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#
# VUsbTools.Views
# Micah Dowty <micah@vmware.com>
#
# A container for color and font preferences
#
# Copyright (C) 2005-2009 VMware, Inc. Licensed under the MIT
# License, please see the README.txt. All rights reserved.
#
import math
from VUsbTools.Types import Color
#
# Use the default monospace font. If this is too large/small for your
# tastes, you can try a specific font name and size like "courier 9".
#
monospaceFont = "monospace"
def toMonospaceMarkup(text):
"""Convert arbitrary text to pango markup in our monospace font"""
return '<span font_desc="%s">%s</span>' % (
monospaceFont,
text.replace("&", "&").replace("<", "<"))
directionColors = {
"Up": Color(0x00, 0x00, 0xFF),
"Down": Color(0x00, 0x80, 0x00),
}
directionIcons = {
"Down": "gtk-go-forward",
"Up": "gtk-go-back",
}
errorMarkerColor = Color(0xFF, 0x00, 0x00, 0x80)
diffMarkerColor = Color(0x00, 0xA0, 0x00, 0x30)
diffBorderColor = Color(0x00, 0xA0, 0x00, 0xA0)
emptyTransactionColor = Color(0x80, 0x80, 0x80)
smallTransactionColor = Color(0x80, 0x80, 0xFF)
largeTransactionColor = Color(0xFF, 0xFF, 0x80)
frameMarkerColor = Color(0x00, 0x00, 0xFF)
duplicateFrameColor = Color(0x80, 0x00, 0x00)
def getBarColor(transaction):
"""Get the color to use for a transaction's bar on the timing diagram.
This implementation bases the color on a transaction's size.
"""
s = transaction.datalen or 0
if not s:
return emptyTransactionColor
# For non-empty transactions, the color is actually proportional
# to size on a logarithmic scale.
return smallTransactionColor.lerp(
math.log(s) / math.log(4096), largeTransactionColor)
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