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Merge pull request #255 from adamharrison/Multicursor 

Multicursor Implementation
This commit is contained in:
Adam 2021-06-18 17:38:54 -04:00 committed by GitHub
parent 0d65725b27 704e04396f
commit 4931110208
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 365 additions and 231 deletions
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297
data/core/commands/doc.lua
View File

@ -24,13 +24,16 @@ local function get_indent_string()
end
local function doc_multiline_selection(sort)
local line1, col1, line2, col2, swap = doc():get_selection(sort)
if line2 > line1 and col2 == 1 then
line2 = line2 - 1
col2 = #doc().lines[line2]
local function doc_multiline_selections(sort)
local iter, state, idx, line1, col1, line2, col2 = doc():get_selections(sort)
return function()
idx, line1, col1, line2, col2 = iter(state, idx)
if idx and line2 > line1 and col2 == 1 then
line2 = line2 - 1
col2 = #doc().lines[line2]
end
return idx, line1, col1, line2, col2
end
return line1, col1, line2, col2, swap
end
local function append_line_if_last_line(line)
@ -39,7 +42,6 @@ local function append_line_if_last_line(line)
end
end
local function save(filename)
doc():save(filename and core.normalize_to_project_dir(filename))
local saved_filename = doc().filename
@ -47,6 +49,33 @@ local function save(filename)
core.log("Saved \"%s\"", saved_filename)
end
local function cut_or_copy(delete)
local full_text = ""
for idx, line1, col1, line2, col2 in doc():get_selections() do
if line1 ~= line2 or col1 ~= col2 then
local text = doc():get_text(line1, col1, line2, col2)
if delete then
doc():delete_to_cursor(idx, 0)
end
full_text = full_text == "" and text or (full_text .. "\n" .. text)
doc().cursor_clipboard[idx] = text
else
doc().cursor_clipboard[idx] = ""
end
end
system.set_clipboard(full_text)
end
local function split_cursor(direction)
local new_cursors = {}
for _, line1, col1 in doc():get_selections() do
if line1 > 1 and line1 < #doc().lines then
table.insert(new_cursors, { line1 + direction, col1 })
end
end
for i,v in ipairs(new_cursors) do doc():add_selection(v[1], v[2]) end
end
local commands = {
["doc:undo"] = function()
doc():undo()
@ -57,65 +86,66 @@ local commands = {
end,
["doc:cut"] = function()
if doc():has_selection() then
local text = doc():get_text(doc():get_selection())
system.set_clipboard(text)
doc():delete_to(0)
end
cut_or_copy(true)
end,
["doc:copy"] = function()
if doc():has_selection() then
local text = doc():get_text(doc():get_selection())
system.set_clipboard(text)
end
cut_or_copy(false)
end,
["doc:paste"] = function()
doc():text_input(system.get_clipboard():gsub("\r", ""))
for idx, line1, col1, line2, col2 in doc():get_selections() do
local value = doc().cursor_clipboard[idx] or system.get_clipboard()
doc():text_input(value:gsub("\r", ""), idx)
end
end,
["doc:newline"] = function()
local line, col = doc():get_selection()
local indent = doc().lines[line]:match("^[\t ]*")
if col <= #indent then
indent = indent:sub(#indent + 2 - col)
for idx, line, col in doc():get_selections(false, true) do
local indent = doc().lines[line]:match("^[\t ]*")
if col <= #indent then
indent = indent:sub(#indent + 2 - col)
end
doc():text_input("\n" .. indent, idx)
end
doc():text_input("\n" .. indent)
end,
["doc:newline-below"] = function()
local line = doc():get_selection()
local indent = doc().lines[line]:match("^[\t ]*")
doc():insert(line, math.huge, "\n" .. indent)
doc():set_selection(line + 1, math.huge)
for idx, line in doc():get_selections(false, true) do
local indent = doc().lines[line]:match("^[\t ]*")
doc():insert(line, math.huge, "\n" .. indent)
doc():set_selections(idx, line + 1, math.huge)
end
end,
["doc:newline-above"] = function()
local line = doc():get_selection()
local indent = doc().lines[line]:match("^[\t ]*")
doc():insert(line, 1, indent .. "\n")
doc():set_selection(line, math.huge)
for idx, line in doc():get_selections(false, true) do
local indent = doc().lines[line]:match("^[\t ]*")
doc():insert(line, 1, indent .. "\n")
doc():set_selections(idx, line, math.huge)
end
end,
["doc:delete"] = function()
local line, col = doc():get_selection()
if not doc():has_selection() and doc().lines[line]:find("^%s*$", col) then
doc():remove(line, col, line, math.huge)
for idx, line1, col1, line2, col2 in doc():get_selections() do
if line1 == line2 and col1 == col2 and doc().lines[line1]:find("^%s*$", col1) then
doc():remove(line1, col1, line1, math.huge)
end
doc():delete_to_cursor(idx, translate.next_char)
end
doc():delete_to(translate.next_char)
end,
["doc:backspace"] = function()
local line, col = doc():get_selection()
if not doc():has_selection() then
local text = doc():get_text(line, 1, line, col)
if #text >= config.indent_size and text:find("^ *$") then
doc():delete_to(0, -config.indent_size)
return
for idx, line1, col1, line2, col2 in doc():get_selections() do
if line1 == line2 and col1 == col2 then
local text = doc():get_text(line1, 1, line1, col1)
if #text >= config.indent_size and text:find("^ *$") then
doc():delete_to_cursor(idx, 0, -config.indent_size)
return
end
end
doc():delete_to_cursor(idx, translate.previous_char)
end
doc():delete_to(translate.previous_char)
end,
["doc:select-all"] = function()
@ -126,77 +156,104 @@ local commands = {
local line, col = doc():get_selection()
doc():set_selection(line, col)
end,
["doc:indent"] = function()
for idx, line1, col1, line2, col2 in doc_multiline_selections(true) do
local l1, c1, l2, c2 = doc():indent_text(false, line1, col1, line2, col2)
if l1 then
doc():set_selections(idx, l1, c1, l2, c2)
end
end
end,
["doc:select-lines"] = function()
local line1, _, line2, _, swap = doc():get_selection(true)
append_line_if_last_line(line2)
doc():set_selection(line1, 1, line2 + 1, 1, swap)
for idx, line1, _, line2 in doc():get_selections(true) do
append_line_if_last_line(line2)
doc():set_selections(idx, line1, 1, line2 + 1, 1, swap)
end
end,
["doc:select-word"] = function()
local line1, col1 = doc():get_selection(true)
local line1, col1 = translate.start_of_word(doc(), line1, col1)
local line2, col2 = translate.end_of_word(doc(), line1, col1)
doc():set_selection(line2, col2, line1, col1)
for idx, line1, col1 in doc():get_selections(true) do
local line1, col1 = translate.start_of_word(doc(), line1, col1)
local line2, col2 = translate.end_of_word(doc(), line1, col1)
doc():set_selections(idx, line2, col2, line1, col1)
end
end,
["doc:join-lines"] = function()
local line1, _, line2 = doc():get_selection(true)
if line1 == line2 then line2 = line2 + 1 end
local text = doc():get_text(line1, 1, line2, math.huge)
text = text:gsub("(.-)\n[\t ]*", function(x)
return x:find("^%s*$") and x or x .. " "
end)
doc():insert(line1, 1, text)
doc():remove(line1, #text + 1, line2, math.huge)
if doc():has_selection() then
doc():set_selection(line1, math.huge)
for idx, line1, col1, line2, col2 in doc():get_selections(true) do
if line1 == line2 then line2 = line2 + 1 end
local text = doc():get_text(line1, 1, line2, math.huge)
text = text:gsub("(.-)\n[\t ]*", function(x)
return x:find("^%s*$") and x or x .. " "
end)
doc():insert(line1, 1, text)
doc():remove(line1, #text + 1, line2, math.huge)
if line1 ~= line2 or col1 ~= col2 then
doc():set_selections(idx, line1, math.huge)
end
end
end,
["doc:indent"] = function()
doc():indent_text(false, doc_multiline_selection(true))
for idx, line1, col1, line2, col2 in doc_multiline_selections(true) do
local l1, c1, l2, c2 = doc():indent_text(false, line1, col1, line2, col2)
if l1 then
doc():set_selections(idx, l1, c1, l2, c2)
end
end
end,
["doc:unindent"] = function()
doc():indent_text(true, doc_multiline_selection(true))
for idx, line1, col1, line2, col2 in doc_multiline_selections(true) do
local l1, c1, l2, c2 = doc():indent_text(true, line1, col1, line2, col2)
if l1 then
doc():set_selections(idx, l1, c1, l2, c2)
end
end
end,
["doc:duplicate-lines"] = function()
local line1, col1, line2, col2, swap = doc_multiline_selection(true)
append_line_if_last_line(line2)
local text = doc():get_text(line1, 1, line2 + 1, 1)
doc():insert(line2 + 1, 1, text)
local n = line2 - line1 + 1
doc():set_selection(line1 + n, col1, line2 + n, col2, swap)
for idx, line1, col1, line2, col2 in doc_multiline_selections(true) do
append_line_if_last_line(line2)
local text = doc():get_text(line1, 1, line2 + 1, 1)
doc():insert(line2 + 1, 1, text)
local n = line2 - line1 + 1
doc():set_selections(idx, line1 + n, col1, line2 + n, col2, swap)
end
end,
["doc:delete-lines"] = function()
local line1, col1, line2 = doc_multiline_selection(true)
append_line_if_last_line(line2)
doc():remove(line1, 1, line2 + 1, 1)
doc():set_selection(line1, col1)
for idx, line1, col1, line2, col2 in doc_multiline_selections(true) do
append_line_if_last_line(line2)
doc():remove(line1, 1, line2 + 1, 1)
doc():set_selections(idx, line1, col1)
end
end,
["doc:move-lines-up"] = function()
local line1, col1, line2, col2, swap = doc_multiline_selection(true)
append_line_if_last_line(line2)
if line1 > 1 then
local text = doc().lines[line1 - 1]
doc():insert(line2 + 1, 1, text)
doc():remove(line1 - 1, 1, line1, 1)
doc():set_selection(line1 - 1, col1, line2 - 1, col2, swap)
for idx, line1, col1, line2, col2 in doc_multiline_selections(true) do
append_line_if_last_line(line2)
if line1 > 1 then
local text = doc().lines[line1 - 1]
doc():insert(line2 + 1, 1, text)
doc():remove(line1 - 1, 1, line1, 1)
doc():set_selections(idx, line1 - 1, col1, line2 - 1, col2)
end
end
end,
["doc:move-lines-down"] = function()
local line1, col1, line2, col2, swap = doc_multiline_selection(true)
append_line_if_last_line(line2 + 1)
if line2 < #doc().lines then
local text = doc().lines[line2 + 1]
doc():remove(line2 + 1, 1, line2 + 2, 1)
doc():insert(line1, 1, text)
doc():set_selection(line1 + 1, col1, line2 + 1, col2, swap)
for idx, line1, col1, line2, col2 in doc_multiline_selections(true) do
append_line_if_last_line(line2 + 1)
if line2 < #doc().lines then
local text = doc().lines[line2 + 1]
doc():remove(line2 + 1, 1, line2 + 2, 1)
doc():insert(line1, 1, text)
doc():set_selections(idx, line1 + 1, col1, line2 + 1, col2)
end
end
end,
@ -205,28 +262,29 @@ local commands = {
if not comment then return end
local indentation = get_indent_string()
local comment_text = comment .. " "
local line1, _, line2 = doc_multiline_selection(true)
local uncomment = true
local start_offset = math.huge
for line = line1, line2 do
local text = doc().lines[line]
local s = text:find("%S")
local cs, ce = text:find(comment_text, s, true)
if s and cs ~= s then
uncomment = false
start_offset = math.min(start_offset, s)
end
end
for line = line1, line2 do
local text = doc().lines[line]
local s = text:find("%S")
if uncomment then
for idx, line1, _, line2 in doc_multiline_selections(true) do
local uncomment = true
local start_offset = math.huge
for line = line1, line2 do
local text = doc().lines[line]
local s = text:find("%S")
local cs, ce = text:find(comment_text, s, true)
if ce then
doc():remove(line, cs, line, ce + 1)
if s and cs ~= s then
uncomment = false
start_offset = math.min(start_offset, s)
end
end
for line = line1, line2 do
local text = doc().lines[line]
local s = text:find("%S")
if uncomment then
local cs, ce = text:find(comment_text, s, true)
if ce then
doc():remove(line, cs, line, ce + 1)
end
elseif s then
doc():insert(line, start_offset, comment_text)
end
elseif s then
doc():insert(line, start_offset, comment_text)
end
end
end,
@ -326,7 +384,18 @@ local commands = {
end
os.remove(filename)
core.log("Removed \"%s\"", filename)
end,
["doc:create-cursor-previous-line"] = function()
split_cursor(-1)
doc():merge_cursors()
end,
["doc:create-cursor-next-line"] = function()
split_cursor(1)
doc():merge_cursors()
end
}
@ -356,21 +425,21 @@ for name, fn in pairs(translations) do
end
commands["doc:move-to-previous-char"] = function()
if doc():has_selection() then
local line, col = doc():get_selection(true)
doc():set_selection(line, col)
else
doc():move_to(translate.previous_char)
for idx, line1, col1, line2, col2 in doc():get_selections(true) do
if line1 ~= line2 or col1 ~= col2 then
doc():set_selections(idx, line1, col1)
end
end
doc():move_to(translate.previous_char)
end
commands["doc:move-to-next-char"] = function()
if doc():has_selection() then
local _, _, line, col = doc():get_selection(true)
doc():set_selection(line, col)
else
doc():move_to(translate.next_char)
for idx, line1, col1, line2, col2 in doc():get_selections(true) do
if line1 ~= line2 or col1 ~= col2 then
doc():set_selections(idx, line2, col2)
end
end
doc():move_to(translate.next_char)
end
command.add("core.docview", commands)

20
data/core/common.lua
View File

@ -61,6 +61,26 @@ function common.color(str)
end
function common.splice(t, at, remove, insert)
insert = insert or {}
local offset = #insert - remove
local old_len = #t
if offset < 0 then
for i = at - offset, old_len - offset do
t[i + offset] = t[i]
end
elseif offset > 0 then
for i = old_len, at, -1 do
t[i + offset] = t[i]
end
end
for i, item in ipairs(insert) do
t[at + i - 1] = item
end
end
local function compare_score(a, b)
return a.score > b.score
end

203
data/core/doc/init.lua
View File

@ -16,26 +16,6 @@ local function split_lines(text)
return res
end
local function splice(t, at, remove, insert)
insert = insert or {}
local offset = #insert - remove
local old_len = #t
if offset < 0 then
for i = at - offset, old_len - offset do
t[i + offset] = t[i]
end
elseif offset > 0 then
for i = old_len, at, -1 do
t[i + offset] = t[i]
end
end
for i, item in ipairs(insert) do
t[at + i - 1] = item
end
end
function Doc:new(filename)
self:reset()
if filename then
@ -46,7 +26,8 @@ end
function Doc:reset()
self.lines = { "\n" }
self.selection = { a = { line=1, col=1 }, b = { line=1, col=1 } }
self.selections = { 1, 1, 1, 1 }
self.cursor_clipboard = {}
self.undo_stack = { idx = 1 }
self.redo_stack = { idx = 1 }
self.clean_change_id = 1
@ -126,45 +107,87 @@ function Doc:get_change_id()
return self.undo_stack.idx
end
-- Cursor section. Cursor indices are *only* valid during a get_selections() call.
-- Cursors will always be iterated in order from top to bottom. Through normal operation
-- curors can never swap positions; only merge or split, or change their position in cursor
-- order.
function Doc:get_selection(sort)
local idx, line1, col1, line2, col2 = self:get_selections(sort)({ self.selections, sort }, 0)
return line1, col1, line2, col2, sort
end
function Doc:set_selection(line1, col1, line2, col2, swap)
assert(not line2 == not col2, "expected 2 or 4 arguments")
function Doc:has_selection()
local line1, col1, line2, col2 = self:get_selection(false)
return line1 ~= line2 or col1 ~= col2
end
function Doc:sanitize_selection()
for idx, line1, col1, line2, col2 in self:get_selections() do
self:set_selections(idx, line1, col1, line2, col2)
end
end
local function sort_positions(line1, col1, line2, col2)
if line1 > line2 or line1 == line2 and col1 > col2 then
return line2, col2, line1, col1
end
return line1, col1, line2, col2
end
function Doc:set_selections(idx, line1, col1, line2, col2, swap, rm)
assert(not line2 == not col2, "expected 3 or 5 arguments")
if swap then line1, col1, line2, col2 = line2, col2, line1, col1 end
line1, col1 = self:sanitize_position(line1, col1)
line2, col2 = self:sanitize_position(line2 or line1, col2 or col1)
self.selection.a.line, self.selection.a.col = line1, col1
self.selection.b.line, self.selection.b.col = line2, col2
common.splice(self.selections, (idx - 1)*4 + 1, rm == nil and 4 or rm, { line1, col1, line2, col2 })
end
local function sort_positions(line1, col1, line2, col2)
if line1 > line2
or line1 == line2 and col1 > col2 then
return line2, col2, line1, col1, true
function Doc:add_selection(line1, col1, line2, col2, swap)
local l1, c1 = sort_positions(line1, col1, line2 or line1, col2 or col1)
local target = #self.selections / 4 + 1
for idx, tl1, tc1 in self:get_selections(true) do
if l1 < tl1 or l1 == tl1 and c1 < tc1 then
target = idx
break
end
end
return line1, col1, line2, col2, false
self:set_selections(target, line1, col1, line2, col2, swap, 0)
end
function Doc:set_selection(line1, col1, line2, col2, swap)
self.selections, self.cursor_clipboard = {}, {}
self:set_selections(1, line1, col1, line2, col2, swap)
end
function Doc:get_selection(sort)
local a, b = self.selection.a, self.selection.b
if sort then
return sort_positions(a.line, a.col, b.line, b.col)
function Doc:merge_cursors(idx)
for i = (idx or (#self.selections - 3)), (idx or 5), -4 do
for j = 1, i - 4, 4 do
if self.selections[i] == self.selections[j] and
self.selections[i+1] == self.selections[j+1] then
common.splice(self.selections, i, 4)
break
end
end
end
return a.line, a.col, b.line, b.col
end
function Doc:has_selection()
local a, b = self.selection.a, self.selection.b
return not (a.line == b.line and a.col == b.col)
local function selection_iterator(invariant, idx)
local target = invariant[3] and (idx*4 - 7) or (idx*4 + 1)
if target > #invariant[1] or target <= 0 or (type(invariant[3]) == "number" and invariant[3] ~= idx - 1) then return end
if invariant[2] then
return idx+(invariant[3] and -1 or 1), sort_positions(unpack(invariant[1], target, target+4))
else
return idx+(invariant[3] and -1 or 1), unpack(invariant[1], target, target+4)
end
end
function Doc:sanitize_selection()
self:set_selection(self:get_selection())
-- If idx_reverse is true, it'll reverse iterate. If nil, or false, regular iterate.
-- If a number, runs for exactly that iteration.
function Doc:get_selections(sort_intra, idx_reverse)
return selection_iterator, { self.selections, sort_intra, idx_reverse },
idx_reverse == true and ((#self.selections / 4) + 1) or ((idx_reverse or -1)+1)
end
-- End of cursor seciton.
function Doc:sanitize_position(line, col)
line = common.clamp(line, 1, #self.lines)
@ -251,14 +274,11 @@ local function pop_undo(self, undo_stack, redo_stack, modified)
if cmd.type == "insert" then
local line, col, text = table.unpack(cmd)
self:raw_insert(line, col, text, redo_stack, cmd.time)
elseif cmd.type == "remove" then
local line1, col1, line2, col2 = table.unpack(cmd)
self:raw_remove(line1, col1, line2, col2, redo_stack, cmd.time)
elseif cmd.type == "selection" then
self.selection.a.line, self.selection.a.col = cmd[1], cmd[2]
self.selection.b.line, self.selection.b.col = cmd[3], cmd[4]
self.selections = { unpack(cmd) }
end
modified = modified or (cmd.type ~= "selection")
@ -288,11 +308,11 @@ function Doc:raw_insert(line, col, text, undo_stack, time)
lines[#lines] = lines[#lines] .. after
-- splice lines into line array
splice(self.lines, line, 1, lines)
common.splice(self.lines, line, 1, lines)
-- push undo
local line2, col2 = self:position_offset(line, col, #text)
push_undo(undo_stack, time, "selection", self:get_selection())
push_undo(undo_stack, time, "selection", unpack(self.selections))
push_undo(undo_stack, time, "remove", line, col, line2, col2)
-- update highlighter and assure selection is in bounds
@ -304,7 +324,7 @@ end
function Doc:raw_remove(line1, col1, line2, col2, undo_stack, time)
-- push undo
local text = self:get_text(line1, col1, line2, col2)
push_undo(undo_stack, time, "selection", self:get_selection())
push_undo(undo_stack, time, "selection", unpack(self.selections))
push_undo(undo_stack, time, "insert", line1, col1, text)
-- get line content before/after removed text
@ -312,7 +332,7 @@ function Doc:raw_remove(line1, col1, line2, col2, undo_stack, time)
local after = self.lines[line2]:sub(col2)
-- splice line into line array
splice(self.lines, line1, line2 - line1 + 1, { before .. after })
common.splice(self.lines, line1, line2 - line1 + 1, { before .. after })
-- update highlighter and assure selection is in bounds
self.highlighter:invalidate(line1)
@ -348,22 +368,20 @@ function Doc:redo()
end
function Doc:text_input(text)
if self:has_selection() then
self:delete_to()
function Doc:text_input(text, idx)
for sidx, line1, col1, line2, col2 in self:get_selections(true, idx) do
if line1 ~= line2 or col1 ~= col2 then
self:delete_to_cursor(sidx)
end
self:insert(line1, col1, text)
self:move_to_cursor(sidx, #text)
end
local line, col = self:get_selection()
self:insert(line, col, text)
self:move_to(#text)
end
function Doc:replace(fn)
local line1, col1, line2, col2, swap
local had_selection = self:has_selection()
if had_selection then
line1, col1, line2, col2, swap = self:get_selection(true)
else
local line1, col1, line2, col2 = self:get_selection(true)
if line1 == line2 and col1 == col2 then
line1, col1, line2, col2 = 1, 1, #self.lines, #self.lines[#self.lines]
end
local old_text = self:get_text(line1, col1, line2, col2)
@ -371,39 +389,47 @@ function Doc:replace(fn)
if old_text ~= new_text then
self:insert(line2, col2, new_text)
self:remove(line1, col1, line2, col2)
if had_selection then
if line1 == line2 and col1 == col2 then
line2, col2 = self:position_offset(line1, col1, #new_text)
self:set_selection(line1, col1, line2, col2, swap)
self:set_selection(line1, col1, line2, col2)
end
end
return n
end
function Doc:delete_to(...)
local line, col = self:get_selection(true)
if self:has_selection() then
self:remove(self:get_selection())
else
local line2, col2 = self:position_offset(line, col, ...)
self:remove(line, col, line2, col2)
line, col = sort_positions(line, col, line2, col2)
function Doc:delete_to_cursor(idx, ...)
for sidx, line1, col1, line2, col2 in self:get_selections(true, idx) do
if line1 ~= line2 or col1 ~= col2 then
self:remove(line1, col1, line2, col2)
else
local l2, c2 = self:position_offset(line1, col1, ...)
self:remove(line1, col1, l2, c2)
line1, col1 = sort_positions(line1, col1, l2, c2)
end
self:set_selections(sidx, line1, col1)
end
self:set_selection(line, col)
self:merge_cursors(idx)
end
function Doc:delete_to(...) return self:delete_to_cursor(nil, ...) end
function Doc:move_to(...)
local line, col = self:get_selection()
self:set_selection(self:position_offset(line, col, ...))
function Doc:move_to_cursor(idx, ...)
for sidx, line, col in self:get_selections(false, idx) do
self:set_selections(sidx, self:position_offset(line, col, ...))
end
self:merge_cursors(idx)
end
function Doc:move_to(...) return self:move_to_cursor(nil, ...) end
function Doc:select_to(...)
local line, col, line2, col2 = self:get_selection()
line, col = self:position_offset(line, col, ...)
self:set_selection(line, col, line2, col2)
function Doc:select_to_cursor(idx, ...)
for sidx, line, col, line2, col2 in self:get_selections(false, idx) do
line, col = self:position_offset(line, col, ...)
self:set_selections(sidx, line, col, line2, col2)
end
self:merge_cursors(idx)
end
function Doc:select_to(...) return self:select_to_cursor(nil, ...) end
local function get_indent_string()
@ -439,7 +465,7 @@ end
-- inserts the appropriate whitespace, as if you typed them normally.
-- * if you are unindenting, the cursor will jump to the start of the line,
-- and remove the appropriate amount of spaces (or a tab).
function Doc:indent_text(unindent, line1, col1, line2, col2, swap)
function Doc:indent_text(unindent, line1, col1, line2, col2)
local text = get_indent_string()
local _, se = self.lines[line1]:find("^[ \t]+")
local in_beginning_whitespace = col1 == 1 or (se and col1 <= se + 1)
@ -453,15 +479,14 @@ function Doc:indent_text(unindent, line1, col1, line2, col2, swap)
unindent and rnded:sub(1, #rnded - #text) or rnded .. text)
end
l1d, l2d = #self.lines[line1] - l1d, #self.lines[line2] - l2d
if (unindent or in_beginning_whitespace) and not self:has_selection() then
if (unindent or in_beginning_whitespace) and not has_selection then
local start_cursor = (se and se + 1 or 1) + l1d or #(self.lines[line1])
self:set_selection(line1, start_cursor, line2, start_cursor, swap)
else
self:set_selection(line1, col1 + l1d, line2, col2 + l2d, swap)
return line1, start_cursor, line2, start_cursor
end
else
self:text_input(text)
return line1, col1 + l1d, line2, col2 + l2d
end
self:insert(line1, col1, text)
return line1, col1 + #text, line1, col1 + #text
end
-- For plugins to add custom actions of document change

72
data/core/docview.lua
View File

@ -256,7 +256,11 @@ function DocView:on_mouse_pressed(button, x, y, clicks)
end
else
local line, col = self:resolve_screen_position(x, y)
self.doc:set_selection(mouse_selection(self.doc, clicks, line, col, line, col))
if keymap.modkeys["ctrl"] then
self.doc:add_selection(mouse_selection(self.doc, clicks, line, col, line, col))
else
self.doc:set_selection(mouse_selection(self.doc, clicks, line, col, line, col))
end
self.mouse_selecting = { line, col, clicks = clicks }
end
core.blink_reset()
@ -276,7 +280,15 @@ function DocView:on_mouse_moved(x, y, ...)
local l1, c1 = self:resolve_screen_position(x, y)
local l2, c2 = table.unpack(self.mouse_selecting)
local clicks = self.mouse_selecting.clicks
self.doc:set_selection(mouse_selection(self.doc, clicks, l1, c1, l2, c2))
if keymap.modkeys["ctrl"] then
if l1 > l2 then l1, l2 = l2, l1 end
self.doc.selections = { }
for i = l1, l2 do
self.doc:set_selections(i - l1 + 1, i, math.min(c1, #self.doc.lines[i]), i, math.min(c2, #self.doc.lines[i]))
end
else
self.doc:set_selection(mouse_selection(self.doc, clicks, l1, c1, l2, c2))
end
end
end
@ -340,46 +352,50 @@ end
function DocView:draw_line_body(idx, x, y)
local line, col = self.doc:get_selection()
-- draw selection if it overlaps this line
local line1, col1, line2, col2 = self.doc:get_selection(true)
if idx >= line1 and idx <= line2 then
local text = self.doc.lines[idx]
if line1 ~= idx then col1 = 1 end
if line2 ~= idx then col2 = #text + 1 end
local x1 = x + self:get_col_x_offset(idx, col1)
local x2 = x + self:get_col_x_offset(idx, col2)
local lh = self:get_line_height()
renderer.draw_rect(x1, y, x2 - x1, lh, style.selection)
for lidx, line1, col1, line2, col2 in self.doc:get_selections(true) do
if idx >= line1 and idx <= line2 then
local text = self.doc.lines[idx]
if line1 ~= idx then col1 = 1 end
if line2 ~= idx then col2 = #text + 1 end
local x1 = x + self:get_col_x_offset(idx, col1)
local x2 = x + self:get_col_x_offset(idx, col2)
local lh = self:get_line_height()
renderer.draw_rect(x1, y, x2 - x1, lh, style.selection)
end
end
-- draw line highlight if caret is on this line
if config.highlight_current_line and not self.doc:has_selection()
and line == idx and core.active_view == self then
self:draw_line_highlight(x + self.scroll.x, y)
for lidx, line1, col1, line2, col2 in self.doc:get_selections(true) do
-- draw line highlight if caret is on this line
if config.highlight_current_line and (line1 == line2 and col1 == col2)
and line1 == idx and core.active_view == self then
self:draw_line_highlight(x + self.scroll.x, y)
end
end
-- draw line's text
self:draw_line_text(idx, x, y)
-- draw caret if it overlaps this line
local T = config.blink_period
if line == idx and core.active_view == self
and (core.blink_timer - core.blink_start) % T < T / 2
and system.window_has_focus() then
local lh = self:get_line_height()
local x1 = x + self:get_col_x_offset(line, col)
renderer.draw_rect(x1, y, style.caret_width, lh, style.caret)
for _, line, col in self.doc:get_selections() do
if line == idx and core.active_view == self
and (core.blink_timer - core.blink_start) % T < T / 2
and system.window_has_focus() then
local lh = self:get_line_height()
local x1 = x + self:get_col_x_offset(line, col)
renderer.draw_rect(x1, y, style.caret_width, lh, style.caret)
end
end
end
function DocView:draw_line_gutter(idx, x, y)
local color = style.line_number
local line1, _, line2, _ = self.doc:get_selection(true)
if idx >= line1 and idx <= line2 then
color = style.line_number2
for _, line1, _, line2 in self.doc:get_selections(true) do
if idx >= line1 and idx <= line2 then
color = style.line_number2
break
end
end
local yoffset = self:get_line_text_y_offset()
x = x + style.padding.x

2
data/core/keymap-macos.lua
View File

@ -101,6 +101,8 @@ local function keymap_macos(keymap)
["cmd+shift+end"] = "doc:select-to-end-of-doc",
["shift+pageup"] = "doc:select-to-previous-page",
["shift+pagedown"] = "doc:select-to-next-page",
["cmd+shift+up"] = "doc:create-cursor-previous-line",
["cmd+shift+down"] = "doc:create-cursor-next-line"
}
end

2
data/core/keymap.lua
View File

@ -202,6 +202,8 @@ keymap.add_direct {
["ctrl+shift+end"] = "doc:select-to-end-of-doc",
["shift+pageup"] = "doc:select-to-previous-page",
["shift+pagedown"] = "doc:select-to-next-page",
["ctrl+shift+up"] = "doc:create-cursor-previous-line",
["ctrl+shift+down"] = "doc:create-cursor-next-line"
}
return keymap