175 lines
15 KiB
Luau
175 lines
15 KiB
Luau
-- Font pieces: ImFontGlyphRangesBuilder, ImFont:CalcWordWrapPosition() vs TextWrapped(), IsGlyphRangeUnused(),
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-- stb_decompress + Decode85 via AddFontFromMemoryCompressedBase85TTF() (same glyphs/metrics as the raw TTF).
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local G = require(game:GetService("ReplicatedStorage"):WaitForChild("ImGui"))
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local ImGui, ImVec2 = G.ImGui, G.ImVec2
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ImGui.CreateContext(); G.ImGui_ImplRoblox.Init()
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local io = ImGui.GetIO()
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local failed = {}
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local function check(ok, msg) if not ok then table.insert(failed, msg); print("FAIL " .. msg) end end
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-- GlyphRangesBuilder
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local builder = G.ImFontGlyphRangesBuilder()
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builder:AddText("Hello \u{e9}")
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local ranges = G.ImVector()
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builder:BuildRanges(ranges)
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local got = table.concat(table.move(ranges.Data, 1, ranges.Size, 1, {}), ",")
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check(got == "32,32,72,72,101,101,108,108,111,111,233,233,0", "BuildRanges " .. got)
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builder:Clear()
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builder:AddRanges(io.Fonts:GetGlyphRangesDefault())
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builder:AddChar(0x41) -- already in range
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ranges = G.ImVector(); builder:BuildRanges(ranges)
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check(ranges.Size == 3 and ranges.Data[1] == 0x20 and ranges.Data[2] == 0xFF and ranges.Data[3] == 0, "AddRanges default")
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check(builder:GetBit(0x20) and not builder:GetBit(0x1F) and not builder:GetBit(0x100), "GetBit")
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-- stb-compressed + base85 ProggyClean.ttf (generated with an stb_compress-format encoder + binary_to_compressed_c's base85)
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local B85 = ([==[
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Ja1,)N#ic)R;ID*VS*&+Zla]+_.B>,cF#v,_REmh1W@`$0u68%47no%8ONP&<h/2'@*gi'DBGJ(HZ(,)Ls_c)P5@D*TMw%+XfW]+](9>,a@pu,eXPV-iq18.m3io.qKIP/ud*20#'bi0'?BJ19if,=(N^o232;D3
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7Jr%4;cR]4?%4>5C=ku5GUKV6Kn,87O0do7SHDP8Wa%29[#]i9`;=J:dSt+;hlTc;l.6D<pFm%=t_M]=xw.>>&:fu>*RFV?.k'8@2-_o@6E?PA:^v1Bikur-m-VS.qE75/u^nl/#wNM0'90/1+Qgf1/jGG23,))3
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7D``3;]@A4?uwx4C7XY5GO9;6Khpr6O*QS7hPn:ZKe0GMgc>c`Mq&Sn8h?YPLS-JUrBB`WH+,AO,Wm+MTm6fqOR(>PCeG`NqHn@k_;LfUox3creaQ(st)7VZ`5Quc4R>MBmeu:QS(f7eQfi:di++PfiuIoe1#Don
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^w>igqOb1g:-r+DPn?VQ$(_.hbS8GDRI]1pm*m(EM(1DER=L`E2m(GVYq)>G['EYGbKAVHdW]rH0%]4ol2u4Jn>:PJsSUlJ(UFcVwl6MK%53JLTUxLpbwnWH#N#hF@0*K2,4IL2fCd<-gCd<-hCd<-iCd<-jCd<-
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kCd<-lCd<-mCd<-nCd<-@Dd<-ADd<-BDd<-CDd<-DDd<-EJ)X-v0P]'Gt.g2Gt.g2Gt.g2Gt.g2Gt.g2Gt.g2Gt.g2Gt.g2Gt.g2Gt.g2Gt.g2Gt.g2Gt.g2TmOh2Y#oTC$NXVCThmfGY4&>-K*IT-K*IT-K*IT-
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|
K*IT-K*IT-K*IT-K*IT-K*IT-K*IT-K*IT-K*IT-K*IT-K*IT-K*IT-18ZI'Et,gjm,(DPO/(DPO/(DPO/(DPO/(DPO/(DPO/(DPO/(DPO/(DPO/(DPO/(DPO/(DPO/(DPO/(DP+-XlC#m8Atkt>Ns
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]==]):gsub("\n", "")
|
|
|
|
local raw_data, raw_size = G.ImStd.ImFileLoadToMemory("fonts/ProggyClean.ttf", "rb")
|
|
local raw = io.Fonts:AddFontFromMemoryTTF(raw_data, raw_size, 13.0)
|
|
local comp = io.Fonts:AddFontFromMemoryCompressedBase85TTF(B85, 13.0)
|
|
check(comp ~= nil, "AddFontFromMemoryCompressedBase85TTF returned nil")
|
|
local comp_data = comp.Sources.Data[1].FontData
|
|
local same = comp.Sources.Data[1].FontDataSize == raw_size
|
|
for n = 1, raw_size do if not same then break end same = comp_data[n] == raw_data[n] end
|
|
check(same, "decompressed bytes differ from fonts/ProggyClean.ttf")
|
|
|
|
local TEXT = "The quick brown fox jumps over the lazy dog again and again"
|
|
local W = 100
|
|
local f = 0
|
|
game:GetService("RunService").Stepped:Connect(function()
|
|
f += 1
|
|
G.ImGui_ImplRoblox.NewFrame()
|
|
ImGui.NewFrame()
|
|
ImGui.SetNextWindowPos(ImVec2(10, 10)); ImGui.SetNextWindowSize(ImVec2(400, 300))
|
|
ImGui.Begin("Fonts")
|
|
ImGui.PushFont(raw, 13.0)
|
|
ImGui.PushTextWrapPos(ImGui.GetCursorPosX() + W)
|
|
ImGui.TextWrapped(TEXT)
|
|
local wrapped_h = ImGui.GetItemRectSize().y
|
|
ImGui.PopTextWrapPos()
|
|
local line_h = ImGui.GetTextLineHeight()
|
|
ImGui.PopFont()
|
|
if f <= 3 then
|
|
ImGui.PushFont(comp, 13.0)
|
|
ImGui.Text("Hello \u{e9}")
|
|
ImGui.PopFont()
|
|
end
|
|
ImGui.End()
|
|
ImGui.Render(); G.ImGui_ImplRoblox.RenderDrawData(ImGui.GetDrawData())
|
|
|
|
if f == 3 then
|
|
-- CalcWordWrapPosition(): same line breaks as TextWrapped(). ProggyClean 13px = 7px per char -> 14 chars per 100px line
|
|
local te = #TEXT + 1
|
|
local s, lines, breaks = 1, 0, {}
|
|
while s < te do
|
|
local e = raw:CalcWordWrapPosition(13.0, TEXT, s, te, W)
|
|
lines += 1; table.insert(breaks, e)
|
|
s = e
|
|
while s < te and TEXT:sub(s, s) == " " do s += 1 end -- ImTextCalcWordWrapNextLineStart(): skip blanks
|
|
end
|
|
check(breaks[1] == 10, "first wrap after 'The quick': " .. tostring(breaks[1])) -- "The quick" | "brown fox" | ...
|
|
check(TEXT:sub(11, breaks[2] - 1) == "brown fox", "second line '" .. TEXT:sub(11, breaks[2] - 1) .. "'")
|
|
check(wrapped_h == lines * line_h, ("TextWrapped height %s vs %d lines * %s"):format(wrapped_h, lines, line_h))
|
|
|
|
-- Compressed font: same glyphs and metrics as the raw TTF
|
|
local br, bc = raw:GetFontBaked(13.0), comp:GetFontBaked(13.0)
|
|
check(br.Ascent == bc.Ascent and br.Descent == bc.Descent, "ascent/descent")
|
|
for _, c in { 0x48, 0x65, 0x6C, 0xE9, 0x41, 0x7E } do
|
|
local gr, gc = br:FindGlyph(c), bc:FindGlyph(c)
|
|
check(gc.Visible and gc.X1 > gc.X0 and gc.Y1 > gc.Y0, "compressed glyph empty " .. c)
|
|
check(gr.AdvanceX == gc.AdvanceX and gr.X0 == gc.X0 and gr.Y0 == gc.Y0 and gr.X1 == gc.X1 and gr.Y1 == gc.Y1, "glyph metrics " .. c)
|
|
end
|
|
local str = "Hello \u{e9}"
|
|
local sr, sc = raw:CalcTextSizeA(13.0, 1e30, 0, str, 1, #str + 1), comp:CalcTextSizeA(13.0, 1e30, 0, str, 1, #str + 1)
|
|
check(sr.x == sc.x and sr.y == sc.y and sc.x > 0, "CalcTextSizeA")
|
|
check(not comp:IsGlyphRangeUnused(0, 255) and comp:IsGlyphRangeUnused(0x4E00, 0x9FFF), "IsGlyphRangeUnused")
|
|
|
|
-- AddRemapCodepoint(): '$' loads the 'A' glyph (applies to glyphs loaded afterwards: new 20px baked)
|
|
comp:AddRemapCodepoint(0x24, 0x41)
|
|
local b20 = comp:GetFontBaked(20.0)
|
|
local gd, ga = b20:FindGlyph(0x24), raw:GetFontBaked(20.0):FindGlyph(0x41)
|
|
check(gd.X0 == ga.X0 and gd.Y0 == ga.Y0 and gd.X1 == ga.X1 and gd.Y1 == ga.Y1, "AddRemapCodepoint")
|
|
|
|
-- RemoveCustomRect()
|
|
local atlas = io.Fonts
|
|
local id = atlas:AddCustomRect(8, 8)
|
|
check(atlas:GetCustomRect(id, G.ImFontAtlasRect()) == true, "AddCustomRect")
|
|
atlas:RemoveCustomRect(id)
|
|
check(not atlas:GetCustomRect(id, G.ImFontAtlasRect()), "RemoveCustomRect")
|
|
|
|
-- RemoveFont()
|
|
local nfonts, nsrc = atlas.Fonts.Size, atlas.Sources.Size
|
|
atlas:RemoveFont(comp)
|
|
check(atlas.Fonts.Size == nfonts - 1 and atlas.Sources.Size == nsrc - 1 and not atlas.Fonts:contains(comp), "RemoveFont")
|
|
|
|
-- ImFontAtlasTextureBlockFill(), ImTextureDataGetXXXName()
|
|
local tex = G.ImTextureData(); tex:Create(G.ImTextureFormat.RGBA32, 4, 4)
|
|
G.ImFontAtlasTextureBlockFill(tex, 1, 2, 2, 1, G.IM_COL32(1, 2, 3, 4))
|
|
local px = table.concat(tex.Pixels, ",", 33, 48)
|
|
check(px == "0,0,0,0,1,2,3,4,1,2,3,4,0,0,0,0" and tex.Pixels[29] == 0 and tex.Pixels[53] == 0, "TextureBlockFill " .. px)
|
|
check(G.ImTextureDataGetStatusName(tex.Status) == "WantCreate" and G.ImTextureDataGetFormatName(tex.Format) == "RGBA32", "texture names")
|
|
end
|
|
if f == 5 and #failed == 0 then print("FONTS OK") end
|
|
end)
|