22 lines
845 B
Go
22 lines
845 B
Go
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// 1 march 2014
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package ui
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// #cgo LDFLAGS: -lobjc -framework Foundation -framework AppKit
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// #include "objc_darwin.h"
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import "C"
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// -[NSCell cellSize] is documented as determining the minimum size needed to draw its receiver. This will work for our case; it appears to be what GTK+ does as well.
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// See also: http://stackoverflow.com/questions/1056079/is-there-a-way-to-programmatically-determine-the-proper-sizes-for-apples-built
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// TODO figure out what to do if one of our controls returns the sentinel (10000, 10000) that indicates we can't use -[NSCell cellSize]
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var (
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_cell = sel_getUid("cell")
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_cellSize = sel_getUid("cellSize")
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)
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func (s *sysData) preferredSize() (width int, height int) {
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cell := C.objc_msgSend_noargs(s.id, _cell)
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cs := C.objc_msgSend_stret_size_noargs(cell, _cellSize)
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return int(cs.width), int(cs.height)
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}
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