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Abstracted out draw caret, so that the line guide can draw under it. (#287) 

* Abstracted out draw caret, so that the line guide can draw under it.

* Moved caret drawing out to draw_overlay.
This commit is contained in:
Adam 2021-06-20 16:16:35 -04:00 committed by GitHub
parent 559be66e80
commit 2486f253eb
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 29 additions and 22 deletions
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51
data/core/docview.lua
View File

@ -350,10 +350,14 @@ function DocView:draw_line_text(idx, x, y)
end
end
function DocView:draw_caret(x, y)
local lh = self:get_line_height()
renderer.draw_rect(x, y, style.caret_width, lh, style.caret)
end
function DocView:draw_line_body(idx, x, y)
-- draw selection if it overlaps this line
for lidx, line1, col1, line2, col2 in self.doc:get_selections(true) do
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
@ -364,34 +368,22 @@ function DocView:draw_line_body(idx, x, y)
renderer.draw_rect(x1, y, x2 - x1, lh, style.selection)
end
end
for lidx, line1, col1, line2, col2 in self.doc:get_selections(true) do
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
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
for _, line1, _, line2 in self.doc:get_selections(true) do
for _, line1, _, line2 in self.doc:get_selections(true) do
if idx >= line1 and idx <= line2 then
color = style.line_number2
break
@ -403,30 +395,45 @@ function DocView:draw_line_gutter(idx, x, y)
end
function DocView:draw_overlay()
if core.active_view == self then
local minline, maxline = self:get_visible_line_range()
-- draw caret if it overlaps this line
local T = config.blink_period
for _, line, col in self.doc:get_selections() do
if line >= minline and line <= maxline
and (core.blink_timer - core.blink_start) % T < T / 2
and system.window_has_focus() then
local x, y = self:get_line_screen_position(line)
self:draw_caret(x + self:get_col_x_offset(line, col), y)
end
end
end
end
function DocView:draw()
self:draw_background(style.background)
local font = self:get_font()
font:set_tab_size(config.indent_size)
self:get_font():set_tab_size(config.indent_size)
local minline, maxline = self:get_visible_line_range()
local lh = self:get_line_height()
local _, y = self:get_line_screen_position(minline)
local x = self.position.x
local x, y = self:get_line_screen_position(minline)
for i = minline, maxline do
self:draw_line_gutter(i, x, y)
self:draw_line_gutter(i, self.position.x, y)
y = y + lh
end
local x, y = self:get_line_screen_position(minline)
local gw = self:get_gutter_width()
local pos = self.position
x, y = self:get_line_screen_position(minline)
core.push_clip_rect(pos.x + gw, pos.y, self.size.x, self.size.y)
for i = minline, maxline do
self:draw_line_body(i, x, y)
y = y + lh
end
self:draw_overlay()
core.pop_clip_rect()
self:draw_scrollbar()