Class: VSourceView

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

Overview

class VSourceView < Gtk::TextView

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(title, bufo) ⇒ VSourceView

def initialize(title = nil,bufo=nil)



19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
 
# File 'lib/vimamsa/gui_sourceview.rb', line 19

def initialize(title,bufo)
  # super(:toplevel)
  @highlight_matching_brackets = true
  super()
  @bufo = bufo #object of Buffer class buffer.rb
  debug "vsource init"
  @last_keyval = nil
  @last_event = [nil, nil]
  self.drag_dest_add_image_targets
  self.drag_dest_add_uri_targets

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

  signal_connect("drag-data-received") do |widget, event, x, y, data, info, time|
    puts "drag-data-received"
    puts
    if data.uris.size >= 1
      imgpath = CGI.unescape(data.uris[0])
      m = imgpath.match(/^file:\/\/(.*)/)
      if m
        fp = m[1]
        handle_drag_and_drop(fp)
      end
    end
    true
  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|
    vma.buf.set_pos(buffer.cursor_position)
    false
  end
  @curpos_mark = nil
end

Instance Attribute Details

#bufo ⇒ Object

Returns the value of attribute bufo.



5
6
7
 
# File 'lib/vimamsa/gui_sourceview.rb', line 5

def bufo
  @bufo
end

Instance Method Details

#cursor_visible_idle_func ⇒ Object 



246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
 
# File 'lib/vimamsa/gui_sourceview.rb', line 246

def cursor_visible_idle_func
  debug "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 



304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
 
# File 'lib/vimamsa/gui_sourceview.rb', line 304

def draw_cursor
  if is_command_mode
    itr = buffer.get_iter_at(:offset => @bufo.pos)
    itr2 = buffer.get_iter_at(:offset => @bufo.pos + 1)
    $view.buffer.select_range(itr, itr2)
  elsif @bufo.visual_mode?
    debug "VISUAL MODE"
    (_start, _end) = @bufo.get_visual_mode_range2
    debug "#{_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 => @bufo.pos)
    $view.buffer.select_range(itr, itr)
    debug "INSERT MODE"
  end
end

#ensure_cursor_visible ⇒ Object 



295
296
297
298
299
300
301
302
 
# File 'lib/vimamsa/gui_sourceview.rb', line 295

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 



176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
 
# File 'lib/vimamsa/gui_sourceview.rb', line 176

def handle_deltas()
  any_change = false
  while d = @bufo.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(@bufo.id, @bufo.pos) #TODO: only when necessary
  end

  # sanity_check #TODO
end

#handle_key_event(event, sig) ⇒ Object 



78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
 
# File 'lib/vimamsa/gui_sourceview.rb', line 78

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

  debug "key event"
  debug 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 }
  debug keynfo.inspect
  # $kbd.match_key_conf(key_str, nil, :key_press)
  # debug "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 



275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
 
# File 'lib/vimamsa/gui_sourceview.rb', line 275

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?
    debug iterxy.inspect
    debug vr.inspect
    # Ripl.start :binding => binding

    # exit!
    return false
  else
    return true
  end
end

#pos_to_coord(i) ⇒ Object 



157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
 
# File 'lib/vimamsa/gui_sourceview.rb', line 157

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
  # debug 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 



200
201
202
203
204
205
206
207
208
209
210
211
212
213
 
# File 'lib/vimamsa/gui_sourceview.rb', line 200

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

#set_cursor_pos(pos) ⇒ Object 



215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
 
# File 'lib/vimamsa/gui_sourceview.rb', line 215

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