move
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text.lua
56
text.lua
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@ -82,6 +82,34 @@ function Text.draw_cursor(State, x, y)
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State.cursor_y = y+State.line_height
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end
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function Text.populate_screen_line_starting_pos(State, line_index)
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local line = State.lines[line_index]
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if line.mode ~= 'text' then return end
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local line_cache = State.line_cache[line_index]
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if line_cache.screen_line_starting_pos then
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return
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end
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-- duplicate some logic from Text.draw
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if line_cache.fragments == nil then
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Text.compute_fragments(State, line_index)
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end
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line_cache.screen_line_starting_pos = {1}
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local x = State.left
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local pos = 1
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for _, f in ipairs(line_cache.fragments) do
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local frag, frag_text = f.data, f.text
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-- render fragment
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local frag_width = App.width(frag_text)
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if x + frag_width > State.right then
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x = State.left
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table.insert(line_cache.screen_line_starting_pos, pos)
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end
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x = x + frag_width
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local frag_len = utf8.len(frag)
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pos = pos + frag_len
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end
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end
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function Text.compute_fragments(State, line_index)
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--? print('compute_fragments', line_index, 'between', State.left, State.right)
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local line = State.lines[line_index]
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@ -914,34 +942,6 @@ function Text.previous_screen_line(State, loc2)
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end
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end
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function Text.populate_screen_line_starting_pos(State, line_index)
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local line = State.lines[line_index]
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if line.mode ~= 'text' then return end
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local line_cache = State.line_cache[line_index]
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if line_cache.screen_line_starting_pos then
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return
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end
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-- duplicate some logic from Text.draw
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if line_cache.fragments == nil then
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Text.compute_fragments(State, line_index)
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end
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line_cache.screen_line_starting_pos = {1}
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local x = State.left
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local pos = 1
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for _, f in ipairs(line_cache.fragments) do
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local frag, frag_text = f.data, f.text
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-- render fragment
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local frag_width = App.width(frag_text)
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if x + frag_width > State.right then
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x = State.left
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table.insert(line_cache.screen_line_starting_pos, pos)
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end
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x = x + frag_width
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local frag_len = utf8.len(frag)
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pos = pos + frag_len
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end
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end
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-- resize helper
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function Text.tweak_screen_top_and_cursor(State)
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--? print('a', State.selection1.line)
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