Class: VMAgui

Inherits:
Object
  • Object
show all
Defined in:
lib/vimamsa/gui.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ VMAgui

Returns a new instance of VMAgui.



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# File 'lib/vimamsa/gui.rb', line 199

def initialize()
  @two_column = false
  @active_column = 1
  @show_overlay = true
  @da = nil
  @sws = []
  @buffers = {}
  @view = nil
  @buf1 = nil
  @img_resizer_active = false
  @windows = {}
  @app = nil
  @entry_has_focus = false
end

Instance Attribute Details

#action_trail_label ⇒ Object (readonly)

Returns the value of attribute action_trail_label.



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# File 'lib/vimamsa/gui.rb', line 197

def action_trail_label
  @action_trail_label
end

#active_window ⇒ Object (readonly)

Returns the value of attribute active_window.



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# File 'lib/vimamsa/gui.rb', line 197

def active_window
  @active_window
end

#app ⇒ Object (readonly)

Returns the value of attribute app.



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# File 'lib/vimamsa/gui.rb', line 197

def app
  @app
end

#buf1 ⇒ Object

Returns the value of attribute buf1.



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# File 'lib/vimamsa/gui.rb', line 196

def buf1
  @buf1
end

#buffers ⇒ Object

Returns the value of attribute buffers.



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# File 'lib/vimamsa/gui.rb', line 196

def buffers
  @buffers
end

#delex ⇒ Object

Returns the value of attribute delex.



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# File 'lib/vimamsa/gui.rb', line 196

def delex
  @delex
end

#file_panel ⇒ Object (readonly)

Returns the value of attribute file_panel.



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# File 'lib/vimamsa/gui.rb', line 197

def file_panel
  @file_panel
end

#func_panel ⇒ Object (readonly)

Returns the value of attribute func_panel.



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# File 'lib/vimamsa/gui.rb', line 197

def func_panel
  @func_panel
end

#overlay ⇒ Object

Returns the value of attribute overlay.



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# File 'lib/vimamsa/gui.rb', line 196

def overlay
  @overlay
end

#statnfo ⇒ Object

Returns the value of attribute statnfo.



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# File 'lib/vimamsa/gui.rb', line 196

def statnfo
  @statnfo
end

#subtitle ⇒ Object (readonly)

Returns the value of attribute subtitle.



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# File 'lib/vimamsa/gui.rb', line 197

def subtitle
  @subtitle
end

#sw1 ⇒ Object

Returns the value of attribute sw1.



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# File 'lib/vimamsa/gui.rb', line 196

def sw1
  @sw1
end

#sw2 ⇒ Object

Returns the value of attribute sw2.



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# File 'lib/vimamsa/gui.rb', line 196

def sw2
  @sw2
end

#sws ⇒ Object

Returns the value of attribute sws.



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# File 'lib/vimamsa/gui.rb', line 196

def sws
  @sws
end

#two_c ⇒ Object

Returns the value of attribute two_c.



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# File 'lib/vimamsa/gui.rb', line 196

def two_c
  @two_c
end

#two_column ⇒ Object (readonly)

Returns the value of attribute two_column.



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# File 'lib/vimamsa/gui.rb', line 197

def two_column
  @two_column
end

#view ⇒ Object

Returns the value of attribute view.



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# File 'lib/vimamsa/gui.rb', line 196

def view
  @view
end

#window ⇒ Object

Returns the value of attribute window.



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# File 'lib/vimamsa/gui.rb', line 196

def window
  @window
end

#windows ⇒ Object (readonly)

Returns the value of attribute windows.



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# File 'lib/vimamsa/gui.rb', line 197

def windows
  @windows
end

Instance Method Details

#add_to_minibuf(msg) ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 325

def add_to_minibuf(msg)
  @minibuf_messages ||= []
  @minibuf_messages.unshift(msg)
  @minibuf_messages = @minibuf_messages.first(50)

  @minibuf_label.label = msg
  @minibuf_textview.buffer.text = @minibuf_messages.join("\n")

  return if @minibuf_expanded

  @minibuf_stack.visible_child_name = "label"
  @minibuf_content.visible = true

  @minibuf_vpane.position = @minibuf_vpane.height - 26
  
  GLib::Source.remove(@minibuf_hide_source) if @minibuf_hide_source
  @minibuf_hide_source = GLib::Timeout.add(7000) do
    @minibuf_content.visible = false
    @minibuf_hide_source = nil
    false
  end
end

#clear_overlay ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 271

def clear_overlay()
  if @da != nil
    # @overlay.remove(@da)
    @active_window[:overlay].remove_overlay(@da)
  end
end

#current_view ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 949

def current_view
  return @active_window[:sw].child
end

#debug_idle_func ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 486

def debug_idle_func
  return false if @shutdown == true
  if Time.now - @last_debug_idle > 1
    @last_debug_idle = Time.now
    # puts "DEBUG IDLE #{Time.now}"
    # @view.check_controllers
  end

  ctrl_fn = File.expand_path(get_dot_path("ripl_ctrl"))
  # Allows to debug in case keyboard handling is lost
  if File.exist?(ctrl_fn)
    File.delete(ctrl_fn)
    start_ripl
  end

  sleep 0.02
  return true
end

#editor_area ⇒ Object

── editor-area helpers (delegates to @minibuf_vpane start child) ─────────



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# File 'lib/vimamsa/gui.rb', line 385

def editor_area
  @minibuf_vpane.start_child
end

#end_overlay_draw ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 287

def end_overlay_draw()
  @da.show
end

#ensure_cursor_drawn ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1035

def ensure_cursor_drawn
  # view.place_cursor_onscreen #TODO: needed?
  view.draw_cursor
end

#file_panel_init ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1040

def file_panel_init
  @file_panel = FileTreePanel.new
  @file_panel_shown = false
end

#file_panel_refresh ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1045

def file_panel_refresh
  return unless @file_panel_shown
  @file_panel.refresh
end

#func_panel_init ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1085

def func_panel_init
  @func_panel = FuncPanel.new
  @func_panel_shown = false
end

#func_panel_refresh ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1090

def func_panel_refresh
  return unless @func_panel_shown
  @func_panel.refresh
end

#handle_deltas ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 307

def handle_deltas()
  view.delete_cursor_char
  while d = buf.deltas.shift
    pos = d[0]
    op = d[1]
    num = d[2]
    txt = d[3]
    if op == DELETE
      startiter = @buf1.get_iter_at(:offset => pos)
      enditer = @buf1.get_iter_at(:offset => pos + num)
      @buf1.delete(startiter, enditer)
    elsif op == INSERT
      startiter = @buf1.get_iter_at(:offset => pos)
      @buf1.insert(startiter, txt)
    end
  end
end

#handle_image_resize ⇒ Object

TODO:gtk4



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# File 'lib/vimamsa/gui.rb', line 248

def handle_image_resize #TODO:gtk4
  return if @img_resizer_active == true
  @dtime = Time.now

  $gcrw = 0
  vma.gui.window.signal_connect "configure-event" do |widget, cr|
    if $gcrw != cr.width
      @delex.run
    end
    $gcrw = cr.width
    false
  end

  @img_resizer_active = true
end

#hide_file_panel ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1072

def hide_file_panel
  return unless @file_panel_shown
  inner = @file_panel_pane.end_child
  @file_panel_pane.set_start_child(nil)
  @file_panel_pane.set_end_child(nil)
  set_editor_area(inner)
  @file_panel_shown = false
end

#hide_func_panel ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1122

def hide_func_panel
  return unless @func_panel_shown
  inner = @func_panel_pane.end_child
  @func_panel_pane.set_start_child(nil)
  @func_panel_pane.set_end_child(nil)
  if @file_panel_shown
    @file_panel_pane.set_end_child(inner)
  else
    set_editor_area(inner)
  end
  @func_panel_shown = false
end

#idle_ensure_cursor_drawn ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1031

def idle_ensure_cursor_drawn
  run_as_idle proc { self.ensure_cursor_drawn }
end

#idle_set_size ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 587

def idle_set_size()
  # Need to wait for a while to window to be maximized to get correct @window.width
  @window.maximize
  wait_for_resize(@window)
  # Set new size as half of the screeen
  width = @window.width / 2
  height = @window.height - 5
  width = 600 if width < 600
  height = 600 if height < 600

  #Minimum size:
  @window.set_size_request(600, 600)
  @window.set_default_size(width, height)
  debug "size #{[width, height]}", 2
  @window.unmaximize

  #set_default_size doesn't always have effect if run immediately
  wait_for_resize(@window)
  @window.set_default_size(width, height)

  return false
end

#init_header_bar ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 463

def init_header_bar()
  header = Gtk::HeaderBar.new
  @header = header

  file_box = Gtk::Box.new(:horizontal, 0)
  file_box.style_context.add_class("linked")
  file_box.append(make_header_button("hdr-open", "document-open-symbolic", proc { open_file_dialog }))
  file_box.append(make_header_button("hdr-save", "document-save-symbolic", proc { buf.save }))
  file_box.append(make_header_button("hdr-new", "document-new-symbolic", proc { create_new_file }))
  header.pack_start(file_box)

  nav_box = Gtk::Box.new(:horizontal, 0)
  nav_box.style_context.add_class("linked")
  nav_box.append(make_header_button("hdr-prev", "pan-start-symbolic", proc { history_switch_backwards }))
  nav_box.append(make_header_button("hdr-next", "pan-end-symbolic", proc { history_switch_forwards }))
  nav_box.append(make_header_button("hdr-close", "window-close-symbolic", proc { bufs.close_current_buffer }))
  header.pack_start(nav_box)

  # header.pack_end()

  @window.titlebar = header
end

#init_menu ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 780

def init_menu
  @menu = Vimamsa::Menu.new(@menubar, @app)
end

#init_minibuffer ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 393

def init_minibuffer
  @minibuf_messages = []
  @minibuf_expanded = false
  @minibuf_history_height = 120

  css = "label.minibuf, textview.minibuf { color: #cdd6f4; font-family: Monospace; font-size: 10pt; padding: 3px 8px; background-color: #1e1e2e; }"
  provider = Gtk::CssProvider.new
  provider.load(data: css)

  # Collapsed view: single line, latest message
  @minibuf_label = Gtk::Label.new("")
  @minibuf_label.xalign = 0.0
  @minibuf_label.hexpand = true
  @minibuf_label.ellipsize = Pango::EllipsizeMode::END
  @minibuf_label.add_css_class("minibuf")
  @minibuf_label.style_context.add_provider(provider)

  # Expanded view: scrollable history (fills whatever height the pane gives)
  @minibuf_textview = Gtk::TextView.new
  @minibuf_textview.editable = false
  @minibuf_textview.cursor_visible = false
  @minibuf_textview.wrap_mode = :word_char
  @minibuf_textview.add_css_class("minibuf")
  @minibuf_textview.style_context.add_provider(provider)
  @minibuf_textview.vexpand = true

  scroll = Gtk::ScrolledWindow.new
  scroll.set_policy(:never, :automatic)
  scroll.set_child(@minibuf_textview)
  scroll.vexpand = true

  @minibuf_stack = Gtk::Stack.new
  @minibuf_stack.vhomogeneous = false
  @minibuf_stack.transition_type = :crossfade
  @minibuf_stack.transition_duration = 100
  @minibuf_stack.add_named(@minibuf_label, "label")
  @minibuf_stack.add_named(scroll, "history")

  @minibuf_content = Gtk::Box.new(:vertical, 0)
  @minibuf_content.append(Gtk::Separator.new(:horizontal))
  @minibuf_content.append(@minibuf_stack)
  @minibuf_content.visible = false  # hidden until first message

  # Vertical pane: editor fills top, minibuffer sits at bottom, draggable
  editor_w = @windows[1][:overlay]
  @vbox.remove(editor_w)

  @minibuf_vpane = Gtk::Paned.new(:vertical)
  @minibuf_vpane.vexpand = true
  @minibuf_vpane.hexpand = true
  @minibuf_vpane.resize_start_child = true   # editor absorbs window resize
  @minibuf_vpane.resize_end_child = false    # minibuffer keeps its height
  @minibuf_vpane.shrink_end_child = true     # allow fully collapsing minibuffer
  @minibuf_vpane.set_start_child(editor_w)
  @minibuf_vpane.set_end_child(@minibuf_content)

  @vbox.attach(@minibuf_vpane, 0, 2, 2, 1)
  @minibuf_hide_source = nil
end

#init_window ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 610

def init_window
  @last_debug_idle = Time.now
  app = Gtk::Application.new("net.samiddhi.vimamsa.r#{rand(1000)}", :flags_none)
  @app = app

  Gtk::Settings.default.gtk_application_prefer_dark_theme = true
  Gtk::Settings.default.gtk_theme_name = "Adwaita"
  Gtk::Settings.default.gtk_cursor_blink = false
  Gtk::Settings.default.gtk_cursor_blink_time = 4000

  app.signal_connect "activate" do
    @window = Gtk::ApplicationWindow.new(app)
    @window.set_application(app)

    @window.signal_connect("close-request") do
      vma.shutdown
      true  # prevent default destroy; shutdown->gui.quit handles it
    end

    @window.title = "Multiple Views"
    @vpaned = Gtk::Paned.new(:vertical)

    @vbox = Gtk::Grid.new()
    @window.set_child(@vbox)

    Thread.new {
      GLib::Idle.add(proc { debug_idle_func })
    }

    reset_controllers

    focus_controller = Gtk::EventControllerFocus.new

    focus_controller.signal_connect("enter") do
      debug "Gained focus"
      draw_cursor_bug_workaround
    end
    @window.add_controller(focus_controller)

    motion_controller = Gtk::EventControllerMotion.new
    motion_controller.signal_connect("motion") do |controller, x, y|
      # label.set_text("Mouse at: (%.1f, %.1f)" % [x, y])
      # puts "MOVE #{x} #{y}"

      # Cursor vanishes when hovering over menubar
      draw_cursor_bug_workaround if y < 30
      @last_cursor = [x, y]
      @cursor_move_time = Time.now
    end
    @window.add_controller(motion_controller)

    @windows[1] = new_window(1)

    @last_adj_time = Time.now

    # To show keyboard key binding state
    @statnfo = Gtk::Label.new

    # To show e.g. current folder
    @subtitle = Gtk::Label.new("")

    @statbox = Gtk::Box.new(:horizontal, 2)
    @statnfo.set_size_request(150, 10)
    @statbox.append(@subtitle)
    @subtitle.hexpand = true
    @statbox.append(@statnfo)
    provider = Gtk::CssProvider.new
    @statnfo.add_css_class("statnfo")
    provider.load(data: "label.statnfo {   background-color:#353535; font-size: 10pt; margin-top:2px; margin-bottom:2px; align:right;}")

    provider = Gtk::CssProvider.new
    @statnfo.style_context.add_provider(provider)

    # numbers: left, top, width, height
    @vbox.attach(@windows[1][:overlay], 0, 2, 2, 1)

    # column, row, width height
    @vbox.attach(@statbox, 1, 1, 1, 1)

    init_minibuffer

    menubar = Gio::Menu.new
    @menubar = menubar

    # TODO: Doesn't work, why?:
    # menubar_bar = Gtk::PopoverMenuBar.new(menu_model: menubar)

    menubar_bar = Gtk::PopoverMenuBar.new()
    menubar_bar.set_menu_model(menubar)

    menubar_bar.hexpand = true
    @action_trail_label = Gtk::Label.new("")
    @action_trail_label.add_css_class("action-trail")
    menubar_row = Gtk::Box.new(:horizontal, 0)
    menubar_row.append(menubar_bar)
    menubar_row.append(@action_trail_label)
    @vbox.attach(menubar_row, 0, 0, 2, 1)

    @active_window = @windows[1]

    init_header_bar
    file_panel_init
    func_panel_init

    @window.show

    surface = @window.native.surface
    tt = Time.now
    surface.signal_connect("layout") do
      # puts "Window resized or moved, other redraw."
    end

    run_as_idle proc { idle_set_size }

    prov = Gtk::CssProvider.new
    # See gtk-4.9.4/gtk/theme/Default/_common.scss  on how to theme
    # gtksourceview/gtksourcestyleschemepreview.c
    # gtksourceview/gtksourcestylescheme.c
    prov.load(data: " headerbar { padding: 0 0px; min-height: 16px; border-width: 0 0 0px; border-style: solid; }
    
    textview border.left gutter { color: #8aa; font-size:8pt; }     
    
    textview border.left gutter { padding: 0px 0px 0px 0px; margin: 0px 0px 0px 0px; color: #8aa; font-size:9pt; }     
    
       headerbar .title {
    font-weight: bold;
    font-size: 11pt;
    color: #cdffee;
}

 headerbar > windowhandle > box .start {
    border-spacing: 6px;
}
 
 headerbar windowcontrols button {
      min-height: 15px;
      min-width: 15px;
    }

 popover background > contents { padding: 8px; border-radius: 20px; }

 label.action-trail { font-family: monospace; font-size: 10pt; margin-right: 8px; color: #aaaaaa; }
       ")
    @window.style_context.add_provider(prov)

    sc = Gtk::StyleContext.add_provider_for_display(Gdk::Display.default, prov)

    vma.start
  end

  GLib::Idle.add(proc { self.monitor })

  app.run
end

#is_buffer_open(bufid) ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 897

def is_buffer_open(bufid)
  openbufids = @windows.keys.collect { |x| @windows[x][:sw].child.bufo.id }
  return openbufids.include?(bufid)
end

#make_header_button(action_id, icon, cb) ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 453

def make_header_button(action_id, icon, cb)
  act = Gio::SimpleAction.new(action_id)
  @app.add_action(act)
  act.signal_connect("activate") { |_a, _p| cb.call }
  btn = Gtk::Button.new
  btn.set_child(Gtk::Image.new(icon_name: icon))
  btn.action_name = "app.#{action_id}"
  btn
end

#menu ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 784

def menu
  @menu
end

#minibuf_toggle_expanded ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 348

def minibuf_toggle_expanded
  @minibuf_expanded = !@minibuf_expanded
  if @minibuf_expanded
    GLib::Source.remove(@minibuf_hide_source) if @minibuf_hide_source
    @minibuf_hide_source = nil
    @minibuf_content.visible = true
    @minibuf_stack.visible_child_name = "history"
    run_as_idle proc {
      pos = @minibuf_vpane.max_position - (@minibuf_history_height || 120)
      @minibuf_vpane.position = [pos, 0].max
    }
  else
    # Save height before collapsing so next open restores it
    @minibuf_history_height = @minibuf_vpane.max_position - @minibuf_vpane.position
    @minibuf_stack.visible_child_name = "label"
    run_as_idle proc {
      #TODO: automatic way of resizing doesn't work:
      # h = [@minibuf_label.height, 24].max + 2
      # @minibuf_vpane.position = @minibuf_vpane.max_position - h
      @minibuf_vpane.position = @minibuf_vpane.height - 26
    }
    @minibuf_hide_source = GLib::Timeout.add(7000) do
      @minibuf_content.visible = false
      @minibuf_expanded = false
      @minibuf_stack.visible_child_name = "label"
      @minibuf_hide_source = nil
      false
    end
  end
end

#monitor ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 765

def monitor
  swa = @windows[1][:sw]
  @monitor_time ||= Time.now
  @sw_width ||= swa.width
  return true if Time.now - @monitor_time < 0.2
  # Detect element resize
  if swa.width != @sw_width
    debug "Width change sw_width #{@sw_width}"
    @sw_width = swa.width
    DelayExecutioner.exec(id: :scale_images, wait: 0.7, callable: proc { debug ":scale_images"; vma.gui.scale_all_images })
  end
  @monitor_time = Time.now
  return true
end

#new_scrolled_window ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1003

def new_scrolled_window
  sw = Gtk::ScrolledWindow.new
  sw.set_policy(:automatic, :automatic)
  @last_adj_time = Time.now
  sw.vadjustment.signal_connect("value-changed") { |x|
    @last_adj_time = Time.now
    debug "@sw.vadjustment #{x.value}", 2
  }
  return sw
end

#new_window(win_id) ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 819

def new_window(win_id)
  n_sw = Gtk::ScrolledWindow.new
  n_sw.set_policy(:automatic, :automatic)
  n_overlay = Gtk::Overlay.new
  n_overlay.add_overlay(n_sw)
  # @pane = Gtk::Paned.new(:horizontal)

  win = { :sw => n_sw, :overlay => n_overlay, :id => win_id }
  # @windows[2] = { :sw => @sw2, :overlay => @overlay2, :id => 2 }

  # @vbox.remove(@overlay)

  # @pane.set_start_child(@overlay2)
  # @pane.set_end_child(@overlay)

  # numbers: left, top, width, height
  # @vbox.attach(@pane, 0, 2, 2, 1)

  n_sw.vexpand = true
  n_sw.hexpand = true

  n_overlay.vexpand = true
  n_overlay.hexpand = true

  # TODO: remove??
  n_sw.vadjustment.signal_connect("value-changed") { |x|
 # pp x.page_increment
         # pp x.page_size
         # pp x.step_increment
         # pp x.upper
         # pp x.value
         # pp x
         # @last_adj_time = Time.now
    }

  # @sw2.show
  return win
end

#notify_entry_focus(active) ⇒ Object

Called by embedded widgets (e.g. calculator entries) when a text entry gains or loses focus, so the vimamsa key handler knows to step aside.



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# File 'lib/vimamsa/gui.rb', line 216

def notify_entry_focus(active)
  @entry_has_focus = active
end

#overlay_draw_text(text, textpos) ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 278

def overlay_draw_text(text, textpos)
  # debug "overlay_draw_text #{[x,y]}"
  (x, y) = @view.pos_to_coord(textpos)
  # debug "overlay_draw_text #{[x,y]}"
  label = Gtk::Label.new("<span background='#000000ff' foreground='#ff0000' weight='ultrabold'>#{text}</span>")
  label.use_markup = true
  @da.put(label, x, y)
end

#page_down(multip: 1.0) ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1014

def page_down(multip: 1.0)
  sw = @active_window[:sw]
  va = sw.vadjustment
  newval = va.value + va.page_increment * multip
  va.value = newval
  sw.child.set_cursor_to_top
end

#page_up(multip: 1.0) ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1022

def page_up(multip: 1.0)
  sw = @active_window[:sw]
  va = sw.vadjustment
  newval = va.value - va.page_increment * multip
  newval = 0 if newval < 0
  va.value = newval
  sw.child.set_cursor_to_top
end

#quit ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 225

def quit
  @window.destroy
  @shutdown = true
  for t in Thread.list
    if t != Thread.current
      t.exit
    end
  end
  @app.quit
end

#remove_extra_controllers ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 571

def remove_extra_controllers
  clist = vma.gui.window.observe_controllers
  to_remove = []
  (0..(clist.n_items - 1)).each { |x|
    ctr = clist.get_item(x)
    if ctr.class == Gtk::EventControllerKey and ctr != @press
      to_remove << ctr
    end
  }
  if to_remove.size > 0
    # puts "Removing controllers:"
    # pp to_remove
    to_remove.each { |x| vma.gui.window.remove_controller(x) }
  end
end

#reset_controllers ⇒ Object

Remove widget event controllers added by gtk, and add our own.



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# File 'lib/vimamsa/gui.rb', line 506

def reset_controllers
  clist = @window.observe_controllers
  to_remove = []
  (0..(clist.n_items - 1)).each { |x|
    ctr = clist.get_item(x)
    if ctr.class == Gtk::EventControllerKey
      to_remove << ctr
    end
  }
  if to_remove.size > 0
    # debug "Removing controllers:"
    # pp to_remove
    to_remove.each { |x| @window.remove_controller(x) }
  end

  press = Gtk::EventControllerKey.new
  @press = press
  # to prevent SourceView key handler capturing any keypresses
  press.set_propagation_phase(Gtk::PropagationPhase::CAPTURE)
  @window.add_controller(press)

  press.signal_connect "key-pressed" do |gesture, keyval, keycode, y|
    # Step aside when a text entry widget (e.g. calculator var field) has focus.
    # @entry_has_focus is set explicitly via notify_entry_focus by those widgets.
    next false if @entry_has_focus
    next false if @kbd_passthrough
    name = Gdk::Keyval.to_name(keyval)
    uki = Gdk::Keyval.to_unicode(keyval)
    keystr = uki.chr("UTF-8")
    debug "key pressed #{keyval} #{keycode} name:#{name} str:#{keystr} unicode:#{uki}"
    buf.view.handle_key_event(keyval, keystr, :key_press)
    true
  end

  press.signal_connect "modifiers" do |eventctr, modtype|
    # eventctr: Gtk::EventControllerKey
    # modtype: Gdk::ModifierType
    debug "modifier change"
    vma.kbd.modifiers[:ctrl] = modtype.control_mask?
    vma.kbd.modifiers[:alt] = modtype.alt_mask?
    vma.kbd.modifiers[:hyper] = modtype.hyper_mask?
    vma.kbd.modifiers[:lock] = modtype.lock_mask?
    vma.kbd.modifiers[:meta] = modtype.meta_mask?
    vma.kbd.modifiers[:shift] = modtype.shift_mask?
    vma.kbd.modifiers[:super] = modtype.super_mask?

    #TODO:?
    # button1_mask?
    # ...
    # button5_mask?
    true # = handled, do not propagate further
  end

  press.signal_connect "key-released" do |gesture, keyval, keycode, y|
    next false if @entry_has_focus
    next false if @kbd_passthrough
    name = Gdk::Keyval.to_name(keyval)
    uki = Gdk::Keyval.to_unicode(keyval)
    keystr = uki.chr("UTF-8")
    debug "key released #{keyval} #{keycode} name:#{name} str:#{keystr} unicode:#{uki}"
    buf.view.handle_key_event(keyval, keystr, :key_release)
    true # = handled, do not propagate further
  end
end

#run ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 220

def run
  init_window
  # init_rtext
end

#run_after_scrolling(p) ⇒ Object

Run proc after animated scrolling has stopped (e.g. after page down)



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# File 'lib/vimamsa/gui.rb', line 292

def run_after_scrolling(p)
  Thread.new {
    # After running
    #   view.signal_emit("move-cursor", Gtk::MovementStep.new(:PAGES)
    # have to wait for animated page down scrolling to actually start
    # Then have to wait determine that it has stopped if scrolling adjustment stops changing. There should be a better way to do this.
    sleep 0.1
    while Time.now - @last_adj_time < 0.1
      sleep 0.1
    end
    debug "SCROLLING ENDED", 2
    run_as_idle p
  }
end

#scale_all_images ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 236

def scale_all_images
  for k, window in @windows
    bu = window[:sw].child.bufo
    for img in bu.images
      if !img[:obj].destroyed?
        img[:obj].scale_image
      end
    end
  end
  false
end

#set_active_window(id) ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 925

def set_active_window(id)
  return if !@two_column
  return if id == @active_column
  return if id == @active_window[:id]

  if @windows[id].nil?
    debug "No such window #{id}", 2
    return
  end

  @active_window = @windows[id]
  @active_column = id

  @active_window[:sw].child.focus_in()
  for k, w in @windows
    if w != @active_window
      fochild = w[:sw].child
      run_as_idle proc { fochild.focus_out() }
    end
  end

  vma.buffers.set_current_buffer_by_id(@active_window[:sw].child.bufo.id)
end

#set_buffer_to_window(bufid, winid) ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 953

def set_buffer_to_window(bufid, winid)
  view = @buffers[bufid]
  debug "vma.gui.set_buffer_to_window(#{bufid}), winid=#{winid}"
  buf1 = view.buffer

  @windows[winid][:sw].set_child(view)
  idle_ensure_cursor_drawn

  #TODO:???
  # @view = view
  # @buf1 = buf1
  # $view = view ???
  # $vbuf = buf1

end

#set_current_buffer(id) ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 969

def set_current_buffer(id)
  view2 = @buffers[id]
  debug "vma.gui.set_current_buffer(#{id}), view=#{view}"
  buf1 = view2.buffer
  @view = view2
  @buf1 = buf1
  $view = view
  $vbuf = buf1

  # Check if buffer is already open in another column
  if @two_column and @active_column == 2 and id == @windows[1][:sw].child.bufo.id
    toggle_active_window
  elsif @two_column && @active_column == 1 && !@windows[2][:sw].child.nil? && id == @windows[2][:sw].child.bufo.id
    #TODO: should not need [email protected]? here. If this happens then other column is empty.
    toggle_active_window
  else
    #TODO: improve
    swa = @active_window[:sw]
    ol = @active_window[:overlay]
    ol.remove_overlay(swa)
    swa.set_child(nil)
    # Creating a new ScrolledWindow every time to avoid a layout bug
    # https://gitlab.gnome.org/GNOME/gtk/-/issues/6189
    swb = new_scrolled_window
    swb.set_child(view2)
    ol.add_overlay(swb)
    @active_window[:view] = view
    @active_window[:sw] = swb
  end
  view.grab_focus

  idle_ensure_cursor_drawn
end

#set_current_view(view) ⇒ Object

Activate that window which has the given view



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# File 'lib/vimamsa/gui.rb', line 912

def set_current_view(view)
  # Window of current view:
  w = @windows.find { |k, v| v[:sw].child == view }
  # All other windows:
  otherw = @windows.find_all { |k, v| v[:sw].child != view }
  if !w.nil?
    set_active_window(w[0])
    for k, x in otherw
      x[:sw].child.focus_out()
    end
  end
end

#set_editor_area(w) ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 389

def set_editor_area(w)
  @minibuf_vpane.set_start_child(w)
end

#set_one_column ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 796

def set_one_column
  return if !@two_column
  #This always closes the leftmost column/window
  #TODO: close rightmost column if left active
  set_active_window(1)

  @windows[2][:sw].set_child(nil)
  @windows.delete(2)
  w1 = @windows[1]

  @pane.set_start_child(nil)
  @pane.set_end_child(nil)

  if @func_panel_shown
    @func_panel_pane.set_end_child(w1[:overlay])
  elsif @file_panel_shown
    @file_panel_pane.set_end_child(w1[:overlay])
  else
    set_editor_area(w1[:overlay])
  end
  @two_column = false
end

#set_two_column ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 858

def set_two_column
  return if @two_column
  @windows[2] = new_window(2)

  w1 = @windows[1]
  w2 = @windows[2]

  # Remove overlay from its current parent and add the Gtk::Paned instead
  @pane = Gtk::Paned.new(:horizontal)
  if @func_panel_shown
    @func_panel_pane.set_end_child(nil)
    @pane.set_start_child(w2[:overlay])
    @pane.set_end_child(w1[:overlay])
    @func_panel_pane.set_end_child(@pane)
  elsif @file_panel_shown
    @file_panel_pane.set_end_child(nil)
    @pane.set_start_child(w2[:overlay])
    @pane.set_end_child(w1[:overlay])
    @file_panel_pane.set_end_child(@pane)
  else
    @minibuf_vpane.set_start_child(nil)  # unparent w1[:overlay] before re-parenting
    @pane.set_start_child(w2[:overlay])
    @pane.set_end_child(w1[:overlay])
    set_editor_area(@pane)
  end

  w2[:sw].show
  @two_column = true

  last = vma.buffers.get_last_visited_id
  if !last.nil?
    set_buffer_to_window(last, 2)
  else
    # If there is only one buffer, create a new one and add to the new window/column
    bf = create_new_buffer "\n\n", "buff", false
    set_buffer_to_window(bf.id, 2)
  end
end

#show_file_panel ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1050

def show_file_panel
  return if @file_panel_shown
  # If func panel is shown it sits in minibuf_vpane; wrap it too
  inner = if @func_panel_shown
    @func_panel_pane
  elsif @two_column
    @pane
  else
    @windows[1][:overlay]
  end
  @minibuf_vpane.set_start_child(nil)  # unparent inner before re-parenting
  @file_panel_pane = Gtk::Paned.new(:horizontal)
  @file_panel_pane.hexpand = true
  @file_panel_pane.vexpand = true
  @file_panel_pane.set_start_child(@file_panel.widget)
  @file_panel_pane.set_end_child(inner)
  @file_panel_pane.set_position(180)
  set_editor_area(@file_panel_pane)
  @file_panel_shown = true
  @file_panel.refresh
end

#show_func_panel ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1095

def show_func_panel
  return if @func_panel_shown
  if @file_panel_shown
    inner = @file_panel_pane.end_child
    @file_panel_pane.set_end_child(nil)
  elsif @two_column
    inner = @pane
    @minibuf_vpane.set_start_child(nil)
  else
    inner = @windows[1][:overlay]
    @minibuf_vpane.set_start_child(nil)
  end
  @func_panel_pane = Gtk::Paned.new(:horizontal)
  @func_panel_pane.hexpand = true
  @func_panel_pane.vexpand = true
  @func_panel_pane.set_start_child(@func_panel.widget)
  @func_panel_pane.set_end_child(inner)
  @func_panel_pane.set_position(160)
  if @file_panel_shown
    @file_panel_pane.set_end_child(@func_panel_pane)
  else
    set_editor_area(@func_panel_pane)
  end
  @func_panel_shown = true
  @func_panel.refresh
end

#show_message_history ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 379

def show_message_history
  minibuf_toggle_expanded
end

#start_overlay_draw ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 264

def start_overlay_draw()
  @da = Gtk::Fixed.new
  @active_window[:overlay].add_overlay(@da)

  # @overlay.set_overlay_pass_through(@da, true) #TODO:gtk4
end

#toggle_active_window ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 902

def toggle_active_window()
  return if !@two_column
  if @active_column == 1
    set_active_window(2)
  else
    set_active_window(1)
  end
end

#toggle_file_panel ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1081

def toggle_file_panel
  @file_panel_shown ? hide_file_panel : show_file_panel
end

#toggle_func_panel ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 1135

def toggle_func_panel
  @func_panel_shown ? hide_func_panel : show_func_panel
end

#toggle_two_column ⇒ Object 



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# File 'lib/vimamsa/gui.rb', line 788

def toggle_two_column
  if @two_column
    set_one_column
  else
    set_two_column
  end
end