6934957716

Committed 20 Nov 2023 07:35PM UTC coverage: 57.468% (-3.2%) from 60.703%

Build # 6934957716

Build Type

push

github

Committed by

web-flow

Commit Message

Merge c91d9a7d4 into 34e2e5335

Run Details

60 of 79 new or added lines in 1 file covered. (75.95%)

717 existing lines in 27 files now uncovered.

8957 of 15586 relevant lines covered (57.47%)

5715.38 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
UNCOV 6	local pdf = require("justenoughlibtexpdf")	×
7
8	local enter = function (self, _)
UNCOV 9	if not self.rotate then return end	×
UNCOV 10	local x = -math.rad(self.rotate)	×
11	-- Keep center point the same
UNCOV 12	pdf:gsave()	×
UNCOV 13	local cx = self:left():tonumber()	×
UNCOV 14	local cy = -self:bottom():tonumber()	×
UNCOV 15	pdf.setmatrix(1, 0, 0, 1, cx + math.sin(x) * self:height():tonumber(), cy)	×
UNCOV 16	pdf.setmatrix(math.cos(x), math.sin(x), -math.sin(x), math.cos(x), 0, 0)	×
UNCOV 17	pdf.setmatrix(1, 0, 0, 1, -cx, -cy)	×
18	end
19
20	local leave = function(self, _)
UNCOV 21	if not self.rotate then return end	×
UNCOV 22	pdf:grestore()	×
23	end
24
25	-- What is the width, depth and height of a rectangle width w and height h rotated by angle theta?
26	-- rect1 = Rectangle[{0, 0}, {w, h}]
27	-- {{xmin, xmax}, {ymin, ymax}} = Refine[RegionBounds[TransformedRegion[rect1,
28	-- RotationTransform[theta, {w/2,h/2}]]],
29	-- w > 0 && h > 0 && theta > 0 && theta < 2 Pi ]
30	-- PiecewiseExpand[xmax - xmin]
31	-- \[Piecewise] -w Cos[theta]-h Sin[theta] Sin[theta]<=0&&Cos[theta]<=0
32	-- w Cos[theta]-h Sin[theta] Sin[theta]<=0&&Cos[theta]>0
33	-- -w Cos[theta]+h Sin[theta] Sin[theta]>0&&Cos[theta]<=0
34	-- w Cos[theta]+h Sin[theta] True
35
36	local outputRotatedHbox = function (self, typesetter, line)
UNCOV 37	local origbox = self.value.orig	×
UNCOV 38	local x = self.value.theta	×
39	-- Find origin of untransformed hbox
UNCOV 40	local save = typesetter.frame.state.cursorX	×
UNCOV 41	typesetter.frame.state.cursorX = typesetter.frame.state.cursorX - (origbox.width.length-self.width)/2	×
42
UNCOV 43	local horigin = (typesetter.frame.state.cursorX + origbox.width.length / 2):tonumber()	×
UNCOV 44	local vorigin = -(typesetter.frame.state.cursorY - (origbox.height - origbox.depth) / 2):tonumber()	×
UNCOV 45	pdf:gsave()	×
UNCOV 46	pdf.setmatrix(1, 0, 0, 1, horigin, vorigin)	×
UNCOV 47	pdf.setmatrix(math.cos(x), math.sin(x), -math.sin(x), math.cos(x), 0, 0)	×
UNCOV 48	pdf.setmatrix(1, 0, 0, 1, -horigin, -vorigin)	×
UNCOV 49	origbox:outputYourself(typesetter, line)	×
UNCOV 50	pdf:grestore()	×
UNCOV 51	typesetter.frame.state.cursorX = save	×
UNCOV 52	typesetter.frame:advanceWritingDirection(self.width)	×
53	end
54
UNCOV 55	function package:_init ()	×
UNCOV 56	base._init(self)	×
UNCOV 57	if SILE.typesetter and SILE.typesetter.frame then	×
UNCOV 58	enter(SILE.typesetter.frame, SILE.typesetter)	×
UNCOV 59	table.insert(SILE.typesetter.frame.leaveHooks, leave)	×
60	end
UNCOV 61	table.insert(SILE.framePrototype.enterHooks, enter)	×
UNCOV 62	table.insert(SILE.framePrototype.leaveHooks, leave)	×
63	end
64
UNCOV 65	function package:registerCommands ()	×
66
UNCOV 67	self:registerCommand("rotate", function(options, content)	×
UNCOV 68	local angle = SU.required(options, "angle", "rotate command")	×
UNCOV 69	local theta = -math.rad(angle)	×
UNCOV 70	local origbox, hlist = SILE.typesetter:makeHbox(content)	×
UNCOV 71	local h = origbox.height + origbox.depth	×
UNCOV 72	local w = origbox.width.length	×
UNCOV 73	local st = math.sin(theta)	×
UNCOV 74	local ct = math.cos(theta)	×
75	local height, width, depth
UNCOV 76	if st <= 0 and ct <= 0 then	×
77	width = -w * ct - h * st	×
78	height = 0.5(h-hct-w*st)	×
79	depth = 0.5(h+hct+w*st)	×
UNCOV 80	elseif st <=0 and ct > 0 then	×
UNCOV 81	width = w * ct - h * st	×
UNCOV 82	height = 0.5(h+hct-w*st)	×
UNCOV 83	depth = 0.5(h-hct+w*st)	×
84	elseif st > 0 and ct <= 0 then	×
85	width = -w * ct + h * st	×
86	height = 0.5(h-hct+w*st)	×
87	depth = 0.5(h+hct-w*st)	×
88	else
89	width = w * ct + h * st	×
90	height = 0.5(h+hct+w*st)	×
91	depth = 0.5(h-hct-w*st)	×
92	end
UNCOV 93	depth = -depth	×
UNCOV 94	if depth < SILE.length(0) then depth = SILE.length(0) end	×
UNCOV 95	SILE.outputter:_ensureInit()	×
UNCOV 96	SILE.typesetter:pushHbox({	×
97	value = { orig = origbox, theta = theta},
98	height = height,
99	width = width,
100	depth = depth,
UNCOV 101	outputYourself = outputRotatedHbox	×
102	})
UNCOV 103	SILE.typesetter:pushHlist(hlist)	×
104	end)
105
106	end
107
108	package.documentation = [[
109	\begin{document}
110	\use[module=packages.rotate]
111	The \autodoc:package{rotate} package allows you to rotate things. You can rotate entire
112	frames, by adding the \autodoc:parameter{rotate=<angle>} declaration to your frame declaration,
113	and you can rotate any content by issuing the command \autodoc:command{\rotate[angle=<angle>]{<content>}},
114	where the angle is measured in degrees.
115
116	Content which is rotated is placed in a box and rotated. The height and width of
117	the rotated box is measured, and then put into the normal horizontal list for
118	typesetting. The effect is that space is reserved around the rotated content.
119	The best way to understand this is by example: here is some text rotated by
120	\rotate[angle=10]{ten}, \rotate[angle=20]{twenty}, and \rotate[angle=40]{forty} degrees.
121
122	The previous line was produced by the following code:
123
124	\begin[type=autodoc:codeblock]{raw}
125	here is some text rotated by
126	\rotate[angle=10]{ten}, \rotate[angle=20]{twenty}, and \rotate[angle=40]{forty} degrees.
127	\end{raw}
128	\end{document}
UNCOV 129	]]	×
130
UNCOV 131	return package	×

sile-typesetter / sile / 6934957716

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