forked from mia/Aegisub
Fix calls to other util functions from within util functions
This commit is contained in:
Thomas Goyne
parent
9bcc6efcc8
commit
1b96bf748f
2 changed files with 406 additions and 369 deletions
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@ -1,5 +1,6 @@
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local utils = {
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copy = function(tbl)
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local sformat = string.format
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local copy
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copy = function(tbl)
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return (function()
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local _tbl_0 = { }
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for k, v in pairs(tbl) do
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@ -7,10 +8,10 @@ local utils = {
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end
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return _tbl_0
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end)()
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end,
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deep_copy = function(tbl)
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end
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local deep_copy
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deep_copy = function(tbl)
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local seen = { }
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local copy
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copy = function(val)
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if type(tbl) ~= 'table' then
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return val
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@ -28,17 +29,21 @@ local utils = {
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end)()
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end
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return copy(tbl)
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end,
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ass_color = function(r, g, b)
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return string.format("&H%02X%02X%02X&", b, g, r)
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end,
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ass_alpha = function(a)
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return string.format("&H%02X&", a)
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end,
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ass_style_color = function(r, g, b, a)
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return string.format("&H%02X%02X%02X%02X", a, b, g, r)
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end,
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extract_color = function(s)
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end
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local ass_color
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ass_color = function(r, g, b)
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return sformat("&H%02X%02X%02X&", b, g, r)
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end
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local ass_alpha
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ass_alpha = function(a)
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return sformat("&H%02X&", a)
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end
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local ass_style_color
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ass_style_color = function(r, g, b, a)
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return sformat("&H%02X%02X%02X%02X", a, b, g, r)
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end
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local extract_color
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extract_color = function(s)
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local a, b, g, r
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a, b, g, r = s:match('&H(%x%x)(%x%x)(%x%x)(%x%x)')
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if a then
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@ -56,15 +61,18 @@ local utils = {
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if r then
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return tonumber(r, 16), tonumber(g, 16) or 0, tonumber(b, 16) or 0, tonumber(a, 16) or 0
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end
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end,
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alpha_from_style = function(scolor)
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end
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local alpha_from_style
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alpha_from_style = function(scolor)
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return ass_alpha(select(4, extract_color(scolor)))
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end,
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color_from_style = function(scolor)
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end
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local color_from_style
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color_from_style = function(scolor)
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local r, g, b = extract_color(scolor)
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return ass_color(r or 0, g or 0, b or 0)
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end,
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HSV_to_RGB = function(H, S, V)
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end
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local HSV_to_RGB
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HSV_to_RGB = function(H, S, V)
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local r, g, b = 0, 0, 0
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if S == 0 then
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r = self:clamp(V * 255, 0, 255)
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@ -106,8 +114,9 @@ local utils = {
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end
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end
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return r, g, b
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end,
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HSL_to_RGB = function(H, S, L)
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end
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local HSL_to_RGB
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HSL_to_RGB = function(H, S, L)
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local r, g, b
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H = math.abs(H) % 360
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S = clamp(S, 0, 1)
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@ -156,29 +165,33 @@ local utils = {
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b = get_component(Tb)
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end
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return math.floor(r * 255 + 0.5), math.floor(g * 255 + 0.5), math.floor(b * 255 + 0.5)
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end,
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trim = function(s)
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end
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local trim
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trim = function(s)
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return s:gsub('^%s*(.-)%s*$', '%1')
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end,
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headtail = function(s)
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end
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local headtail
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headtail = function(s)
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local a, b, head, tail = s:find('(.-)%s+(.*)')
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if a then
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return head, tail
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else
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return s, ''
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end
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end,
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words = function(s)
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end
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local words
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words = function(s)
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return function()
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if s == '' then
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return
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end
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local head, tail = string.headtail(s)
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local head, tail = headtail(s)
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s = tail
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return head
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end
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end,
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clamp = function(val, min, max)
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end
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local clamp
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clamp = function(val, min, max)
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if val < min then
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return min
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elseif val > max then
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@ -186,8 +199,9 @@ local utils = {
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else
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return val
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end
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end,
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interpolate = function(pct, min, max)
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end
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local interpolate
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interpolate = function(pct, min, max)
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if pct <= 0 then
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return min
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elseif pct >= 1 then
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@ -195,15 +209,34 @@ local utils = {
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else
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return pct * (max - min) + min
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end
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end,
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interpolate_color = function(pct, first, last)
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end
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local interpolate_color
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interpolate_color = function(pct, first, last)
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local r1, g1, b1 = extract_color(first)
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local r2, g2, b2 = extract_color(last)
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local r, g, b = interpolate(pct, r1, r2), interpolate(pct, g1, g2), interpolate(pct, b1, b2)
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return ass_color(r, g, b)
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end,
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interpolate_alpha = function(pct, first, last)
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end
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local interpolate_alpha
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interpolate_alpha = function(pct, first, last)
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return ass_alpha(interpolate(pct, select(4, extract_color(first)), select(4, extract_color(last))))
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end
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end
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return {
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copy = copy,
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deep_copy = deep_copy,
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ass_color = ass_color,
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ass_alpha = ass_alpha,
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ass_style_color = ass_style_color,
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extract_color = extract_color,
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alpha_from_style = alpha_from_style,
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color_from_style = color_from_style,
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HSV_to_RGB = HSV_to_RGB,
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HSL_to_RGB = HSL_to_RGB,
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trim = trim,
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headtail = headtail,
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words = words,
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clamp = clamp,
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interpolate = interpolate,
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interpolate_color = interpolate_color,
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interpolate_alpha = interpolate_alpha
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}
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return utils
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@ -13,13 +13,14 @@
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-- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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-- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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utils =
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-- Make a shallow copy of a table
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copy: (tbl) -> {k, v for k, v in pairs tbl}
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sformat = string.format
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-- Make a deep copy of a table
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-- Retains equality of table references inside the copy and handles self-referencing structures
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deep_copy: (tbl) ->
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-- Make a shallow copy of a table
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copy = (tbl) -> {k, v for k, v in pairs tbl}
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-- Make a deep copy of a table
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-- Retains equality of table references inside the copy and handles self-referencing structures
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deep_copy = (tbl) ->
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seen = {}
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copy = (val) ->
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return val if type(tbl) != 'table'
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@ -28,15 +29,15 @@ utils =
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{k, copy(v) for k, v in pairs val}
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copy tbl
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-- Generates ASS hexadecimal string from R, G, B integer components, in &HBBGGRR& format
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ass_color: (r, g, b) -> string.format "&H%02X%02X%02X&", b, g, r
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-- Format an alpha-string for \Xa style overrides
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ass_alpha: (a) -> string.format "&H%02X&", a
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-- Format an ABGR string for use in style definitions (these don't end with & either)
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ass_style_color: (r, g, b, a) -> string.format "&H%02X%02X%02X%02X", a, b, g, r
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-- Generates ASS hexadecimal string from R, G, B integer components, in &HBBGGRR& format
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ass_color = (r, g, b) -> sformat "&H%02X%02X%02X&", b, g, r
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-- Format an alpha-string for \Xa style overrides
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ass_alpha = (a) -> sformat "&H%02X&", a
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-- Format an ABGR string for use in style definitions (these don't end with & either)
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ass_style_color = (r, g, b, a) -> sformat "&H%02X%02X%02X%02X", a, b, g, r
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-- Extract colour components of an ASS colour
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extract_color: (s) ->
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-- Extract colour components of an ASS colour
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extract_color = (s) ->
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local a, b, g, r
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-- Try a style first
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@ -59,16 +60,16 @@ utils =
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if r then
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return tonumber(r, 16), tonumber(g, 16) or 0, tonumber(b, 16) or 0, tonumber(a, 16) or 0
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-- Create an alpha override code from a style definition colour code
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alpha_from_style: (scolor) -> ass_alpha select 4, extract_color scolor
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-- Create an alpha override code from a style definition colour code
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alpha_from_style = (scolor) -> ass_alpha select 4, extract_color scolor
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-- Create an colour override code from a style definition colour code
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color_from_style: (scolor) ->
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-- Create an colour override code from a style definition colour code
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color_from_style = (scolor) ->
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r, g, b = extract_color scolor
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ass_color r or 0, g or 0, b or 0
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-- Converts HSV (Hue, Saturation, Value) to RGB
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HSV_to_RGB: (H, S, V) ->
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-- Converts HSV (Hue, Saturation, Value) to RGB
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HSV_to_RGB = (H, S, V) ->
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r, g, b = 0, 0, 0
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-- Saturation is zero, make grey
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@ -117,9 +118,9 @@ utils =
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return r, g, b
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-- Convert HSL (Hue, Saturation, Luminance) to RGB
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-- Contributed by Gundamn
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HSL_to_RGB: (H, S, L) ->
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-- Convert HSL (Hue, Saturation, Luminance) to RGB
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-- Contributed by Gundamn
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HSL_to_RGB = (H, S, L) ->
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local r, g, b
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-- Make sure input is in range
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@ -172,40 +173,43 @@ utils =
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return math.floor(r*255+0.5), math.floor(g*255+0.5), math.floor(b*255+0.5)
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-- Removes spaces at the start and end of string
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trim: (s) -> s\gsub '^%s*(.-)%s*$', '%1'
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-- Removes spaces at the start and end of string
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trim = (s) -> s\gsub '^%s*(.-)%s*$', '%1'
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-- Get the 'head' and 'tail' of a string, treating it as a sequence of words separated by one or more space-characters
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headtail: (s) ->
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-- Get the 'head' and 'tail' of a string, treating it as a sequence of words separated by one or more space-characters
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headtail = (s) ->
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a, b, head, tail = s\find '(.-)%s+(.*)'
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if a then head, tail else s, ''
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-- Iterator function for headtail
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words: (s) -> ->
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-- Iterator function for headtail
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words = (s) -> ->
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return if s == ''
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head, tail = string.headtail s
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head, tail = headtail s
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s = tail
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head
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-- Clamp a number value to a range
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clamp: (val, min, max) ->
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-- Clamp a number value to a range
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clamp = (val, min, max) ->
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if val < min then min elseif val > max then max else val
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-- Interpolate between two numbers
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interpolate: (pct, min, max) ->
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-- Interpolate between two numbers
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interpolate = (pct, min, max) ->
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if pct <= 0 then min elseif pct >= 1 then max else pct * (max - min) + min
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-- Interpolate between two colour values, given in either style definition or style override format
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-- Return in style override format
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interpolate_color: (pct, first, last) ->
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-- Interpolate between two colour values, given in either style definition or style override format
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-- Return in style override format
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interpolate_color = (pct, first, last) ->
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r1, g1, b1 = extract_color first
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r2, g2, b2 = extract_color last
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r, g, b = interpolate(pct, r1, r2), interpolate(pct, g1, g2), interpolate(pct, b1, b2)
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ass_color r, g, b
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-- Interpolate between two alpha values, given either in style override or as part as a style definition colour
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-- Return in style override format
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interpolate_alpha: (pct, first, last) ->
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-- Interpolate between two alpha values, given either in style override or as part as a style definition colour
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-- Return in style override format
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interpolate_alpha = (pct, first, last) ->
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ass_alpha interpolate pct, select(4, extract_color first), select(4, extract_color last)
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utils
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{ :copy, :deep_copy, :ass_color, :ass_alpha, :ass_style_color,
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:extract_color, :alpha_from_style, :color_from_style, :HSV_to_RGB,
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:HSL_to_RGB, :trim, :headtail, :words, :clamp, :interpolate,
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:interpolate_color, :interpolate_alpha }
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