Cursor color for Line measure tool

[magnunor]

When using the Line Measure tool, the cursor changes to a different shape and becomes semi transparent black.

The color is supposed to change based on the color of the image, however this does not work in MacOS or Ubuntu.

[vidartf]

The color inversion is only available on Windows, see Qt docs at http://doc.qt.io/qt-4.8/qcursor.html#QCursor-3. The relevant code in HUI is here:

hyperspyUI/hyperspyui/util.py

Lines 143 to 164 in 21f16ae

	def crosshair_cursor():
	if os.name == 'nt':
	# On windows, cursors support "inversion" mode, where they invert the
	# underlying color. This is achived with two bitmap.
	# Final cursor has mask all 0
	# When main bitmap is 0, this means transparent, when 1, inversion.
	bm = QtGui.QBitmap(16, 16)
	ma = QtGui.QBitmap(16, 16)
	bm.clear()
	ma.clear()
	# Paint a crosshair on the main bitmap with color1.
	pbm = QtGui.QPainter(bm)
	pbm.setPen(QtCore.Qt.color1)
	pbm.drawLine(8, 0, 8, 15)
	pbm.drawLine(0, 8, 15, 8)
	pbm.setPen(QtCore.Qt.color0)
	pbm.drawPoint(8, 8)
	pbm.end()
	return QtGui.QCursor(bm, ma, 8, 8)
	else:
	fn = os.path.dirname(__file__) + '/images/picker.svg'
	return load_cursor(fn, 8, 8)

. On windows it uses a custom cross-hair that relies on the Qt feature linked above; on other platforms it uses a cross-hair SVG.

Maybe your problem could be solved by an improvement to the SVG file?