9304049654

Committed 30 May 2024 02:12PM UTC coverage: 60.021% (-14.7%) from 74.707%

Build # 9304049654

Build Type

push

github

Committed by

web-flow

Commit Message

Merge 1a26b4f22 into a1fd105f8

Run Details

6743 of 12900 new or added lines in 186 files covered. (52.27%)

347 existing lines in 49 files now uncovered.

10311 of 17179 relevant lines covered (60.02%)

3307.34 hits per line

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0.0

/packages/rotate/init.lua

UNCOV 1	local base = require("packages.base")	×
2
UNCOV 3	local package = pl.class(base)	×
UNCOV 4	package._name = "rotate"	×
5
6	local enter = function (self, _)
7	-- Probably broken, see:
8	-- https://github.com/sile-typesetter/sile/issues/427
NEW 9	if not self.rotate then	×
NEW 10	return	×
11	end
NEW 12	if not SILE.outputter.enterFrameRotate then	×
NEW 13	return SU.warn(	×
14	"Frame '"
NEW 15	.. self.id("' will not be rotated: backend '")	×
NEW 16	.. SILE.outputter._name	×
NEW 17	.. "' does not support rotation"	×
18	)
19	end
NEW 20	local theta = -math.rad(self.rotate)	×
21	-- Keep center point the same
NEW 22	local x0 = self:left():tonumber()	×
NEW 23	local x1 = x0 + math.sin(theta) * self:height():tonumber()	×
NEW 24	local y0 = self:bottom():tonumber()	×
NEW 25	SILE.outputter:enterFrameRotate(x0, x1, y0, theta) -- Unstable API	×
26	end
27
28	local leave = function (self, _)
NEW 29	if not self.rotate then	×
NEW 30	return	×
31	end
NEW 32	if not SILE.outputter.enterFrameRotate then	×
NEW 33	return	×
34	end -- no enter no leave.
NEW 35	SILE.outputter:leaveFrameRotate()	×
36	end
37
38	-- What is the width, depth and height of a rectangle width w and height h rotated by angle theta?
39	-- rect1 = Rectangle[{0, 0}, {w, h}]
40	-- {{xmin, xmax}, {ymin, ymax}} = Refine[RegionBounds[TransformedRegion[rect1,
41	-- RotationTransform[theta, {w/2,h/2}]]],
42	-- w > 0 && h > 0 && theta > 0 && theta < 2 Pi ]
43	-- PiecewiseExpand[xmax - xmin]
44	-- \[Piecewise] -w Cos[theta]-h Sin[theta] Sin[theta]<=0&&Cos[theta]<=0
45	-- w Cos[theta]-h Sin[theta] Sin[theta]<=0&&Cos[theta]>0
46	-- -w Cos[theta]+h Sin[theta] Sin[theta]>0&&Cos[theta]<=0
47	-- w Cos[theta]+h Sin[theta] True
48
49	local outputRotatedHbox = function (self, typesetter, line)
NEW 50	local origbox = self.value.orig	×
NEW 51	local theta = self.value.theta	×
52
53	-- Find origin of untransformed hbox
NEW 54	local X = typesetter.frame.state.cursorX	×
NEW 55	local Y = typesetter.frame.state.cursorY	×
NEW 56	typesetter.frame.state.cursorX = X - (origbox.width.length - self.width) / 2	×
NEW 57	local horigin = X + origbox.width.length / 2	×
NEW 58	local vorigin = Y - (origbox.height - origbox.depth) / 2	×
59
NEW 60	SILE.outputter:rotateFn(horigin, vorigin, theta, function ()	×
NEW 61	origbox:outputYourself(typesetter, line)	×
62	end)
NEW 63	typesetter.frame.state.cursorX = X	×
NEW 64	typesetter.frame.state.cursorY = Y	×
NEW 65	typesetter.frame:advanceWritingDirection(self.width)	×
66	end
67
UNCOV 68	function package:_init ()	×
NEW 69	base._init(self)	×
NEW 70	if SILE.typesetter and SILE.typesetter.frame then	×
NEW 71	enter(SILE.typesetter.frame, SILE.typesetter)	×
NEW 72	table.insert(SILE.typesetter.frame.leaveHooks, leave)	×
73	end
NEW 74	table.insert(SILE.framePrototype.enterHooks, enter)	×
NEW 75	table.insert(SILE.framePrototype.leaveHooks, leave)	×
76	end
77
UNCOV 78	function package:registerCommands ()	×
NEW 79	self:registerCommand("rotate", function (options, content)	×
NEW 80	if not SILE.outputter.rotateFn then	×
NEW 81	SU.warn("Output will not be rotated: backend '" .. SILE.outputter._name .. "' does not support rotation")	×
NEW 82	return SILE.process(content)	×
83	end
NEW 84	local angle = SU.required(options, "angle", "rotate command")	×
NEW 85	local theta = -math.rad(angle)	×
NEW 86	local origbox, hlist = SILE.typesetter:makeHbox(content)	×
NEW 87	local h = origbox.height + origbox.depth	×
NEW 88	local w = origbox.width.length	×
NEW 89	local st = math.sin(theta)	×
NEW 90	local ct = math.cos(theta)	×
91	local height, width, depth
NEW 92	if st <= 0 and ct <= 0 then	×
NEW 93	width = -w * ct - h * st	×
NEW 94	height = 0.5 * (h - h * ct - w * st)	×
NEW 95	depth = 0.5 * (h + h * ct + w * st)	×
NEW 96	elseif st <= 0 and ct > 0 then	×
NEW 97	width = w * ct - h * st	×
NEW 98	height = 0.5 * (h + h * ct - w * st)	×
NEW 99	depth = 0.5 * (h - h * ct + w * st)	×
NEW 100	elseif st > 0 and ct <= 0 then	×
NEW 101	width = -w * ct + h * st	×
NEW 102	height = 0.5 * (h - h * ct + w * st)	×
NEW 103	depth = 0.5 * (h + h * ct - w * st)	×
104	else
NEW 105	width = w * ct + h * st	×
NEW 106	height = 0.5 * (h + h * ct + w * st)	×
NEW 107	depth = 0.5 * (h - h * ct - w * st)	×
108	end
NEW 109	depth = -depth	×
NEW 110	if depth < SILE.types.length(0) then	×
NEW 111	depth = SILE.types.length(0)	×
112	end
NEW 113	SILE.typesetter:pushHbox({	×
114	value = { orig = origbox, theta = theta },
115	height = height,
116	width = width,
117	depth = depth,
118	outputYourself = outputRotatedHbox,
119	})
NEW 120	SILE.typesetter:pushHlist(hlist)	×
121	end)
122	end
123
124	package.documentation = [[
125	\begin{document}
126	\use[module=packages.rotate]
127	The \autodoc:package{rotate} package allows you to rotate things. You can rotate entire
128	frames, by adding the \autodoc:parameter{rotate=<angle>} declaration to your frame declaration,
129	and you can rotate any content by issuing the command \autodoc:command{\rotate[angle=<angle>]{<content>}},
130	where the angle is measured in degrees.
131
132	Content which is rotated is placed in a box and rotated. The height and width of
133	the rotated box is measured, and then put into the normal horizontal list for
134	typesetting. The effect is that space is reserved around the rotated content.
135	The best way to understand this is by example: here is some text rotated by
136	\rotate[angle=10]{ten}, \rotate[angle=20]{twenty}, and \rotate[angle=40]{forty} degrees.
137
138	The previous line was produced by the following code:
139
140	\begin[type=autodoc:codeblock]{raw}
141	here is some text rotated by
142	\rotate[angle=10]{ten}, \rotate[angle=20]{twenty}, and \rotate[angle=40]{forty} degrees.
143	\end{raw}
144	\end{document}
UNCOV 145	]]	×
146
UNCOV 147	return package	×

sile-typesetter / sile / 9304049654

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