Class: VSourceView

Inherits:
GtkSource::View
  • Object
show all
Defined in:
lib/vimamsa/gui_sourceview.rb,
lib/vimamsa/gui_gtk_sourceview.rb

Instance Method Summary collapse

Constructor Details

#initialize(title = nil) ⇒ VSourceView

Returns a new instance of VSourceView.



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# File 'lib/vimamsa/gui_sourceview.rb', line 3

def initialize(title = nil)
  # super(:toplevel)
  super()
  puts "vsource init"
  @last_keyval = nil
  @last_event = [nil, nil]

  signal_connect "button-press-event" do |_widget, event|
    if event.button == Gdk::BUTTON_PRIMARY
      # puts "Gdk::BUTTON_PRIMARY"
      false
    elsif event.button == Gdk::BUTTON_SECONDARY
      # puts "Gdk::BUTTON_SECONDARY"
      true
    else
      true
    end
  end

  signal_connect("key_press_event") do |widget, event|
    handle_key_event(event, :key_press_event)
    true
  end

  signal_connect("key_release_event") do |widget, event|
    handle_key_event(event, :key_release_event)
    true
  end

  signal_connect("move-cursor") do |widget, event|
    $update_cursor = true
    false
  end

  signal_connect "button-release-event" do |widget, event|
    $buffer.set_pos(buffer.cursor_position)
    false
  end
  @curpos_mark = nil
end

Instance Method Details

#cursor_visible_idle_func ⇒ Object 



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# File 'lib/vimamsa/gui_sourceview.rb', line 212

def cursor_visible_idle_func
  puts "cursor_visible_idle_func"
  # From https://picheta.me/articles/2013/08/gtk-plus--a-method-to-guarantee-scrolling.html
  # vr = visible_rect

  # b = $view.buffer
  # iter = buffer.get_iter_at(:offset => buffer.cursor_position)
  # iterxy = get_iter_location(iter)

  sleep(0.01)
  # intr = iterxy.intersect(vr)
  if is_cursor_visible == false
    # set_cursor_pos(buffer.cursor_position)

    itr = buffer.get_iter_at(:offset => buffer.cursor_position)

    within_margin = 0.075 #margin as a [0.0,0.5) fraction of screen size
    use_align = false
    xalign = 0.5 #0.0=top 1.0=bottom, 0.5=center
    yalign = 0.5

    scroll_to_iter(itr, within_margin, use_align, xalign, yalign)

    # return true # Call this func again
  else
    return false # Don't call this idle func again
  end
end

#draw_cursor ⇒ Object 



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# File 'lib/vimamsa/gui_sourceview.rb', line 270

def draw_cursor
  if is_command_mode
    itr = buffer.get_iter_at(:offset => buf.pos)
    itr2 = buffer.get_iter_at(:offset => buf.pos + 1)
    $view.buffer.select_range(itr, itr2)
  elsif buf.visual_mode?
    puts "VISUAL MODE"
    (_start, _end) = buf.get_visual_mode_range2
    puts "#{_start}, #{_end}"
    itr = buffer.get_iter_at(:offset => _start)
    itr2 = buffer.get_iter_at(:offset => _end + 1)
    $view.buffer.select_range(itr, itr2)
  else # Insert mode
    itr = buffer.get_iter_at(:offset => buf.pos)
    $view.buffer.select_range(itr, itr)
    puts "INSERT MODE"
  end
end

#ensure_cursor_visible ⇒ Object 



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# File 'lib/vimamsa/gui_sourceview.rb', line 261

def ensure_cursor_visible
  if is_cursor_visible == false
    Thread.new {
      sleep 0.01
      GLib::Idle.add(proc { cursor_visible_idle_func })
    }
  end
end

#handle_deltas ⇒ Object 



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# File 'lib/vimamsa/gui_sourceview.rb', line 142

def handle_deltas()
  any_change = false
  while d = buf.deltas.shift
    any_change = true
    pos = d[0]
    op = d[1]
    num = d[2]
    txt = d[3]
    if op == DELETE
      startiter = buffer.get_iter_at(:offset => pos)
      enditer = buffer.get_iter_at(:offset => pos + num)
      buffer.delete(startiter, enditer)
    elsif op == INSERT
      startiter = buffer.get_iter_at(:offset => pos)
      buffer.insert(startiter, txt)
    end
  end
  if any_change
    gui_set_cursor_pos($buffer.id, $buffer.pos) #TODO: only when necessary
  end

  # sanity_check #TODO
end

#handle_key_event(event, sig) ⇒ Object 



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# File 'lib/vimamsa/gui_sourceview.rb', line 44

def handle_key_event(event, sig)
  if $update_cursor
    curpos = buffer.cursor_position
    puts "MOVE CURSOR: #{curpos}"
    buf.set_pos(curpos)
    $update_cursor = false
  end
  puts $view.visible_rect.inspect

  puts "key event"
  puts event

  key_name = event.string
  if event.state.control_mask?
    key_name = Gdk::Keyval.to_name(event.keyval)
    # Gdk::Keyval.to_name()
  end

  keyval_trans = {}
  keyval_trans[Gdk::Keyval::KEY_Control_L] = "ctrl"
  keyval_trans[Gdk::Keyval::KEY_Control_R] = "ctrl"

  keyval_trans[Gdk::Keyval::KEY_Escape] = "esc"

  keyval_trans[Gdk::Keyval::KEY_Return] = "enter"
  keyval_trans[Gdk::Keyval::KEY_ISO_Enter] = "enter"
  keyval_trans[Gdk::Keyval::KEY_KP_Enter] = "enter"
  keyval_trans[Gdk::Keyval::KEY_Alt_L] = "alt"
  keyval_trans[Gdk::Keyval::KEY_Alt_R] = "alt"

  keyval_trans[Gdk::Keyval::KEY_BackSpace] = "backspace"
  keyval_trans[Gdk::Keyval::KEY_KP_Page_Down] = "pagedown"
  keyval_trans[Gdk::Keyval::KEY_KP_Page_Up] = "pageup"
  keyval_trans[Gdk::Keyval::KEY_Page_Down] = "pagedown"
  keyval_trans[Gdk::Keyval::KEY_Page_Up] = "pageup"
  keyval_trans[Gdk::Keyval::KEY_Left] = "left"
  keyval_trans[Gdk::Keyval::KEY_Right] = "right"
  keyval_trans[Gdk::Keyval::KEY_Down] = "down"
  keyval_trans[Gdk::Keyval::KEY_Up] = "up"
  keyval_trans[Gdk::Keyval::KEY_space] = "space"

  keyval_trans[Gdk::Keyval::KEY_Shift_L] = "shift"
  keyval_trans[Gdk::Keyval::KEY_Shift_R] = "shift"
  keyval_trans[Gdk::Keyval::KEY_Tab] = "tab"

  key_trans = {}
  key_trans["\e"] = "esc"
  tk = keyval_trans[event.keyval]
  key_name = tk if !tk.nil?

  key_str_parts = []
  key_str_parts << "ctrl" if event.state.control_mask? and key_name != "ctrl"
  key_str_parts << "alt" if event.state.mod1_mask? and key_name != "alt"

  key_str_parts << key_name
  key_str = key_str_parts.join("-")
  keynfo = { :key_str => key_str, :key_name => key_name, :keyval => event.keyval }
  puts keynfo.inspect
  # $kbd.match_key_conf(key_str, nil, :key_press)
  # puts "key_str=#{key_str} key_"

  if key_str != "" # or prefixed_key_str != ""
    if sig == :key_release_event and event.keyval == @last_keyval
      $kbd.match_key_conf(key_str + "!", nil, :key_release)
      @last_event = [event, :key_release]
    elsif sig == :key_press_event
      $kbd.match_key_conf(key_str, nil, :key_press)
      @last_event = [event, key_str, :key_press]
    end
    @last_keyval = event.keyval #TODO: outside if?
  end

  handle_deltas

  # set_focus(5)
  # false

end

#is_cursor_visible ⇒ Object 



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# File 'lib/vimamsa/gui_sourceview.rb', line 241

def is_cursor_visible
  vr = visible_rect
  iter = buffer.get_iter_at(:offset => buffer.cursor_position)
  iterxy = get_iter_location(iter)
  iterxy.width = 1 if iterxy.width == 0
  iterxy.height = 1 if iterxy.height == 0

  intr = iterxy.intersect(vr)
  if intr.nil?
    puts iterxy.inspect
    puts vr.inspect
    # Ripl.start :binding => binding

    # exit!
    return false
  else
    return true
  end
end

#pos_to_coord(i) ⇒ Object 



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# File 'lib/vimamsa/gui_sourceview.rb', line 123

def pos_to_coord(i)
  b = buffer
  iter = b.get_iter_at(:offset => i)
  iterxy = get_iter_location(iter)
  winw = parent_window.width
  view_width = visible_rect.width
  gutter_width = winw - view_width

  x = iterxy.x + gutter_width
  y = iterxy.y

  # buffer_to_window_coords(Gtk::TextWindowType::TEXT, iterxy.x, iterxy.y).inspect
  # puts buffer_to_window_coords(Gtk::TextWindowType::TEXT, x, y).inspect
  (x, y) = buffer_to_window_coords(Gtk::TextWindowType::TEXT, x, y)
  # Ripl.start :binding => binding

  return [x, y]
end

#sanity_check ⇒ Object 



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# File 'lib/vimamsa/gui_sourceview.rb', line 166

def sanity_check()
  a = buffer.text
  b = buf.to_s
  # puts "===================="
  # puts a.lines[0..10].join()
  # puts "===================="
  # puts b.lines[0..10].join()
  # puts "===================="
  if a == b
    puts "Buffers match"
  else
    puts "ERROR: Buffer's don't match."
  end
end

#set_cursor_pos(pos) ⇒ Object 



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# File 'lib/vimamsa/gui_sourceview.rb', line 181

def set_cursor_pos(pos)
  # return
  itr = buffer.get_iter_at(:offset => pos)
  itr2 = buffer.get_iter_at(:offset => pos + 1)
  buffer.place_cursor(itr)

  # $view.signal_emit("extend-selection", Gtk::MovementStep.new(:PAGES), -1, false)

  within_margin = 0.075 #margin as a [0.0,0.5) fraction of screen size
  use_align = false
  xalign = 0.5 #0.0=top 1.0=bottom, 0.5=center
  yalign = 0.5

  if @curpos_mark.nil?
    @curpos_mark = buffer.create_mark("cursor", itr, false)
  else
    buffer.move_mark(@curpos_mark, itr)
  end
  scroll_to_mark(@curpos_mark, within_margin, use_align, xalign, yalign)
  $idle_scroll_to_mark = true
  ensure_cursor_visible

  # scroll_to_iter(itr, within_margin, use_align, xalign, yalign)

  # $view.signal_emit("extend-selection", Gtk::TextExtendSelection.new, itr,itr,itr2)
  # Ripl.start :binding => binding
  draw_cursor

  return true
end