padding=(i = 8)
end

#populate(dataset) ⇒ Object

#

populate

This method will (try to) populate a combobox in LibUI.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 863

def populate(dataset)
  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  type = hash[object_id].last
  case type
  # ======================================================================= #
  # === :combobox
  # ======================================================================= #
  when :combobox
    self.append_this_array(dataset)
  end
end

#position=(i = 10) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1178

def position=(i = 10); end

#remove_background ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1229

def remove_background; end

#reset_the_internal_variables ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1179

def reset_the_internal_variables; end

#return_all_entries ⇒ Object

def fraction=(i = ”); end



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1261

def return_all_entries
  []
end

#right(widget, left = LibuiParadise.counter_left?, top = LibuiParadise.counter_top?, xspan = 1, yspan = 1) ⇒ Object

#

right (right tag)

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 107

def right(
    widget,
    left  = LibuiParadise.counter_left?,
    top   = LibuiParadise.counter_top?,
    xspan = 1,
    yspan = 1
  )
  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  type = hash[object_id].last # The last entry contains the type.
  case left
  # ======================================================================= #
  # === :default
  # ======================================================================= #
  when :default
    left = LibuiParadise.counter_left?
  end
  case top
  # ======================================================================= #
  # === :default
  # ======================================================================= #
  when :default
    top = LibuiParadise.counter_top?
  end
  case type
  # ======================================================================= #
  # === :vbox
  # ======================================================================= #
  when :vbox
    add(widget)
  # ======================================================================= #
  # === :grid
  # ======================================================================= #
  when :grid
    hash_grid(
      widget,
      {
        left:    left,
        top:     top,
        xspan:   xspan,
        yspan:   yspan,
        hexpand: 0,
        halign:  0,
        vexpand: 0,
        valign:  0
      }
    )
    # ===================================================================== #
    # And we must add a new row next:
    # ===================================================================== #
    LibuiParadise.new_row
  else
  end
end

#rounded_border(a = '', b = '', c = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1230

def rounded_border(a = '', b = '', c = ''); end

#row_spacing=(i = 10) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1207

def row_spacing=(i = 10); end

#set_activates_default(i = true) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1234

def set_activates_default(i = true); end

#set_active ⇒ Object Also known as: is_active, is_now_active

#

set_active

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 772

def set_active
  current_widget = available_pointers?[self.object_id] # This will be an Array.
  pointer = current_widget.first
  type    = current_widget.last
  case type
  # ======================================================================= #
  # === :checkbox
  # ======================================================================= #
  when :checkbox
    ::LibUI.checkbox_set_checked(pointer, 1)
  end
end

#set_background_colour(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1201

def set_background_colour(i = ''); end

#set_border_width(i = 2) ⇒ Object Also known as: set_border_size 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1187

def set_border_width(i = 2); end

#set_colour(i = 'blue') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1189

def set_colour(i = 'blue'); end

#set_column_spacing(i = 1) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1184

def set_column_spacing(i = 1); end

#set_editable(i = true) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1210

def set_editable(i = true); end

#set_focus(true_or_false = true) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1176

def set_focus(true_or_false = true); end

#set_font(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1194

def set_font(i = ''); end

#set_font_size(i = :hack_26) ⇒ Object

Currently not in use.



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1253

def set_font_size(i = :hack_26) # Currently not in use.
end

#set_homogeneous(i = true) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1238

def set_homogeneous(i = true); end

#set_inactive ⇒ Object Also known as: is_inactive, is_now_inactive

#

set_inactive

This method currently only works for libui-checkboxes.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 791

def set_inactive
  current_widget = available_pointers?[self.object_id] # This will be an Array.
  pointer = current_widget.first
  type    = current_widget.last
  case type
  # ======================================================================= #
  # === :checkbox
  # ======================================================================= #
  when :checkbox
    ::LibUI.checkbox_set_checked(pointer, 0)
  end
end

#set_max_length(n = 100) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1181

def set_max_length(n = 100); end

#set_name(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1191

def set_name(i = ''); end

#set_row_spacing(i = 1) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1185

def set_row_spacing(i = 1); end

#set_size(a = 42, b = 42) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1203

def set_size(a = 42, b = 42); end

#set_size_request(a = 42, b = 42) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1202

def set_size_request(a = 42, b = 42); end

#set_text(display_this_text = '', type = nil) ⇒ Object Also known as: set_content

#

set_text

This method can be used to set the text of a particular libui-widget, in particular entries.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 471

def set_text(
    display_this_text = '', # This is the text that will be used.
    type              = nil
  )
  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  this_widget = hash[object_id].first
  if type.nil?
    type = hash[object_id].last # This should be :grid. But it is not used here.
  end
  case type
  # ======================================================================= #
  # === :new_progress_bar
  # ======================================================================= #
  when :new_progress_bar
    # This currently does nothing.
  # ======================================================================= #
  # === :multiline_entry
  #
  # This is a text-view widget actually.
  # ======================================================================= #
  when :multiline_entry
    LibUI.multiline_entry_set_text(
      this_widget,
      display_this_text.to_s
    )
  # ======================================================================= #
  # === :text
  # ======================================================================= #
  when :text,
       :label
    LibUI.label_set_text(
      this_widget,
      display_this_text.to_s
    )
  # ======================================================================= #
  # === :textview
  # ======================================================================= #
  when :textview
    LibUI.multiline_entry_set_text(
      this_widget,
      display_this_text.to_s
    )
  # ======================================================================= #
  # === :entry
  # ======================================================================= #
  when :entry
    LibUI.entry_set_text(
      this_widget,
      display_this_text.to_s
    )
  # ======================================================================= #
  # === :search_entry
  #
  # This is specifically for a search-entry.
  # ======================================================================= #
  when :search_entry
    LibUI.entry_set_text(
      this_widget,
      display_this_text.to_s
    )
  else
    puts 'Unhandled case in set_text(): '+
         type.to_s
  end
end

#set_value(new_value) ⇒ Object Also known as: value=, start_position=

#

set_value

This method has initially been created to assign a value to a spinbutton. That way the following API is made possible:

spinbutton.set_value(42)
#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 573

def set_value(
    new_value
  )
  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  this_widget = hash[object_id].first
  type = hash[object_id].last
  case type
  # ======================================================================= #
  # === :new_progress_bar
  #
  # This is actually a progress-bar.
  # ======================================================================= #
  when :new_progress_bar,
       :progress_bar
    ::LibUI.progress_bar_set_value(this_widget, new_value.to_i)
  # ======================================================================= #
  # === :spinbox
  # ======================================================================= #
  when :spinbox
    ::LibUI.spinbox_set_value(
      this_widget,
      new_value.to_i # Must be an Integer.
    )
  else
    e 'Not registered type: '+type.to_s
  end
end

#shadow_hint=(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1244

def shadow_hint=(i = ''); end

#show_all ⇒ Object

This one here may become a real method one day, but right now I don’t know how to enable that.



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1213

def show_all; end

#show_the_controls ⇒ Object Also known as: control_show

#

show_the_controls

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 889

def show_the_controls
  ::LibUI.control_show(self)
end

#show_then_main_then_quit(optional_widget = nil) ⇒ Object Also known as: elegant_exit, complex_finalizer, intelligent_close_down, intelligent_quit, intelligent_exit

#

show_then_main_then_quit

This method ultimately combines three other method calls, or even four, since as of December 2023.

The argument that this method accepts is the main window.

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 222

def show_then_main_then_quit(
    optional_widget = nil
  )
  # ======================================================================= #
  # First handle non-nil arguments given.
  # ======================================================================= #
  if optional_widget
    self << optional_widget
  end
  ::LibUI.control_show(self)
  main_then_quit
end

#signal_connect(i = '') ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1246

def signal_connect(i = ''); end

#spacing1=(i = 2) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1247

def spacing1=(i = 2); end

#spacing2=(i = 2) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1248

def spacing2=(i = 2); end

#spacing=(i = 0) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1249

def spacing=(i = 0); end

#text(i = '', padding_to_use = 0) ⇒ Object Also known as: add_text

#

text

This ad-hoc method can be used to write text onto a widget.

Usage example:

outer_vbox.text(
  'This widget can be used to modify the ID3 tags '\
  'of .mp3 files. The taglib-ruby gem is required for this functionality.'
)
#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 724

def text(
    i              = '',
    padding_to_use = 0
  )
  i = i.to_s # Let's ensure we have a String past this point.
  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  _this_widget = hash[object_id].first # This variable is currently not in use.
  type        = hash[object_id].last
  case type
  # ======================================================================= #
  # === :vbox
  # ======================================================================= #
  when :vbox,
       :hbox
    _ = ui_text(i)
    self.add(_, padding_to_use)
  end
end

#text?(type = nil) ⇒ Boolean Also known as: buffer?, value?, selected?

#

text?

This method queries the content of any widget that may contain text, in particular entries such as a gtk-entry.

#

Returns:

  • (Boolean) 


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 245

def text?(
    type = nil
  )
  object_id = self.object_id
  hash = hash_fiddle_pointer_widgets?
  if type.nil?
    # ===================================================================== #
    # In this case we must determine the type in use.
    # ===================================================================== #
    if hash.has_key? object_id
      type = hash[object_id].last # The last entry contains the type.
    end
  end
  case type
  # ======================================================================= #
  # === :label
  # ======================================================================= #
  when :label
    return LibUI.label_text(self).to_s
  # ======================================================================= #
  # === :new_progress_bar
  #
  # This is actually a progress-bar.
  # ======================================================================= #
  when :new_progress_bar,
       :progress_bar
    return LibUI.progress_bar_value(self).to_s
  # ======================================================================= #
  # === :multiline_entry
  #
  # This is, I believe, synonymous to :textview.
  # ======================================================================= #
  when :multiline_entry,
       :textview
    return LibUI.multiline_entry_text(self).to_s
  # ======================================================================= #
  # === :combobox
  # ======================================================================= #
  when :combobox
    return LibUI.combobox_selected(self).to_s
  else # This is the "historic" default. May have to be removed one day.
    return LibUI.entry_text(self).to_s
  end
end

#the_first_entry_is_active ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1204

def the_first_entry_is_active; end

#to_the_left ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1209

def to_the_left; end

#try_to_add_default_CSS_rules ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1211

def try_to_add_default_CSS_rules; end

#try_to_use_this_font(i = nil) ⇒ Object Also known as: use_this_font=, set_use_this_font 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1219

def try_to_use_this_font(i = nil); end

#uniform_spacing(i = 8) ⇒ Object

#

uniform_spacing

#


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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1278

def uniform_spacing(i = 8)
end

#use_gtk_paradise_project_css_file ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1257

def use_gtk_paradise_project_css_file; end

#very_light_yellow_background ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1227

def very_light_yellow_background; end

#very_light_yellowish_background ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1228

def very_light_yellowish_background; end

#width_height(a = 500, b = 500) ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1206

def width_height(a = 500, b = 500); end

#yellow_background ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1172

def yellow_background; end

#yellowish_background ⇒ Object 



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# File 'lib/libui_paradise/fiddle/fiddle.rb', line 1216

def yellowish_background; end