Class: Glimmer::Gladiator::TextEditor

Inherits:
Object
  • Object
show all
Includes:
UI::CustomWidget
Defined in:
lib/views/glimmer/gladiator/text_editor.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#text_proxy ⇒ Object (readonly)

Returns the value of attribute text_proxy.



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# File 'lib/views/glimmer/gladiator/text_editor.rb', line 29

def text_proxy
  @text_proxy
end

Instance Method Details

#bump_font_height_down ⇒ Object 



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# File 'lib/views/glimmer/gladiator/text_editor.rb', line 221

def bump_font_height_down
  @original_font_height ||= font_datum.height
  new_font_height = (font_datum.height - 1) == 0 ? font_datum.height : (font_datum.height - 1)
  update_font_height(new_font_height)
end

#bump_font_height_up ⇒ Object 



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# File 'lib/views/glimmer/gladiator/text_editor.rb', line 215

def bump_font_height_up
  @original_font_height ||= font_datum.height
  new_font_height = font_datum.height + 1
  update_font_height(new_font_height)
end

#extract_char(event) ⇒ Object 



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# File 'lib/views/glimmer/gladiator/text_editor.rb', line 97

def extract_char(event)
  event.keyCode.chr
rescue => e
  nil
end

#font_datum ⇒ Object 



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# File 'lib/views/glimmer/gladiator/text_editor.rb', line 241

def font_datum
  @text_proxy.font.font_data.first
end

#load_content ⇒ Object 



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# File 'lib/views/glimmer/gladiator/text_editor.rb', line 107

def load_content
  if !@initialized && !Gladiator.startup
    load_line_numbers_text_content
    load_text_content
    @initialized = true
  end
end

#load_line_numbers_text_content ⇒ Object 



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# File 'lib/views/glimmer/gladiator/text_editor.rb', line 115

def load_line_numbers_text_content
  @line_numbers_text.content {
    text bind(self, 'file.line_numbers_content')
    top_pixel bind(self, 'file.top_pixel', read_only: true)
  }
end

#load_text_content ⇒ Object 



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# File 'lib/views/glimmer/gladiator/text_editor.rb', line 122

def load_text_content
  @text_proxy.content {
    text bind(self, 'file.content')
    selection_count bind(self, 'file.selection_count')
    caret_position bind(self, 'file.caret_position')
    top_pixel bind(self, 'file.top_pixel')
    # key_binding swt(:ctrl, :home), ST::TEXT_START # This seems to make the caret disappear on Windows so disabling for now and relying on key event instead
    on_focus_lost {
      file&.write_dirty_content
    }
    on_verify_key { |key_event|
      if (Glimmer::SWT::SWTProxy.include?(key_event.stateMask, COMMAND_KEY, :shift) && extract_char(key_event) == 'z') || (key_event.stateMask == swt(COMMAND_KEY) && extract_char(key_event) == 'y')
        key_event.doit = !Command.redo(file)
      elsif key_event.stateMask == swt(COMMAND_KEY) && extract_char(key_event) == 'z'
        key_event.doit = !Command.undo(file)
      elsif key_event.stateMask == swt(COMMAND_KEY) && extract_char(key_event) == 'a'
        key_event.widget.selectAll
      elsif (OS.mac? && key_event.keyCode == swt(:home)) || (!OS.mac? && Glimmer::SWT::SWTProxy.include?(key_event.stateMask, :ctrl) && key_event.keyCode == swt(:home))
        file.home
        key_event.doit = false
      elsif (OS.mac? && key_event.keyCode == swt(:home)) || (!OS.mac? && Glimmer::SWT::SWTProxy.include?(key_event.stateMask, :ctrl) && key_event.keyCode == swt(:end))
        file.end
        key_event.doit = false
      elsif !OS.mac? && Glimmer::SWT::SWTProxy.include?(key_event.stateMask, :shift) && key_event.keyCode == swt(:home)
        file.select_to_start_of_line
        key_event.doit = false
      elsif !OS.mac? && Glimmer::SWT::SWTProxy.include?(key_event.stateMask, :shift) && key_event.keyCode == swt(:end)
        file.select_to_end_of_line
        key_event.doit = false
      elsif (OS.mac? && key_event.stateMask == swt(:ctrl) && extract_char(key_event) == 'a') || (!OS.mac? && key_event.keyCode == swt(:home))
        file.start_of_line
        key_event.doit = false
      elsif (OS.mac? && key_event.stateMask == swt(:ctrl) && extract_char(key_event) == 'e') || (!OS.mac? && key_event.keyCode == swt(:end))
        file.end_of_line
        key_event.doit = false
      elsif key_event.stateMask == swt(COMMAND_KEY) && extract_char(key_event) == '/'
        Command.do(file, :comment_line!)
        key_event.doit = false
      elsif key_event.stateMask == swt(COMMAND_KEY) && extract_char(key_event) == 'k'
        Command.do(file, :kill_line!)
        key_event.doit = false
      elsif key_event.stateMask == swt(COMMAND_KEY) && extract_char(key_event) == 'd'
        Command.do(file, :duplicate_line!)
        key_event.doit = false
      elsif key_event.stateMask == swt(COMMAND_KEY) && extract_char(key_event) == '['
        Command.do(file, :outdent!)
        key_event.doit = false
      elsif key_event.stateMask == swt(COMMAND_KEY) && extract_char(key_event) == ']'
        Command.do(file, :indent!)
        key_event.doit = false
      elsif Glimmer::SWT::SWTProxy.include?(key_event.stateMask, COMMAND_KEY, :shift) && key_event.keyCode == swt(:cr)
        Command.do(file, :prefix_new_line!)
        key_event.doit = false
      elsif key_event.stateMask == swt(COMMAND_KEY) && key_event.keyCode == swt(:cr)
        Command.do(file, :insert_new_line!)
        key_event.doit = false
      elsif key_event.keyCode == swt(:page_up)
        file.page_up
        key_event.doit = false
      elsif key_event.keyCode == swt(:page_down)
        file.page_down
        key_event.doit = false
      elsif key_event.stateMask == swt(COMMAND_KEY) && key_event.keyCode == swt(:arrow_up)
        Command.do(file, :move_up!)
        key_event.doit = false
      elsif key_event.stateMask == swt(COMMAND_KEY) && key_event.keyCode == swt(:arrow_down)
        Command.do(file, :move_down!)
        key_event.doit = false
      elsif key_event.stateMask == swt(COMMAND_KEY) && extract_char(key_event) == '='
        bump_font_height_up
      elsif key_event.stateMask == swt(COMMAND_KEY) && extract_char(key_event) == '-'
        bump_font_height_down
      elsif key_event.stateMask == swt(COMMAND_KEY) && extract_char(key_event) == '0'
        restore_font_height
      end
    }
    on_verify_text { |verify_event|
      # TODO convert these into File commands to support Undo/Redo
      case verify_event.text
      when "\n"
        if file.selection_count.to_i == 0
          verify_event.text += file.current_line_indentation
        end
        # TODO implement this to borrowed line of code from Glimmer Meta-Sample
#               verify_event.text += ' '*2 if line.strip.end_with?('{') || line.strip.match(/do[ ]+([|][^|]+[|])?$/) || line.start_with?('class') || line.start_with?('module') || line.strip.start_with?('def')
      when "\t"
        Command.do(file, :indent!)
        verify_event.doit = false
      end
    }
  }
end

#restore_font_height ⇒ Object 



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# File 'lib/views/glimmer/gladiator/text_editor.rb', line 227

def restore_font_height
  return if @original_font_height.nil?
  update_font_height(@original_font_height)
  @original_font_height = nil
end

#text_widget ⇒ Object 



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# File 'lib/views/glimmer/gladiator/text_editor.rb', line 103

def text_widget
  @text_proxy.swt_widget
end

#update_font_height(new_font_height) ⇒ Object 



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# File 'lib/views/glimmer/gladiator/text_editor.rb', line 233

def update_font_height(new_font_height)
  return if new_font_height.nil?
  @text_proxy.font = {name: font_datum.name, height: new_font_height, style: font_datum.style}
  @line_numbers_text&.font = {name: font_datum.name, height: new_font_height, style: font_datum.style}
  @body_root.shell_proxy.layout(true, true)
  @body_root.shell_proxy.pack_same_size
end